180
IASDATA\CHEMOURS\15418.002.018\DIVISION REPORT 11 2019-AMD 1/21/2020 FLUOROMONOMERS MANUFACTURING PROCESS DIVISION STACK EMISSIONS TEST REPORT TEST DATES: 22 NOVEMBER AND 4 DECEMBER 2019 THE CHEMOURS COMPANY FAYETTEVILLE, NORTH CAROLINA Prepared for: THE CHEMOURS COMPANY 22828 NC Hwy 87 W Fayetteville, North Carolina 28306 Prepared by: WESTON SOLUTIONS, INC. 1400 Weston Way P.O. Box 2653 West Chester, Pennsylvania 19380 January 2020 W.O. No. 15418.002.018

Final Division Report

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IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

FLUOROMONOMERS MANUFACTURING PROCESS

DIVISION STACK EMISSIONS TEST REPORT TEST DATES 22 NOVEMBER AND

4 DECEMBER 2019

THE CHEMOURS COMPANY FAYETTEVILLE NORTH CAROLINA

Prepared for

THE CHEMOURS COMPANY 22828 NC Hwy 87 W

Fayetteville North Carolina 28306

Prepared by

WESTON SOLUTIONS INC 1400 Weston Way

PO Box 2653 West Chester Pennsylvania 19380

January 2020

WO No 15418002018

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

THE CHEMOURS COMPANY

FLOROMONOMERS MANUFACTURING PROCESS DIVISION STACK EMISSIONS TEST REPORT

TEST DATES 22 November and 4 December 2019

Weston Solutions Inc (WESTONreg) is a commercial laboratory operating within full accreditation of the Louisiana Environmental Laboratory Accreditation Program under Certificate Number 03024 The qualifications to provide defensible quality data as a certified commercial environmental testing firm as Agency Interest No 30815 was granted by the Louisiana Department of Environmental Quality under the Louisiana Administrative Code of LAC 331 Chapter 45 et al

I certify that I have personally examined and am familiar with the information contained herein Based on my information and belief formed after reasonable inquiry the statements and information in the document are true accurate and complete

Paul M Meeter Weston Solutions Inc

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 i

TABLE OF CONTENTS

Section Page

1 INTRODUCTION1

11 FACILITY AND BACKGROUND INFORMATION 1

12 TEST OBJECTIVES 1

13 TEST PROGRAM OVERVIEW 1

2 SUMMARY OF TEST RESULTS 4

3 PROCESS DESCRIPTIONS 6

31 FLUOROMONOMERS 6

32 PROCESS OPERATIONS AND PARAMETERS 6

4 DESCRIPTION OF TEST LOCATIONS 7

41 DIVISION STACK 7

5 SAMPLING AND ANALYTICAL METHODS 9

51 STACK GAS SAMPLING PROCEDURES 9

511 Pre-Test Determinations 9

52 STACK PARAMETERS 9

521 EPA Method 00109 522 EPA Method 0010 Sample Recovery 11 523 EPA Method 0010 Sample Analysis13

53 MM18 15

54 GAS COMPOSITION 17

6 DETAILED TEST RESULTS AND DISCUSSION 19 APPENDIX A PROCESS OPERATIONS DATA

APPENDIX B RAW AND REDUCED TEST DATA

APPENDIX C LABORATORY ANALYTICAL REPORT

APPENDIX D SAMPLE CALCULATIONS

APPENDIX E EQUIPMENT CALIBRATION RECORDS

APPENDIX F LIST OF PROJECT PARTICIPANTS

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 ii

LIST OF FIGURES

Title Page

Figure 4-1 Division Stack Test Port and Traverse Point Location 8

Figure 5-1 EPA Method 0010 Sampling Train 10

Figure 5-2 HFPO Dimer Acid Sample Recovery Procedures for Method 0010 14

Figure 5-3 Modified EPA Method 18 Sampling Train 16

Figure 5-4 WESTON Sampling System 18

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 iii

LIST OF TABLES

Title Page

Table 1-1 Sampling Plan for Division Stack 3

Table 2-1 Summary of HFPO Dimer Acid Division Stack Test Results 4

Table 2-2 Summary of Target Compound Division Stack Test Results 4

Table 6-1 Summary of HFPO Dimer Acid Test Data and Test Results Division Stack ndash M0010

Runs 1 and 2 20

Table 6-2 Summary of Target Compound Test Data and Test Results Division Stack ndash MM18

Runs 1 2 and 3 22

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 1

1 INTRODUCTION

11 FACILITY AND BACKGROUND INFORMATION

The Chemours Fayetteville Works (Chemours) is located in Bladen County North Carolina

approximately 10 miles south of the city of Fayetteville Chemours operating areas on the site

include the Fluoromonomers IXM and Polymers Processing Aid (PPA) manufacturing areas

Wastewater Treatment and Powerhouse

Chemours contracted Weston Solutions Inc (Weston) to perform HFPO Dimer Acid Fluoride

captured as HFPO Dimer Acid and other target compound emission testing on the Division

stack at the facility Testing was performed on 22 November and 4 December 2019 and generally

followed the ldquoEmission Test Protocolrdquo reviewed and approved by the North Carolina

Department of Environmental Quality (NCDEQ) This report provides the results from the

emission test program

12 TEST OBJECTIVES

The specific objectives for this test program were as follows

Measure the emissions concentrations and mass emissions rates of HFPO Dimer Acid Fluoride and other target compounds from the Division stack which is located in the Fluoromonomers process area

Monitor and record process and emissions control data in conjunction with the test program

Provide representative emissions data

13 TEST PROGRAM OVERVIEW

During the emissions test program the concentrations and mass emissions rates of HFPO Dimer

Acid and other target compounds were measured at the Division stack

Table 1-1 provides a summary of the test location and the parameters that were measured along

with the samplinganalytical procedures that were followed

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 2

Section 2 provides a summary of test results A description of the processes is provided in

Section 3 Section 4 provides a description of the test locations The sampling and analytical

procedures are provided in Section 5 Detailed test results and discussion are provided in

Section 6

Appendix C includes the summary reports for the laboratory analytical results The full

laboratory data packages are provided in electronic format

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 4

2 SUMMARY OF TEST RESULTS

A total of three MM18 and two M0010 test runs were performed on the Division stack Table 2-1

provides a summary of the HFPO Dimer Acid emissions test results associated with M0010

Table 2-2 provides a summary of the target compound emissions test results associated with

MM18 Detailed test results summaries are provided in Section 6

It is important to note that emphasis is being placed on the characterization of the emissions

based on the M0010 stack test results Research conducted in developing the protocol for stack

testing HFPO Dimer Acid Fluoride HFPO Dimer Acid Ammonium Salt and HFPO Dimer Acid

realized that the resulting testing including collection of the air samples and extraction of the

various fraction of the sampling train would result in all three compounds being expressed as

simply the HFPO Dimer Acid However it should be understood that the total M0010 HFPO

Dimer Acid results provided in Table 2-1 and in this report include a percentage of each of the

three compounds

Table 2-1 Summary of M0010 HFPO Dimer Acid Division Stack Test Results

Division Stack ndash M0010 gsec lbhr

R1 194E-04 154E-03 R2 339E-04 269E-03 Average 266E-04 212E-03

Samples taken using MM18 were analyzed for the following volatile organic compounds (ldquotarget

compoundsrdquo) HFPO Dimer Methyl Ester as HFPO (HFPO Dimer Methyl Ester) 2-MTP as

HFPO (HFPO Monomer) Heptafluoropropyl 1222-tetrafluoroethyl ether (Fluoroether E-1)

Carbonyl Difluoride Total Fluorine and Hydrogen Fluoride Results of MM18 target compound

analysis are provided in Table 2-2

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 5

Table 2-2 Summary of MM18 Target Compound Division Stack Test Results

Target Compound

Division Stack MM18 Run 1

Division Stack MM18 Run 2

Division Stack MM18 Run 3

gsec lbhr gsec lbhr gsec lbhr HFPO Dimer Methyl Ester

lt438E-03 lt348E-02 lt260E-03 lt207E-02 lt263E-03 lt209E-02

HFPO Monomer

374E-01 297E+00 315E-01 250E+00 192E+00 153E+01

Fluoroether E-1

291E-02 231E-01 667E-02 530E-01 241E-02 192E-01

Carbonyl Difluoride

lt134E-02 lt106E-01 lt796E-03 lt633E-02 lt803E-03 lt638E-02

Total Fluorine

727E+00 578E+01 594E+00 472E+01 140E+01 111E+02

Hydrogen Fluoride

lt182E-01 lt145E+00 lt109-01 lt863E-01 lt110E-01 lt870E-01

Note All lt values were below the laboratory analysis detection limits Emission rates were calculated using the method detection limit (MDL) for the first analytical fraction of the target compound

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 6

3 PROCESS DESCRIPTIONS

The Fluoromonomers area is included in the scope of this test program

31 FLUOROMONOMERS

These facilities produce a family of fluorocarbon compounds used to produce Chemours

products such as Nafionreg Krytoxreg and Vitonreg as well as sales to outside customers

At the time of testing process emissions were vented to the Division waste gas scrubber system

(which included the secondary scrubber) and vented to the Carbon Bed and then into the

Division stack The VE North building air systems were vented to the Carbon Bed and then into

the Division stack

32 PROCESS OPERATIONS AND PARAMETERS

The following table is a summary of the operation and products from the specific areas tested

Source OperationProduct Batch or Continuous VE North

PPVE Condensation is continuous Agitated Bed Reactor and Refining are batch

During the test program the following parameters were monitored by Chemours and are

included in Appendix A

Fluoromonomers Process o VEN Precurser Rate o VEN Condensation Rate o VEN ABR Rate

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 7

4 DESCRIPTION OF TEST LOCATIONS

41 DIVISION STACK

Two 6-inch ID test ports were installed on the 36-inch ID fiberglass stack as shown below The

four vents that enter the top of the stack and the one vent ~11 feet below are catch pots which

under normal process operations do not discharge to the stack They are used to vent process gas

to the stack in the event of a process upset and are not considered a flow contributor or a

disturbance

Per EPA Method 1 a total of 12 traverse points (six per axis) were used for M-0010 isokinetic

sampling Figure 4-1 provides a schematic of the test ports and traverse point locations

Location Distance from Flow Disturbance Downstream (B) Upstream (A)

Division Stack 30 feet gt 10 duct diameters

9 feet gt 3 diameters

The EPA Method 18 sample was collected at a constant rate at a single point at the approximate

center of the stack

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 9

5 SAMPLING AND ANALYTICAL METHODS

51 STACK GAS SAMPLING PROCEDURES

The purpose of this section is to describe the stack gas emissions sampling trains and to provide

details of the stack sampling and analytical procedures utilized during the emissions test

program

511 Pre-Test Determinations

Preliminary test data were obtained at the test location Stack geometry measurements were

measured and recorded and traverse point distances verified A preliminary velocity traverse

was performed utilizing a calibrated S-type pitot tube and an inclined manometer to determine

velocity profiles Flue gas temperatures were observed with a calibrated direct readout panel

meter equipped with a chromel-alumel thermocouple Preliminary water vapor content was

estimated by wet bulbdry bulb temperature measurements

A check for the presence or absence of cyclonic flow was previously conducted at the test

location The cyclonic flow check was negative (lt 20deg) verifying that the test location was

acceptable for testing

Preliminary test data was used for nozzle sizing and sampling rate determinations for isokinetic

sampling procedures

Calibration of probe nozzles pitot tubes metering systems and temperature measurement

devices was performed as specified in Section 5 of EPA Method 5 test procedures

52 STACK PARAMETERS

521 EPA Method 0010

The sampling train utilized to perform the HFPO Dimer Acid sampling at the location was an

EPA Method 0010 train (see Figure 5-1) The Method 0010 consisted of a borosilicate nozzle

that attached directly to a heated borosilicate probe In order to minimize possible thermal

degradation of the HFPO Dimer Acid the probe and particulate filter were heated above stack

temperature to minimize water vapor condensation before the filter The probe was connected

directly to a heated borosilicate filter holder containing a solvent extracted glass fiber filter

18

10

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 11

A section of borosilicate glass or flexible polyethylene tubing connected the filter holder exit to a

Grahm (spiral) type ice water-cooled condenser an ice water-jacketed sorbent module containing

approximately 40 grams of XAD-2 resin The XAD-2 resin tube was equipped with an inlet

temperature sensor The XAD-2 resin trap was followed by a condensate knockout impinger and

a series of two impingers that contained 100 mL of high-purity distilled water The train also

included a second XAD-2 resin trap behind the impinger section to evaluate possible sampling

train breakthrough Each XAD-2 resin trap was connected to a 1-liter condensate knockout trap

The final impinger contained 300 grams of dry pre-weighed silica gel All impingers and the

condensate traps were maintained in an ice bath Ice water was continuously circulated in the

condenser and the XAD-2 module to maintain method-required temperature A control console

with a leakless vacuum pump a calibrated orifice and dual inclined manometers was connected

to the final impinger via an umbilical cord to complete the sample train

HFPO Dimer Acid Fluoride (CAS No 2062-98-8) that is present in the stack gas is expected to

be captured in the sampling train along with HFPO Dimer Acid (CAS No 13252-13-6) HFPO

Dimer Acid Fluoride underwent hydrolysis instantaneously in water in the sampling train and

during the sample recovery step and was converted to HFPO Dimer Acid such that the amount

of HFPO Dimer Acid emissions represented a combination of both HFPO Dimer Acid Fluoride

and HFPO Dimer Acid

During sampling gas stream velocities were measured by attaching a calibrated S-type pitot tube

into the gas stream adjacent to the sampling nozzle The velocity pressure differential was

observed immediately after positioning the nozzle at each traverse point and the sampling rate

adjusted to maintain isokineticity at 100 plusmn 10 Flue gas temperature was monitored at each

point with a calibrated panel meter and thermocouple Isokinetic test data was recorded at each

traverse point during all test periods as appropriate Leak checks were performed on the

sampling apparatus according to reference method instructions prior to and following each run

component change (if required) or during midpoint port changes

522 EPA Method 0010 Sample Recovery

At the conclusion of each test the sampling train was dismantled the openings sealed and the

components transported to the field laboratory trailer for recovery

A consistent procedure was employed for sample recovery

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 12

1 The two XAD-2 covered (to minimize light degradation) sorbent modules (1 and 2) weresealed and labeled

2 The glass fiber filter(s) were removed from the holder with tweezers and placed in apolyethylene container along with any loose particulate and filter fragments

3 The particulate adhering to the internal surfaces of the nozzle probe and front half of thefilter holder were rinsed with a solution of methanol and ammonium hydroxide into apolyethylene container while brushing a minimum of three times until no visibleparticulate remained Particulate adhering to the brush was rinsed with methanolammonium hydroxide into the same container The container was sealed

4 The volume of liquid collected in the first condensate trap was measured the valuerecorded and the contents poured into a polyethylene container

5 All train components between the filter exit and the first condensate trap were rinsed withmethanolammonium hydroxide The solvent rinse was placed in a separate polyethylenecontainer and sealed

6 The volume of liquid in impingers one and two and the second condensate trap weremeasured the values recorded and the sample was placed in the same container as Step 4above then sealed

7 The two impingers condensate trap and connectors were rinsed with methanolammonium hydroxide The solvent sample was placed in a separate polyethylenecontainer and sealed

8 The silica gel in the final impinger was weighed and the weight gain value recorded

9 Site (reagent) blank samples of the methanolammonium hydroxide XAD resin filterand distilled water were retained for analysis

Each container was labeled to clearly identify its contents All samples were maintained cool

Following sample recovery all samples were transported to Eurofins TestAmerica

(TestAmerica) for sample extraction and analysis

See Figure 5-2 for a schematic of the Method 0010 sample recovery process

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 13

523 EPA Method 0010 Sample Analysis

Method 0010 sampling trains resulted in four separate analytical fractions for HFPO Dimer Acid

analysis according to SW-846 Method 3542

Front-half Compositemdashcomprised of the particulate filter and the probe nozzle and

front-half of the filter holder solvent rinses

Back-half Compositemdashcomprised of the first XAD-2 resin material and the back-half of

the filter holder with connecting glassware solvent rinses

Condensate Compositemdashcomprised of the aqueous condensates and the contents of

impingers one and two with solvent rinses

Breakthrough XAD-2 Resin Tubemdashcomprised of the resin tube behind the series of

impingers

The second XAD-2 resin material was analyzed separately to evaluate any possible sampling

train HFPO-DA breakthrough

The front-half and back-half composites and the second XAD-2 resin material were placed in

polypropylene wide-mouth bottles and tumbled with methanol containing 5 NH4OH for 18

hours Portions of the extracts were processed analytically for the HFPO dimer acid by liquid

chromatography and duel mass spectroscopy (HPLCMSMS) The condensate composite was

concentrated onto a solid phase extraction (SPE) cartridge followed by desorption from the

cartridge using methanol Portions of those extracts were also processed analytically by

HPLCMSMS

18

3

14

VACUUM LINEMAINVALVE

TEMPERATURESENSORS

BY-PASS VALVE

DRY GASMETER

CUBIC LITERS

ORIFICE

VACUUMGAUGE

AIR-TIGHT

PUMP

DRY ICE AND METHANOL

BATH

METHANOL IN EACH IMPINGER

FIGURE 5-3MODIFIED EPA METHOD 18 SAMPLING TRAIN FOR PFAS COMPOUNDS

GLASS IMPINGERS

STACK WALL

PLASTIC OR GLASS PROBE

PRESSUREDIFFERENTIAL

GAUGE

8 3 18

16

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 17

54 GAS COMPOSITION

The Weston mobile laboratory equipped with instrumental analyzers was used to measure carbon

dioxide (CO2) and oxygen (O2) concentrations A diagram of the Weston sampling system is

presented in Figure 5-4

For the Division stack test campaign the sample was collected at the exhaust of the Method

0010 sampling system At the end of the line a tee permitted the introduction of calibration gas

The sample was drawn through a heated Teflonreg sample line to the sample conditioner The

output from the sampling system was recorded electronically and one minute averages were

recorded and displayed on a data logger

Each analyzer was set up and calibrated internally by introduction of calibration gas standards

directly to the analyzer from a calibration manifold The calibration manifold is designed with an

atmospheric vent to release excess calibration gas and maintained the calibration at ambient

pressure The direct calibration sequence consisted of alternate injections of zero and mid-range

gases with appropriate adjustments until the desired responses were obtained The high-range

standards were then introduced in sequence without further adjustment

The sample line integrity was verified by performing a bias test before and after each test period

The sampling system bias test consisted of introducing the zero gas and one up-range calibration

standard in excess to the valve at the probe end when the system was sampling normally The

excess calibration gas flowed out through the probe to maintain ambient sampling system

pressure Calibration gas supply was regulated to maintain constant sampling rate and pressure

Instrument bias check response was compared to internal calibration responses to insure sample

line integrity and to calculate a bias correction factor after each run using the ratio of the

measured concentration of the bias gas certified by the calibration gas supplier

The oxygen and carbon dioxide content of each stack gas was measured according to EPA

Method 3A procedures which incorporate the latest updates of EPA Method 7E A Servomex

Model 4900 analyzer (or equivalent) was used to measure oxygen content A Servomex Model

4900 analyzer (or equivalent) was used to measure carbon dioxide content of the stack gas Both

analyzers were calibrated with EPA Protocol gases prior to the start of the test program and

performance was verified by sample bias checks before and after each test run

I

4

184

18

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 19

6 DETAILED TEST RESULTS AND DISCUSSION

M0010 test run number two was stopped prior to the full run time due to a process upset in the

area The run was considered complete and the sample was recovered and submitted for analysis

A total of two M0010 test runs were performed at the location A total of three MM18 test runs

were performed at the location

Table 6-1 provides detailed M0010 test data and test results for Division stack Table 6-2

provides detailed MM18 test data and test results for the Division stack

The Method 3A sampling indicated that the O2 and CO2 concentrations were at ambient air

levels (209 O2 0 CO2) therefore 209 O2 and 0 CO2 values were used in all

calculations

It should be noted that methylene chloride was identified in the MM18 analytical results This

detection was due to a special procedure done in the process area in which methylene chloride

was used to unplug equipment that experienced plugging during testing Methylene chloride

would not typically be detected in this process area

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

APPENDIX A PROCESS OPERATIONS DATA

24

Division

Date 11222019TimeStack TestingHFPOVEN ProductVEN PrecursorVEN Condensation (HFPO)VEN ABRVEN RefiningStripper Column VentDivision WGS Recirculation FlowDivision WGS Inlet Flow

Date 1242019TimeStack TestingHFPOVEN ProductVEN PrecursorVEN Condensation (HFPO)VEN ABRVEN RefiningStripper Column VentDivision WGS Recirculation FlowDivision WGS Inlet Flow

800 900 1000 1100 1300 1400 1500 1600RUN 1 0826-1022 RUN 2 - 1139-1320

1200

PPVE

Burnout

15000 kgh142 kgh 145 kgh 148 kgh 150 kgh 135 kgh 128 kgh 74 kgh103 kgh

RUN 3 0955-1125

PPVE

800 900 1000 1100

15000 kgh65 kgh 73 kgh 110 kgh

25

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

APPENDIX B RAW AND REDUCED TEST DATA

26

Sample and Velocity Traverse Point Data Sheet - Method 1

Client CJtl 11 eAAI Operator Loact1onPlant Vltf t fcu I le v Date 2J- l

Source ( v ) _5 -rj(L W O Number JT(t O

Duct Type Circular D Rectangular Duct Indicate eppropMate type

Traverse Type II( Particulate Traverse D Velocity Traverse D CEM Traverse

Distance from far wall to outside of oort lln l = C ltdeglt ) Flow Disturbances -

Port Deoth (in) = D 121 ur Upstream - A (ft) (1 (t I

Deoth or Duct diameter (inI= C-D I (I Area of Duct (ff) -11 7 01 - - --

Total Traverse Points 1 I tJ fa

Total Traverse Points oer Port

Port Diameter flnl-Flanae-Threaded-Holel l I

Monorail Lenoth t) Rectangular Ducts Onty

Width of Duct rectanaular duct only (In I Total Ports (rectanoular duct only) Eauivalent Diameter= 12middotL Wl(L+W)

Traverse Point Locations

Distance from Traverse Inside Duct Distance1from Outside of

Point of Duct Wallinl Portin)

1 1 i I 1- I b2 jtmicro 1poundgt

2 ( gt-0 h A il1

l y gtf-uir 7 vr

3 21 I09S- timiddot 1T 1e 1 tJ lDI 1

Igt 4 7 V

5

6

7

8

10

11

12

1

2

3

9S i 31 9 l- t

Cf5lv 35)7 $ f

- L

4Mre (

CEM 3 Polnl(Long Measurmbullnt Unbull) StraUflcaton POnt Locations

0167

050

0833 Note If stack dla lt 12 inch use EPA Method 1A

(Sample port upstream of pilot port) Note stack dia gt24 then adjust traverse point to 1 inch from wall

If stack dia lt24 then adjust traverse point to 05 inch from wall

l 2 T I 146

r 2 854 ) L

4 bull 0

r C 5 bull a 6 o I 7

8 p 0 o n 9

I 10

n II 12

Traverso Point Location Ptrcant of Stack Circular

J 4

67

25

75

i

NwnberofT IPoints 5 6 8

44 32

146 tQ5

296 194

704 123

854 677

956 8D6

895

96B

9 10

26

82 146

226

)42

658

774

1154 918

974

ll

tfltr

middotltt

12

21

67 118 111

25

l56

644

15

823

w 9)3

979

Downstream - B (ft) -

91 Qt

Upstream - A (duct diameters t

Downstream - B duct diameters) 61Diagram of Stack

11 _ ---

ltl Igt-

ry middoti 5D -

j

--

Duct 0middot1ameters Upstream from Flow Disturbance (Distance A

05 1 0 1 5 20 25 50

I I I I I I I

Stack Diametergt 24 Inches deg t

40 - A

plusmn --- -middot

Minimum Number cf bull

l

JO -Particulate Traverse Points

l _

24 (chular) 25 (mctangulw dlJdltl)

20 -

Traverse Polllls for Velocity 16

12

I 10 _ Disturbance =Band Expansion Contraction etc

B(tmJiir)lilj

S1adDlaarDti1224Rnefl

4

Duct Dlemehn Downstraam from Acv Dl1furbance (Olslenca B)

Travers Point Location Panent of Stack ootanaular

NIJlber ofTnrne Polnls I 2 l 4 5 6 7 8 9 10 II ll

T I 250 167 125 100 8J 71 6J 56 50 45 41

2 7SO 51l0 31J 300 25J ZIA 18J 167 ISII llli 11l J 8) 3 625 500 417 )57 JU 278 250 227 208 l

4 75 70I ID 5110 431 IU 310 318 29Z o 5 900 750 60 563 500 4SO 409 Jll a 6 911 JU 611 U ru tea 458 I 7 C29 813 722 650 91 l4l

i tu w 750 42 ill p 0

o n i 944 850 m 708 I 10 i5JI 1164 191

II 955 875 12 JJI

27

CHEMOURS - FAYETTEVILLE NCINPUTS FOR HFPO DIMER ACID CALCULATIONS

DIVISION STACK

Test DataRun number 1 2Location Divison Stack Divison StackDate 112219 112219Time period 0826-1022 1139-1324Operator BB BB

Inputs For CalcsSq rt delta P 145039 122804Delta H 14025 10010Stack temp (degF) 716 794Meter temp (degF) 570 652Sample volume (act) 63136 47088Barometric press (inHg) 3002 3002Volume H2O imp (ml) 100 70Weight change sil gel (g) 244 145 CO2 00 00 O2 209 209 N2 791 791Area of stack (sqft) 7070 7070Sample time (min) 960 840Static pressure (inH2O) -035 -035Nozzle dia (in) 0160 0160Meter box cal 09972 09972Cp of pitot tube 084 084Traverse points 12 12

122020 1102 AM 112219 Div Stack M001028

ISOKINETIC FIELD DATA SHEET EPA Method 0010 - HFPO Dimer Acid Page J~ orb client chemours Stack Conditions Meter Box ID K Factor Q wo 15418002018 Assumed Actual MeterBox Y rjq7 a Project ID Chemours Moisture ^~ 3 Meter Box Del H ~ $j ~~ Illltlal Mid-Point Final ModeSource ID Division Impinger Vol (ml) Probe ID Length L~~ ~ Sample Train (ft3) o o D 5 GAO U (~(~ Samp Loc ID STK Silica gel (g) Probe Material ~Boro Leak Check (in Hg) `~ ~ S ~~ ~

Run NoID 1 CO2 deg by Vol Q Pitot Thermocouple ID Pitot leak check good yes no no no Test Method ID M0010 02 by Vol ~ ~ Pitot Coe~cient 84~r Pitot Inspection good no ye no no Date ID NOV2019 Temperature (degF) ~ Noale ID ~~ Method 3 System good yes no yes no yes no SourceLocation Div(sion Stack Meter Temp (F) l~ Noale Measurements ~ 6 p ~ LO Temp Check re-Test Set POSt-Test Set Sample Date ~ Static Press (in H2O) mdash ~ 3 ~j ~J Avg Noale Dia (in) ~ ~ 6 bull ~ Meter Box Temp

Baro Press (in Hg) Area of Stack (ftz) Q~ Reference Temp Operator Ambient Temp (degF) ~ ~ Sample Time `~ (~ PasslFail (+- 2deg~ Pass Fail Pass Fail

Total Traverse Pts ~ a Temp Change Response ~ yes no yes no

~~r~~~-

~~mdash~~ ~ ~ ~ ~ ~ i ~~~~mdash

~~-~~~Itibull1~~~ bull ~~~~~~~_~~

~~-~ I ~~~~~~~~~- ~~~

avg uena r ( vvg uerca ry

a ~ ~Ib J Ava Sart Delta P Avo Sart Dei t

i oral vowme~ ( b vvg i s

~~~ nments

J ~lr ~ ~~~~13~

J

vvg i m J rvun~nnax rvunlnnax nnax rwax vac nnin~rv~ax

~~ d ltltu~~~~ te6~~~~( sq g H~ly~ EPA Method 0010 from EPA SW- 46

(~ Q~ ~~~ 29

ISOHINETIC FIELD DATA SHEET EPA Method 0010 - HFPO Dimer Acid Page ~ or 1 Client Chemours Stack Conditions Meter Box ID qq~ ~ K Factor ~ 6 WO 15418002018 Assumed Actual Meter Box Y Project ID Chemours Moisture ~ Meter Box Del H ( gj ~ Init181 Mid-Point FIn81 ModeSource ID Division Impinger Vol (ml) Probe ID Length H q 4 ~ 6~ Sample Train (ft3) ~ Oo ~ jj ~ Samp Loc ID STK Silica gel (g)

mdash~ Probe Material Boro Leak Check (in Hg) ~

Run NoID 2 CO2 by Vol Pitot Thermocouple ID Pitot leak check good ~ no e no yes np Test Method ID M0010 02 deg by Vol ~ q Pitot Coefficient 084 Pitot Inspection good no e no yes no Date ID S L

NOV2019 Temperature (degF) MeterT m F

~~ Noale ID Method 3 S stem ood Y 9 Yes no yes no yes no ource ovation Diviswn Stack e P ( ) Noale Measurements I b~ ~ 60 ~ (~ Temp Check Pre-Test et Post-Test Set

Sample Date ~ ~ a mdash ( Static Press (in Hz0) mdash~ 3 Avg Noale Dia (in) ( ~ Meter Box Temp Baro Press (in Hg) Q Area of Stack (ft2) Reference Temp Operator Ambient Temp (degF) SQ Sample Time _q~-- `~j PassFail (+- 2deg) Pass Fail Pass Fail

Total Traverse Pts ~ ~ Temp Change Response yes no ves no

bull

mdash~~~~ ~ bull

~~~~--- ~~~

~~mdash~~ ~ r ~ ~~~~~-

1~__2~ 000~5~

Avg Sgrt Delta P Avg Sgrt Del

t-~`~~5 ~~~~~~~

bully bull~ r ~~~~~~~~a~ miuimnn man max vac mnuPnax

~~ flg~ ~1q~1 lo ~-- QOIl2(o g3(tl5 (a~ (v ~I`b~(o0 Comments EPA Method 0010 from EPA SW-846

_ t~~ ~~_~- 30

12120201028 AM 112219 Div Stack MM18

TEST DATA Test run number 1 2 3 Location Division Stack Division Stack Division Stack Test date 112219 112219 12419 Test time period 0826-1022 1139-1318 0955-1125Operator WF WF KS

SAMPLING DATA Duration minutes 84 78 90 Average dry gas meter press in H2O 341 356 500 Average dry gas meter temp deg F 549 6600 5450 Average absolute meter temp deg R 5149 5260 5145 Sample vol at meter cond dcl 143580 147394 159313 Meter box calibration Y 09996 09996 10140 Barometric pressure in Hg 3002 3002 3012 Sample volume dscl (1) 148843 149624 168860 Sample volume dscf (1) 5256 5283 5963

VOLUMETRIC FLOW RATE Avg gas stream volumetric flow dscfmin 33787 28485 31136

(1) Standard conditions = 68 deg F (20 deg C) and 2992 inches Hg (760mm Hg)

CHEMOURS-FAYETTEVILLE NCINPUTS FOR EPA MM18 TARGET COMPOUND CALCULATIONS

DIVISION STACK

32

FIELD DATA SHEET Client Chemours Run No

WO 15418002018 Test Method

Project ID CHEM-F Date

ModeSource ID Division Baro Press (in Hg)

Samp Loc Stack Ambient Temp (degF)

Source Division Stk Operator

Sample Time Comments Initial Probe Leak check

Final Probe Leak check

MM 1 S - HFPO Diener Acid Page ~ of ~ 1 Meter Box ID

Modified M18 Meter Box Y Q G

Nov 2019 Probe IDLength Leak Check (in Hg) (~~~ ~bdquo~~~ I I (~Q (1~~ ~

3Q (~Z Probe Material Pitot leak check good yecLpry yes no y~uc_Law

bull ~

~~- ~~ ~~

~ ~~ ~ --~

------ --

Avg Delta H Total Volume Avg Tm Max Temp Max Vac Max Temp

33

FIELD DATA SHEET Client

W O

Project ID

ModeSource ID

Samp Loc

Source

Comments

Chemours Run No

15418002018 Test Method

CHEM-F Date

Division Baro Press (in Hg)

Stack Ambient Temp (degF)

Division Stk Operator

Sample Time

Initial Probe Leak check Final Probe Leak check

MM 18 - HFPO Dimer Acid 2 Meter Box ID ~0

Modified M18 Meter Box Y G~ ~+ Nov 2019 Probe IDLength Leak Check (in Hg)

~(~ p ~ Probe Material Pitot Teak check good

da W

~~ ~laquo

Page ~ of

pJCH ~~~

yes no yes no

~~~~ r ~~~rl~~~f~r~~~~ ~ ~ ~m~ - ~c~1 ~~~P~~~~i~ ~ ~m~ ~~~c~~~~~l~~~~ ~

m ~ ~_-1

~~bulls~s7xix~~rax a

Hvg ueita n ~ i otai volume

35~ ~ I~1~~ Hvg i m Hoax I emp Max Vac Max Temp

l~ ~

34

~~v S~~-~Ll~

SAMPLE RECOVERY FIELD DATA

Client r~i4 ~`~ WO LocationPlant ~ ~~ bdquomdash r Source ampLocation J I~

Run No Sample Date ~~~~ ~ Recovery Date gt ~

Sample ID ~ ~~(~ Analyst ~ ~ Filter Number

Im in er 1 2 3 4 5 6 7 Im Total 8 Total

Contents Silica Gel

Final ~~ ~~j~zj ~ ~~7i ~ ~

~ `~ 1

Initial ~ G~ ~~ ~ ~ ~~ ~ ~ ~ utJ~ ~d

ca~~ I3 ~- -_~ i ImpingerColor ~A~ j~=~~ Labeled

mdash~ Silica Gel Condition Sealed

Run No ~ Sample Date ~ ~~ Recovery Date ~~~

Sample ID Analyst Filter Number ~~

Im in er 1 2 3 4 5 6 7 ImpTotai 8 Total

Contents Silica Gel

Final ~~r ~ 1o~i(~ ~0~ ~ ~Os

Initial ~ rs b~~~~ ~~~ ~~ Q ~~ f

Gain ~s d d

Impinger Color ~j ( ~ Labeled

Silica Gel Condition Sealed

Run No lf~ Sample Dated ~ ~ Recovery Date ~~ tmdash

Sample ID ~ Analyst Filter Number

Im in er 1 2 3 4 5 6 7 ImpTotal 8 Total

Contents Silica Gel

Final ~ t ~~r ~ b s ~ ~ 0 ~1 ~~~ b~

initial ~ ~ = ~ v b ~~gt ~ ~ ~~ - ~j

Gain ~ 4 ~G(~j~ ~ Impinger Color -~ ~ La~ed

Silica Gel Condition Sealed

Check COC for Sample IDs of Media Blanks ~ ~~

~

~~

35

FIELD DATA SHEET MM 18 Client Chemours Run No 1 Meter Box ID

WO 15418002018 Test Method Modified M18 Meter Box Y D I~

Project ID CHEM-F Date ~I Dec 2019 Probe IDLength Leak Check (in Hg)

ModeSource ID VE NoRh Baro Press (in Hg) 3~~ Probe Mate~ai Pitot leak check good Samp Loc Stack Ambient Temp (degF) O

Source Division Operator f

Sample Time ~~ M~

Comments Initial Probe Leak check ~~ a ~~pi~

Final Probe Leak check ~~i y ~r~~~p

Page ~ of

yes no yes no yes no

a~ ~a~~~ o~r~~~~

~~~ ~~~~a~ ~~~ ~

~~~~ I ~~ ~~ ~ ~ ~~~~~~~~~ ~~~~em~~

--- -- ~~-

--~ -- ~~-~ Avg Delta HJ Total Volume Avg Tm MaxTemp Max Vac Max Temp

36

SAMPLE RECOVERY FIELD DATA

Client ~ ~ lam C~1` s WO l~ 4 l~ gt~ti~- =~~ ~vi LocatioNPlant r-c~ t~ Source ampLocation ~ C JV~3c- mdash ~ y~~ ~~ 5

Run No 3 Sample Date Iz-~ ~-1 mdash j ~ Recovery Date ~~9

Sample ID Analyst Filter Number i l~ Im in er

1 2 3 4 5 6 7 Im Total 8 Total Contents Silica Gel

Final 4 ~ ~ G~ U ~O ~ ~ C1 ~~ 3 ~ _

Initial ~ ~ ~ C1~ bull ~- L ~c3~-~j ~ 13~

Gain C~ ~ d + t ~ ~ ~L O ~ ~ ~ v r C7 r

Impinger Color ______~~ Labeled r

Silica Gel Condition +~U Sealed

Run No Sample Date Recovery Date

Sample ID Analyst Filter Number

Im in er 1 2 3 4 5 6 7 ImpTotal 8 Total

Contents ~ Silica Gel

Final

Initial ~~~ ~~0 607` ~C~ ~~ ~~ ~ f3 ~3

Gain

Impinger Color Labeled

Silica Gel Condition Sealed

Run No Sample Date Recovery Date

Sample ID Analyst Filter Number

Im in er 1 2 3 4 5 6 7 ImpTotal 8 Total

Contents Silica Gel

Final

Initial

Gain

Impinger Color Labeled

Silica Gel Condition Sealed

Check COC for Sample IDs of Media Blanks ~`

k3aT~AF c

37

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

APPENDIX C LABORATORY ANALYTICAL REPORT

38

ANALYTICAL REPORTJob Number 140-17458-1

Job Description VEN Stack - M0010

Contract Number LBIO-67048

ForChemours Company FC LLC The

co AECOMSabre Building Suite 300

4051 Ogletown RoadNewark DE 19713

Attention Michael Aucoin

_____________________________________________

Approved for releaseCourtney M AdkinsProject Manager II12102019 307 PM

Courtney M Adkins Project Manager II5815 Middlebrook Pike Knoxville TN 37921

(865)291-3000courtneyadkinstestamericainccom

12102019

This report may not be reproduced except in full and with written approval from the laboratory For questions please contact the Project Manager atthe e-mail address or telephone number listed on this page

The test results in this report relate only to the samples as received by the laboratory and will meet all requirements of the methodology with anyexceptions noted This report shall not be reproduced except in full without the express written approval of the laboratory All questions should bedirected to the Eurofins TestAmerica Project Manager

This report has been electronically signed and authorized by the signatory Electronic signature is intended to be the legally binding equivalent of atraditionally handwritten signature

Eurofins TestAmerica Knoxville

5815 Middlebrook Pike Knoxville TN 37921

Tel (865) 291-3000 Fax (865) 584-4315 wwwtestamericainccom

12102019Page 1 of 21339

Table of ContentsCover Title Page 1

Data Summaries 4

Definitions 4

Method Summary 5

Sample Summary 6

Case Narrative 7

QC Association 9

Client Sample Results 11

Default Detection Limits 13

Surrogate Summary 14

QC Sample Results 15

Chronicle 18

Certification Summary 22

Manual Integration Summary 24

Organic Sample Data 25

LCMS 25

8321A_HFPO_Du 258321A_HFPO_Du QC Summary 268321A_HFPO_Du Sample Data 32Standards Data 40

8321A_HFPO_Du ICAL Data 408321A_HFPO_Du CCAL Data 63

Raw QC Data 758321A_HFPO_Du Tune Data 758321A_HFPO_Du Blank Data 808321A_HFPO_Du LCSLCSD Data 92

12102019Page 2 of 21340

Table of Contents8321A_HFPO_Du Run Logs 1058321A_HFPO_Du Prep Data 107

Method DV-LC-0012 114Method DV-LC-0012 QC Summary 115Method DV-LC-0012 Sample Data 123Standards Data 147

Method DV-LC-0012 CCAL Data 147Raw QC Data 165

Method DV-LC-0012 Tune Data 165Method DV-LC-0012 Blank Data 170Method DV-LC-0012 LCSLCSD Data 182

Method DV-LC-0012 Run Logs 198Method DV-LC-0012 Prep Data 200

Shipping and Receiving Documents 206

Client Chain of Custody 207

12102019Page 3 of 21341

DefinitionsGlossaryJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

Qualifiers

LCMSQualifier Description

LCS or LCSD is outside acceptance limits

Qualifier

B Compound was found in the blank and sample

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

GlossaryThese commonly used abbreviations may or may not be present in this report

curren Listed under the D column to designate that the result is reported on a dry weight basis

Abbreviation

R Percent Recovery

CFL Contains Free Liquid

CNF Contains No Free Liquid

DER Duplicate Error Ratio (normalized absolute difference)

Dil Fac Dilution Factor

DL Detection Limit (DoDDOE)

DL RA RE IN Indicates a Dilution Re-analysis Re-extraction or additional Initial metalsanion analysis of the sample

DLC Decision Level Concentration (Radiochemistry)

EDL Estimated Detection Limit (Dioxin)

LOD Limit of Detection (DoDDOE)

LOQ Limit of Quantitation (DoDDOE)

MDA Minimum Detectable Activity (Radiochemistry)

MDC Minimum Detectable Concentration (Radiochemistry)

MDL Method Detection Limit

ML Minimum Level (Dioxin)

NC Not Calculated

ND Not Detected at the reporting limit (or MDL or EDL if shown)

PQL Practical Quantitation Limit

QC Quality Control

RER Relative Error Ratio (Radiochemistry)

RL Reporting Limit or Requested Limit (Radiochemistry)

RPD Relative Percent Difference a measure of the relative difference between two points

TEF Toxicity Equivalent Factor (Dioxin)

TEQ Toxicity Equivalent Quotient (Dioxin)

Eurofins TestAmerica Knoxville

12102019Page 4 of 21342

Method SummaryJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

Method Method Description LaboratoryProtocol

SW8468321A HFPO-DA TAL DEN

SW8468321A PFOA and PFOS TAL DEN

TAL SOPNone Leaching Procedure TAL DEN

TAL SOPNone Leaching Procedure for Condensate TAL DEN

TAL SOPNone Leaching Procedure for XAD TAL DEN

Protocol References

SW846 = Test Methods For Evaluating Solid Waste PhysicalChemical Methods Third Edition November 1986 And Its Updates

TAL SOP = TestAmerica Laboratories Standard Operating Procedure

Laboratory References

TAL DEN = Eurofins TestAmerica Denver 4955 Yarrow Street Arvada CO 80002 TEL (303)736-0100

Eurofins TestAmerica Knoxville

12102019Page 5 of 21343

Sample SummaryJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

Lab Sample ID Client Sample ID ReceivedCollectedMatrix Asset ID

140-17458-1 G-25772578 DIV VEN STACK R1 M0010 FH Air 112219 0000 112519 0800

140-17458-2 G-257925802582 DIV VEN STACK R1 M0010

BH

Air 112219 0000 112519 0800

140-17458-3 G-2581 DIV VEN STACK R1 M0010 IMPINGERS

12amp3 COND

Air 112219 0000 112519 0800

140-17458-4 G-2583 DIV VEN STACK R1 M0010

BREAKTHROUGH XAD-2 RESIN TUBE

Air 112219 0000 112519 0800

140-17458-5 G-25842585 DIV VEN STACK R2 M0010 FH Air 112219 0000 112519 0800

140-17458-6 G-258625872589 DIV VEN STACK R2 M0010

BH

Air 112219 0000 112519 0800

140-17458-7 G-2588 DIV VEN STACK R2 M0010 IMPINGERS

12amp3 COND

Air 112219 0000 112519 0800

140-17458-8 G-2590 DIV VEN STACK R2 M0010

BREAKTHROUGH XAD-2 RESIN TUBE

Air 112219 0000 112519 0800

Eurofins TestAmerica Knoxville

12102019Page 6 of 21344

Job Narrative140-17458-1

Sample Receipt

The samples were received on November 25 2019 at 800 AM in good condition and properly preserved The temperature of the cooler at receipt was 16ordm C

Quality Control and Data Interpretation

Unless otherwise noted all holding times and QC criteria were met and the test results shown in this report meet all applicable NELAC requirements

Method 0010Method 3542 Sampling Train Preparation

Train fractions were extracted and prepared for analysis in TestAmericarsquos Knoxville laboratory Extracts and condensate samples were forwarded to the Denver laboratory for HFPO-DA analysis All results are reported in ldquoTotal ugrdquo per sample

LCMS

Method 8321A The following samples were inadvertently spiked with a native solution of HFPO-DA rather than the isotope dilution

internal standard prior to extraction in the Knoxville Laboratory

middot DIV VEN Stack R1 FHmiddot DIV VEN Stack R1 BHmiddot DIV VEN R1 Breakthrough middot DIV VEN Stack R2 FHmiddot DIV VEN Stack R2 BHmiddot DIV VEN R2 Breakthrough

As a result these samples received a relatively small fortification of the native HFPO-DA and no labeled IDA as typically applied Upon

discovery of the processing issue the IDAs were post spiked onto the extracted samples which were then re-analyzed to acquire the

Total HFPO-DA content in the samples The spiked amount of native HFPO-DA was subsequently subtracted from the Total HFPO-DA

and the corrected concentration is reported in with the data set below

Please note that under these conditions the affected samples are not corrected for extraction losses through isotope dilution internal

standard data reduction However the HFPO-DA concentrations are accurate and useful for their intended purpose

Method 8321A The laboratory control sample (LCS) and or laboratory control sample duplicate (LCSD) for preparation batch 280-478940 and analytical batch 280-479928 recovered outside control limits for the following analytes HFPO These analytes were biased high in the LCS and were not detected in the associated samples therefore the data have been reported

No additional analytical or quality issues were noted other than those described above or in the DefinitionsGlossary page

Organic Prep

No analytical or quality issues were noted other than those described in the DefinitionsGlossary page

12102019Page 7 of 21345

Chemours VES Carbon Bed Outlet Test Analytical Report TestAmerica Job No 140-17458-1

December 10 2019

OUsers FoldersAdkinsCProject DocumentsSpecial ReportingChemours Corrected ValuesFayettevilleChemours Corrected Results HFPO-DA_DIV VEN Stack_12102019docx Created on 01302018 Last edited on 12102019 302 PM

The following samples were inadvertently spiked with a native solution of HFPO-DA prior to extraction

in the Knoxville laboratory

DIV VEN Stack R1 FH

DIV VEN Stack R1 BH

DIV VEN R1 Breakthrough

DIV VEN Stack R2 FH

DIV VEN Stack R2 BH

DIV VEN R2 Breakthrough

The HFPO-DA results presented below have been corrected to remove the laboratory contribution from the final result

TALS ID Client ID HFPO-DA Result (ugsample)

HFPO-DA Added in the lab

(ugsample)

HFPO-DA Corrected Result

(ugsample)

140-17458-1 DIV VEN Stack R1 FH

986 2 786

140-17458-2 DIV VEN Stack R1 BH

213 7 143

140-17458-4 DIV VEN R1 Breakthrough

230 4 ND

140-17458-5 DIV VEN Stack R2 FH

658 25 408

140-17458-6 DIV VEN Stack R2 BH

363 65 298

140-17458-8 DIV VEN R2 Breakthrough

219 4 ND

12102019Page 8 of 21346

QC Association SummaryJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

LCMS

Analysis Batch 464589

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321ADLCK 280-46458913 Lab Control Sample TotalNA

Prep Batch 478940

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air None140-17458-1 G-25772578 DIV VEN STACK R1 M0010 FH TotalNA

Air None140-17458-5 G-25842585 DIV VEN STACK R2 M0010 FH TotalNA

Air NoneMB 280-47894014-A Method Blank TotalNA

Air NoneMB 280-4789401-A Method Blank TotalNA

Air NoneLCS 280-4789402-A Lab Control Sample TotalNA

Air NoneLCSD 280-4789403-A Lab Control Sample Dup TotalNA

Prep Batch 478993

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air None140-17458-3 G-2581 DIV VEN STACK R1 M0010 IMPINGERS 12amp3 CONDTotalNA

Air None140-17458-7 G-2588 DIV VEN STACK R2 M0010 IMPINGERS 12amp3 CONDTotalNA

Air NoneMB 280-47899314-A Method Blank TotalNA

Air NoneMB 280-4789931-A Method Blank TotalNA

Air NoneLCS 280-4789932-A Lab Control Sample TotalNA

Air NoneLCSD 280-4789933-A Lab Control Sample Dup TotalNA

Prep Batch 479245

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air None140-17458-2 G-257925802582 DIV VEN STACK R1 M0010 BHTotalNA

Air None140-17458-4 G-2583 DIV VEN STACK R1 M0010 BREAKTHROUGH XAD-2 RESIN TUBETotalNA

Air None140-17458-6 G-258625872589 DIV VEN STACK R2 M0010 BHTotalNA

Air None140-17458-8 G-2590 DIV VEN STACK R2 M0010 BREAKTHROUGH XAD-2 RESIN TUBETotalNA

Air NoneMB 280-4792451-A Method Blank TotalNA

Air NoneLCS 280-4792452-A Lab Control Sample TotalNA

Air NoneLCSD 280-4792453-A Lab Control Sample Dup TotalNA

Analysis Batch 479814

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321A 478993140-17458-3 G-2581 DIV VEN STACK R1 M0010 IMPINGERS 12amp3 CONDTotalNA

Air 8321A 478993140-17458-7 G-2588 DIV VEN STACK R2 M0010 IMPINGERS 12amp3 CONDTotalNA

Air 8321A 478993MB 280-47899314-A Method Blank TotalNA

Air 8321A 478993MB 280-4789931-A Method Blank TotalNA

Air 8321A 478993LCS 280-4789932-A Lab Control Sample TotalNA

Air 8321A 478993LCSD 280-4789933-A Lab Control Sample Dup TotalNA

Analysis Batch 479928

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321A 478940140-17458-1 G-25772578 DIV VEN STACK R1 M0010 FH TotalNA

Air 8321A 478940140-17458-5 G-25842585 DIV VEN STACK R2 M0010 FH TotalNA

Air 8321A 478940MB 280-47894014-A Method Blank TotalNA

Air 8321A 478940MB 280-4789401-A Method Blank TotalNA

Air 8321A 478940LCS 280-4789402-A Lab Control Sample TotalNA

Air 8321A 478940LCSD 280-4789403-A Lab Control Sample Dup TotalNA

Analysis Batch 479929

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321A 479245140-17458-2 G-257925802582 DIV VEN STACK R1 M0010 BHTotalNA

Eurofins TestAmerica Knoxville

12102019Page 9 of 21347

QC Association SummaryJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

LCMS (Continued)

Analysis Batch 479929 (Continued)

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321A 479245140-17458-4 G-2583 DIV VEN STACK R1 M0010 BREAKTHROUGH XAD-2 RESIN TUBETotalNA

Air 8321A 479245140-17458-6 G-258625872589 DIV VEN STACK R2 M0010 BHTotalNA

Air 8321A 479245140-17458-8 G-2590 DIV VEN STACK R2 M0010 BREAKTHROUGH XAD-2 RESIN TUBETotalNA

Air 8321A 479245MB 280-4792451-A Method Blank TotalNA

Air 8321A 479245LCS 280-4792452-A Lab Control Sample TotalNA

Air 8321A 479245LCSD 280-4792453-A Lab Control Sample Dup TotalNA

Eurofins TestAmerica Knoxville

12102019Page 10 of 21348

Client Sample ResultsJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

Lab Sample ID 140-17458-1Client Sample ID G-25772578 DIV VEN STACK R1 M0010 FHMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Air Train

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 986 B 0100 00108 ugSample 112719 0804 120819 0915 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 133 50 - 200 112719 0804 120819 0915 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Lab Sample ID 140-17458-2Client Sample ID G-257925802582 DIV VEN STACK R1 M0010 BH

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Air Train

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 213 B 0350 00700 ugSample 120219 1125 120819 0955 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 116 50 - 200 120219 1125 120819 0955 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Lab Sample ID 140-17458-3Client Sample ID G-2581 DIV VEN STACK R1 M0010 IMPINGERS 12amp3 COND

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Air Train

Method 8321A - HFPO-DARL MDL

HFPO-DA 0145 J 0212 00108 ugSample 112719 1236 120619 1241 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 116 50 - 200 112719 1236 120619 1241 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Lab Sample ID 140-17458-4Client Sample ID G-2583 DIV VEN STACK R1 M0010 BREAKTHROUGH XAD-2 RESIN TUBE

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Air Train

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 230 B 0200 00400 ugSample 120219 1125 120819 0958 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 126 50 - 200 120219 1125 120819 0958 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Eurofins TestAmerica Knoxville

12102019Page 11 of 21349

Client Sample ResultsJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

Lab Sample ID 140-17458-5Client Sample ID G-25842585 DIV VEN STACK R2 M0010 FHMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Air Train

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 658 B 0125 00135 ugSample 112719 0804 120819 0919 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 136 50 - 200 112719 0804 120819 0919 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Lab Sample ID 140-17458-6Client Sample ID G-258625872589 DIV VEN STACK R2 M0010 BH

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Air Train

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 363 B 0325 00650 ugSample 120219 1125 120819 1001 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 100 50 - 200 120219 1125 120819 1001 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Lab Sample ID 140-17458-7Client Sample ID G-2588 DIV VEN STACK R2 M0010 IMPINGERS 12amp3 COND

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Air Train

Method 8321A - HFPO-DARL MDL

HFPO-DA ND 0196 000999 ugSample 112719 1236 120619 1244 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 121 50 - 200 112719 1236 120619 1244 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Lab Sample ID 140-17458-8Client Sample ID G-2590 DIV VEN STACK R2 M0010 BREAKTHROUGH XAD-2 RESIN TUBE

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Air Train

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 219 B 0200 00400 ugSample 120219 1125 120819 1004 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 109 50 - 200 120219 1125 120819 1004 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Eurofins TestAmerica Knoxville

12102019Page 12 of 21350

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17458-1ProjectSite VEN Stack - M0010

Method 8321A - HFPO-DAPrep None

000250HFPO-DA ugSample

Analyte UnitsMDLRL

000128

Method 8321A - PFOA and PFOSPrep None

00250HFPO-DA ugSample

Analyte UnitsMDLRL

000270

0100HFPO-DA ugSample00200

Eurofins TestAmerica Knoxville

12102019Page 13 of 21351

ANALYTICAL REPORTJob Number 140-17461-1

Job Description VEN Stack - MM-18

Contract Number LBIO-67048

ForChemours Company FC LLC The

co AECOMSabre Building Suite 300

4051 Ogletown RoadNewark DE 19713

Attention Michael Aucoin

_____________________________________________

Approved for releaseCourtney M AdkinsProject Manager II12232019 300 PM

Courtney M Adkins Project Manager II5815 Middlebrook Pike Knoxville TN 37921

(865)291-3000 courtneyadkinstestamericainccom

12232019

This report may not be reproduced except in full and with written approval from the laboratory For questions please contact the Project Manager atthe e-mail address or telephone number listed on this page

The test results in this report relate only to the samples as received by the laboratory and will meet all requirements of the methodology with anyexceptions noted This report shall not be reproduced except in full without the express written approval of the laboratory All questions should bedirected to the Eurofins TestAmerica Project Manager

This report has been electronically signed and authorized by the signatory Electronic signature is intended to be the legally binding equivalent of atraditionally handwritten signature

Eurofins TestAmerica Knoxville

5815 Middlebrook Pike Knoxville TN 37921

Tel (865) 291-3000 Fax (865) 584-4315 wwwtestamericainccom

12232019Page 1 of 89452

Table of ContentsCover Title Page 1

Data Summaries 5

Definitions 5

Method Summary 6

Sample Summary 7

Case Narrative 8

QC Association 10

Client Sample Results 14

Default Detection Limits 43

Surrogate Summary 45

QC Sample Results 46

Chronicle 54

Certification Summary 63

Manual Integration Summary 64

Organic Sample Data 77

GCMS VOA 77

Method 8260B 77Method 8260B QC Summary 78Method 8260B Sample Data 93Standards Data 287

Method 8260B ICAL Data 287Method 8260B CCAL Data 389

Raw QC Data 437Method 8260B Tune Data 437Method 8260B Blank Data 453Method 8260B LCSLCSD Data 461

12232019Page 2 of 89453

Table of ContentsMethod 8260B MSMSD Data 474

Method 8260B Run Logs 482Method 8260B Prep Data 495

HPLCIC 498

Method 9056 498Method 9056 QC Summary 499Method 9056 Sample Data 502Standards Data 538

Method 9056 ICAL Data 538Method 9056 CCAL Data 565

Raw QC Data 612Method 9056 Blank Data 612Method 9056 LCSLCSD Data 638Method 9056 MSMSD Data 644

Method 9056 Run Logs 650Method 9056 Prep Data 664

Method 9056A Total Halogens 667Method 9056A Total Halogens QC Summary 668Method 9056A Total Halogens Sample Data 676Standards Data 715

Method 9056A Total Halogens ICAL Data 715Method 9056A Total Halogens CCAL Data 740

Raw QC Data 781Method 9056A Total Halogens Blank Data 781Method 9056A Total Halogens LCSLCSD Data 817Method 9056A Total Halogens MSMSD Data 831

12232019Page 3 of 89454

Table of ContentsMethod 9056A Total Halogens Run Logs 839Method 9056A Total Halogens Prep Data 855

Inorganic Sample Data 864

General Chemistry Data 864

Gen Chem Cover Page 865

Gen Chem Sample Data 866

Gen Chem QC Data 878Gen Chem ICVCCV 878Gen Chem Duplicates 879

Gen Chem MDL 880

Gen Chem Analysis Run Log 881

Gen Chem Prep Data 882

Gen Chem Raw Data 884

Shipping and Receiving Documents 886

Client Chain of Custody 887

12232019Page 4 of 89455

DefinitionsGlossaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Qualifiers

GCMS VOAQualifier Description

LCS or LCSD is outside acceptance limits

Qualifier

H Sample was prepped or analyzed beyond the specified holding time

GCMS VOA TICsQualifier Description

H Sample was prepped or analyzed beyond the specified holding time

Qualifier

J Indicates an Estimated Value for TICs

N Presumptive evidence of material

T Result is a tentatively identified compound (TIC) and an estimated value

HPLCICQualifier Description

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

Qualifier

General ChemistryQualifier Description

HF Field parameter with a holding time of 15 minutes Test performed by laboratory at clients request

Qualifier

GlossaryThese commonly used abbreviations may or may not be present in this report

curren Listed under the D column to designate that the result is reported on a dry weight basis

Abbreviation

R Percent Recovery

CFL Contains Free Liquid

CNF Contains No Free Liquid

DER Duplicate Error Ratio (normalized absolute difference)

Dil Fac Dilution Factor

DL Detection Limit (DoDDOE)

DL RA RE IN Indicates a Dilution Re-analysis Re-extraction or additional Initial metalsanion analysis of the sample

DLC Decision Level Concentration (Radiochemistry)

EDL Estimated Detection Limit (Dioxin)

LOD Limit of Detection (DoDDOE)

LOQ Limit of Quantitation (DoDDOE)

MDA Minimum Detectable Activity (Radiochemistry)

MDC Minimum Detectable Concentration (Radiochemistry)

MDL Method Detection Limit

ML Minimum Level (Dioxin)

NC Not Calculated

ND Not Detected at the reporting limit (or MDL or EDL if shown)

PQL Practical Quantitation Limit

QC Quality Control

RER Relative Error Ratio (Radiochemistry)

RL Reporting Limit or Requested Limit (Radiochemistry)

RPD Relative Percent Difference a measure of the relative difference between two points

TEF Toxicity Equivalent Factor (Dioxin)

TEQ Toxicity Equivalent Quotient (Dioxin)

Eurofins TestAmerica Knoxville

12232019Page 5 of 89456

Method SummaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Method Method Description LaboratoryProtocol

SW8468260B Volatile Organic Compounds (GCMS) TAL KNX

SW8469056 Anions Ion Chromatography TAL KNX

SW8469041A pH TAL KNX

SW8465050 Bomb Preparation Method for Solid Waste TAL KNX

NoneMeOH Prep Methanol Impinger Preparation TAL KNX

Protocol References

None = None

SW846 = Test Methods For Evaluating Solid Waste PhysicalChemical Methods Third Edition November 1986 And Its Updates

Laboratory References

TAL KNX = Eurofins TestAmerica Knoxville 5815 Middlebrook Pike Knoxville TN 37921 TEL (865)291-3000

Eurofins TestAmerica Knoxville

12232019Page 6 of 89457

Sample SummaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID Client Sample ID ReceivedCollectedMatrix Asset ID

140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 Air 112219 0000 112519 0800

140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 Air 112219 0000 112519 0800

140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 Air 112219 0000 112519 0800

140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 Air 112219 0000 112519 0800

140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 Air 112219 0000 112519 0800

140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 Air 112219 0000 112519 0800

140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 Air 112219 0000 112519 0800

140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 Air 112219 0000 112519 0800

140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 Air 112219 0000 112519 0800

140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 Air 112219 0000 112519 0800

140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 Air 112219 0000 112519 0800

140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 Air 112219 0000 112519 0800

Eurofins TestAmerica Knoxville

12232019Page 7 of 89458

Job Narrative140-17461-1

Sample Receipt

The samples were received on November 25 2019 at 800 AM in good condition and properly preserved The temperature of the cooler at receipt was 16ordm C

GCMS VOA

Impinger Sample Preparation and Analysis Impinger samples were analyzed for the volatile organic target analytes by purge and trap GCMS using Eurofins TestAmerica Knoxville standard operating procedure KNOX-MS-0015 based on the following method

middot SW-846 8260B ldquoVolatile Organic Compounds by Gas Chromatography Mass Spectrometry (GCMS)rdquo

Each sample is prepared by adding a known amount of sample to the purge water in a purge and trap vessel and spiking with internal standards surrogates and matrix spike analytes (as needed) Volatile compounds are introduced into the gas chromatograph by the purge and trap method The components are separated using the chromatograph and detected using a mass spectrometer which provides both qualitative and quantitative information

Impinger sample results were calculated using the following equation

Concentration μgsample = (C times DF times W times Vt) (Va)WhereC = On-column concentration μgLDF = Dilution factorW = Volume of water purged LVt = Methanol extract final volume μL Va = Volume of extract analyzed microL

Method 8260B The LCS (LCS 140-357061-A) for analytical batch 140-35903 recovered below marginal exceedance limits for Trichlorofluoromethane This is an ongoing instrument issue with LCS recoveries for this analyte The project manager approved moving forward with analysis for the current job

Method 8260B The following samples were analyzed outside of analytical holding time due to ongoing instrumentation problems Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 (140-17461-9) Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 (140-17461-10) Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 (140-17461-11) and Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 (140-17461-12)

No additional analytical or quality issues were noted other than those described above or in the DefinitionsGlossary page

Total Halogens The samples were prepared for total fluorine chlorine bromine andor iodine using SOP number KNOX-WC-0016 (based on ASTM Method E442 and SW-846 Method 5050) The sample is oxidized by combustion in an oxygen flask at atmospheric pressure or a bomb containing oxygen under pressure The liberated halogen compounds are absorbed primarily as halides in a sodium carbonatesodium bicarbonate buffer solution The combustion products are collected by repeated rinsing of the combustion apparatus and analyzed by ion chromatography in accordance with SOP KNOX-WC-0005 (based on SW-846 Method 9056) The results are calculated using the following equation

C = [(Ccom times Vcom) W] times 1000 gKg

WhereC = Concentration of analyte in the sample mgKgCcom = Concentration of analyte in the combustate mgLVcom = Total volume of combustate LW = Weight of sample combusted g

Anions in Impinger Solutions Anions are is determined in accordance to SOP KNOX-WC-0005 (based on methods 3000A and 9056) The samples were diluted a minimum of 120 in ion chromatography solvent buffer solution to reduce the methanol concentration before injection Buffer concentrate was added until the pH was 10 Samples are diluted with ion chromatography eluate solution to bring the concentrations within the calibration range when necessary Higher dilutions are applied as necessary

An aliquot of prepared sample is introduced into the ion chromatograph Anions are identified based on their retention times as compared to those of known standards Quantification is accomplished by measuring the peak response and comparing it to a calibration curve generated from known standards

12232019Page 8 of 89459

The pH of all samples were tested with pH paper QC consisted of initial CCV and LCS which also serve as initial calibration duplicate analysis for every 10 samples and closing CCV A certified thermometer was used to check the ambient temperature

12232019Page 9 of 89460

QC Association SummaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

GCMS VOA

Prep Batch 35706

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air MeOH Prep140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air MeOH Prep140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air MeOH Prep140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH Prep140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air MeOH Prep140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air MeOH Prep140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air MeOH Prep140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH PrepMB 140-357062-A Method Blank TotalNA

Air MeOH PrepLCS 140-357061-A Lab Control Sample TotalNA

Air MeOH Prep140-17461-8 MS Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17461-8 MSD Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Analysis Batch 35903

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8260B 35706140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 8260B 35706140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 8260B 35706140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 8260B 35706140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 8260B 35706140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 8260B 35706140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 8260B 35706140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 8260B 35706140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 8260B 35706140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 8260B 35706140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 8260B 35706140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 8260B 35706140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 8260B 35706MB 140-357062-A Method Blank TotalNA

Air 8260B 35706LCS 140-357061-A Lab Control Sample TotalNA

Air 8260B 35706LCS 140-357061-A Lab Control Sample TotalNA

Air 8260B 35706140-17461-8 MS Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 8260B 35706140-17461-8 MSD Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

HPLCIC

Prep Batch 35705

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH PrepMB 140-3570514-B Method Blank TotalNA

Air MeOH PrepLCS 140-3570515-B Lab Control Sample TotalNA

Air MeOH PrepLCSD 140-3570516-B Lab Control Sample Dup TotalNA

Prep Batch 35706

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air MeOH Prep140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Eurofins TestAmerica Knoxville

12232019Page 10 of 89461

QC Association SummaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

HPLCIC (Continued)

Prep Batch 35706 (Continued)

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air MeOH Prep140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH Prep140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air MeOH Prep140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air MeOH Prep140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air MeOH Prep140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH PrepMB 140-3570617-A Method Blank TotalNA

Air MeOH PrepLCS 140-3570618-A Lab Control Sample TotalNA

Air MeOH PrepLCSD 140-3570619-A Lab Control Sample Dup TotalNA

Air MeOH Prep140-17461-8 MS Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17461-8 MSD Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Prep Batch 35707

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH PrepMB 140-3570717-B Method Blank TotalNA

Air MeOH PrepLCS 140-3570718-B Lab Control Sample TotalNA

Air MeOH PrepLCSD 140-3570719-B Lab Control Sample Dup TotalNA

Prep Batch 35761

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 5050 35706140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 5050 35706140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 5050 35706140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 5050 35706140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 5050 35706140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 5050 35706140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 5050 35706140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 5050 35707MB 140-3570717-B Method Blank TotalNA

Air 5050 35707LCS 140-3570718-B Lab Control Sample TotalNA

Air 5050 35707LCSD 140-3570719-B Lab Control Sample Dup TotalNA

Prep Batch 35762

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 5050 35706140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 5050 35706140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 5050 35706140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 5050 35706140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 5050 35706140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 5050 35705MB 140-3570514-B Method Blank TotalNA

Air 5050 35705LCS 140-3570515-B Lab Control Sample TotalNA

Air 5050 35705LCSD 140-3570516-B Lab Control Sample Dup TotalNA

Air 5050 35706140-17461-8 MS Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 5050 35706140-17461-8 MSD Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Analysis Batch 36005

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35761140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9056 35761140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35761140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Eurofins TestAmerica Knoxville

12232019Page 11 of 89462

QC Association SummaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

HPLCIC (Continued)

Analysis Batch 36005 (Continued)

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35761140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9056 35761140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9056 35761140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9056 35761140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9056 35761MB 140-3570717-B Method Blank TotalNA

Air 9056 35761LCS 140-3570718-B Lab Control Sample TotalNA

Air 9056 35761LCSD 140-3570719-B Lab Control Sample Dup TotalNA

Analysis Batch 36121

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35762140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35762140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9056 35762140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9056 35762140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9056 35762140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9056 35762MB 140-3570514-B Method Blank TotalNA

Air 9056 35762LCS 140-3570515-B Lab Control Sample TotalNA

Air 9056 35762LCSD 140-3570516-B Lab Control Sample Dup TotalNA

Air 9056 35762140-17461-8 MS Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35762140-17461-8 MSD Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Analysis Batch 36210

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35706140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9056 35706140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35706140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9056 35706140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9056 35706140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9056 35706140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9056 35706140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9056 35706140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35706140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9056 35706140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9056 35706140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9056 35706140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9056 35706MB 140-3570617-A Method Blank TotalNA

Air 9056 35706LCS 140-3570618-A Lab Control Sample TotalNA

Air 9056 35706LCSD 140-3570619-A Lab Control Sample Dup TotalNA

Air 9056 35706140-17461-8 MS Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35706140-17461-8 MSD Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

General Chemistry

Analysis Batch 36086

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9041A140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9041A140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9041A140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9041A140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9041A140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9041A140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Eurofins TestAmerica Knoxville

12232019Page 12 of 89463

QC Association SummaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

General Chemistry (Continued)

Analysis Batch 36086 (Continued)

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9041A140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9041A140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9041A140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9041A140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9041A140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9041A140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9041ALCS 140-360862 Lab Control Sample TotalNA

Air 9041A140-17461-1 DU Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9041A140-17461-2 DU Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9041A140-17461-3 DU Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Eurofins TestAmerica Knoxville

12232019Page 13 of 89464

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-1Client Sample ID Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 426 562 ugSample 112919 1048 120619 2054 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

852 852 ugSample 112919 1048 120619 2054 111133-Pentafluorobutane ND

426 613 ugSample 112919 1048 120619 2054 1111-Trichloroethane ND

852 169 ugSample 112919 1048 120619 2054 1111-Trifluoro-22-dichloroethane ND

852 852 ugSample 112919 1048 120619 2054 1111-Trifluoroethane ND

426 818 ugSample 112919 1048 120619 2054 11122-Tetrachloroethane ND

852 477 ugSample 112919 1048 120619 2054 1112-Trichloro-122-trifluoroethane ND

852 852 ugSample 112919 1048 120619 2054 1112-trichloro-1-fluoroethane ND

426 443 ugSample 112919 1048 120619 2054 1112-Trichloroethane ND

852 426 ugSample 112919 1048 120619 2054 111-Dichloro-1-fluoroethane ND

852 852 ugSample 112919 1048 120619 2054 111-dichloro-22-difluoroethane ND

852 852 ugSample 112919 1048 120619 2054 111-dichloro-22-difluoroethene ND

426 511 ugSample 112919 1048 120619 2054 111-Dichloroethane ND

426 630 ugSample 112919 1048 120619 2054 111-Dichloroethene ND

426 460 ugSample 112919 1048 120619 2054 111-Dichloropropene ND

852 852 ugSample 112919 1048 120619 2054 111-Difluoroethene ND

852 852 ugSample 112919 1048 120619 2054 1122-trichloro-11-difluoroethane ND

426 136 ugSample 112919 1048 120619 2054 1123-Trichlorobenzene ND

426 106 ugSample 112919 1048 120619 2054 1123-Trichloropropane ND

426 143 ugSample 112919 1048 120619 2054 1124-Trichlorobenzene ND

426 886 ugSample 112919 1048 120619 2054 1124-Trimethylbenzene ND

852 150 ugSample 112919 1048 120619 2054 112-Dibromo-3-Chloropropane ND

426 562 ugSample 112919 1048 120619 2054 112-Dibromoethane (EDB) ND

852 852 ugSample 112919 1048 120619 2054 112-dichloro-11-difluoroethane ND

426 749 ugSample 112919 1048 120619 2054 112-Dichlorobenzene ND

426 715 ugSample 112919 1048 120619 2054 112-Dichloroethane ND

426 426 ugSample 112919 1048 120619 2054 112-Dichloropropane ND

426 886 ugSample 112919 1048 120619 2054 1135-Trimethylbenzene ND

426 732 ugSample 112919 1048 120619 2054 113-Dichlorobenzene ND

426 477 ugSample 112919 1048 120619 2054 113-Dichloropropane ND

426 852 ugSample 112919 1048 120619 2054 114-Dichlorobenzene ND

852 869 ugSample 112919 1048 120619 2054 11-Chloro-11-difluoroethane ND

852 852 ugSample 112919 1048 120619 2054 122-dichloro-11-difluoroethylmethyl

ether

ND

426 124 ugSample 112919 1048 120619 2054 122-Dichloropropane ND

170 273 ugSample 112919 1048 120619 2054 12-Butanone (MEK) ND

852 126 ugSample 112919 1048 120619 2054 12-chloro-111444-hexafluoro-2-but

ene

ND

852 852 ugSample 112919 1048 120619 2054 12-Chloro-111-Trifluoroethane ND

426 801 ugSample 112919 1048 120619 2054 12-Chlorotoluene ND

170 392 ugSample 112919 1048 120619 2054 12-Hexanone ND

372 372 ugSample 112919 1048 120619 2054 12-MTP as HFPO 820

426 886 ugSample 112919 1048 120619 2054 14-Chlorotoluene ND

426 114 ugSample 112919 1048 120619 2054 14-Isopropyltoluene ND

170 273 ugSample 112919 1048 120619 2054 14-Methyl-2-pentanone (MIBK) ND

170 101 ugSample 112919 1048 120619 2054 1Acetone ND

426 818 ugSample 112919 1048 120619 2054 1Benzene ND

426 596 ugSample 112919 1048 120619 2054 1Bromobenzene ND

Eurofins TestAmerica Knoxville

12232019Page 14 of 89465

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-1Client Sample ID Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromochloromethane ND 426 954 ugSample 112919 1048 120619 2054 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

426 732 ugSample 112919 1048 120619 2054 1Bromodichloromethane ND

426 129 ugSample 112919 1048 120619 2054 1Bromoform ND

852 494 ugSample 112919 1048 120619 2054 1Bromomethane ND

426 106 ugSample 112919 1048 120619 2054 1Carbon disulfide ND

426 562 ugSample 112919 1048 120619 2054 1Carbon tetrachloride ND

125 125 ugSample 112919 1048 120619 2054 1Carbonyl Difluoride ND

426 613 ugSample 112919 1048 120619 2054 1Chlorobenzene ND

426 920 ugSample 112919 1048 120619 2054 1Chlorodibromomethane ND

852 187 ugSample 112919 1048 120619 2054 1Chloroethane ND

426 494 ugSample 112919 1048 120619 2054 1Chloroform ND

852 354 ugSample 112919 1048 120619 2054 1Chloromethane ND

426 341 ugSample 112919 1048 120619 2054 1cis-12-Dichloroethene ND

426 732 ugSample 112919 1048 120619 2054 1cis-13-Dichloropropene ND

426 409 ugSample 112919 1048 120619 2054 1Dibromomethane ND

852 150 ugSample 112919 1048 120619 2054 1Dichlorodifluoromethane ND

426 698 ugSample 112919 1048 120619 2054 1Ethylbenzene ND

426 426 ugSample 112919 1048 120619 2054 1Heptafluoropropyl 1222-tetrafluoroethyl ether

111

426 112 ugSample 112919 1048 120619 2054 1Hexachlorobutadiene ND

409 409 ugSample 112919 1048 120619 2054 1HFPO dimer methyl ester as

HFPO-DA

ND

426 596 ugSample 112919 1048 120619 2054 1Isopropylbenzene ND

852 698 ugSample 112919 1048 120619 2054 1mp-Xylene ND

426 273 ugSample 112919 1048 120619 2054 1Methylene Chloride 687

426 204 ugSample 112919 1048 120619 2054 1Naphthalene ND

426 109 ugSample 112919 1048 120619 2054 1n-Butylbenzene ND

426 920 ugSample 112919 1048 120619 2054 1n-Propylbenzene ND

426 443 ugSample 112919 1048 120619 2054 1o-Xylene ND

426 835 ugSample 112919 1048 120619 2054 1sec-Butylbenzene ND

426 920 ugSample 112919 1048 120619 2054 1Styrene ND

426 749 ugSample 112919 1048 120619 2054 1tert-Butylbenzene ND

426 562 ugSample 112919 1048 120619 2054 1Tetrachloroethene ND

426 784 ugSample 112919 1048 120619 2054 1Toluene ND

426 443 ugSample 112919 1048 120619 2054 1trans-12-Dichloroethene ND

426 150 ugSample 112919 1048 120619 2054 1trans-13-Dichloropropene ND

426 307 ugSample 112919 1048 120619 2054 1Trichloroethene ND

852 818 ugSample 112919 1048 120619 2054 1Trichlorofluoromethane ND

852 204 ugSample 112919 1048 120619 2054 1Vinyl chloride ND

Butanoic acid heptafluoro- sodium

salt

437 T J N ugSample 113 2218-54-4 112919 1048 120619 2054 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2054112919 1048T JUnknown 489 ugSample 118

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1048 120619 2054 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 110 112919 1048 120619 2054 157 - 152

Eurofins TestAmerica Knoxville

12232019Page 15 of 89466

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-1Client Sample ID Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)

Dibromofluoromethane (Surr) 104 62 - 134 112919 1048 120619 2054 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Toluene-d8 (Surr) 97 112919 1048 120619 2054 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine ND 9080 4540 ugSample 112919 1048 121119 2121 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

3750 1700 ugSample 112919 1048 121719 1902 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-2Client Sample ID Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 461 608 ugSample 112919 1048 120619 2119 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

922 922 ugSample 112919 1048 120619 2119 111133-Pentafluorobutane ND

461 664 ugSample 112919 1048 120619 2119 1111-Trichloroethane ND

922 182 ugSample 112919 1048 120619 2119 1111-Trifluoro-22-dichloroethane ND

922 922 ugSample 112919 1048 120619 2119 1111-Trifluoroethane ND

461 885 ugSample 112919 1048 120619 2119 11122-Tetrachloroethane ND

922 516 ugSample 112919 1048 120619 2119 1112-Trichloro-122-trifluoroethane ND

922 922 ugSample 112919 1048 120619 2119 1112-trichloro-1-fluoroethane ND

461 479 ugSample 112919 1048 120619 2119 1112-Trichloroethane ND

922 461 ugSample 112919 1048 120619 2119 111-Dichloro-1-fluoroethane ND

922 922 ugSample 112919 1048 120619 2119 111-dichloro-22-difluoroethane ND

922 922 ugSample 112919 1048 120619 2119 111-dichloro-22-difluoroethene ND

461 553 ugSample 112919 1048 120619 2119 111-Dichloroethane ND

461 682 ugSample 112919 1048 120619 2119 111-Dichloroethene ND

461 498 ugSample 112919 1048 120619 2119 111-Dichloropropene ND

922 922 ugSample 112919 1048 120619 2119 111-Difluoroethene ND

922 922 ugSample 112919 1048 120619 2119 1122-trichloro-11-difluoroethane ND

461 147 ugSample 112919 1048 120619 2119 1123-Trichlorobenzene ND

461 114 ugSample 112919 1048 120619 2119 1123-Trichloropropane ND

461 155 ugSample 112919 1048 120619 2119 1124-Trichlorobenzene ND

461 959 ugSample 112919 1048 120619 2119 1124-Trimethylbenzene ND

922 162 ugSample 112919 1048 120619 2119 112-Dibromo-3-Chloropropane ND

461 608 ugSample 112919 1048 120619 2119 112-Dibromoethane (EDB) ND

922 922 ugSample 112919 1048 120619 2119 112-dichloro-11-difluoroethane ND

461 811 ugSample 112919 1048 120619 2119 112-Dichlorobenzene ND

461 774 ugSample 112919 1048 120619 2119 112-Dichloroethane ND

461 461 ugSample 112919 1048 120619 2119 112-Dichloropropane ND

Eurofins TestAmerica Knoxville

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-2Client Sample ID Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

135-Trimethylbenzene ND 461 959 ugSample 112919 1048 120619 2119 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

461 793 ugSample 112919 1048 120619 2119 113-Dichlorobenzene ND

461 516 ugSample 112919 1048 120619 2119 113-Dichloropropane ND

461 922 ugSample 112919 1048 120619 2119 114-Dichlorobenzene ND

922 940 ugSample 112919 1048 120619 2119 11-Chloro-11-difluoroethane ND

922 922 ugSample 112919 1048 120619 2119 122-dichloro-11-difluoroethylmethyl

ether

ND

461 135 ugSample 112919 1048 120619 2119 122-Dichloropropane ND

184 295 ugSample 112919 1048 120619 2119 12-Butanone (MEK) ND

922 136 ugSample 112919 1048 120619 2119 12-chloro-111444-hexafluoro-2-but

ene

ND

922 922 ugSample 112919 1048 120619 2119 12-Chloro-111-Trifluoroethane ND

461 866 ugSample 112919 1048 120619 2119 12-Chlorotoluene ND

184 424 ugSample 112919 1048 120619 2119 12-Hexanone ND

403 403 ugSample 112919 1048 120619 2119 12-MTP as HFPO 819

461 959 ugSample 112919 1048 120619 2119 14-Chlorotoluene ND

461 124 ugSample 112919 1048 120619 2119 14-Isopropyltoluene ND

184 295 ugSample 112919 1048 120619 2119 14-Methyl-2-pentanone (MIBK) ND

184 109 ugSample 112919 1048 120619 2119 1Acetone ND

461 885 ugSample 112919 1048 120619 2119 1Benzene ND

461 645 ugSample 112919 1048 120619 2119 1Bromobenzene ND

461 103 ugSample 112919 1048 120619 2119 1Bromochloromethane ND

461 793 ugSample 112919 1048 120619 2119 1Bromodichloromethane ND

461 140 ugSample 112919 1048 120619 2119 1Bromoform ND

922 535 ugSample 112919 1048 120619 2119 1Bromomethane ND

461 114 ugSample 112919 1048 120619 2119 1Carbon disulfide ND

461 608 ugSample 112919 1048 120619 2119 1Carbon tetrachloride ND

135 135 ugSample 112919 1048 120619 2119 1Carbonyl Difluoride ND

461 664 ugSample 112919 1048 120619 2119 1Chlorobenzene ND

461 995 ugSample 112919 1048 120619 2119 1Chlorodibromomethane ND

922 203 ugSample 112919 1048 120619 2119 1Chloroethane ND

461 535 ugSample 112919 1048 120619 2119 1Chloroform ND

922 383 ugSample 112919 1048 120619 2119 1Chloromethane ND

461 369 ugSample 112919 1048 120619 2119 1cis-12-Dichloroethene ND

461 793 ugSample 112919 1048 120619 2119 1cis-13-Dichloropropene ND

461 442 ugSample 112919 1048 120619 2119 1Dibromomethane ND

922 162 ugSample 112919 1048 120619 2119 1Dichlorodifluoromethane ND

461 756 ugSample 112919 1048 120619 2119 1Ethylbenzene ND

461 461 ugSample 112919 1048 120619 2119 1Heptafluoropropyl 1222-tetrafluoroethyl ether

161

461 122 ugSample 112919 1048 120619 2119 1Hexachlorobutadiene ND

442 442 ugSample 112919 1048 120619 2119 1HFPO dimer methyl ester as

HFPO-DA

ND

461 645 ugSample 112919 1048 120619 2119 1Isopropylbenzene ND

922 756 ugSample 112919 1048 120619 2119 1mp-Xylene ND

461 295 ugSample 112919 1048 120619 2119 1Methylene Chloride 568

461 221 ugSample 112919 1048 120619 2119 1Naphthalene ND

461 118 ugSample 112919 1048 120619 2119 1n-Butylbenzene ND

Eurofins TestAmerica Knoxville

12232019Page 17 of 89468

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-2Client Sample ID Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

n-Propylbenzene ND 461 995 ugSample 112919 1048 120619 2119 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

461 479 ugSample 112919 1048 120619 2119 1o-Xylene ND

461 903 ugSample 112919 1048 120619 2119 1sec-Butylbenzene ND

461 995 ugSample 112919 1048 120619 2119 1Styrene ND

461 811 ugSample 112919 1048 120619 2119 1tert-Butylbenzene ND

461 608 ugSample 112919 1048 120619 2119 1Tetrachloroethene ND

461 848 ugSample 112919 1048 120619 2119 1Toluene ND

461 479 ugSample 112919 1048 120619 2119 1trans-12-Dichloroethene ND

461 162 ugSample 112919 1048 120619 2119 1trans-13-Dichloropropene ND

461 332 ugSample 112919 1048 120619 2119 1Trichloroethene ND

922 885 ugSample 112919 1048 120619 2119 1Trichlorofluoromethane ND

922 221 ugSample 112919 1048 120619 2119 1Vinyl chloride ND

Unknown 561 T J ugSample 113 112919 1048 120619 2119 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2119112919 1048T JUnknown 1150 ugSample 118

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1048 120619 2119 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 112919 1048 120619 2119 157 - 152

Dibromofluoromethane (Surr) 104 112919 1048 120619 2119 162 - 134

Toluene-d8 (Surr) 96 112919 1048 120619 2119 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 27900 9830 4920 ugSample 112919 1048 121119 2142 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

4060 1840 ugSample 112919 1048 121719 2006 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-3Client Sample ID Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 858 113 ugSample 112919 1048 120619 2143 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

172 172 ugSample 112919 1048 120619 2143 111133-Pentafluorobutane ND

858 124 ugSample 112919 1048 120619 2143 1111-Trichloroethane ND

172 340 ugSample 112919 1048 120619 2143 1111-Trifluoro-22-dichloroethane ND

172 172 ugSample 112919 1048 120619 2143 1111-Trifluoroethane ND

858 165 ugSample 112919 1048 120619 2143 11122-Tetrachloroethane ND

172 0961 ugSample 112919 1048 120619 2143 1112-Trichloro-122-trifluoroethane ND

172 172 ugSample 112919 1048 120619 2143 1112-trichloro-1-fluoroethane ND

Eurofins TestAmerica Knoxville

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-3Client Sample ID Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

112-Trichloroethane ND 858 0892 ugSample 112919 1048 120619 2143 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

172 858 ugSample 112919 1048 120619 2143 111-Dichloro-1-fluoroethane ND

172 172 ugSample 112919 1048 120619 2143 111-dichloro-22-difluoroethane ND

172 172 ugSample 112919 1048 120619 2143 111-dichloro-22-difluoroethene ND

858 103 ugSample 112919 1048 120619 2143 111-Dichloroethane ND

858 127 ugSample 112919 1048 120619 2143 111-Dichloroethene ND

858 0926 ugSample 112919 1048 120619 2143 111-Dichloropropene ND

172 172 ugSample 112919 1048 120619 2143 111-Difluoroethene ND

172 172 ugSample 112919 1048 120619 2143 1122-trichloro-11-difluoroethane ND

858 274 ugSample 112919 1048 120619 2143 1123-Trichlorobenzene ND

858 213 ugSample 112919 1048 120619 2143 1123-Trichloropropane ND

858 288 ugSample 112919 1048 120619 2143 1124-Trichlorobenzene ND

858 178 ugSample 112919 1048 120619 2143 1124-Trimethylbenzene ND

172 302 ugSample 112919 1048 120619 2143 112-Dibromo-3-Chloropropane ND

858 113 ugSample 112919 1048 120619 2143 112-Dibromoethane (EDB) ND

172 172 ugSample 112919 1048 120619 2143 112-dichloro-11-difluoroethane ND

858 151 ugSample 112919 1048 120619 2143 112-Dichlorobenzene ND

858 144 ugSample 112919 1048 120619 2143 112-Dichloroethane ND

858 0858 ugSample 112919 1048 120619 2143 112-Dichloropropane ND

858 178 ugSample 112919 1048 120619 2143 1135-Trimethylbenzene ND

858 148 ugSample 112919 1048 120619 2143 113-Dichlorobenzene ND

858 0961 ugSample 112919 1048 120619 2143 113-Dichloropropane ND

858 172 ugSample 112919 1048 120619 2143 114-Dichlorobenzene ND

172 175 ugSample 112919 1048 120619 2143 11-Chloro-11-difluoroethane ND

172 172 ugSample 112919 1048 120619 2143 122-dichloro-11-difluoroethylmethyl

ether

ND

858 250 ugSample 112919 1048 120619 2143 122-Dichloropropane ND

343 549 ugSample 112919 1048 120619 2143 12-Butanone (MEK) ND

172 254 ugSample 112919 1048 120619 2143 12-chloro-111444-hexafluoro-2-but

ene

ND

172 172 ugSample 112919 1048 120619 2143 12-Chloro-111-Trifluoroethane ND

858 161 ugSample 112919 1048 120619 2143 12-Chlorotoluene ND

343 789 ugSample 112919 1048 120619 2143 12-Hexanone ND

749 749 ugSample 112919 1048 120619 2143 12-MTP as HFPO 604

858 178 ugSample 112919 1048 120619 2143 14-Chlorotoluene ND

858 230 ugSample 112919 1048 120619 2143 14-Isopropyltoluene ND

343 549 ugSample 112919 1048 120619 2143 14-Methyl-2-pentanone (MIBK) ND

343 202 ugSample 112919 1048 120619 2143 1Acetone ND

858 165 ugSample 112919 1048 120619 2143 1Benzene ND

858 120 ugSample 112919 1048 120619 2143 1Bromobenzene ND

858 192 ugSample 112919 1048 120619 2143 1Bromochloromethane ND

858 148 ugSample 112919 1048 120619 2143 1Bromodichloromethane ND

858 261 ugSample 112919 1048 120619 2143 1Bromoform ND

172 995 ugSample 112919 1048 120619 2143 1Bromomethane ND

858 213 ugSample 112919 1048 120619 2143 1Carbon disulfide ND

858 113 ugSample 112919 1048 120619 2143 1Carbon tetrachloride ND

251 251 ugSample 112919 1048 120619 2143 1Carbonyl Difluoride ND

858 124 ugSample 112919 1048 120619 2143 1Chlorobenzene ND

Eurofins TestAmerica Knoxville

12232019Page 19 of 89470

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-3Client Sample ID Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Chlorodibromomethane ND 858 185 ugSample 112919 1048 120619 2143 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

172 377 ugSample 112919 1048 120619 2143 1Chloroethane ND

858 0995 ugSample 112919 1048 120619 2143 1Chloroform ND

172 714 ugSample 112919 1048 120619 2143 1Chloromethane ND

858 0686 ugSample 112919 1048 120619 2143 1cis-12-Dichloroethene ND

858 148 ugSample 112919 1048 120619 2143 1cis-13-Dichloropropene ND

858 0823 ugSample 112919 1048 120619 2143 1Dibromomethane ND

172 302 ugSample 112919 1048 120619 2143 1Dichlorodifluoromethane ND

858 141 ugSample 112919 1048 120619 2143 1Ethylbenzene ND

858 858 ugSample 112919 1048 120619 2143 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

858 226 ugSample 112919 1048 120619 2143 1Hexachlorobutadiene ND

823 823 ugSample 112919 1048 120619 2143 1HFPO dimer methyl ester as

HFPO-DA

ND

858 120 ugSample 112919 1048 120619 2143 1Isopropylbenzene ND

172 141 ugSample 112919 1048 120619 2143 1mp-Xylene ND

858 549 ugSample 112919 1048 120619 2143 1Methylene Chloride ND

858 412 ugSample 112919 1048 120619 2143 1Naphthalene ND

858 220 ugSample 112919 1048 120619 2143 1n-Butylbenzene ND

858 185 ugSample 112919 1048 120619 2143 1n-Propylbenzene ND

858 0892 ugSample 112919 1048 120619 2143 1o-Xylene ND

858 168 ugSample 112919 1048 120619 2143 1sec-Butylbenzene ND

858 185 ugSample 112919 1048 120619 2143 1Styrene ND

858 151 ugSample 112919 1048 120619 2143 1tert-Butylbenzene ND

858 113 ugSample 112919 1048 120619 2143 1Tetrachloroethene ND

858 158 ugSample 112919 1048 120619 2143 1Toluene ND

858 0892 ugSample 112919 1048 120619 2143 1trans-12-Dichloroethene ND

858 302 ugSample 112919 1048 120619 2143 1trans-13-Dichloropropene ND

858 0618 ugSample 112919 1048 120619 2143 1Trichloroethene ND

172 165 ugSample 112919 1048 120619 2143 1Trichlorofluoromethane ND

172 412 ugSample 112919 1048 120619 2143 1Vinyl chloride ND

Unknown 201 T J ugSample 113 112919 1048 120619 2143 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2143112919 1048T JUnknown 996 ugSample 118

1120619 2143112919 1048T J NCyclohexane 110-82-7248 ugSample 442

1120619 2143112919 1048T J N1-Dodecene 112-41-4105 ugSample 1207

1120619 2143112919 1048T J NCyclohexane hexyl- 4292-75-5129 ugSample 1269

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1048 120619 2143 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 112919 1048 120619 2143 157 - 152

Dibromofluoromethane (Surr) 102 112919 1048 120619 2143 162 - 134

Toluene-d8 (Surr) 97 112919 1048 120619 2143 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 9710 1830 915 ugSample 112919 1048 121119 2203 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Eurofins TestAmerica Knoxville

12232019Page 20 of 89471

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-3Client Sample ID Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 9056 - Anions Ion Chromatography (Continued)RL MDL

Hydrogen Fluoride ND 755 343 ugSample 112919 1048 121719 2029 20

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-4Client Sample ID Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 264 349 ugSample 112919 1048 120619 2208 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

529 529 ugSample 112919 1048 120619 2208 111133-Pentafluorobutane ND

264 381 ugSample 112919 1048 120619 2208 1111-Trichloroethane ND

529 105 ugSample 112919 1048 120619 2208 1111-Trifluoro-22-dichloroethane ND

529 529 ugSample 112919 1048 120619 2208 1111-Trifluoroethane ND

264 508 ugSample 112919 1048 120619 2208 11122-Tetrachloroethane ND

529 296 ugSample 112919 1048 120619 2208 1112-Trichloro-122-trifluoroethane ND

529 529 ugSample 112919 1048 120619 2208 1112-trichloro-1-fluoroethane ND

264 275 ugSample 112919 1048 120619 2208 1112-Trichloroethane ND

529 264 ugSample 112919 1048 120619 2208 111-Dichloro-1-fluoroethane ND

529 529 ugSample 112919 1048 120619 2208 111-dichloro-22-difluoroethane ND

529 529 ugSample 112919 1048 120619 2208 111-dichloro-22-difluoroethene ND

264 317 ugSample 112919 1048 120619 2208 111-Dichloroethane ND

264 391 ugSample 112919 1048 120619 2208 111-Dichloroethene ND

264 286 ugSample 112919 1048 120619 2208 111-Dichloropropene ND

529 529 ugSample 112919 1048 120619 2208 111-Difluoroethene ND

529 529 ugSample 112919 1048 120619 2208 1122-trichloro-11-difluoroethane ND

264 846 ugSample 112919 1048 120619 2208 1123-Trichlorobenzene ND

264 656 ugSample 112919 1048 120619 2208 1123-Trichloropropane ND

264 889 ugSample 112919 1048 120619 2208 1124-Trichlorobenzene ND

264 550 ugSample 112919 1048 120619 2208 1124-Trimethylbenzene ND

529 931 ugSample 112919 1048 120619 2208 112-Dibromo-3-Chloropropane ND

264 349 ugSample 112919 1048 120619 2208 112-Dibromoethane (EDB) ND

529 529 ugSample 112919 1048 120619 2208 112-dichloro-11-difluoroethane ND

264 465 ugSample 112919 1048 120619 2208 112-Dichlorobenzene ND

264 444 ugSample 112919 1048 120619 2208 112-Dichloroethane ND

264 264 ugSample 112919 1048 120619 2208 112-Dichloropropane ND

264 550 ugSample 112919 1048 120619 2208 1135-Trimethylbenzene ND

264 455 ugSample 112919 1048 120619 2208 113-Dichlorobenzene ND

264 296 ugSample 112919 1048 120619 2208 113-Dichloropropane ND

264 529 ugSample 112919 1048 120619 2208 114-Dichlorobenzene ND

529 539 ugSample 112919 1048 120619 2208 11-Chloro-11-difluoroethane ND

529 529 ugSample 112919 1048 120619 2208 122-dichloro-11-difluoroethylmethyl

ether

ND

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-4Client Sample ID Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

22-Dichloropropane ND 264 772 ugSample 112919 1048 120619 2208 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

106 169 ugSample 112919 1048 120619 2208 12-Butanone (MEK) ND

529 783 ugSample 112919 1048 120619 2208 12-chloro-111444-hexafluoro-2-but

ene

ND

529 529 ugSample 112919 1048 120619 2208 12-Chloro-111-Trifluoroethane ND

264 497 ugSample 112919 1048 120619 2208 12-Chlorotoluene ND

106 243 ugSample 112919 1048 120619 2208 12-Hexanone ND

231 231 ugSample 112919 1048 120619 2208 12-MTP as HFPO 636

264 550 ugSample 112919 1048 120619 2208 14-Chlorotoluene ND

264 709 ugSample 112919 1048 120619 2208 14-Isopropyltoluene ND

106 169 ugSample 112919 1048 120619 2208 14-Methyl-2-pentanone (MIBK) ND

106 624 ugSample 112919 1048 120619 2208 1Acetone ND

264 508 ugSample 112919 1048 120619 2208 1Benzene ND

264 370 ugSample 112919 1048 120619 2208 1Bromobenzene ND

264 592 ugSample 112919 1048 120619 2208 1Bromochloromethane ND

264 455 ugSample 112919 1048 120619 2208 1Bromodichloromethane ND

264 804 ugSample 112919 1048 120619 2208 1Bromoform ND

529 307 ugSample 112919 1048 120619 2208 1Bromomethane ND

264 656 ugSample 112919 1048 120619 2208 1Carbon disulfide ND

264 349 ugSample 112919 1048 120619 2208 1Carbon tetrachloride ND

777 777 ugSample 112919 1048 120619 2208 1Carbonyl Difluoride ND

264 381 ugSample 112919 1048 120619 2208 1Chlorobenzene ND

264 571 ugSample 112919 1048 120619 2208 1Chlorodibromomethane ND

529 116 ugSample 112919 1048 120619 2208 1Chloroethane ND

264 307 ugSample 112919 1048 120619 2208 1Chloroform ND

529 220 ugSample 112919 1048 120619 2208 1Chloromethane ND

264 212 ugSample 112919 1048 120619 2208 1cis-12-Dichloroethene ND

264 455 ugSample 112919 1048 120619 2208 1cis-13-Dichloropropene ND

264 254 ugSample 112919 1048 120619 2208 1Dibromomethane ND

529 931 ugSample 112919 1048 120619 2208 1Dichlorodifluoromethane ND

264 434 ugSample 112919 1048 120619 2208 1Ethylbenzene ND

264 264 ugSample 112919 1048 120619 2208 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

264 698 ugSample 112919 1048 120619 2208 1Hexachlorobutadiene ND

253 253 ugSample 112919 1048 120619 2208 1HFPO dimer methyl ester as

HFPO-DA

ND

264 370 ugSample 112919 1048 120619 2208 1Isopropylbenzene ND

529 434 ugSample 112919 1048 120619 2208 1mp-Xylene ND

264 169 ugSample 112919 1048 120619 2208 1Methylene Chloride ND

264 127 ugSample 112919 1048 120619 2208 1Naphthalene ND

264 677 ugSample 112919 1048 120619 2208 1n-Butylbenzene ND

264 571 ugSample 112919 1048 120619 2208 1n-Propylbenzene ND

264 275 ugSample 112919 1048 120619 2208 1o-Xylene ND

264 518 ugSample 112919 1048 120619 2208 1sec-Butylbenzene ND

264 571 ugSample 112919 1048 120619 2208 1Styrene ND

264 465 ugSample 112919 1048 120619 2208 1tert-Butylbenzene ND

264 349 ugSample 112919 1048 120619 2208 1Tetrachloroethene ND

264 487 ugSample 112919 1048 120619 2208 1Toluene ND

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12232019Page 22 of 89473

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-4Client Sample ID Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

trans-12-Dichloroethene ND 264 275 ugSample 112919 1048 120619 2208 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

264 931 ugSample 112919 1048 120619 2208 1trans-13-Dichloropropene ND

264 190 ugSample 112919 1048 120619 2208 1Trichloroethene ND

529 508 ugSample 112919 1048 120619 2208 1Trichlorofluoromethane ND

529 127 ugSample 112919 1048 120619 2208 1Vinyl chloride ND

Unknown 365 T J ugSample 113 112919 1048 120619 2208 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2208112919 1048T JUnknown 452 ugSample 118

1120619 2208112919 1048T J NCyclohexane 110-82-7419 ugSample 442

12-Dichloroethane-d4 (Surr) 120 70 - 160 112919 1048 120619 2208 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 110 112919 1048 120619 2208 157 - 152

Dibromofluoromethane (Surr) 104 112919 1048 120619 2208 162 - 134

Toluene-d8 (Surr) 96 112919 1048 120619 2208 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 22000 5640 2820 ugSample 112919 1048 121219 1510 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2330 1060 ugSample 112919 1048 121719 2051 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-5Client Sample ID Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 241 318 ugSample 112919 1048 120619 2232 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

482 482 ugSample 112919 1048 120619 2232 111133-Pentafluorobutane ND

241 347 ugSample 112919 1048 120619 2232 1111-Trichloroethane ND

482 954 ugSample 112919 1048 120619 2232 1111-Trifluoro-22-dichloroethane ND

482 482 ugSample 112919 1048 120619 2232 1111-Trifluoroethane ND

241 462 ugSample 112919 1048 120619 2232 11122-Tetrachloroethane ND

482 270 ugSample 112919 1048 120619 2232 1112-Trichloro-122-trifluoroethane ND

482 482 ugSample 112919 1048 120619 2232 1112-trichloro-1-fluoroethane ND

241 250 ugSample 112919 1048 120619 2232 1112-Trichloroethane ND

482 241 ugSample 112919 1048 120619 2232 111-Dichloro-1-fluoroethane ND

482 482 ugSample 112919 1048 120619 2232 111-dichloro-22-difluoroethane ND

482 482 ugSample 112919 1048 120619 2232 111-dichloro-22-difluoroethene ND

241 289 ugSample 112919 1048 120619 2232 111-Dichloroethane ND

241 356 ugSample 112919 1048 120619 2232 111-Dichloroethene ND

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-5Client Sample ID Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

11-Dichloropropene ND 241 260 ugSample 112919 1048 120619 2232 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

482 482 ugSample 112919 1048 120619 2232 111-Difluoroethene ND

482 482 ugSample 112919 1048 120619 2232 1122-trichloro-11-difluoroethane ND

241 771 ugSample 112919 1048 120619 2232 1123-Trichlorobenzene ND

241 597 ugSample 112919 1048 120619 2232 1123-Trichloropropane ND

241 809 ugSample 112919 1048 120619 2232 1124-Trichlorobenzene ND

241 501 ugSample 112919 1048 120619 2232 1124-Trimethylbenzene ND

482 848 ugSample 112919 1048 120619 2232 112-Dibromo-3-Chloropropane ND

241 318 ugSample 112919 1048 120619 2232 112-Dibromoethane (EDB) ND

482 482 ugSample 112919 1048 120619 2232 112-dichloro-11-difluoroethane ND

241 424 ugSample 112919 1048 120619 2232 112-Dichlorobenzene ND

241 405 ugSample 112919 1048 120619 2232 112-Dichloroethane ND

241 241 ugSample 112919 1048 120619 2232 112-Dichloropropane ND

241 501 ugSample 112919 1048 120619 2232 1135-Trimethylbenzene ND

241 414 ugSample 112919 1048 120619 2232 113-Dichlorobenzene ND

241 270 ugSample 112919 1048 120619 2232 113-Dichloropropane ND

241 482 ugSample 112919 1048 120619 2232 114-Dichlorobenzene ND

482 491 ugSample 112919 1048 120619 2232 11-Chloro-11-difluoroethane ND

482 482 ugSample 112919 1048 120619 2232 122-dichloro-11-difluoroethylmethyl

ether

ND

241 703 ugSample 112919 1048 120619 2232 122-Dichloropropane ND

963 154 ugSample 112919 1048 120619 2232 12-Butanone (MEK) ND

482 713 ugSample 112919 1048 120619 2232 12-chloro-111444-hexafluoro-2-but

ene

ND

482 482 ugSample 112919 1048 120619 2232 12-Chloro-111-Trifluoroethane ND

241 453 ugSample 112919 1048 120619 2232 12-Chlorotoluene ND

963 222 ugSample 112919 1048 120619 2232 12-Hexanone ND

210 210 ugSample 112919 1048 120619 2232 12-MTP as HFPO 490

241 501 ugSample 112919 1048 120619 2232 14-Chlorotoluene ND

241 645 ugSample 112919 1048 120619 2232 14-Isopropyltoluene ND

963 154 ugSample 112919 1048 120619 2232 14-Methyl-2-pentanone (MIBK) ND

963 568 ugSample 112919 1048 120619 2232 1Acetone ND

241 462 ugSample 112919 1048 120619 2232 1Benzene ND

241 337 ugSample 112919 1048 120619 2232 1Bromobenzene ND

241 540 ugSample 112919 1048 120619 2232 1Bromochloromethane ND

241 414 ugSample 112919 1048 120619 2232 1Bromodichloromethane ND

241 732 ugSample 112919 1048 120619 2232 1Bromoform ND

482 279 ugSample 112919 1048 120619 2232 1Bromomethane ND

241 597 ugSample 112919 1048 120619 2232 1Carbon disulfide ND

241 318 ugSample 112919 1048 120619 2232 1Carbon tetrachloride ND

706 706 ugSample 112919 1048 120619 2232 1Carbonyl Difluoride ND

241 347 ugSample 112919 1048 120619 2232 1Chlorobenzene ND

241 520 ugSample 112919 1048 120619 2232 1Chlorodibromomethane ND

482 106 ugSample 112919 1048 120619 2232 1Chloroethane ND

241 279 ugSample 112919 1048 120619 2232 1Chloroform ND

482 200 ugSample 112919 1048 120619 2232 1Chloromethane ND

241 193 ugSample 112919 1048 120619 2232 1cis-12-Dichloroethene ND

241 414 ugSample 112919 1048 120619 2232 1cis-13-Dichloropropene ND

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12232019Page 24 of 89475

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-5Client Sample ID Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Dibromomethane ND 241 231 ugSample 112919 1048 120619 2232 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

482 848 ugSample 112919 1048 120619 2232 1Dichlorodifluoromethane ND

241 395 ugSample 112919 1048 120619 2232 1Ethylbenzene ND

241 241 ugSample 112919 1048 120619 2232 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

241 636 ugSample 112919 1048 120619 2232 1Hexachlorobutadiene ND

231 231 ugSample 112919 1048 120619 2232 1HFPO dimer methyl ester as

HFPO-DA

ND

241 337 ugSample 112919 1048 120619 2232 1Isopropylbenzene ND

482 395 ugSample 112919 1048 120619 2232 1mp-Xylene ND

241 154 ugSample 112919 1048 120619 2232 1Methylene Chloride ND

241 116 ugSample 112919 1048 120619 2232 1Naphthalene ND

241 617 ugSample 112919 1048 120619 2232 1n-Butylbenzene ND

241 520 ugSample 112919 1048 120619 2232 1n-Propylbenzene ND

241 250 ugSample 112919 1048 120619 2232 1o-Xylene ND

241 472 ugSample 112919 1048 120619 2232 1sec-Butylbenzene ND

241 520 ugSample 112919 1048 120619 2232 1Styrene ND

241 424 ugSample 112919 1048 120619 2232 1tert-Butylbenzene ND

241 318 ugSample 112919 1048 120619 2232 1Tetrachloroethene ND

241 443 ugSample 112919 1048 120619 2232 1Toluene ND

241 250 ugSample 112919 1048 120619 2232 1trans-12-Dichloroethene ND

241 848 ugSample 112919 1048 120619 2232 1trans-13-Dichloropropene ND

241 173 ugSample 112919 1048 120619 2232 1Trichloroethene ND

482 462 ugSample 112919 1048 120619 2232 1Trichlorofluoromethane ND

482 116 ugSample 112919 1048 120619 2232 1Vinyl chloride ND

Unknown 223 T J ugSample 113 112919 1048 120619 2232 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2232112919 1048T J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-8104 ugSample 118

1120619 2232112919 1048T J NCyclohexane 110-82-7410 ugSample 442

1120619 2232112919 1048T JUnknown 309 ugSample 1317

12-Dichloroethane-d4 (Surr) 121 70 - 160 112919 1048 120619 2232 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1048 120619 2232 157 - 152

Dibromofluoromethane (Surr) 106 112919 1048 120619 2232 162 - 134

Toluene-d8 (Surr) 95 112919 1048 120619 2232 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 4360 J 5140 2570 ugSample 112919 1048 121119 2330 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2120 963 ugSample 112919 1048 121719 2114 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Eurofins TestAmerica Knoxville

12232019Page 25 of 89476

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-6Client Sample ID Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 313 413 ugSample 112919 1048 120619 2257 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

627 627 ugSample 112919 1048 120619 2257 111133-Pentafluorobutane ND

313 451 ugSample 112919 1048 120619 2257 1111-Trichloroethane ND

627 124 ugSample 112919 1048 120619 2257 1111-Trifluoro-22-dichloroethane ND

627 627 ugSample 112919 1048 120619 2257 1111-Trifluoroethane ND

313 601 ugSample 112919 1048 120619 2257 11122-Tetrachloroethane ND

627 351 ugSample 112919 1048 120619 2257 1112-Trichloro-122-trifluoroethane ND

627 627 ugSample 112919 1048 120619 2257 1112-trichloro-1-fluoroethane ND

313 326 ugSample 112919 1048 120619 2257 1112-Trichloroethane ND

627 313 ugSample 112919 1048 120619 2257 111-Dichloro-1-fluoroethane ND

627 627 ugSample 112919 1048 120619 2257 111-dichloro-22-difluoroethane ND

627 627 ugSample 112919 1048 120619 2257 111-dichloro-22-difluoroethene ND

313 376 ugSample 112919 1048 120619 2257 111-Dichloroethane ND

313 464 ugSample 112919 1048 120619 2257 111-Dichloroethene ND

313 338 ugSample 112919 1048 120619 2257 111-Dichloropropene ND

627 627 ugSample 112919 1048 120619 2257 111-Difluoroethene ND

627 627 ugSample 112919 1048 120619 2257 1122-trichloro-11-difluoroethane ND

313 100 ugSample 112919 1048 120619 2257 1123-Trichlorobenzene ND

313 777 ugSample 112919 1048 120619 2257 1123-Trichloropropane ND

313 105 ugSample 112919 1048 120619 2257 1124-Trichlorobenzene ND

313 652 ugSample 112919 1048 120619 2257 1124-Trimethylbenzene ND

627 110 ugSample 112919 1048 120619 2257 112-Dibromo-3-Chloropropane ND

313 413 ugSample 112919 1048 120619 2257 112-Dibromoethane (EDB) ND

627 627 ugSample 112919 1048 120619 2257 112-dichloro-11-difluoroethane ND

313 551 ugSample 112919 1048 120619 2257 112-Dichlorobenzene ND

313 526 ugSample 112919 1048 120619 2257 112-Dichloroethane ND

313 313 ugSample 112919 1048 120619 2257 112-Dichloropropane ND

313 652 ugSample 112919 1048 120619 2257 1135-Trimethylbenzene ND

313 539 ugSample 112919 1048 120619 2257 113-Dichlorobenzene ND

313 351 ugSample 112919 1048 120619 2257 113-Dichloropropane ND

313 627 ugSample 112919 1048 120619 2257 114-Dichlorobenzene ND

627 639 ugSample 112919 1048 120619 2257 11-Chloro-11-difluoroethane ND

627 627 ugSample 112919 1048 120619 2257 122-dichloro-11-difluoroethylmethyl

ether

ND

313 915 ugSample 112919 1048 120619 2257 122-Dichloropropane ND

125 200 ugSample 112919 1048 120619 2257 12-Butanone (MEK) ND

627 927 ugSample 112919 1048 120619 2257 12-chloro-111444-hexafluoro-2-but

ene

ND

627 627 ugSample 112919 1048 120619 2257 12-Chloro-111-Trifluoroethane ND

313 589 ugSample 112919 1048 120619 2257 12-Chlorotoluene ND

125 288 ugSample 112919 1048 120619 2257 12-Hexanone ND

273 273 ugSample 112919 1048 120619 2257 12-MTP as HFPO 672

313 652 ugSample 112919 1048 120619 2257 14-Chlorotoluene ND

313 840 ugSample 112919 1048 120619 2257 14-Isopropyltoluene ND

125 200 ugSample 112919 1048 120619 2257 14-Methyl-2-pentanone (MIBK) ND

125 739 ugSample 112919 1048 120619 2257 1Acetone ND

313 601 ugSample 112919 1048 120619 2257 1Benzene ND

313 439 ugSample 112919 1048 120619 2257 1Bromobenzene ND

Eurofins TestAmerica Knoxville

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ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-6Client Sample ID Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromochloromethane ND 313 702 ugSample 112919 1048 120619 2257 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

313 539 ugSample 112919 1048 120619 2257 1Bromodichloromethane ND

313 952 ugSample 112919 1048 120619 2257 1Bromoform ND

627 363 ugSample 112919 1048 120619 2257 1Bromomethane ND

313 777 ugSample 112919 1048 120619 2257 1Carbon disulfide ND

313 413 ugSample 112919 1048 120619 2257 1Carbon tetrachloride ND

916 916 ugSample 112919 1048 120619 2257 1Carbonyl Difluoride ND

313 451 ugSample 112919 1048 120619 2257 1Chlorobenzene ND

313 677 ugSample 112919 1048 120619 2257 1Chlorodibromomethane ND

627 138 ugSample 112919 1048 120619 2257 1Chloroethane ND

313 363 ugSample 112919 1048 120619 2257 1Chloroform ND

627 261 ugSample 112919 1048 120619 2257 1Chloromethane ND

313 251 ugSample 112919 1048 120619 2257 1cis-12-Dichloroethene ND

313 539 ugSample 112919 1048 120619 2257 1cis-13-Dichloropropene ND

313 301 ugSample 112919 1048 120619 2257 1Dibromomethane ND

627 110 ugSample 112919 1048 120619 2257 1Dichlorodifluoromethane ND

313 514 ugSample 112919 1048 120619 2257 1Ethylbenzene ND

313 313 ugSample 112919 1048 120619 2257 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

313 827 ugSample 112919 1048 120619 2257 1Hexachlorobutadiene ND

300 300 ugSample 112919 1048 120619 2257 1HFPO dimer methyl ester as

HFPO-DA

ND

313 439 ugSample 112919 1048 120619 2257 1Isopropylbenzene ND

627 514 ugSample 112919 1048 120619 2257 1mp-Xylene ND

313 200 ugSample 112919 1048 120619 2257 1Methylene Chloride ND

313 150 ugSample 112919 1048 120619 2257 1Naphthalene ND

313 802 ugSample 112919 1048 120619 2257 1n-Butylbenzene ND

313 677 ugSample 112919 1048 120619 2257 1n-Propylbenzene ND

313 326 ugSample 112919 1048 120619 2257 1o-Xylene ND

313 614 ugSample 112919 1048 120619 2257 1sec-Butylbenzene ND

313 677 ugSample 112919 1048 120619 2257 1Styrene ND

313 551 ugSample 112919 1048 120619 2257 1tert-Butylbenzene ND

313 413 ugSample 112919 1048 120619 2257 1Tetrachloroethene ND

313 576 ugSample 112919 1048 120619 2257 1Toluene ND

313 326 ugSample 112919 1048 120619 2257 1trans-12-Dichloroethene ND

313 110 ugSample 112919 1048 120619 2257 1trans-13-Dichloropropene ND

313 226 ugSample 112919 1048 120619 2257 1Trichloroethene ND

627 601 ugSample 112919 1048 120619 2257 1Trichlorofluoromethane ND

627 150 ugSample 112919 1048 120619 2257 1Vinyl chloride ND

Unknown 273 T J ugSample 113 112919 1048 120619 2257 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2257112919 1048T J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-8160 ugSample 118

12-Dichloroethane-d4 (Surr) 118 70 - 160 112919 1048 120619 2257 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 108 112919 1048 120619 2257 157 - 152

Eurofins TestAmerica Knoxville

12232019Page 27 of 89478

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-6Client Sample ID Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)

Dibromofluoromethane (Surr) 105 62 - 134 112919 1048 120619 2257 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Toluene-d8 (Surr) 97 112919 1048 120619 2257 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 3970 J 6680 3340 ugSample 112919 1048 121119 2350 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2760 1250 ugSample 112919 1048 121719 2137 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-7Client Sample ID Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 302 399 ugSample 112919 1048 120619 2321 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

604 604 ugSample 112919 1048 120619 2321 111133-Pentafluorobutane ND

302 435 ugSample 112919 1048 120619 2321 1111-Trichloroethane ND

604 120 ugSample 112919 1048 120619 2321 1111-Trifluoro-22-dichloroethane ND

604 604 ugSample 112919 1048 120619 2321 1111-Trifluoroethane ND

302 580 ugSample 112919 1048 120619 2321 11122-Tetrachloroethane ND

604 338 ugSample 112919 1048 120619 2321 1112-Trichloro-122-trifluoroethane ND

604 604 ugSample 112919 1048 120619 2321 1112-trichloro-1-fluoroethane ND

302 314 ugSample 112919 1048 120619 2321 1112-Trichloroethane ND

604 302 ugSample 112919 1048 120619 2321 111-Dichloro-1-fluoroethane ND

604 604 ugSample 112919 1048 120619 2321 111-dichloro-22-difluoroethane ND

604 604 ugSample 112919 1048 120619 2321 111-dichloro-22-difluoroethene ND

302 362 ugSample 112919 1048 120619 2321 111-Dichloroethane ND

302 447 ugSample 112919 1048 120619 2321 111-Dichloroethene ND

302 326 ugSample 112919 1048 120619 2321 111-Dichloropropene ND

604 604 ugSample 112919 1048 120619 2321 111-Difluoroethene ND

604 604 ugSample 112919 1048 120619 2321 1122-trichloro-11-difluoroethane ND

302 967 ugSample 112919 1048 120619 2321 1123-Trichlorobenzene ND

302 749 ugSample 112919 1048 120619 2321 1123-Trichloropropane ND

302 101 ugSample 112919 1048 120619 2321 1124-Trichlorobenzene ND

302 628 ugSample 112919 1048 120619 2321 1124-Trimethylbenzene ND

604 106 ugSample 112919 1048 120619 2321 112-Dibromo-3-Chloropropane ND

302 399 ugSample 112919 1048 120619 2321 112-Dibromoethane (EDB) ND

604 604 ugSample 112919 1048 120619 2321 112-dichloro-11-difluoroethane ND

302 532 ugSample 112919 1048 120619 2321 112-Dichlorobenzene ND

302 507 ugSample 112919 1048 120619 2321 112-Dichloroethane ND

302 302 ugSample 112919 1048 120619 2321 112-Dichloropropane ND

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-7Client Sample ID Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

135-Trimethylbenzene ND 302 628 ugSample 112919 1048 120619 2321 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

302 520 ugSample 112919 1048 120619 2321 113-Dichlorobenzene ND

302 338 ugSample 112919 1048 120619 2321 113-Dichloropropane ND

302 604 ugSample 112919 1048 120619 2321 114-Dichlorobenzene ND

604 616 ugSample 112919 1048 120619 2321 11-Chloro-11-difluoroethane ND

604 604 ugSample 112919 1048 120619 2321 122-dichloro-11-difluoroethylmethyl

ether

ND

302 882 ugSample 112919 1048 120619 2321 122-Dichloropropane ND

121 193 ugSample 112919 1048 120619 2321 12-Butanone (MEK) ND

604 894 ugSample 112919 1048 120619 2321 12-chloro-111444-hexafluoro-2-but

ene

ND

604 604 ugSample 112919 1048 120619 2321 12-Chloro-111-Trifluoroethane ND

302 568 ugSample 112919 1048 120619 2321 12-Chlorotoluene ND

121 278 ugSample 112919 1048 120619 2321 12-Hexanone ND

264 264 ugSample 112919 1048 120619 2321 12-MTP as HFPO 467

302 628 ugSample 112919 1048 120619 2321 14-Chlorotoluene ND

302 809 ugSample 112919 1048 120619 2321 14-Isopropyltoluene ND

121 193 ugSample 112919 1048 120619 2321 14-Methyl-2-pentanone (MIBK) ND

121 713 ugSample 112919 1048 120619 2321 1Acetone ND

302 580 ugSample 112919 1048 120619 2321 1Benzene ND

302 423 ugSample 112919 1048 120619 2321 1Bromobenzene ND

302 677 ugSample 112919 1048 120619 2321 1Bromochloromethane ND

302 520 ugSample 112919 1048 120619 2321 1Bromodichloromethane ND

302 918 ugSample 112919 1048 120619 2321 1Bromoform ND

604 350 ugSample 112919 1048 120619 2321 1Bromomethane ND

302 749 ugSample 112919 1048 120619 2321 1Carbon disulfide ND

302 399 ugSample 112919 1048 120619 2321 1Carbon tetrachloride ND

887 887 ugSample 112919 1048 120619 2321 1Carbonyl Difluoride ND

302 435 ugSample 112919 1048 120619 2321 1Chlorobenzene ND

302 652 ugSample 112919 1048 120619 2321 1Chlorodibromomethane ND

604 133 ugSample 112919 1048 120619 2321 1Chloroethane ND

302 350 ugSample 112919 1048 120619 2321 1Chloroform ND

604 251 ugSample 112919 1048 120619 2321 1Chloromethane ND

302 242 ugSample 112919 1048 120619 2321 1cis-12-Dichloroethene ND

302 520 ugSample 112919 1048 120619 2321 1cis-13-Dichloropropene ND

302 290 ugSample 112919 1048 120619 2321 1Dibromomethane ND

604 106 ugSample 112919 1048 120619 2321 1Dichlorodifluoromethane ND

302 495 ugSample 112919 1048 120619 2321 1Ethylbenzene ND

302 302 ugSample 112919 1048 120619 2321 1Heptafluoropropyl 1222-tetrafluoroethyl ether

550

302 797 ugSample 112919 1048 120619 2321 1Hexachlorobutadiene ND

290 290 ugSample 112919 1048 120619 2321 1HFPO dimer methyl ester as

HFPO-DA

ND

302 423 ugSample 112919 1048 120619 2321 1Isopropylbenzene ND

604 495 ugSample 112919 1048 120619 2321 1mp-Xylene ND

302 193 ugSample 112919 1048 120619 2321 1Methylene Chloride 116

302 145 ugSample 112919 1048 120619 2321 1Naphthalene ND

302 773 ugSample 112919 1048 120619 2321 1n-Butylbenzene ND

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12232019Page 29 of 89480

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-7Client Sample ID Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

n-Propylbenzene ND 302 652 ugSample 112919 1048 120619 2321 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

302 314 ugSample 112919 1048 120619 2321 1o-Xylene ND

302 592 ugSample 112919 1048 120619 2321 1sec-Butylbenzene ND

302 652 ugSample 112919 1048 120619 2321 1Styrene ND

302 532 ugSample 112919 1048 120619 2321 1tert-Butylbenzene ND

302 399 ugSample 112919 1048 120619 2321 1Tetrachloroethene ND

302 556 ugSample 112919 1048 120619 2321 1Toluene ND

302 314 ugSample 112919 1048 120619 2321 1trans-12-Dichloroethene ND

302 106 ugSample 112919 1048 120619 2321 1trans-13-Dichloropropene ND

302 217 ugSample 112919 1048 120619 2321 1Trichloroethene ND

604 580 ugSample 112919 1048 120619 2321 1Trichlorofluoromethane ND

604 145 ugSample 112919 1048 120619 2321 1Vinyl chloride ND

Unknown 275 T J ugSample 113 112919 1048 120619 2321 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2321112919 1048T JUnknown 2960 ugSample 118

1120619 2321112919 1048T JUnknown 572 ugSample 122

1120619 2321112919 1048T JUnknown 229 ugSample 212

1120619 2321112919 1048T JUnknown 104 ugSample 250

1120619 2321112919 1048T J NCyclohexane 110-82-7363 ugSample 442

12-Dichloroethane-d4 (Surr) 118 70 - 160 112919 1048 120619 2321 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1048 120619 2321 157 - 152

Dibromofluoromethane (Surr) 105 112919 1048 120619 2321 162 - 134

Toluene-d8 (Surr) 96 112919 1048 120619 2321 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 6490 6440 3220 ugSample 112919 1048 121219 0011 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2660 1210 ugSample 112919 1048 121819 0946 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-8Client Sample ID Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 296 390 ugSample 112919 1048 120619 2346 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

591 591 ugSample 112919 1048 120619 2346 111133-Pentafluorobutane ND

296 426 ugSample 112919 1048 120619 2346 1111-Trichloroethane ND

591 117 ugSample 112919 1048 120619 2346 1111-Trifluoro-22-dichloroethane ND

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-8Client Sample ID Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

111-Trifluoroethane ND 591 591 ugSample 112919 1048 120619 2346 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

296 567 ugSample 112919 1048 120619 2346 11122-Tetrachloroethane ND

591 331 ugSample 112919 1048 120619 2346 1112-Trichloro-122-trifluoroethane ND

591 591 ugSample 112919 1048 120619 2346 1112-trichloro-1-fluoroethane ND

296 307 ugSample 112919 1048 120619 2346 1112-Trichloroethane ND

591 296 ugSample 112919 1048 120619 2346 111-Dichloro-1-fluoroethane ND

591 591 ugSample 112919 1048 120619 2346 111-dichloro-22-difluoroethane ND

591 591 ugSample 112919 1048 120619 2346 111-dichloro-22-difluoroethene ND

296 355 ugSample 112919 1048 120619 2346 111-Dichloroethane ND

296 437 ugSample 112919 1048 120619 2346 111-Dichloroethene ND

296 319 ugSample 112919 1048 120619 2346 111-Dichloropropene ND

591 591 ugSample 112919 1048 120619 2346 111-Difluoroethene ND

591 591 ugSample 112919 1048 120619 2346 1122-trichloro-11-difluoroethane ND

296 946 ugSample 112919 1048 120619 2346 1123-Trichlorobenzene ND

296 733 ugSample 112919 1048 120619 2346 1123-Trichloropropane ND

296 993 ugSample 112919 1048 120619 2346 1124-Trichlorobenzene ND

296 615 ugSample 112919 1048 120619 2346 1124-Trimethylbenzene ND

591 104 ugSample 112919 1048 120619 2346 112-Dibromo-3-Chloropropane ND

296 390 ugSample 112919 1048 120619 2346 112-Dibromoethane (EDB) ND

591 591 ugSample 112919 1048 120619 2346 112-dichloro-11-difluoroethane ND

296 520 ugSample 112919 1048 120619 2346 112-Dichlorobenzene ND

296 496 ugSample 112919 1048 120619 2346 112-Dichloroethane ND

296 296 ugSample 112919 1048 120619 2346 112-Dichloropropane ND

296 615 ugSample 112919 1048 120619 2346 1135-Trimethylbenzene ND

296 508 ugSample 112919 1048 120619 2346 113-Dichlorobenzene ND

296 331 ugSample 112919 1048 120619 2346 113-Dichloropropane ND

296 591 ugSample 112919 1048 120619 2346 114-Dichlorobenzene ND

591 603 ugSample 112919 1048 120619 2346 11-Chloro-11-difluoroethane ND

591 591 ugSample 112919 1048 120619 2346 122-dichloro-11-difluoroethylmethyl

ether

ND

296 863 ugSample 112919 1048 120619 2346 122-Dichloropropane ND

118 189 ugSample 112919 1048 120619 2346 12-Butanone (MEK) ND

591 875 ugSample 112919 1048 120619 2346 12-chloro-111444-hexafluoro-2-but

ene

ND

591 591 ugSample 112919 1048 120619 2346 12-Chloro-111-Trifluoroethane ND

296 556 ugSample 112919 1048 120619 2346 12-Chlorotoluene ND

118 272 ugSample 112919 1048 120619 2346 12-Hexanone ND

259 259 ugSample 112919 1048 120619 2346 12-MTP as HFPO 610

296 615 ugSample 112919 1048 120619 2346 14-Chlorotoluene ND

296 792 ugSample 112919 1048 120619 2346 14-Isopropyltoluene ND

118 189 ugSample 112919 1048 120619 2346 14-Methyl-2-pentanone (MIBK) ND

118 697 ugSample 112919 1048 120619 2346 1Acetone ND

296 567 ugSample 112919 1048 120619 2346 1Benzene ND

296 414 ugSample 112919 1048 120619 2346 1Bromobenzene ND

296 662 ugSample 112919 1048 120619 2346 1Bromochloromethane ND

296 508 ugSample 112919 1048 120619 2346 1Bromodichloromethane ND

296 898 ugSample 112919 1048 120619 2346 1Bromoform ND

591 343 ugSample 112919 1048 120619 2346 1Bromomethane ND

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12232019Page 31 of 89482

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-8Client Sample ID Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Carbon disulfide ND 296 733 ugSample 112919 1048 120619 2346 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

296 390 ugSample 112919 1048 120619 2346 1Carbon tetrachloride ND

865 865 ugSample 112919 1048 120619 2346 1Carbonyl Difluoride ND

296 426 ugSample 112919 1048 120619 2346 1Chlorobenzene ND

296 638 ugSample 112919 1048 120619 2346 1Chlorodibromomethane ND

591 130 ugSample 112919 1048 120619 2346 1Chloroethane ND

296 343 ugSample 112919 1048 120619 2346 1Chloroform ND

591 246 ugSample 112919 1048 120619 2346 1Chloromethane ND

296 236 ugSample 112919 1048 120619 2346 1cis-12-Dichloroethene ND

296 508 ugSample 112919 1048 120619 2346 1cis-13-Dichloropropene ND

296 284 ugSample 112919 1048 120619 2346 1Dibromomethane ND

591 104 ugSample 112919 1048 120619 2346 1Dichlorodifluoromethane ND

296 485 ugSample 112919 1048 120619 2346 1Ethylbenzene ND

296 296 ugSample 112919 1048 120619 2346 1Heptafluoropropyl 1222-tetrafluoroethyl ether

193

296 780 ugSample 112919 1048 120619 2346 1Hexachlorobutadiene ND

284 284 ugSample 112919 1048 120619 2346 1HFPO dimer methyl ester as

HFPO-DA

ND

296 414 ugSample 112919 1048 120619 2346 1Isopropylbenzene ND

591 485 ugSample 112919 1048 120619 2346 1mp-Xylene ND

296 189 ugSample 112919 1048 120619 2346 1Methylene Chloride ND

296 142 ugSample 112919 1048 120619 2346 1Naphthalene ND

296 757 ugSample 112919 1048 120619 2346 1n-Butylbenzene ND

296 638 ugSample 112919 1048 120619 2346 1n-Propylbenzene ND

296 307 ugSample 112919 1048 120619 2346 1o-Xylene ND

296 579 ugSample 112919 1048 120619 2346 1sec-Butylbenzene ND

296 638 ugSample 112919 1048 120619 2346 1Styrene ND

296 520 ugSample 112919 1048 120619 2346 1tert-Butylbenzene ND

296 390 ugSample 112919 1048 120619 2346 1Tetrachloroethene ND

296 544 ugSample 112919 1048 120619 2346 1Toluene ND

296 307 ugSample 112919 1048 120619 2346 1trans-12-Dichloroethene ND

296 104 ugSample 112919 1048 120619 2346 1trans-13-Dichloropropene ND

296 213 ugSample 112919 1048 120619 2346 1Trichloroethene ND

591 567 ugSample 112919 1048 120619 2346 1Trichlorofluoromethane ND

591 142 ugSample 112919 1048 120619 2346 1Vinyl chloride ND

Unknown 341 T J ugSample 113 112919 1048 120619 2346 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2346112919 1048T JUnknown 2160 ugSample 119

1120619 2346112919 1048T J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-8497 ugSample 122

1120619 2346112919 1048T J NCyclohexane 110-82-7397 ugSample 442

1120619 2346112919 1048T J NCyclotetrasiloxane octamethyl- 556-67-2316 ugSample 878

1120619 2346112919 1048T J NSalicylic acid 2TMS derivative 3789-85-3307 ugSample 1136

1120619 2346112919 1048T JUnknown 563 ugSample 1317

12-Dichloroethane-d4 (Surr) 115 70 - 160 112919 1048 120619 2346 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Eurofins TestAmerica Knoxville

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-8Client Sample ID Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)

4-Bromofluorobenzene (Surr) 110 57 - 152 112919 1048 120619 2346 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Dibromofluoromethane (Surr) 104 112919 1048 120619 2346 162 - 134

Toluene-d8 (Surr) 97 112919 1048 120619 2346 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 24300 6380 3190 ugSample 112919 1048 121319 1843 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2600 1180 ugSample 112919 1048 121819 1009 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-9Client Sample ID Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND H 308 406 ugSample 112919 1048 120719 0010 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

615 615 ugSample 112919 1048 120719 0010 111133-Pentafluorobutane ND H

308 443 ugSample 112919 1048 120719 0010 1111-Trichloroethane ND H

615 122 ugSample 112919 1048 120719 0010 1111-Trifluoro-22-dichloroethane ND H

615 615 ugSample 112919 1048 120719 0010 1111-Trifluoroethane ND H

308 591 ugSample 112919 1048 120719 0010 11122-Tetrachloroethane ND H

615 345 ugSample 112919 1048 120719 0010 1112-Trichloro-122-trifluoroethane ND H

615 615 ugSample 112919 1048 120719 0010 1112-trichloro-1-fluoroethane ND H

308 320 ugSample 112919 1048 120719 0010 1112-Trichloroethane ND H

615 308 ugSample 112919 1048 120719 0010 111-Dichloro-1-fluoroethane ND H

615 615 ugSample 112919 1048 120719 0010 111-dichloro-22-difluoroethane ND H

615 615 ugSample 112919 1048 120719 0010 111-dichloro-22-difluoroethene ND H

308 369 ugSample 112919 1048 120719 0010 111-Dichloroethane ND H

308 455 ugSample 112919 1048 120719 0010 111-Dichloroethene ND H

308 332 ugSample 112919 1048 120719 0010 111-Dichloropropene ND H

615 615 ugSample 112919 1048 120719 0010 111-Difluoroethene ND H

615 615 ugSample 112919 1048 120719 0010 1122-trichloro-11-difluoroethane ND H

308 985 ugSample 112919 1048 120719 0010 1123-Trichlorobenzene ND H

308 763 ugSample 112919 1048 120719 0010 1123-Trichloropropane ND H

308 103 ugSample 112919 1048 120719 0010 1124-Trichlorobenzene ND H

308 640 ugSample 112919 1048 120719 0010 1124-Trimethylbenzene ND H

615 108 ugSample 112919 1048 120719 0010 112-Dibromo-3-Chloropropane ND H

308 406 ugSample 112919 1048 120719 0010 112-Dibromoethane (EDB) ND H

615 615 ugSample 112919 1048 120719 0010 112-dichloro-11-difluoroethane ND H

308 542 ugSample 112919 1048 120719 0010 112-Dichlorobenzene ND H

308 517 ugSample 112919 1048 120719 0010 112-Dichloroethane ND H

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-9Client Sample ID Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

12-Dichloropropane ND H 308 308 ugSample 112919 1048 120719 0010 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

308 640 ugSample 112919 1048 120719 0010 1135-Trimethylbenzene ND H

308 529 ugSample 112919 1048 120719 0010 113-Dichlorobenzene ND H

308 345 ugSample 112919 1048 120719 0010 113-Dichloropropane ND H

308 615 ugSample 112919 1048 120719 0010 114-Dichlorobenzene ND H

615 628 ugSample 112919 1048 120719 0010 11-Chloro-11-difluoroethane ND H

615 615 ugSample 112919 1048 120719 0010 122-dichloro-11-difluoroethylmethyl

ether

ND H

308 898 ugSample 112919 1048 120719 0010 122-Dichloropropane ND H

123 197 ugSample 112919 1048 120719 0010 12-Butanone (MEK) ND H

615 911 ugSample 112919 1048 120719 0010 12-chloro-111444-hexafluoro-2-but

ene

ND H

615 615 ugSample 112919 1048 120719 0010 12-Chloro-111-Trifluoroethane ND H

308 578 ugSample 112919 1048 120719 0010 12-Chlorotoluene ND H

123 283 ugSample 112919 1048 120719 0010 12-Hexanone ND H

269 269 ugSample 112919 1048 120719 0010 12-MTP as HFPO 609 H

308 640 ugSample 112919 1048 120719 0010 14-Chlorotoluene ND H

308 825 ugSample 112919 1048 120719 0010 14-Isopropyltoluene ND H

123 197 ugSample 112919 1048 120719 0010 14-Methyl-2-pentanone (MIBK) ND H

123 726 ugSample 112919 1048 120719 0010 1Acetone ND H

308 591 ugSample 112919 1048 120719 0010 1Benzene ND H

308 431 ugSample 112919 1048 120719 0010 1Bromobenzene ND H

308 689 ugSample 112919 1048 120719 0010 1Bromochloromethane ND H

308 529 ugSample 112919 1048 120719 0010 1Bromodichloromethane ND H

308 935 ugSample 112919 1048 120719 0010 1Bromoform ND H

615 357 ugSample 112919 1048 120719 0010 1Bromomethane ND H

308 763 ugSample 112919 1048 120719 0010 1Carbon disulfide ND H

308 406 ugSample 112919 1048 120719 0010 1Carbon tetrachloride ND H

901 901 ugSample 112919 1048 120719 0010 1Carbonyl Difluoride ND H

308 443 ugSample 112919 1048 120719 0010 1Chlorobenzene ND H

308 665 ugSample 112919 1048 120719 0010 1Chlorodibromomethane ND H

615 135 ugSample 112919 1048 120719 0010 1Chloroethane ND H

308 357 ugSample 112919 1048 120719 0010 1Chloroform ND H

615 256 ugSample 112919 1048 120719 0010 1Chloromethane ND H

308 246 ugSample 112919 1048 120719 0010 1cis-12-Dichloroethene ND H

308 529 ugSample 112919 1048 120719 0010 1cis-13-Dichloropropene ND H

308 295 ugSample 112919 1048 120719 0010 1Dibromomethane ND H

615 108 ugSample 112919 1048 120719 0010 1Dichlorodifluoromethane ND H

308 505 ugSample 112919 1048 120719 0010 1Ethylbenzene ND H

308 308 ugSample 112919 1048 120719 0010 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND H

308 812 ugSample 112919 1048 120719 0010 1Hexachlorobutadiene ND H

295 295 ugSample 112919 1048 120719 0010 1HFPO dimer methyl ester as

HFPO-DA

ND H

308 431 ugSample 112919 1048 120719 0010 1Isopropylbenzene ND H

615 505 ugSample 112919 1048 120719 0010 1mp-Xylene ND H

308 197 ugSample 112919 1048 120719 0010 1Methylene Chloride ND H

308 148 ugSample 112919 1048 120719 0010 1Naphthalene ND H

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-9Client Sample ID Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

n-Butylbenzene ND H 308 788 ugSample 112919 1048 120719 0010 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

308 665 ugSample 112919 1048 120719 0010 1n-Propylbenzene ND H

308 320 ugSample 112919 1048 120719 0010 1o-Xylene ND H

308 603 ugSample 112919 1048 120719 0010 1sec-Butylbenzene ND H

308 665 ugSample 112919 1048 120719 0010 1Styrene ND H

308 542 ugSample 112919 1048 120719 0010 1tert-Butylbenzene ND H

308 406 ugSample 112919 1048 120719 0010 1Tetrachloroethene ND H

308 566 ugSample 112919 1048 120719 0010 1Toluene ND H

308 320 ugSample 112919 1048 120719 0010 1trans-12-Dichloroethene ND H

308 108 ugSample 112919 1048 120719 0010 1trans-13-Dichloropropene ND H

308 222 ugSample 112919 1048 120719 0010 1Trichloroethene ND H

615 591 ugSample 112919 1048 120719 0010 1Trichlorofluoromethane ND H

615 148 ugSample 112919 1048 120719 0010 1Vinyl chloride ND H

Unknown 490 T H J ugSample 113 112919 1048 120719 0010 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120719 0010112919 1048T H J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-82290 ugSample 118

1120719 0010112919 1048T H J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-8410 ugSample 122

1120719 0010112919 1048T H J NCyclohexane 110-82-7426 ugSample 442

12-Dichloroethane-d4 (Surr) 118 70 - 160 112919 1048 120719 0010 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1048 120719 0010 157 - 152

Dibromofluoromethane (Surr) 104 112919 1048 120719 0010 162 - 134

Toluene-d8 (Surr) 97 112919 1048 120719 0010 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 3770 J 6560 3280 ugSample 112919 1048 121319 1945 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2710 1230 ugSample 112919 1048 121819 1111 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-10Client Sample ID Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND H 304 401 ugSample 112919 1048 120719 0035 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

608 608 ugSample 112919 1048 120719 0035 111133-Pentafluorobutane ND H

304 438 ugSample 112919 1048 120719 0035 1111-Trichloroethane ND H

608 120 ugSample 112919 1048 120719 0035 1111-Trifluoro-22-dichloroethane ND H

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ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-10Client Sample ID Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

111-Trifluoroethane ND H 608 608 ugSample 112919 1048 120719 0035 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

304 584 ugSample 112919 1048 120719 0035 11122-Tetrachloroethane ND H

608 341 ugSample 112919 1048 120719 0035 1112-Trichloro-122-trifluoroethane ND H

608 608 ugSample 112919 1048 120719 0035 1112-trichloro-1-fluoroethane ND H

304 316 ugSample 112919 1048 120719 0035 1112-Trichloroethane ND H

608 304 ugSample 112919 1048 120719 0035 111-Dichloro-1-fluoroethane ND H

608 608 ugSample 112919 1048 120719 0035 111-dichloro-22-difluoroethane ND H

608 608 ugSample 112919 1048 120719 0035 111-dichloro-22-difluoroethene ND H

304 365 ugSample 112919 1048 120719 0035 111-Dichloroethane ND H

304 450 ugSample 112919 1048 120719 0035 111-Dichloroethene ND H

304 328 ugSample 112919 1048 120719 0035 111-Dichloropropene ND H

608 608 ugSample 112919 1048 120719 0035 111-Difluoroethene ND H

608 608 ugSample 112919 1048 120719 0035 1122-trichloro-11-difluoroethane ND H

304 973 ugSample 112919 1048 120719 0035 1123-Trichlorobenzene ND H

304 754 ugSample 112919 1048 120719 0035 1123-Trichloropropane ND H

304 102 ugSample 112919 1048 120719 0035 1124-Trichlorobenzene ND H

304 632 ugSample 112919 1048 120719 0035 1124-Trimethylbenzene ND H

608 107 ugSample 112919 1048 120719 0035 112-Dibromo-3-Chloropropane ND H

304 401 ugSample 112919 1048 120719 0035 112-Dibromoethane (EDB) ND H

608 608 ugSample 112919 1048 120719 0035 112-dichloro-11-difluoroethane ND H

304 535 ugSample 112919 1048 120719 0035 112-Dichlorobenzene ND H

304 511 ugSample 112919 1048 120719 0035 112-Dichloroethane ND H

304 304 ugSample 112919 1048 120719 0035 112-Dichloropropane ND H

304 632 ugSample 112919 1048 120719 0035 1135-Trimethylbenzene ND H

304 523 ugSample 112919 1048 120719 0035 113-Dichlorobenzene ND H

304 341 ugSample 112919 1048 120719 0035 113-Dichloropropane ND H

304 608 ugSample 112919 1048 120719 0035 114-Dichlorobenzene ND H

608 620 ugSample 112919 1048 120719 0035 11-Chloro-11-difluoroethane ND H

608 608 ugSample 112919 1048 120719 0035 122-dichloro-11-difluoroethylmethyl

ether

ND H

304 888 ugSample 112919 1048 120719 0035 122-Dichloropropane ND H

122 195 ugSample 112919 1048 120719 0035 12-Butanone (MEK) ND H

608 900 ugSample 112919 1048 120719 0035 12-chloro-111444-hexafluoro-2-but

ene

ND H

608 608 ugSample 112919 1048 120719 0035 12-Chloro-111-Trifluoroethane ND H

304 572 ugSample 112919 1048 120719 0035 12-Chlorotoluene ND H

122 280 ugSample 112919 1048 120719 0035 12-Hexanone ND H

266 266 ugSample 112919 1048 120719 0035 12-MTP as HFPO 629 H

304 632 ugSample 112919 1048 120719 0035 14-Chlorotoluene ND H

304 815 ugSample 112919 1048 120719 0035 14-Isopropyltoluene ND H

122 195 ugSample 112919 1048 120719 0035 14-Methyl-2-pentanone (MIBK) ND H

122 718 ugSample 112919 1048 120719 0035 1Acetone ND H

304 584 ugSample 112919 1048 120719 0035 1Benzene ND H

304 426 ugSample 112919 1048 120719 0035 1Bromobenzene ND H

304 681 ugSample 112919 1048 120719 0035 1Bromochloromethane ND H

304 523 ugSample 112919 1048 120719 0035 1Bromodichloromethane ND H

304 924 ugSample 112919 1048 120719 0035 1Bromoform ND H

608 353 ugSample 112919 1048 120719 0035 1Bromomethane ND H

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ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-10Client Sample ID Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Carbon disulfide ND H 304 754 ugSample 112919 1048 120719 0035 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

304 401 ugSample 112919 1048 120719 0035 1Carbon tetrachloride ND H

894 894 ugSample 112919 1048 120719 0035 1Carbonyl Difluoride ND H

304 438 ugSample 112919 1048 120719 0035 1Chlorobenzene ND H

304 657 ugSample 112919 1048 120719 0035 1Chlorodibromomethane ND H

608 134 ugSample 112919 1048 120719 0035 1Chloroethane ND H

304 353 ugSample 112919 1048 120719 0035 1Chloroform ND H

608 253 ugSample 112919 1048 120719 0035 1Chloromethane ND H

304 243 ugSample 112919 1048 120719 0035 1cis-12-Dichloroethene ND H

304 523 ugSample 112919 1048 120719 0035 1cis-13-Dichloropropene ND H

304 292 ugSample 112919 1048 120719 0035 1Dibromomethane ND H

608 107 ugSample 112919 1048 120719 0035 1Dichlorodifluoromethane ND H

304 499 ugSample 112919 1048 120719 0035 1Ethylbenzene ND H

304 304 ugSample 112919 1048 120719 0035 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND H

304 803 ugSample 112919 1048 120719 0035 1Hexachlorobutadiene ND H

292 292 ugSample 112919 1048 120719 0035 1HFPO dimer methyl ester as

HFPO-DA

ND H

304 426 ugSample 112919 1048 120719 0035 1Isopropylbenzene ND H

608 499 ugSample 112919 1048 120719 0035 1mp-Xylene ND H

304 195 ugSample 112919 1048 120719 0035 1Methylene Chloride ND H

304 146 ugSample 112919 1048 120719 0035 1Naphthalene ND H

304 778 ugSample 112919 1048 120719 0035 1n-Butylbenzene ND H

304 657 ugSample 112919 1048 120719 0035 1n-Propylbenzene ND H

304 316 ugSample 112919 1048 120719 0035 1o-Xylene ND H

304 596 ugSample 112919 1048 120719 0035 1sec-Butylbenzene ND H

304 657 ugSample 112919 1048 120719 0035 1Styrene ND H

304 535 ugSample 112919 1048 120719 0035 1tert-Butylbenzene ND H

304 401 ugSample 112919 1048 120719 0035 1Tetrachloroethene ND H

304 559 ugSample 112919 1048 120719 0035 1Toluene ND H

304 316 ugSample 112919 1048 120719 0035 1trans-12-Dichloroethene ND H

304 107 ugSample 112919 1048 120719 0035 1trans-13-Dichloropropene ND H

304 219 ugSample 112919 1048 120719 0035 1Trichloroethene ND H

608 584 ugSample 112919 1048 120719 0035 1Trichlorofluoromethane ND H

608 146 ugSample 112919 1048 120719 0035 1Vinyl chloride ND H

Butanoic acid heptafluoro- sodium

salt

484 T H J N ugSample 113 2218-54-4 112919 1048 120719 0035 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120719 0035112919 1048T H JUnknown 1700 ugSample 118

1120719 0035112919 1048T H J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-8316 ugSample 122

1120719 0035112919 1048T H J NCyclohexane 110-82-7432 ugSample 442

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1048 120719 0035 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 110 112919 1048 120719 0035 157 - 152

Dibromofluoromethane (Surr) 103 112919 1048 120719 0035 162 - 134

Toluene-d8 (Surr) 97 112919 1048 120719 0035 171 - 139

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ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-10Client Sample ID Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 3540 J 6490 3240 ugSample 112919 1048 121319 2006 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2680 1220 ugSample 112919 1048 121819 1215 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-11Client Sample ID Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND H 314 414 ugSample 112919 1048 120719 0059 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

627 627 ugSample 112919 1048 120719 0059 111133-Pentafluorobutane ND H

314 452 ugSample 112919 1048 120719 0059 1111-Trichloroethane ND H

627 124 ugSample 112919 1048 120719 0059 1111-Trifluoro-22-dichloroethane ND H

627 627 ugSample 112919 1048 120719 0059 1111-Trifluoroethane ND H

314 602 ugSample 112919 1048 120719 0059 11122-Tetrachloroethane ND H

627 351 ugSample 112919 1048 120719 0059 1112-Trichloro-122-trifluoroethane ND H

627 627 ugSample 112919 1048 120719 0059 1112-trichloro-1-fluoroethane ND H

314 326 ugSample 112919 1048 120719 0059 1112-Trichloroethane ND H

627 314 ugSample 112919 1048 120719 0059 111-Dichloro-1-fluoroethane ND H

627 627 ugSample 112919 1048 120719 0059 111-dichloro-22-difluoroethane ND H

627 627 ugSample 112919 1048 120719 0059 111-dichloro-22-difluoroethene ND H

314 376 ugSample 112919 1048 120719 0059 111-Dichloroethane ND H

314 464 ugSample 112919 1048 120719 0059 111-Dichloroethene ND H

314 339 ugSample 112919 1048 120719 0059 111-Dichloropropene ND H

627 627 ugSample 112919 1048 120719 0059 111-Difluoroethene ND H

627 627 ugSample 112919 1048 120719 0059 1122-trichloro-11-difluoroethane ND H

314 100 ugSample 112919 1048 120719 0059 1123-Trichlorobenzene ND H

314 778 ugSample 112919 1048 120719 0059 1123-Trichloropropane ND H

314 105 ugSample 112919 1048 120719 0059 1124-Trichlorobenzene ND H

314 653 ugSample 112919 1048 120719 0059 1124-Trimethylbenzene ND H

627 110 ugSample 112919 1048 120719 0059 112-Dibromo-3-Chloropropane ND H

314 414 ugSample 112919 1048 120719 0059 112-Dibromoethane (EDB) ND H

627 627 ugSample 112919 1048 120719 0059 112-dichloro-11-difluoroethane ND H

314 552 ugSample 112919 1048 120719 0059 112-Dichlorobenzene ND H

314 527 ugSample 112919 1048 120719 0059 112-Dichloroethane ND H

314 314 ugSample 112919 1048 120719 0059 112-Dichloropropane ND H

314 653 ugSample 112919 1048 120719 0059 1135-Trimethylbenzene ND H

314 540 ugSample 112919 1048 120719 0059 113-Dichlorobenzene ND H

314 351 ugSample 112919 1048 120719 0059 113-Dichloropropane ND H

314 627 ugSample 112919 1048 120719 0059 114-Dichlorobenzene ND H

627 640 ugSample 112919 1048 120719 0059 11-Chloro-11-difluoroethane ND H

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-11Client Sample ID Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

22-dichloro-11-difluoroethylmethyl

ether

ND H 627 627 ugSample 112919 1048 120719 0059 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

314 916 ugSample 112919 1048 120719 0059 122-Dichloropropane ND H

125 201 ugSample 112919 1048 120719 0059 12-Butanone (MEK) ND H

627 929 ugSample 112919 1048 120719 0059 12-chloro-111444-hexafluoro-2-but

ene

ND H

627 627 ugSample 112919 1048 120719 0059 12-Chloro-111-Trifluoroethane ND H

314 590 ugSample 112919 1048 120719 0059 12-Chlorotoluene ND H

125 289 ugSample 112919 1048 120719 0059 12-Hexanone ND H

274 274 ugSample 112919 1048 120719 0059 12-MTP as HFPO 609 H

314 653 ugSample 112919 1048 120719 0059 14-Chlorotoluene ND H

314 841 ugSample 112919 1048 120719 0059 14-Isopropyltoluene ND H

125 201 ugSample 112919 1048 120719 0059 14-Methyl-2-pentanone (MIBK) ND H

125 740 ugSample 112919 1048 120719 0059 1Acetone ND H

314 602 ugSample 112919 1048 120719 0059 1Benzene ND H

314 439 ugSample 112919 1048 120719 0059 1Bromobenzene ND H

314 703 ugSample 112919 1048 120719 0059 1Bromochloromethane ND H

314 540 ugSample 112919 1048 120719 0059 1Bromodichloromethane ND H

314 954 ugSample 112919 1048 120719 0059 1Bromoform ND H

627 364 ugSample 112919 1048 120719 0059 1Bromomethane ND H

314 778 ugSample 112919 1048 120719 0059 1Carbon disulfide ND H

314 414 ugSample 112919 1048 120719 0059 1Carbon tetrachloride ND H

916 916 ugSample 112919 1048 120719 0059 1Carbonyl Difluoride ND H

314 452 ugSample 112919 1048 120719 0059 1Chlorobenzene ND H

314 678 ugSample 112919 1048 120719 0059 1Chlorodibromomethane ND H

627 138 ugSample 112919 1048 120719 0059 1Chloroethane ND H

314 364 ugSample 112919 1048 120719 0059 1Chloroform ND H

627 261 ugSample 112919 1048 120719 0059 1Chloromethane ND H

314 251 ugSample 112919 1048 120719 0059 1cis-12-Dichloroethene ND H

314 540 ugSample 112919 1048 120719 0059 1cis-13-Dichloropropene ND H

314 301 ugSample 112919 1048 120719 0059 1Dibromomethane ND H

627 110 ugSample 112919 1048 120719 0059 1Dichlorodifluoromethane ND H

314 515 ugSample 112919 1048 120719 0059 1Ethylbenzene ND H

314 314 ugSample 112919 1048 120719 0059 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND H

314 828 ugSample 112919 1048 120719 0059 1Hexachlorobutadiene ND H

301 301 ugSample 112919 1048 120719 0059 1HFPO dimer methyl ester as

HFPO-DA

ND H

314 439 ugSample 112919 1048 120719 0059 1Isopropylbenzene ND H

627 515 ugSample 112919 1048 120719 0059 1mp-Xylene ND H

314 201 ugSample 112919 1048 120719 0059 1Methylene Chloride ND H

314 151 ugSample 112919 1048 120719 0059 1Naphthalene ND H

314 803 ugSample 112919 1048 120719 0059 1n-Butylbenzene ND H

314 678 ugSample 112919 1048 120719 0059 1n-Propylbenzene ND H

314 326 ugSample 112919 1048 120719 0059 1o-Xylene ND H

314 615 ugSample 112919 1048 120719 0059 1sec-Butylbenzene ND H

314 678 ugSample 112919 1048 120719 0059 1Styrene ND H

314 552 ugSample 112919 1048 120719 0059 1tert-Butylbenzene ND H

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-11Client Sample ID Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Tetrachloroethene ND H 314 414 ugSample 112919 1048 120719 0059 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

314 577 ugSample 112919 1048 120719 0059 1Toluene ND H

314 326 ugSample 112919 1048 120719 0059 1trans-12-Dichloroethene ND H

314 110 ugSample 112919 1048 120719 0059 1trans-13-Dichloropropene ND H

314 226 ugSample 112919 1048 120719 0059 1Trichloroethene ND H

627 602 ugSample 112919 1048 120719 0059 1Trichlorofluoromethane ND H

627 151 ugSample 112919 1048 120719 0059 1Vinyl chloride ND H

Propene hexafluoro- 421 T H J N ugSample 113 116-15-4 112919 1048 120719 0059 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120719 0059112919 1048T H JUnknown 882 ugSample 118

12-Dichloroethane-d4 (Surr) 116 70 - 160 112919 1048 120719 0059 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1048 120719 0059 157 - 152

Dibromofluoromethane (Surr) 105 112919 1048 120719 0059 162 - 134

Toluene-d8 (Surr) 96 112919 1048 120719 0059 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine ND 6690 3350 ugSample 112919 1048 121319 2027 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2760 1250 ugSample 112919 1048 121819 1238 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-12Client Sample ID Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND H 307 406 ugSample 112919 1048 120719 0124 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

615 615 ugSample 112919 1048 120719 0124 111133-Pentafluorobutane ND H

307 443 ugSample 112919 1048 120719 0124 1111-Trichloroethane ND H

615 122 ugSample 112919 1048 120719 0124 1111-Trifluoro-22-dichloroethane ND H

615 615 ugSample 112919 1048 120719 0124 1111-Trifluoroethane ND H

307 590 ugSample 112919 1048 120719 0124 11122-Tetrachloroethane ND H

615 344 ugSample 112919 1048 120719 0124 1112-Trichloro-122-trifluoroethane ND H

615 615 ugSample 112919 1048 120719 0124 1112-trichloro-1-fluoroethane ND H

307 320 ugSample 112919 1048 120719 0124 1112-Trichloroethane ND H

615 307 ugSample 112919 1048 120719 0124 111-Dichloro-1-fluoroethane ND H

615 615 ugSample 112919 1048 120719 0124 111-dichloro-22-difluoroethane ND H

615 615 ugSample 112919 1048 120719 0124 111-dichloro-22-difluoroethene ND H

307 369 ugSample 112919 1048 120719 0124 111-Dichloroethane ND H

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-12Client Sample ID Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

11-Dichloroethene ND H 307 455 ugSample 112919 1048 120719 0124 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

307 332 ugSample 112919 1048 120719 0124 111-Dichloropropene ND H

615 615 ugSample 112919 1048 120719 0124 111-Difluoroethene ND H

615 615 ugSample 112919 1048 120719 0124 1122-trichloro-11-difluoroethane ND H

307 983 ugSample 112919 1048 120719 0124 1123-Trichlorobenzene ND H

307 762 ugSample 112919 1048 120719 0124 1123-Trichloropropane ND H

307 103 ugSample 112919 1048 120719 0124 1124-Trichlorobenzene ND H

307 639 ugSample 112919 1048 120719 0124 1124-Trimethylbenzene ND H

615 108 ugSample 112919 1048 120719 0124 112-Dibromo-3-Chloropropane ND H

307 406 ugSample 112919 1048 120719 0124 112-Dibromoethane (EDB) ND H

615 615 ugSample 112919 1048 120719 0124 112-dichloro-11-difluoroethane ND H

307 541 ugSample 112919 1048 120719 0124 112-Dichlorobenzene ND H

307 516 ugSample 112919 1048 120719 0124 112-Dichloroethane ND H

307 307 ugSample 112919 1048 120719 0124 112-Dichloropropane ND H

307 639 ugSample 112919 1048 120719 0124 1135-Trimethylbenzene ND H

307 529 ugSample 112919 1048 120719 0124 113-Dichlorobenzene ND H

307 344 ugSample 112919 1048 120719 0124 113-Dichloropropane ND H

307 615 ugSample 112919 1048 120719 0124 114-Dichlorobenzene ND H

615 627 ugSample 112919 1048 120719 0124 11-Chloro-11-difluoroethane ND H

615 615 ugSample 112919 1048 120719 0124 122-dichloro-11-difluoroethylmethyl

ether

ND H

307 897 ugSample 112919 1048 120719 0124 122-Dichloropropane ND H

123 197 ugSample 112919 1048 120719 0124 12-Butanone (MEK) ND H

615 910 ugSample 112919 1048 120719 0124 12-chloro-111444-hexafluoro-2-but

ene

ND H

615 615 ugSample 112919 1048 120719 0124 12-Chloro-111-Trifluoroethane ND H

307 578 ugSample 112919 1048 120719 0124 12-Chlorotoluene ND H

123 283 ugSample 112919 1048 120719 0124 12-Hexanone ND H

268 268 ugSample 112919 1048 120719 0124 12-MTP as HFPO 583 H

307 639 ugSample 112919 1048 120719 0124 14-Chlorotoluene ND H

307 824 ugSample 112919 1048 120719 0124 14-Isopropyltoluene ND H

123 197 ugSample 112919 1048 120719 0124 14-Methyl-2-pentanone (MIBK) ND H

123 725 ugSample 112919 1048 120719 0124 1Acetone ND H

307 590 ugSample 112919 1048 120719 0124 1Benzene ND H

307 430 ugSample 112919 1048 120719 0124 1Bromobenzene ND H

307 688 ugSample 112919 1048 120719 0124 1Bromochloromethane ND H

307 529 ugSample 112919 1048 120719 0124 1Bromodichloromethane ND H

307 934 ugSample 112919 1048 120719 0124 1Bromoform ND H

615 356 ugSample 112919 1048 120719 0124 1Bromomethane ND H

307 762 ugSample 112919 1048 120719 0124 1Carbon disulfide ND H

307 406 ugSample 112919 1048 120719 0124 1Carbon tetrachloride ND H

901 901 ugSample 112919 1048 120719 0124 1Carbonyl Difluoride ND H

307 443 ugSample 112919 1048 120719 0124 1Chlorobenzene ND H

307 664 ugSample 112919 1048 120719 0124 1Chlorodibromomethane ND H

615 135 ugSample 112919 1048 120719 0124 1Chloroethane ND H

307 356 ugSample 112919 1048 120719 0124 1Chloroform ND H

615 256 ugSample 112919 1048 120719 0124 1Chloromethane ND H

307 246 ugSample 112919 1048 120719 0124 1cis-12-Dichloroethene ND H

Eurofins TestAmerica Knoxville

12232019Page 41 of 89492

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-12Client Sample ID Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

cis-13-Dichloropropene ND H 307 529 ugSample 112919 1048 120719 0124 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

307 295 ugSample 112919 1048 120719 0124 1Dibromomethane ND H

615 108 ugSample 112919 1048 120719 0124 1Dichlorodifluoromethane ND H

307 504 ugSample 112919 1048 120719 0124 1Ethylbenzene ND H

307 307 ugSample 112919 1048 120719 0124 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND H

307 811 ugSample 112919 1048 120719 0124 1Hexachlorobutadiene ND H

294 294 ugSample 112919 1048 120719 0124 1HFPO dimer methyl ester as

HFPO-DA

ND H

307 430 ugSample 112919 1048 120719 0124 1Isopropylbenzene ND H

615 504 ugSample 112919 1048 120719 0124 1mp-Xylene ND H

307 197 ugSample 112919 1048 120719 0124 1Methylene Chloride ND H

307 148 ugSample 112919 1048 120719 0124 1Naphthalene ND H

307 787 ugSample 112919 1048 120719 0124 1n-Butylbenzene ND H

307 664 ugSample 112919 1048 120719 0124 1n-Propylbenzene ND H

307 320 ugSample 112919 1048 120719 0124 1o-Xylene ND H

307 602 ugSample 112919 1048 120719 0124 1sec-Butylbenzene ND H

307 664 ugSample 112919 1048 120719 0124 1Styrene ND H

307 541 ugSample 112919 1048 120719 0124 1tert-Butylbenzene ND H

307 406 ugSample 112919 1048 120719 0124 1Tetrachloroethene ND H

307 565 ugSample 112919 1048 120719 0124 1Toluene ND H

307 320 ugSample 112919 1048 120719 0124 1trans-12-Dichloroethene ND H

307 108 ugSample 112919 1048 120719 0124 1trans-13-Dichloropropene ND H

307 221 ugSample 112919 1048 120719 0124 1Trichloroethene ND H

615 590 ugSample 112919 1048 120719 0124 1Trichlorofluoromethane ND H

615 148 ugSample 112919 1048 120719 0124 1Vinyl chloride ND H

Propene hexafluoro- 333 T H J N ugSample 113 116-15-4 112919 1048 120719 0124 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120719 0124112919 1048T H JUnknown 498 ugSample 118

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1048 120719 0124 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 112919 1048 120719 0124 157 - 152

Dibromofluoromethane (Surr) 104 112919 1048 120719 0124 162 - 134

Toluene-d8 (Surr) 96 112919 1048 120719 0124 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 28100 6560 3280 ugSample 112919 1048 121319 2047 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2700 1230 ugSample 112919 1048 121819 1259 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Eurofins TestAmerica Knoxville

12232019Page 42 of 89493

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17461-1ProjectSite VEN Stack - MM-18

Method 8260B - Volatile Organic Compounds (GCMS)Prep MeOH Prep

2501112-Tetrachloroethane ugSample

Analyte UnitsMDLRL

0330

50011133-Pentafluorobutane ugSample0500

250111-Trichloroethane ugSample0360

500111-Trifluoro-22-dichloroethane ugSample0990

500111-Trifluoroethane ugSample0500

2501122-Tetrachloroethane ugSample0480

500112-Trichloro-122-trifluoroethane ugSample0280

500112-trichloro-1-fluoroethane ugSample0500

250112-Trichloroethane ugSample0260

50011-Dichloro-1-fluoroethane ugSample250

50011-dichloro-22-difluoroethane ugSample0500

50011-dichloro-22-difluoroethene ugSample0500

25011-Dichloroethane ugSample0300

25011-Dichloroethene ugSample0370

25011-Dichloropropene ugSample0270

50011-Difluoroethene ugSample500

500122-trichloro-11-difluoroethane ugSample0500

250123-Trichlorobenzene ugSample0800

250123-Trichloropropane ugSample0620

250124-Trichlorobenzene ugSample0840

250124-Trimethylbenzene ugSample0520

50012-Dibromo-3-Chloropropane ugSample0880

25012-Dibromoethane (EDB) ugSample0330

50012-dichloro-11-difluoroethane ugSample0500

25012-Dichlorobenzene ugSample0440

25012-Dichloroethane ugSample0420

25012-Dichloropropane ugSample0250

250135-Trimethylbenzene ugSample0520

25013-Dichlorobenzene ugSample0430

25013-Dichloropropane ugSample0280

25014-Dichlorobenzene ugSample0500

5001-Chloro-11-difluoroethane ugSample0510

50022-dichloro-11-difluoroethylmethyl ether ugSample0500

25022-Dichloropropane ugSample0730

1002-Butanone (MEK) ugSample160

5002-chloro-111444-hexafluoro-2-butene ugSample0740

5002-Chloro-111-Trifluoroethane ugSample0500

2502-Chlorotoluene ugSample0470

1002-Hexanone ugSample230

2502-MTP as HFPO ugSample250

2504-Chlorotoluene ugSample0520

2504-Isopropyltoluene ugSample0670

1004-Methyl-2-pentanone (MIBK) ugSample160

100Acetone ugSample590

250Benzene ugSample0480

250Bromobenzene ugSample0350

250Bromochloromethane ugSample0560

250Bromodichloromethane ugSample0430

250Bromoform ugSample0760

500Bromomethane ugSample290

250Carbon disulfide ugSample0620

250Carbon tetrachloride ugSample0330

Eurofins TestAmerica Knoxville

12232019Page 43 of 89494

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17461-1ProjectSite VEN Stack - MM-18

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)Prep MeOH Prep

100Carbonyl Difluoride ugSample

Analyte UnitsMDLRL

100

250Chlorobenzene ugSample0360

250Chlorodibromomethane ugSample0540

500Chloroethane ugSample110

250Chloroform ugSample0290

500Chloromethane ugSample208

250cis-12-Dichloroethene ugSample0200

250cis-13-Dichloropropene ugSample0430

250Dibromomethane ugSample0240

500Dichlorodifluoromethane ugSample0880

250Ethylbenzene ugSample0410

250Heptafluoropropyl 1222-tetrafluoroethyl ether ugSample250

250Hexachlorobutadiene ugSample0660

250HFPO dimer methyl ester as HFPO-DA ugSample250

250Isopropylbenzene ugSample0350

500mp-Xylene ugSample0410

250Methylene Chloride ugSample160

250Naphthalene ugSample120

250n-Butylbenzene ugSample0640

250n-Propylbenzene ugSample0540

250o-Xylene ugSample0260

250sec-Butylbenzene ugSample0490

250Styrene ugSample0540

250tert-Butylbenzene ugSample0440

250Tetrachloroethene ugSample0330

250Toluene ugSample0460

250trans-12-Dichloroethene ugSample0260

250trans-13-Dichloropropene ugSample0880

250Trichloroethene ugSample0180

500Trichlorofluoromethane ugSample0480

500Vinyl chloride ugSample120

Method 9056 - Anions Ion ChromatographyPrep MeOH Prep

110Hydrogen Fluoride ugSample

Analyte UnitsMDLRL

500

1000Total Fluorine ugSample500

Eurofins TestAmerica Knoxville

12232019Page 44 of 89495

ANALYTICAL REPORTJob Number 140-17557-1

Job Description VEN Stack - MM-18

Contract Number LBIO-67048

ForChemours Company FC LLC The

co AECOMSabre Building Suite 300

4051 Ogletown RoadNewark DE 19713

Attention Michael Aucoin

_____________________________________________

Approved for releaseCourtney M AdkinsProject Manager II12302019 639 AM

Courtney M Adkins Project Manager II5815 Middlebrook Pike Knoxville TN 37921

(865)291-3000 courtneyadkinstestamericainccom

12302019

This report may not be reproduced except in full and with written approval from the laboratory For questions please contact the Project Manager atthe e-mail address or telephone number listed on this page

The test results in this report relate only to the samples as received by the laboratory and will meet all requirements of the methodology with anyexceptions noted This report shall not be reproduced except in full without the express written approval of the laboratory All questions should bedirected to the Eurofins TestAmerica Project Manager

This report has been electronically signed and authorized by the signatory Electronic signature is intended to be the legally binding equivalent of atraditionally handwritten signature

Eurofins TestAmerica Knoxville

5815 Middlebrook Pike Knoxville TN 37921

Tel (865) 291-3000 Fax (865) 584-4315 wwwtestamericainccom

12302019Page 1 of 70696

Table of ContentsCover Title Page 1

Data Summaries 5

Definitions 5

Method Summary 6

Sample Summary 7

Case Narrative 8

QC Association 10

Client Sample Results 13

Default Detection Limits 28

Surrogate Summary 30

QC Sample Results 31

Chronicle 38

Certification Summary 44

Manual Integration Summary 45

Organic Sample Data 55

GCMS VOA 55

Method 8260B 55Method 8260B QC Summary 56Method 8260B Sample Data 71Standards Data 188

Method 8260B ICAL Data 188Method 8260B CCAL Data 290

Raw QC Data 362Method 8260B Tune Data 362Method 8260B Blank Data 382Method 8260B LCSLCSD Data 391

12302019Page 2 of 70697

Table of ContentsMethod 8260B MSMSD Data 403

Method 8260B Run Logs 411Method 8260B Prep Data 428

HPLCIC 431

Method 9056 431Method 9056 QC Summary 432Method 9056 Sample Data 437Standards Data 455

Method 9056 ICAL Data 455Method 9056 CCAL Data 482

Raw QC Data 511Method 9056 Blank Data 511Method 9056 LCSLCSD Data 532Method 9056 MSMSD Data 538

Method 9056 Run Logs 544Method 9056 Prep Data 549

Method 9056A Total Halogens 552Method 9056A Total Halogens QC Summary 553Method 9056A Total Halogens Sample Data 558Standards Data 576

Method 9056A Total Halogens ICAL Data 576Method 9056A Total Halogens CCAL Data 601

Raw QC Data 629Method 9056A Total Halogens Blank Data 629Method 9056A Total Halogens LCSLCSD Data 654Method 9056A Total Halogens MSMSD Data 660

12302019Page 3 of 70698

Table of ContentsMethod 9056A Total Halogens Run Logs 666Method 9056A Total Halogens Prep Data 680

Inorganic Sample Data 685

General Chemistry Data 685

Gen Chem Cover Page 686

Gen Chem Sample Data 687

Gen Chem QC Data 693Gen Chem ICVCCV 693Gen Chem Duplicates 694

Gen Chem MDL 695

Gen Chem Analysis Run Log 696

Gen Chem Prep Data 697

Gen Chem Raw Data 698

Shipping and Receiving Documents 699

Client Chain of Custody 700

12302019Page 4 of 70699

DefinitionsGlossaryJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Qualifiers

GCMS VOAQualifier Description

LCS or LCSD is outside acceptance limits

Qualifier

4 MS MSD The analyte present in the original sample is greater than 4 times the matrix spike concentration therefore control limits are not

applicableE Result exceeded calibration range

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

GCMS VOA TICsQualifier Description

J Indicates an Estimated Value for TICs

Qualifier

N Presumptive evidence of material

T Result is a tentatively identified compound (TIC) and an estimated value

HPLCICQualifier Description

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

Qualifier

General ChemistryQualifier Description

HF Field parameter with a holding time of 15 minutes Test performed by laboratory at clients request

Qualifier

GlossaryThese commonly used abbreviations may or may not be present in this report

curren Listed under the D column to designate that the result is reported on a dry weight basis

Abbreviation

R Percent Recovery

CFL Contains Free Liquid

CNF Contains No Free Liquid

DER Duplicate Error Ratio (normalized absolute difference)

Dil Fac Dilution Factor

DL Detection Limit (DoDDOE)

DL RA RE IN Indicates a Dilution Re-analysis Re-extraction or additional Initial metalsanion analysis of the sample

DLC Decision Level Concentration (Radiochemistry)

EDL Estimated Detection Limit (Dioxin)

LOD Limit of Detection (DoDDOE)

LOQ Limit of Quantitation (DoDDOE)

MDA Minimum Detectable Activity (Radiochemistry)

MDC Minimum Detectable Concentration (Radiochemistry)

MDL Method Detection Limit

ML Minimum Level (Dioxin)

NC Not Calculated

ND Not Detected at the reporting limit (or MDL or EDL if shown)

PQL Practical Quantitation Limit

QC Quality Control

RER Relative Error Ratio (Radiochemistry)

RL Reporting Limit or Requested Limit (Radiochemistry)

RPD Relative Percent Difference a measure of the relative difference between two points

TEF Toxicity Equivalent Factor (Dioxin)

TEQ Toxicity Equivalent Quotient (Dioxin)

Eurofins TestAmerica Knoxville

12302019Page 5 of 706100

Method SummaryJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Method Method Description LaboratoryProtocol

SW8468260B Volatile Organic Compounds (GCMS) TAL KNX

SW8469056 Anions Ion Chromatography TAL KNX

SW8469041A pH TAL KNX

SW8465050 Bomb Preparation Method for Solid Waste TAL KNX

NoneMeOH Prep Methanol Impinger Preparation TAL KNX

Protocol References

None = None

SW846 = Test Methods For Evaluating Solid Waste PhysicalChemical Methods Third Edition November 1986 And Its Updates

Laboratory References

TAL KNX = Eurofins TestAmerica Knoxville 5815 Middlebrook Pike Knoxville TN 37921 TEL (865)291-3000

Eurofins TestAmerica Knoxville

12302019Page 6 of 706101

Sample SummaryJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID Client Sample ID ReceivedCollectedMatrix Asset ID

140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 Air 120419 0000 120719 0800

140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 Air 120419 0000 120719 0800

140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 Air 120419 0000 120719 0800

140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 Air 120419 0000 120719 0800

140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 Air 120419 0000 120719 0800

140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 Air 120419 0000 120719 0800

Eurofins TestAmerica Knoxville

12302019Page 7 of 706102

Job Narrative140-17557-1

Receipt The samples were received on December 7 2019 at 800 AM the samples arrived in good condition properly preserved and where required on ice The temperatures of the 2 coolers at receipt time were 09ordm C and 14ordm C

GCMS VOA Impinger Sample Preparation and Analysis Impinger samples were analyzed for the volatile organic target analytes by purge and trap GCMS using Eurofins TestAmerica Knoxville standard operating procedure KNOX-MS-0015 based on the following method

middot SW-846 8260B ldquoVolatile Organic Compounds by Gas Chromatography Mass Spectrometry (GCMS)rdquo

Each sample is prepared by adding a known amount of sample to the purge water in a purge and trap vessel and spiking with internal standards surrogates and matrix spike analytes (as needed) Volatile compounds are introduced into the gas chromatograph by the purge and trap method The components are separated using the chromatograph and detected using a mass spectrometer which provides both qualitative and quantitative information

Impinger sample results were calculated using the following equation

Concentration μgsample = (C times DF times W times Vt) (Va)WhereC = On-column concentration μgLDF = Dilution factorW = Volume of water purged LVt = Methanol extract final volume μL Va = Volume of extract analyzed microL

Method 8260B (LCS 140-359561-A) for analytical batch 140-35964 recovered below marginal exceedance limits for Trichlorofluoromethane This is an ongoing instrument issue with LCS recoveries for this analyte The project manager approved moving forward with analysis for the current job

Method 8260B The following samples were diluted to bring the concentration of target analytes within the calibration range Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 (140-17557-1) Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 (140-17557-2) Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 (140-17557-3) Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 (140-17557-4) Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 (140-17557-5) and Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 (140-17557-6) Elevated reporting limits (RLs) are provided

Method 8260B The continuing calibration verification (CCV) associated with batch 140-35990 recovered above the upper control limit for Chloroethane The samples associated with this CCV were non-detects for the affected analytes therefore the data have been reported

No additional analytical or quality issues were noted other than those described above or in the DefinitionsGlossary page

General Chemistry Total Halogens The samples were prepared for total fluorine chlorine bromine andor iodine using SOP number KNOX-WC-0016 (based on ASTM Method E442 and SW-846 Method 5050) The sample is oxidized by combustion in an oxygen flask at atmospheric pressure or a bomb containing oxygen under pressure The liberated halogen compounds are absorbed primarily as halides in a sodium carbonatesodium bicarbonate buffer solution The combustion products are collected by repeated rinsing of the combustion apparatus and analyzed by ion chromatography in accordance with SOP KNOX-WC-0005 (based on SW-846 Method 9056) The results are calculated using the following equation

C = [(Ccom times Vcom) W] times 1000 gKg

WhereC = Concentration of analyte in the sample mgKgCcom = Concentration of analyte in the combustate mgLVcom = Total volume of combustate LW = Weight of sample combusted g

Anions in Impinger Solutions Anions are is determined in accordance to SOP KNOX-WC-0005 (based on methods 3000A and 9056) The samples were diluted a minimum of 120 in ion chromatography solvent buffer solution to reduce the methanol concentration before injection Buffer concentrate was added until the pH was 10 Samples are diluted with ion chromatography eluate solution to bring the

12302019Page 8 of 706103

concentrations within the calibration range when necessary Higher dilutions are applied as necessary

An aliquot of prepared sample is introduced into the ion chromatograph Anions are identified based on their retention times as compared to those of known standards Quantification is accomplished by measuring the peak response and comparing it to a calibration curve generated from known standards

The pH of all samples were tested with pH paper QC consisted of initial CCV and LCS which also serve as initial calibration duplicate analysis for every 10 samples and closing CCV A certified thermometer was used to check the ambient temperature

No additional analytical or quality issues were noted other than those described above or in the DefinitionsGlossary page

12302019Page 9 of 706104

QC Association SummaryJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

GCMS VOA

Prep Batch 35956

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air MeOH Prep140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17557-2 - DL Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17557-3 - DL Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air MeOH Prep140-17557-4 - DL Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air MeOH Prep140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air MeOH Prep140-17557-6 - DL Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH Prep140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH PrepMB 140-359562-A Method Blank TotalNA

Air MeOH PrepLCS 140-359561-A Lab Control Sample TotalNA

Air MeOH Prep140-17557-2 MS Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17557-2 MSD Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Analysis Batch 35964

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8260B 35956140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 8260B 35956140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 8260B 35956140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 8260B 35956140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 8260B 35956140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 8260B 35956140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 8260B 35956MB 140-359562-A Method Blank TotalNA

Air 8260B 35956LCS 140-359561-A Lab Control Sample TotalNA

Air 8260B 35956LCS 140-359561-A Lab Control Sample TotalNA

Analysis Batch 35990

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8260B 35956140-17557-2 - DL Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 8260B 35956140-17557-3 - DL Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 8260B 35956140-17557-4 - DL Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 8260B 35956140-17557-6 - DL Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 8260B 35956140-17557-2 MS Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 8260B 35956140-17557-2 MSD Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

HPLCIC

Prep Batch 35956

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air MeOH Prep140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air MeOH Prep140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air MeOH Prep140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH PrepMB 140-3595619-A Method Blank TotalNA

Air MeOH PrepMB 140-3595619-B Method Blank TotalNA

Air MeOH PrepLCS 140-3595620-A Lab Control Sample TotalNA

Air MeOH PrepLCS 140-3595620-B Lab Control Sample TotalNA

Air MeOH PrepLCSD 140-3595621-A Lab Control Sample Dup TotalNA

Eurofins TestAmerica Knoxville

12302019Page 10 of 706105

QC Association SummaryJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

HPLCIC (Continued)

Prep Batch 35956 (Continued)

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH PrepLCSD 140-3595621-B Lab Control Sample Dup TotalNA

Air MeOH Prep140-17557-2 MS Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17557-2 MSD Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Prep Batch 35976

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 5050 35956140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 5050 35956140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 5050 35956140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 5050 35956140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 5050 35956140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 5050 35956140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 5050 35956MB 140-3595619-B Method Blank TotalNA

Air 5050 35956LCS 140-3595620-B Lab Control Sample TotalNA

Air 5050 35956LCSD 140-3595621-B Lab Control Sample Dup TotalNA

Air 5050 35956140-17557-2 MS Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 5050 35956140-17557-2 MSD Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Analysis Batch 36294

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35976140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9056 35976140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35976140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9056 35976140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9056 35976140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9056 35976140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9056 35976MB 140-3595619-B Method Blank TotalNA

Air 9056 35976LCS 140-3595620-B Lab Control Sample TotalNA

Air 9056 35976LCSD 140-3595621-B Lab Control Sample Dup TotalNA

Air 9056 35976140-17557-2 MS Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35976140-17557-2 MSD Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Analysis Batch 36325

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35956140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9056 35956140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35956140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9056 35956140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9056 35956140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9056 35956140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9056 35956MB 140-3595619-A Method Blank TotalNA

Air 9056 35956LCS 140-3595620-A Lab Control Sample TotalNA

Air 9056 35956LCSD 140-3595621-A Lab Control Sample Dup TotalNA

Air 9056 35956140-17557-2 MS Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35956140-17557-2 MSD Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

General Chemistry

Analysis Batch 36156

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9041A140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Eurofins TestAmerica Knoxville

12302019Page 11 of 706106

QC Association SummaryJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

General Chemistry (Continued)

Analysis Batch 36156 (Continued)

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9041A140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9041A140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9041A140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9041A140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9041A140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9041ALCS 140-361562 Lab Control Sample TotalNA

Air 9041A140-17557-1 DU Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Eurofins TestAmerica Knoxville

12302019Page 12 of 706107

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-1Client Sample ID Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 315 415 ugSample 121019 0947 121019 2258 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

629 629 ugSample 121019 0947 121019 2258 111133-Pentafluorobutane ND

315 453 ugSample 121019 0947 121019 2258 1111-Trichloroethane ND

629 125 ugSample 121019 0947 121019 2258 1111-Trifluoro-22-dichloroethane ND

629 629 ugSample 121019 0947 121019 2258 1111-Trifluoroethane ND

315 604 ugSample 121019 0947 121019 2258 11122-Tetrachloroethane ND

629 352 ugSample 121019 0947 121019 2258 1112-Trichloro-122-trifluoroethane ND

629 629 ugSample 121019 0947 121019 2258 1112-trichloro-1-fluoroethane ND

315 327 ugSample 121019 0947 121019 2258 1112-Trichloroethane ND

629 315 ugSample 121019 0947 121019 2258 111-Dichloro-1-fluoroethane ND

629 629 ugSample 121019 0947 121019 2258 111-dichloro-22-difluoroethane ND

629 629 ugSample 121019 0947 121019 2258 111-dichloro-22-difluoroethene ND

315 378 ugSample 121019 0947 121019 2258 111-Dichloroethane ND

315 466 ugSample 121019 0947 121019 2258 111-Dichloroethene ND

315 340 ugSample 121019 0947 121019 2258 111-Dichloropropene ND

629 629 ugSample 121019 0947 121019 2258 111-Difluoroethene ND

629 629 ugSample 121019 0947 121019 2258 1122-trichloro-11-difluoroethane ND

315 101 ugSample 121019 0947 121019 2258 1123-Trichlorobenzene ND

315 780 ugSample 121019 0947 121019 2258 1123-Trichloropropane ND

315 106 ugSample 121019 0947 121019 2258 1124-Trichlorobenzene ND

315 654 ugSample 121019 0947 121019 2258 1124-Trimethylbenzene ND

629 111 ugSample 121019 0947 121019 2258 112-Dibromo-3-Chloropropane ND

315 415 ugSample 121019 0947 121019 2258 112-Dibromoethane (EDB) ND

629 629 ugSample 121019 0947 121019 2258 112-dichloro-11-difluoroethane ND

315 554 ugSample 121019 0947 121019 2258 112-Dichlorobenzene ND

315 529 ugSample 121019 0947 121019 2258 112-Dichloroethane ND

315 315 ugSample 121019 0947 121019 2258 112-Dichloropropane ND

315 654 ugSample 121019 0947 121019 2258 1135-Trimethylbenzene ND

315 541 ugSample 121019 0947 121019 2258 113-Dichlorobenzene ND

315 352 ugSample 121019 0947 121019 2258 113-Dichloropropane ND

315 629 ugSample 121019 0947 121019 2258 114-Dichlorobenzene ND

629 642 ugSample 121019 0947 121019 2258 11-Chloro-11-difluoroethane ND

629 629 ugSample 121019 0947 121019 2258 122-dichloro-11-difluoroethylmethyl

ether

ND

315 919 ugSample 121019 0947 121019 2258 122-Dichloropropane ND

126 201 ugSample 121019 0947 121019 2258 12-Butanone (MEK) ND

629 931 ugSample 121019 0947 121019 2258 12-chloro-111444-hexafluoro-2-but

ene

ND

629 629 ugSample 121019 0947 121019 2258 12-Chloro-111-Trifluoroethane ND

315 592 ugSample 121019 0947 121019 2258 12-Chlorotoluene ND

126 289 ugSample 121019 0947 121019 2258 12-Hexanone ND

275 275 ugSample 121019 0947 121019 2258 12-MTP as HFPO 1460

315 654 ugSample 121019 0947 121019 2258 14-Chlorotoluene ND

315 843 ugSample 121019 0947 121019 2258 14-Isopropyltoluene ND

126 201 ugSample 121019 0947 121019 2258 14-Methyl-2-pentanone (MIBK) ND

126 743 ugSample 121019 0947 121019 2258 1Acetone ND

315 604 ugSample 121019 0947 121019 2258 1Benzene ND

315 441 ugSample 121019 0947 121019 2258 1Bromobenzene ND

Eurofins TestAmerica Knoxville

12302019Page 13 of 706108

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-1Client Sample ID Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromochloromethane ND 315 705 ugSample 121019 0947 121019 2258 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

315 541 ugSample 121019 0947 121019 2258 1Bromodichloromethane ND

315 957 ugSample 121019 0947 121019 2258 1Bromoform ND

629 365 ugSample 121019 0947 121019 2258 1Bromomethane ND

315 780 ugSample 121019 0947 121019 2258 1Carbon disulfide ND

315 415 ugSample 121019 0947 121019 2258 1Carbon tetrachloride ND

923 923 ugSample 121019 0947 121019 2258 1Carbonyl Difluoride ND

315 453 ugSample 121019 0947 121019 2258 1Chlorobenzene ND

315 680 ugSample 121019 0947 121019 2258 1Chlorodibromomethane ND

629 138 ugSample 121019 0947 121019 2258 1Chloroethane ND

315 365 ugSample 121019 0947 121019 2258 1Chloroform ND

629 262 ugSample 121019 0947 121019 2258 1Chloromethane ND

315 252 ugSample 121019 0947 121019 2258 1cis-12-Dichloroethene ND

315 541 ugSample 121019 0947 121019 2258 1cis-13-Dichloropropene ND

315 302 ugSample 121019 0947 121019 2258 1Dibromomethane ND

629 111 ugSample 121019 0947 121019 2258 1Dichlorodifluoromethane ND

315 516 ugSample 121019 0947 121019 2258 1Ethylbenzene ND

315 315 ugSample 121019 0947 121019 2258 1Heptafluoropropyl 1222-tetrafluoroethyl ether

149

315 831 ugSample 121019 0947 121019 2258 1Hexachlorobutadiene ND

302 302 ugSample 121019 0947 121019 2258 1HFPO dimer methyl ester as

HFPO-DA

ND

315 441 ugSample 121019 0947 121019 2258 1Isopropylbenzene ND

629 516 ugSample 121019 0947 121019 2258 1mp-Xylene ND

315 201 ugSample 121019 0947 121019 2258 1Methylene Chloride 373

315 151 ugSample 121019 0947 121019 2258 1Naphthalene ND

315 806 ugSample 121019 0947 121019 2258 1n-Butylbenzene ND

315 680 ugSample 121019 0947 121019 2258 1n-Propylbenzene ND

315 327 ugSample 121019 0947 121019 2258 1o-Xylene ND

315 617 ugSample 121019 0947 121019 2258 1sec-Butylbenzene ND

315 680 ugSample 121019 0947 121019 2258 1Styrene ND

315 554 ugSample 121019 0947 121019 2258 1tert-Butylbenzene ND

315 415 ugSample 121019 0947 121019 2258 1Tetrachloroethene ND

315 579 ugSample 121019 0947 121019 2258 1Toluene ND

315 327 ugSample 121019 0947 121019 2258 1trans-12-Dichloroethene ND

315 111 ugSample 121019 0947 121019 2258 1trans-13-Dichloropropene ND

315 227 ugSample 121019 0947 121019 2258 1Trichloroethene ND

629 604 ugSample 121019 0947 121019 2258 1Trichlorofluoromethane ND

629 151 ugSample 121019 0947 121019 2258 1Vinyl chloride ND

Unknown 318 T J ugSample 113 121019 0947 121019 2258 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1121019 2258121019 0947T JUnknown 626 ugSample 118

12-Dichloroethane-d4 (Surr) 121 70 - 160 121019 0947 121019 2258 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 106 121019 0947 121019 2258 157 - 152

Dibromofluoromethane (Surr) 109 121019 0947 121019 2258 162 - 134

Eurofins TestAmerica Knoxville

12302019Page 14 of 706109

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-1Client Sample ID Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)

Toluene-d8 (Surr) 89 71 - 139 121019 0947 121019 2258 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 98200 13400 6710 ugSample 121019 0947 122319 1201 2

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2770 1260 ugSample 121019 0947 122419 0117 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 40 HF SU 121719 1337 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17557-2Client Sample ID Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 305 402 ugSample 121019 0947 121019 2234 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

610 610 ugSample 121019 0947 121019 2234 111133-Pentafluorobutane ND

305 439 ugSample 121019 0947 121019 2234 1111-Trichloroethane ND

610 121 ugSample 121019 0947 121019 2234 1111-Trifluoro-22-dichloroethane ND

610 610 ugSample 121019 0947 121019 2234 1111-Trifluoroethane ND

305 585 ugSample 121019 0947 121019 2234 11122-Tetrachloroethane ND

610 341 ugSample 121019 0947 121019 2234 1112-Trichloro-122-trifluoroethane ND

610 610 ugSample 121019 0947 121019 2234 1112-trichloro-1-fluoroethane ND

305 317 ugSample 121019 0947 121019 2234 1112-Trichloroethane ND

610 305 ugSample 121019 0947 121019 2234 111-Dichloro-1-fluoroethane ND

610 610 ugSample 121019 0947 121019 2234 111-dichloro-22-difluoroethane ND

610 610 ugSample 121019 0947 121019 2234 111-dichloro-22-difluoroethene ND

305 366 ugSample 121019 0947 121019 2234 111-Dichloroethane ND

305 451 ugSample 121019 0947 121019 2234 111-Dichloroethene ND

305 329 ugSample 121019 0947 121019 2234 111-Dichloropropene ND

610 610 ugSample 121019 0947 121019 2234 111-Difluoroethene ND

610 610 ugSample 121019 0947 121019 2234 1122-trichloro-11-difluoroethane ND

305 976 ugSample 121019 0947 121019 2234 1123-Trichlorobenzene ND

305 756 ugSample 121019 0947 121019 2234 1123-Trichloropropane ND

305 102 ugSample 121019 0947 121019 2234 1124-Trichlorobenzene ND

305 634 ugSample 121019 0947 121019 2234 1124-Trimethylbenzene ND

610 107 ugSample 121019 0947 121019 2234 112-Dibromo-3-Chloropropane ND

305 402 ugSample 121019 0947 121019 2234 112-Dibromoethane (EDB) ND

610 610 ugSample 121019 0947 121019 2234 112-dichloro-11-difluoroethane ND

305 537 ugSample 121019 0947 121019 2234 112-Dichlorobenzene ND

305 512 ugSample 121019 0947 121019 2234 112-Dichloroethane ND

305 305 ugSample 121019 0947 121019 2234 112-Dichloropropane ND

305 634 ugSample 121019 0947 121019 2234 1135-Trimethylbenzene ND

Eurofins TestAmerica Knoxville

12302019Page 15 of 706110

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-2Client Sample ID Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

13-Dichlorobenzene ND 305 524 ugSample 121019 0947 121019 2234 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

305 341 ugSample 121019 0947 121019 2234 113-Dichloropropane ND

305 610 ugSample 121019 0947 121019 2234 114-Dichlorobenzene ND

610 622 ugSample 121019 0947 121019 2234 11-Chloro-11-difluoroethane ND

610 610 ugSample 121019 0947 121019 2234 122-dichloro-11-difluoroethylmethyl

ether

ND

305 890 ugSample 121019 0947 121019 2234 122-Dichloropropane ND

122 195 ugSample 121019 0947 121019 2234 12-Butanone (MEK) ND

610 903 ugSample 121019 0947 121019 2234 12-chloro-111444-hexafluoro-2-but

ene

ND

610 610 ugSample 121019 0947 121019 2234 12-Chloro-111-Trifluoroethane ND

305 573 ugSample 121019 0947 121019 2234 12-Chlorotoluene ND

122 281 ugSample 121019 0947 121019 2234 12-Hexanone ND

266 266 ugSample 121019 0947 121019 2234 12-MTP as HFPO 2430 E

305 634 ugSample 121019 0947 121019 2234 14-Chlorotoluene ND

305 817 ugSample 121019 0947 121019 2234 14-Isopropyltoluene ND

122 195 ugSample 121019 0947 121019 2234 14-Methyl-2-pentanone (MIBK) ND

122 720 ugSample 121019 0947 121019 2234 1Acetone ND

305 585 ugSample 121019 0947 121019 2234 1Benzene ND

305 427 ugSample 121019 0947 121019 2234 1Bromobenzene ND

305 683 ugSample 121019 0947 121019 2234 1Bromochloromethane ND

305 524 ugSample 121019 0947 121019 2234 1Bromodichloromethane ND

305 927 ugSample 121019 0947 121019 2234 1Bromoform ND

610 354 ugSample 121019 0947 121019 2234 1Bromomethane ND

305 756 ugSample 121019 0947 121019 2234 1Carbon disulfide ND

305 402 ugSample 121019 0947 121019 2234 1Carbon tetrachloride ND

894 894 ugSample 121019 0947 121019 2234 1Carbonyl Difluoride ND

305 439 ugSample 121019 0947 121019 2234 1Chlorobenzene ND

305 659 ugSample 121019 0947 121019 2234 1Chlorodibromomethane ND

610 134 ugSample 121019 0947 121019 2234 1Chloroethane ND

305 354 ugSample 121019 0947 121019 2234 1Chloroform ND

610 254 ugSample 121019 0947 121019 2234 1Chloromethane ND

305 244 ugSample 121019 0947 121019 2234 1cis-12-Dichloroethene ND

305 524 ugSample 121019 0947 121019 2234 1cis-13-Dichloropropene ND

305 293 ugSample 121019 0947 121019 2234 1Dibromomethane ND

610 107 ugSample 121019 0947 121019 2234 1Dichlorodifluoromethane ND

305 500 ugSample 121019 0947 121019 2234 1Ethylbenzene ND

305 305 ugSample 121019 0947 121019 2234 1Heptafluoropropyl 1222-tetrafluoroethyl ether

953

305 805 ugSample 121019 0947 121019 2234 1Hexachlorobutadiene ND

293 293 ugSample 121019 0947 121019 2234 1HFPO dimer methyl ester as

HFPO-DA

ND

305 427 ugSample 121019 0947 121019 2234 1Isopropylbenzene ND

610 500 ugSample 121019 0947 121019 2234 1mp-Xylene ND

305 195 ugSample 121019 0947 121019 2234 1Methylene Chloride 211 J

305 146 ugSample 121019 0947 121019 2234 1Naphthalene ND

305 781 ugSample 121019 0947 121019 2234 1n-Butylbenzene ND

305 659 ugSample 121019 0947 121019 2234 1n-Propylbenzene ND

Eurofins TestAmerica Knoxville

12302019Page 16 of 706111

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-2Client Sample ID Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

o-Xylene ND 305 317 ugSample 121019 0947 121019 2234 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

305 598 ugSample 121019 0947 121019 2234 1sec-Butylbenzene ND

305 659 ugSample 121019 0947 121019 2234 1Styrene ND

305 537 ugSample 121019 0947 121019 2234 1tert-Butylbenzene ND

305 402 ugSample 121019 0947 121019 2234 1Tetrachloroethene ND

305 561 ugSample 121019 0947 121019 2234 1Toluene ND

305 317 ugSample 121019 0947 121019 2234 1trans-12-Dichloroethene ND

305 107 ugSample 121019 0947 121019 2234 1trans-13-Dichloropropene ND

305 220 ugSample 121019 0947 121019 2234 1Trichloroethene ND

610 585 ugSample 121019 0947 121019 2234 1Trichlorofluoromethane ND

610 146 ugSample 121019 0947 121019 2234 1Vinyl chloride ND

Unknown 596 T J ugSample 113 121019 0947 121019 2234 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1121019 2234121019 0947T JUnknown 1110 ugSample 118

1121019 2234121019 0947T JUnknown 351 ugSample 122

12-Dichloroethane-d4 (Surr) 121 70 - 160 121019 0947 121019 2234 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 107 121019 0947 121019 2234 157 - 152

Dibromofluoromethane (Surr) 106 121019 0947 121019 2234 162 - 134

Toluene-d8 (Surr) 89 121019 0947 121019 2234 171 - 139

Method 8260B - Volatile Organic Compounds (GCMS) - DLRL MDL

2-MTP as HFPO 2230 533 533 ugSample 121019 0947 121119 1629 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

12-Dichloroethane-d4 (Surr) 112 70 - 160 121019 0947 121119 1629 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 108 121019 0947 121119 1629 157 - 152

Dibromofluoromethane (Surr) 97 121019 0947 121119 1629 162 - 134

Toluene-d8 (Surr) 96 121019 0947 121119 1629 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 32600 6500 3250 ugSample 121019 0947 121919 2322 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2680 1220 ugSample 121019 0947 122419 0140 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 40 HF SU 121719 1337 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Eurofins TestAmerica Knoxville

12302019Page 17 of 706112

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-3Client Sample ID Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 304 401 ugSample 121019 0947 121019 2209 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

608 608 ugSample 121019 0947 121019 2209 111133-Pentafluorobutane ND

304 438 ugSample 121019 0947 121019 2209 1111-Trichloroethane ND

608 120 ugSample 121019 0947 121019 2209 1111-Trifluoro-22-dichloroethane ND

608 608 ugSample 121019 0947 121019 2209 1111-Trifluoroethane ND

304 583 ugSample 121019 0947 121019 2209 11122-Tetrachloroethane ND

608 340 ugSample 121019 0947 121019 2209 1112-Trichloro-122-trifluoroethane ND

608 608 ugSample 121019 0947 121019 2209 1112-trichloro-1-fluoroethane ND

304 316 ugSample 121019 0947 121019 2209 1112-Trichloroethane ND

608 304 ugSample 121019 0947 121019 2209 111-Dichloro-1-fluoroethane ND

608 608 ugSample 121019 0947 121019 2209 111-dichloro-22-difluoroethane ND

608 608 ugSample 121019 0947 121019 2209 111-dichloro-22-difluoroethene ND

304 365 ugSample 121019 0947 121019 2209 111-Dichloroethane ND

304 450 ugSample 121019 0947 121019 2209 111-Dichloroethene ND

304 328 ugSample 121019 0947 121019 2209 111-Dichloropropene ND

608 608 ugSample 121019 0947 121019 2209 111-Difluoroethene ND

608 608 ugSample 121019 0947 121019 2209 1122-trichloro-11-difluoroethane ND

304 972 ugSample 121019 0947 121019 2209 1123-Trichlorobenzene ND

304 753 ugSample 121019 0947 121019 2209 1123-Trichloropropane ND

304 102 ugSample 121019 0947 121019 2209 1124-Trichlorobenzene ND

304 632 ugSample 121019 0947 121019 2209 1124-Trimethylbenzene ND

608 107 ugSample 121019 0947 121019 2209 112-Dibromo-3-Chloropropane ND

304 401 ugSample 121019 0947 121019 2209 112-Dibromoethane (EDB) ND

608 608 ugSample 121019 0947 121019 2209 112-dichloro-11-difluoroethane ND

304 535 ugSample 121019 0947 121019 2209 112-Dichlorobenzene ND

304 510 ugSample 121019 0947 121019 2209 112-Dichloroethane ND

304 304 ugSample 121019 0947 121019 2209 112-Dichloropropane ND

304 632 ugSample 121019 0947 121019 2209 1135-Trimethylbenzene ND

304 523 ugSample 121019 0947 121019 2209 113-Dichlorobenzene ND

304 340 ugSample 121019 0947 121019 2209 113-Dichloropropane ND

304 608 ugSample 121019 0947 121019 2209 114-Dichlorobenzene ND

608 620 ugSample 121019 0947 121019 2209 11-Chloro-11-difluoroethane ND

608 608 ugSample 121019 0947 121019 2209 122-dichloro-11-difluoroethylmethyl

ether

ND

304 887 ugSample 121019 0947 121019 2209 122-Dichloropropane ND

122 194 ugSample 121019 0947 121019 2209 12-Butanone (MEK) ND

608 899 ugSample 121019 0947 121019 2209 12-chloro-111444-hexafluoro-2-but

ene

ND

608 608 ugSample 121019 0947 121019 2209 12-Chloro-111-Trifluoroethane ND

304 571 ugSample 121019 0947 121019 2209 12-Chlorotoluene ND

122 280 ugSample 121019 0947 121019 2209 12-Hexanone ND

266 266 ugSample 121019 0947 121019 2209 12-MTP as HFPO 2130 E

304 632 ugSample 121019 0947 121019 2209 14-Chlorotoluene ND

304 814 ugSample 121019 0947 121019 2209 14-Isopropyltoluene ND

122 194 ugSample 121019 0947 121019 2209 14-Methyl-2-pentanone (MIBK) ND

122 717 ugSample 121019 0947 121019 2209 1Acetone ND

304 583 ugSample 121019 0947 121019 2209 1Benzene ND

304 425 ugSample 121019 0947 121019 2209 1Bromobenzene ND

Eurofins TestAmerica Knoxville

12302019Page 18 of 706113

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-3Client Sample ID Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromochloromethane ND 304 681 ugSample 121019 0947 121019 2209 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

304 523 ugSample 121019 0947 121019 2209 1Bromodichloromethane ND

304 924 ugSample 121019 0947 121019 2209 1Bromoform ND

608 352 ugSample 121019 0947 121019 2209 1Bromomethane ND

304 753 ugSample 121019 0947 121019 2209 1Carbon disulfide ND

304 401 ugSample 121019 0947 121019 2209 1Carbon tetrachloride ND

894 894 ugSample 121019 0947 121019 2209 1Carbonyl Difluoride ND

304 438 ugSample 121019 0947 121019 2209 1Chlorobenzene ND

304 656 ugSample 121019 0947 121019 2209 1Chlorodibromomethane ND

608 134 ugSample 121019 0947 121019 2209 1Chloroethane ND

304 352 ugSample 121019 0947 121019 2209 1Chloroform ND

608 253 ugSample 121019 0947 121019 2209 1Chloromethane ND

304 243 ugSample 121019 0947 121019 2209 1cis-12-Dichloroethene ND

304 523 ugSample 121019 0947 121019 2209 1cis-13-Dichloropropene ND

304 292 ugSample 121019 0947 121019 2209 1Dibromomethane ND

608 107 ugSample 121019 0947 121019 2209 1Dichlorodifluoromethane ND

304 498 ugSample 121019 0947 121019 2209 1Ethylbenzene ND

304 304 ugSample 121019 0947 121019 2209 1Heptafluoropropyl 1222-tetrafluoroethyl ether

334

304 802 ugSample 121019 0947 121019 2209 1Hexachlorobutadiene ND

292 292 ugSample 121019 0947 121019 2209 1HFPO dimer methyl ester as

HFPO-DA

ND

304 425 ugSample 121019 0947 121019 2209 1Isopropylbenzene ND

608 498 ugSample 121019 0947 121019 2209 1mp-Xylene ND

304 194 ugSample 121019 0947 121019 2209 1Methylene Chloride 202 J

304 146 ugSample 121019 0947 121019 2209 1Naphthalene ND

304 778 ugSample 121019 0947 121019 2209 1n-Butylbenzene ND

304 656 ugSample 121019 0947 121019 2209 1n-Propylbenzene ND

304 316 ugSample 121019 0947 121019 2209 1o-Xylene ND

304 595 ugSample 121019 0947 121019 2209 1sec-Butylbenzene ND

304 656 ugSample 121019 0947 121019 2209 1Styrene ND

304 535 ugSample 121019 0947 121019 2209 1tert-Butylbenzene ND

304 401 ugSample 121019 0947 121019 2209 1Tetrachloroethene ND

304 559 ugSample 121019 0947 121019 2209 1Toluene ND

304 316 ugSample 121019 0947 121019 2209 1trans-12-Dichloroethene ND

304 107 ugSample 121019 0947 121019 2209 1trans-13-Dichloropropene ND

304 219 ugSample 121019 0947 121019 2209 1Trichloroethene ND

608 583 ugSample 121019 0947 121019 2209 1Trichlorofluoromethane ND

608 146 ugSample 121019 0947 121019 2209 1Vinyl chloride ND

Unknown 411 T J ugSample 113 121019 0947 121019 2209 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1121019 2209121019 0947T JUnknown 747 ugSample 118

12-Dichloroethane-d4 (Surr) 114 70 - 160 121019 0947 121019 2209 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 107 121019 0947 121019 2209 157 - 152

Dibromofluoromethane (Surr) 103 121019 0947 121019 2209 162 - 134

Eurofins TestAmerica Knoxville

12302019Page 19 of 706114

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-3Client Sample ID Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)

Toluene-d8 (Surr) 92 71 - 139 121019 0947 121019 2209 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Method 8260B - Volatile Organic Compounds (GCMS) - DLRL MDL

2-MTP as HFPO 1970 531 531 ugSample 121019 0947 121119 1653 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

12-Dichloroethane-d4 (Surr) 110 70 - 160 121019 0947 121119 1653 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 108 121019 0947 121119 1653 157 - 152

Dibromofluoromethane (Surr) 98 121019 0947 121119 1653 162 - 134

Toluene-d8 (Surr) 95 121019 0947 121119 1653 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 13600 6480 3240 ugSample 121019 0947 122019 0030 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2670 1220 ugSample 121019 0947 122419 0248 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 50 HF SU 121719 1337 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17557-4Client Sample ID Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 297 393 ugSample 121019 0947 121019 2145 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

595 595 ugSample 121019 0947 121019 2145 111133-Pentafluorobutane ND

297 428 ugSample 121019 0947 121019 2145 1111-Trichloroethane ND

595 118 ugSample 121019 0947 121019 2145 1111-Trifluoro-22-dichloroethane ND

595 595 ugSample 121019 0947 121019 2145 1111-Trifluoroethane ND

297 571 ugSample 121019 0947 121019 2145 11122-Tetrachloroethane ND

595 333 ugSample 121019 0947 121019 2145 1112-Trichloro-122-trifluoroethane ND

595 595 ugSample 121019 0947 121019 2145 1112-trichloro-1-fluoroethane ND

297 309 ugSample 121019 0947 121019 2145 1112-Trichloroethane ND

595 297 ugSample 121019 0947 121019 2145 111-Dichloro-1-fluoroethane ND

595 595 ugSample 121019 0947 121019 2145 111-dichloro-22-difluoroethane ND

595 595 ugSample 121019 0947 121019 2145 111-dichloro-22-difluoroethene ND

297 357 ugSample 121019 0947 121019 2145 111-Dichloroethane ND

297 440 ugSample 121019 0947 121019 2145 111-Dichloroethene ND

297 321 ugSample 121019 0947 121019 2145 111-Dichloropropene ND

595 595 ugSample 121019 0947 121019 2145 111-Difluoroethene ND

595 595 ugSample 121019 0947 121019 2145 1122-trichloro-11-difluoroethane ND

297 952 ugSample 121019 0947 121019 2145 1123-Trichlorobenzene ND

297 738 ugSample 121019 0947 121019 2145 1123-Trichloropropane ND

Eurofins TestAmerica Knoxville

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Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-4Client Sample ID Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

124-Trichlorobenzene ND 297 100 ugSample 121019 0947 121019 2145 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

297 619 ugSample 121019 0947 121019 2145 1124-Trimethylbenzene ND

595 105 ugSample 121019 0947 121019 2145 112-Dibromo-3-Chloropropane ND

297 393 ugSample 121019 0947 121019 2145 112-Dibromoethane (EDB) ND

595 595 ugSample 121019 0947 121019 2145 112-dichloro-11-difluoroethane ND

297 524 ugSample 121019 0947 121019 2145 112-Dichlorobenzene ND

297 500 ugSample 121019 0947 121019 2145 112-Dichloroethane ND

297 297 ugSample 121019 0947 121019 2145 112-Dichloropropane ND

297 619 ugSample 121019 0947 121019 2145 1135-Trimethylbenzene ND

297 512 ugSample 121019 0947 121019 2145 113-Dichlorobenzene ND

297 333 ugSample 121019 0947 121019 2145 113-Dichloropropane ND

297 595 ugSample 121019 0947 121019 2145 114-Dichlorobenzene ND

595 607 ugSample 121019 0947 121019 2145 11-Chloro-11-difluoroethane ND

595 595 ugSample 121019 0947 121019 2145 122-dichloro-11-difluoroethylmethyl

ether

ND

297 869 ugSample 121019 0947 121019 2145 122-Dichloropropane ND

119 190 ugSample 121019 0947 121019 2145 12-Butanone (MEK) ND

595 881 ugSample 121019 0947 121019 2145 12-chloro-111444-hexafluoro-2-but

ene

ND

595 595 ugSample 121019 0947 121019 2145 12-Chloro-111-Trifluoroethane ND

297 559 ugSample 121019 0947 121019 2145 12-Chlorotoluene ND

119 274 ugSample 121019 0947 121019 2145 12-Hexanone ND

259 259 ugSample 121019 0947 121019 2145 12-MTP as HFPO 2560 E

297 619 ugSample 121019 0947 121019 2145 14-Chlorotoluene ND

297 797 ugSample 121019 0947 121019 2145 14-Isopropyltoluene ND

119 190 ugSample 121019 0947 121019 2145 14-Methyl-2-pentanone (MIBK) ND

119 702 ugSample 121019 0947 121019 2145 1Acetone ND

297 571 ugSample 121019 0947 121019 2145 1Benzene ND

297 416 ugSample 121019 0947 121019 2145 1Bromobenzene ND

297 666 ugSample 121019 0947 121019 2145 1Bromochloromethane ND

297 512 ugSample 121019 0947 121019 2145 1Bromodichloromethane ND

297 904 ugSample 121019 0947 121019 2145 1Bromoform ND

595 345 ugSample 121019 0947 121019 2145 1Bromomethane ND

297 738 ugSample 121019 0947 121019 2145 1Carbon disulfide ND

297 393 ugSample 121019 0947 121019 2145 1Carbon tetrachloride ND

872 872 ugSample 121019 0947 121019 2145 1Carbonyl Difluoride ND

297 428 ugSample 121019 0947 121019 2145 1Chlorobenzene ND

297 643 ugSample 121019 0947 121019 2145 1Chlorodibromomethane ND

595 131 ugSample 121019 0947 121019 2145 1Chloroethane ND

297 345 ugSample 121019 0947 121019 2145 1Chloroform ND

595 247 ugSample 121019 0947 121019 2145 1Chloromethane ND

297 238 ugSample 121019 0947 121019 2145 1cis-12-Dichloroethene ND

297 512 ugSample 121019 0947 121019 2145 1cis-13-Dichloropropene ND

297 286 ugSample 121019 0947 121019 2145 1Dibromomethane ND

595 105 ugSample 121019 0947 121019 2145 1Dichlorodifluoromethane ND

297 488 ugSample 121019 0947 121019 2145 1Ethylbenzene ND

297 297 ugSample 121019 0947 121019 2145 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

Eurofins TestAmerica Knoxville

12302019Page 21 of 706116

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-4Client Sample ID Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Hexachlorobutadiene ND 297 785 ugSample 121019 0947 121019 2145 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

285 285 ugSample 121019 0947 121019 2145 1HFPO dimer methyl ester as

HFPO-DA

ND

297 416 ugSample 121019 0947 121019 2145 1Isopropylbenzene ND

595 488 ugSample 121019 0947 121019 2145 1mp-Xylene ND

297 190 ugSample 121019 0947 121019 2145 1Methylene Chloride 200 J

297 143 ugSample 121019 0947 121019 2145 1Naphthalene ND

297 762 ugSample 121019 0947 121019 2145 1n-Butylbenzene ND

297 643 ugSample 121019 0947 121019 2145 1n-Propylbenzene ND

297 309 ugSample 121019 0947 121019 2145 1o-Xylene ND

297 583 ugSample 121019 0947 121019 2145 1sec-Butylbenzene ND

297 643 ugSample 121019 0947 121019 2145 1Styrene ND

297 524 ugSample 121019 0947 121019 2145 1tert-Butylbenzene ND

297 393 ugSample 121019 0947 121019 2145 1Tetrachloroethene ND

297 547 ugSample 121019 0947 121019 2145 1Toluene ND

297 309 ugSample 121019 0947 121019 2145 1trans-12-Dichloroethene ND

297 105 ugSample 121019 0947 121019 2145 1trans-13-Dichloropropene ND

297 214 ugSample 121019 0947 121019 2145 1Trichloroethene ND

595 571 ugSample 121019 0947 121019 2145 1Trichlorofluoromethane ND

595 143 ugSample 121019 0947 121019 2145 1Vinyl chloride ND

Butanoic acid heptafluoro- sodium

salt

545 T J N ugSample 113 2218-54-4 121019 0947 121019 2145 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1121019 2145121019 0947T J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-8761 ugSample 118

12-Dichloroethane-d4 (Surr) 118 70 - 160 121019 0947 121019 2145 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 110 121019 0947 121019 2145 157 - 152

Dibromofluoromethane (Surr) 107 121019 0947 121019 2145 162 - 134

Toluene-d8 (Surr) 91 121019 0947 121019 2145 171 - 139

Method 8260B - Volatile Organic Compounds (GCMS) - DLRL MDL

2-MTP as HFPO 2330 650 650 ugSample 121019 0947 121119 1718 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

12-Dichloroethane-d4 (Surr) 112 70 - 160 121019 0947 121119 1718 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 107 121019 0947 121119 1718 157 - 152

Dibromofluoromethane (Surr) 98 121019 0947 121119 1718 162 - 134

Toluene-d8 (Surr) 95 121019 0947 121119 1718 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 5730 J 6350 3170 ugSample 121019 0947 122019 0053 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2620 1190 ugSample 121019 0947 122419 0356 20Hydrogen Fluoride ND

Eurofins TestAmerica Knoxville

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Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-4Client Sample ID Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

General ChemistryRL MDL

pH 50 HF SU 121719 1337 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17557-5Client Sample ID Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 310 409 ugSample 121019 0947 121019 2120 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

619 619 ugSample 121019 0947 121019 2120 111133-Pentafluorobutane ND

310 446 ugSample 121019 0947 121019 2120 1111-Trichloroethane ND

619 123 ugSample 121019 0947 121019 2120 1111-Trifluoro-22-dichloroethane ND

619 619 ugSample 121019 0947 121019 2120 1111-Trifluoroethane ND

310 595 ugSample 121019 0947 121019 2120 11122-Tetrachloroethane ND

619 347 ugSample 121019 0947 121019 2120 1112-Trichloro-122-trifluoroethane ND

619 619 ugSample 121019 0947 121019 2120 1112-trichloro-1-fluoroethane ND

310 322 ugSample 121019 0947 121019 2120 1112-Trichloroethane ND

619 310 ugSample 121019 0947 121019 2120 111-Dichloro-1-fluoroethane ND

619 619 ugSample 121019 0947 121019 2120 111-dichloro-22-difluoroethane ND

619 619 ugSample 121019 0947 121019 2120 111-dichloro-22-difluoroethene ND

310 372 ugSample 121019 0947 121019 2120 111-Dichloroethane ND

310 458 ugSample 121019 0947 121019 2120 111-Dichloroethene ND

310 334 ugSample 121019 0947 121019 2120 111-Dichloropropene ND

619 619 ugSample 121019 0947 121019 2120 111-Difluoroethene ND

619 619 ugSample 121019 0947 121019 2120 1122-trichloro-11-difluoroethane ND

310 991 ugSample 121019 0947 121019 2120 1123-Trichlorobenzene ND

310 768 ugSample 121019 0947 121019 2120 1123-Trichloropropane ND

310 104 ugSample 121019 0947 121019 2120 1124-Trichlorobenzene ND

310 644 ugSample 121019 0947 121019 2120 1124-Trimethylbenzene ND

619 109 ugSample 121019 0947 121019 2120 112-Dibromo-3-Chloropropane ND

310 409 ugSample 121019 0947 121019 2120 112-Dibromoethane (EDB) ND

619 619 ugSample 121019 0947 121019 2120 112-dichloro-11-difluoroethane ND

310 545 ugSample 121019 0947 121019 2120 112-Dichlorobenzene ND

310 520 ugSample 121019 0947 121019 2120 112-Dichloroethane ND

310 310 ugSample 121019 0947 121019 2120 112-Dichloropropane ND

310 644 ugSample 121019 0947 121019 2120 1135-Trimethylbenzene ND

310 533 ugSample 121019 0947 121019 2120 113-Dichlorobenzene ND

310 347 ugSample 121019 0947 121019 2120 113-Dichloropropane ND

310 619 ugSample 121019 0947 121019 2120 114-Dichlorobenzene ND

619 632 ugSample 121019 0947 121019 2120 11-Chloro-11-difluoroethane ND

619 619 ugSample 121019 0947 121019 2120 122-dichloro-11-difluoroethylmethyl

ether

ND

310 904 ugSample 121019 0947 121019 2120 122-Dichloropropane ND

124 198 ugSample 121019 0947 121019 2120 12-Butanone (MEK) ND

619 917 ugSample 121019 0947 121019 2120 12-chloro-111444-hexafluoro-2-but

ene

ND

Eurofins TestAmerica Knoxville

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Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-5Client Sample ID Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

2-Chloro-111-Trifluoroethane ND 619 619 ugSample 121019 0947 121019 2120 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

310 582 ugSample 121019 0947 121019 2120 12-Chlorotoluene ND

124 285 ugSample 121019 0947 121019 2120 12-Hexanone ND

271 271 ugSample 121019 0947 121019 2120 12-MTP as HFPO 2070

310 644 ugSample 121019 0947 121019 2120 14-Chlorotoluene ND

310 830 ugSample 121019 0947 121019 2120 14-Isopropyltoluene ND

124 198 ugSample 121019 0947 121019 2120 14-Methyl-2-pentanone (MIBK) ND

124 731 ugSample 121019 0947 121019 2120 1Acetone ND

310 595 ugSample 121019 0947 121019 2120 1Benzene ND

310 434 ugSample 121019 0947 121019 2120 1Bromobenzene ND

310 694 ugSample 121019 0947 121019 2120 1Bromochloromethane ND

310 533 ugSample 121019 0947 121019 2120 1Bromodichloromethane ND

310 941 ugSample 121019 0947 121019 2120 1Bromoform ND

619 359 ugSample 121019 0947 121019 2120 1Bromomethane ND

310 768 ugSample 121019 0947 121019 2120 1Carbon disulfide ND

310 409 ugSample 121019 0947 121019 2120 1Carbon tetrachloride ND

909 909 ugSample 121019 0947 121019 2120 1Carbonyl Difluoride ND

310 446 ugSample 121019 0947 121019 2120 1Chlorobenzene ND

310 669 ugSample 121019 0947 121019 2120 1Chlorodibromomethane ND

619 136 ugSample 121019 0947 121019 2120 1Chloroethane ND

310 359 ugSample 121019 0947 121019 2120 1Chloroform ND

619 258 ugSample 121019 0947 121019 2120 1Chloromethane ND

310 248 ugSample 121019 0947 121019 2120 1cis-12-Dichloroethene ND

310 533 ugSample 121019 0947 121019 2120 1cis-13-Dichloropropene ND

310 297 ugSample 121019 0947 121019 2120 1Dibromomethane ND

619 109 ugSample 121019 0947 121019 2120 1Dichlorodifluoromethane ND

310 508 ugSample 121019 0947 121019 2120 1Ethylbenzene ND

310 310 ugSample 121019 0947 121019 2120 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

310 818 ugSample 121019 0947 121019 2120 1Hexachlorobutadiene ND

297 297 ugSample 121019 0947 121019 2120 1HFPO dimer methyl ester as

HFPO-DA

ND

310 434 ugSample 121019 0947 121019 2120 1Isopropylbenzene ND

619 508 ugSample 121019 0947 121019 2120 1mp-Xylene ND

310 198 ugSample 121019 0947 121019 2120 1Methylene Chloride ND

310 149 ugSample 121019 0947 121019 2120 1Naphthalene ND

310 793 ugSample 121019 0947 121019 2120 1n-Butylbenzene ND

310 669 ugSample 121019 0947 121019 2120 1n-Propylbenzene ND

310 322 ugSample 121019 0947 121019 2120 1o-Xylene ND

310 607 ugSample 121019 0947 121019 2120 1sec-Butylbenzene ND

310 669 ugSample 121019 0947 121019 2120 1Styrene ND

310 545 ugSample 121019 0947 121019 2120 1tert-Butylbenzene ND

310 409 ugSample 121019 0947 121019 2120 1Tetrachloroethene ND

310 570 ugSample 121019 0947 121019 2120 1Toluene ND

310 322 ugSample 121019 0947 121019 2120 1trans-12-Dichloroethene ND

310 109 ugSample 121019 0947 121019 2120 1trans-13-Dichloropropene ND

310 223 ugSample 121019 0947 121019 2120 1Trichloroethene ND

619 595 ugSample 121019 0947 121019 2120 1Trichlorofluoromethane ND

Eurofins TestAmerica Knoxville

12302019Page 24 of 706119

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-5Client Sample ID Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Vinyl chloride ND 619 149 ugSample 121019 0947 121019 2120 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Propene hexafluoro- 445 T J N ugSample 113 116-15-4 121019 0947 121019 2120 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1121019 2120121019 0947T JUnknown 454 ugSample 118

12-Dichloroethane-d4 (Surr) 117 70 - 160 121019 0947 121019 2120 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 108 121019 0947 121019 2120 157 - 152

Dibromofluoromethane (Surr) 105 121019 0947 121019 2120 162 - 134

Toluene-d8 (Surr) 91 121019 0947 121019 2120 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 5710 J 6610 3300 ugSample 121019 0947 122019 0116 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2730 1240 ugSample 121019 0947 122419 0419 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 50 HF SU 121719 1337 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17557-6Client Sample ID Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 301 397 ugSample 121019 0947 121019 2056 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

601 601 ugSample 121019 0947 121019 2056 111133-Pentafluorobutane ND

301 433 ugSample 121019 0947 121019 2056 1111-Trichloroethane ND

601 119 ugSample 121019 0947 121019 2056 1111-Trifluoro-22-dichloroethane ND

601 601 ugSample 121019 0947 121019 2056 1111-Trifluoroethane ND

301 577 ugSample 121019 0947 121019 2056 11122-Tetrachloroethane ND

601 337 ugSample 121019 0947 121019 2056 1112-Trichloro-122-trifluoroethane ND

601 601 ugSample 121019 0947 121019 2056 1112-trichloro-1-fluoroethane ND

301 313 ugSample 121019 0947 121019 2056 1112-Trichloroethane ND

601 301 ugSample 121019 0947 121019 2056 111-Dichloro-1-fluoroethane ND

601 601 ugSample 121019 0947 121019 2056 111-dichloro-22-difluoroethane ND

601 601 ugSample 121019 0947 121019 2056 111-dichloro-22-difluoroethene ND

301 361 ugSample 121019 0947 121019 2056 111-Dichloroethane ND

301 445 ugSample 121019 0947 121019 2056 111-Dichloroethene ND

301 325 ugSample 121019 0947 121019 2056 111-Dichloropropene ND

601 601 ugSample 121019 0947 121019 2056 111-Difluoroethene ND

601 601 ugSample 121019 0947 121019 2056 1122-trichloro-11-difluoroethane ND

301 962 ugSample 121019 0947 121019 2056 1123-Trichlorobenzene ND

301 745 ugSample 121019 0947 121019 2056 1123-Trichloropropane ND

Eurofins TestAmerica Knoxville

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Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-6Client Sample ID Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

124-Trichlorobenzene ND 301 101 ugSample 121019 0947 121019 2056 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

301 625 ugSample 121019 0947 121019 2056 1124-Trimethylbenzene ND

601 106 ugSample 121019 0947 121019 2056 112-Dibromo-3-Chloropropane ND

301 397 ugSample 121019 0947 121019 2056 112-Dibromoethane (EDB) ND

601 601 ugSample 121019 0947 121019 2056 112-dichloro-11-difluoroethane ND

301 529 ugSample 121019 0947 121019 2056 112-Dichlorobenzene ND

301 505 ugSample 121019 0947 121019 2056 112-Dichloroethane ND

301 301 ugSample 121019 0947 121019 2056 112-Dichloropropane ND

301 625 ugSample 121019 0947 121019 2056 1135-Trimethylbenzene ND

301 517 ugSample 121019 0947 121019 2056 113-Dichlorobenzene ND

301 337 ugSample 121019 0947 121019 2056 113-Dichloropropane ND

301 601 ugSample 121019 0947 121019 2056 114-Dichlorobenzene ND

601 613 ugSample 121019 0947 121019 2056 11-Chloro-11-difluoroethane ND

601 601 ugSample 121019 0947 121019 2056 122-dichloro-11-difluoroethylmethyl

ether

ND

301 878 ugSample 121019 0947 121019 2056 122-Dichloropropane ND

120 192 ugSample 121019 0947 121019 2056 12-Butanone (MEK) ND

601 890 ugSample 121019 0947 121019 2056 12-chloro-111444-hexafluoro-2-but

ene

ND

601 601 ugSample 121019 0947 121019 2056 12-Chloro-111-Trifluoroethane ND

301 565 ugSample 121019 0947 121019 2056 12-Chlorotoluene ND

120 277 ugSample 121019 0947 121019 2056 12-Hexanone ND

263 263 ugSample 121019 0947 121019 2056 12-MTP as HFPO 2550 E

301 625 ugSample 121019 0947 121019 2056 14-Chlorotoluene ND

301 806 ugSample 121019 0947 121019 2056 14-Isopropyltoluene ND

120 192 ugSample 121019 0947 121019 2056 14-Methyl-2-pentanone (MIBK) ND

120 709 ugSample 121019 0947 121019 2056 1Acetone ND

301 577 ugSample 121019 0947 121019 2056 1Benzene ND

301 421 ugSample 121019 0947 121019 2056 1Bromobenzene ND

301 673 ugSample 121019 0947 121019 2056 1Bromochloromethane ND

301 517 ugSample 121019 0947 121019 2056 1Bromodichloromethane ND

301 914 ugSample 121019 0947 121019 2056 1Bromoform ND

601 349 ugSample 121019 0947 121019 2056 1Bromomethane ND

301 745 ugSample 121019 0947 121019 2056 1Carbon disulfide ND

301 397 ugSample 121019 0947 121019 2056 1Carbon tetrachloride ND

879 879 ugSample 121019 0947 121019 2056 1Carbonyl Difluoride ND

301 433 ugSample 121019 0947 121019 2056 1Chlorobenzene ND

301 649 ugSample 121019 0947 121019 2056 1Chlorodibromomethane ND

601 132 ugSample 121019 0947 121019 2056 1Chloroethane ND

301 349 ugSample 121019 0947 121019 2056 1Chloroform ND

601 250 ugSample 121019 0947 121019 2056 1Chloromethane ND

301 240 ugSample 121019 0947 121019 2056 1cis-12-Dichloroethene ND

301 517 ugSample 121019 0947 121019 2056 1cis-13-Dichloropropene ND

301 289 ugSample 121019 0947 121019 2056 1Dibromomethane ND

601 106 ugSample 121019 0947 121019 2056 1Dichlorodifluoromethane ND

301 493 ugSample 121019 0947 121019 2056 1Ethylbenzene ND

301 301 ugSample 121019 0947 121019 2056 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

Eurofins TestAmerica Knoxville

12302019Page 26 of 706121

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-6Client Sample ID Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Hexachlorobutadiene ND 301 794 ugSample 121019 0947 121019 2056 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

289 289 ugSample 121019 0947 121019 2056 1HFPO dimer methyl ester as

HFPO-DA

ND

301 421 ugSample 121019 0947 121019 2056 1Isopropylbenzene ND

601 493 ugSample 121019 0947 121019 2056 1mp-Xylene ND

301 192 ugSample 121019 0947 121019 2056 1Methylene Chloride ND

301 144 ugSample 121019 0947 121019 2056 1Naphthalene ND

301 770 ugSample 121019 0947 121019 2056 1n-Butylbenzene ND

301 649 ugSample 121019 0947 121019 2056 1n-Propylbenzene ND

301 313 ugSample 121019 0947 121019 2056 1o-Xylene ND

301 589 ugSample 121019 0947 121019 2056 1sec-Butylbenzene ND

301 649 ugSample 121019 0947 121019 2056 1Styrene ND

301 529 ugSample 121019 0947 121019 2056 1tert-Butylbenzene ND

301 397 ugSample 121019 0947 121019 2056 1Tetrachloroethene ND

301 553 ugSample 121019 0947 121019 2056 1Toluene ND

301 313 ugSample 121019 0947 121019 2056 1trans-12-Dichloroethene ND

301 106 ugSample 121019 0947 121019 2056 1trans-13-Dichloropropene ND

301 216 ugSample 121019 0947 121019 2056 1Trichloroethene ND

601 577 ugSample 121019 0947 121019 2056 1Trichlorofluoromethane ND

601 144 ugSample 121019 0947 121019 2056 1Vinyl chloride ND

Propene hexafluoro- 408 T J N ugSample 113 116-15-4 121019 0947 121019 2056 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1121019 2056121019 0947T JUnknown 418 ugSample 118

12-Dichloroethane-d4 (Surr) 116 70 - 160 121019 0947 121019 2056 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 121019 0947 121019 2056 157 - 152

Dibromofluoromethane (Surr) 104 121019 0947 121019 2056 162 - 134

Toluene-d8 (Surr) 92 121019 0947 121019 2056 171 - 139

Method 8260B - Volatile Organic Compounds (GCMS) - DLRL MDL

2-MTP as HFPO 2350 657 657 ugSample 121019 0947 121119 1742 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

12-Dichloroethane-d4 (Surr) 112 70 - 160 121019 0947 121119 1742 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 107 121019 0947 121119 1742 157 - 152

Dibromofluoromethane (Surr) 98 121019 0947 121119 1742 162 - 134

Toluene-d8 (Surr) 96 121019 0947 121119 1742 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 4990 J 6410 3210 ugSample 121019 0947 122019 0138 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2650 1200 ugSample 121019 0947 122419 0442 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 50 HF SU 121719 1339 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Eurofins TestAmerica Knoxville

12302019Page 27 of 706122

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17557-1ProjectSite VEN Stack - MM-18

Method 8260B - Volatile Organic Compounds (GCMS)Prep MeOH Prep

2501112-Tetrachloroethane ugSample

Analyte UnitsMDLRL

0330

50011133-Pentafluorobutane ugSample0500

250111-Trichloroethane ugSample0360

500111-Trifluoro-22-dichloroethane ugSample0990

500111-Trifluoroethane ugSample0500

2501122-Tetrachloroethane ugSample0480

500112-Trichloro-122-trifluoroethane ugSample0280

500112-trichloro-1-fluoroethane ugSample0500

250112-Trichloroethane ugSample0260

50011-Dichloro-1-fluoroethane ugSample250

50011-dichloro-22-difluoroethane ugSample0500

50011-dichloro-22-difluoroethene ugSample0500

25011-Dichloroethane ugSample0300

25011-Dichloroethene ugSample0370

25011-Dichloropropene ugSample0270

50011-Difluoroethene ugSample500

500122-trichloro-11-difluoroethane ugSample0500

250123-Trichlorobenzene ugSample0800

250123-Trichloropropane ugSample0620

250124-Trichlorobenzene ugSample0840

250124-Trimethylbenzene ugSample0520

50012-Dibromo-3-Chloropropane ugSample0880

25012-Dibromoethane (EDB) ugSample0330

50012-dichloro-11-difluoroethane ugSample0500

25012-Dichlorobenzene ugSample0440

25012-Dichloroethane ugSample0420

25012-Dichloropropane ugSample0250

250135-Trimethylbenzene ugSample0520

25013-Dichlorobenzene ugSample0430

25013-Dichloropropane ugSample0280

25014-Dichlorobenzene ugSample0500

5001-Chloro-11-difluoroethane ugSample0510

50022-dichloro-11-difluoroethylmethyl ether ugSample0500

25022-Dichloropropane ugSample0730

1002-Butanone (MEK) ugSample160

5002-chloro-111444-hexafluoro-2-butene ugSample0740

5002-Chloro-111-Trifluoroethane ugSample0500

2502-Chlorotoluene ugSample0470

1002-Hexanone ugSample230

2502-MTP as HFPO ugSample250

2504-Chlorotoluene ugSample0520

2504-Isopropyltoluene ugSample0670

1004-Methyl-2-pentanone (MIBK) ugSample160

100Acetone ugSample590

250Benzene ugSample0480

250Bromobenzene ugSample0350

250Bromochloromethane ugSample0560

250Bromodichloromethane ugSample0430

250Bromoform ugSample0760

500Bromomethane ugSample290

250Carbon disulfide ugSample0620

250Carbon tetrachloride ugSample0330

Eurofins TestAmerica Knoxville

12302019Page 28 of 706123

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17557-1ProjectSite VEN Stack - MM-18

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)Prep MeOH Prep

100Carbonyl Difluoride ugSample

Analyte UnitsMDLRL

100

250Chlorobenzene ugSample0360

250Chlorodibromomethane ugSample0540

500Chloroethane ugSample110

250Chloroform ugSample0290

500Chloromethane ugSample208

250cis-12-Dichloroethene ugSample0200

250cis-13-Dichloropropene ugSample0430

250Dibromomethane ugSample0240

500Dichlorodifluoromethane ugSample0880

250Ethylbenzene ugSample0410

250Heptafluoropropyl 1222-tetrafluoroethyl ether ugSample250

250Hexachlorobutadiene ugSample0660

250HFPO dimer methyl ester as HFPO-DA ugSample250

250Isopropylbenzene ugSample0350

500mp-Xylene ugSample0410

250Methylene Chloride ugSample160

250Naphthalene ugSample120

250n-Butylbenzene ugSample0640

250n-Propylbenzene ugSample0540

250o-Xylene ugSample0260

250sec-Butylbenzene ugSample0490

250Styrene ugSample0540

250tert-Butylbenzene ugSample0440

250Tetrachloroethene ugSample0330

250Toluene ugSample0460

250trans-12-Dichloroethene ugSample0260

250trans-13-Dichloropropene ugSample0880

250Trichloroethene ugSample0180

500Trichlorofluoromethane ugSample0480

500Vinyl chloride ugSample120

Method 9056 - Anions Ion ChromatographyPrep MeOH Prep

110Hydrogen Fluoride ugSample

Analyte UnitsMDLRL

500

1000Total Fluorine ugSample500

Eurofins TestAmerica Knoxville

12302019Page 29 of 706124

ANALYTICAL REPORTJob Number 140-17462-1

Job Description VEN MM-18 Field QC

Contract Number LBIO-67048

ForChemours Company FC LLC The

co AECOMSabre Building Suite 300

4051 Ogletown RoadNewark DE 19713

Attention Michael Aucoin

_____________________________________________

Approved for releaseCourtney M AdkinsProject Manager II12232019 302 PM

Courtney M Adkins Project Manager II5815 Middlebrook Pike Knoxville TN 37921

(865)291-3000 courtneyadkinstestamericainccom

12232019

This report may not be reproduced except in full and with written approval from the laboratory For questions please contact the Project Manager atthe e-mail address or telephone number listed on this page

The test results in this report relate only to the samples as received by the laboratory and will meet all requirements of the methodology with anyexceptions noted This report shall not be reproduced except in full without the express written approval of the laboratory All questions should bedirected to the Eurofins TestAmerica Project Manager

This report has been electronically signed and authorized by the signatory Electronic signature is intended to be the legally binding equivalent of atraditionally handwritten signature

Eurofins TestAmerica Knoxville

5815 Middlebrook Pike Knoxville TN 37921

Tel (865) 291-3000 Fax (865) 584-4315 wwwtestamericainccom

12232019Page 1 of 820125

Table of ContentsCover Title Page 1

Data Summaries 5

Definitions 5

Method Summary 6

Sample Summary 7

Case Narrative 8

QC Association 10

Client Sample Results 13

Default Detection Limits 35

Surrogate Summary 37

QC Sample Results 39

Chronicle 46

Certification Summary 54

Manual Integration Summary 56

Organic Sample Data 69

GCMS VOA 69

Method 8260B 69Method 8260B QC Summary 70Method 8260B Sample Data 83Standards Data 179

Method 8260B ICAL Data 179Method 8260B CCAL Data 281

Raw QC Data 329Method 8260B Tune Data 329Method 8260B Blank Data 345Method 8260B LCSLCSD Data 355

12232019Page 2 of 820126

Table of ContentsMethod 8260B MSMSD Data 368

Method 8260B Run Logs 376Method 8260B Prep Data 389

HPLCIC 392

Method 9056 392Method 9056 QC Summary 393Method 9056 Sample Data 396Standards Data 423

Method 9056 ICAL Data 423Method 9056 CCAL Data 450

Raw QC Data 493Method 9056 Blank Data 493Method 9056 LCSLCSD Data 519

Method 9056 Run Logs 525Method 9056 Prep Data 539

Method 9056A Total Halogens 541Method 9056A Total Halogens QC Summary 542Method 9056A Total Halogens Sample Data 545Standards Data 580

Method 9056A Total Halogens ICAL Data 580Method 9056A Total Halogens CCAL Data 605

Raw QC Data 624Method 9056A Total Halogens Blank Data 624Method 9056A Total Halogens LCSLCSD Data 641

Method 9056A Total Halogens Run Logs 649Method 9056A Total Halogens Prep Data 658

12232019Page 3 of 820127

Table of ContentsLCMS 662

Method DV-LC-0012 662Method DV-LC-0012 QC Summary 663Method DV-LC-0012 Sample Data 668Standards Data 704

Method DV-LC-0012 ICAL Data 704Method DV-LC-0012 CCAL Data 751

Raw QC Data 763Method DV-LC-0012 Tune Data 763Method DV-LC-0012 Blank Data 768Method DV-LC-0012 LCSLCSD Data 772

Method DV-LC-0012 Run Logs 785Method DV-LC-0012 Prep Data 788

Inorganic Sample Data 796

General Chemistry Data 796

Gen Chem Cover Page 797

Gen Chem Sample Data 798

Gen Chem QC Data 807Gen Chem ICVCCV 807

Gen Chem MDL 808

Gen Chem Analysis Run Log 809

Gen Chem Prep Data 810

Gen Chem Raw Data 811

Shipping and Receiving Documents 813

Client Chain of Custody 814

12232019Page 4 of 820128

DefinitionsGlossaryJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Qualifiers

GCMS VOAQualifier Description

LCS or LCSD is outside acceptance limits

Qualifier

B Compound was found in the blank and sample

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

GCMS VOA TICsQualifier Description

J Indicates an Estimated Value for TICs

Qualifier

N Presumptive evidence of material

T Result is a tentatively identified compound (TIC) and an estimated value

HPLCICQualifier Description

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

Qualifier

LCMSQualifier Description

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

Qualifier

General ChemistryQualifier Description

HF Field parameter with a holding time of 15 minutes Test performed by laboratory at clients request

Qualifier

GlossaryThese commonly used abbreviations may or may not be present in this report

curren Listed under the D column to designate that the result is reported on a dry weight basis

Abbreviation

R Percent Recovery

CFL Contains Free Liquid

CNF Contains No Free Liquid

DER Duplicate Error Ratio (normalized absolute difference)

Dil Fac Dilution Factor

DL Detection Limit (DoDDOE)

DL RA RE IN Indicates a Dilution Re-analysis Re-extraction or additional Initial metalsanion analysis of the sample

DLC Decision Level Concentration (Radiochemistry)

EDL Estimated Detection Limit (Dioxin)

LOD Limit of Detection (DoDDOE)

LOQ Limit of Quantitation (DoDDOE)

MDA Minimum Detectable Activity (Radiochemistry)

MDC Minimum Detectable Concentration (Radiochemistry)

MDL Method Detection Limit

ML Minimum Level (Dioxin)

NC Not Calculated

ND Not Detected at the reporting limit (or MDL or EDL if shown)

PQL Practical Quantitation Limit

QC Quality Control

RER Relative Error Ratio (Radiochemistry)

RL Reporting Limit or Requested Limit (Radiochemistry)

RPD Relative Percent Difference a measure of the relative difference between two points

TEF Toxicity Equivalent Factor (Dioxin)

TEQ Toxicity Equivalent Quotient (Dioxin)

Eurofins TestAmerica Knoxville

12232019Page 5 of 820129

Method SummaryJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Method Method Description LaboratoryProtocol

SW8468260B Volatile Organic Compounds (GCMS) TAL KNX

SW8469056 Anions Ion Chromatography TAL KNX

SW8468321A PFOA and PFOS TAL DEN

SW8469041A pH TAL KNX

SW8465050 Bomb Preparation Method for Solid Waste TAL KNX

NoneMeOH Prep Methanol Impinger Preparation TAL KNX

TAL SOPNone Leaching Procedure TAL DEN

Protocol References

None = None

SW846 = Test Methods For Evaluating Solid Waste PhysicalChemical Methods Third Edition November 1986 And Its Updates

TAL SOP = TestAmerica Laboratories Standard Operating Procedure

Laboratory References

TAL DEN = Eurofins TestAmerica Denver 4955 Yarrow Street Arvada CO 80002 TEL (303)736-0100

TAL KNX = Eurofins TestAmerica Knoxville 5815 Middlebrook Pike Knoxville TN 37921 TEL (865)291-3000

Eurofins TestAmerica Knoxville

12232019Page 6 of 820130

Sample SummaryJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID Client Sample ID ReceivedCollectedMatrix Asset ID

140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1

BT

Air 112219 0000 112519 0800

140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2

BT

Air 112219 0000 112519 0800

140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3

BT

Air 112219 0000 112519 0800

140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4

BT

Air 112219 0000 112519 0800

140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5

BT

Air 112219 0000 112519 0800

140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6

BT

Air 112219 0000 112519 0800

140-17462-7 A-5786 QC MEOH RB Air 112219 0000 112519 0800

140-17462-8 A-5787 QC MEOH TB Air 112219 0000 112519 0800

140-17462-9 A-5788 QC MEOH PB Air 112219 0000 112519 0800

Eurofins TestAmerica Knoxville

12232019Page 7 of 820131

Job Narrative140-17462-1

Sample Receipt

The samples were received on November 25 2019 at 800 AM in good condition and properly preserved The temperature of the cooler at receipt was 33ordm C

GCMS VOA

Impinger Sample Preparation and Analysis Impinger samples were analyzed for the volatile organic target analytes by purge and trap GCMS using Eurofins TestAmerica Knoxville standard operating procedure KNOX-MS-0015 based on the following method

middot SW-846 8260B ldquoVolatile Organic Compounds by Gas Chromatography Mass Spectrometry (GCMS)rdquo

Each sample is prepared by adding a known amount of sample to the purge water in a purge and trap vessel and spiking with internal standards surrogates and matrix spike analytes (as needed) Volatile compounds are introduced into the gas chromatograph by the purge and trap method The components are separated using the chromatograph and detected using a mass spectrometer which provides both qualitative and quantitative information

Impinger sample results were calculated using the following equation

Concentration μgsample = (C times DF times W times Vt) (Va)WhereC = On-column concentration μgLDF = Dilution factorW = Volume of water purged LVt = Methanol extract final volume μL Va = Volume of extract analyzed microL

Method 8260B The following analyte(s) recovered outside control limits but within marginal exceedance limits for the LCS associated with batch 140-35880 Trichlorofluoromethane This is not indicative of a systematic control problem because these were random marginal exceedances Qualified results have been reported

No additional analytical or quality issues were noted other than those described above or in the DefinitionsGlossary page

LCMS No analytical or quality issues were noted other than those described in the DefinitionsGlossary page

General Chemistry Total Chlorine The samples were prepared for total chlorine using SOP number KNOX-WC-0016 (based on ASTM Method E442 and SW-846 Method 5050) The sample is oxidized by combustion in an oxygen flask at atmospheric pressure or a bomb containing oxygen under pressure The liberated halogen compounds are absorbed primarily as halides in a sodium carbonatesodium bicarbonate buffer solution The combustion products are collected by repeated rinsing of the combustion apparatus and analyzed by ion chromatography in accordance with SOP KNOX- WC-0005 (based on SW-846 Method 9056) The results are calculated using the following equation

C = [(Ccom times Vcom) W] times 1000 gKg

WhereC = Concentration of analyte in the sample mgKgCcom = Concentration of analyte in the combustate mgLVcom = Total volume of combustate LW = Weight of sample combusted g

Anions in Impinger Solutions Anions are is determined in accordance to SOP KNOX-WC-0005 (based on methods 3000A and 9056) The samples were diluted a minimum of 120 in ion chromatography solvent buffer solution to reduce the methanol concentration before injection Buffer concentrate was added until the pH was 10 Samples are diluted with ion chromatography eluate solution to bring the concentrations within the calibration range when necessary Higher dilutions are applied as necessary

An aliquot of prepared sample is introduced into the ion chromatograph Anions are identified based on their retention times as compared to those of known standards Quantification is accomplished by measuring the peak response and comparing it to a calibration curve generated from known standards

12232019Page 8 of 820132

The pH of all samples were tested with pH paper QC consisted of initial CCV and LCS which also serve as initial calibration duplicate analysis for every 10 samples and closing CCV A certified thermometer was used to check the ambient temperature

No additional analytical or quality issues were noted other than those described above or in the DefinitionsGlossary page

Organic Prep No analytical or quality issues were noted other than those described in the DefinitionsGlossary page

No analytical or quality issues were noted other than those described in the DefinitionsGlossary page

12232019Page 9 of 820133

QC Association SummaryJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

GCMS VOA

Prep Batch 35705

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air MeOH Prep140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air MeOH Prep140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air MeOH Prep140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air MeOH Prep140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air MeOH Prep140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air MeOH Prep140-17462-7 A-5786 QC MEOH RB TotalNA

Air MeOH Prep140-17462-8 A-5787 QC MEOH TB TotalNA

Air MeOH Prep140-17462-9 A-5788 QC MEOH PB TotalNA

Air MeOH PrepMB 140-357052-A Method Blank TotalNA

Air MeOH PrepLCS 140-357051-A Lab Control Sample TotalNA

Air MeOH Prep140-17462-2 MS A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air MeOH Prep140-17462-2 MSD A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Analysis Batch 35880

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8260B 35705140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air 8260B 35705140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 8260B 35705140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air 8260B 35705140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air 8260B 35705140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air 8260B 35705140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air 8260B 35705140-17462-7 A-5786 QC MEOH RB TotalNA

Air 8260B 35705140-17462-8 A-5787 QC MEOH TB TotalNA

Air 8260B 35705140-17462-9 A-5788 QC MEOH PB TotalNA

Air 8260B 35705MB 140-357052-A Method Blank TotalNA

Air 8260B 35705LCS 140-357051-A Lab Control Sample TotalNA

Air 8260B 35705LCS 140-357051-A Lab Control Sample TotalNA

Air 8260B 35705140-17462-2 MS A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 8260B 35705140-17462-2 MSD A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

HPLCIC

Prep Batch 35705

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air MeOH Prep140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air MeOH Prep140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air MeOH Prep140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air MeOH Prep140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air MeOH Prep140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air MeOH Prep140-17462-7 A-5786 QC MEOH RB TotalNA

Air MeOH Prep140-17462-8 A-5787 QC MEOH TB TotalNA

Air MeOH Prep140-17462-9 A-5788 QC MEOH PB TotalNA

Air MeOH PrepMB 140-3570514-A Method Blank TotalNA

Air MeOH PrepMB 140-3570514-B Method Blank TotalNA

Air MeOH PrepLCS 140-3570515-A Lab Control Sample TotalNA

Air MeOH PrepLCS 140-3570515-B Lab Control Sample TotalNA

Air MeOH PrepLCSD 140-3570516-A Lab Control Sample Dup TotalNA

Air MeOH PrepLCSD 140-3570516-B Lab Control Sample Dup TotalNA

Eurofins TestAmerica Knoxville

12232019Page 10 of 820134

QC Association SummaryJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

HPLCIC

Prep Batch 35762

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 5050 35705140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air 5050 35705140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 5050 35705140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air 5050 35705140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air 5050 35705140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air 5050 35705140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air 5050 35705140-17462-7 A-5786 QC MEOH RB TotalNA

Air 5050 35705140-17462-8 A-5787 QC MEOH TB TotalNA

Air 5050 35705140-17462-9 A-5788 QC MEOH PB TotalNA

Air 5050 35705MB 140-3570514-B Method Blank TotalNA

Air 5050 35705LCS 140-3570515-B Lab Control Sample TotalNA

Air 5050 35705LCSD 140-3570516-B Lab Control Sample Dup TotalNA

Analysis Batch 36121

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35762140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air 9056 35762140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 9056 35762140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air 9056 35762140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air 9056 35762140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air 9056 35762140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air 9056 35762140-17462-7 A-5786 QC MEOH RB TotalNA

Air 9056 35762140-17462-8 A-5787 QC MEOH TB TotalNA

Air 9056 35762140-17462-9 A-5788 QC MEOH PB TotalNA

Air 9056 35762MB 140-3570514-B Method Blank TotalNA

Air 9056 35762LCS 140-3570515-B Lab Control Sample TotalNA

Air 9056 35762LCSD 140-3570516-B Lab Control Sample Dup TotalNA

Analysis Batch 36210

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35705140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air 9056 35705140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 9056 35705140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air 9056 35705140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air 9056 35705140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air 9056 35705140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air 9056 35705140-17462-7 A-5786 QC MEOH RB TotalNA

Air 9056 35705140-17462-8 A-5787 QC MEOH TB TotalNA

Air 9056 35705140-17462-9 A-5788 QC MEOH PB TotalNA

Air 9056 35705MB 140-3570514-A Method Blank TotalNA

Air 9056 35705LCS 140-3570515-A Lab Control Sample TotalNA

Air 9056 35705LCSD 140-3570516-A Lab Control Sample Dup TotalNA

LCMS

Analysis Batch 464589

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321ADLCK 280-46458913 Lab Control Sample TotalNA

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12232019Page 11 of 820135

QC Association SummaryJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

LCMS

Prep Batch 479505

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air None140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air None140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air None140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air None140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air None140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air None140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air None140-17462-7 A-5786 QC MEOH RB TotalNA

Air None140-17462-8 A-5787 QC MEOH TB TotalNA

Air None140-17462-9 A-5788 QC MEOH PB TotalNA

Air NoneMB 280-4795051-A Method Blank TotalNA

Air NoneLCS 280-4795052-A Lab Control Sample TotalNA

Air NoneLCSD 280-4795053-A Lab Control Sample Dup TotalNA

Analysis Batch 479931

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321A 479505140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air 8321A 479505140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 8321A 479505140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air 8321A 479505140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air 8321A 479505140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air 8321A 479505140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air 8321A 479505140-17462-7 A-5786 QC MEOH RB TotalNA

Air 8321A 479505140-17462-8 A-5787 QC MEOH TB TotalNA

Air 8321A 479505140-17462-9 A-5788 QC MEOH PB TotalNA

Air 8321A 479505MB 280-4795051-A Method Blank TotalNA

Air 8321A 479505LCS 280-4795052-A Lab Control Sample TotalNA

Air 8321A 479505LCSD 280-4795053-A Lab Control Sample Dup TotalNA

General Chemistry

Analysis Batch 36086

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9041A140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air 9041A140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 9041A140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air 9041A140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air 9041A140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air 9041A140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air 9041A140-17462-7 A-5786 QC MEOH RB TotalNA

Air 9041A140-17462-8 A-5787 QC MEOH TB TotalNA

Air 9041A140-17462-9 A-5788 QC MEOH PB TotalNA

Air 9041ALCS 140-360862 Lab Control Sample TotalNA

Eurofins TestAmerica Knoxville

12232019Page 12 of 820136

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-1Client Sample ID A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 287 379 ugSample 112919 1045 120619 1517 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

574 574 ugSample 112919 1045 120619 1517 111133-Pentafluorobutane ND

287 413 ugSample 112919 1045 120619 1517 1111-Trichloroethane ND

574 114 ugSample 112919 1045 120619 1517 1111-Trifluoro-22-dichloroethane ND

574 574 ugSample 112919 1045 120619 1517 1111-Trifluoroethane ND

287 551 ugSample 112919 1045 120619 1517 11122-Tetrachloroethane ND

574 321 ugSample 112919 1045 120619 1517 1112-Trichloro-122-trifluoroethane ND

574 574 ugSample 112919 1045 120619 1517 1112-trichloro-1-fluoroethane ND

287 298 ugSample 112919 1045 120619 1517 1112-Trichloroethane ND

574 287 ugSample 112919 1045 120619 1517 111-Dichloro-1-fluoroethane ND

574 574 ugSample 112919 1045 120619 1517 111-dichloro-22-difluoroethane ND

574 574 ugSample 112919 1045 120619 1517 111-dichloro-22-difluoroethene ND

287 344 ugSample 112919 1045 120619 1517 111-Dichloroethane ND

287 425 ugSample 112919 1045 120619 1517 111-Dichloroethene ND

287 310 ugSample 112919 1045 120619 1517 111-Dichloropropene ND

574 574 ugSample 112919 1045 120619 1517 111-Difluoroethene ND

574 574 ugSample 112919 1045 120619 1517 1122-trichloro-11-difluoroethane ND

287 918 ugSample 112919 1045 120619 1517 1123-Trichlorobenzene ND

287 712 ugSample 112919 1045 120619 1517 1123-Trichloropropane ND

287 964 ugSample 112919 1045 120619 1517 1124-Trichlorobenzene ND

287 597 ugSample 112919 1045 120619 1517 1124-Trimethylbenzene ND

574 101 ugSample 112919 1045 120619 1517 112-Dibromo-3-Chloropropane ND

287 379 ugSample 112919 1045 120619 1517 112-Dibromoethane (EDB) ND

574 574 ugSample 112919 1045 120619 1517 112-dichloro-11-difluoroethane ND

287 505 ugSample 112919 1045 120619 1517 112-Dichlorobenzene ND

287 482 ugSample 112919 1045 120619 1517 112-Dichloroethane ND

287 287 ugSample 112919 1045 120619 1517 112-Dichloropropane ND

287 597 ugSample 112919 1045 120619 1517 1135-Trimethylbenzene ND

287 494 ugSample 112919 1045 120619 1517 113-Dichlorobenzene ND

287 321 ugSample 112919 1045 120619 1517 113-Dichloropropane ND

287 574 ugSample 112919 1045 120619 1517 114-Dichlorobenzene ND

574 585 ugSample 112919 1045 120619 1517 11-Chloro-11-difluoroethane ND

574 574 ugSample 112919 1045 120619 1517 122-dichloro-11-difluoroethylmethyl

ether

ND

287 838 ugSample 112919 1045 120619 1517 122-Dichloropropane ND

115 184 ugSample 112919 1045 120619 1517 12-Butanone (MEK) ND

574 849 ugSample 112919 1045 120619 1517 12-chloro-111444-hexafluoro-2-but

ene

ND

574 574 ugSample 112919 1045 120619 1517 12-Chloro-111-Trifluoroethane ND

287 540 ugSample 112919 1045 120619 1517 12-Chlorotoluene ND

115 264 ugSample 112919 1045 120619 1517 12-Hexanone ND

251 251 ugSample 112919 1045 120619 1517 12-MTP as HFPO ND

287 597 ugSample 112919 1045 120619 1517 14-Chlorotoluene ND

287 769 ugSample 112919 1045 120619 1517 14-Isopropyltoluene ND

115 184 ugSample 112919 1045 120619 1517 14-Methyl-2-pentanone (MIBK) ND

115 677 ugSample 112919 1045 120619 1517 1Acetone ND

287 551 ugSample 112919 1045 120619 1517 1Benzene ND

287 402 ugSample 112919 1045 120619 1517 1Bromobenzene ND

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12232019Page 13 of 820137

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-1Client Sample ID A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromochloromethane ND 287 643 ugSample 112919 1045 120619 1517 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

287 494 ugSample 112919 1045 120619 1517 1Bromodichloromethane ND

287 872 ugSample 112919 1045 120619 1517 1Bromoform ND

574 333 ugSample 112919 1045 120619 1517 1Bromomethane ND

287 712 ugSample 112919 1045 120619 1517 1Carbon disulfide ND

287 379 ugSample 112919 1045 120619 1517 1Carbon tetrachloride ND

843 843 ugSample 112919 1045 120619 1517 1Carbonyl Difluoride ND

287 413 ugSample 112919 1045 120619 1517 1Chlorobenzene ND

287 620 ugSample 112919 1045 120619 1517 1Chlorodibromomethane ND

574 126 ugSample 112919 1045 120619 1517 1Chloroethane ND

287 333 ugSample 112919 1045 120619 1517 1Chloroform ND

574 239 ugSample 112919 1045 120619 1517 1Chloromethane ND

287 230 ugSample 112919 1045 120619 1517 1cis-12-Dichloroethene ND

287 494 ugSample 112919 1045 120619 1517 1cis-13-Dichloropropene ND

287 275 ugSample 112919 1045 120619 1517 1Dibromomethane ND

574 101 ugSample 112919 1045 120619 1517 1Dichlorodifluoromethane ND

287 471 ugSample 112919 1045 120619 1517 1Ethylbenzene ND

287 287 ugSample 112919 1045 120619 1517 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

287 758 ugSample 112919 1045 120619 1517 1Hexachlorobutadiene ND

275 275 ugSample 112919 1045 120619 1517 1HFPO dimer methyl ester as

HFPO-DA

ND

287 402 ugSample 112919 1045 120619 1517 1Isopropylbenzene ND

574 471 ugSample 112919 1045 120619 1517 1mp-Xylene ND

287 184 ugSample 112919 1045 120619 1517 1Methylene Chloride ND

287 138 ugSample 112919 1045 120619 1517 1Naphthalene ND

287 735 ugSample 112919 1045 120619 1517 1n-Butylbenzene ND

287 620 ugSample 112919 1045 120619 1517 1n-Propylbenzene ND

287 298 ugSample 112919 1045 120619 1517 1o-Xylene ND

287 562 ugSample 112919 1045 120619 1517 1sec-Butylbenzene ND

287 620 ugSample 112919 1045 120619 1517 1Styrene ND

287 505 ugSample 112919 1045 120619 1517 1tert-Butylbenzene ND

287 379 ugSample 112919 1045 120619 1517 1Tetrachloroethene ND

287 528 ugSample 112919 1045 120619 1517 1Toluene ND

287 298 ugSample 112919 1045 120619 1517 1trans-12-Dichloroethene ND

287 101 ugSample 112919 1045 120619 1517 1trans-13-Dichloropropene ND

287 207 ugSample 112919 1045 120619 1517 1Trichloroethene ND

574 551 ugSample 112919 1045 120619 1517 1Trichlorofluoromethane ND

574 138 ugSample 112919 1045 120619 1517 1Vinyl chloride ND

Tentatively Identified Compound None ugSample 112919 1045 120619 1517 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1045 120619 1517 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 112919 1045 120619 1517 157 - 152

Dibromofluoromethane (Surr) 104 112919 1045 120619 1517 162 - 134

Toluene-d8 (Surr) 97 112919 1045 120619 1517 171 - 139

Eurofins TestAmerica Knoxville

12232019Page 14 of 820138

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-1Client Sample ID A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 11800 6120 3060 ugSample 112919 1045 121319 2153 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2530 1150 ugSample 112919 1045 121819 1319 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1037 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 130 50 - 200 120419 1005 120819 1037 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-2Client Sample ID A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 299 394 ugSample 112919 1045 120619 1542 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

598 598 ugSample 112919 1045 120619 1542 111133-Pentafluorobutane ND

299 430 ugSample 112919 1045 120619 1542 1111-Trichloroethane ND

598 118 ugSample 112919 1045 120619 1542 1111-Trifluoro-22-dichloroethane ND

598 598 ugSample 112919 1045 120619 1542 1111-Trifluoroethane ND

299 574 ugSample 112919 1045 120619 1542 11122-Tetrachloroethane ND

598 335 ugSample 112919 1045 120619 1542 1112-Trichloro-122-trifluoroethane ND

598 598 ugSample 112919 1045 120619 1542 1112-trichloro-1-fluoroethane ND

299 311 ugSample 112919 1045 120619 1542 1112-Trichloroethane ND

598 299 ugSample 112919 1045 120619 1542 111-Dichloro-1-fluoroethane ND

598 598 ugSample 112919 1045 120619 1542 111-dichloro-22-difluoroethane ND

598 598 ugSample 112919 1045 120619 1542 111-dichloro-22-difluoroethene ND

299 359 ugSample 112919 1045 120619 1542 111-Dichloroethane ND

299 442 ugSample 112919 1045 120619 1542 111-Dichloroethene ND

299 323 ugSample 112919 1045 120619 1542 111-Dichloropropene ND

598 598 ugSample 112919 1045 120619 1542 111-Difluoroethene ND

598 598 ugSample 112919 1045 120619 1542 1122-trichloro-11-difluoroethane ND

299 956 ugSample 112919 1045 120619 1542 1123-Trichlorobenzene ND

299 741 ugSample 112919 1045 120619 1542 1123-Trichloropropane ND

299 100 ugSample 112919 1045 120619 1542 1124-Trichlorobenzene ND

299 621 ugSample 112919 1045 120619 1542 1124-Trimethylbenzene ND

598 105 ugSample 112919 1045 120619 1542 112-Dibromo-3-Chloropropane ND

299 394 ugSample 112919 1045 120619 1542 112-Dibromoethane (EDB) ND

598 598 ugSample 112919 1045 120619 1542 112-dichloro-11-difluoroethane ND

299 526 ugSample 112919 1045 120619 1542 112-Dichlorobenzene ND

299 502 ugSample 112919 1045 120619 1542 112-Dichloroethane ND

Eurofins TestAmerica Knoxville

12232019Page 15 of 820139

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-2Client Sample ID A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

12-Dichloropropane ND 299 299 ugSample 112919 1045 120619 1542 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

299 621 ugSample 112919 1045 120619 1542 1135-Trimethylbenzene ND

299 514 ugSample 112919 1045 120619 1542 113-Dichlorobenzene ND

299 335 ugSample 112919 1045 120619 1542 113-Dichloropropane ND

299 598 ugSample 112919 1045 120619 1542 114-Dichlorobenzene ND

598 610 ugSample 112919 1045 120619 1542 11-Chloro-11-difluoroethane ND

598 598 ugSample 112919 1045 120619 1542 122-dichloro-11-difluoroethylmethyl

ether

ND

299 872 ugSample 112919 1045 120619 1542 122-Dichloropropane ND

120 191 ugSample 112919 1045 120619 1542 12-Butanone (MEK) ND

598 884 ugSample 112919 1045 120619 1542 12-chloro-111444-hexafluoro-2-but

ene

ND

598 598 ugSample 112919 1045 120619 1542 12-Chloro-111-Trifluoroethane ND

299 562 ugSample 112919 1045 120619 1542 12-Chlorotoluene ND

120 275 ugSample 112919 1045 120619 1542 12-Hexanone ND

261 261 ugSample 112919 1045 120619 1542 12-MTP as HFPO ND

299 621 ugSample 112919 1045 120619 1542 14-Chlorotoluene ND

299 801 ugSample 112919 1045 120619 1542 14-Isopropyltoluene ND

120 191 ugSample 112919 1045 120619 1542 14-Methyl-2-pentanone (MIBK) ND

120 705 ugSample 112919 1045 120619 1542 1Acetone ND

299 574 ugSample 112919 1045 120619 1542 1Benzene ND

299 418 ugSample 112919 1045 120619 1542 1Bromobenzene ND

299 669 ugSample 112919 1045 120619 1542 1Bromochloromethane ND

299 514 ugSample 112919 1045 120619 1542 1Bromodichloromethane ND

299 908 ugSample 112919 1045 120619 1542 1Bromoform ND

598 347 ugSample 112919 1045 120619 1542 1Bromomethane ND

299 741 ugSample 112919 1045 120619 1542 1Carbon disulfide ND

299 394 ugSample 112919 1045 120619 1542 1Carbon tetrachloride ND

879 879 ugSample 112919 1045 120619 1542 1Carbonyl Difluoride ND

299 430 ugSample 112919 1045 120619 1542 1Chlorobenzene ND

299 645 ugSample 112919 1045 120619 1542 1Chlorodibromomethane ND

598 131 ugSample 112919 1045 120619 1542 1Chloroethane ND

299 347 ugSample 112919 1045 120619 1542 1Chloroform ND

598 249 ugSample 112919 1045 120619 1542 1Chloromethane ND

299 239 ugSample 112919 1045 120619 1542 1cis-12-Dichloroethene ND

299 514 ugSample 112919 1045 120619 1542 1cis-13-Dichloropropene ND

299 287 ugSample 112919 1045 120619 1542 1Dibromomethane ND

598 105 ugSample 112919 1045 120619 1542 1Dichlorodifluoromethane ND

299 490 ugSample 112919 1045 120619 1542 1Ethylbenzene ND

299 299 ugSample 112919 1045 120619 1542 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

299 789 ugSample 112919 1045 120619 1542 1Hexachlorobutadiene ND

287 287 ugSample 112919 1045 120619 1542 1HFPO dimer methyl ester as

HFPO-DA

ND

299 418 ugSample 112919 1045 120619 1542 1Isopropylbenzene ND

598 490 ugSample 112919 1045 120619 1542 1mp-Xylene ND

299 191 ugSample 112919 1045 120619 1542 1Methylene Chloride ND

299 143 ugSample 112919 1045 120619 1542 1Naphthalene ND

Eurofins TestAmerica Knoxville

12232019Page 16 of 820140

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-2Client Sample ID A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

n-Butylbenzene ND 299 765 ugSample 112919 1045 120619 1542 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

299 645 ugSample 112919 1045 120619 1542 1n-Propylbenzene ND

299 311 ugSample 112919 1045 120619 1542 1o-Xylene ND

299 586 ugSample 112919 1045 120619 1542 1sec-Butylbenzene ND

299 645 ugSample 112919 1045 120619 1542 1Styrene ND

299 526 ugSample 112919 1045 120619 1542 1tert-Butylbenzene ND

299 394 ugSample 112919 1045 120619 1542 1Tetrachloroethene ND

299 550 ugSample 112919 1045 120619 1542 1Toluene ND

299 311 ugSample 112919 1045 120619 1542 1trans-12-Dichloroethene ND

299 105 ugSample 112919 1045 120619 1542 1trans-13-Dichloropropene ND

299 215 ugSample 112919 1045 120619 1542 1Trichloroethene ND

598 574 ugSample 112919 1045 120619 1542 1Trichlorofluoromethane ND

598 143 ugSample 112919 1045 120619 1542 1Vinyl chloride ND

Cyclohexane 433 T J N ugSample 442 110-82-7 112919 1045 120619 1542 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1045 120619 1542 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1045 120619 1542 157 - 152

Dibromofluoromethane (Surr) 105 112919 1045 120619 1542 162 - 134

Toluene-d8 (Surr) 96 112919 1045 120619 1542 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 14800 6370 3190 ugSample 112919 1045 121319 2214 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2630 1200 ugSample 112919 1045 121819 1340 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1040 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 131 50 - 200 120419 1005 120819 1040 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-3Client Sample ID A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 291 384 ugSample 112919 1045 120619 1606 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

582 582 ugSample 112919 1045 120619 1606 111133-Pentafluorobutane ND

Eurofins TestAmerica Knoxville

12232019Page 17 of 820141

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-3Client Sample ID A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

111-Trichloroethane ND 291 419 ugSample 112919 1045 120619 1606 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

582 115 ugSample 112919 1045 120619 1606 1111-Trifluoro-22-dichloroethane ND

582 582 ugSample 112919 1045 120619 1606 1111-Trifluoroethane ND

291 559 ugSample 112919 1045 120619 1606 11122-Tetrachloroethane ND

582 326 ugSample 112919 1045 120619 1606 1112-Trichloro-122-trifluoroethane ND

582 582 ugSample 112919 1045 120619 1606 1112-trichloro-1-fluoroethane ND

291 303 ugSample 112919 1045 120619 1606 1112-Trichloroethane ND

582 291 ugSample 112919 1045 120619 1606 111-Dichloro-1-fluoroethane ND

582 582 ugSample 112919 1045 120619 1606 111-dichloro-22-difluoroethane ND

582 582 ugSample 112919 1045 120619 1606 111-dichloro-22-difluoroethene ND

291 349 ugSample 112919 1045 120619 1606 111-Dichloroethane ND

291 431 ugSample 112919 1045 120619 1606 111-Dichloroethene ND

291 314 ugSample 112919 1045 120619 1606 111-Dichloropropene ND

582 582 ugSample 112919 1045 120619 1606 111-Difluoroethene ND

582 582 ugSample 112919 1045 120619 1606 1122-trichloro-11-difluoroethane ND

291 932 ugSample 112919 1045 120619 1606 1123-Trichlorobenzene ND

291 722 ugSample 112919 1045 120619 1606 1123-Trichloropropane ND

291 978 ugSample 112919 1045 120619 1606 1124-Trichlorobenzene ND

291 606 ugSample 112919 1045 120619 1606 1124-Trimethylbenzene ND

582 102 ugSample 112919 1045 120619 1606 112-Dibromo-3-Chloropropane ND

291 384 ugSample 112919 1045 120619 1606 112-Dibromoethane (EDB) ND

582 582 ugSample 112919 1045 120619 1606 112-dichloro-11-difluoroethane ND

291 512 ugSample 112919 1045 120619 1606 112-Dichlorobenzene ND

291 489 ugSample 112919 1045 120619 1606 112-Dichloroethane ND

291 291 ugSample 112919 1045 120619 1606 112-Dichloropropane ND

291 606 ugSample 112919 1045 120619 1606 1135-Trimethylbenzene ND

291 501 ugSample 112919 1045 120619 1606 113-Dichlorobenzene ND

291 326 ugSample 112919 1045 120619 1606 113-Dichloropropane ND

291 582 ugSample 112919 1045 120619 1606 114-Dichlorobenzene ND

582 594 ugSample 112919 1045 120619 1606 11-Chloro-11-difluoroethane ND

582 582 ugSample 112919 1045 120619 1606 122-dichloro-11-difluoroethylmethyl

ether

ND

291 850 ugSample 112919 1045 120619 1606 122-Dichloropropane ND

116 186 ugSample 112919 1045 120619 1606 12-Butanone (MEK) ND

582 862 ugSample 112919 1045 120619 1606 12-chloro-111444-hexafluoro-2-but

ene

ND

582 582 ugSample 112919 1045 120619 1606 12-Chloro-111-Trifluoroethane ND

291 547 ugSample 112919 1045 120619 1606 12-Chlorotoluene ND

116 268 ugSample 112919 1045 120619 1606 12-Hexanone ND

254 254 ugSample 112919 1045 120619 1606 12-MTP as HFPO ND

291 606 ugSample 112919 1045 120619 1606 14-Chlorotoluene ND

291 780 ugSample 112919 1045 120619 1606 14-Isopropyltoluene ND

116 186 ugSample 112919 1045 120619 1606 14-Methyl-2-pentanone (MIBK) ND

116 687 ugSample 112919 1045 120619 1606 1Acetone ND

291 559 ugSample 112919 1045 120619 1606 1Benzene ND

291 408 ugSample 112919 1045 120619 1606 1Bromobenzene ND

291 652 ugSample 112919 1045 120619 1606 1Bromochloromethane ND

291 501 ugSample 112919 1045 120619 1606 1Bromodichloromethane ND

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12232019Page 18 of 820142

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-3Client Sample ID A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromoform ND 291 885 ugSample 112919 1045 120619 1606 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

582 338 ugSample 112919 1045 120619 1606 1Bromomethane ND

291 722 ugSample 112919 1045 120619 1606 1Carbon disulfide ND

291 384 ugSample 112919 1045 120619 1606 1Carbon tetrachloride ND

850 850 ugSample 112919 1045 120619 1606 1Carbonyl Difluoride ND

291 419 ugSample 112919 1045 120619 1606 1Chlorobenzene ND

291 629 ugSample 112919 1045 120619 1606 1Chlorodibromomethane ND

582 128 ugSample 112919 1045 120619 1606 1Chloroethane ND

291 338 ugSample 112919 1045 120619 1606 1Chloroform ND

582 242 ugSample 112919 1045 120619 1606 1Chloromethane ND

291 233 ugSample 112919 1045 120619 1606 1cis-12-Dichloroethene ND

291 501 ugSample 112919 1045 120619 1606 1cis-13-Dichloropropene ND

291 280 ugSample 112919 1045 120619 1606 1Dibromomethane ND

582 102 ugSample 112919 1045 120619 1606 1Dichlorodifluoromethane ND

291 477 ugSample 112919 1045 120619 1606 1Ethylbenzene ND

291 291 ugSample 112919 1045 120619 1606 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

291 769 ugSample 112919 1045 120619 1606 1Hexachlorobutadiene ND

279 279 ugSample 112919 1045 120619 1606 1HFPO dimer methyl ester as

HFPO-DA

ND

291 408 ugSample 112919 1045 120619 1606 1Isopropylbenzene ND

582 477 ugSample 112919 1045 120619 1606 1mp-Xylene ND

291 186 ugSample 112919 1045 120619 1606 1Methylene Chloride ND

291 140 ugSample 112919 1045 120619 1606 1Naphthalene ND

291 745 ugSample 112919 1045 120619 1606 1n-Butylbenzene ND

291 629 ugSample 112919 1045 120619 1606 1n-Propylbenzene ND

291 303 ugSample 112919 1045 120619 1606 1o-Xylene ND

291 571 ugSample 112919 1045 120619 1606 1sec-Butylbenzene ND

291 629 ugSample 112919 1045 120619 1606 1Styrene ND

291 512 ugSample 112919 1045 120619 1606 1tert-Butylbenzene ND

291 384 ugSample 112919 1045 120619 1606 1Tetrachloroethene ND

291 536 ugSample 112919 1045 120619 1606 1Toluene ND

291 303 ugSample 112919 1045 120619 1606 1trans-12-Dichloroethene ND

291 102 ugSample 112919 1045 120619 1606 1trans-13-Dichloropropene ND

291 210 ugSample 112919 1045 120619 1606 1Trichloroethene ND

582 559 ugSample 112919 1045 120619 1606 1Trichlorofluoromethane ND

582 140 ugSample 112919 1045 120619 1606 1Vinyl chloride ND

Cyclohexane 424 T J N ugSample 442 110-82-7 112919 1045 120619 1606 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1045 120619 1606 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 112919 1045 120619 1606 157 - 152

Dibromofluoromethane (Surr) 104 112919 1045 120619 1606 162 - 134

Toluene-d8 (Surr) 98 112919 1045 120619 1606 171 - 139

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12232019Page 19 of 820143

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-3Client Sample ID A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 6110 J 6210 3110 ugSample 112919 1045 121319 2235 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2560 1160 ugSample 112919 1045 121819 1401 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1044 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 129 50 - 200 120419 1005 120819 1044 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-4Client Sample ID A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 304 402 ugSample 112919 1045 120619 1631 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

608 608 ugSample 112919 1045 120619 1631 111133-Pentafluorobutane ND

304 438 ugSample 112919 1045 120619 1631 1111-Trichloroethane ND

608 120 ugSample 112919 1045 120619 1631 1111-Trifluoro-22-dichloroethane ND

608 608 ugSample 112919 1045 120619 1631 1111-Trifluoroethane ND

304 584 ugSample 112919 1045 120619 1631 11122-Tetrachloroethane ND

608 341 ugSample 112919 1045 120619 1631 1112-Trichloro-122-trifluoroethane ND

608 608 ugSample 112919 1045 120619 1631 1112-trichloro-1-fluoroethane ND

304 316 ugSample 112919 1045 120619 1631 1112-Trichloroethane ND

608 304 ugSample 112919 1045 120619 1631 111-Dichloro-1-fluoroethane ND

608 608 ugSample 112919 1045 120619 1631 111-dichloro-22-difluoroethane ND

608 608 ugSample 112919 1045 120619 1631 111-dichloro-22-difluoroethene ND

304 365 ugSample 112919 1045 120619 1631 111-Dichloroethane ND

304 450 ugSample 112919 1045 120619 1631 111-Dichloroethene ND

304 329 ugSample 112919 1045 120619 1631 111-Dichloropropene ND

608 608 ugSample 112919 1045 120619 1631 111-Difluoroethene ND

608 608 ugSample 112919 1045 120619 1631 1122-trichloro-11-difluoroethane ND

304 974 ugSample 112919 1045 120619 1631 1123-Trichlorobenzene ND

304 754 ugSample 112919 1045 120619 1631 1123-Trichloropropane ND

304 102 ugSample 112919 1045 120619 1631 1124-Trichlorobenzene ND

304 633 ugSample 112919 1045 120619 1631 1124-Trimethylbenzene ND

608 107 ugSample 112919 1045 120619 1631 112-Dibromo-3-Chloropropane ND

304 402 ugSample 112919 1045 120619 1631 112-Dibromoethane (EDB) ND

608 608 ugSample 112919 1045 120619 1631 112-dichloro-11-difluoroethane ND

304 535 ugSample 112919 1045 120619 1631 112-Dichlorobenzene ND

304 511 ugSample 112919 1045 120619 1631 112-Dichloroethane ND

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12232019Page 20 of 820144

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-4Client Sample ID A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

12-Dichloropropane ND 304 304 ugSample 112919 1045 120619 1631 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

304 633 ugSample 112919 1045 120619 1631 1135-Trimethylbenzene ND

304 523 ugSample 112919 1045 120619 1631 113-Dichlorobenzene ND

304 341 ugSample 112919 1045 120619 1631 113-Dichloropropane ND

304 608 ugSample 112919 1045 120619 1631 114-Dichlorobenzene ND

608 621 ugSample 112919 1045 120619 1631 11-Chloro-11-difluoroethane ND

608 608 ugSample 112919 1045 120619 1631 122-dichloro-11-difluoroethylmethyl

ether

ND

304 888 ugSample 112919 1045 120619 1631 122-Dichloropropane ND

122 195 ugSample 112919 1045 120619 1631 12-Butanone (MEK) ND

608 901 ugSample 112919 1045 120619 1631 12-chloro-111444-hexafluoro-2-but

ene

ND

608 608 ugSample 112919 1045 120619 1631 12-Chloro-111-Trifluoroethane ND

304 572 ugSample 112919 1045 120619 1631 12-Chlorotoluene ND

122 280 ugSample 112919 1045 120619 1631 12-Hexanone ND

266 266 ugSample 112919 1045 120619 1631 12-MTP as HFPO ND

304 633 ugSample 112919 1045 120619 1631 14-Chlorotoluene ND

304 815 ugSample 112919 1045 120619 1631 14-Isopropyltoluene ND

122 195 ugSample 112919 1045 120619 1631 14-Methyl-2-pentanone (MIBK) ND

122 718 ugSample 112919 1045 120619 1631 1Acetone ND

304 584 ugSample 112919 1045 120619 1631 1Benzene ND

304 426 ugSample 112919 1045 120619 1631 1Bromobenzene ND

304 681 ugSample 112919 1045 120619 1631 1Bromochloromethane ND

304 523 ugSample 112919 1045 120619 1631 1Bromodichloromethane ND

304 925 ugSample 112919 1045 120619 1631 1Bromoform ND

608 353 ugSample 112919 1045 120619 1631 1Bromomethane ND

304 754 ugSample 112919 1045 120619 1631 1Carbon disulfide ND

304 402 ugSample 112919 1045 120619 1631 1Carbon tetrachloride ND

894 894 ugSample 112919 1045 120619 1631 1Carbonyl Difluoride ND

304 438 ugSample 112919 1045 120619 1631 1Chlorobenzene ND

304 657 ugSample 112919 1045 120619 1631 1Chlorodibromomethane ND

608 134 ugSample 112919 1045 120619 1631 1Chloroethane ND

304 353 ugSample 112919 1045 120619 1631 1Chloroform ND

608 253 ugSample 112919 1045 120619 1631 1Chloromethane ND

304 243 ugSample 112919 1045 120619 1631 1cis-12-Dichloroethene ND

304 523 ugSample 112919 1045 120619 1631 1cis-13-Dichloropropene ND

304 292 ugSample 112919 1045 120619 1631 1Dibromomethane ND

608 107 ugSample 112919 1045 120619 1631 1Dichlorodifluoromethane ND

304 499 ugSample 112919 1045 120619 1631 1Ethylbenzene ND

304 304 ugSample 112919 1045 120619 1631 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

304 803 ugSample 112919 1045 120619 1631 1Hexachlorobutadiene ND

292 292 ugSample 112919 1045 120619 1631 1HFPO dimer methyl ester as

HFPO-DA

ND

304 426 ugSample 112919 1045 120619 1631 1Isopropylbenzene ND

608 499 ugSample 112919 1045 120619 1631 1mp-Xylene ND

304 195 ugSample 112919 1045 120619 1631 1Methylene Chloride ND

304 146 ugSample 112919 1045 120619 1631 1Naphthalene ND

Eurofins TestAmerica Knoxville

12232019Page 21 of 820145

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-4Client Sample ID A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

n-Butylbenzene ND 304 779 ugSample 112919 1045 120619 1631 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

304 657 ugSample 112919 1045 120619 1631 1n-Propylbenzene ND

304 316 ugSample 112919 1045 120619 1631 1o-Xylene ND

304 596 ugSample 112919 1045 120619 1631 1sec-Butylbenzene ND

304 657 ugSample 112919 1045 120619 1631 1Styrene ND

304 535 ugSample 112919 1045 120619 1631 1tert-Butylbenzene ND

304 402 ugSample 112919 1045 120619 1631 1Tetrachloroethene ND

304 560 ugSample 112919 1045 120619 1631 1Toluene ND

304 316 ugSample 112919 1045 120619 1631 1trans-12-Dichloroethene ND

304 107 ugSample 112919 1045 120619 1631 1trans-13-Dichloropropene ND

304 219 ugSample 112919 1045 120619 1631 1Trichloroethene ND

608 584 ugSample 112919 1045 120619 1631 1Trichlorofluoromethane ND

608 146 ugSample 112919 1045 120619 1631 1Vinyl chloride ND

Cyclohexane 454 T J N ugSample 442 110-82-7 112919 1045 120619 1631 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 118 70 - 160 112919 1045 120619 1631 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 110 112919 1045 120619 1631 157 - 152

Dibromofluoromethane (Surr) 104 112919 1045 120619 1631 162 - 134

Toluene-d8 (Surr) 96 112919 1045 120619 1631 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 4170 J 6490 3250 ugSample 112919 1045 121319 2256 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2680 1220 ugSample 112919 1045 121819 1421 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1047 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 126 50 - 200 120419 1005 120819 1047 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1503 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-5Client Sample ID A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 269 355 ugSample 112919 1045 120619 1655 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

538 538 ugSample 112919 1045 120619 1655 111133-Pentafluorobutane ND

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12232019Page 22 of 820146

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-5Client Sample ID A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

111-Trichloroethane ND 269 387 ugSample 112919 1045 120619 1655 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

538 106 ugSample 112919 1045 120619 1655 1111-Trifluoro-22-dichloroethane ND

538 538 ugSample 112919 1045 120619 1655 1111-Trifluoroethane ND

269 516 ugSample 112919 1045 120619 1655 11122-Tetrachloroethane ND

538 301 ugSample 112919 1045 120619 1655 1112-Trichloro-122-trifluoroethane ND

538 538 ugSample 112919 1045 120619 1655 1112-trichloro-1-fluoroethane ND

269 280 ugSample 112919 1045 120619 1655 1112-Trichloroethane ND

538 269 ugSample 112919 1045 120619 1655 111-Dichloro-1-fluoroethane ND

538 538 ugSample 112919 1045 120619 1655 111-dichloro-22-difluoroethane ND

538 538 ugSample 112919 1045 120619 1655 111-dichloro-22-difluoroethene ND

269 323 ugSample 112919 1045 120619 1655 111-Dichloroethane ND

269 398 ugSample 112919 1045 120619 1655 111-Dichloroethene ND

269 290 ugSample 112919 1045 120619 1655 111-Dichloropropene ND

538 538 ugSample 112919 1045 120619 1655 111-Difluoroethene ND

538 538 ugSample 112919 1045 120619 1655 1122-trichloro-11-difluoroethane ND

269 860 ugSample 112919 1045 120619 1655 1123-Trichlorobenzene ND

269 667 ugSample 112919 1045 120619 1655 1123-Trichloropropane ND

269 903 ugSample 112919 1045 120619 1655 1124-Trichlorobenzene ND

269 559 ugSample 112919 1045 120619 1655 1124-Trimethylbenzene ND

538 946 ugSample 112919 1045 120619 1655 112-Dibromo-3-Chloropropane ND

269 355 ugSample 112919 1045 120619 1655 112-Dibromoethane (EDB) ND

538 538 ugSample 112919 1045 120619 1655 112-dichloro-11-difluoroethane ND

269 473 ugSample 112919 1045 120619 1655 112-Dichlorobenzene ND

269 452 ugSample 112919 1045 120619 1655 112-Dichloroethane ND

269 269 ugSample 112919 1045 120619 1655 112-Dichloropropane ND

269 559 ugSample 112919 1045 120619 1655 1135-Trimethylbenzene ND

269 462 ugSample 112919 1045 120619 1655 113-Dichlorobenzene ND

269 301 ugSample 112919 1045 120619 1655 113-Dichloropropane ND

269 538 ugSample 112919 1045 120619 1655 114-Dichlorobenzene ND

538 548 ugSample 112919 1045 120619 1655 11-Chloro-11-difluoroethane ND

538 538 ugSample 112919 1045 120619 1655 122-dichloro-11-difluoroethylmethyl

ether

ND

269 785 ugSample 112919 1045 120619 1655 122-Dichloropropane ND

108 172 ugSample 112919 1045 120619 1655 12-Butanone (MEK) ND

538 796 ugSample 112919 1045 120619 1655 12-chloro-111444-hexafluoro-2-but

ene

ND

538 538 ugSample 112919 1045 120619 1655 12-Chloro-111-Trifluoroethane ND

269 505 ugSample 112919 1045 120619 1655 12-Chlorotoluene ND

108 247 ugSample 112919 1045 120619 1655 12-Hexanone ND

235 235 ugSample 112919 1045 120619 1655 12-MTP as HFPO ND

269 559 ugSample 112919 1045 120619 1655 14-Chlorotoluene ND

269 720 ugSample 112919 1045 120619 1655 14-Isopropyltoluene ND

108 172 ugSample 112919 1045 120619 1655 14-Methyl-2-pentanone (MIBK) ND

108 634 ugSample 112919 1045 120619 1655 1Acetone ND

269 516 ugSample 112919 1045 120619 1655 1Benzene ND

269 376 ugSample 112919 1045 120619 1655 1Bromobenzene ND

269 602 ugSample 112919 1045 120619 1655 1Bromochloromethane ND

269 462 ugSample 112919 1045 120619 1655 1Bromodichloromethane ND

Eurofins TestAmerica Knoxville

12232019Page 23 of 820147

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-5Client Sample ID A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromoform ND 269 817 ugSample 112919 1045 120619 1655 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

538 312 ugSample 112919 1045 120619 1655 1Bromomethane ND

269 667 ugSample 112919 1045 120619 1655 1Carbon disulfide ND

269 355 ugSample 112919 1045 120619 1655 1Carbon tetrachloride ND

791 791 ugSample 112919 1045 120619 1655 1Carbonyl Difluoride ND

269 387 ugSample 112919 1045 120619 1655 1Chlorobenzene ND

269 581 ugSample 112919 1045 120619 1655 1Chlorodibromomethane ND

538 118 ugSample 112919 1045 120619 1655 1Chloroethane ND

269 312 ugSample 112919 1045 120619 1655 1Chloroform ND

538 224 ugSample 112919 1045 120619 1655 1Chloromethane ND

269 215 ugSample 112919 1045 120619 1655 1cis-12-Dichloroethene ND

269 462 ugSample 112919 1045 120619 1655 1cis-13-Dichloropropene ND

269 258 ugSample 112919 1045 120619 1655 1Dibromomethane ND

538 946 ugSample 112919 1045 120619 1655 1Dichlorodifluoromethane ND

269 441 ugSample 112919 1045 120619 1655 1Ethylbenzene ND

269 269 ugSample 112919 1045 120619 1655 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

269 710 ugSample 112919 1045 120619 1655 1Hexachlorobutadiene ND

258 258 ugSample 112919 1045 120619 1655 1HFPO dimer methyl ester as

HFPO-DA

ND

269 376 ugSample 112919 1045 120619 1655 1Isopropylbenzene ND

538 441 ugSample 112919 1045 120619 1655 1mp-Xylene ND

269 172 ugSample 112919 1045 120619 1655 1Methylene Chloride ND

269 129 ugSample 112919 1045 120619 1655 1Naphthalene ND

269 688 ugSample 112919 1045 120619 1655 1n-Butylbenzene ND

269 581 ugSample 112919 1045 120619 1655 1n-Propylbenzene ND

269 280 ugSample 112919 1045 120619 1655 1o-Xylene ND

269 527 ugSample 112919 1045 120619 1655 1sec-Butylbenzene ND

269 581 ugSample 112919 1045 120619 1655 1Styrene ND

269 473 ugSample 112919 1045 120619 1655 1tert-Butylbenzene ND

269 355 ugSample 112919 1045 120619 1655 1Tetrachloroethene ND

269 495 ugSample 112919 1045 120619 1655 1Toluene ND

269 280 ugSample 112919 1045 120619 1655 1trans-12-Dichloroethene ND

269 946 ugSample 112919 1045 120619 1655 1trans-13-Dichloropropene ND

269 194 ugSample 112919 1045 120619 1655 1Trichloroethene ND

538 516 ugSample 112919 1045 120619 1655 1Trichlorofluoromethane ND

538 129 ugSample 112919 1045 120619 1655 1Vinyl chloride ND

Cyclohexane 436 T J N ugSample 442 110-82-7 112919 1045 120619 1655 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 118 70 - 160 112919 1045 120619 1655 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1045 120619 1655 157 - 152

Dibromofluoromethane (Surr) 103 112919 1045 120619 1655 162 - 134

Toluene-d8 (Surr) 96 112919 1045 120619 1655 171 - 139

Eurofins TestAmerica Knoxville

12232019Page 24 of 820148

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-5Client Sample ID A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine ND 5730 2870 ugSample 112919 1045 121319 2316 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2370 1080 ugSample 112919 1045 121819 1442 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1053 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 125 50 - 200 120419 1005 120819 1053 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1503 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-6Client Sample ID A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 291 384 ugSample 112919 1045 120619 1720 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

582 582 ugSample 112919 1045 120619 1720 111133-Pentafluorobutane ND

291 419 ugSample 112919 1045 120619 1720 1111-Trichloroethane ND

582 115 ugSample 112919 1045 120619 1720 1111-Trifluoro-22-dichloroethane ND

582 582 ugSample 112919 1045 120619 1720 1111-Trifluoroethane ND

291 559 ugSample 112919 1045 120619 1720 11122-Tetrachloroethane ND

582 326 ugSample 112919 1045 120619 1720 1112-Trichloro-122-trifluoroethane ND

582 582 ugSample 112919 1045 120619 1720 1112-trichloro-1-fluoroethane ND

291 303 ugSample 112919 1045 120619 1720 1112-Trichloroethane ND

582 291 ugSample 112919 1045 120619 1720 111-Dichloro-1-fluoroethane ND

582 582 ugSample 112919 1045 120619 1720 111-dichloro-22-difluoroethane ND

582 582 ugSample 112919 1045 120619 1720 111-dichloro-22-difluoroethene ND

291 349 ugSample 112919 1045 120619 1720 111-Dichloroethane ND

291 431 ugSample 112919 1045 120619 1720 111-Dichloroethene ND

291 314 ugSample 112919 1045 120619 1720 111-Dichloropropene ND

582 582 ugSample 112919 1045 120619 1720 111-Difluoroethene ND

582 582 ugSample 112919 1045 120619 1720 1122-trichloro-11-difluoroethane ND

291 931 ugSample 112919 1045 120619 1720 1123-Trichlorobenzene ND

291 722 ugSample 112919 1045 120619 1720 1123-Trichloropropane ND

291 978 ugSample 112919 1045 120619 1720 1124-Trichlorobenzene ND

291 605 ugSample 112919 1045 120619 1720 1124-Trimethylbenzene ND

582 102 ugSample 112919 1045 120619 1720 112-Dibromo-3-Chloropropane ND

291 384 ugSample 112919 1045 120619 1720 112-Dibromoethane (EDB) ND

582 582 ugSample 112919 1045 120619 1720 112-dichloro-11-difluoroethane ND

291 512 ugSample 112919 1045 120619 1720 112-Dichlorobenzene ND

291 489 ugSample 112919 1045 120619 1720 112-Dichloroethane ND

Eurofins TestAmerica Knoxville

12232019Page 25 of 820149

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-6Client Sample ID A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

12-Dichloropropane ND 291 291 ugSample 112919 1045 120619 1720 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

291 605 ugSample 112919 1045 120619 1720 1135-Trimethylbenzene ND

291 501 ugSample 112919 1045 120619 1720 113-Dichlorobenzene ND

291 326 ugSample 112919 1045 120619 1720 113-Dichloropropane ND

291 582 ugSample 112919 1045 120619 1720 114-Dichlorobenzene ND

582 594 ugSample 112919 1045 120619 1720 11-Chloro-11-difluoroethane ND

582 582 ugSample 112919 1045 120619 1720 122-dichloro-11-difluoroethylmethyl

ether

ND

291 850 ugSample 112919 1045 120619 1720 122-Dichloropropane ND

116 186 ugSample 112919 1045 120619 1720 12-Butanone (MEK) ND

582 861 ugSample 112919 1045 120619 1720 12-chloro-111444-hexafluoro-2-but

ene

ND

582 582 ugSample 112919 1045 120619 1720 12-Chloro-111-Trifluoroethane ND

291 547 ugSample 112919 1045 120619 1720 12-Chlorotoluene ND

116 268 ugSample 112919 1045 120619 1720 12-Hexanone ND

254 254 ugSample 112919 1045 120619 1720 12-MTP as HFPO ND

291 605 ugSample 112919 1045 120619 1720 14-Chlorotoluene ND

291 780 ugSample 112919 1045 120619 1720 14-Isopropyltoluene ND

116 186 ugSample 112919 1045 120619 1720 14-Methyl-2-pentanone (MIBK) ND

116 687 ugSample 112919 1045 120619 1720 1Acetone ND

291 559 ugSample 112919 1045 120619 1720 1Benzene ND

291 407 ugSample 112919 1045 120619 1720 1Bromobenzene ND

291 652 ugSample 112919 1045 120619 1720 1Bromochloromethane ND

291 501 ugSample 112919 1045 120619 1720 1Bromodichloromethane ND

291 885 ugSample 112919 1045 120619 1720 1Bromoform ND

582 338 ugSample 112919 1045 120619 1720 1Bromomethane ND

291 722 ugSample 112919 1045 120619 1720 1Carbon disulfide ND

291 384 ugSample 112919 1045 120619 1720 1Carbon tetrachloride ND

850 850 ugSample 112919 1045 120619 1720 1Carbonyl Difluoride ND

291 419 ugSample 112919 1045 120619 1720 1Chlorobenzene ND

291 629 ugSample 112919 1045 120619 1720 1Chlorodibromomethane ND

582 128 ugSample 112919 1045 120619 1720 1Chloroethane ND

291 338 ugSample 112919 1045 120619 1720 1Chloroform ND

582 242 ugSample 112919 1045 120619 1720 1Chloromethane ND

291 233 ugSample 112919 1045 120619 1720 1cis-12-Dichloroethene ND

291 501 ugSample 112919 1045 120619 1720 1cis-13-Dichloropropene ND

291 279 ugSample 112919 1045 120619 1720 1Dibromomethane ND

582 102 ugSample 112919 1045 120619 1720 1Dichlorodifluoromethane ND

291 477 ugSample 112919 1045 120619 1720 1Ethylbenzene ND

291 291 ugSample 112919 1045 120619 1720 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

291 768 ugSample 112919 1045 120619 1720 1Hexachlorobutadiene ND

279 279 ugSample 112919 1045 120619 1720 1HFPO dimer methyl ester as

HFPO-DA

ND

291 407 ugSample 112919 1045 120619 1720 1Isopropylbenzene ND

582 477 ugSample 112919 1045 120619 1720 1mp-Xylene ND

291 186 ugSample 112919 1045 120619 1720 1Methylene Chloride ND

291 140 ugSample 112919 1045 120619 1720 1Naphthalene ND

Eurofins TestAmerica Knoxville

12232019Page 26 of 820150

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-6Client Sample ID A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

n-Butylbenzene ND 291 745 ugSample 112919 1045 120619 1720 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

291 629 ugSample 112919 1045 120619 1720 1n-Propylbenzene ND

291 303 ugSample 112919 1045 120619 1720 1o-Xylene ND

291 570 ugSample 112919 1045 120619 1720 1sec-Butylbenzene ND

291 629 ugSample 112919 1045 120619 1720 1Styrene ND

291 512 ugSample 112919 1045 120619 1720 1tert-Butylbenzene ND

291 384 ugSample 112919 1045 120619 1720 1Tetrachloroethene ND

291 535 ugSample 112919 1045 120619 1720 1Toluene ND

291 303 ugSample 112919 1045 120619 1720 1trans-12-Dichloroethene ND

291 102 ugSample 112919 1045 120619 1720 1trans-13-Dichloropropene ND

291 210 ugSample 112919 1045 120619 1720 1Trichloroethene ND

582 559 ugSample 112919 1045 120619 1720 1Trichlorofluoromethane ND

582 140 ugSample 112919 1045 120619 1720 1Vinyl chloride ND

Tentatively Identified Compound None ugSample 112919 1045 120619 1720 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 119 70 - 160 112919 1045 120619 1720 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1045 120619 1720 157 - 152

Dibromofluoromethane (Surr) 104 112919 1045 120619 1720 162 - 134

Toluene-d8 (Surr) 96 112919 1045 120619 1720 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine ND 6480 3240 ugSample 112919 1045 121319 2337 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2560 1160 ugSample 112919 1045 121819 1503 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1057 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 127 50 - 200 120419 1005 120819 1057 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1503 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-7Client Sample ID A-5786 QC MEOH RBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 203 268 ugSample 112919 1045 120619 1404 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

406 406 ugSample 112919 1045 120619 1404 111133-Pentafluorobutane ND

203 293 ugSample 112919 1045 120619 1404 1111-Trichloroethane ND

Eurofins TestAmerica Knoxville

12232019Page 27 of 820151

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-7Client Sample ID A-5786 QC MEOH RBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

111-Trifluoro-22-dichloroethane ND 406 804 ugSample 112919 1045 120619 1404 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

406 406 ugSample 112919 1045 120619 1404 1111-Trifluoroethane ND

203 390 ugSample 112919 1045 120619 1404 11122-Tetrachloroethane ND

406 228 ugSample 112919 1045 120619 1404 1112-Trichloro-122-trifluoroethane ND

406 406 ugSample 112919 1045 120619 1404 1112-trichloro-1-fluoroethane ND

203 211 ugSample 112919 1045 120619 1404 1112-Trichloroethane ND

406 203 ugSample 112919 1045 120619 1404 111-Dichloro-1-fluoroethane ND

406 406 ugSample 112919 1045 120619 1404 111-dichloro-22-difluoroethane ND

406 406 ugSample 112919 1045 120619 1404 111-dichloro-22-difluoroethene ND

203 244 ugSample 112919 1045 120619 1404 111-Dichloroethane ND

203 301 ugSample 112919 1045 120619 1404 111-Dichloroethene ND

203 219 ugSample 112919 1045 120619 1404 111-Dichloropropene ND

406 406 ugSample 112919 1045 120619 1404 111-Difluoroethene ND

406 406 ugSample 112919 1045 120619 1404 1122-trichloro-11-difluoroethane ND

203 650 ugSample 112919 1045 120619 1404 1123-Trichlorobenzene ND

203 504 ugSample 112919 1045 120619 1404 1123-Trichloropropane ND

203 683 ugSample 112919 1045 120619 1404 1124-Trichlorobenzene ND

203 423 ugSample 112919 1045 120619 1404 1124-Trimethylbenzene ND

406 715 ugSample 112919 1045 120619 1404 112-Dibromo-3-Chloropropane ND

203 268 ugSample 112919 1045 120619 1404 112-Dibromoethane (EDB) ND

406 406 ugSample 112919 1045 120619 1404 112-dichloro-11-difluoroethane ND

203 358 ugSample 112919 1045 120619 1404 112-Dichlorobenzene ND

203 341 ugSample 112919 1045 120619 1404 112-Dichloroethane ND

203 203 ugSample 112919 1045 120619 1404 112-Dichloropropane ND

203 423 ugSample 112919 1045 120619 1404 1135-Trimethylbenzene ND

203 349 ugSample 112919 1045 120619 1404 113-Dichlorobenzene ND

203 228 ugSample 112919 1045 120619 1404 113-Dichloropropane ND

203 406 ugSample 112919 1045 120619 1404 114-Dichlorobenzene ND

406 414 ugSample 112919 1045 120619 1404 11-Chloro-11-difluoroethane ND

406 406 ugSample 112919 1045 120619 1404 122-dichloro-11-difluoroethylmethyl

ether

ND

203 593 ugSample 112919 1045 120619 1404 122-Dichloropropane ND

813 130 ugSample 112919 1045 120619 1404 12-Butanone (MEK) ND

406 601 ugSample 112919 1045 120619 1404 12-chloro-111444-hexafluoro-2-but

ene

ND

406 406 ugSample 112919 1045 120619 1404 12-Chloro-111-Trifluoroethane ND

203 382 ugSample 112919 1045 120619 1404 12-Chlorotoluene ND

813 187 ugSample 112919 1045 120619 1404 12-Hexanone ND

177 177 ugSample 112919 1045 120619 1404 12-MTP as HFPO ND

203 423 ugSample 112919 1045 120619 1404 14-Chlorotoluene ND

203 544 ugSample 112919 1045 120619 1404 14-Isopropyltoluene ND

813 130 ugSample 112919 1045 120619 1404 14-Methyl-2-pentanone (MIBK) ND

813 479 ugSample 112919 1045 120619 1404 1Acetone ND

203 390 ugSample 112919 1045 120619 1404 1Benzene ND

203 284 ugSample 112919 1045 120619 1404 1Bromobenzene ND

203 455 ugSample 112919 1045 120619 1404 1Bromochloromethane ND

203 349 ugSample 112919 1045 120619 1404 1Bromodichloromethane ND

203 618 ugSample 112919 1045 120619 1404 1Bromoform ND

406 236 ugSample 112919 1045 120619 1404 1Bromomethane ND

Eurofins TestAmerica Knoxville

12232019Page 28 of 820152

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-7Client Sample ID A-5786 QC MEOH RBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Carbon disulfide ND 203 504 ugSample 112919 1045 120619 1404 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

203 268 ugSample 112919 1045 120619 1404 1Carbon tetrachloride ND

596 596 ugSample 112919 1045 120619 1404 1Carbonyl Difluoride ND

203 293 ugSample 112919 1045 120619 1404 1Chlorobenzene ND

203 439 ugSample 112919 1045 120619 1404 1Chlorodibromomethane ND

406 894 ugSample 112919 1045 120619 1404 1Chloroethane ND

203 236 ugSample 112919 1045 120619 1404 1Chloroform ND

406 169 ugSample 112919 1045 120619 1404 1Chloromethane ND

203 163 ugSample 112919 1045 120619 1404 1cis-12-Dichloroethene ND

203 349 ugSample 112919 1045 120619 1404 1cis-13-Dichloropropene ND

203 195 ugSample 112919 1045 120619 1404 1Dibromomethane ND

406 715 ugSample 112919 1045 120619 1404 1Dichlorodifluoromethane ND

203 333 ugSample 112919 1045 120619 1404 1Ethylbenzene ND

203 203 ugSample 112919 1045 120619 1404 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

203 536 ugSample 112919 1045 120619 1404 1Hexachlorobutadiene ND

195 195 ugSample 112919 1045 120619 1404 1HFPO dimer methyl ester as

HFPO-DA

ND

203 284 ugSample 112919 1045 120619 1404 1Isopropylbenzene ND

406 333 ugSample 112919 1045 120619 1404 1mp-Xylene ND

203 130 ugSample 112919 1045 120619 1404 1Methylene Chloride 131 J B

203 975 ugSample 112919 1045 120619 1404 1Naphthalene ND

203 520 ugSample 112919 1045 120619 1404 1n-Butylbenzene ND

203 439 ugSample 112919 1045 120619 1404 1n-Propylbenzene ND

203 211 ugSample 112919 1045 120619 1404 1o-Xylene ND

203 398 ugSample 112919 1045 120619 1404 1sec-Butylbenzene ND

203 439 ugSample 112919 1045 120619 1404 1Styrene ND

203 358 ugSample 112919 1045 120619 1404 1tert-Butylbenzene ND

203 268 ugSample 112919 1045 120619 1404 1Tetrachloroethene ND

203 374 ugSample 112919 1045 120619 1404 1Toluene ND

203 211 ugSample 112919 1045 120619 1404 1trans-12-Dichloroethene ND

203 715 ugSample 112919 1045 120619 1404 1trans-13-Dichloropropene ND

203 146 ugSample 112919 1045 120619 1404 1Trichloroethene ND

406 390 ugSample 112919 1045 120619 1404 1Trichlorofluoromethane ND

406 975 ugSample 112919 1045 120619 1404 1Vinyl chloride ND

Cyclohexane 349 T J N ugSample 442 110-82-7 112919 1045 120619 1404 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 116 70 - 160 112919 1045 120619 1404 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 110 112919 1045 120619 1404 157 - 152

Dibromofluoromethane (Surr) 104 112919 1045 120619 1404 162 - 134

Toluene-d8 (Surr) 97 112919 1045 120619 1404 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine ND 4330 2170 ugSample 112919 1045 121319 2358 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

1790 813 ugSample 112919 1045 121819 1524 20Hydrogen Fluoride ND

Eurofins TestAmerica Knoxville

12232019Page 29 of 820153

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-7Client Sample ID A-5786 QC MEOH RBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 00106 J 00250 000500 ugSample 120419 1005 120819 1100 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 125 50 - 200 120419 1005 120819 1100 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1503 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-8Client Sample ID A-5787 QC MEOH TBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 154 203 ugSample 112919 1045 120619 1428 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

308 308 ugSample 112919 1045 120619 1428 111133-Pentafluorobutane ND

154 222 ugSample 112919 1045 120619 1428 1111-Trichloroethane ND

308 609 ugSample 112919 1045 120619 1428 1111-Trifluoro-22-dichloroethane ND

308 308 ugSample 112919 1045 120619 1428 1111-Trifluoroethane ND

154 295 ugSample 112919 1045 120619 1428 11122-Tetrachloroethane ND

308 172 ugSample 112919 1045 120619 1428 1112-Trichloro-122-trifluoroethane ND

308 308 ugSample 112919 1045 120619 1428 1112-trichloro-1-fluoroethane ND

154 160 ugSample 112919 1045 120619 1428 1112-Trichloroethane ND

308 154 ugSample 112919 1045 120619 1428 111-Dichloro-1-fluoroethane ND

308 308 ugSample 112919 1045 120619 1428 111-dichloro-22-difluoroethane ND

308 308 ugSample 112919 1045 120619 1428 111-dichloro-22-difluoroethene ND

154 185 ugSample 112919 1045 120619 1428 111-Dichloroethane ND

154 228 ugSample 112919 1045 120619 1428 111-Dichloroethene ND

154 166 ugSample 112919 1045 120619 1428 111-Dichloropropene ND

308 308 ugSample 112919 1045 120619 1428 111-Difluoroethene ND

308 308 ugSample 112919 1045 120619 1428 1122-trichloro-11-difluoroethane ND

154 492 ugSample 112919 1045 120619 1428 1123-Trichlorobenzene ND

154 382 ugSample 112919 1045 120619 1428 1123-Trichloropropane ND

154 517 ugSample 112919 1045 120619 1428 1124-Trichlorobenzene ND

154 320 ugSample 112919 1045 120619 1428 1124-Trimethylbenzene ND

308 542 ugSample 112919 1045 120619 1428 112-Dibromo-3-Chloropropane ND

154 203 ugSample 112919 1045 120619 1428 112-Dibromoethane (EDB) ND

308 308 ugSample 112919 1045 120619 1428 112-dichloro-11-difluoroethane ND

154 271 ugSample 112919 1045 120619 1428 112-Dichlorobenzene ND

154 259 ugSample 112919 1045 120619 1428 112-Dichloroethane ND

154 154 ugSample 112919 1045 120619 1428 112-Dichloropropane ND

154 320 ugSample 112919 1045 120619 1428 1135-Trimethylbenzene ND

154 265 ugSample 112919 1045 120619 1428 113-Dichlorobenzene ND

154 172 ugSample 112919 1045 120619 1428 113-Dichloropropane ND

154 308 ugSample 112919 1045 120619 1428 114-Dichlorobenzene ND

308 314 ugSample 112919 1045 120619 1428 11-Chloro-11-difluoroethane ND

308 308 ugSample 112919 1045 120619 1428 122-dichloro-11-difluoroethylmethyl

ether

ND

Eurofins TestAmerica Knoxville

12232019Page 30 of 820154

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-8Client Sample ID A-5787 QC MEOH TBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

22-Dichloropropane ND 154 449 ugSample 112919 1045 120619 1428 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

616 985 ugSample 112919 1045 120619 1428 12-Butanone (MEK) ND

308 455 ugSample 112919 1045 120619 1428 12-chloro-111444-hexafluoro-2-but

ene

ND

308 308 ugSample 112919 1045 120619 1428 12-Chloro-111-Trifluoroethane ND

154 289 ugSample 112919 1045 120619 1428 12-Chlorotoluene ND

616 142 ugSample 112919 1045 120619 1428 12-Hexanone ND

135 135 ugSample 112919 1045 120619 1428 12-MTP as HFPO ND

154 320 ugSample 112919 1045 120619 1428 14-Chlorotoluene ND

154 412 ugSample 112919 1045 120619 1428 14-Isopropyltoluene ND

616 985 ugSample 112919 1045 120619 1428 14-Methyl-2-pentanone (MIBK) ND

616 363 ugSample 112919 1045 120619 1428 1Acetone ND

154 295 ugSample 112919 1045 120619 1428 1Benzene ND

154 215 ugSample 112919 1045 120619 1428 1Bromobenzene ND

154 345 ugSample 112919 1045 120619 1428 1Bromochloromethane ND

154 265 ugSample 112919 1045 120619 1428 1Bromodichloromethane ND

154 468 ugSample 112919 1045 120619 1428 1Bromoform ND

308 178 ugSample 112919 1045 120619 1428 1Bromomethane ND

154 382 ugSample 112919 1045 120619 1428 1Carbon disulfide ND

154 203 ugSample 112919 1045 120619 1428 1Carbon tetrachloride ND

451 451 ugSample 112919 1045 120619 1428 1Carbonyl Difluoride ND

154 222 ugSample 112919 1045 120619 1428 1Chlorobenzene ND

154 332 ugSample 112919 1045 120619 1428 1Chlorodibromomethane ND

308 677 ugSample 112919 1045 120619 1428 1Chloroethane ND

154 178 ugSample 112919 1045 120619 1428 1Chloroform ND

308 128 ugSample 112919 1045 120619 1428 1Chloromethane ND

154 123 ugSample 112919 1045 120619 1428 1cis-12-Dichloroethene ND

154 265 ugSample 112919 1045 120619 1428 1cis-13-Dichloropropene ND

154 148 ugSample 112919 1045 120619 1428 1Dibromomethane ND

308 542 ugSample 112919 1045 120619 1428 1Dichlorodifluoromethane ND

154 252 ugSample 112919 1045 120619 1428 1Ethylbenzene ND

154 154 ugSample 112919 1045 120619 1428 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

154 406 ugSample 112919 1045 120619 1428 1Hexachlorobutadiene ND

148 148 ugSample 112919 1045 120619 1428 1HFPO dimer methyl ester as

HFPO-DA

ND

154 215 ugSample 112919 1045 120619 1428 1Isopropylbenzene ND

308 252 ugSample 112919 1045 120619 1428 1mp-Xylene ND

154 985 ugSample 112919 1045 120619 1428 1Methylene Chloride 101 J B

154 739 ugSample 112919 1045 120619 1428 1Naphthalene ND

154 394 ugSample 112919 1045 120619 1428 1n-Butylbenzene ND

154 332 ugSample 112919 1045 120619 1428 1n-Propylbenzene ND

154 160 ugSample 112919 1045 120619 1428 1o-Xylene ND

154 302 ugSample 112919 1045 120619 1428 1sec-Butylbenzene ND

154 332 ugSample 112919 1045 120619 1428 1Styrene ND

154 271 ugSample 112919 1045 120619 1428 1tert-Butylbenzene ND

154 203 ugSample 112919 1045 120619 1428 1Tetrachloroethene ND

154 283 ugSample 112919 1045 120619 1428 1Toluene ND

154 160 ugSample 112919 1045 120619 1428 1trans-12-Dichloroethene ND

Eurofins TestAmerica Knoxville

12232019Page 31 of 820155

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-8Client Sample ID A-5787 QC MEOH TBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

trans-13-Dichloropropene ND 154 542 ugSample 112919 1045 120619 1428 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

154 111 ugSample 112919 1045 120619 1428 1Trichloroethene ND

308 295 ugSample 112919 1045 120619 1428 1Trichlorofluoromethane ND

308 739 ugSample 112919 1045 120619 1428 1Vinyl chloride ND

Cyclohexane 417 T J N ugSample 442 110-82-7 112919 1045 120619 1428 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 119 70 - 160 112919 1045 120619 1428 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 112919 1045 120619 1428 157 - 152

Dibromofluoromethane (Surr) 105 112919 1045 120619 1428 162 - 134

Toluene-d8 (Surr) 96 112919 1045 120619 1428 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 9720 3280 1640 ugSample 112919 1045 121419 0018 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

1350 616 ugSample 112919 1045 121919 0919 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1103 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 125 50 - 200 120419 1005 120819 1103 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1503 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-9Client Sample ID A-5788 QC MEOH PBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 181 238 ugSample 112919 1045 120619 1453 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

361 361 ugSample 112919 1045 120619 1453 111133-Pentafluorobutane ND

181 260 ugSample 112919 1045 120619 1453 1111-Trichloroethane ND

361 715 ugSample 112919 1045 120619 1453 1111-Trifluoro-22-dichloroethane ND

361 361 ugSample 112919 1045 120619 1453 1111-Trifluoroethane ND

181 347 ugSample 112919 1045 120619 1453 11122-Tetrachloroethane ND

361 202 ugSample 112919 1045 120619 1453 1112-Trichloro-122-trifluoroethane ND

361 361 ugSample 112919 1045 120619 1453 1112-trichloro-1-fluoroethane ND

181 188 ugSample 112919 1045 120619 1453 1112-Trichloroethane ND

361 181 ugSample 112919 1045 120619 1453 111-Dichloro-1-fluoroethane ND

361 361 ugSample 112919 1045 120619 1453 111-dichloro-22-difluoroethane ND

361 361 ugSample 112919 1045 120619 1453 111-dichloro-22-difluoroethene ND

181 217 ugSample 112919 1045 120619 1453 111-Dichloroethane ND

Eurofins TestAmerica Knoxville

12232019Page 32 of 820156

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-9Client Sample ID A-5788 QC MEOH PBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

11-Dichloroethene ND 181 267 ugSample 112919 1045 120619 1453 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

181 195 ugSample 112919 1045 120619 1453 111-Dichloropropene ND

361 361 ugSample 112919 1045 120619 1453 111-Difluoroethene ND

361 361 ugSample 112919 1045 120619 1453 1122-trichloro-11-difluoroethane ND

181 578 ugSample 112919 1045 120619 1453 1123-Trichlorobenzene ND

181 448 ugSample 112919 1045 120619 1453 1123-Trichloropropane ND

181 607 ugSample 112919 1045 120619 1453 1124-Trichlorobenzene ND

181 375 ugSample 112919 1045 120619 1453 1124-Trimethylbenzene ND

361 635 ugSample 112919 1045 120619 1453 112-Dibromo-3-Chloropropane ND

181 238 ugSample 112919 1045 120619 1453 112-Dibromoethane (EDB) ND

361 361 ugSample 112919 1045 120619 1453 112-dichloro-11-difluoroethane ND

181 318 ugSample 112919 1045 120619 1453 112-Dichlorobenzene ND

181 303 ugSample 112919 1045 120619 1453 112-Dichloroethane ND

181 181 ugSample 112919 1045 120619 1453 112-Dichloropropane ND

181 375 ugSample 112919 1045 120619 1453 1135-Trimethylbenzene ND

181 311 ugSample 112919 1045 120619 1453 113-Dichlorobenzene ND

181 202 ugSample 112919 1045 120619 1453 113-Dichloropropane ND

181 361 ugSample 112919 1045 120619 1453 114-Dichlorobenzene ND

361 368 ugSample 112919 1045 120619 1453 11-Chloro-11-difluoroethane ND

361 361 ugSample 112919 1045 120619 1453 122-dichloro-11-difluoroethylmethyl

ether

ND

181 527 ugSample 112919 1045 120619 1453 122-Dichloropropane ND

722 116 ugSample 112919 1045 120619 1453 12-Butanone (MEK) ND

361 534 ugSample 112919 1045 120619 1453 12-chloro-111444-hexafluoro-2-but

ene

ND

361 361 ugSample 112919 1045 120619 1453 12-Chloro-111-Trifluoroethane ND

181 339 ugSample 112919 1045 120619 1453 12-Chlorotoluene ND

722 166 ugSample 112919 1045 120619 1453 12-Hexanone ND

158 158 ugSample 112919 1045 120619 1453 12-MTP as HFPO ND

181 375 ugSample 112919 1045 120619 1453 14-Chlorotoluene ND

181 484 ugSample 112919 1045 120619 1453 14-Isopropyltoluene ND

722 116 ugSample 112919 1045 120619 1453 14-Methyl-2-pentanone (MIBK) ND

722 426 ugSample 112919 1045 120619 1453 1Acetone ND

181 347 ugSample 112919 1045 120619 1453 1Benzene ND

181 253 ugSample 112919 1045 120619 1453 1Bromobenzene ND

181 404 ugSample 112919 1045 120619 1453 1Bromochloromethane ND

181 311 ugSample 112919 1045 120619 1453 1Bromodichloromethane ND

181 549 ugSample 112919 1045 120619 1453 1Bromoform ND

361 209 ugSample 112919 1045 120619 1453 1Bromomethane ND

181 448 ugSample 112919 1045 120619 1453 1Carbon disulfide ND

181 238 ugSample 112919 1045 120619 1453 1Carbon tetrachloride ND

529 529 ugSample 112919 1045 120619 1453 1Carbonyl Difluoride ND

181 260 ugSample 112919 1045 120619 1453 1Chlorobenzene ND

181 390 ugSample 112919 1045 120619 1453 1Chlorodibromomethane ND

361 794 ugSample 112919 1045 120619 1453 1Chloroethane ND

181 209 ugSample 112919 1045 120619 1453 1Chloroform ND

361 150 ugSample 112919 1045 120619 1453 1Chloromethane ND

181 144 ugSample 112919 1045 120619 1453 1cis-12-Dichloroethene ND

181 311 ugSample 112919 1045 120619 1453 1cis-13-Dichloropropene ND

Eurofins TestAmerica Knoxville

12232019Page 33 of 820157

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-9Client Sample ID A-5788 QC MEOH PBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Dibromomethane ND 181 173 ugSample 112919 1045 120619 1453 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

361 635 ugSample 112919 1045 120619 1453 1Dichlorodifluoromethane ND

181 296 ugSample 112919 1045 120619 1453 1Ethylbenzene ND

181 181 ugSample 112919 1045 120619 1453 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

181 477 ugSample 112919 1045 120619 1453 1Hexachlorobutadiene ND

174 174 ugSample 112919 1045 120619 1453 1HFPO dimer methyl ester as

HFPO-DA

ND

181 253 ugSample 112919 1045 120619 1453 1Isopropylbenzene ND

361 296 ugSample 112919 1045 120619 1453 1mp-Xylene ND

181 116 ugSample 112919 1045 120619 1453 1Methylene Chloride 136 J B

181 867 ugSample 112919 1045 120619 1453 1Naphthalene ND

181 462 ugSample 112919 1045 120619 1453 1n-Butylbenzene ND

181 390 ugSample 112919 1045 120619 1453 1n-Propylbenzene ND

181 188 ugSample 112919 1045 120619 1453 1o-Xylene ND

181 354 ugSample 112919 1045 120619 1453 1sec-Butylbenzene ND

181 390 ugSample 112919 1045 120619 1453 1Styrene ND

181 318 ugSample 112919 1045 120619 1453 1tert-Butylbenzene ND

181 238 ugSample 112919 1045 120619 1453 1Tetrachloroethene ND

181 332 ugSample 112919 1045 120619 1453 1Toluene ND

181 188 ugSample 112919 1045 120619 1453 1trans-12-Dichloroethene ND

181 635 ugSample 112919 1045 120619 1453 1trans-13-Dichloropropene ND

181 130 ugSample 112919 1045 120619 1453 1Trichloroethene ND

361 347 ugSample 112919 1045 120619 1453 1Trichlorofluoromethane ND

361 867 ugSample 112919 1045 120619 1453 1Vinyl chloride ND

Cyclohexane 280 T J N ugSample 442 110-82-7 112919 1045 120619 1453 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1045 120619 1453 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 108 112919 1045 120619 1453 157 - 152

Dibromofluoromethane (Surr) 104 112919 1045 120619 1453 162 - 134

Toluene-d8 (Surr) 96 112919 1045 120619 1453 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 2450 J 3850 1930 ugSample 112919 1045 121419 0039 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

1590 722 ugSample 112919 1045 121919 0940 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1106 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 131 50 - 200 120419 1005 120819 1106 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1503 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Eurofins TestAmerica Knoxville

12232019Page 34 of 820158

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17462-1ProjectSite VEN MM-18 Field QC

Method 8260B - Volatile Organic Compounds (GCMS)Prep MeOH Prep

2501112-Tetrachloroethane ugSample

Analyte UnitsMDLRL

0330

50011133-Pentafluorobutane ugSample0500

250111-Trichloroethane ugSample0360

500111-Trifluoro-22-dichloroethane ugSample0990

500111-Trifluoroethane ugSample0500

2501122-Tetrachloroethane ugSample0480

500112-Trichloro-122-trifluoroethane ugSample0280

500112-trichloro-1-fluoroethane ugSample0500

250112-Trichloroethane ugSample0260

50011-Dichloro-1-fluoroethane ugSample250

50011-dichloro-22-difluoroethane ugSample0500

50011-dichloro-22-difluoroethene ugSample0500

25011-Dichloroethane ugSample0300

25011-Dichloroethene ugSample0370

25011-Dichloropropene ugSample0270

50011-Difluoroethene ugSample500

500122-trichloro-11-difluoroethane ugSample0500

250123-Trichlorobenzene ugSample0800

250123-Trichloropropane ugSample0620

250124-Trichlorobenzene ugSample0840

250124-Trimethylbenzene ugSample0520

50012-Dibromo-3-Chloropropane ugSample0880

25012-Dibromoethane (EDB) ugSample0330

50012-dichloro-11-difluoroethane ugSample0500

25012-Dichlorobenzene ugSample0440

25012-Dichloroethane ugSample0420

25012-Dichloropropane ugSample0250

250135-Trimethylbenzene ugSample0520

25013-Dichlorobenzene ugSample0430

25013-Dichloropropane ugSample0280

25014-Dichlorobenzene ugSample0500

5001-Chloro-11-difluoroethane ugSample0510

50022-dichloro-11-difluoroethylmethyl ether ugSample0500

25022-Dichloropropane ugSample0730

1002-Butanone (MEK) ugSample160

5002-chloro-111444-hexafluoro-2-butene ugSample0740

5002-Chloro-111-Trifluoroethane ugSample0500

2502-Chlorotoluene ugSample0470

1002-Hexanone ugSample230

2502-MTP as HFPO ugSample250

2504-Chlorotoluene ugSample0520

2504-Isopropyltoluene ugSample0670

1004-Methyl-2-pentanone (MIBK) ugSample160

100Acetone ugSample590

250Benzene ugSample0480

250Bromobenzene ugSample0350

250Bromochloromethane ugSample0560

250Bromodichloromethane ugSample0430

250Bromoform ugSample0760

500Bromomethane ugSample290

250Carbon disulfide ugSample0620

250Carbon tetrachloride ugSample0330

Eurofins TestAmerica Knoxville

12232019Page 35 of 820159

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17462-1ProjectSite VEN MM-18 Field QC

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)Prep MeOH Prep

100Carbonyl Difluoride ugSample

Analyte UnitsMDLRL

100

250Chlorobenzene ugSample0360

250Chlorodibromomethane ugSample0540

500Chloroethane ugSample110

250Chloroform ugSample0290

500Chloromethane ugSample208

250cis-12-Dichloroethene ugSample0200

250cis-13-Dichloropropene ugSample0430

250Dibromomethane ugSample0240

500Dichlorodifluoromethane ugSample0880

250Ethylbenzene ugSample0410

250Heptafluoropropyl 1222-tetrafluoroethyl ether ugSample250

250Hexachlorobutadiene ugSample0660

250HFPO dimer methyl ester as HFPO-DA ugSample250

250Isopropylbenzene ugSample0350

500mp-Xylene ugSample0410

250Methylene Chloride ugSample160

250Naphthalene ugSample120

250n-Butylbenzene ugSample0640

250n-Propylbenzene ugSample0540

250o-Xylene ugSample0260

250sec-Butylbenzene ugSample0490

250Styrene ugSample0540

250tert-Butylbenzene ugSample0440

250Tetrachloroethene ugSample0330

250Toluene ugSample0460

250trans-12-Dichloroethene ugSample0260

250trans-13-Dichloropropene ugSample0880

250Trichloroethene ugSample0180

500Trichlorofluoromethane ugSample0480

500Vinyl chloride ugSample120

Method 9056 - Anions Ion ChromatographyPrep MeOH Prep

110Hydrogen Fluoride ugSample

Analyte UnitsMDLRL

500

1000Total Fluorine ugSample500

Method 8321A - PFOA and PFOSPrep None

0100HFPO-DA ugSample

Analyte UnitsMDLRL

00200

Eurofins TestAmerica Knoxville

12232019Page 36 of 820160

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

APPENDIX D SAMPLE CALCULATIONS

161

123120191101 AM 112219 Div Stack M0010

EXAMPLE CALCULATIONS FORVOLUMETRIC FLOW AND MOISTURE AND ISOKINETICS

Client Chemours Facility Fayetteville NCTest Number Run 1 Test Date 112219Test Location Division Stack Test Period 0826-1022

1 Volume of dry gas sampled at standard conditions (68 deg F 2992 in Hg) dscf

delta H 1764 x Y x Vm x ( Pb + ------------ )

136Vm(std) = --------------------------------------------

(Tm + 460)

14031764 x 09972 x 63136 x ( 3002 + --------------------- )

136Vm(std) = ------------------------------------------------------------ = 64704

5704 + 460

Where

Vm(std) = Volume of gas sample measured by the dry gas metercorrected to standard conditions dscf

Vm = Volume of gas sample measured by the dry gas meterat meter conditions dcf

Pb = Barometric Pressure in Hgdelt H = Average pressure drop across the orifice meter in H2O

Tm = Average dry gas meter temperature deg FY = Dry gas meter calibration factor

1764 = Factor that includes ratio of standard temperature (528 deg R)to standard pressure (2992 in Hg) deg Rin Hg

136 = Specific gravity of mercury

2 Volume of water vapor in the gas sample corrected to standard conditions scf

Vw(std) = (004707 x Vwc) + (004715 x Wwsg)

Vw(std) = ( 004707 x 100 ) + ( 004715 x 244 ) = 162

Where

Vw(std) = Volume of water vapor in the gas sample corrected tostandard conditions scf

Vwc = Volume of liquid condensed in impingers mlWwsg = Weight of water vapor collected in silica gel g

004707 = Factor which includes the density of water(0002201 lbml) the molecular weight of water(180 lblb-mole) the ideal gas constant2185 (in Hg) (ft3)lb-mole)(deg R) absolutetemperature at standard conditions (528 deg R) absolutepressure at standard conditions (2992 in Hg) ft3ml

004715 = Factor which includes the molecular weight of water(180 lblb-mole) the ideal gas constant2185 (in Hg) (ft3)lb-mole)(deg R) absolutetemperature at standard conditions (528 deg R) absolutepressure at standard conditions (2992 in Hg) and4536 glb ft3g

162

123120191101 AM 112219 Div Stack M0010

3 Moisture content

Vw(std)bws = -------------------------

Vw(std) + Vm(std)

162bws = ------------------------- = 0024

162 + 64704

Where

bws = Proportion of water vapor by volume in the gasstream dimensionless

4 Mole fraction of dry gas

Md = 1 - bws

Md = 1 - 0024 = 0976

Where

Md = Mole fraction of dry gas dimensionless

5 Dry molecular weight of gas stream lblb-mole

MWd = ( 0440 x CO2 ) + ( 0320 x O2 ) + ( 0280 x ( N2 + CO) )

MWd = ( 0440 x 00 ) + ( 0320 x 209 ) + (0280 x ( 791 + 000 ))

MWd = 2884

Where

MWd = Dry molecular weight lblb-mole CO2 = Percent carbon dioxide by volume dry basis

O2 = Percent oxygen by volume dry basis N2 = Percent nitrogen by volume dry basis

CO = Percent carbon monoxide by volume dry basis0440 = Molecular weight of carbon dioxide divided by 1000320 = Molecular weight of oxygen divided by 1000280 = Molecular weight of nitrogen or carbon monoxide

divided by 100

6 Actual molecular weight of gas stream (wet basis) lblb-mole

MWs = ( MWd x Md ) + ( 18 x ( 1 - Md ))

MWs = ( 2884 x 0976 ) +( 18 ( 1 - 0976 )) = 2857

Where

MWs = Molecular weight of wet gas lblb-mole18 = Molecular weight of water lblb-mole

163

123120191101 AM 112219 Div Stack M0010

7 Average velocity of gas stream at actual conditions ftsec

Ts (avg)Vs = 8549 x Cp x ((delt p)12)avg x ( ---------------- )12

Ps x MWs

532Vs = 8549 x 084 x 145039 x ( -------------------- )^12 = 820

2999 x 2857Where

Vs = Average gas stream velocity ftsec (lblb-mole)(in Hg)12

8549 = Pitot tube constant ftsec x ------------------------------------ (deg R)(in H2O)

Cp = Pitot tube coefficient dimensionlessTs = Absolute gas stream temperature deg R = Ts deg F + 460

P(static)Ps = Absolute gas stack pressure in Hg = Pb + --------------

136delt p = Velocity head of stack in H2O

8 Average gas stream volumetric flow rate at actual conditions wacfmin

Qs(act) = 60 x Vs x As

Qs(act) = 60 x 820 x 707 = 34799

Where

Qs(act) = Volumetric flow rate of wet stack gas at actualconditions wacfmin

As = Cross-sectional area of stack ft260 = Conversion factor from seconds to minutes

9 Average gas stream dry volumetric flow rate at standard conditions dscfmin

PsQs(std) = 1764 x Md x ----- x Qs(act)

Ts

2999Qs(std) = 1764 x 0976 x -------------------- x 34799

5316

Qs(std) = 33787

Where

Qs(std) = Volumetric flow rate of dry stack gas at standardconditions dscfmin

164

123120191101 AM 112219 Div Stack M0010

10 Isokinetic variation calculated from intermediate values percent

17327 x Ts x Vm(std)I = -----------------------------------

Vs x O x Ps x Md x (Dn)2

17327 x 532 x 64704I = -------------------------------------------------- = 1010

820 x 96 x 2999 x 0976 x (0160)^2Where

I = Percent of isokinetic samplingO = Total sampling time minutes

Dn = Diameter of nozzle inches17327 = Factor which includes standard temperature (528 deg R)

standard pressure (2992 in Hg) the formula forcalculating area of circle D24 conversion of squarefeet to square inches (144) conversion of secondsto minutes (60) and conversion to percent (100)(in Hg)(in2)(min) (deg R)(ft2)(sec)

165

1320201218 PM 112219 Div Stack M0010

SAMPLE CALCULATIONS FORHFPO DIMER ACID (METHOD 0010)

Client Chemours Plant Fayetteville NCTest Number Run 1 Test Date 112219Test Location Divison Stack Test Period 0826-1022

1 HFPO Dimer Acid concentration lbsdscf

W x 22046 x 10-9

Conc1 = ------------------------------ Vm(std)

223 x 22046 x 10-9Conc1 = ------------------------------

64704

Conc1 = 760E-10

Where

W = Weight of HFPO Dimer Acid collected in sample in ug

Conc1 = Division Stack HFPO Dimer Acid concentration lbsdscf

22046x10-9 = Conversion factor from ug to lbs

2 HFPO Dimer Acid concentration ugdscm

Conc2 = W ( Vm(std) x 002832)

Conc2 = 223 ( 64704 x 002832 )

Conc2 = 122E+01

Where

Conc2 = Division Stack HFPO Dimer Acid concentration ugdscm

002832 = Conversion factor from cubic feet to cubic meters

166

1320201218 PM 112219 Div Stack M0010

3 HFPO Dimer Acid mass emission rate lbshr

MR1(Outlet) = Conc1 x Qs(std) x 60 minhr

MR1(Outlet) = 760E-10 x 33787 x 60

MR1(Outlet) = 154E-03

Where

MR1(Outlet) = Division Stack HFPO Dimer Acid mass emission rate lbshr

4 HFPO Dimer Acid mass emission rate gsec

MR2(Outlet) = PMR1 x 45359 3600

MR2(Outlet) = 154E-03 x 45359 3600

MR2(Outlet) = 194E-04

Where

MR2(Outlet) = Division Stack HFPO Dimer Acid mass emission rate gsec

4536 = Conversion factor from pounds to grams

3600 = Conversion factor from hours to seconds

167

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

APPENDIX E EQUIPMENT CALIBRATION RECORDS

168

P-694 all in oneMOD

Pitot Tube Identification Number

Inspection Date 21919 Individual Conducting Inspection

Distance to A Plane (PA) - inches 046 PASSDistance to B Plane (PB) - inches 046 PASS

Pitot OD (Dt) - inches 0375105 Dt lt P lt 15 Dt PA must Equal PB

Q1 and Q2 must be lt 10o

B1 or B2 must be lt 5o

Z must be lt 0125 inches

W must be lt 003125 inches

X must be gt 075 inches

Thermocouple meets the Distance Criteria in the adjacent figure

Impact Pressure Opening Plane is above the Nozzle Entry Plane

NO

NA

NO

NA

PASS

PASS

PASS

Distance between Sample Nozzle and Pitot (X) - inches

Thermocouple meets the Distance Criteria in the adjacent figure

YES

YES

PASS

NO YES

NA

0

0

Angle of B1 from vertical A Tube- degrees (absolute) 0

0

08

Horizontal offset between A and B Tubes (Z) - inches

Vertical offset between A and B Tubes (W) - inches

0004

0015

PASSFAIL

Angle of B1 from vertical B Tube- degrees (absolute)

PASS

PASS

PASS

P-694

ks

Angle of Q1 from vertical A Tube- degrees (absolute)

Angle of Q2 from vertical B Tube- degrees (absolute)

Type S Pitot Tube Inspection Data Form

Are Open Faces Aligned Perpendicular to the Tube Axis

YES NOPASS

If all Criteria PASS Cp is equal to 084

Sample Probe

Type S Pitot Tube

Temperature Sensor

Dt

2 inch

Sample Probe

Temperature Sensor

DtType S Pitot Tube

3 inch

34 inch

A B

Face Opening Planes

AB

AB

Q1 Q1 Q2

B B

B

A A

A

FlowFlow

B1(+)B1(-)

B2(+ or -)

B1(+ or -)

B-Side Plane

AB

PA

PB

A-Side PlaneDt

X

Sampling D

Impact Pressure Opening Plane

Nozzle Entry Plane

W

B

A

B

A

Z

169

Long Cal Box_30 2-21-19

Calibrator MDW Meter Box Number 30 Ambient Temp 72

Date 21-Feb-19 Wet Test Meter Number P-2952 Temp Reference Source

Dry Gas Meter Number 17485131

Setting

in H20

(∆H) ft3

(Vw)ft3

(Vd)

oF (Tw)

Outlet oF (Tdo)

Inlet oF (Tdi)

Average oF (Td)

Time min (O)

Y ∆H

905750 7000 7000910724 7000 7000

4974 7000 7000911701 7100 7100916685 7100 7100

4984 7100 7100917680 7200 7200927695 7400 740010015 7300 7300

928690 7400 7400938780 7500 750010090 7450 7450

939800 7600 7600949930 7700 770010130 7650 7650

Average 09972 18715

Vw - Gas Volume passing through the wet test meter 0 - Time of calibration runVd - Gas Volume passing through the dry gas meter Pb - Barometric PressureTw - Temp of gas in the wet test meterTdi - Temp of the inlet gas of the dry gas meterTdo - Temp of the outlet gas of the dry gas meterTd - Average temp of the gas in the dry gas meter

1 2 3 4 5 632 32 32 32 32 320 00

212 213 213 212 212 2124 -01932 933 933 932 932 9324 00

1832 1832 1832 1832 1832 18320 001 - Channel Temps must agree with +- 5oF or 3oC

2 - Acceptable Temperature Difference less than 15

20 100

18501128 10002

Dry Gas Meter

700

05 700

10

Long Cal and Temperature Cal Datasheet for Standard Dry Gas Meter Console

Orifice Manometer

Wet Test Meter

Dry gas Meter

Gas Volume

1822450 700 700 90

Y - Ratio of accuracy of wet test meter to dry gas meter

∆H - Pressure differential across orifice

30 100 700

TemperaturesWet Test

Meter

680

15 100

10007

50

700

107 09910

725

745

18894

18851130 09946

150 09995

9321832

Reference Temperature

Select Temperature

oC oF

21232

Average Temperature

Reading

Thermocouple Simulator

(Accuracy +- 1oF)

Temp

Difference 2

()

Temperature Reading from Individual Thermocouple Input 1

Channel Number

19103

Calibration Results

Baro Press in Hg ( Pb)

2987

760

( ) ( )

( )( ) 2

Vw

O460tw

460tdPb

H03170H

460tw613

HPbVd

)460td(PbVwY

lowast+

lowast

+lowast

∆lowast=∆

+lowast

+lowast

+lowastlowast=

( )( ) ( )( )( )

+

+minus+=

460FTempferenceRe

460FTempTest460FTempferenceReDiffTemp

o

oo

170

Y Factor Calibration Check CalculationMODIFIED METHOD 0010 TEST TRAIN

DIVISION STACKMETER BOX NO 30

11222019Run 1 Run 2

MWd = Dry molecular weight source gas lblb-mole032 = Molecular weight of oxygen divided by 100044 = Molecular weight of carbon dioxide divided by 100028 = Molecular weight of nitrogen or carbon monoxide divided by 100

CO2 = Percent carbon dioxide by volume dry basis 00 00 O2 = Percent oxygen by volume dry basis 209 209

MWd = ( 032 O2 ) + ( 044 CO2 ) + ( 028 ( 100 - ( CO2 + O2 )))

MWd = ( 032 209 ) + ( 044 0 ) + ( 028 ( 100 - ( 0 + 209 )))

MWd = ( 669 ) + ( 000 ) + ( 2215 )

MWd = 2884 2884

Tma = Source Temperature absolute(oR)Tm = Average dry gas meter temperature deg F 570 652

Tma = Ts + 460

Tma = 5704 + 460

Tma = 51704 52519

Ps = Absolute meter pressure inches Hg1360 = Specific gravity of mercury

delta H = Avg pressure drop across the orifice meter during sampling in H2O 140 100Pb = Barometric Pressure in Hg 3002 3002

Pm = Pb + (delta H 136)

Pm = 3002 + ( 14025 136)

Pm = 3012 3009

Yqa = dry gas meter calibration check value dimensionless003 = (2992528)(075)2 (in HgdegR) cfm2

2900 = dry molecular weight of air lblb-moleVm = Volume of gas sample measured by the dry gas meter at meter conditions dcf 63136 47088

Y = Dry gas meter calibration factor (based on full calibration) 09972 09972Delta H = Dry Gas meter orifice calibration coefficient in H2O 18715 18715

avg SQRT Delta H = Avg SQRT press drop across the orifice meter during sampling in H2O 11783 09984O = Total sampling time minutes 96 84

Yqa = (O Vm ) SQRT ( 00319 Tma 29 ) ( Delta H Pm MWd ) avg SQRT Delta H

Yqa = ( 9600 6314 ) SQRT ( 00319 51704 29 ) ( 187 3012 2884 ) 118

Yqa = 1521 SQRT 478315 1625473 118

Yqa = 09719 09742

Diff = Absolute difference between Yqa and Y 254 231

Diff = (( Y - Yqa ) Y ) 100

Diff = (( 09972 - 0972 ) 09972 ) 100

Average Diff = 243

Allowable = 50

1220201119 AM 112219 Div Stack M0010171

Long Cal Vost Box 5 11-29-18

Calibrator PM VOST Box Number VOST 5 Ambient Temp 72

Date 29-Nov-18 Wet Test Meter Number 10BB-1 Temp Reference Source

Dry Gas Meter Number 3605443

Resultsin H20

(∆H)liters (Vw)

liters (Vd)

oF (Tw)

Outlet oC (Tdo)

Inlet oC (Tdi)

Average oF (Td)

Time min (O)

Y

0000 2000 20004890 2050 20504890 2025 21600000 2050 20509772 2100 21009772 2075 22800000 2220 222014768 2220 222014768 2220 22200000 2280 228020034 2280 228020034 2280 2280

Average 10088

Vw - Gas Volume passing through the wet test meter 0 - Time of calibration runVd - Gas Volume passing through the dry gas meter Pb - Barometric PressureTw - Temp of gas in the wet test meterTdi - Temp of the inlet gas of the dry gas meter

Tdo - Temp of the outlet gas of the dry gas meterTd - Average temp of the gas in the dry gas meter

oC oF1 2 3 4 5 60 0 0 0 00 00

100 100 100 100 1000 00500 500 500 500 5000 001000 1000 1000 1000 10000 00

1 - Channel Temps must agree with +- 5oF or 3oC

2 - Acceptable Temperature Difference less than 15

Wet Test Meter

Dry gas MeterWet Test

Meter

Gas Volume

50045 725

10154

685 102 10137

695085 100

2975

730 200 09943

110 10118

100

720

Dry Gas Meter

Temperatures

20 200

725

725

150 72515 17

Setting

Roto-meter

Liters per minute

12

Orifice Manometer

120

Long Cal and Temperature Cal Datasheet for VOST Dry Gas Meter Console

∆H - Pressure differential across orifice

Y - Ratio of accuracy of wet test meter to dry gas meter

Thermocouple Simulator

(Accuracy +- 1oF)

Baro Press in Hg ( Pb)

20 23

050 070

100

Temp

Difference 2 ()

Average Temperature

Reading

0

500100

1000

Channel Number

Temperature Reading from Individual Thermocouple Input 1

Select Temperature

Reference Temperature

( ) ( )

( )( ) 2

Vw

O460tw

460tdPb

H03170H

460tw613

HPbVd

)460td(PbVwY

lowast+

lowast

+lowast∆lowast

=∆

+lowast

+lowast

+lowastlowast=

( )( ) ( )( )( )

+

+minus+=

460FTempferenceRe

460FTempTest460FTempferenceReDiffTemp

o

oo

172

Long Cal Vost Box 8 9_21_2019

Calibrator MDW VOST Box Number VOST 8 Ambient Temp 73

Date 21-Sep-19 Wet Test Meter Number 10BB-1 Temp Reference Source

Dry Gas Meter Number 3602380

Resultsin H20

(∆H)liters (Vw)

liters (Vd)

oF (Tw)

Outlet oC (Tdo)

Inlet oC (Tdi)

Average oF (Td)

Time min (O)

Y

0000 2400 24002999 2400 24002999 2400 24000000 2400 24008960 2400 24008960 2400 24000000 2400 24009934 2400 24009934 2400 24000000 2400 240018700 2400 240018700 2400 2400

Average 10088

Vw - Gas Volume passing through the wet test meter 0 - Time of calibration runVd - Gas Volume passing through the dry gas meter Pb - Barometric PressureTw - Temp of gas in the wet test meterTdi - Temp of the inlet gas of the dry gas meter

Tdo - Temp of the outlet gas of the dry gas meterTd - Average temp of the gas in the dry gas meter

oC oF1 2 3 4 5 632 32 32 32 320 00212 212 212 212 2120 00932 932 932 932 9320 001829 1829 1829 1829 18290 01

1 - Channel Temps must agree with +- 5oF or 3oC

2 - Acceptable Temperature Difference less than 15

Wet Test Meter

Dry gas MeterWet Test

Meter

Gas Volume

30000 720

10093

750 118 10060

750035 90

3008

710 99 10099

100 10099

178

750

Dry Gas Meter

Temperatures

170 190

720

720

100 720

050

10 10

Setting

Roto-meter

Liters per minute

100

Orifice Manometer

050

1832

Long Cal and Temperature Cal Datasheet for VOST Dry Gas Meter Console

∆H - Pressure differential across orifice

Y - Ratio of accuracy of wet test meter to dry gas meter

Thermocouple Simulator

(Accuracy +- 1oF)

Baro Press in Hg ( Pb)

20 20

025 025

Channel Number

Temperature Reading from Individual Thermocouple Input 1 Temp

Difference 2 ()

Average Temperature

Reading

32

932212

Select Temperature

Reference Temperature

( ) ( )

( )( ) 2

Vw

O460tw

460tdPb

H03170H

460tw613

HPbVd

)460td(PbVwY

lowast+

lowast

+lowast∆lowast

=∆

+lowast

+lowast

+lowastlowast=

( )( ) ( )( )( )

+

+minus+=

460FTempferenceRe

460FTempTest460FTempferenceReDiffTemp

o

oo

173

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

APPENDIX F LIST OF PROJECT PARTICIPANTS

174

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

The following WESTON employees participated in this project

Paul Meeter Senior Project Manager

Jeff OrsquoNeill Senior Project Manager

Wes Fritz Senior Project Manager

Matt Winkeler Team Member

Kyle Schweitzer Team Member

Brandon Berger Team Member

175

  • ADPB5DBtmp
    • FIELD DATA CALCS
    • SemiVol Results
      • ADPD0DEtmp
        • Data input
        • results
          • ADP152tmp
            • SEMIVOLCALC
              • ADPD8Ftmp
                • Data input
                • results
                  • ADP2D63tmp
                    • results
                      • ADP5868tmp
                        • Data input
                          • ADPE9F3tmp
                            • results
                              • ADP2499tmp
                                • Data input
                                • results
                                  • ADP6F7Etmp
                                    • Data input
                                    • results

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

THE CHEMOURS COMPANY

FLOROMONOMERS MANUFACTURING PROCESS DIVISION STACK EMISSIONS TEST REPORT

TEST DATES 22 November and 4 December 2019

Weston Solutions Inc (WESTONreg) is a commercial laboratory operating within full accreditation of the Louisiana Environmental Laboratory Accreditation Program under Certificate Number 03024 The qualifications to provide defensible quality data as a certified commercial environmental testing firm as Agency Interest No 30815 was granted by the Louisiana Department of Environmental Quality under the Louisiana Administrative Code of LAC 331 Chapter 45 et al

I certify that I have personally examined and am familiar with the information contained herein Based on my information and belief formed after reasonable inquiry the statements and information in the document are true accurate and complete

Paul M Meeter Weston Solutions Inc

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 i

TABLE OF CONTENTS

Section Page

1 INTRODUCTION1

11 FACILITY AND BACKGROUND INFORMATION 1

12 TEST OBJECTIVES 1

13 TEST PROGRAM OVERVIEW 1

2 SUMMARY OF TEST RESULTS 4

3 PROCESS DESCRIPTIONS 6

31 FLUOROMONOMERS 6

32 PROCESS OPERATIONS AND PARAMETERS 6

4 DESCRIPTION OF TEST LOCATIONS 7

41 DIVISION STACK 7

5 SAMPLING AND ANALYTICAL METHODS 9

51 STACK GAS SAMPLING PROCEDURES 9

511 Pre-Test Determinations 9

52 STACK PARAMETERS 9

521 EPA Method 00109 522 EPA Method 0010 Sample Recovery 11 523 EPA Method 0010 Sample Analysis13

53 MM18 15

54 GAS COMPOSITION 17

6 DETAILED TEST RESULTS AND DISCUSSION 19 APPENDIX A PROCESS OPERATIONS DATA

APPENDIX B RAW AND REDUCED TEST DATA

APPENDIX C LABORATORY ANALYTICAL REPORT

APPENDIX D SAMPLE CALCULATIONS

APPENDIX E EQUIPMENT CALIBRATION RECORDS

APPENDIX F LIST OF PROJECT PARTICIPANTS

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 ii

LIST OF FIGURES

Title Page

Figure 4-1 Division Stack Test Port and Traverse Point Location 8

Figure 5-1 EPA Method 0010 Sampling Train 10

Figure 5-2 HFPO Dimer Acid Sample Recovery Procedures for Method 0010 14

Figure 5-3 Modified EPA Method 18 Sampling Train 16

Figure 5-4 WESTON Sampling System 18

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 iii

LIST OF TABLES

Title Page

Table 1-1 Sampling Plan for Division Stack 3

Table 2-1 Summary of HFPO Dimer Acid Division Stack Test Results 4

Table 2-2 Summary of Target Compound Division Stack Test Results 4

Table 6-1 Summary of HFPO Dimer Acid Test Data and Test Results Division Stack ndash M0010

Runs 1 and 2 20

Table 6-2 Summary of Target Compound Test Data and Test Results Division Stack ndash MM18

Runs 1 2 and 3 22

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 1

1 INTRODUCTION

11 FACILITY AND BACKGROUND INFORMATION

The Chemours Fayetteville Works (Chemours) is located in Bladen County North Carolina

approximately 10 miles south of the city of Fayetteville Chemours operating areas on the site

include the Fluoromonomers IXM and Polymers Processing Aid (PPA) manufacturing areas

Wastewater Treatment and Powerhouse

Chemours contracted Weston Solutions Inc (Weston) to perform HFPO Dimer Acid Fluoride

captured as HFPO Dimer Acid and other target compound emission testing on the Division

stack at the facility Testing was performed on 22 November and 4 December 2019 and generally

followed the ldquoEmission Test Protocolrdquo reviewed and approved by the North Carolina

Department of Environmental Quality (NCDEQ) This report provides the results from the

emission test program

12 TEST OBJECTIVES

The specific objectives for this test program were as follows

Measure the emissions concentrations and mass emissions rates of HFPO Dimer Acid Fluoride and other target compounds from the Division stack which is located in the Fluoromonomers process area

Monitor and record process and emissions control data in conjunction with the test program

Provide representative emissions data

13 TEST PROGRAM OVERVIEW

During the emissions test program the concentrations and mass emissions rates of HFPO Dimer

Acid and other target compounds were measured at the Division stack

Table 1-1 provides a summary of the test location and the parameters that were measured along

with the samplinganalytical procedures that were followed

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 2

Section 2 provides a summary of test results A description of the processes is provided in

Section 3 Section 4 provides a description of the test locations The sampling and analytical

procedures are provided in Section 5 Detailed test results and discussion are provided in

Section 6

Appendix C includes the summary reports for the laboratory analytical results The full

laboratory data packages are provided in electronic format

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 4

2 SUMMARY OF TEST RESULTS

A total of three MM18 and two M0010 test runs were performed on the Division stack Table 2-1

provides a summary of the HFPO Dimer Acid emissions test results associated with M0010

Table 2-2 provides a summary of the target compound emissions test results associated with

MM18 Detailed test results summaries are provided in Section 6

It is important to note that emphasis is being placed on the characterization of the emissions

based on the M0010 stack test results Research conducted in developing the protocol for stack

testing HFPO Dimer Acid Fluoride HFPO Dimer Acid Ammonium Salt and HFPO Dimer Acid

realized that the resulting testing including collection of the air samples and extraction of the

various fraction of the sampling train would result in all three compounds being expressed as

simply the HFPO Dimer Acid However it should be understood that the total M0010 HFPO

Dimer Acid results provided in Table 2-1 and in this report include a percentage of each of the

three compounds

Table 2-1 Summary of M0010 HFPO Dimer Acid Division Stack Test Results

Division Stack ndash M0010 gsec lbhr

R1 194E-04 154E-03 R2 339E-04 269E-03 Average 266E-04 212E-03

Samples taken using MM18 were analyzed for the following volatile organic compounds (ldquotarget

compoundsrdquo) HFPO Dimer Methyl Ester as HFPO (HFPO Dimer Methyl Ester) 2-MTP as

HFPO (HFPO Monomer) Heptafluoropropyl 1222-tetrafluoroethyl ether (Fluoroether E-1)

Carbonyl Difluoride Total Fluorine and Hydrogen Fluoride Results of MM18 target compound

analysis are provided in Table 2-2

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 5

Table 2-2 Summary of MM18 Target Compound Division Stack Test Results

Target Compound

Division Stack MM18 Run 1

Division Stack MM18 Run 2

Division Stack MM18 Run 3

gsec lbhr gsec lbhr gsec lbhr HFPO Dimer Methyl Ester

lt438E-03 lt348E-02 lt260E-03 lt207E-02 lt263E-03 lt209E-02

HFPO Monomer

374E-01 297E+00 315E-01 250E+00 192E+00 153E+01

Fluoroether E-1

291E-02 231E-01 667E-02 530E-01 241E-02 192E-01

Carbonyl Difluoride

lt134E-02 lt106E-01 lt796E-03 lt633E-02 lt803E-03 lt638E-02

Total Fluorine

727E+00 578E+01 594E+00 472E+01 140E+01 111E+02

Hydrogen Fluoride

lt182E-01 lt145E+00 lt109-01 lt863E-01 lt110E-01 lt870E-01

Note All lt values were below the laboratory analysis detection limits Emission rates were calculated using the method detection limit (MDL) for the first analytical fraction of the target compound

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 6

3 PROCESS DESCRIPTIONS

The Fluoromonomers area is included in the scope of this test program

31 FLUOROMONOMERS

These facilities produce a family of fluorocarbon compounds used to produce Chemours

products such as Nafionreg Krytoxreg and Vitonreg as well as sales to outside customers

At the time of testing process emissions were vented to the Division waste gas scrubber system

(which included the secondary scrubber) and vented to the Carbon Bed and then into the

Division stack The VE North building air systems were vented to the Carbon Bed and then into

the Division stack

32 PROCESS OPERATIONS AND PARAMETERS

The following table is a summary of the operation and products from the specific areas tested

Source OperationProduct Batch or Continuous VE North

PPVE Condensation is continuous Agitated Bed Reactor and Refining are batch

During the test program the following parameters were monitored by Chemours and are

included in Appendix A

Fluoromonomers Process o VEN Precurser Rate o VEN Condensation Rate o VEN ABR Rate

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 7

4 DESCRIPTION OF TEST LOCATIONS

41 DIVISION STACK

Two 6-inch ID test ports were installed on the 36-inch ID fiberglass stack as shown below The

four vents that enter the top of the stack and the one vent ~11 feet below are catch pots which

under normal process operations do not discharge to the stack They are used to vent process gas

to the stack in the event of a process upset and are not considered a flow contributor or a

disturbance

Per EPA Method 1 a total of 12 traverse points (six per axis) were used for M-0010 isokinetic

sampling Figure 4-1 provides a schematic of the test ports and traverse point locations

Location Distance from Flow Disturbance Downstream (B) Upstream (A)

Division Stack 30 feet gt 10 duct diameters

9 feet gt 3 diameters

The EPA Method 18 sample was collected at a constant rate at a single point at the approximate

center of the stack

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 9

5 SAMPLING AND ANALYTICAL METHODS

51 STACK GAS SAMPLING PROCEDURES

The purpose of this section is to describe the stack gas emissions sampling trains and to provide

details of the stack sampling and analytical procedures utilized during the emissions test

program

511 Pre-Test Determinations

Preliminary test data were obtained at the test location Stack geometry measurements were

measured and recorded and traverse point distances verified A preliminary velocity traverse

was performed utilizing a calibrated S-type pitot tube and an inclined manometer to determine

velocity profiles Flue gas temperatures were observed with a calibrated direct readout panel

meter equipped with a chromel-alumel thermocouple Preliminary water vapor content was

estimated by wet bulbdry bulb temperature measurements

A check for the presence or absence of cyclonic flow was previously conducted at the test

location The cyclonic flow check was negative (lt 20deg) verifying that the test location was

acceptable for testing

Preliminary test data was used for nozzle sizing and sampling rate determinations for isokinetic

sampling procedures

Calibration of probe nozzles pitot tubes metering systems and temperature measurement

devices was performed as specified in Section 5 of EPA Method 5 test procedures

52 STACK PARAMETERS

521 EPA Method 0010

The sampling train utilized to perform the HFPO Dimer Acid sampling at the location was an

EPA Method 0010 train (see Figure 5-1) The Method 0010 consisted of a borosilicate nozzle

that attached directly to a heated borosilicate probe In order to minimize possible thermal

degradation of the HFPO Dimer Acid the probe and particulate filter were heated above stack

temperature to minimize water vapor condensation before the filter The probe was connected

directly to a heated borosilicate filter holder containing a solvent extracted glass fiber filter

18

10

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 11

A section of borosilicate glass or flexible polyethylene tubing connected the filter holder exit to a

Grahm (spiral) type ice water-cooled condenser an ice water-jacketed sorbent module containing

approximately 40 grams of XAD-2 resin The XAD-2 resin tube was equipped with an inlet

temperature sensor The XAD-2 resin trap was followed by a condensate knockout impinger and

a series of two impingers that contained 100 mL of high-purity distilled water The train also

included a second XAD-2 resin trap behind the impinger section to evaluate possible sampling

train breakthrough Each XAD-2 resin trap was connected to a 1-liter condensate knockout trap

The final impinger contained 300 grams of dry pre-weighed silica gel All impingers and the

condensate traps were maintained in an ice bath Ice water was continuously circulated in the

condenser and the XAD-2 module to maintain method-required temperature A control console

with a leakless vacuum pump a calibrated orifice and dual inclined manometers was connected

to the final impinger via an umbilical cord to complete the sample train

HFPO Dimer Acid Fluoride (CAS No 2062-98-8) that is present in the stack gas is expected to

be captured in the sampling train along with HFPO Dimer Acid (CAS No 13252-13-6) HFPO

Dimer Acid Fluoride underwent hydrolysis instantaneously in water in the sampling train and

during the sample recovery step and was converted to HFPO Dimer Acid such that the amount

of HFPO Dimer Acid emissions represented a combination of both HFPO Dimer Acid Fluoride

and HFPO Dimer Acid

During sampling gas stream velocities were measured by attaching a calibrated S-type pitot tube

into the gas stream adjacent to the sampling nozzle The velocity pressure differential was

observed immediately after positioning the nozzle at each traverse point and the sampling rate

adjusted to maintain isokineticity at 100 plusmn 10 Flue gas temperature was monitored at each

point with a calibrated panel meter and thermocouple Isokinetic test data was recorded at each

traverse point during all test periods as appropriate Leak checks were performed on the

sampling apparatus according to reference method instructions prior to and following each run

component change (if required) or during midpoint port changes

522 EPA Method 0010 Sample Recovery

At the conclusion of each test the sampling train was dismantled the openings sealed and the

components transported to the field laboratory trailer for recovery

A consistent procedure was employed for sample recovery

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 12

1 The two XAD-2 covered (to minimize light degradation) sorbent modules (1 and 2) weresealed and labeled

2 The glass fiber filter(s) were removed from the holder with tweezers and placed in apolyethylene container along with any loose particulate and filter fragments

3 The particulate adhering to the internal surfaces of the nozzle probe and front half of thefilter holder were rinsed with a solution of methanol and ammonium hydroxide into apolyethylene container while brushing a minimum of three times until no visibleparticulate remained Particulate adhering to the brush was rinsed with methanolammonium hydroxide into the same container The container was sealed

4 The volume of liquid collected in the first condensate trap was measured the valuerecorded and the contents poured into a polyethylene container

5 All train components between the filter exit and the first condensate trap were rinsed withmethanolammonium hydroxide The solvent rinse was placed in a separate polyethylenecontainer and sealed

6 The volume of liquid in impingers one and two and the second condensate trap weremeasured the values recorded and the sample was placed in the same container as Step 4above then sealed

7 The two impingers condensate trap and connectors were rinsed with methanolammonium hydroxide The solvent sample was placed in a separate polyethylenecontainer and sealed

8 The silica gel in the final impinger was weighed and the weight gain value recorded

9 Site (reagent) blank samples of the methanolammonium hydroxide XAD resin filterand distilled water were retained for analysis

Each container was labeled to clearly identify its contents All samples were maintained cool

Following sample recovery all samples were transported to Eurofins TestAmerica

(TestAmerica) for sample extraction and analysis

See Figure 5-2 for a schematic of the Method 0010 sample recovery process

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 13

523 EPA Method 0010 Sample Analysis

Method 0010 sampling trains resulted in four separate analytical fractions for HFPO Dimer Acid

analysis according to SW-846 Method 3542

Front-half Compositemdashcomprised of the particulate filter and the probe nozzle and

front-half of the filter holder solvent rinses

Back-half Compositemdashcomprised of the first XAD-2 resin material and the back-half of

the filter holder with connecting glassware solvent rinses

Condensate Compositemdashcomprised of the aqueous condensates and the contents of

impingers one and two with solvent rinses

Breakthrough XAD-2 Resin Tubemdashcomprised of the resin tube behind the series of

impingers

The second XAD-2 resin material was analyzed separately to evaluate any possible sampling

train HFPO-DA breakthrough

The front-half and back-half composites and the second XAD-2 resin material were placed in

polypropylene wide-mouth bottles and tumbled with methanol containing 5 NH4OH for 18

hours Portions of the extracts were processed analytically for the HFPO dimer acid by liquid

chromatography and duel mass spectroscopy (HPLCMSMS) The condensate composite was

concentrated onto a solid phase extraction (SPE) cartridge followed by desorption from the

cartridge using methanol Portions of those extracts were also processed analytically by

HPLCMSMS

18

3

14

VACUUM LINEMAINVALVE

TEMPERATURESENSORS

BY-PASS VALVE

DRY GASMETER

CUBIC LITERS

ORIFICE

VACUUMGAUGE

AIR-TIGHT

PUMP

DRY ICE AND METHANOL

BATH

METHANOL IN EACH IMPINGER

FIGURE 5-3MODIFIED EPA METHOD 18 SAMPLING TRAIN FOR PFAS COMPOUNDS

GLASS IMPINGERS

STACK WALL

PLASTIC OR GLASS PROBE

PRESSUREDIFFERENTIAL

GAUGE

8 3 18

16

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 17

54 GAS COMPOSITION

The Weston mobile laboratory equipped with instrumental analyzers was used to measure carbon

dioxide (CO2) and oxygen (O2) concentrations A diagram of the Weston sampling system is

presented in Figure 5-4

For the Division stack test campaign the sample was collected at the exhaust of the Method

0010 sampling system At the end of the line a tee permitted the introduction of calibration gas

The sample was drawn through a heated Teflonreg sample line to the sample conditioner The

output from the sampling system was recorded electronically and one minute averages were

recorded and displayed on a data logger

Each analyzer was set up and calibrated internally by introduction of calibration gas standards

directly to the analyzer from a calibration manifold The calibration manifold is designed with an

atmospheric vent to release excess calibration gas and maintained the calibration at ambient

pressure The direct calibration sequence consisted of alternate injections of zero and mid-range

gases with appropriate adjustments until the desired responses were obtained The high-range

standards were then introduced in sequence without further adjustment

The sample line integrity was verified by performing a bias test before and after each test period

The sampling system bias test consisted of introducing the zero gas and one up-range calibration

standard in excess to the valve at the probe end when the system was sampling normally The

excess calibration gas flowed out through the probe to maintain ambient sampling system

pressure Calibration gas supply was regulated to maintain constant sampling rate and pressure

Instrument bias check response was compared to internal calibration responses to insure sample

line integrity and to calculate a bias correction factor after each run using the ratio of the

measured concentration of the bias gas certified by the calibration gas supplier

The oxygen and carbon dioxide content of each stack gas was measured according to EPA

Method 3A procedures which incorporate the latest updates of EPA Method 7E A Servomex

Model 4900 analyzer (or equivalent) was used to measure oxygen content A Servomex Model

4900 analyzer (or equivalent) was used to measure carbon dioxide content of the stack gas Both

analyzers were calibrated with EPA Protocol gases prior to the start of the test program and

performance was verified by sample bias checks before and after each test run

I

4

184

18

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 19

6 DETAILED TEST RESULTS AND DISCUSSION

M0010 test run number two was stopped prior to the full run time due to a process upset in the

area The run was considered complete and the sample was recovered and submitted for analysis

A total of two M0010 test runs were performed at the location A total of three MM18 test runs

were performed at the location

Table 6-1 provides detailed M0010 test data and test results for Division stack Table 6-2

provides detailed MM18 test data and test results for the Division stack

The Method 3A sampling indicated that the O2 and CO2 concentrations were at ambient air

levels (209 O2 0 CO2) therefore 209 O2 and 0 CO2 values were used in all

calculations

It should be noted that methylene chloride was identified in the MM18 analytical results This

detection was due to a special procedure done in the process area in which methylene chloride

was used to unplug equipment that experienced plugging during testing Methylene chloride

would not typically be detected in this process area

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

APPENDIX A PROCESS OPERATIONS DATA

24

Division

Date 11222019TimeStack TestingHFPOVEN ProductVEN PrecursorVEN Condensation (HFPO)VEN ABRVEN RefiningStripper Column VentDivision WGS Recirculation FlowDivision WGS Inlet Flow

Date 1242019TimeStack TestingHFPOVEN ProductVEN PrecursorVEN Condensation (HFPO)VEN ABRVEN RefiningStripper Column VentDivision WGS Recirculation FlowDivision WGS Inlet Flow

800 900 1000 1100 1300 1400 1500 1600RUN 1 0826-1022 RUN 2 - 1139-1320

1200

PPVE

Burnout

15000 kgh142 kgh 145 kgh 148 kgh 150 kgh 135 kgh 128 kgh 74 kgh103 kgh

RUN 3 0955-1125

PPVE

800 900 1000 1100

15000 kgh65 kgh 73 kgh 110 kgh

25

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

APPENDIX B RAW AND REDUCED TEST DATA

26

Sample and Velocity Traverse Point Data Sheet - Method 1

Client CJtl 11 eAAI Operator Loact1onPlant Vltf t fcu I le v Date 2J- l

Source ( v ) _5 -rj(L W O Number JT(t O

Duct Type Circular D Rectangular Duct Indicate eppropMate type

Traverse Type II( Particulate Traverse D Velocity Traverse D CEM Traverse

Distance from far wall to outside of oort lln l = C ltdeglt ) Flow Disturbances -

Port Deoth (in) = D 121 ur Upstream - A (ft) (1 (t I

Deoth or Duct diameter (inI= C-D I (I Area of Duct (ff) -11 7 01 - - --

Total Traverse Points 1 I tJ fa

Total Traverse Points oer Port

Port Diameter flnl-Flanae-Threaded-Holel l I

Monorail Lenoth t) Rectangular Ducts Onty

Width of Duct rectanaular duct only (In I Total Ports (rectanoular duct only) Eauivalent Diameter= 12middotL Wl(L+W)

Traverse Point Locations

Distance from Traverse Inside Duct Distance1from Outside of

Point of Duct Wallinl Portin)

1 1 i I 1- I b2 jtmicro 1poundgt

2 ( gt-0 h A il1

l y gtf-uir 7 vr

3 21 I09S- timiddot 1T 1e 1 tJ lDI 1

Igt 4 7 V

5

6

7

8

10

11

12

1

2

3

9S i 31 9 l- t

Cf5lv 35)7 $ f

- L

4Mre (

CEM 3 Polnl(Long Measurmbullnt Unbull) StraUflcaton POnt Locations

0167

050

0833 Note If stack dla lt 12 inch use EPA Method 1A

(Sample port upstream of pilot port) Note stack dia gt24 then adjust traverse point to 1 inch from wall

If stack dia lt24 then adjust traverse point to 05 inch from wall

l 2 T I 146

r 2 854 ) L

4 bull 0

r C 5 bull a 6 o I 7

8 p 0 o n 9

I 10

n II 12

Traverso Point Location Ptrcant of Stack Circular

J 4

67

25

75

i

NwnberofT IPoints 5 6 8

44 32

146 tQ5

296 194

704 123

854 677

956 8D6

895

96B

9 10

26

82 146

226

)42

658

774

1154 918

974

ll

tfltr

middotltt

12

21

67 118 111

25

l56

644

15

823

w 9)3

979

Downstream - B (ft) -

91 Qt

Upstream - A (duct diameters t

Downstream - B duct diameters) 61Diagram of Stack

11 _ ---

ltl Igt-

ry middoti 5D -

j

--

Duct 0middot1ameters Upstream from Flow Disturbance (Distance A

05 1 0 1 5 20 25 50

I I I I I I I

Stack Diametergt 24 Inches deg t

40 - A

plusmn --- -middot

Minimum Number cf bull

l

JO -Particulate Traverse Points

l _

24 (chular) 25 (mctangulw dlJdltl)

20 -

Traverse Polllls for Velocity 16

12

I 10 _ Disturbance =Band Expansion Contraction etc

B(tmJiir)lilj

S1adDlaarDti1224Rnefl

4

Duct Dlemehn Downstraam from Acv Dl1furbance (Olslenca B)

Travers Point Location Panent of Stack ootanaular

NIJlber ofTnrne Polnls I 2 l 4 5 6 7 8 9 10 II ll

T I 250 167 125 100 8J 71 6J 56 50 45 41

2 7SO 51l0 31J 300 25J ZIA 18J 167 ISII llli 11l J 8) 3 625 500 417 )57 JU 278 250 227 208 l

4 75 70I ID 5110 431 IU 310 318 29Z o 5 900 750 60 563 500 4SO 409 Jll a 6 911 JU 611 U ru tea 458 I 7 C29 813 722 650 91 l4l

i tu w 750 42 ill p 0

o n i 944 850 m 708 I 10 i5JI 1164 191

II 955 875 12 JJI

27

CHEMOURS - FAYETTEVILLE NCINPUTS FOR HFPO DIMER ACID CALCULATIONS

DIVISION STACK

Test DataRun number 1 2Location Divison Stack Divison StackDate 112219 112219Time period 0826-1022 1139-1324Operator BB BB

Inputs For CalcsSq rt delta P 145039 122804Delta H 14025 10010Stack temp (degF) 716 794Meter temp (degF) 570 652Sample volume (act) 63136 47088Barometric press (inHg) 3002 3002Volume H2O imp (ml) 100 70Weight change sil gel (g) 244 145 CO2 00 00 O2 209 209 N2 791 791Area of stack (sqft) 7070 7070Sample time (min) 960 840Static pressure (inH2O) -035 -035Nozzle dia (in) 0160 0160Meter box cal 09972 09972Cp of pitot tube 084 084Traverse points 12 12

122020 1102 AM 112219 Div Stack M001028

ISOKINETIC FIELD DATA SHEET EPA Method 0010 - HFPO Dimer Acid Page J~ orb client chemours Stack Conditions Meter Box ID K Factor Q wo 15418002018 Assumed Actual MeterBox Y rjq7 a Project ID Chemours Moisture ^~ 3 Meter Box Del H ~ $j ~~ Illltlal Mid-Point Final ModeSource ID Division Impinger Vol (ml) Probe ID Length L~~ ~ Sample Train (ft3) o o D 5 GAO U (~(~ Samp Loc ID STK Silica gel (g) Probe Material ~Boro Leak Check (in Hg) `~ ~ S ~~ ~

Run NoID 1 CO2 deg by Vol Q Pitot Thermocouple ID Pitot leak check good yes no no no Test Method ID M0010 02 by Vol ~ ~ Pitot Coe~cient 84~r Pitot Inspection good no ye no no Date ID NOV2019 Temperature (degF) ~ Noale ID ~~ Method 3 System good yes no yes no yes no SourceLocation Div(sion Stack Meter Temp (F) l~ Noale Measurements ~ 6 p ~ LO Temp Check re-Test Set POSt-Test Set Sample Date ~ Static Press (in H2O) mdash ~ 3 ~j ~J Avg Noale Dia (in) ~ ~ 6 bull ~ Meter Box Temp

Baro Press (in Hg) Area of Stack (ftz) Q~ Reference Temp Operator Ambient Temp (degF) ~ ~ Sample Time `~ (~ PasslFail (+- 2deg~ Pass Fail Pass Fail

Total Traverse Pts ~ a Temp Change Response ~ yes no yes no

~~r~~~-

~~mdash~~ ~ ~ ~ ~ ~ i ~~~~mdash

~~-~~~Itibull1~~~ bull ~~~~~~~_~~

~~-~ I ~~~~~~~~~- ~~~

avg uena r ( vvg uerca ry

a ~ ~Ib J Ava Sart Delta P Avo Sart Dei t

i oral vowme~ ( b vvg i s

~~~ nments

J ~lr ~ ~~~~13~

J

vvg i m J rvun~nnax rvunlnnax nnax rwax vac nnin~rv~ax

~~ d ltltu~~~~ te6~~~~( sq g H~ly~ EPA Method 0010 from EPA SW- 46

(~ Q~ ~~~ 29

ISOHINETIC FIELD DATA SHEET EPA Method 0010 - HFPO Dimer Acid Page ~ or 1 Client Chemours Stack Conditions Meter Box ID qq~ ~ K Factor ~ 6 WO 15418002018 Assumed Actual Meter Box Y Project ID Chemours Moisture ~ Meter Box Del H ( gj ~ Init181 Mid-Point FIn81 ModeSource ID Division Impinger Vol (ml) Probe ID Length H q 4 ~ 6~ Sample Train (ft3) ~ Oo ~ jj ~ Samp Loc ID STK Silica gel (g)

mdash~ Probe Material Boro Leak Check (in Hg) ~

Run NoID 2 CO2 by Vol Pitot Thermocouple ID Pitot leak check good ~ no e no yes np Test Method ID M0010 02 deg by Vol ~ q Pitot Coefficient 084 Pitot Inspection good no e no yes no Date ID S L

NOV2019 Temperature (degF) MeterT m F

~~ Noale ID Method 3 S stem ood Y 9 Yes no yes no yes no ource ovation Diviswn Stack e P ( ) Noale Measurements I b~ ~ 60 ~ (~ Temp Check Pre-Test et Post-Test Set

Sample Date ~ ~ a mdash ( Static Press (in Hz0) mdash~ 3 Avg Noale Dia (in) ( ~ Meter Box Temp Baro Press (in Hg) Q Area of Stack (ft2) Reference Temp Operator Ambient Temp (degF) SQ Sample Time _q~-- `~j PassFail (+- 2deg) Pass Fail Pass Fail

Total Traverse Pts ~ ~ Temp Change Response yes no ves no

bull

mdash~~~~ ~ bull

~~~~--- ~~~

~~mdash~~ ~ r ~ ~~~~~-

1~__2~ 000~5~

Avg Sgrt Delta P Avg Sgrt Del

t-~`~~5 ~~~~~~~

bully bull~ r ~~~~~~~~a~ miuimnn man max vac mnuPnax

~~ flg~ ~1q~1 lo ~-- QOIl2(o g3(tl5 (a~ (v ~I`b~(o0 Comments EPA Method 0010 from EPA SW-846

_ t~~ ~~_~- 30

12120201028 AM 112219 Div Stack MM18

TEST DATA Test run number 1 2 3 Location Division Stack Division Stack Division Stack Test date 112219 112219 12419 Test time period 0826-1022 1139-1318 0955-1125Operator WF WF KS

SAMPLING DATA Duration minutes 84 78 90 Average dry gas meter press in H2O 341 356 500 Average dry gas meter temp deg F 549 6600 5450 Average absolute meter temp deg R 5149 5260 5145 Sample vol at meter cond dcl 143580 147394 159313 Meter box calibration Y 09996 09996 10140 Barometric pressure in Hg 3002 3002 3012 Sample volume dscl (1) 148843 149624 168860 Sample volume dscf (1) 5256 5283 5963

VOLUMETRIC FLOW RATE Avg gas stream volumetric flow dscfmin 33787 28485 31136

(1) Standard conditions = 68 deg F (20 deg C) and 2992 inches Hg (760mm Hg)

CHEMOURS-FAYETTEVILLE NCINPUTS FOR EPA MM18 TARGET COMPOUND CALCULATIONS

DIVISION STACK

32

FIELD DATA SHEET Client Chemours Run No

WO 15418002018 Test Method

Project ID CHEM-F Date

ModeSource ID Division Baro Press (in Hg)

Samp Loc Stack Ambient Temp (degF)

Source Division Stk Operator

Sample Time Comments Initial Probe Leak check

Final Probe Leak check

MM 1 S - HFPO Diener Acid Page ~ of ~ 1 Meter Box ID

Modified M18 Meter Box Y Q G

Nov 2019 Probe IDLength Leak Check (in Hg) (~~~ ~bdquo~~~ I I (~Q (1~~ ~

3Q (~Z Probe Material Pitot leak check good yecLpry yes no y~uc_Law

bull ~

~~- ~~ ~~

~ ~~ ~ --~

------ --

Avg Delta H Total Volume Avg Tm Max Temp Max Vac Max Temp

33

FIELD DATA SHEET Client

W O

Project ID

ModeSource ID

Samp Loc

Source

Comments

Chemours Run No

15418002018 Test Method

CHEM-F Date

Division Baro Press (in Hg)

Stack Ambient Temp (degF)

Division Stk Operator

Sample Time

Initial Probe Leak check Final Probe Leak check

MM 18 - HFPO Dimer Acid 2 Meter Box ID ~0

Modified M18 Meter Box Y G~ ~+ Nov 2019 Probe IDLength Leak Check (in Hg)

~(~ p ~ Probe Material Pitot Teak check good

da W

~~ ~laquo

Page ~ of

pJCH ~~~

yes no yes no

~~~~ r ~~~rl~~~f~r~~~~ ~ ~ ~m~ - ~c~1 ~~~P~~~~i~ ~ ~m~ ~~~c~~~~~l~~~~ ~

m ~ ~_-1

~~bulls~s7xix~~rax a

Hvg ueita n ~ i otai volume

35~ ~ I~1~~ Hvg i m Hoax I emp Max Vac Max Temp

l~ ~

34

~~v S~~-~Ll~

SAMPLE RECOVERY FIELD DATA

Client r~i4 ~`~ WO LocationPlant ~ ~~ bdquomdash r Source ampLocation J I~

Run No Sample Date ~~~~ ~ Recovery Date gt ~

Sample ID ~ ~~(~ Analyst ~ ~ Filter Number

Im in er 1 2 3 4 5 6 7 Im Total 8 Total

Contents Silica Gel

Final ~~ ~~j~zj ~ ~~7i ~ ~

~ `~ 1

Initial ~ G~ ~~ ~ ~ ~~ ~ ~ ~ utJ~ ~d

ca~~ I3 ~- -_~ i ImpingerColor ~A~ j~=~~ Labeled

mdash~ Silica Gel Condition Sealed

Run No ~ Sample Date ~ ~~ Recovery Date ~~~

Sample ID Analyst Filter Number ~~

Im in er 1 2 3 4 5 6 7 ImpTotai 8 Total

Contents Silica Gel

Final ~~r ~ 1o~i(~ ~0~ ~ ~Os

Initial ~ rs b~~~~ ~~~ ~~ Q ~~ f

Gain ~s d d

Impinger Color ~j ( ~ Labeled

Silica Gel Condition Sealed

Run No lf~ Sample Dated ~ ~ Recovery Date ~~ tmdash

Sample ID ~ Analyst Filter Number

Im in er 1 2 3 4 5 6 7 ImpTotal 8 Total

Contents Silica Gel

Final ~ t ~~r ~ b s ~ ~ 0 ~1 ~~~ b~

initial ~ ~ = ~ v b ~~gt ~ ~ ~~ - ~j

Gain ~ 4 ~G(~j~ ~ Impinger Color -~ ~ La~ed

Silica Gel Condition Sealed

Check COC for Sample IDs of Media Blanks ~ ~~

~

~~

35

FIELD DATA SHEET MM 18 Client Chemours Run No 1 Meter Box ID

WO 15418002018 Test Method Modified M18 Meter Box Y D I~

Project ID CHEM-F Date ~I Dec 2019 Probe IDLength Leak Check (in Hg)

ModeSource ID VE NoRh Baro Press (in Hg) 3~~ Probe Mate~ai Pitot leak check good Samp Loc Stack Ambient Temp (degF) O

Source Division Operator f

Sample Time ~~ M~

Comments Initial Probe Leak check ~~ a ~~pi~

Final Probe Leak check ~~i y ~r~~~p

Page ~ of

yes no yes no yes no

a~ ~a~~~ o~r~~~~

~~~ ~~~~a~ ~~~ ~

~~~~ I ~~ ~~ ~ ~ ~~~~~~~~~ ~~~~em~~

--- -- ~~-

--~ -- ~~-~ Avg Delta HJ Total Volume Avg Tm MaxTemp Max Vac Max Temp

36

SAMPLE RECOVERY FIELD DATA

Client ~ ~ lam C~1` s WO l~ 4 l~ gt~ti~- =~~ ~vi LocatioNPlant r-c~ t~ Source ampLocation ~ C JV~3c- mdash ~ y~~ ~~ 5

Run No 3 Sample Date Iz-~ ~-1 mdash j ~ Recovery Date ~~9

Sample ID Analyst Filter Number i l~ Im in er

1 2 3 4 5 6 7 Im Total 8 Total Contents Silica Gel

Final 4 ~ ~ G~ U ~O ~ ~ C1 ~~ 3 ~ _

Initial ~ ~ ~ C1~ bull ~- L ~c3~-~j ~ 13~

Gain C~ ~ d + t ~ ~ ~L O ~ ~ ~ v r C7 r

Impinger Color ______~~ Labeled r

Silica Gel Condition +~U Sealed

Run No Sample Date Recovery Date

Sample ID Analyst Filter Number

Im in er 1 2 3 4 5 6 7 ImpTotal 8 Total

Contents ~ Silica Gel

Final

Initial ~~~ ~~0 607` ~C~ ~~ ~~ ~ f3 ~3

Gain

Impinger Color Labeled

Silica Gel Condition Sealed

Run No Sample Date Recovery Date

Sample ID Analyst Filter Number

Im in er 1 2 3 4 5 6 7 ImpTotal 8 Total

Contents Silica Gel

Final

Initial

Gain

Impinger Color Labeled

Silica Gel Condition Sealed

Check COC for Sample IDs of Media Blanks ~`

k3aT~AF c

37

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

APPENDIX C LABORATORY ANALYTICAL REPORT

38

ANALYTICAL REPORTJob Number 140-17458-1

Job Description VEN Stack - M0010

Contract Number LBIO-67048

ForChemours Company FC LLC The

co AECOMSabre Building Suite 300

4051 Ogletown RoadNewark DE 19713

Attention Michael Aucoin

_____________________________________________

Approved for releaseCourtney M AdkinsProject Manager II12102019 307 PM

Courtney M Adkins Project Manager II5815 Middlebrook Pike Knoxville TN 37921

(865)291-3000courtneyadkinstestamericainccom

12102019

This report may not be reproduced except in full and with written approval from the laboratory For questions please contact the Project Manager atthe e-mail address or telephone number listed on this page

The test results in this report relate only to the samples as received by the laboratory and will meet all requirements of the methodology with anyexceptions noted This report shall not be reproduced except in full without the express written approval of the laboratory All questions should bedirected to the Eurofins TestAmerica Project Manager

This report has been electronically signed and authorized by the signatory Electronic signature is intended to be the legally binding equivalent of atraditionally handwritten signature

Eurofins TestAmerica Knoxville

5815 Middlebrook Pike Knoxville TN 37921

Tel (865) 291-3000 Fax (865) 584-4315 wwwtestamericainccom

12102019Page 1 of 21339

Table of ContentsCover Title Page 1

Data Summaries 4

Definitions 4

Method Summary 5

Sample Summary 6

Case Narrative 7

QC Association 9

Client Sample Results 11

Default Detection Limits 13

Surrogate Summary 14

QC Sample Results 15

Chronicle 18

Certification Summary 22

Manual Integration Summary 24

Organic Sample Data 25

LCMS 25

8321A_HFPO_Du 258321A_HFPO_Du QC Summary 268321A_HFPO_Du Sample Data 32Standards Data 40

8321A_HFPO_Du ICAL Data 408321A_HFPO_Du CCAL Data 63

Raw QC Data 758321A_HFPO_Du Tune Data 758321A_HFPO_Du Blank Data 808321A_HFPO_Du LCSLCSD Data 92

12102019Page 2 of 21340

Table of Contents8321A_HFPO_Du Run Logs 1058321A_HFPO_Du Prep Data 107

Method DV-LC-0012 114Method DV-LC-0012 QC Summary 115Method DV-LC-0012 Sample Data 123Standards Data 147

Method DV-LC-0012 CCAL Data 147Raw QC Data 165

Method DV-LC-0012 Tune Data 165Method DV-LC-0012 Blank Data 170Method DV-LC-0012 LCSLCSD Data 182

Method DV-LC-0012 Run Logs 198Method DV-LC-0012 Prep Data 200

Shipping and Receiving Documents 206

Client Chain of Custody 207

12102019Page 3 of 21341

DefinitionsGlossaryJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

Qualifiers

LCMSQualifier Description

LCS or LCSD is outside acceptance limits

Qualifier

B Compound was found in the blank and sample

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

GlossaryThese commonly used abbreviations may or may not be present in this report

curren Listed under the D column to designate that the result is reported on a dry weight basis

Abbreviation

R Percent Recovery

CFL Contains Free Liquid

CNF Contains No Free Liquid

DER Duplicate Error Ratio (normalized absolute difference)

Dil Fac Dilution Factor

DL Detection Limit (DoDDOE)

DL RA RE IN Indicates a Dilution Re-analysis Re-extraction or additional Initial metalsanion analysis of the sample

DLC Decision Level Concentration (Radiochemistry)

EDL Estimated Detection Limit (Dioxin)

LOD Limit of Detection (DoDDOE)

LOQ Limit of Quantitation (DoDDOE)

MDA Minimum Detectable Activity (Radiochemistry)

MDC Minimum Detectable Concentration (Radiochemistry)

MDL Method Detection Limit

ML Minimum Level (Dioxin)

NC Not Calculated

ND Not Detected at the reporting limit (or MDL or EDL if shown)

PQL Practical Quantitation Limit

QC Quality Control

RER Relative Error Ratio (Radiochemistry)

RL Reporting Limit or Requested Limit (Radiochemistry)

RPD Relative Percent Difference a measure of the relative difference between two points

TEF Toxicity Equivalent Factor (Dioxin)

TEQ Toxicity Equivalent Quotient (Dioxin)

Eurofins TestAmerica Knoxville

12102019Page 4 of 21342

Method SummaryJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

Method Method Description LaboratoryProtocol

SW8468321A HFPO-DA TAL DEN

SW8468321A PFOA and PFOS TAL DEN

TAL SOPNone Leaching Procedure TAL DEN

TAL SOPNone Leaching Procedure for Condensate TAL DEN

TAL SOPNone Leaching Procedure for XAD TAL DEN

Protocol References

SW846 = Test Methods For Evaluating Solid Waste PhysicalChemical Methods Third Edition November 1986 And Its Updates

TAL SOP = TestAmerica Laboratories Standard Operating Procedure

Laboratory References

TAL DEN = Eurofins TestAmerica Denver 4955 Yarrow Street Arvada CO 80002 TEL (303)736-0100

Eurofins TestAmerica Knoxville

12102019Page 5 of 21343

Sample SummaryJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

Lab Sample ID Client Sample ID ReceivedCollectedMatrix Asset ID

140-17458-1 G-25772578 DIV VEN STACK R1 M0010 FH Air 112219 0000 112519 0800

140-17458-2 G-257925802582 DIV VEN STACK R1 M0010

BH

Air 112219 0000 112519 0800

140-17458-3 G-2581 DIV VEN STACK R1 M0010 IMPINGERS

12amp3 COND

Air 112219 0000 112519 0800

140-17458-4 G-2583 DIV VEN STACK R1 M0010

BREAKTHROUGH XAD-2 RESIN TUBE

Air 112219 0000 112519 0800

140-17458-5 G-25842585 DIV VEN STACK R2 M0010 FH Air 112219 0000 112519 0800

140-17458-6 G-258625872589 DIV VEN STACK R2 M0010

BH

Air 112219 0000 112519 0800

140-17458-7 G-2588 DIV VEN STACK R2 M0010 IMPINGERS

12amp3 COND

Air 112219 0000 112519 0800

140-17458-8 G-2590 DIV VEN STACK R2 M0010

BREAKTHROUGH XAD-2 RESIN TUBE

Air 112219 0000 112519 0800

Eurofins TestAmerica Knoxville

12102019Page 6 of 21344

Job Narrative140-17458-1

Sample Receipt

The samples were received on November 25 2019 at 800 AM in good condition and properly preserved The temperature of the cooler at receipt was 16ordm C

Quality Control and Data Interpretation

Unless otherwise noted all holding times and QC criteria were met and the test results shown in this report meet all applicable NELAC requirements

Method 0010Method 3542 Sampling Train Preparation

Train fractions were extracted and prepared for analysis in TestAmericarsquos Knoxville laboratory Extracts and condensate samples were forwarded to the Denver laboratory for HFPO-DA analysis All results are reported in ldquoTotal ugrdquo per sample

LCMS

Method 8321A The following samples were inadvertently spiked with a native solution of HFPO-DA rather than the isotope dilution

internal standard prior to extraction in the Knoxville Laboratory

middot DIV VEN Stack R1 FHmiddot DIV VEN Stack R1 BHmiddot DIV VEN R1 Breakthrough middot DIV VEN Stack R2 FHmiddot DIV VEN Stack R2 BHmiddot DIV VEN R2 Breakthrough

As a result these samples received a relatively small fortification of the native HFPO-DA and no labeled IDA as typically applied Upon

discovery of the processing issue the IDAs were post spiked onto the extracted samples which were then re-analyzed to acquire the

Total HFPO-DA content in the samples The spiked amount of native HFPO-DA was subsequently subtracted from the Total HFPO-DA

and the corrected concentration is reported in with the data set below

Please note that under these conditions the affected samples are not corrected for extraction losses through isotope dilution internal

standard data reduction However the HFPO-DA concentrations are accurate and useful for their intended purpose

Method 8321A The laboratory control sample (LCS) and or laboratory control sample duplicate (LCSD) for preparation batch 280-478940 and analytical batch 280-479928 recovered outside control limits for the following analytes HFPO These analytes were biased high in the LCS and were not detected in the associated samples therefore the data have been reported

No additional analytical or quality issues were noted other than those described above or in the DefinitionsGlossary page

Organic Prep

No analytical or quality issues were noted other than those described in the DefinitionsGlossary page

12102019Page 7 of 21345

Chemours VES Carbon Bed Outlet Test Analytical Report TestAmerica Job No 140-17458-1

December 10 2019

OUsers FoldersAdkinsCProject DocumentsSpecial ReportingChemours Corrected ValuesFayettevilleChemours Corrected Results HFPO-DA_DIV VEN Stack_12102019docx Created on 01302018 Last edited on 12102019 302 PM

The following samples were inadvertently spiked with a native solution of HFPO-DA prior to extraction

in the Knoxville laboratory

DIV VEN Stack R1 FH

DIV VEN Stack R1 BH

DIV VEN R1 Breakthrough

DIV VEN Stack R2 FH

DIV VEN Stack R2 BH

DIV VEN R2 Breakthrough

The HFPO-DA results presented below have been corrected to remove the laboratory contribution from the final result

TALS ID Client ID HFPO-DA Result (ugsample)

HFPO-DA Added in the lab

(ugsample)

HFPO-DA Corrected Result

(ugsample)

140-17458-1 DIV VEN Stack R1 FH

986 2 786

140-17458-2 DIV VEN Stack R1 BH

213 7 143

140-17458-4 DIV VEN R1 Breakthrough

230 4 ND

140-17458-5 DIV VEN Stack R2 FH

658 25 408

140-17458-6 DIV VEN Stack R2 BH

363 65 298

140-17458-8 DIV VEN R2 Breakthrough

219 4 ND

12102019Page 8 of 21346

QC Association SummaryJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

LCMS

Analysis Batch 464589

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321ADLCK 280-46458913 Lab Control Sample TotalNA

Prep Batch 478940

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air None140-17458-1 G-25772578 DIV VEN STACK R1 M0010 FH TotalNA

Air None140-17458-5 G-25842585 DIV VEN STACK R2 M0010 FH TotalNA

Air NoneMB 280-47894014-A Method Blank TotalNA

Air NoneMB 280-4789401-A Method Blank TotalNA

Air NoneLCS 280-4789402-A Lab Control Sample TotalNA

Air NoneLCSD 280-4789403-A Lab Control Sample Dup TotalNA

Prep Batch 478993

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air None140-17458-3 G-2581 DIV VEN STACK R1 M0010 IMPINGERS 12amp3 CONDTotalNA

Air None140-17458-7 G-2588 DIV VEN STACK R2 M0010 IMPINGERS 12amp3 CONDTotalNA

Air NoneMB 280-47899314-A Method Blank TotalNA

Air NoneMB 280-4789931-A Method Blank TotalNA

Air NoneLCS 280-4789932-A Lab Control Sample TotalNA

Air NoneLCSD 280-4789933-A Lab Control Sample Dup TotalNA

Prep Batch 479245

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air None140-17458-2 G-257925802582 DIV VEN STACK R1 M0010 BHTotalNA

Air None140-17458-4 G-2583 DIV VEN STACK R1 M0010 BREAKTHROUGH XAD-2 RESIN TUBETotalNA

Air None140-17458-6 G-258625872589 DIV VEN STACK R2 M0010 BHTotalNA

Air None140-17458-8 G-2590 DIV VEN STACK R2 M0010 BREAKTHROUGH XAD-2 RESIN TUBETotalNA

Air NoneMB 280-4792451-A Method Blank TotalNA

Air NoneLCS 280-4792452-A Lab Control Sample TotalNA

Air NoneLCSD 280-4792453-A Lab Control Sample Dup TotalNA

Analysis Batch 479814

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321A 478993140-17458-3 G-2581 DIV VEN STACK R1 M0010 IMPINGERS 12amp3 CONDTotalNA

Air 8321A 478993140-17458-7 G-2588 DIV VEN STACK R2 M0010 IMPINGERS 12amp3 CONDTotalNA

Air 8321A 478993MB 280-47899314-A Method Blank TotalNA

Air 8321A 478993MB 280-4789931-A Method Blank TotalNA

Air 8321A 478993LCS 280-4789932-A Lab Control Sample TotalNA

Air 8321A 478993LCSD 280-4789933-A Lab Control Sample Dup TotalNA

Analysis Batch 479928

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321A 478940140-17458-1 G-25772578 DIV VEN STACK R1 M0010 FH TotalNA

Air 8321A 478940140-17458-5 G-25842585 DIV VEN STACK R2 M0010 FH TotalNA

Air 8321A 478940MB 280-47894014-A Method Blank TotalNA

Air 8321A 478940MB 280-4789401-A Method Blank TotalNA

Air 8321A 478940LCS 280-4789402-A Lab Control Sample TotalNA

Air 8321A 478940LCSD 280-4789403-A Lab Control Sample Dup TotalNA

Analysis Batch 479929

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321A 479245140-17458-2 G-257925802582 DIV VEN STACK R1 M0010 BHTotalNA

Eurofins TestAmerica Knoxville

12102019Page 9 of 21347

QC Association SummaryJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

LCMS (Continued)

Analysis Batch 479929 (Continued)

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321A 479245140-17458-4 G-2583 DIV VEN STACK R1 M0010 BREAKTHROUGH XAD-2 RESIN TUBETotalNA

Air 8321A 479245140-17458-6 G-258625872589 DIV VEN STACK R2 M0010 BHTotalNA

Air 8321A 479245140-17458-8 G-2590 DIV VEN STACK R2 M0010 BREAKTHROUGH XAD-2 RESIN TUBETotalNA

Air 8321A 479245MB 280-4792451-A Method Blank TotalNA

Air 8321A 479245LCS 280-4792452-A Lab Control Sample TotalNA

Air 8321A 479245LCSD 280-4792453-A Lab Control Sample Dup TotalNA

Eurofins TestAmerica Knoxville

12102019Page 10 of 21348

Client Sample ResultsJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

Lab Sample ID 140-17458-1Client Sample ID G-25772578 DIV VEN STACK R1 M0010 FHMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Air Train

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 986 B 0100 00108 ugSample 112719 0804 120819 0915 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 133 50 - 200 112719 0804 120819 0915 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Lab Sample ID 140-17458-2Client Sample ID G-257925802582 DIV VEN STACK R1 M0010 BH

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Air Train

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 213 B 0350 00700 ugSample 120219 1125 120819 0955 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 116 50 - 200 120219 1125 120819 0955 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Lab Sample ID 140-17458-3Client Sample ID G-2581 DIV VEN STACK R1 M0010 IMPINGERS 12amp3 COND

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Air Train

Method 8321A - HFPO-DARL MDL

HFPO-DA 0145 J 0212 00108 ugSample 112719 1236 120619 1241 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 116 50 - 200 112719 1236 120619 1241 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Lab Sample ID 140-17458-4Client Sample ID G-2583 DIV VEN STACK R1 M0010 BREAKTHROUGH XAD-2 RESIN TUBE

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Air Train

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 230 B 0200 00400 ugSample 120219 1125 120819 0958 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 126 50 - 200 120219 1125 120819 0958 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Eurofins TestAmerica Knoxville

12102019Page 11 of 21349

Client Sample ResultsJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

Lab Sample ID 140-17458-5Client Sample ID G-25842585 DIV VEN STACK R2 M0010 FHMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Air Train

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 658 B 0125 00135 ugSample 112719 0804 120819 0919 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 136 50 - 200 112719 0804 120819 0919 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Lab Sample ID 140-17458-6Client Sample ID G-258625872589 DIV VEN STACK R2 M0010 BH

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Air Train

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 363 B 0325 00650 ugSample 120219 1125 120819 1001 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 100 50 - 200 120219 1125 120819 1001 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Lab Sample ID 140-17458-7Client Sample ID G-2588 DIV VEN STACK R2 M0010 IMPINGERS 12amp3 COND

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Air Train

Method 8321A - HFPO-DARL MDL

HFPO-DA ND 0196 000999 ugSample 112719 1236 120619 1244 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 121 50 - 200 112719 1236 120619 1244 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Lab Sample ID 140-17458-8Client Sample ID G-2590 DIV VEN STACK R2 M0010 BREAKTHROUGH XAD-2 RESIN TUBE

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Air Train

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 219 B 0200 00400 ugSample 120219 1125 120819 1004 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 109 50 - 200 120219 1125 120819 1004 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Eurofins TestAmerica Knoxville

12102019Page 12 of 21350

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17458-1ProjectSite VEN Stack - M0010

Method 8321A - HFPO-DAPrep None

000250HFPO-DA ugSample

Analyte UnitsMDLRL

000128

Method 8321A - PFOA and PFOSPrep None

00250HFPO-DA ugSample

Analyte UnitsMDLRL

000270

0100HFPO-DA ugSample00200

Eurofins TestAmerica Knoxville

12102019Page 13 of 21351

ANALYTICAL REPORTJob Number 140-17461-1

Job Description VEN Stack - MM-18

Contract Number LBIO-67048

ForChemours Company FC LLC The

co AECOMSabre Building Suite 300

4051 Ogletown RoadNewark DE 19713

Attention Michael Aucoin

_____________________________________________

Approved for releaseCourtney M AdkinsProject Manager II12232019 300 PM

Courtney M Adkins Project Manager II5815 Middlebrook Pike Knoxville TN 37921

(865)291-3000 courtneyadkinstestamericainccom

12232019

This report may not be reproduced except in full and with written approval from the laboratory For questions please contact the Project Manager atthe e-mail address or telephone number listed on this page

The test results in this report relate only to the samples as received by the laboratory and will meet all requirements of the methodology with anyexceptions noted This report shall not be reproduced except in full without the express written approval of the laboratory All questions should bedirected to the Eurofins TestAmerica Project Manager

This report has been electronically signed and authorized by the signatory Electronic signature is intended to be the legally binding equivalent of atraditionally handwritten signature

Eurofins TestAmerica Knoxville

5815 Middlebrook Pike Knoxville TN 37921

Tel (865) 291-3000 Fax (865) 584-4315 wwwtestamericainccom

12232019Page 1 of 89452

Table of ContentsCover Title Page 1

Data Summaries 5

Definitions 5

Method Summary 6

Sample Summary 7

Case Narrative 8

QC Association 10

Client Sample Results 14

Default Detection Limits 43

Surrogate Summary 45

QC Sample Results 46

Chronicle 54

Certification Summary 63

Manual Integration Summary 64

Organic Sample Data 77

GCMS VOA 77

Method 8260B 77Method 8260B QC Summary 78Method 8260B Sample Data 93Standards Data 287

Method 8260B ICAL Data 287Method 8260B CCAL Data 389

Raw QC Data 437Method 8260B Tune Data 437Method 8260B Blank Data 453Method 8260B LCSLCSD Data 461

12232019Page 2 of 89453

Table of ContentsMethod 8260B MSMSD Data 474

Method 8260B Run Logs 482Method 8260B Prep Data 495

HPLCIC 498

Method 9056 498Method 9056 QC Summary 499Method 9056 Sample Data 502Standards Data 538

Method 9056 ICAL Data 538Method 9056 CCAL Data 565

Raw QC Data 612Method 9056 Blank Data 612Method 9056 LCSLCSD Data 638Method 9056 MSMSD Data 644

Method 9056 Run Logs 650Method 9056 Prep Data 664

Method 9056A Total Halogens 667Method 9056A Total Halogens QC Summary 668Method 9056A Total Halogens Sample Data 676Standards Data 715

Method 9056A Total Halogens ICAL Data 715Method 9056A Total Halogens CCAL Data 740

Raw QC Data 781Method 9056A Total Halogens Blank Data 781Method 9056A Total Halogens LCSLCSD Data 817Method 9056A Total Halogens MSMSD Data 831

12232019Page 3 of 89454

Table of ContentsMethod 9056A Total Halogens Run Logs 839Method 9056A Total Halogens Prep Data 855

Inorganic Sample Data 864

General Chemistry Data 864

Gen Chem Cover Page 865

Gen Chem Sample Data 866

Gen Chem QC Data 878Gen Chem ICVCCV 878Gen Chem Duplicates 879

Gen Chem MDL 880

Gen Chem Analysis Run Log 881

Gen Chem Prep Data 882

Gen Chem Raw Data 884

Shipping and Receiving Documents 886

Client Chain of Custody 887

12232019Page 4 of 89455

DefinitionsGlossaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Qualifiers

GCMS VOAQualifier Description

LCS or LCSD is outside acceptance limits

Qualifier

H Sample was prepped or analyzed beyond the specified holding time

GCMS VOA TICsQualifier Description

H Sample was prepped or analyzed beyond the specified holding time

Qualifier

J Indicates an Estimated Value for TICs

N Presumptive evidence of material

T Result is a tentatively identified compound (TIC) and an estimated value

HPLCICQualifier Description

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

Qualifier

General ChemistryQualifier Description

HF Field parameter with a holding time of 15 minutes Test performed by laboratory at clients request

Qualifier

GlossaryThese commonly used abbreviations may or may not be present in this report

curren Listed under the D column to designate that the result is reported on a dry weight basis

Abbreviation

R Percent Recovery

CFL Contains Free Liquid

CNF Contains No Free Liquid

DER Duplicate Error Ratio (normalized absolute difference)

Dil Fac Dilution Factor

DL Detection Limit (DoDDOE)

DL RA RE IN Indicates a Dilution Re-analysis Re-extraction or additional Initial metalsanion analysis of the sample

DLC Decision Level Concentration (Radiochemistry)

EDL Estimated Detection Limit (Dioxin)

LOD Limit of Detection (DoDDOE)

LOQ Limit of Quantitation (DoDDOE)

MDA Minimum Detectable Activity (Radiochemistry)

MDC Minimum Detectable Concentration (Radiochemistry)

MDL Method Detection Limit

ML Minimum Level (Dioxin)

NC Not Calculated

ND Not Detected at the reporting limit (or MDL or EDL if shown)

PQL Practical Quantitation Limit

QC Quality Control

RER Relative Error Ratio (Radiochemistry)

RL Reporting Limit or Requested Limit (Radiochemistry)

RPD Relative Percent Difference a measure of the relative difference between two points

TEF Toxicity Equivalent Factor (Dioxin)

TEQ Toxicity Equivalent Quotient (Dioxin)

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12232019Page 5 of 89456

Method SummaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Method Method Description LaboratoryProtocol

SW8468260B Volatile Organic Compounds (GCMS) TAL KNX

SW8469056 Anions Ion Chromatography TAL KNX

SW8469041A pH TAL KNX

SW8465050 Bomb Preparation Method for Solid Waste TAL KNX

NoneMeOH Prep Methanol Impinger Preparation TAL KNX

Protocol References

None = None

SW846 = Test Methods For Evaluating Solid Waste PhysicalChemical Methods Third Edition November 1986 And Its Updates

Laboratory References

TAL KNX = Eurofins TestAmerica Knoxville 5815 Middlebrook Pike Knoxville TN 37921 TEL (865)291-3000

Eurofins TestAmerica Knoxville

12232019Page 6 of 89457

Sample SummaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID Client Sample ID ReceivedCollectedMatrix Asset ID

140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 Air 112219 0000 112519 0800

140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 Air 112219 0000 112519 0800

140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 Air 112219 0000 112519 0800

140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 Air 112219 0000 112519 0800

140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 Air 112219 0000 112519 0800

140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 Air 112219 0000 112519 0800

140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 Air 112219 0000 112519 0800

140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 Air 112219 0000 112519 0800

140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 Air 112219 0000 112519 0800

140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 Air 112219 0000 112519 0800

140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 Air 112219 0000 112519 0800

140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 Air 112219 0000 112519 0800

Eurofins TestAmerica Knoxville

12232019Page 7 of 89458

Job Narrative140-17461-1

Sample Receipt

The samples were received on November 25 2019 at 800 AM in good condition and properly preserved The temperature of the cooler at receipt was 16ordm C

GCMS VOA

Impinger Sample Preparation and Analysis Impinger samples were analyzed for the volatile organic target analytes by purge and trap GCMS using Eurofins TestAmerica Knoxville standard operating procedure KNOX-MS-0015 based on the following method

middot SW-846 8260B ldquoVolatile Organic Compounds by Gas Chromatography Mass Spectrometry (GCMS)rdquo

Each sample is prepared by adding a known amount of sample to the purge water in a purge and trap vessel and spiking with internal standards surrogates and matrix spike analytes (as needed) Volatile compounds are introduced into the gas chromatograph by the purge and trap method The components are separated using the chromatograph and detected using a mass spectrometer which provides both qualitative and quantitative information

Impinger sample results were calculated using the following equation

Concentration μgsample = (C times DF times W times Vt) (Va)WhereC = On-column concentration μgLDF = Dilution factorW = Volume of water purged LVt = Methanol extract final volume μL Va = Volume of extract analyzed microL

Method 8260B The LCS (LCS 140-357061-A) for analytical batch 140-35903 recovered below marginal exceedance limits for Trichlorofluoromethane This is an ongoing instrument issue with LCS recoveries for this analyte The project manager approved moving forward with analysis for the current job

Method 8260B The following samples were analyzed outside of analytical holding time due to ongoing instrumentation problems Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 (140-17461-9) Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 (140-17461-10) Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 (140-17461-11) and Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 (140-17461-12)

No additional analytical or quality issues were noted other than those described above or in the DefinitionsGlossary page

Total Halogens The samples were prepared for total fluorine chlorine bromine andor iodine using SOP number KNOX-WC-0016 (based on ASTM Method E442 and SW-846 Method 5050) The sample is oxidized by combustion in an oxygen flask at atmospheric pressure or a bomb containing oxygen under pressure The liberated halogen compounds are absorbed primarily as halides in a sodium carbonatesodium bicarbonate buffer solution The combustion products are collected by repeated rinsing of the combustion apparatus and analyzed by ion chromatography in accordance with SOP KNOX-WC-0005 (based on SW-846 Method 9056) The results are calculated using the following equation

C = [(Ccom times Vcom) W] times 1000 gKg

WhereC = Concentration of analyte in the sample mgKgCcom = Concentration of analyte in the combustate mgLVcom = Total volume of combustate LW = Weight of sample combusted g

Anions in Impinger Solutions Anions are is determined in accordance to SOP KNOX-WC-0005 (based on methods 3000A and 9056) The samples were diluted a minimum of 120 in ion chromatography solvent buffer solution to reduce the methanol concentration before injection Buffer concentrate was added until the pH was 10 Samples are diluted with ion chromatography eluate solution to bring the concentrations within the calibration range when necessary Higher dilutions are applied as necessary

An aliquot of prepared sample is introduced into the ion chromatograph Anions are identified based on their retention times as compared to those of known standards Quantification is accomplished by measuring the peak response and comparing it to a calibration curve generated from known standards

12232019Page 8 of 89459

The pH of all samples were tested with pH paper QC consisted of initial CCV and LCS which also serve as initial calibration duplicate analysis for every 10 samples and closing CCV A certified thermometer was used to check the ambient temperature

12232019Page 9 of 89460

QC Association SummaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

GCMS VOA

Prep Batch 35706

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air MeOH Prep140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air MeOH Prep140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air MeOH Prep140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH Prep140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air MeOH Prep140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air MeOH Prep140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air MeOH Prep140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH PrepMB 140-357062-A Method Blank TotalNA

Air MeOH PrepLCS 140-357061-A Lab Control Sample TotalNA

Air MeOH Prep140-17461-8 MS Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17461-8 MSD Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Analysis Batch 35903

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8260B 35706140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 8260B 35706140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 8260B 35706140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 8260B 35706140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 8260B 35706140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 8260B 35706140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 8260B 35706140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 8260B 35706140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 8260B 35706140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 8260B 35706140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 8260B 35706140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 8260B 35706140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 8260B 35706MB 140-357062-A Method Blank TotalNA

Air 8260B 35706LCS 140-357061-A Lab Control Sample TotalNA

Air 8260B 35706LCS 140-357061-A Lab Control Sample TotalNA

Air 8260B 35706140-17461-8 MS Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 8260B 35706140-17461-8 MSD Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

HPLCIC

Prep Batch 35705

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH PrepMB 140-3570514-B Method Blank TotalNA

Air MeOH PrepLCS 140-3570515-B Lab Control Sample TotalNA

Air MeOH PrepLCSD 140-3570516-B Lab Control Sample Dup TotalNA

Prep Batch 35706

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air MeOH Prep140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Eurofins TestAmerica Knoxville

12232019Page 10 of 89461

QC Association SummaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

HPLCIC (Continued)

Prep Batch 35706 (Continued)

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air MeOH Prep140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH Prep140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air MeOH Prep140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air MeOH Prep140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air MeOH Prep140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH PrepMB 140-3570617-A Method Blank TotalNA

Air MeOH PrepLCS 140-3570618-A Lab Control Sample TotalNA

Air MeOH PrepLCSD 140-3570619-A Lab Control Sample Dup TotalNA

Air MeOH Prep140-17461-8 MS Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17461-8 MSD Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Prep Batch 35707

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH PrepMB 140-3570717-B Method Blank TotalNA

Air MeOH PrepLCS 140-3570718-B Lab Control Sample TotalNA

Air MeOH PrepLCSD 140-3570719-B Lab Control Sample Dup TotalNA

Prep Batch 35761

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 5050 35706140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 5050 35706140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 5050 35706140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 5050 35706140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 5050 35706140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 5050 35706140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 5050 35706140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 5050 35707MB 140-3570717-B Method Blank TotalNA

Air 5050 35707LCS 140-3570718-B Lab Control Sample TotalNA

Air 5050 35707LCSD 140-3570719-B Lab Control Sample Dup TotalNA

Prep Batch 35762

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 5050 35706140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 5050 35706140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 5050 35706140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 5050 35706140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 5050 35706140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 5050 35705MB 140-3570514-B Method Blank TotalNA

Air 5050 35705LCS 140-3570515-B Lab Control Sample TotalNA

Air 5050 35705LCSD 140-3570516-B Lab Control Sample Dup TotalNA

Air 5050 35706140-17461-8 MS Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 5050 35706140-17461-8 MSD Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Analysis Batch 36005

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35761140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9056 35761140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35761140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Eurofins TestAmerica Knoxville

12232019Page 11 of 89462

QC Association SummaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

HPLCIC (Continued)

Analysis Batch 36005 (Continued)

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35761140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9056 35761140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9056 35761140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9056 35761140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9056 35761MB 140-3570717-B Method Blank TotalNA

Air 9056 35761LCS 140-3570718-B Lab Control Sample TotalNA

Air 9056 35761LCSD 140-3570719-B Lab Control Sample Dup TotalNA

Analysis Batch 36121

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35762140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35762140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9056 35762140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9056 35762140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9056 35762140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9056 35762MB 140-3570514-B Method Blank TotalNA

Air 9056 35762LCS 140-3570515-B Lab Control Sample TotalNA

Air 9056 35762LCSD 140-3570516-B Lab Control Sample Dup TotalNA

Air 9056 35762140-17461-8 MS Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35762140-17461-8 MSD Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Analysis Batch 36210

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35706140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9056 35706140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35706140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9056 35706140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9056 35706140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9056 35706140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9056 35706140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9056 35706140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35706140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9056 35706140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9056 35706140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9056 35706140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9056 35706MB 140-3570617-A Method Blank TotalNA

Air 9056 35706LCS 140-3570618-A Lab Control Sample TotalNA

Air 9056 35706LCSD 140-3570619-A Lab Control Sample Dup TotalNA

Air 9056 35706140-17461-8 MS Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35706140-17461-8 MSD Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

General Chemistry

Analysis Batch 36086

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9041A140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9041A140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9041A140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9041A140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9041A140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9041A140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

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QC Association SummaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

General Chemistry (Continued)

Analysis Batch 36086 (Continued)

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9041A140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9041A140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9041A140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9041A140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9041A140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9041A140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9041ALCS 140-360862 Lab Control Sample TotalNA

Air 9041A140-17461-1 DU Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9041A140-17461-2 DU Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9041A140-17461-3 DU Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

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12232019Page 13 of 89464

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-1Client Sample ID Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 426 562 ugSample 112919 1048 120619 2054 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

852 852 ugSample 112919 1048 120619 2054 111133-Pentafluorobutane ND

426 613 ugSample 112919 1048 120619 2054 1111-Trichloroethane ND

852 169 ugSample 112919 1048 120619 2054 1111-Trifluoro-22-dichloroethane ND

852 852 ugSample 112919 1048 120619 2054 1111-Trifluoroethane ND

426 818 ugSample 112919 1048 120619 2054 11122-Tetrachloroethane ND

852 477 ugSample 112919 1048 120619 2054 1112-Trichloro-122-trifluoroethane ND

852 852 ugSample 112919 1048 120619 2054 1112-trichloro-1-fluoroethane ND

426 443 ugSample 112919 1048 120619 2054 1112-Trichloroethane ND

852 426 ugSample 112919 1048 120619 2054 111-Dichloro-1-fluoroethane ND

852 852 ugSample 112919 1048 120619 2054 111-dichloro-22-difluoroethane ND

852 852 ugSample 112919 1048 120619 2054 111-dichloro-22-difluoroethene ND

426 511 ugSample 112919 1048 120619 2054 111-Dichloroethane ND

426 630 ugSample 112919 1048 120619 2054 111-Dichloroethene ND

426 460 ugSample 112919 1048 120619 2054 111-Dichloropropene ND

852 852 ugSample 112919 1048 120619 2054 111-Difluoroethene ND

852 852 ugSample 112919 1048 120619 2054 1122-trichloro-11-difluoroethane ND

426 136 ugSample 112919 1048 120619 2054 1123-Trichlorobenzene ND

426 106 ugSample 112919 1048 120619 2054 1123-Trichloropropane ND

426 143 ugSample 112919 1048 120619 2054 1124-Trichlorobenzene ND

426 886 ugSample 112919 1048 120619 2054 1124-Trimethylbenzene ND

852 150 ugSample 112919 1048 120619 2054 112-Dibromo-3-Chloropropane ND

426 562 ugSample 112919 1048 120619 2054 112-Dibromoethane (EDB) ND

852 852 ugSample 112919 1048 120619 2054 112-dichloro-11-difluoroethane ND

426 749 ugSample 112919 1048 120619 2054 112-Dichlorobenzene ND

426 715 ugSample 112919 1048 120619 2054 112-Dichloroethane ND

426 426 ugSample 112919 1048 120619 2054 112-Dichloropropane ND

426 886 ugSample 112919 1048 120619 2054 1135-Trimethylbenzene ND

426 732 ugSample 112919 1048 120619 2054 113-Dichlorobenzene ND

426 477 ugSample 112919 1048 120619 2054 113-Dichloropropane ND

426 852 ugSample 112919 1048 120619 2054 114-Dichlorobenzene ND

852 869 ugSample 112919 1048 120619 2054 11-Chloro-11-difluoroethane ND

852 852 ugSample 112919 1048 120619 2054 122-dichloro-11-difluoroethylmethyl

ether

ND

426 124 ugSample 112919 1048 120619 2054 122-Dichloropropane ND

170 273 ugSample 112919 1048 120619 2054 12-Butanone (MEK) ND

852 126 ugSample 112919 1048 120619 2054 12-chloro-111444-hexafluoro-2-but

ene

ND

852 852 ugSample 112919 1048 120619 2054 12-Chloro-111-Trifluoroethane ND

426 801 ugSample 112919 1048 120619 2054 12-Chlorotoluene ND

170 392 ugSample 112919 1048 120619 2054 12-Hexanone ND

372 372 ugSample 112919 1048 120619 2054 12-MTP as HFPO 820

426 886 ugSample 112919 1048 120619 2054 14-Chlorotoluene ND

426 114 ugSample 112919 1048 120619 2054 14-Isopropyltoluene ND

170 273 ugSample 112919 1048 120619 2054 14-Methyl-2-pentanone (MIBK) ND

170 101 ugSample 112919 1048 120619 2054 1Acetone ND

426 818 ugSample 112919 1048 120619 2054 1Benzene ND

426 596 ugSample 112919 1048 120619 2054 1Bromobenzene ND

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-1Client Sample ID Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromochloromethane ND 426 954 ugSample 112919 1048 120619 2054 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

426 732 ugSample 112919 1048 120619 2054 1Bromodichloromethane ND

426 129 ugSample 112919 1048 120619 2054 1Bromoform ND

852 494 ugSample 112919 1048 120619 2054 1Bromomethane ND

426 106 ugSample 112919 1048 120619 2054 1Carbon disulfide ND

426 562 ugSample 112919 1048 120619 2054 1Carbon tetrachloride ND

125 125 ugSample 112919 1048 120619 2054 1Carbonyl Difluoride ND

426 613 ugSample 112919 1048 120619 2054 1Chlorobenzene ND

426 920 ugSample 112919 1048 120619 2054 1Chlorodibromomethane ND

852 187 ugSample 112919 1048 120619 2054 1Chloroethane ND

426 494 ugSample 112919 1048 120619 2054 1Chloroform ND

852 354 ugSample 112919 1048 120619 2054 1Chloromethane ND

426 341 ugSample 112919 1048 120619 2054 1cis-12-Dichloroethene ND

426 732 ugSample 112919 1048 120619 2054 1cis-13-Dichloropropene ND

426 409 ugSample 112919 1048 120619 2054 1Dibromomethane ND

852 150 ugSample 112919 1048 120619 2054 1Dichlorodifluoromethane ND

426 698 ugSample 112919 1048 120619 2054 1Ethylbenzene ND

426 426 ugSample 112919 1048 120619 2054 1Heptafluoropropyl 1222-tetrafluoroethyl ether

111

426 112 ugSample 112919 1048 120619 2054 1Hexachlorobutadiene ND

409 409 ugSample 112919 1048 120619 2054 1HFPO dimer methyl ester as

HFPO-DA

ND

426 596 ugSample 112919 1048 120619 2054 1Isopropylbenzene ND

852 698 ugSample 112919 1048 120619 2054 1mp-Xylene ND

426 273 ugSample 112919 1048 120619 2054 1Methylene Chloride 687

426 204 ugSample 112919 1048 120619 2054 1Naphthalene ND

426 109 ugSample 112919 1048 120619 2054 1n-Butylbenzene ND

426 920 ugSample 112919 1048 120619 2054 1n-Propylbenzene ND

426 443 ugSample 112919 1048 120619 2054 1o-Xylene ND

426 835 ugSample 112919 1048 120619 2054 1sec-Butylbenzene ND

426 920 ugSample 112919 1048 120619 2054 1Styrene ND

426 749 ugSample 112919 1048 120619 2054 1tert-Butylbenzene ND

426 562 ugSample 112919 1048 120619 2054 1Tetrachloroethene ND

426 784 ugSample 112919 1048 120619 2054 1Toluene ND

426 443 ugSample 112919 1048 120619 2054 1trans-12-Dichloroethene ND

426 150 ugSample 112919 1048 120619 2054 1trans-13-Dichloropropene ND

426 307 ugSample 112919 1048 120619 2054 1Trichloroethene ND

852 818 ugSample 112919 1048 120619 2054 1Trichlorofluoromethane ND

852 204 ugSample 112919 1048 120619 2054 1Vinyl chloride ND

Butanoic acid heptafluoro- sodium

salt

437 T J N ugSample 113 2218-54-4 112919 1048 120619 2054 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2054112919 1048T JUnknown 489 ugSample 118

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1048 120619 2054 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 110 112919 1048 120619 2054 157 - 152

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-1Client Sample ID Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)

Dibromofluoromethane (Surr) 104 62 - 134 112919 1048 120619 2054 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Toluene-d8 (Surr) 97 112919 1048 120619 2054 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine ND 9080 4540 ugSample 112919 1048 121119 2121 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

3750 1700 ugSample 112919 1048 121719 1902 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-2Client Sample ID Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 461 608 ugSample 112919 1048 120619 2119 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

922 922 ugSample 112919 1048 120619 2119 111133-Pentafluorobutane ND

461 664 ugSample 112919 1048 120619 2119 1111-Trichloroethane ND

922 182 ugSample 112919 1048 120619 2119 1111-Trifluoro-22-dichloroethane ND

922 922 ugSample 112919 1048 120619 2119 1111-Trifluoroethane ND

461 885 ugSample 112919 1048 120619 2119 11122-Tetrachloroethane ND

922 516 ugSample 112919 1048 120619 2119 1112-Trichloro-122-trifluoroethane ND

922 922 ugSample 112919 1048 120619 2119 1112-trichloro-1-fluoroethane ND

461 479 ugSample 112919 1048 120619 2119 1112-Trichloroethane ND

922 461 ugSample 112919 1048 120619 2119 111-Dichloro-1-fluoroethane ND

922 922 ugSample 112919 1048 120619 2119 111-dichloro-22-difluoroethane ND

922 922 ugSample 112919 1048 120619 2119 111-dichloro-22-difluoroethene ND

461 553 ugSample 112919 1048 120619 2119 111-Dichloroethane ND

461 682 ugSample 112919 1048 120619 2119 111-Dichloroethene ND

461 498 ugSample 112919 1048 120619 2119 111-Dichloropropene ND

922 922 ugSample 112919 1048 120619 2119 111-Difluoroethene ND

922 922 ugSample 112919 1048 120619 2119 1122-trichloro-11-difluoroethane ND

461 147 ugSample 112919 1048 120619 2119 1123-Trichlorobenzene ND

461 114 ugSample 112919 1048 120619 2119 1123-Trichloropropane ND

461 155 ugSample 112919 1048 120619 2119 1124-Trichlorobenzene ND

461 959 ugSample 112919 1048 120619 2119 1124-Trimethylbenzene ND

922 162 ugSample 112919 1048 120619 2119 112-Dibromo-3-Chloropropane ND

461 608 ugSample 112919 1048 120619 2119 112-Dibromoethane (EDB) ND

922 922 ugSample 112919 1048 120619 2119 112-dichloro-11-difluoroethane ND

461 811 ugSample 112919 1048 120619 2119 112-Dichlorobenzene ND

461 774 ugSample 112919 1048 120619 2119 112-Dichloroethane ND

461 461 ugSample 112919 1048 120619 2119 112-Dichloropropane ND

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-2Client Sample ID Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

135-Trimethylbenzene ND 461 959 ugSample 112919 1048 120619 2119 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

461 793 ugSample 112919 1048 120619 2119 113-Dichlorobenzene ND

461 516 ugSample 112919 1048 120619 2119 113-Dichloropropane ND

461 922 ugSample 112919 1048 120619 2119 114-Dichlorobenzene ND

922 940 ugSample 112919 1048 120619 2119 11-Chloro-11-difluoroethane ND

922 922 ugSample 112919 1048 120619 2119 122-dichloro-11-difluoroethylmethyl

ether

ND

461 135 ugSample 112919 1048 120619 2119 122-Dichloropropane ND

184 295 ugSample 112919 1048 120619 2119 12-Butanone (MEK) ND

922 136 ugSample 112919 1048 120619 2119 12-chloro-111444-hexafluoro-2-but

ene

ND

922 922 ugSample 112919 1048 120619 2119 12-Chloro-111-Trifluoroethane ND

461 866 ugSample 112919 1048 120619 2119 12-Chlorotoluene ND

184 424 ugSample 112919 1048 120619 2119 12-Hexanone ND

403 403 ugSample 112919 1048 120619 2119 12-MTP as HFPO 819

461 959 ugSample 112919 1048 120619 2119 14-Chlorotoluene ND

461 124 ugSample 112919 1048 120619 2119 14-Isopropyltoluene ND

184 295 ugSample 112919 1048 120619 2119 14-Methyl-2-pentanone (MIBK) ND

184 109 ugSample 112919 1048 120619 2119 1Acetone ND

461 885 ugSample 112919 1048 120619 2119 1Benzene ND

461 645 ugSample 112919 1048 120619 2119 1Bromobenzene ND

461 103 ugSample 112919 1048 120619 2119 1Bromochloromethane ND

461 793 ugSample 112919 1048 120619 2119 1Bromodichloromethane ND

461 140 ugSample 112919 1048 120619 2119 1Bromoform ND

922 535 ugSample 112919 1048 120619 2119 1Bromomethane ND

461 114 ugSample 112919 1048 120619 2119 1Carbon disulfide ND

461 608 ugSample 112919 1048 120619 2119 1Carbon tetrachloride ND

135 135 ugSample 112919 1048 120619 2119 1Carbonyl Difluoride ND

461 664 ugSample 112919 1048 120619 2119 1Chlorobenzene ND

461 995 ugSample 112919 1048 120619 2119 1Chlorodibromomethane ND

922 203 ugSample 112919 1048 120619 2119 1Chloroethane ND

461 535 ugSample 112919 1048 120619 2119 1Chloroform ND

922 383 ugSample 112919 1048 120619 2119 1Chloromethane ND

461 369 ugSample 112919 1048 120619 2119 1cis-12-Dichloroethene ND

461 793 ugSample 112919 1048 120619 2119 1cis-13-Dichloropropene ND

461 442 ugSample 112919 1048 120619 2119 1Dibromomethane ND

922 162 ugSample 112919 1048 120619 2119 1Dichlorodifluoromethane ND

461 756 ugSample 112919 1048 120619 2119 1Ethylbenzene ND

461 461 ugSample 112919 1048 120619 2119 1Heptafluoropropyl 1222-tetrafluoroethyl ether

161

461 122 ugSample 112919 1048 120619 2119 1Hexachlorobutadiene ND

442 442 ugSample 112919 1048 120619 2119 1HFPO dimer methyl ester as

HFPO-DA

ND

461 645 ugSample 112919 1048 120619 2119 1Isopropylbenzene ND

922 756 ugSample 112919 1048 120619 2119 1mp-Xylene ND

461 295 ugSample 112919 1048 120619 2119 1Methylene Chloride 568

461 221 ugSample 112919 1048 120619 2119 1Naphthalene ND

461 118 ugSample 112919 1048 120619 2119 1n-Butylbenzene ND

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-2Client Sample ID Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

n-Propylbenzene ND 461 995 ugSample 112919 1048 120619 2119 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

461 479 ugSample 112919 1048 120619 2119 1o-Xylene ND

461 903 ugSample 112919 1048 120619 2119 1sec-Butylbenzene ND

461 995 ugSample 112919 1048 120619 2119 1Styrene ND

461 811 ugSample 112919 1048 120619 2119 1tert-Butylbenzene ND

461 608 ugSample 112919 1048 120619 2119 1Tetrachloroethene ND

461 848 ugSample 112919 1048 120619 2119 1Toluene ND

461 479 ugSample 112919 1048 120619 2119 1trans-12-Dichloroethene ND

461 162 ugSample 112919 1048 120619 2119 1trans-13-Dichloropropene ND

461 332 ugSample 112919 1048 120619 2119 1Trichloroethene ND

922 885 ugSample 112919 1048 120619 2119 1Trichlorofluoromethane ND

922 221 ugSample 112919 1048 120619 2119 1Vinyl chloride ND

Unknown 561 T J ugSample 113 112919 1048 120619 2119 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2119112919 1048T JUnknown 1150 ugSample 118

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1048 120619 2119 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 112919 1048 120619 2119 157 - 152

Dibromofluoromethane (Surr) 104 112919 1048 120619 2119 162 - 134

Toluene-d8 (Surr) 96 112919 1048 120619 2119 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 27900 9830 4920 ugSample 112919 1048 121119 2142 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

4060 1840 ugSample 112919 1048 121719 2006 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-3Client Sample ID Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 858 113 ugSample 112919 1048 120619 2143 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

172 172 ugSample 112919 1048 120619 2143 111133-Pentafluorobutane ND

858 124 ugSample 112919 1048 120619 2143 1111-Trichloroethane ND

172 340 ugSample 112919 1048 120619 2143 1111-Trifluoro-22-dichloroethane ND

172 172 ugSample 112919 1048 120619 2143 1111-Trifluoroethane ND

858 165 ugSample 112919 1048 120619 2143 11122-Tetrachloroethane ND

172 0961 ugSample 112919 1048 120619 2143 1112-Trichloro-122-trifluoroethane ND

172 172 ugSample 112919 1048 120619 2143 1112-trichloro-1-fluoroethane ND

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-3Client Sample ID Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

112-Trichloroethane ND 858 0892 ugSample 112919 1048 120619 2143 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

172 858 ugSample 112919 1048 120619 2143 111-Dichloro-1-fluoroethane ND

172 172 ugSample 112919 1048 120619 2143 111-dichloro-22-difluoroethane ND

172 172 ugSample 112919 1048 120619 2143 111-dichloro-22-difluoroethene ND

858 103 ugSample 112919 1048 120619 2143 111-Dichloroethane ND

858 127 ugSample 112919 1048 120619 2143 111-Dichloroethene ND

858 0926 ugSample 112919 1048 120619 2143 111-Dichloropropene ND

172 172 ugSample 112919 1048 120619 2143 111-Difluoroethene ND

172 172 ugSample 112919 1048 120619 2143 1122-trichloro-11-difluoroethane ND

858 274 ugSample 112919 1048 120619 2143 1123-Trichlorobenzene ND

858 213 ugSample 112919 1048 120619 2143 1123-Trichloropropane ND

858 288 ugSample 112919 1048 120619 2143 1124-Trichlorobenzene ND

858 178 ugSample 112919 1048 120619 2143 1124-Trimethylbenzene ND

172 302 ugSample 112919 1048 120619 2143 112-Dibromo-3-Chloropropane ND

858 113 ugSample 112919 1048 120619 2143 112-Dibromoethane (EDB) ND

172 172 ugSample 112919 1048 120619 2143 112-dichloro-11-difluoroethane ND

858 151 ugSample 112919 1048 120619 2143 112-Dichlorobenzene ND

858 144 ugSample 112919 1048 120619 2143 112-Dichloroethane ND

858 0858 ugSample 112919 1048 120619 2143 112-Dichloropropane ND

858 178 ugSample 112919 1048 120619 2143 1135-Trimethylbenzene ND

858 148 ugSample 112919 1048 120619 2143 113-Dichlorobenzene ND

858 0961 ugSample 112919 1048 120619 2143 113-Dichloropropane ND

858 172 ugSample 112919 1048 120619 2143 114-Dichlorobenzene ND

172 175 ugSample 112919 1048 120619 2143 11-Chloro-11-difluoroethane ND

172 172 ugSample 112919 1048 120619 2143 122-dichloro-11-difluoroethylmethyl

ether

ND

858 250 ugSample 112919 1048 120619 2143 122-Dichloropropane ND

343 549 ugSample 112919 1048 120619 2143 12-Butanone (MEK) ND

172 254 ugSample 112919 1048 120619 2143 12-chloro-111444-hexafluoro-2-but

ene

ND

172 172 ugSample 112919 1048 120619 2143 12-Chloro-111-Trifluoroethane ND

858 161 ugSample 112919 1048 120619 2143 12-Chlorotoluene ND

343 789 ugSample 112919 1048 120619 2143 12-Hexanone ND

749 749 ugSample 112919 1048 120619 2143 12-MTP as HFPO 604

858 178 ugSample 112919 1048 120619 2143 14-Chlorotoluene ND

858 230 ugSample 112919 1048 120619 2143 14-Isopropyltoluene ND

343 549 ugSample 112919 1048 120619 2143 14-Methyl-2-pentanone (MIBK) ND

343 202 ugSample 112919 1048 120619 2143 1Acetone ND

858 165 ugSample 112919 1048 120619 2143 1Benzene ND

858 120 ugSample 112919 1048 120619 2143 1Bromobenzene ND

858 192 ugSample 112919 1048 120619 2143 1Bromochloromethane ND

858 148 ugSample 112919 1048 120619 2143 1Bromodichloromethane ND

858 261 ugSample 112919 1048 120619 2143 1Bromoform ND

172 995 ugSample 112919 1048 120619 2143 1Bromomethane ND

858 213 ugSample 112919 1048 120619 2143 1Carbon disulfide ND

858 113 ugSample 112919 1048 120619 2143 1Carbon tetrachloride ND

251 251 ugSample 112919 1048 120619 2143 1Carbonyl Difluoride ND

858 124 ugSample 112919 1048 120619 2143 1Chlorobenzene ND

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ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-3Client Sample ID Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Chlorodibromomethane ND 858 185 ugSample 112919 1048 120619 2143 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

172 377 ugSample 112919 1048 120619 2143 1Chloroethane ND

858 0995 ugSample 112919 1048 120619 2143 1Chloroform ND

172 714 ugSample 112919 1048 120619 2143 1Chloromethane ND

858 0686 ugSample 112919 1048 120619 2143 1cis-12-Dichloroethene ND

858 148 ugSample 112919 1048 120619 2143 1cis-13-Dichloropropene ND

858 0823 ugSample 112919 1048 120619 2143 1Dibromomethane ND

172 302 ugSample 112919 1048 120619 2143 1Dichlorodifluoromethane ND

858 141 ugSample 112919 1048 120619 2143 1Ethylbenzene ND

858 858 ugSample 112919 1048 120619 2143 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

858 226 ugSample 112919 1048 120619 2143 1Hexachlorobutadiene ND

823 823 ugSample 112919 1048 120619 2143 1HFPO dimer methyl ester as

HFPO-DA

ND

858 120 ugSample 112919 1048 120619 2143 1Isopropylbenzene ND

172 141 ugSample 112919 1048 120619 2143 1mp-Xylene ND

858 549 ugSample 112919 1048 120619 2143 1Methylene Chloride ND

858 412 ugSample 112919 1048 120619 2143 1Naphthalene ND

858 220 ugSample 112919 1048 120619 2143 1n-Butylbenzene ND

858 185 ugSample 112919 1048 120619 2143 1n-Propylbenzene ND

858 0892 ugSample 112919 1048 120619 2143 1o-Xylene ND

858 168 ugSample 112919 1048 120619 2143 1sec-Butylbenzene ND

858 185 ugSample 112919 1048 120619 2143 1Styrene ND

858 151 ugSample 112919 1048 120619 2143 1tert-Butylbenzene ND

858 113 ugSample 112919 1048 120619 2143 1Tetrachloroethene ND

858 158 ugSample 112919 1048 120619 2143 1Toluene ND

858 0892 ugSample 112919 1048 120619 2143 1trans-12-Dichloroethene ND

858 302 ugSample 112919 1048 120619 2143 1trans-13-Dichloropropene ND

858 0618 ugSample 112919 1048 120619 2143 1Trichloroethene ND

172 165 ugSample 112919 1048 120619 2143 1Trichlorofluoromethane ND

172 412 ugSample 112919 1048 120619 2143 1Vinyl chloride ND

Unknown 201 T J ugSample 113 112919 1048 120619 2143 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2143112919 1048T JUnknown 996 ugSample 118

1120619 2143112919 1048T J NCyclohexane 110-82-7248 ugSample 442

1120619 2143112919 1048T J N1-Dodecene 112-41-4105 ugSample 1207

1120619 2143112919 1048T J NCyclohexane hexyl- 4292-75-5129 ugSample 1269

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1048 120619 2143 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 112919 1048 120619 2143 157 - 152

Dibromofluoromethane (Surr) 102 112919 1048 120619 2143 162 - 134

Toluene-d8 (Surr) 97 112919 1048 120619 2143 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 9710 1830 915 ugSample 112919 1048 121119 2203 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-3Client Sample ID Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 9056 - Anions Ion Chromatography (Continued)RL MDL

Hydrogen Fluoride ND 755 343 ugSample 112919 1048 121719 2029 20

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-4Client Sample ID Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 264 349 ugSample 112919 1048 120619 2208 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

529 529 ugSample 112919 1048 120619 2208 111133-Pentafluorobutane ND

264 381 ugSample 112919 1048 120619 2208 1111-Trichloroethane ND

529 105 ugSample 112919 1048 120619 2208 1111-Trifluoro-22-dichloroethane ND

529 529 ugSample 112919 1048 120619 2208 1111-Trifluoroethane ND

264 508 ugSample 112919 1048 120619 2208 11122-Tetrachloroethane ND

529 296 ugSample 112919 1048 120619 2208 1112-Trichloro-122-trifluoroethane ND

529 529 ugSample 112919 1048 120619 2208 1112-trichloro-1-fluoroethane ND

264 275 ugSample 112919 1048 120619 2208 1112-Trichloroethane ND

529 264 ugSample 112919 1048 120619 2208 111-Dichloro-1-fluoroethane ND

529 529 ugSample 112919 1048 120619 2208 111-dichloro-22-difluoroethane ND

529 529 ugSample 112919 1048 120619 2208 111-dichloro-22-difluoroethene ND

264 317 ugSample 112919 1048 120619 2208 111-Dichloroethane ND

264 391 ugSample 112919 1048 120619 2208 111-Dichloroethene ND

264 286 ugSample 112919 1048 120619 2208 111-Dichloropropene ND

529 529 ugSample 112919 1048 120619 2208 111-Difluoroethene ND

529 529 ugSample 112919 1048 120619 2208 1122-trichloro-11-difluoroethane ND

264 846 ugSample 112919 1048 120619 2208 1123-Trichlorobenzene ND

264 656 ugSample 112919 1048 120619 2208 1123-Trichloropropane ND

264 889 ugSample 112919 1048 120619 2208 1124-Trichlorobenzene ND

264 550 ugSample 112919 1048 120619 2208 1124-Trimethylbenzene ND

529 931 ugSample 112919 1048 120619 2208 112-Dibromo-3-Chloropropane ND

264 349 ugSample 112919 1048 120619 2208 112-Dibromoethane (EDB) ND

529 529 ugSample 112919 1048 120619 2208 112-dichloro-11-difluoroethane ND

264 465 ugSample 112919 1048 120619 2208 112-Dichlorobenzene ND

264 444 ugSample 112919 1048 120619 2208 112-Dichloroethane ND

264 264 ugSample 112919 1048 120619 2208 112-Dichloropropane ND

264 550 ugSample 112919 1048 120619 2208 1135-Trimethylbenzene ND

264 455 ugSample 112919 1048 120619 2208 113-Dichlorobenzene ND

264 296 ugSample 112919 1048 120619 2208 113-Dichloropropane ND

264 529 ugSample 112919 1048 120619 2208 114-Dichlorobenzene ND

529 539 ugSample 112919 1048 120619 2208 11-Chloro-11-difluoroethane ND

529 529 ugSample 112919 1048 120619 2208 122-dichloro-11-difluoroethylmethyl

ether

ND

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-4Client Sample ID Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

22-Dichloropropane ND 264 772 ugSample 112919 1048 120619 2208 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

106 169 ugSample 112919 1048 120619 2208 12-Butanone (MEK) ND

529 783 ugSample 112919 1048 120619 2208 12-chloro-111444-hexafluoro-2-but

ene

ND

529 529 ugSample 112919 1048 120619 2208 12-Chloro-111-Trifluoroethane ND

264 497 ugSample 112919 1048 120619 2208 12-Chlorotoluene ND

106 243 ugSample 112919 1048 120619 2208 12-Hexanone ND

231 231 ugSample 112919 1048 120619 2208 12-MTP as HFPO 636

264 550 ugSample 112919 1048 120619 2208 14-Chlorotoluene ND

264 709 ugSample 112919 1048 120619 2208 14-Isopropyltoluene ND

106 169 ugSample 112919 1048 120619 2208 14-Methyl-2-pentanone (MIBK) ND

106 624 ugSample 112919 1048 120619 2208 1Acetone ND

264 508 ugSample 112919 1048 120619 2208 1Benzene ND

264 370 ugSample 112919 1048 120619 2208 1Bromobenzene ND

264 592 ugSample 112919 1048 120619 2208 1Bromochloromethane ND

264 455 ugSample 112919 1048 120619 2208 1Bromodichloromethane ND

264 804 ugSample 112919 1048 120619 2208 1Bromoform ND

529 307 ugSample 112919 1048 120619 2208 1Bromomethane ND

264 656 ugSample 112919 1048 120619 2208 1Carbon disulfide ND

264 349 ugSample 112919 1048 120619 2208 1Carbon tetrachloride ND

777 777 ugSample 112919 1048 120619 2208 1Carbonyl Difluoride ND

264 381 ugSample 112919 1048 120619 2208 1Chlorobenzene ND

264 571 ugSample 112919 1048 120619 2208 1Chlorodibromomethane ND

529 116 ugSample 112919 1048 120619 2208 1Chloroethane ND

264 307 ugSample 112919 1048 120619 2208 1Chloroform ND

529 220 ugSample 112919 1048 120619 2208 1Chloromethane ND

264 212 ugSample 112919 1048 120619 2208 1cis-12-Dichloroethene ND

264 455 ugSample 112919 1048 120619 2208 1cis-13-Dichloropropene ND

264 254 ugSample 112919 1048 120619 2208 1Dibromomethane ND

529 931 ugSample 112919 1048 120619 2208 1Dichlorodifluoromethane ND

264 434 ugSample 112919 1048 120619 2208 1Ethylbenzene ND

264 264 ugSample 112919 1048 120619 2208 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

264 698 ugSample 112919 1048 120619 2208 1Hexachlorobutadiene ND

253 253 ugSample 112919 1048 120619 2208 1HFPO dimer methyl ester as

HFPO-DA

ND

264 370 ugSample 112919 1048 120619 2208 1Isopropylbenzene ND

529 434 ugSample 112919 1048 120619 2208 1mp-Xylene ND

264 169 ugSample 112919 1048 120619 2208 1Methylene Chloride ND

264 127 ugSample 112919 1048 120619 2208 1Naphthalene ND

264 677 ugSample 112919 1048 120619 2208 1n-Butylbenzene ND

264 571 ugSample 112919 1048 120619 2208 1n-Propylbenzene ND

264 275 ugSample 112919 1048 120619 2208 1o-Xylene ND

264 518 ugSample 112919 1048 120619 2208 1sec-Butylbenzene ND

264 571 ugSample 112919 1048 120619 2208 1Styrene ND

264 465 ugSample 112919 1048 120619 2208 1tert-Butylbenzene ND

264 349 ugSample 112919 1048 120619 2208 1Tetrachloroethene ND

264 487 ugSample 112919 1048 120619 2208 1Toluene ND

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12232019Page 22 of 89473

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-4Client Sample ID Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

trans-12-Dichloroethene ND 264 275 ugSample 112919 1048 120619 2208 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

264 931 ugSample 112919 1048 120619 2208 1trans-13-Dichloropropene ND

264 190 ugSample 112919 1048 120619 2208 1Trichloroethene ND

529 508 ugSample 112919 1048 120619 2208 1Trichlorofluoromethane ND

529 127 ugSample 112919 1048 120619 2208 1Vinyl chloride ND

Unknown 365 T J ugSample 113 112919 1048 120619 2208 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2208112919 1048T JUnknown 452 ugSample 118

1120619 2208112919 1048T J NCyclohexane 110-82-7419 ugSample 442

12-Dichloroethane-d4 (Surr) 120 70 - 160 112919 1048 120619 2208 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 110 112919 1048 120619 2208 157 - 152

Dibromofluoromethane (Surr) 104 112919 1048 120619 2208 162 - 134

Toluene-d8 (Surr) 96 112919 1048 120619 2208 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 22000 5640 2820 ugSample 112919 1048 121219 1510 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2330 1060 ugSample 112919 1048 121719 2051 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-5Client Sample ID Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 241 318 ugSample 112919 1048 120619 2232 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

482 482 ugSample 112919 1048 120619 2232 111133-Pentafluorobutane ND

241 347 ugSample 112919 1048 120619 2232 1111-Trichloroethane ND

482 954 ugSample 112919 1048 120619 2232 1111-Trifluoro-22-dichloroethane ND

482 482 ugSample 112919 1048 120619 2232 1111-Trifluoroethane ND

241 462 ugSample 112919 1048 120619 2232 11122-Tetrachloroethane ND

482 270 ugSample 112919 1048 120619 2232 1112-Trichloro-122-trifluoroethane ND

482 482 ugSample 112919 1048 120619 2232 1112-trichloro-1-fluoroethane ND

241 250 ugSample 112919 1048 120619 2232 1112-Trichloroethane ND

482 241 ugSample 112919 1048 120619 2232 111-Dichloro-1-fluoroethane ND

482 482 ugSample 112919 1048 120619 2232 111-dichloro-22-difluoroethane ND

482 482 ugSample 112919 1048 120619 2232 111-dichloro-22-difluoroethene ND

241 289 ugSample 112919 1048 120619 2232 111-Dichloroethane ND

241 356 ugSample 112919 1048 120619 2232 111-Dichloroethene ND

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ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-5Client Sample ID Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

11-Dichloropropene ND 241 260 ugSample 112919 1048 120619 2232 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

482 482 ugSample 112919 1048 120619 2232 111-Difluoroethene ND

482 482 ugSample 112919 1048 120619 2232 1122-trichloro-11-difluoroethane ND

241 771 ugSample 112919 1048 120619 2232 1123-Trichlorobenzene ND

241 597 ugSample 112919 1048 120619 2232 1123-Trichloropropane ND

241 809 ugSample 112919 1048 120619 2232 1124-Trichlorobenzene ND

241 501 ugSample 112919 1048 120619 2232 1124-Trimethylbenzene ND

482 848 ugSample 112919 1048 120619 2232 112-Dibromo-3-Chloropropane ND

241 318 ugSample 112919 1048 120619 2232 112-Dibromoethane (EDB) ND

482 482 ugSample 112919 1048 120619 2232 112-dichloro-11-difluoroethane ND

241 424 ugSample 112919 1048 120619 2232 112-Dichlorobenzene ND

241 405 ugSample 112919 1048 120619 2232 112-Dichloroethane ND

241 241 ugSample 112919 1048 120619 2232 112-Dichloropropane ND

241 501 ugSample 112919 1048 120619 2232 1135-Trimethylbenzene ND

241 414 ugSample 112919 1048 120619 2232 113-Dichlorobenzene ND

241 270 ugSample 112919 1048 120619 2232 113-Dichloropropane ND

241 482 ugSample 112919 1048 120619 2232 114-Dichlorobenzene ND

482 491 ugSample 112919 1048 120619 2232 11-Chloro-11-difluoroethane ND

482 482 ugSample 112919 1048 120619 2232 122-dichloro-11-difluoroethylmethyl

ether

ND

241 703 ugSample 112919 1048 120619 2232 122-Dichloropropane ND

963 154 ugSample 112919 1048 120619 2232 12-Butanone (MEK) ND

482 713 ugSample 112919 1048 120619 2232 12-chloro-111444-hexafluoro-2-but

ene

ND

482 482 ugSample 112919 1048 120619 2232 12-Chloro-111-Trifluoroethane ND

241 453 ugSample 112919 1048 120619 2232 12-Chlorotoluene ND

963 222 ugSample 112919 1048 120619 2232 12-Hexanone ND

210 210 ugSample 112919 1048 120619 2232 12-MTP as HFPO 490

241 501 ugSample 112919 1048 120619 2232 14-Chlorotoluene ND

241 645 ugSample 112919 1048 120619 2232 14-Isopropyltoluene ND

963 154 ugSample 112919 1048 120619 2232 14-Methyl-2-pentanone (MIBK) ND

963 568 ugSample 112919 1048 120619 2232 1Acetone ND

241 462 ugSample 112919 1048 120619 2232 1Benzene ND

241 337 ugSample 112919 1048 120619 2232 1Bromobenzene ND

241 540 ugSample 112919 1048 120619 2232 1Bromochloromethane ND

241 414 ugSample 112919 1048 120619 2232 1Bromodichloromethane ND

241 732 ugSample 112919 1048 120619 2232 1Bromoform ND

482 279 ugSample 112919 1048 120619 2232 1Bromomethane ND

241 597 ugSample 112919 1048 120619 2232 1Carbon disulfide ND

241 318 ugSample 112919 1048 120619 2232 1Carbon tetrachloride ND

706 706 ugSample 112919 1048 120619 2232 1Carbonyl Difluoride ND

241 347 ugSample 112919 1048 120619 2232 1Chlorobenzene ND

241 520 ugSample 112919 1048 120619 2232 1Chlorodibromomethane ND

482 106 ugSample 112919 1048 120619 2232 1Chloroethane ND

241 279 ugSample 112919 1048 120619 2232 1Chloroform ND

482 200 ugSample 112919 1048 120619 2232 1Chloromethane ND

241 193 ugSample 112919 1048 120619 2232 1cis-12-Dichloroethene ND

241 414 ugSample 112919 1048 120619 2232 1cis-13-Dichloropropene ND

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-5Client Sample ID Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Dibromomethane ND 241 231 ugSample 112919 1048 120619 2232 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

482 848 ugSample 112919 1048 120619 2232 1Dichlorodifluoromethane ND

241 395 ugSample 112919 1048 120619 2232 1Ethylbenzene ND

241 241 ugSample 112919 1048 120619 2232 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

241 636 ugSample 112919 1048 120619 2232 1Hexachlorobutadiene ND

231 231 ugSample 112919 1048 120619 2232 1HFPO dimer methyl ester as

HFPO-DA

ND

241 337 ugSample 112919 1048 120619 2232 1Isopropylbenzene ND

482 395 ugSample 112919 1048 120619 2232 1mp-Xylene ND

241 154 ugSample 112919 1048 120619 2232 1Methylene Chloride ND

241 116 ugSample 112919 1048 120619 2232 1Naphthalene ND

241 617 ugSample 112919 1048 120619 2232 1n-Butylbenzene ND

241 520 ugSample 112919 1048 120619 2232 1n-Propylbenzene ND

241 250 ugSample 112919 1048 120619 2232 1o-Xylene ND

241 472 ugSample 112919 1048 120619 2232 1sec-Butylbenzene ND

241 520 ugSample 112919 1048 120619 2232 1Styrene ND

241 424 ugSample 112919 1048 120619 2232 1tert-Butylbenzene ND

241 318 ugSample 112919 1048 120619 2232 1Tetrachloroethene ND

241 443 ugSample 112919 1048 120619 2232 1Toluene ND

241 250 ugSample 112919 1048 120619 2232 1trans-12-Dichloroethene ND

241 848 ugSample 112919 1048 120619 2232 1trans-13-Dichloropropene ND

241 173 ugSample 112919 1048 120619 2232 1Trichloroethene ND

482 462 ugSample 112919 1048 120619 2232 1Trichlorofluoromethane ND

482 116 ugSample 112919 1048 120619 2232 1Vinyl chloride ND

Unknown 223 T J ugSample 113 112919 1048 120619 2232 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2232112919 1048T J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-8104 ugSample 118

1120619 2232112919 1048T J NCyclohexane 110-82-7410 ugSample 442

1120619 2232112919 1048T JUnknown 309 ugSample 1317

12-Dichloroethane-d4 (Surr) 121 70 - 160 112919 1048 120619 2232 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1048 120619 2232 157 - 152

Dibromofluoromethane (Surr) 106 112919 1048 120619 2232 162 - 134

Toluene-d8 (Surr) 95 112919 1048 120619 2232 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 4360 J 5140 2570 ugSample 112919 1048 121119 2330 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2120 963 ugSample 112919 1048 121719 2114 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-6Client Sample ID Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 313 413 ugSample 112919 1048 120619 2257 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

627 627 ugSample 112919 1048 120619 2257 111133-Pentafluorobutane ND

313 451 ugSample 112919 1048 120619 2257 1111-Trichloroethane ND

627 124 ugSample 112919 1048 120619 2257 1111-Trifluoro-22-dichloroethane ND

627 627 ugSample 112919 1048 120619 2257 1111-Trifluoroethane ND

313 601 ugSample 112919 1048 120619 2257 11122-Tetrachloroethane ND

627 351 ugSample 112919 1048 120619 2257 1112-Trichloro-122-trifluoroethane ND

627 627 ugSample 112919 1048 120619 2257 1112-trichloro-1-fluoroethane ND

313 326 ugSample 112919 1048 120619 2257 1112-Trichloroethane ND

627 313 ugSample 112919 1048 120619 2257 111-Dichloro-1-fluoroethane ND

627 627 ugSample 112919 1048 120619 2257 111-dichloro-22-difluoroethane ND

627 627 ugSample 112919 1048 120619 2257 111-dichloro-22-difluoroethene ND

313 376 ugSample 112919 1048 120619 2257 111-Dichloroethane ND

313 464 ugSample 112919 1048 120619 2257 111-Dichloroethene ND

313 338 ugSample 112919 1048 120619 2257 111-Dichloropropene ND

627 627 ugSample 112919 1048 120619 2257 111-Difluoroethene ND

627 627 ugSample 112919 1048 120619 2257 1122-trichloro-11-difluoroethane ND

313 100 ugSample 112919 1048 120619 2257 1123-Trichlorobenzene ND

313 777 ugSample 112919 1048 120619 2257 1123-Trichloropropane ND

313 105 ugSample 112919 1048 120619 2257 1124-Trichlorobenzene ND

313 652 ugSample 112919 1048 120619 2257 1124-Trimethylbenzene ND

627 110 ugSample 112919 1048 120619 2257 112-Dibromo-3-Chloropropane ND

313 413 ugSample 112919 1048 120619 2257 112-Dibromoethane (EDB) ND

627 627 ugSample 112919 1048 120619 2257 112-dichloro-11-difluoroethane ND

313 551 ugSample 112919 1048 120619 2257 112-Dichlorobenzene ND

313 526 ugSample 112919 1048 120619 2257 112-Dichloroethane ND

313 313 ugSample 112919 1048 120619 2257 112-Dichloropropane ND

313 652 ugSample 112919 1048 120619 2257 1135-Trimethylbenzene ND

313 539 ugSample 112919 1048 120619 2257 113-Dichlorobenzene ND

313 351 ugSample 112919 1048 120619 2257 113-Dichloropropane ND

313 627 ugSample 112919 1048 120619 2257 114-Dichlorobenzene ND

627 639 ugSample 112919 1048 120619 2257 11-Chloro-11-difluoroethane ND

627 627 ugSample 112919 1048 120619 2257 122-dichloro-11-difluoroethylmethyl

ether

ND

313 915 ugSample 112919 1048 120619 2257 122-Dichloropropane ND

125 200 ugSample 112919 1048 120619 2257 12-Butanone (MEK) ND

627 927 ugSample 112919 1048 120619 2257 12-chloro-111444-hexafluoro-2-but

ene

ND

627 627 ugSample 112919 1048 120619 2257 12-Chloro-111-Trifluoroethane ND

313 589 ugSample 112919 1048 120619 2257 12-Chlorotoluene ND

125 288 ugSample 112919 1048 120619 2257 12-Hexanone ND

273 273 ugSample 112919 1048 120619 2257 12-MTP as HFPO 672

313 652 ugSample 112919 1048 120619 2257 14-Chlorotoluene ND

313 840 ugSample 112919 1048 120619 2257 14-Isopropyltoluene ND

125 200 ugSample 112919 1048 120619 2257 14-Methyl-2-pentanone (MIBK) ND

125 739 ugSample 112919 1048 120619 2257 1Acetone ND

313 601 ugSample 112919 1048 120619 2257 1Benzene ND

313 439 ugSample 112919 1048 120619 2257 1Bromobenzene ND

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ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-6Client Sample ID Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromochloromethane ND 313 702 ugSample 112919 1048 120619 2257 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

313 539 ugSample 112919 1048 120619 2257 1Bromodichloromethane ND

313 952 ugSample 112919 1048 120619 2257 1Bromoform ND

627 363 ugSample 112919 1048 120619 2257 1Bromomethane ND

313 777 ugSample 112919 1048 120619 2257 1Carbon disulfide ND

313 413 ugSample 112919 1048 120619 2257 1Carbon tetrachloride ND

916 916 ugSample 112919 1048 120619 2257 1Carbonyl Difluoride ND

313 451 ugSample 112919 1048 120619 2257 1Chlorobenzene ND

313 677 ugSample 112919 1048 120619 2257 1Chlorodibromomethane ND

627 138 ugSample 112919 1048 120619 2257 1Chloroethane ND

313 363 ugSample 112919 1048 120619 2257 1Chloroform ND

627 261 ugSample 112919 1048 120619 2257 1Chloromethane ND

313 251 ugSample 112919 1048 120619 2257 1cis-12-Dichloroethene ND

313 539 ugSample 112919 1048 120619 2257 1cis-13-Dichloropropene ND

313 301 ugSample 112919 1048 120619 2257 1Dibromomethane ND

627 110 ugSample 112919 1048 120619 2257 1Dichlorodifluoromethane ND

313 514 ugSample 112919 1048 120619 2257 1Ethylbenzene ND

313 313 ugSample 112919 1048 120619 2257 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

313 827 ugSample 112919 1048 120619 2257 1Hexachlorobutadiene ND

300 300 ugSample 112919 1048 120619 2257 1HFPO dimer methyl ester as

HFPO-DA

ND

313 439 ugSample 112919 1048 120619 2257 1Isopropylbenzene ND

627 514 ugSample 112919 1048 120619 2257 1mp-Xylene ND

313 200 ugSample 112919 1048 120619 2257 1Methylene Chloride ND

313 150 ugSample 112919 1048 120619 2257 1Naphthalene ND

313 802 ugSample 112919 1048 120619 2257 1n-Butylbenzene ND

313 677 ugSample 112919 1048 120619 2257 1n-Propylbenzene ND

313 326 ugSample 112919 1048 120619 2257 1o-Xylene ND

313 614 ugSample 112919 1048 120619 2257 1sec-Butylbenzene ND

313 677 ugSample 112919 1048 120619 2257 1Styrene ND

313 551 ugSample 112919 1048 120619 2257 1tert-Butylbenzene ND

313 413 ugSample 112919 1048 120619 2257 1Tetrachloroethene ND

313 576 ugSample 112919 1048 120619 2257 1Toluene ND

313 326 ugSample 112919 1048 120619 2257 1trans-12-Dichloroethene ND

313 110 ugSample 112919 1048 120619 2257 1trans-13-Dichloropropene ND

313 226 ugSample 112919 1048 120619 2257 1Trichloroethene ND

627 601 ugSample 112919 1048 120619 2257 1Trichlorofluoromethane ND

627 150 ugSample 112919 1048 120619 2257 1Vinyl chloride ND

Unknown 273 T J ugSample 113 112919 1048 120619 2257 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2257112919 1048T J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-8160 ugSample 118

12-Dichloroethane-d4 (Surr) 118 70 - 160 112919 1048 120619 2257 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 108 112919 1048 120619 2257 157 - 152

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12232019Page 27 of 89478

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-6Client Sample ID Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)

Dibromofluoromethane (Surr) 105 62 - 134 112919 1048 120619 2257 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Toluene-d8 (Surr) 97 112919 1048 120619 2257 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 3970 J 6680 3340 ugSample 112919 1048 121119 2350 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2760 1250 ugSample 112919 1048 121719 2137 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-7Client Sample ID Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 302 399 ugSample 112919 1048 120619 2321 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

604 604 ugSample 112919 1048 120619 2321 111133-Pentafluorobutane ND

302 435 ugSample 112919 1048 120619 2321 1111-Trichloroethane ND

604 120 ugSample 112919 1048 120619 2321 1111-Trifluoro-22-dichloroethane ND

604 604 ugSample 112919 1048 120619 2321 1111-Trifluoroethane ND

302 580 ugSample 112919 1048 120619 2321 11122-Tetrachloroethane ND

604 338 ugSample 112919 1048 120619 2321 1112-Trichloro-122-trifluoroethane ND

604 604 ugSample 112919 1048 120619 2321 1112-trichloro-1-fluoroethane ND

302 314 ugSample 112919 1048 120619 2321 1112-Trichloroethane ND

604 302 ugSample 112919 1048 120619 2321 111-Dichloro-1-fluoroethane ND

604 604 ugSample 112919 1048 120619 2321 111-dichloro-22-difluoroethane ND

604 604 ugSample 112919 1048 120619 2321 111-dichloro-22-difluoroethene ND

302 362 ugSample 112919 1048 120619 2321 111-Dichloroethane ND

302 447 ugSample 112919 1048 120619 2321 111-Dichloroethene ND

302 326 ugSample 112919 1048 120619 2321 111-Dichloropropene ND

604 604 ugSample 112919 1048 120619 2321 111-Difluoroethene ND

604 604 ugSample 112919 1048 120619 2321 1122-trichloro-11-difluoroethane ND

302 967 ugSample 112919 1048 120619 2321 1123-Trichlorobenzene ND

302 749 ugSample 112919 1048 120619 2321 1123-Trichloropropane ND

302 101 ugSample 112919 1048 120619 2321 1124-Trichlorobenzene ND

302 628 ugSample 112919 1048 120619 2321 1124-Trimethylbenzene ND

604 106 ugSample 112919 1048 120619 2321 112-Dibromo-3-Chloropropane ND

302 399 ugSample 112919 1048 120619 2321 112-Dibromoethane (EDB) ND

604 604 ugSample 112919 1048 120619 2321 112-dichloro-11-difluoroethane ND

302 532 ugSample 112919 1048 120619 2321 112-Dichlorobenzene ND

302 507 ugSample 112919 1048 120619 2321 112-Dichloroethane ND

302 302 ugSample 112919 1048 120619 2321 112-Dichloropropane ND

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12232019Page 28 of 89479

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-7Client Sample ID Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

135-Trimethylbenzene ND 302 628 ugSample 112919 1048 120619 2321 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

302 520 ugSample 112919 1048 120619 2321 113-Dichlorobenzene ND

302 338 ugSample 112919 1048 120619 2321 113-Dichloropropane ND

302 604 ugSample 112919 1048 120619 2321 114-Dichlorobenzene ND

604 616 ugSample 112919 1048 120619 2321 11-Chloro-11-difluoroethane ND

604 604 ugSample 112919 1048 120619 2321 122-dichloro-11-difluoroethylmethyl

ether

ND

302 882 ugSample 112919 1048 120619 2321 122-Dichloropropane ND

121 193 ugSample 112919 1048 120619 2321 12-Butanone (MEK) ND

604 894 ugSample 112919 1048 120619 2321 12-chloro-111444-hexafluoro-2-but

ene

ND

604 604 ugSample 112919 1048 120619 2321 12-Chloro-111-Trifluoroethane ND

302 568 ugSample 112919 1048 120619 2321 12-Chlorotoluene ND

121 278 ugSample 112919 1048 120619 2321 12-Hexanone ND

264 264 ugSample 112919 1048 120619 2321 12-MTP as HFPO 467

302 628 ugSample 112919 1048 120619 2321 14-Chlorotoluene ND

302 809 ugSample 112919 1048 120619 2321 14-Isopropyltoluene ND

121 193 ugSample 112919 1048 120619 2321 14-Methyl-2-pentanone (MIBK) ND

121 713 ugSample 112919 1048 120619 2321 1Acetone ND

302 580 ugSample 112919 1048 120619 2321 1Benzene ND

302 423 ugSample 112919 1048 120619 2321 1Bromobenzene ND

302 677 ugSample 112919 1048 120619 2321 1Bromochloromethane ND

302 520 ugSample 112919 1048 120619 2321 1Bromodichloromethane ND

302 918 ugSample 112919 1048 120619 2321 1Bromoform ND

604 350 ugSample 112919 1048 120619 2321 1Bromomethane ND

302 749 ugSample 112919 1048 120619 2321 1Carbon disulfide ND

302 399 ugSample 112919 1048 120619 2321 1Carbon tetrachloride ND

887 887 ugSample 112919 1048 120619 2321 1Carbonyl Difluoride ND

302 435 ugSample 112919 1048 120619 2321 1Chlorobenzene ND

302 652 ugSample 112919 1048 120619 2321 1Chlorodibromomethane ND

604 133 ugSample 112919 1048 120619 2321 1Chloroethane ND

302 350 ugSample 112919 1048 120619 2321 1Chloroform ND

604 251 ugSample 112919 1048 120619 2321 1Chloromethane ND

302 242 ugSample 112919 1048 120619 2321 1cis-12-Dichloroethene ND

302 520 ugSample 112919 1048 120619 2321 1cis-13-Dichloropropene ND

302 290 ugSample 112919 1048 120619 2321 1Dibromomethane ND

604 106 ugSample 112919 1048 120619 2321 1Dichlorodifluoromethane ND

302 495 ugSample 112919 1048 120619 2321 1Ethylbenzene ND

302 302 ugSample 112919 1048 120619 2321 1Heptafluoropropyl 1222-tetrafluoroethyl ether

550

302 797 ugSample 112919 1048 120619 2321 1Hexachlorobutadiene ND

290 290 ugSample 112919 1048 120619 2321 1HFPO dimer methyl ester as

HFPO-DA

ND

302 423 ugSample 112919 1048 120619 2321 1Isopropylbenzene ND

604 495 ugSample 112919 1048 120619 2321 1mp-Xylene ND

302 193 ugSample 112919 1048 120619 2321 1Methylene Chloride 116

302 145 ugSample 112919 1048 120619 2321 1Naphthalene ND

302 773 ugSample 112919 1048 120619 2321 1n-Butylbenzene ND

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-7Client Sample ID Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

n-Propylbenzene ND 302 652 ugSample 112919 1048 120619 2321 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

302 314 ugSample 112919 1048 120619 2321 1o-Xylene ND

302 592 ugSample 112919 1048 120619 2321 1sec-Butylbenzene ND

302 652 ugSample 112919 1048 120619 2321 1Styrene ND

302 532 ugSample 112919 1048 120619 2321 1tert-Butylbenzene ND

302 399 ugSample 112919 1048 120619 2321 1Tetrachloroethene ND

302 556 ugSample 112919 1048 120619 2321 1Toluene ND

302 314 ugSample 112919 1048 120619 2321 1trans-12-Dichloroethene ND

302 106 ugSample 112919 1048 120619 2321 1trans-13-Dichloropropene ND

302 217 ugSample 112919 1048 120619 2321 1Trichloroethene ND

604 580 ugSample 112919 1048 120619 2321 1Trichlorofluoromethane ND

604 145 ugSample 112919 1048 120619 2321 1Vinyl chloride ND

Unknown 275 T J ugSample 113 112919 1048 120619 2321 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2321112919 1048T JUnknown 2960 ugSample 118

1120619 2321112919 1048T JUnknown 572 ugSample 122

1120619 2321112919 1048T JUnknown 229 ugSample 212

1120619 2321112919 1048T JUnknown 104 ugSample 250

1120619 2321112919 1048T J NCyclohexane 110-82-7363 ugSample 442

12-Dichloroethane-d4 (Surr) 118 70 - 160 112919 1048 120619 2321 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1048 120619 2321 157 - 152

Dibromofluoromethane (Surr) 105 112919 1048 120619 2321 162 - 134

Toluene-d8 (Surr) 96 112919 1048 120619 2321 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 6490 6440 3220 ugSample 112919 1048 121219 0011 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2660 1210 ugSample 112919 1048 121819 0946 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-8Client Sample ID Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 296 390 ugSample 112919 1048 120619 2346 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

591 591 ugSample 112919 1048 120619 2346 111133-Pentafluorobutane ND

296 426 ugSample 112919 1048 120619 2346 1111-Trichloroethane ND

591 117 ugSample 112919 1048 120619 2346 1111-Trifluoro-22-dichloroethane ND

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-8Client Sample ID Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

111-Trifluoroethane ND 591 591 ugSample 112919 1048 120619 2346 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

296 567 ugSample 112919 1048 120619 2346 11122-Tetrachloroethane ND

591 331 ugSample 112919 1048 120619 2346 1112-Trichloro-122-trifluoroethane ND

591 591 ugSample 112919 1048 120619 2346 1112-trichloro-1-fluoroethane ND

296 307 ugSample 112919 1048 120619 2346 1112-Trichloroethane ND

591 296 ugSample 112919 1048 120619 2346 111-Dichloro-1-fluoroethane ND

591 591 ugSample 112919 1048 120619 2346 111-dichloro-22-difluoroethane ND

591 591 ugSample 112919 1048 120619 2346 111-dichloro-22-difluoroethene ND

296 355 ugSample 112919 1048 120619 2346 111-Dichloroethane ND

296 437 ugSample 112919 1048 120619 2346 111-Dichloroethene ND

296 319 ugSample 112919 1048 120619 2346 111-Dichloropropene ND

591 591 ugSample 112919 1048 120619 2346 111-Difluoroethene ND

591 591 ugSample 112919 1048 120619 2346 1122-trichloro-11-difluoroethane ND

296 946 ugSample 112919 1048 120619 2346 1123-Trichlorobenzene ND

296 733 ugSample 112919 1048 120619 2346 1123-Trichloropropane ND

296 993 ugSample 112919 1048 120619 2346 1124-Trichlorobenzene ND

296 615 ugSample 112919 1048 120619 2346 1124-Trimethylbenzene ND

591 104 ugSample 112919 1048 120619 2346 112-Dibromo-3-Chloropropane ND

296 390 ugSample 112919 1048 120619 2346 112-Dibromoethane (EDB) ND

591 591 ugSample 112919 1048 120619 2346 112-dichloro-11-difluoroethane ND

296 520 ugSample 112919 1048 120619 2346 112-Dichlorobenzene ND

296 496 ugSample 112919 1048 120619 2346 112-Dichloroethane ND

296 296 ugSample 112919 1048 120619 2346 112-Dichloropropane ND

296 615 ugSample 112919 1048 120619 2346 1135-Trimethylbenzene ND

296 508 ugSample 112919 1048 120619 2346 113-Dichlorobenzene ND

296 331 ugSample 112919 1048 120619 2346 113-Dichloropropane ND

296 591 ugSample 112919 1048 120619 2346 114-Dichlorobenzene ND

591 603 ugSample 112919 1048 120619 2346 11-Chloro-11-difluoroethane ND

591 591 ugSample 112919 1048 120619 2346 122-dichloro-11-difluoroethylmethyl

ether

ND

296 863 ugSample 112919 1048 120619 2346 122-Dichloropropane ND

118 189 ugSample 112919 1048 120619 2346 12-Butanone (MEK) ND

591 875 ugSample 112919 1048 120619 2346 12-chloro-111444-hexafluoro-2-but

ene

ND

591 591 ugSample 112919 1048 120619 2346 12-Chloro-111-Trifluoroethane ND

296 556 ugSample 112919 1048 120619 2346 12-Chlorotoluene ND

118 272 ugSample 112919 1048 120619 2346 12-Hexanone ND

259 259 ugSample 112919 1048 120619 2346 12-MTP as HFPO 610

296 615 ugSample 112919 1048 120619 2346 14-Chlorotoluene ND

296 792 ugSample 112919 1048 120619 2346 14-Isopropyltoluene ND

118 189 ugSample 112919 1048 120619 2346 14-Methyl-2-pentanone (MIBK) ND

118 697 ugSample 112919 1048 120619 2346 1Acetone ND

296 567 ugSample 112919 1048 120619 2346 1Benzene ND

296 414 ugSample 112919 1048 120619 2346 1Bromobenzene ND

296 662 ugSample 112919 1048 120619 2346 1Bromochloromethane ND

296 508 ugSample 112919 1048 120619 2346 1Bromodichloromethane ND

296 898 ugSample 112919 1048 120619 2346 1Bromoform ND

591 343 ugSample 112919 1048 120619 2346 1Bromomethane ND

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-8Client Sample ID Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Carbon disulfide ND 296 733 ugSample 112919 1048 120619 2346 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

296 390 ugSample 112919 1048 120619 2346 1Carbon tetrachloride ND

865 865 ugSample 112919 1048 120619 2346 1Carbonyl Difluoride ND

296 426 ugSample 112919 1048 120619 2346 1Chlorobenzene ND

296 638 ugSample 112919 1048 120619 2346 1Chlorodibromomethane ND

591 130 ugSample 112919 1048 120619 2346 1Chloroethane ND

296 343 ugSample 112919 1048 120619 2346 1Chloroform ND

591 246 ugSample 112919 1048 120619 2346 1Chloromethane ND

296 236 ugSample 112919 1048 120619 2346 1cis-12-Dichloroethene ND

296 508 ugSample 112919 1048 120619 2346 1cis-13-Dichloropropene ND

296 284 ugSample 112919 1048 120619 2346 1Dibromomethane ND

591 104 ugSample 112919 1048 120619 2346 1Dichlorodifluoromethane ND

296 485 ugSample 112919 1048 120619 2346 1Ethylbenzene ND

296 296 ugSample 112919 1048 120619 2346 1Heptafluoropropyl 1222-tetrafluoroethyl ether

193

296 780 ugSample 112919 1048 120619 2346 1Hexachlorobutadiene ND

284 284 ugSample 112919 1048 120619 2346 1HFPO dimer methyl ester as

HFPO-DA

ND

296 414 ugSample 112919 1048 120619 2346 1Isopropylbenzene ND

591 485 ugSample 112919 1048 120619 2346 1mp-Xylene ND

296 189 ugSample 112919 1048 120619 2346 1Methylene Chloride ND

296 142 ugSample 112919 1048 120619 2346 1Naphthalene ND

296 757 ugSample 112919 1048 120619 2346 1n-Butylbenzene ND

296 638 ugSample 112919 1048 120619 2346 1n-Propylbenzene ND

296 307 ugSample 112919 1048 120619 2346 1o-Xylene ND

296 579 ugSample 112919 1048 120619 2346 1sec-Butylbenzene ND

296 638 ugSample 112919 1048 120619 2346 1Styrene ND

296 520 ugSample 112919 1048 120619 2346 1tert-Butylbenzene ND

296 390 ugSample 112919 1048 120619 2346 1Tetrachloroethene ND

296 544 ugSample 112919 1048 120619 2346 1Toluene ND

296 307 ugSample 112919 1048 120619 2346 1trans-12-Dichloroethene ND

296 104 ugSample 112919 1048 120619 2346 1trans-13-Dichloropropene ND

296 213 ugSample 112919 1048 120619 2346 1Trichloroethene ND

591 567 ugSample 112919 1048 120619 2346 1Trichlorofluoromethane ND

591 142 ugSample 112919 1048 120619 2346 1Vinyl chloride ND

Unknown 341 T J ugSample 113 112919 1048 120619 2346 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2346112919 1048T JUnknown 2160 ugSample 119

1120619 2346112919 1048T J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-8497 ugSample 122

1120619 2346112919 1048T J NCyclohexane 110-82-7397 ugSample 442

1120619 2346112919 1048T J NCyclotetrasiloxane octamethyl- 556-67-2316 ugSample 878

1120619 2346112919 1048T J NSalicylic acid 2TMS derivative 3789-85-3307 ugSample 1136

1120619 2346112919 1048T JUnknown 563 ugSample 1317

12-Dichloroethane-d4 (Surr) 115 70 - 160 112919 1048 120619 2346 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-8Client Sample ID Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)

4-Bromofluorobenzene (Surr) 110 57 - 152 112919 1048 120619 2346 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Dibromofluoromethane (Surr) 104 112919 1048 120619 2346 162 - 134

Toluene-d8 (Surr) 97 112919 1048 120619 2346 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 24300 6380 3190 ugSample 112919 1048 121319 1843 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2600 1180 ugSample 112919 1048 121819 1009 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-9Client Sample ID Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND H 308 406 ugSample 112919 1048 120719 0010 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

615 615 ugSample 112919 1048 120719 0010 111133-Pentafluorobutane ND H

308 443 ugSample 112919 1048 120719 0010 1111-Trichloroethane ND H

615 122 ugSample 112919 1048 120719 0010 1111-Trifluoro-22-dichloroethane ND H

615 615 ugSample 112919 1048 120719 0010 1111-Trifluoroethane ND H

308 591 ugSample 112919 1048 120719 0010 11122-Tetrachloroethane ND H

615 345 ugSample 112919 1048 120719 0010 1112-Trichloro-122-trifluoroethane ND H

615 615 ugSample 112919 1048 120719 0010 1112-trichloro-1-fluoroethane ND H

308 320 ugSample 112919 1048 120719 0010 1112-Trichloroethane ND H

615 308 ugSample 112919 1048 120719 0010 111-Dichloro-1-fluoroethane ND H

615 615 ugSample 112919 1048 120719 0010 111-dichloro-22-difluoroethane ND H

615 615 ugSample 112919 1048 120719 0010 111-dichloro-22-difluoroethene ND H

308 369 ugSample 112919 1048 120719 0010 111-Dichloroethane ND H

308 455 ugSample 112919 1048 120719 0010 111-Dichloroethene ND H

308 332 ugSample 112919 1048 120719 0010 111-Dichloropropene ND H

615 615 ugSample 112919 1048 120719 0010 111-Difluoroethene ND H

615 615 ugSample 112919 1048 120719 0010 1122-trichloro-11-difluoroethane ND H

308 985 ugSample 112919 1048 120719 0010 1123-Trichlorobenzene ND H

308 763 ugSample 112919 1048 120719 0010 1123-Trichloropropane ND H

308 103 ugSample 112919 1048 120719 0010 1124-Trichlorobenzene ND H

308 640 ugSample 112919 1048 120719 0010 1124-Trimethylbenzene ND H

615 108 ugSample 112919 1048 120719 0010 112-Dibromo-3-Chloropropane ND H

308 406 ugSample 112919 1048 120719 0010 112-Dibromoethane (EDB) ND H

615 615 ugSample 112919 1048 120719 0010 112-dichloro-11-difluoroethane ND H

308 542 ugSample 112919 1048 120719 0010 112-Dichlorobenzene ND H

308 517 ugSample 112919 1048 120719 0010 112-Dichloroethane ND H

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-9Client Sample ID Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

12-Dichloropropane ND H 308 308 ugSample 112919 1048 120719 0010 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

308 640 ugSample 112919 1048 120719 0010 1135-Trimethylbenzene ND H

308 529 ugSample 112919 1048 120719 0010 113-Dichlorobenzene ND H

308 345 ugSample 112919 1048 120719 0010 113-Dichloropropane ND H

308 615 ugSample 112919 1048 120719 0010 114-Dichlorobenzene ND H

615 628 ugSample 112919 1048 120719 0010 11-Chloro-11-difluoroethane ND H

615 615 ugSample 112919 1048 120719 0010 122-dichloro-11-difluoroethylmethyl

ether

ND H

308 898 ugSample 112919 1048 120719 0010 122-Dichloropropane ND H

123 197 ugSample 112919 1048 120719 0010 12-Butanone (MEK) ND H

615 911 ugSample 112919 1048 120719 0010 12-chloro-111444-hexafluoro-2-but

ene

ND H

615 615 ugSample 112919 1048 120719 0010 12-Chloro-111-Trifluoroethane ND H

308 578 ugSample 112919 1048 120719 0010 12-Chlorotoluene ND H

123 283 ugSample 112919 1048 120719 0010 12-Hexanone ND H

269 269 ugSample 112919 1048 120719 0010 12-MTP as HFPO 609 H

308 640 ugSample 112919 1048 120719 0010 14-Chlorotoluene ND H

308 825 ugSample 112919 1048 120719 0010 14-Isopropyltoluene ND H

123 197 ugSample 112919 1048 120719 0010 14-Methyl-2-pentanone (MIBK) ND H

123 726 ugSample 112919 1048 120719 0010 1Acetone ND H

308 591 ugSample 112919 1048 120719 0010 1Benzene ND H

308 431 ugSample 112919 1048 120719 0010 1Bromobenzene ND H

308 689 ugSample 112919 1048 120719 0010 1Bromochloromethane ND H

308 529 ugSample 112919 1048 120719 0010 1Bromodichloromethane ND H

308 935 ugSample 112919 1048 120719 0010 1Bromoform ND H

615 357 ugSample 112919 1048 120719 0010 1Bromomethane ND H

308 763 ugSample 112919 1048 120719 0010 1Carbon disulfide ND H

308 406 ugSample 112919 1048 120719 0010 1Carbon tetrachloride ND H

901 901 ugSample 112919 1048 120719 0010 1Carbonyl Difluoride ND H

308 443 ugSample 112919 1048 120719 0010 1Chlorobenzene ND H

308 665 ugSample 112919 1048 120719 0010 1Chlorodibromomethane ND H

615 135 ugSample 112919 1048 120719 0010 1Chloroethane ND H

308 357 ugSample 112919 1048 120719 0010 1Chloroform ND H

615 256 ugSample 112919 1048 120719 0010 1Chloromethane ND H

308 246 ugSample 112919 1048 120719 0010 1cis-12-Dichloroethene ND H

308 529 ugSample 112919 1048 120719 0010 1cis-13-Dichloropropene ND H

308 295 ugSample 112919 1048 120719 0010 1Dibromomethane ND H

615 108 ugSample 112919 1048 120719 0010 1Dichlorodifluoromethane ND H

308 505 ugSample 112919 1048 120719 0010 1Ethylbenzene ND H

308 308 ugSample 112919 1048 120719 0010 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND H

308 812 ugSample 112919 1048 120719 0010 1Hexachlorobutadiene ND H

295 295 ugSample 112919 1048 120719 0010 1HFPO dimer methyl ester as

HFPO-DA

ND H

308 431 ugSample 112919 1048 120719 0010 1Isopropylbenzene ND H

615 505 ugSample 112919 1048 120719 0010 1mp-Xylene ND H

308 197 ugSample 112919 1048 120719 0010 1Methylene Chloride ND H

308 148 ugSample 112919 1048 120719 0010 1Naphthalene ND H

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-9Client Sample ID Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

n-Butylbenzene ND H 308 788 ugSample 112919 1048 120719 0010 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

308 665 ugSample 112919 1048 120719 0010 1n-Propylbenzene ND H

308 320 ugSample 112919 1048 120719 0010 1o-Xylene ND H

308 603 ugSample 112919 1048 120719 0010 1sec-Butylbenzene ND H

308 665 ugSample 112919 1048 120719 0010 1Styrene ND H

308 542 ugSample 112919 1048 120719 0010 1tert-Butylbenzene ND H

308 406 ugSample 112919 1048 120719 0010 1Tetrachloroethene ND H

308 566 ugSample 112919 1048 120719 0010 1Toluene ND H

308 320 ugSample 112919 1048 120719 0010 1trans-12-Dichloroethene ND H

308 108 ugSample 112919 1048 120719 0010 1trans-13-Dichloropropene ND H

308 222 ugSample 112919 1048 120719 0010 1Trichloroethene ND H

615 591 ugSample 112919 1048 120719 0010 1Trichlorofluoromethane ND H

615 148 ugSample 112919 1048 120719 0010 1Vinyl chloride ND H

Unknown 490 T H J ugSample 113 112919 1048 120719 0010 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120719 0010112919 1048T H J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-82290 ugSample 118

1120719 0010112919 1048T H J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-8410 ugSample 122

1120719 0010112919 1048T H J NCyclohexane 110-82-7426 ugSample 442

12-Dichloroethane-d4 (Surr) 118 70 - 160 112919 1048 120719 0010 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1048 120719 0010 157 - 152

Dibromofluoromethane (Surr) 104 112919 1048 120719 0010 162 - 134

Toluene-d8 (Surr) 97 112919 1048 120719 0010 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 3770 J 6560 3280 ugSample 112919 1048 121319 1945 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2710 1230 ugSample 112919 1048 121819 1111 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-10Client Sample ID Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND H 304 401 ugSample 112919 1048 120719 0035 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

608 608 ugSample 112919 1048 120719 0035 111133-Pentafluorobutane ND H

304 438 ugSample 112919 1048 120719 0035 1111-Trichloroethane ND H

608 120 ugSample 112919 1048 120719 0035 1111-Trifluoro-22-dichloroethane ND H

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-10Client Sample ID Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

111-Trifluoroethane ND H 608 608 ugSample 112919 1048 120719 0035 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

304 584 ugSample 112919 1048 120719 0035 11122-Tetrachloroethane ND H

608 341 ugSample 112919 1048 120719 0035 1112-Trichloro-122-trifluoroethane ND H

608 608 ugSample 112919 1048 120719 0035 1112-trichloro-1-fluoroethane ND H

304 316 ugSample 112919 1048 120719 0035 1112-Trichloroethane ND H

608 304 ugSample 112919 1048 120719 0035 111-Dichloro-1-fluoroethane ND H

608 608 ugSample 112919 1048 120719 0035 111-dichloro-22-difluoroethane ND H

608 608 ugSample 112919 1048 120719 0035 111-dichloro-22-difluoroethene ND H

304 365 ugSample 112919 1048 120719 0035 111-Dichloroethane ND H

304 450 ugSample 112919 1048 120719 0035 111-Dichloroethene ND H

304 328 ugSample 112919 1048 120719 0035 111-Dichloropropene ND H

608 608 ugSample 112919 1048 120719 0035 111-Difluoroethene ND H

608 608 ugSample 112919 1048 120719 0035 1122-trichloro-11-difluoroethane ND H

304 973 ugSample 112919 1048 120719 0035 1123-Trichlorobenzene ND H

304 754 ugSample 112919 1048 120719 0035 1123-Trichloropropane ND H

304 102 ugSample 112919 1048 120719 0035 1124-Trichlorobenzene ND H

304 632 ugSample 112919 1048 120719 0035 1124-Trimethylbenzene ND H

608 107 ugSample 112919 1048 120719 0035 112-Dibromo-3-Chloropropane ND H

304 401 ugSample 112919 1048 120719 0035 112-Dibromoethane (EDB) ND H

608 608 ugSample 112919 1048 120719 0035 112-dichloro-11-difluoroethane ND H

304 535 ugSample 112919 1048 120719 0035 112-Dichlorobenzene ND H

304 511 ugSample 112919 1048 120719 0035 112-Dichloroethane ND H

304 304 ugSample 112919 1048 120719 0035 112-Dichloropropane ND H

304 632 ugSample 112919 1048 120719 0035 1135-Trimethylbenzene ND H

304 523 ugSample 112919 1048 120719 0035 113-Dichlorobenzene ND H

304 341 ugSample 112919 1048 120719 0035 113-Dichloropropane ND H

304 608 ugSample 112919 1048 120719 0035 114-Dichlorobenzene ND H

608 620 ugSample 112919 1048 120719 0035 11-Chloro-11-difluoroethane ND H

608 608 ugSample 112919 1048 120719 0035 122-dichloro-11-difluoroethylmethyl

ether

ND H

304 888 ugSample 112919 1048 120719 0035 122-Dichloropropane ND H

122 195 ugSample 112919 1048 120719 0035 12-Butanone (MEK) ND H

608 900 ugSample 112919 1048 120719 0035 12-chloro-111444-hexafluoro-2-but

ene

ND H

608 608 ugSample 112919 1048 120719 0035 12-Chloro-111-Trifluoroethane ND H

304 572 ugSample 112919 1048 120719 0035 12-Chlorotoluene ND H

122 280 ugSample 112919 1048 120719 0035 12-Hexanone ND H

266 266 ugSample 112919 1048 120719 0035 12-MTP as HFPO 629 H

304 632 ugSample 112919 1048 120719 0035 14-Chlorotoluene ND H

304 815 ugSample 112919 1048 120719 0035 14-Isopropyltoluene ND H

122 195 ugSample 112919 1048 120719 0035 14-Methyl-2-pentanone (MIBK) ND H

122 718 ugSample 112919 1048 120719 0035 1Acetone ND H

304 584 ugSample 112919 1048 120719 0035 1Benzene ND H

304 426 ugSample 112919 1048 120719 0035 1Bromobenzene ND H

304 681 ugSample 112919 1048 120719 0035 1Bromochloromethane ND H

304 523 ugSample 112919 1048 120719 0035 1Bromodichloromethane ND H

304 924 ugSample 112919 1048 120719 0035 1Bromoform ND H

608 353 ugSample 112919 1048 120719 0035 1Bromomethane ND H

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-10Client Sample ID Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Carbon disulfide ND H 304 754 ugSample 112919 1048 120719 0035 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

304 401 ugSample 112919 1048 120719 0035 1Carbon tetrachloride ND H

894 894 ugSample 112919 1048 120719 0035 1Carbonyl Difluoride ND H

304 438 ugSample 112919 1048 120719 0035 1Chlorobenzene ND H

304 657 ugSample 112919 1048 120719 0035 1Chlorodibromomethane ND H

608 134 ugSample 112919 1048 120719 0035 1Chloroethane ND H

304 353 ugSample 112919 1048 120719 0035 1Chloroform ND H

608 253 ugSample 112919 1048 120719 0035 1Chloromethane ND H

304 243 ugSample 112919 1048 120719 0035 1cis-12-Dichloroethene ND H

304 523 ugSample 112919 1048 120719 0035 1cis-13-Dichloropropene ND H

304 292 ugSample 112919 1048 120719 0035 1Dibromomethane ND H

608 107 ugSample 112919 1048 120719 0035 1Dichlorodifluoromethane ND H

304 499 ugSample 112919 1048 120719 0035 1Ethylbenzene ND H

304 304 ugSample 112919 1048 120719 0035 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND H

304 803 ugSample 112919 1048 120719 0035 1Hexachlorobutadiene ND H

292 292 ugSample 112919 1048 120719 0035 1HFPO dimer methyl ester as

HFPO-DA

ND H

304 426 ugSample 112919 1048 120719 0035 1Isopropylbenzene ND H

608 499 ugSample 112919 1048 120719 0035 1mp-Xylene ND H

304 195 ugSample 112919 1048 120719 0035 1Methylene Chloride ND H

304 146 ugSample 112919 1048 120719 0035 1Naphthalene ND H

304 778 ugSample 112919 1048 120719 0035 1n-Butylbenzene ND H

304 657 ugSample 112919 1048 120719 0035 1n-Propylbenzene ND H

304 316 ugSample 112919 1048 120719 0035 1o-Xylene ND H

304 596 ugSample 112919 1048 120719 0035 1sec-Butylbenzene ND H

304 657 ugSample 112919 1048 120719 0035 1Styrene ND H

304 535 ugSample 112919 1048 120719 0035 1tert-Butylbenzene ND H

304 401 ugSample 112919 1048 120719 0035 1Tetrachloroethene ND H

304 559 ugSample 112919 1048 120719 0035 1Toluene ND H

304 316 ugSample 112919 1048 120719 0035 1trans-12-Dichloroethene ND H

304 107 ugSample 112919 1048 120719 0035 1trans-13-Dichloropropene ND H

304 219 ugSample 112919 1048 120719 0035 1Trichloroethene ND H

608 584 ugSample 112919 1048 120719 0035 1Trichlorofluoromethane ND H

608 146 ugSample 112919 1048 120719 0035 1Vinyl chloride ND H

Butanoic acid heptafluoro- sodium

salt

484 T H J N ugSample 113 2218-54-4 112919 1048 120719 0035 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120719 0035112919 1048T H JUnknown 1700 ugSample 118

1120719 0035112919 1048T H J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-8316 ugSample 122

1120719 0035112919 1048T H J NCyclohexane 110-82-7432 ugSample 442

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1048 120719 0035 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 110 112919 1048 120719 0035 157 - 152

Dibromofluoromethane (Surr) 103 112919 1048 120719 0035 162 - 134

Toluene-d8 (Surr) 97 112919 1048 120719 0035 171 - 139

Eurofins TestAmerica Knoxville

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-10Client Sample ID Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 3540 J 6490 3240 ugSample 112919 1048 121319 2006 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2680 1220 ugSample 112919 1048 121819 1215 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-11Client Sample ID Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND H 314 414 ugSample 112919 1048 120719 0059 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

627 627 ugSample 112919 1048 120719 0059 111133-Pentafluorobutane ND H

314 452 ugSample 112919 1048 120719 0059 1111-Trichloroethane ND H

627 124 ugSample 112919 1048 120719 0059 1111-Trifluoro-22-dichloroethane ND H

627 627 ugSample 112919 1048 120719 0059 1111-Trifluoroethane ND H

314 602 ugSample 112919 1048 120719 0059 11122-Tetrachloroethane ND H

627 351 ugSample 112919 1048 120719 0059 1112-Trichloro-122-trifluoroethane ND H

627 627 ugSample 112919 1048 120719 0059 1112-trichloro-1-fluoroethane ND H

314 326 ugSample 112919 1048 120719 0059 1112-Trichloroethane ND H

627 314 ugSample 112919 1048 120719 0059 111-Dichloro-1-fluoroethane ND H

627 627 ugSample 112919 1048 120719 0059 111-dichloro-22-difluoroethane ND H

627 627 ugSample 112919 1048 120719 0059 111-dichloro-22-difluoroethene ND H

314 376 ugSample 112919 1048 120719 0059 111-Dichloroethane ND H

314 464 ugSample 112919 1048 120719 0059 111-Dichloroethene ND H

314 339 ugSample 112919 1048 120719 0059 111-Dichloropropene ND H

627 627 ugSample 112919 1048 120719 0059 111-Difluoroethene ND H

627 627 ugSample 112919 1048 120719 0059 1122-trichloro-11-difluoroethane ND H

314 100 ugSample 112919 1048 120719 0059 1123-Trichlorobenzene ND H

314 778 ugSample 112919 1048 120719 0059 1123-Trichloropropane ND H

314 105 ugSample 112919 1048 120719 0059 1124-Trichlorobenzene ND H

314 653 ugSample 112919 1048 120719 0059 1124-Trimethylbenzene ND H

627 110 ugSample 112919 1048 120719 0059 112-Dibromo-3-Chloropropane ND H

314 414 ugSample 112919 1048 120719 0059 112-Dibromoethane (EDB) ND H

627 627 ugSample 112919 1048 120719 0059 112-dichloro-11-difluoroethane ND H

314 552 ugSample 112919 1048 120719 0059 112-Dichlorobenzene ND H

314 527 ugSample 112919 1048 120719 0059 112-Dichloroethane ND H

314 314 ugSample 112919 1048 120719 0059 112-Dichloropropane ND H

314 653 ugSample 112919 1048 120719 0059 1135-Trimethylbenzene ND H

314 540 ugSample 112919 1048 120719 0059 113-Dichlorobenzene ND H

314 351 ugSample 112919 1048 120719 0059 113-Dichloropropane ND H

314 627 ugSample 112919 1048 120719 0059 114-Dichlorobenzene ND H

627 640 ugSample 112919 1048 120719 0059 11-Chloro-11-difluoroethane ND H

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-11Client Sample ID Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

22-dichloro-11-difluoroethylmethyl

ether

ND H 627 627 ugSample 112919 1048 120719 0059 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

314 916 ugSample 112919 1048 120719 0059 122-Dichloropropane ND H

125 201 ugSample 112919 1048 120719 0059 12-Butanone (MEK) ND H

627 929 ugSample 112919 1048 120719 0059 12-chloro-111444-hexafluoro-2-but

ene

ND H

627 627 ugSample 112919 1048 120719 0059 12-Chloro-111-Trifluoroethane ND H

314 590 ugSample 112919 1048 120719 0059 12-Chlorotoluene ND H

125 289 ugSample 112919 1048 120719 0059 12-Hexanone ND H

274 274 ugSample 112919 1048 120719 0059 12-MTP as HFPO 609 H

314 653 ugSample 112919 1048 120719 0059 14-Chlorotoluene ND H

314 841 ugSample 112919 1048 120719 0059 14-Isopropyltoluene ND H

125 201 ugSample 112919 1048 120719 0059 14-Methyl-2-pentanone (MIBK) ND H

125 740 ugSample 112919 1048 120719 0059 1Acetone ND H

314 602 ugSample 112919 1048 120719 0059 1Benzene ND H

314 439 ugSample 112919 1048 120719 0059 1Bromobenzene ND H

314 703 ugSample 112919 1048 120719 0059 1Bromochloromethane ND H

314 540 ugSample 112919 1048 120719 0059 1Bromodichloromethane ND H

314 954 ugSample 112919 1048 120719 0059 1Bromoform ND H

627 364 ugSample 112919 1048 120719 0059 1Bromomethane ND H

314 778 ugSample 112919 1048 120719 0059 1Carbon disulfide ND H

314 414 ugSample 112919 1048 120719 0059 1Carbon tetrachloride ND H

916 916 ugSample 112919 1048 120719 0059 1Carbonyl Difluoride ND H

314 452 ugSample 112919 1048 120719 0059 1Chlorobenzene ND H

314 678 ugSample 112919 1048 120719 0059 1Chlorodibromomethane ND H

627 138 ugSample 112919 1048 120719 0059 1Chloroethane ND H

314 364 ugSample 112919 1048 120719 0059 1Chloroform ND H

627 261 ugSample 112919 1048 120719 0059 1Chloromethane ND H

314 251 ugSample 112919 1048 120719 0059 1cis-12-Dichloroethene ND H

314 540 ugSample 112919 1048 120719 0059 1cis-13-Dichloropropene ND H

314 301 ugSample 112919 1048 120719 0059 1Dibromomethane ND H

627 110 ugSample 112919 1048 120719 0059 1Dichlorodifluoromethane ND H

314 515 ugSample 112919 1048 120719 0059 1Ethylbenzene ND H

314 314 ugSample 112919 1048 120719 0059 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND H

314 828 ugSample 112919 1048 120719 0059 1Hexachlorobutadiene ND H

301 301 ugSample 112919 1048 120719 0059 1HFPO dimer methyl ester as

HFPO-DA

ND H

314 439 ugSample 112919 1048 120719 0059 1Isopropylbenzene ND H

627 515 ugSample 112919 1048 120719 0059 1mp-Xylene ND H

314 201 ugSample 112919 1048 120719 0059 1Methylene Chloride ND H

314 151 ugSample 112919 1048 120719 0059 1Naphthalene ND H

314 803 ugSample 112919 1048 120719 0059 1n-Butylbenzene ND H

314 678 ugSample 112919 1048 120719 0059 1n-Propylbenzene ND H

314 326 ugSample 112919 1048 120719 0059 1o-Xylene ND H

314 615 ugSample 112919 1048 120719 0059 1sec-Butylbenzene ND H

314 678 ugSample 112919 1048 120719 0059 1Styrene ND H

314 552 ugSample 112919 1048 120719 0059 1tert-Butylbenzene ND H

Eurofins TestAmerica Knoxville

12232019Page 39 of 89490

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-11Client Sample ID Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Tetrachloroethene ND H 314 414 ugSample 112919 1048 120719 0059 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

314 577 ugSample 112919 1048 120719 0059 1Toluene ND H

314 326 ugSample 112919 1048 120719 0059 1trans-12-Dichloroethene ND H

314 110 ugSample 112919 1048 120719 0059 1trans-13-Dichloropropene ND H

314 226 ugSample 112919 1048 120719 0059 1Trichloroethene ND H

627 602 ugSample 112919 1048 120719 0059 1Trichlorofluoromethane ND H

627 151 ugSample 112919 1048 120719 0059 1Vinyl chloride ND H

Propene hexafluoro- 421 T H J N ugSample 113 116-15-4 112919 1048 120719 0059 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120719 0059112919 1048T H JUnknown 882 ugSample 118

12-Dichloroethane-d4 (Surr) 116 70 - 160 112919 1048 120719 0059 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1048 120719 0059 157 - 152

Dibromofluoromethane (Surr) 105 112919 1048 120719 0059 162 - 134

Toluene-d8 (Surr) 96 112919 1048 120719 0059 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine ND 6690 3350 ugSample 112919 1048 121319 2027 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2760 1250 ugSample 112919 1048 121819 1238 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-12Client Sample ID Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND H 307 406 ugSample 112919 1048 120719 0124 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

615 615 ugSample 112919 1048 120719 0124 111133-Pentafluorobutane ND H

307 443 ugSample 112919 1048 120719 0124 1111-Trichloroethane ND H

615 122 ugSample 112919 1048 120719 0124 1111-Trifluoro-22-dichloroethane ND H

615 615 ugSample 112919 1048 120719 0124 1111-Trifluoroethane ND H

307 590 ugSample 112919 1048 120719 0124 11122-Tetrachloroethane ND H

615 344 ugSample 112919 1048 120719 0124 1112-Trichloro-122-trifluoroethane ND H

615 615 ugSample 112919 1048 120719 0124 1112-trichloro-1-fluoroethane ND H

307 320 ugSample 112919 1048 120719 0124 1112-Trichloroethane ND H

615 307 ugSample 112919 1048 120719 0124 111-Dichloro-1-fluoroethane ND H

615 615 ugSample 112919 1048 120719 0124 111-dichloro-22-difluoroethane ND H

615 615 ugSample 112919 1048 120719 0124 111-dichloro-22-difluoroethene ND H

307 369 ugSample 112919 1048 120719 0124 111-Dichloroethane ND H

Eurofins TestAmerica Knoxville

12232019Page 40 of 89491

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-12Client Sample ID Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

11-Dichloroethene ND H 307 455 ugSample 112919 1048 120719 0124 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

307 332 ugSample 112919 1048 120719 0124 111-Dichloropropene ND H

615 615 ugSample 112919 1048 120719 0124 111-Difluoroethene ND H

615 615 ugSample 112919 1048 120719 0124 1122-trichloro-11-difluoroethane ND H

307 983 ugSample 112919 1048 120719 0124 1123-Trichlorobenzene ND H

307 762 ugSample 112919 1048 120719 0124 1123-Trichloropropane ND H

307 103 ugSample 112919 1048 120719 0124 1124-Trichlorobenzene ND H

307 639 ugSample 112919 1048 120719 0124 1124-Trimethylbenzene ND H

615 108 ugSample 112919 1048 120719 0124 112-Dibromo-3-Chloropropane ND H

307 406 ugSample 112919 1048 120719 0124 112-Dibromoethane (EDB) ND H

615 615 ugSample 112919 1048 120719 0124 112-dichloro-11-difluoroethane ND H

307 541 ugSample 112919 1048 120719 0124 112-Dichlorobenzene ND H

307 516 ugSample 112919 1048 120719 0124 112-Dichloroethane ND H

307 307 ugSample 112919 1048 120719 0124 112-Dichloropropane ND H

307 639 ugSample 112919 1048 120719 0124 1135-Trimethylbenzene ND H

307 529 ugSample 112919 1048 120719 0124 113-Dichlorobenzene ND H

307 344 ugSample 112919 1048 120719 0124 113-Dichloropropane ND H

307 615 ugSample 112919 1048 120719 0124 114-Dichlorobenzene ND H

615 627 ugSample 112919 1048 120719 0124 11-Chloro-11-difluoroethane ND H

615 615 ugSample 112919 1048 120719 0124 122-dichloro-11-difluoroethylmethyl

ether

ND H

307 897 ugSample 112919 1048 120719 0124 122-Dichloropropane ND H

123 197 ugSample 112919 1048 120719 0124 12-Butanone (MEK) ND H

615 910 ugSample 112919 1048 120719 0124 12-chloro-111444-hexafluoro-2-but

ene

ND H

615 615 ugSample 112919 1048 120719 0124 12-Chloro-111-Trifluoroethane ND H

307 578 ugSample 112919 1048 120719 0124 12-Chlorotoluene ND H

123 283 ugSample 112919 1048 120719 0124 12-Hexanone ND H

268 268 ugSample 112919 1048 120719 0124 12-MTP as HFPO 583 H

307 639 ugSample 112919 1048 120719 0124 14-Chlorotoluene ND H

307 824 ugSample 112919 1048 120719 0124 14-Isopropyltoluene ND H

123 197 ugSample 112919 1048 120719 0124 14-Methyl-2-pentanone (MIBK) ND H

123 725 ugSample 112919 1048 120719 0124 1Acetone ND H

307 590 ugSample 112919 1048 120719 0124 1Benzene ND H

307 430 ugSample 112919 1048 120719 0124 1Bromobenzene ND H

307 688 ugSample 112919 1048 120719 0124 1Bromochloromethane ND H

307 529 ugSample 112919 1048 120719 0124 1Bromodichloromethane ND H

307 934 ugSample 112919 1048 120719 0124 1Bromoform ND H

615 356 ugSample 112919 1048 120719 0124 1Bromomethane ND H

307 762 ugSample 112919 1048 120719 0124 1Carbon disulfide ND H

307 406 ugSample 112919 1048 120719 0124 1Carbon tetrachloride ND H

901 901 ugSample 112919 1048 120719 0124 1Carbonyl Difluoride ND H

307 443 ugSample 112919 1048 120719 0124 1Chlorobenzene ND H

307 664 ugSample 112919 1048 120719 0124 1Chlorodibromomethane ND H

615 135 ugSample 112919 1048 120719 0124 1Chloroethane ND H

307 356 ugSample 112919 1048 120719 0124 1Chloroform ND H

615 256 ugSample 112919 1048 120719 0124 1Chloromethane ND H

307 246 ugSample 112919 1048 120719 0124 1cis-12-Dichloroethene ND H

Eurofins TestAmerica Knoxville

12232019Page 41 of 89492

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-12Client Sample ID Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

cis-13-Dichloropropene ND H 307 529 ugSample 112919 1048 120719 0124 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

307 295 ugSample 112919 1048 120719 0124 1Dibromomethane ND H

615 108 ugSample 112919 1048 120719 0124 1Dichlorodifluoromethane ND H

307 504 ugSample 112919 1048 120719 0124 1Ethylbenzene ND H

307 307 ugSample 112919 1048 120719 0124 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND H

307 811 ugSample 112919 1048 120719 0124 1Hexachlorobutadiene ND H

294 294 ugSample 112919 1048 120719 0124 1HFPO dimer methyl ester as

HFPO-DA

ND H

307 430 ugSample 112919 1048 120719 0124 1Isopropylbenzene ND H

615 504 ugSample 112919 1048 120719 0124 1mp-Xylene ND H

307 197 ugSample 112919 1048 120719 0124 1Methylene Chloride ND H

307 148 ugSample 112919 1048 120719 0124 1Naphthalene ND H

307 787 ugSample 112919 1048 120719 0124 1n-Butylbenzene ND H

307 664 ugSample 112919 1048 120719 0124 1n-Propylbenzene ND H

307 320 ugSample 112919 1048 120719 0124 1o-Xylene ND H

307 602 ugSample 112919 1048 120719 0124 1sec-Butylbenzene ND H

307 664 ugSample 112919 1048 120719 0124 1Styrene ND H

307 541 ugSample 112919 1048 120719 0124 1tert-Butylbenzene ND H

307 406 ugSample 112919 1048 120719 0124 1Tetrachloroethene ND H

307 565 ugSample 112919 1048 120719 0124 1Toluene ND H

307 320 ugSample 112919 1048 120719 0124 1trans-12-Dichloroethene ND H

307 108 ugSample 112919 1048 120719 0124 1trans-13-Dichloropropene ND H

307 221 ugSample 112919 1048 120719 0124 1Trichloroethene ND H

615 590 ugSample 112919 1048 120719 0124 1Trichlorofluoromethane ND H

615 148 ugSample 112919 1048 120719 0124 1Vinyl chloride ND H

Propene hexafluoro- 333 T H J N ugSample 113 116-15-4 112919 1048 120719 0124 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120719 0124112919 1048T H JUnknown 498 ugSample 118

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1048 120719 0124 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 112919 1048 120719 0124 157 - 152

Dibromofluoromethane (Surr) 104 112919 1048 120719 0124 162 - 134

Toluene-d8 (Surr) 96 112919 1048 120719 0124 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 28100 6560 3280 ugSample 112919 1048 121319 2047 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2700 1230 ugSample 112919 1048 121819 1259 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Eurofins TestAmerica Knoxville

12232019Page 42 of 89493

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17461-1ProjectSite VEN Stack - MM-18

Method 8260B - Volatile Organic Compounds (GCMS)Prep MeOH Prep

2501112-Tetrachloroethane ugSample

Analyte UnitsMDLRL

0330

50011133-Pentafluorobutane ugSample0500

250111-Trichloroethane ugSample0360

500111-Trifluoro-22-dichloroethane ugSample0990

500111-Trifluoroethane ugSample0500

2501122-Tetrachloroethane ugSample0480

500112-Trichloro-122-trifluoroethane ugSample0280

500112-trichloro-1-fluoroethane ugSample0500

250112-Trichloroethane ugSample0260

50011-Dichloro-1-fluoroethane ugSample250

50011-dichloro-22-difluoroethane ugSample0500

50011-dichloro-22-difluoroethene ugSample0500

25011-Dichloroethane ugSample0300

25011-Dichloroethene ugSample0370

25011-Dichloropropene ugSample0270

50011-Difluoroethene ugSample500

500122-trichloro-11-difluoroethane ugSample0500

250123-Trichlorobenzene ugSample0800

250123-Trichloropropane ugSample0620

250124-Trichlorobenzene ugSample0840

250124-Trimethylbenzene ugSample0520

50012-Dibromo-3-Chloropropane ugSample0880

25012-Dibromoethane (EDB) ugSample0330

50012-dichloro-11-difluoroethane ugSample0500

25012-Dichlorobenzene ugSample0440

25012-Dichloroethane ugSample0420

25012-Dichloropropane ugSample0250

250135-Trimethylbenzene ugSample0520

25013-Dichlorobenzene ugSample0430

25013-Dichloropropane ugSample0280

25014-Dichlorobenzene ugSample0500

5001-Chloro-11-difluoroethane ugSample0510

50022-dichloro-11-difluoroethylmethyl ether ugSample0500

25022-Dichloropropane ugSample0730

1002-Butanone (MEK) ugSample160

5002-chloro-111444-hexafluoro-2-butene ugSample0740

5002-Chloro-111-Trifluoroethane ugSample0500

2502-Chlorotoluene ugSample0470

1002-Hexanone ugSample230

2502-MTP as HFPO ugSample250

2504-Chlorotoluene ugSample0520

2504-Isopropyltoluene ugSample0670

1004-Methyl-2-pentanone (MIBK) ugSample160

100Acetone ugSample590

250Benzene ugSample0480

250Bromobenzene ugSample0350

250Bromochloromethane ugSample0560

250Bromodichloromethane ugSample0430

250Bromoform ugSample0760

500Bromomethane ugSample290

250Carbon disulfide ugSample0620

250Carbon tetrachloride ugSample0330

Eurofins TestAmerica Knoxville

12232019Page 43 of 89494

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17461-1ProjectSite VEN Stack - MM-18

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)Prep MeOH Prep

100Carbonyl Difluoride ugSample

Analyte UnitsMDLRL

100

250Chlorobenzene ugSample0360

250Chlorodibromomethane ugSample0540

500Chloroethane ugSample110

250Chloroform ugSample0290

500Chloromethane ugSample208

250cis-12-Dichloroethene ugSample0200

250cis-13-Dichloropropene ugSample0430

250Dibromomethane ugSample0240

500Dichlorodifluoromethane ugSample0880

250Ethylbenzene ugSample0410

250Heptafluoropropyl 1222-tetrafluoroethyl ether ugSample250

250Hexachlorobutadiene ugSample0660

250HFPO dimer methyl ester as HFPO-DA ugSample250

250Isopropylbenzene ugSample0350

500mp-Xylene ugSample0410

250Methylene Chloride ugSample160

250Naphthalene ugSample120

250n-Butylbenzene ugSample0640

250n-Propylbenzene ugSample0540

250o-Xylene ugSample0260

250sec-Butylbenzene ugSample0490

250Styrene ugSample0540

250tert-Butylbenzene ugSample0440

250Tetrachloroethene ugSample0330

250Toluene ugSample0460

250trans-12-Dichloroethene ugSample0260

250trans-13-Dichloropropene ugSample0880

250Trichloroethene ugSample0180

500Trichlorofluoromethane ugSample0480

500Vinyl chloride ugSample120

Method 9056 - Anions Ion ChromatographyPrep MeOH Prep

110Hydrogen Fluoride ugSample

Analyte UnitsMDLRL

500

1000Total Fluorine ugSample500

Eurofins TestAmerica Knoxville

12232019Page 44 of 89495

ANALYTICAL REPORTJob Number 140-17557-1

Job Description VEN Stack - MM-18

Contract Number LBIO-67048

ForChemours Company FC LLC The

co AECOMSabre Building Suite 300

4051 Ogletown RoadNewark DE 19713

Attention Michael Aucoin

_____________________________________________

Approved for releaseCourtney M AdkinsProject Manager II12302019 639 AM

Courtney M Adkins Project Manager II5815 Middlebrook Pike Knoxville TN 37921

(865)291-3000 courtneyadkinstestamericainccom

12302019

This report may not be reproduced except in full and with written approval from the laboratory For questions please contact the Project Manager atthe e-mail address or telephone number listed on this page

The test results in this report relate only to the samples as received by the laboratory and will meet all requirements of the methodology with anyexceptions noted This report shall not be reproduced except in full without the express written approval of the laboratory All questions should bedirected to the Eurofins TestAmerica Project Manager

This report has been electronically signed and authorized by the signatory Electronic signature is intended to be the legally binding equivalent of atraditionally handwritten signature

Eurofins TestAmerica Knoxville

5815 Middlebrook Pike Knoxville TN 37921

Tel (865) 291-3000 Fax (865) 584-4315 wwwtestamericainccom

12302019Page 1 of 70696

Table of ContentsCover Title Page 1

Data Summaries 5

Definitions 5

Method Summary 6

Sample Summary 7

Case Narrative 8

QC Association 10

Client Sample Results 13

Default Detection Limits 28

Surrogate Summary 30

QC Sample Results 31

Chronicle 38

Certification Summary 44

Manual Integration Summary 45

Organic Sample Data 55

GCMS VOA 55

Method 8260B 55Method 8260B QC Summary 56Method 8260B Sample Data 71Standards Data 188

Method 8260B ICAL Data 188Method 8260B CCAL Data 290

Raw QC Data 362Method 8260B Tune Data 362Method 8260B Blank Data 382Method 8260B LCSLCSD Data 391

12302019Page 2 of 70697

Table of ContentsMethod 8260B MSMSD Data 403

Method 8260B Run Logs 411Method 8260B Prep Data 428

HPLCIC 431

Method 9056 431Method 9056 QC Summary 432Method 9056 Sample Data 437Standards Data 455

Method 9056 ICAL Data 455Method 9056 CCAL Data 482

Raw QC Data 511Method 9056 Blank Data 511Method 9056 LCSLCSD Data 532Method 9056 MSMSD Data 538

Method 9056 Run Logs 544Method 9056 Prep Data 549

Method 9056A Total Halogens 552Method 9056A Total Halogens QC Summary 553Method 9056A Total Halogens Sample Data 558Standards Data 576

Method 9056A Total Halogens ICAL Data 576Method 9056A Total Halogens CCAL Data 601

Raw QC Data 629Method 9056A Total Halogens Blank Data 629Method 9056A Total Halogens LCSLCSD Data 654Method 9056A Total Halogens MSMSD Data 660

12302019Page 3 of 70698

Table of ContentsMethod 9056A Total Halogens Run Logs 666Method 9056A Total Halogens Prep Data 680

Inorganic Sample Data 685

General Chemistry Data 685

Gen Chem Cover Page 686

Gen Chem Sample Data 687

Gen Chem QC Data 693Gen Chem ICVCCV 693Gen Chem Duplicates 694

Gen Chem MDL 695

Gen Chem Analysis Run Log 696

Gen Chem Prep Data 697

Gen Chem Raw Data 698

Shipping and Receiving Documents 699

Client Chain of Custody 700

12302019Page 4 of 70699

DefinitionsGlossaryJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Qualifiers

GCMS VOAQualifier Description

LCS or LCSD is outside acceptance limits

Qualifier

4 MS MSD The analyte present in the original sample is greater than 4 times the matrix spike concentration therefore control limits are not

applicableE Result exceeded calibration range

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

GCMS VOA TICsQualifier Description

J Indicates an Estimated Value for TICs

Qualifier

N Presumptive evidence of material

T Result is a tentatively identified compound (TIC) and an estimated value

HPLCICQualifier Description

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

Qualifier

General ChemistryQualifier Description

HF Field parameter with a holding time of 15 minutes Test performed by laboratory at clients request

Qualifier

GlossaryThese commonly used abbreviations may or may not be present in this report

curren Listed under the D column to designate that the result is reported on a dry weight basis

Abbreviation

R Percent Recovery

CFL Contains Free Liquid

CNF Contains No Free Liquid

DER Duplicate Error Ratio (normalized absolute difference)

Dil Fac Dilution Factor

DL Detection Limit (DoDDOE)

DL RA RE IN Indicates a Dilution Re-analysis Re-extraction or additional Initial metalsanion analysis of the sample

DLC Decision Level Concentration (Radiochemistry)

EDL Estimated Detection Limit (Dioxin)

LOD Limit of Detection (DoDDOE)

LOQ Limit of Quantitation (DoDDOE)

MDA Minimum Detectable Activity (Radiochemistry)

MDC Minimum Detectable Concentration (Radiochemistry)

MDL Method Detection Limit

ML Minimum Level (Dioxin)

NC Not Calculated

ND Not Detected at the reporting limit (or MDL or EDL if shown)

PQL Practical Quantitation Limit

QC Quality Control

RER Relative Error Ratio (Radiochemistry)

RL Reporting Limit or Requested Limit (Radiochemistry)

RPD Relative Percent Difference a measure of the relative difference between two points

TEF Toxicity Equivalent Factor (Dioxin)

TEQ Toxicity Equivalent Quotient (Dioxin)

Eurofins TestAmerica Knoxville

12302019Page 5 of 706100

Method SummaryJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Method Method Description LaboratoryProtocol

SW8468260B Volatile Organic Compounds (GCMS) TAL KNX

SW8469056 Anions Ion Chromatography TAL KNX

SW8469041A pH TAL KNX

SW8465050 Bomb Preparation Method for Solid Waste TAL KNX

NoneMeOH Prep Methanol Impinger Preparation TAL KNX

Protocol References

None = None

SW846 = Test Methods For Evaluating Solid Waste PhysicalChemical Methods Third Edition November 1986 And Its Updates

Laboratory References

TAL KNX = Eurofins TestAmerica Knoxville 5815 Middlebrook Pike Knoxville TN 37921 TEL (865)291-3000

Eurofins TestAmerica Knoxville

12302019Page 6 of 706101

Sample SummaryJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID Client Sample ID ReceivedCollectedMatrix Asset ID

140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 Air 120419 0000 120719 0800

140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 Air 120419 0000 120719 0800

140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 Air 120419 0000 120719 0800

140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 Air 120419 0000 120719 0800

140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 Air 120419 0000 120719 0800

140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 Air 120419 0000 120719 0800

Eurofins TestAmerica Knoxville

12302019Page 7 of 706102

Job Narrative140-17557-1

Receipt The samples were received on December 7 2019 at 800 AM the samples arrived in good condition properly preserved and where required on ice The temperatures of the 2 coolers at receipt time were 09ordm C and 14ordm C

GCMS VOA Impinger Sample Preparation and Analysis Impinger samples were analyzed for the volatile organic target analytes by purge and trap GCMS using Eurofins TestAmerica Knoxville standard operating procedure KNOX-MS-0015 based on the following method

middot SW-846 8260B ldquoVolatile Organic Compounds by Gas Chromatography Mass Spectrometry (GCMS)rdquo

Each sample is prepared by adding a known amount of sample to the purge water in a purge and trap vessel and spiking with internal standards surrogates and matrix spike analytes (as needed) Volatile compounds are introduced into the gas chromatograph by the purge and trap method The components are separated using the chromatograph and detected using a mass spectrometer which provides both qualitative and quantitative information

Impinger sample results were calculated using the following equation

Concentration μgsample = (C times DF times W times Vt) (Va)WhereC = On-column concentration μgLDF = Dilution factorW = Volume of water purged LVt = Methanol extract final volume μL Va = Volume of extract analyzed microL

Method 8260B (LCS 140-359561-A) for analytical batch 140-35964 recovered below marginal exceedance limits for Trichlorofluoromethane This is an ongoing instrument issue with LCS recoveries for this analyte The project manager approved moving forward with analysis for the current job

Method 8260B The following samples were diluted to bring the concentration of target analytes within the calibration range Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 (140-17557-1) Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 (140-17557-2) Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 (140-17557-3) Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 (140-17557-4) Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 (140-17557-5) and Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 (140-17557-6) Elevated reporting limits (RLs) are provided

Method 8260B The continuing calibration verification (CCV) associated with batch 140-35990 recovered above the upper control limit for Chloroethane The samples associated with this CCV were non-detects for the affected analytes therefore the data have been reported

No additional analytical or quality issues were noted other than those described above or in the DefinitionsGlossary page

General Chemistry Total Halogens The samples were prepared for total fluorine chlorine bromine andor iodine using SOP number KNOX-WC-0016 (based on ASTM Method E442 and SW-846 Method 5050) The sample is oxidized by combustion in an oxygen flask at atmospheric pressure or a bomb containing oxygen under pressure The liberated halogen compounds are absorbed primarily as halides in a sodium carbonatesodium bicarbonate buffer solution The combustion products are collected by repeated rinsing of the combustion apparatus and analyzed by ion chromatography in accordance with SOP KNOX-WC-0005 (based on SW-846 Method 9056) The results are calculated using the following equation

C = [(Ccom times Vcom) W] times 1000 gKg

WhereC = Concentration of analyte in the sample mgKgCcom = Concentration of analyte in the combustate mgLVcom = Total volume of combustate LW = Weight of sample combusted g

Anions in Impinger Solutions Anions are is determined in accordance to SOP KNOX-WC-0005 (based on methods 3000A and 9056) The samples were diluted a minimum of 120 in ion chromatography solvent buffer solution to reduce the methanol concentration before injection Buffer concentrate was added until the pH was 10 Samples are diluted with ion chromatography eluate solution to bring the

12302019Page 8 of 706103

concentrations within the calibration range when necessary Higher dilutions are applied as necessary

An aliquot of prepared sample is introduced into the ion chromatograph Anions are identified based on their retention times as compared to those of known standards Quantification is accomplished by measuring the peak response and comparing it to a calibration curve generated from known standards

The pH of all samples were tested with pH paper QC consisted of initial CCV and LCS which also serve as initial calibration duplicate analysis for every 10 samples and closing CCV A certified thermometer was used to check the ambient temperature

No additional analytical or quality issues were noted other than those described above or in the DefinitionsGlossary page

12302019Page 9 of 706104

QC Association SummaryJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

GCMS VOA

Prep Batch 35956

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air MeOH Prep140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17557-2 - DL Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17557-3 - DL Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air MeOH Prep140-17557-4 - DL Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air MeOH Prep140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air MeOH Prep140-17557-6 - DL Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH Prep140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH PrepMB 140-359562-A Method Blank TotalNA

Air MeOH PrepLCS 140-359561-A Lab Control Sample TotalNA

Air MeOH Prep140-17557-2 MS Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17557-2 MSD Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Analysis Batch 35964

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8260B 35956140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 8260B 35956140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 8260B 35956140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 8260B 35956140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 8260B 35956140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 8260B 35956140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 8260B 35956MB 140-359562-A Method Blank TotalNA

Air 8260B 35956LCS 140-359561-A Lab Control Sample TotalNA

Air 8260B 35956LCS 140-359561-A Lab Control Sample TotalNA

Analysis Batch 35990

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8260B 35956140-17557-2 - DL Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 8260B 35956140-17557-3 - DL Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 8260B 35956140-17557-4 - DL Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 8260B 35956140-17557-6 - DL Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 8260B 35956140-17557-2 MS Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 8260B 35956140-17557-2 MSD Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

HPLCIC

Prep Batch 35956

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air MeOH Prep140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air MeOH Prep140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air MeOH Prep140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH PrepMB 140-3595619-A Method Blank TotalNA

Air MeOH PrepMB 140-3595619-B Method Blank TotalNA

Air MeOH PrepLCS 140-3595620-A Lab Control Sample TotalNA

Air MeOH PrepLCS 140-3595620-B Lab Control Sample TotalNA

Air MeOH PrepLCSD 140-3595621-A Lab Control Sample Dup TotalNA

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QC Association SummaryJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

HPLCIC (Continued)

Prep Batch 35956 (Continued)

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH PrepLCSD 140-3595621-B Lab Control Sample Dup TotalNA

Air MeOH Prep140-17557-2 MS Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17557-2 MSD Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Prep Batch 35976

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 5050 35956140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 5050 35956140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 5050 35956140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 5050 35956140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 5050 35956140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 5050 35956140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 5050 35956MB 140-3595619-B Method Blank TotalNA

Air 5050 35956LCS 140-3595620-B Lab Control Sample TotalNA

Air 5050 35956LCSD 140-3595621-B Lab Control Sample Dup TotalNA

Air 5050 35956140-17557-2 MS Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 5050 35956140-17557-2 MSD Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Analysis Batch 36294

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35976140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9056 35976140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35976140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9056 35976140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9056 35976140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9056 35976140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9056 35976MB 140-3595619-B Method Blank TotalNA

Air 9056 35976LCS 140-3595620-B Lab Control Sample TotalNA

Air 9056 35976LCSD 140-3595621-B Lab Control Sample Dup TotalNA

Air 9056 35976140-17557-2 MS Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35976140-17557-2 MSD Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Analysis Batch 36325

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35956140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9056 35956140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35956140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9056 35956140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9056 35956140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9056 35956140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9056 35956MB 140-3595619-A Method Blank TotalNA

Air 9056 35956LCS 140-3595620-A Lab Control Sample TotalNA

Air 9056 35956LCSD 140-3595621-A Lab Control Sample Dup TotalNA

Air 9056 35956140-17557-2 MS Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35956140-17557-2 MSD Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

General Chemistry

Analysis Batch 36156

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9041A140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

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QC Association SummaryJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

General Chemistry (Continued)

Analysis Batch 36156 (Continued)

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9041A140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9041A140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9041A140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9041A140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9041A140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9041ALCS 140-361562 Lab Control Sample TotalNA

Air 9041A140-17557-1 DU Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

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Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-1Client Sample ID Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 315 415 ugSample 121019 0947 121019 2258 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

629 629 ugSample 121019 0947 121019 2258 111133-Pentafluorobutane ND

315 453 ugSample 121019 0947 121019 2258 1111-Trichloroethane ND

629 125 ugSample 121019 0947 121019 2258 1111-Trifluoro-22-dichloroethane ND

629 629 ugSample 121019 0947 121019 2258 1111-Trifluoroethane ND

315 604 ugSample 121019 0947 121019 2258 11122-Tetrachloroethane ND

629 352 ugSample 121019 0947 121019 2258 1112-Trichloro-122-trifluoroethane ND

629 629 ugSample 121019 0947 121019 2258 1112-trichloro-1-fluoroethane ND

315 327 ugSample 121019 0947 121019 2258 1112-Trichloroethane ND

629 315 ugSample 121019 0947 121019 2258 111-Dichloro-1-fluoroethane ND

629 629 ugSample 121019 0947 121019 2258 111-dichloro-22-difluoroethane ND

629 629 ugSample 121019 0947 121019 2258 111-dichloro-22-difluoroethene ND

315 378 ugSample 121019 0947 121019 2258 111-Dichloroethane ND

315 466 ugSample 121019 0947 121019 2258 111-Dichloroethene ND

315 340 ugSample 121019 0947 121019 2258 111-Dichloropropene ND

629 629 ugSample 121019 0947 121019 2258 111-Difluoroethene ND

629 629 ugSample 121019 0947 121019 2258 1122-trichloro-11-difluoroethane ND

315 101 ugSample 121019 0947 121019 2258 1123-Trichlorobenzene ND

315 780 ugSample 121019 0947 121019 2258 1123-Trichloropropane ND

315 106 ugSample 121019 0947 121019 2258 1124-Trichlorobenzene ND

315 654 ugSample 121019 0947 121019 2258 1124-Trimethylbenzene ND

629 111 ugSample 121019 0947 121019 2258 112-Dibromo-3-Chloropropane ND

315 415 ugSample 121019 0947 121019 2258 112-Dibromoethane (EDB) ND

629 629 ugSample 121019 0947 121019 2258 112-dichloro-11-difluoroethane ND

315 554 ugSample 121019 0947 121019 2258 112-Dichlorobenzene ND

315 529 ugSample 121019 0947 121019 2258 112-Dichloroethane ND

315 315 ugSample 121019 0947 121019 2258 112-Dichloropropane ND

315 654 ugSample 121019 0947 121019 2258 1135-Trimethylbenzene ND

315 541 ugSample 121019 0947 121019 2258 113-Dichlorobenzene ND

315 352 ugSample 121019 0947 121019 2258 113-Dichloropropane ND

315 629 ugSample 121019 0947 121019 2258 114-Dichlorobenzene ND

629 642 ugSample 121019 0947 121019 2258 11-Chloro-11-difluoroethane ND

629 629 ugSample 121019 0947 121019 2258 122-dichloro-11-difluoroethylmethyl

ether

ND

315 919 ugSample 121019 0947 121019 2258 122-Dichloropropane ND

126 201 ugSample 121019 0947 121019 2258 12-Butanone (MEK) ND

629 931 ugSample 121019 0947 121019 2258 12-chloro-111444-hexafluoro-2-but

ene

ND

629 629 ugSample 121019 0947 121019 2258 12-Chloro-111-Trifluoroethane ND

315 592 ugSample 121019 0947 121019 2258 12-Chlorotoluene ND

126 289 ugSample 121019 0947 121019 2258 12-Hexanone ND

275 275 ugSample 121019 0947 121019 2258 12-MTP as HFPO 1460

315 654 ugSample 121019 0947 121019 2258 14-Chlorotoluene ND

315 843 ugSample 121019 0947 121019 2258 14-Isopropyltoluene ND

126 201 ugSample 121019 0947 121019 2258 14-Methyl-2-pentanone (MIBK) ND

126 743 ugSample 121019 0947 121019 2258 1Acetone ND

315 604 ugSample 121019 0947 121019 2258 1Benzene ND

315 441 ugSample 121019 0947 121019 2258 1Bromobenzene ND

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Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-1Client Sample ID Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromochloromethane ND 315 705 ugSample 121019 0947 121019 2258 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

315 541 ugSample 121019 0947 121019 2258 1Bromodichloromethane ND

315 957 ugSample 121019 0947 121019 2258 1Bromoform ND

629 365 ugSample 121019 0947 121019 2258 1Bromomethane ND

315 780 ugSample 121019 0947 121019 2258 1Carbon disulfide ND

315 415 ugSample 121019 0947 121019 2258 1Carbon tetrachloride ND

923 923 ugSample 121019 0947 121019 2258 1Carbonyl Difluoride ND

315 453 ugSample 121019 0947 121019 2258 1Chlorobenzene ND

315 680 ugSample 121019 0947 121019 2258 1Chlorodibromomethane ND

629 138 ugSample 121019 0947 121019 2258 1Chloroethane ND

315 365 ugSample 121019 0947 121019 2258 1Chloroform ND

629 262 ugSample 121019 0947 121019 2258 1Chloromethane ND

315 252 ugSample 121019 0947 121019 2258 1cis-12-Dichloroethene ND

315 541 ugSample 121019 0947 121019 2258 1cis-13-Dichloropropene ND

315 302 ugSample 121019 0947 121019 2258 1Dibromomethane ND

629 111 ugSample 121019 0947 121019 2258 1Dichlorodifluoromethane ND

315 516 ugSample 121019 0947 121019 2258 1Ethylbenzene ND

315 315 ugSample 121019 0947 121019 2258 1Heptafluoropropyl 1222-tetrafluoroethyl ether

149

315 831 ugSample 121019 0947 121019 2258 1Hexachlorobutadiene ND

302 302 ugSample 121019 0947 121019 2258 1HFPO dimer methyl ester as

HFPO-DA

ND

315 441 ugSample 121019 0947 121019 2258 1Isopropylbenzene ND

629 516 ugSample 121019 0947 121019 2258 1mp-Xylene ND

315 201 ugSample 121019 0947 121019 2258 1Methylene Chloride 373

315 151 ugSample 121019 0947 121019 2258 1Naphthalene ND

315 806 ugSample 121019 0947 121019 2258 1n-Butylbenzene ND

315 680 ugSample 121019 0947 121019 2258 1n-Propylbenzene ND

315 327 ugSample 121019 0947 121019 2258 1o-Xylene ND

315 617 ugSample 121019 0947 121019 2258 1sec-Butylbenzene ND

315 680 ugSample 121019 0947 121019 2258 1Styrene ND

315 554 ugSample 121019 0947 121019 2258 1tert-Butylbenzene ND

315 415 ugSample 121019 0947 121019 2258 1Tetrachloroethene ND

315 579 ugSample 121019 0947 121019 2258 1Toluene ND

315 327 ugSample 121019 0947 121019 2258 1trans-12-Dichloroethene ND

315 111 ugSample 121019 0947 121019 2258 1trans-13-Dichloropropene ND

315 227 ugSample 121019 0947 121019 2258 1Trichloroethene ND

629 604 ugSample 121019 0947 121019 2258 1Trichlorofluoromethane ND

629 151 ugSample 121019 0947 121019 2258 1Vinyl chloride ND

Unknown 318 T J ugSample 113 121019 0947 121019 2258 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1121019 2258121019 0947T JUnknown 626 ugSample 118

12-Dichloroethane-d4 (Surr) 121 70 - 160 121019 0947 121019 2258 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 106 121019 0947 121019 2258 157 - 152

Dibromofluoromethane (Surr) 109 121019 0947 121019 2258 162 - 134

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Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-1Client Sample ID Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)

Toluene-d8 (Surr) 89 71 - 139 121019 0947 121019 2258 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 98200 13400 6710 ugSample 121019 0947 122319 1201 2

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2770 1260 ugSample 121019 0947 122419 0117 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 40 HF SU 121719 1337 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17557-2Client Sample ID Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 305 402 ugSample 121019 0947 121019 2234 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

610 610 ugSample 121019 0947 121019 2234 111133-Pentafluorobutane ND

305 439 ugSample 121019 0947 121019 2234 1111-Trichloroethane ND

610 121 ugSample 121019 0947 121019 2234 1111-Trifluoro-22-dichloroethane ND

610 610 ugSample 121019 0947 121019 2234 1111-Trifluoroethane ND

305 585 ugSample 121019 0947 121019 2234 11122-Tetrachloroethane ND

610 341 ugSample 121019 0947 121019 2234 1112-Trichloro-122-trifluoroethane ND

610 610 ugSample 121019 0947 121019 2234 1112-trichloro-1-fluoroethane ND

305 317 ugSample 121019 0947 121019 2234 1112-Trichloroethane ND

610 305 ugSample 121019 0947 121019 2234 111-Dichloro-1-fluoroethane ND

610 610 ugSample 121019 0947 121019 2234 111-dichloro-22-difluoroethane ND

610 610 ugSample 121019 0947 121019 2234 111-dichloro-22-difluoroethene ND

305 366 ugSample 121019 0947 121019 2234 111-Dichloroethane ND

305 451 ugSample 121019 0947 121019 2234 111-Dichloroethene ND

305 329 ugSample 121019 0947 121019 2234 111-Dichloropropene ND

610 610 ugSample 121019 0947 121019 2234 111-Difluoroethene ND

610 610 ugSample 121019 0947 121019 2234 1122-trichloro-11-difluoroethane ND

305 976 ugSample 121019 0947 121019 2234 1123-Trichlorobenzene ND

305 756 ugSample 121019 0947 121019 2234 1123-Trichloropropane ND

305 102 ugSample 121019 0947 121019 2234 1124-Trichlorobenzene ND

305 634 ugSample 121019 0947 121019 2234 1124-Trimethylbenzene ND

610 107 ugSample 121019 0947 121019 2234 112-Dibromo-3-Chloropropane ND

305 402 ugSample 121019 0947 121019 2234 112-Dibromoethane (EDB) ND

610 610 ugSample 121019 0947 121019 2234 112-dichloro-11-difluoroethane ND

305 537 ugSample 121019 0947 121019 2234 112-Dichlorobenzene ND

305 512 ugSample 121019 0947 121019 2234 112-Dichloroethane ND

305 305 ugSample 121019 0947 121019 2234 112-Dichloropropane ND

305 634 ugSample 121019 0947 121019 2234 1135-Trimethylbenzene ND

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Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-2Client Sample ID Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

13-Dichlorobenzene ND 305 524 ugSample 121019 0947 121019 2234 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

305 341 ugSample 121019 0947 121019 2234 113-Dichloropropane ND

305 610 ugSample 121019 0947 121019 2234 114-Dichlorobenzene ND

610 622 ugSample 121019 0947 121019 2234 11-Chloro-11-difluoroethane ND

610 610 ugSample 121019 0947 121019 2234 122-dichloro-11-difluoroethylmethyl

ether

ND

305 890 ugSample 121019 0947 121019 2234 122-Dichloropropane ND

122 195 ugSample 121019 0947 121019 2234 12-Butanone (MEK) ND

610 903 ugSample 121019 0947 121019 2234 12-chloro-111444-hexafluoro-2-but

ene

ND

610 610 ugSample 121019 0947 121019 2234 12-Chloro-111-Trifluoroethane ND

305 573 ugSample 121019 0947 121019 2234 12-Chlorotoluene ND

122 281 ugSample 121019 0947 121019 2234 12-Hexanone ND

266 266 ugSample 121019 0947 121019 2234 12-MTP as HFPO 2430 E

305 634 ugSample 121019 0947 121019 2234 14-Chlorotoluene ND

305 817 ugSample 121019 0947 121019 2234 14-Isopropyltoluene ND

122 195 ugSample 121019 0947 121019 2234 14-Methyl-2-pentanone (MIBK) ND

122 720 ugSample 121019 0947 121019 2234 1Acetone ND

305 585 ugSample 121019 0947 121019 2234 1Benzene ND

305 427 ugSample 121019 0947 121019 2234 1Bromobenzene ND

305 683 ugSample 121019 0947 121019 2234 1Bromochloromethane ND

305 524 ugSample 121019 0947 121019 2234 1Bromodichloromethane ND

305 927 ugSample 121019 0947 121019 2234 1Bromoform ND

610 354 ugSample 121019 0947 121019 2234 1Bromomethane ND

305 756 ugSample 121019 0947 121019 2234 1Carbon disulfide ND

305 402 ugSample 121019 0947 121019 2234 1Carbon tetrachloride ND

894 894 ugSample 121019 0947 121019 2234 1Carbonyl Difluoride ND

305 439 ugSample 121019 0947 121019 2234 1Chlorobenzene ND

305 659 ugSample 121019 0947 121019 2234 1Chlorodibromomethane ND

610 134 ugSample 121019 0947 121019 2234 1Chloroethane ND

305 354 ugSample 121019 0947 121019 2234 1Chloroform ND

610 254 ugSample 121019 0947 121019 2234 1Chloromethane ND

305 244 ugSample 121019 0947 121019 2234 1cis-12-Dichloroethene ND

305 524 ugSample 121019 0947 121019 2234 1cis-13-Dichloropropene ND

305 293 ugSample 121019 0947 121019 2234 1Dibromomethane ND

610 107 ugSample 121019 0947 121019 2234 1Dichlorodifluoromethane ND

305 500 ugSample 121019 0947 121019 2234 1Ethylbenzene ND

305 305 ugSample 121019 0947 121019 2234 1Heptafluoropropyl 1222-tetrafluoroethyl ether

953

305 805 ugSample 121019 0947 121019 2234 1Hexachlorobutadiene ND

293 293 ugSample 121019 0947 121019 2234 1HFPO dimer methyl ester as

HFPO-DA

ND

305 427 ugSample 121019 0947 121019 2234 1Isopropylbenzene ND

610 500 ugSample 121019 0947 121019 2234 1mp-Xylene ND

305 195 ugSample 121019 0947 121019 2234 1Methylene Chloride 211 J

305 146 ugSample 121019 0947 121019 2234 1Naphthalene ND

305 781 ugSample 121019 0947 121019 2234 1n-Butylbenzene ND

305 659 ugSample 121019 0947 121019 2234 1n-Propylbenzene ND

Eurofins TestAmerica Knoxville

12302019Page 16 of 706111

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-2Client Sample ID Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

o-Xylene ND 305 317 ugSample 121019 0947 121019 2234 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

305 598 ugSample 121019 0947 121019 2234 1sec-Butylbenzene ND

305 659 ugSample 121019 0947 121019 2234 1Styrene ND

305 537 ugSample 121019 0947 121019 2234 1tert-Butylbenzene ND

305 402 ugSample 121019 0947 121019 2234 1Tetrachloroethene ND

305 561 ugSample 121019 0947 121019 2234 1Toluene ND

305 317 ugSample 121019 0947 121019 2234 1trans-12-Dichloroethene ND

305 107 ugSample 121019 0947 121019 2234 1trans-13-Dichloropropene ND

305 220 ugSample 121019 0947 121019 2234 1Trichloroethene ND

610 585 ugSample 121019 0947 121019 2234 1Trichlorofluoromethane ND

610 146 ugSample 121019 0947 121019 2234 1Vinyl chloride ND

Unknown 596 T J ugSample 113 121019 0947 121019 2234 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1121019 2234121019 0947T JUnknown 1110 ugSample 118

1121019 2234121019 0947T JUnknown 351 ugSample 122

12-Dichloroethane-d4 (Surr) 121 70 - 160 121019 0947 121019 2234 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 107 121019 0947 121019 2234 157 - 152

Dibromofluoromethane (Surr) 106 121019 0947 121019 2234 162 - 134

Toluene-d8 (Surr) 89 121019 0947 121019 2234 171 - 139

Method 8260B - Volatile Organic Compounds (GCMS) - DLRL MDL

2-MTP as HFPO 2230 533 533 ugSample 121019 0947 121119 1629 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

12-Dichloroethane-d4 (Surr) 112 70 - 160 121019 0947 121119 1629 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 108 121019 0947 121119 1629 157 - 152

Dibromofluoromethane (Surr) 97 121019 0947 121119 1629 162 - 134

Toluene-d8 (Surr) 96 121019 0947 121119 1629 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 32600 6500 3250 ugSample 121019 0947 121919 2322 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2680 1220 ugSample 121019 0947 122419 0140 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 40 HF SU 121719 1337 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Eurofins TestAmerica Knoxville

12302019Page 17 of 706112

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-3Client Sample ID Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 304 401 ugSample 121019 0947 121019 2209 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

608 608 ugSample 121019 0947 121019 2209 111133-Pentafluorobutane ND

304 438 ugSample 121019 0947 121019 2209 1111-Trichloroethane ND

608 120 ugSample 121019 0947 121019 2209 1111-Trifluoro-22-dichloroethane ND

608 608 ugSample 121019 0947 121019 2209 1111-Trifluoroethane ND

304 583 ugSample 121019 0947 121019 2209 11122-Tetrachloroethane ND

608 340 ugSample 121019 0947 121019 2209 1112-Trichloro-122-trifluoroethane ND

608 608 ugSample 121019 0947 121019 2209 1112-trichloro-1-fluoroethane ND

304 316 ugSample 121019 0947 121019 2209 1112-Trichloroethane ND

608 304 ugSample 121019 0947 121019 2209 111-Dichloro-1-fluoroethane ND

608 608 ugSample 121019 0947 121019 2209 111-dichloro-22-difluoroethane ND

608 608 ugSample 121019 0947 121019 2209 111-dichloro-22-difluoroethene ND

304 365 ugSample 121019 0947 121019 2209 111-Dichloroethane ND

304 450 ugSample 121019 0947 121019 2209 111-Dichloroethene ND

304 328 ugSample 121019 0947 121019 2209 111-Dichloropropene ND

608 608 ugSample 121019 0947 121019 2209 111-Difluoroethene ND

608 608 ugSample 121019 0947 121019 2209 1122-trichloro-11-difluoroethane ND

304 972 ugSample 121019 0947 121019 2209 1123-Trichlorobenzene ND

304 753 ugSample 121019 0947 121019 2209 1123-Trichloropropane ND

304 102 ugSample 121019 0947 121019 2209 1124-Trichlorobenzene ND

304 632 ugSample 121019 0947 121019 2209 1124-Trimethylbenzene ND

608 107 ugSample 121019 0947 121019 2209 112-Dibromo-3-Chloropropane ND

304 401 ugSample 121019 0947 121019 2209 112-Dibromoethane (EDB) ND

608 608 ugSample 121019 0947 121019 2209 112-dichloro-11-difluoroethane ND

304 535 ugSample 121019 0947 121019 2209 112-Dichlorobenzene ND

304 510 ugSample 121019 0947 121019 2209 112-Dichloroethane ND

304 304 ugSample 121019 0947 121019 2209 112-Dichloropropane ND

304 632 ugSample 121019 0947 121019 2209 1135-Trimethylbenzene ND

304 523 ugSample 121019 0947 121019 2209 113-Dichlorobenzene ND

304 340 ugSample 121019 0947 121019 2209 113-Dichloropropane ND

304 608 ugSample 121019 0947 121019 2209 114-Dichlorobenzene ND

608 620 ugSample 121019 0947 121019 2209 11-Chloro-11-difluoroethane ND

608 608 ugSample 121019 0947 121019 2209 122-dichloro-11-difluoroethylmethyl

ether

ND

304 887 ugSample 121019 0947 121019 2209 122-Dichloropropane ND

122 194 ugSample 121019 0947 121019 2209 12-Butanone (MEK) ND

608 899 ugSample 121019 0947 121019 2209 12-chloro-111444-hexafluoro-2-but

ene

ND

608 608 ugSample 121019 0947 121019 2209 12-Chloro-111-Trifluoroethane ND

304 571 ugSample 121019 0947 121019 2209 12-Chlorotoluene ND

122 280 ugSample 121019 0947 121019 2209 12-Hexanone ND

266 266 ugSample 121019 0947 121019 2209 12-MTP as HFPO 2130 E

304 632 ugSample 121019 0947 121019 2209 14-Chlorotoluene ND

304 814 ugSample 121019 0947 121019 2209 14-Isopropyltoluene ND

122 194 ugSample 121019 0947 121019 2209 14-Methyl-2-pentanone (MIBK) ND

122 717 ugSample 121019 0947 121019 2209 1Acetone ND

304 583 ugSample 121019 0947 121019 2209 1Benzene ND

304 425 ugSample 121019 0947 121019 2209 1Bromobenzene ND

Eurofins TestAmerica Knoxville

12302019Page 18 of 706113

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-3Client Sample ID Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromochloromethane ND 304 681 ugSample 121019 0947 121019 2209 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

304 523 ugSample 121019 0947 121019 2209 1Bromodichloromethane ND

304 924 ugSample 121019 0947 121019 2209 1Bromoform ND

608 352 ugSample 121019 0947 121019 2209 1Bromomethane ND

304 753 ugSample 121019 0947 121019 2209 1Carbon disulfide ND

304 401 ugSample 121019 0947 121019 2209 1Carbon tetrachloride ND

894 894 ugSample 121019 0947 121019 2209 1Carbonyl Difluoride ND

304 438 ugSample 121019 0947 121019 2209 1Chlorobenzene ND

304 656 ugSample 121019 0947 121019 2209 1Chlorodibromomethane ND

608 134 ugSample 121019 0947 121019 2209 1Chloroethane ND

304 352 ugSample 121019 0947 121019 2209 1Chloroform ND

608 253 ugSample 121019 0947 121019 2209 1Chloromethane ND

304 243 ugSample 121019 0947 121019 2209 1cis-12-Dichloroethene ND

304 523 ugSample 121019 0947 121019 2209 1cis-13-Dichloropropene ND

304 292 ugSample 121019 0947 121019 2209 1Dibromomethane ND

608 107 ugSample 121019 0947 121019 2209 1Dichlorodifluoromethane ND

304 498 ugSample 121019 0947 121019 2209 1Ethylbenzene ND

304 304 ugSample 121019 0947 121019 2209 1Heptafluoropropyl 1222-tetrafluoroethyl ether

334

304 802 ugSample 121019 0947 121019 2209 1Hexachlorobutadiene ND

292 292 ugSample 121019 0947 121019 2209 1HFPO dimer methyl ester as

HFPO-DA

ND

304 425 ugSample 121019 0947 121019 2209 1Isopropylbenzene ND

608 498 ugSample 121019 0947 121019 2209 1mp-Xylene ND

304 194 ugSample 121019 0947 121019 2209 1Methylene Chloride 202 J

304 146 ugSample 121019 0947 121019 2209 1Naphthalene ND

304 778 ugSample 121019 0947 121019 2209 1n-Butylbenzene ND

304 656 ugSample 121019 0947 121019 2209 1n-Propylbenzene ND

304 316 ugSample 121019 0947 121019 2209 1o-Xylene ND

304 595 ugSample 121019 0947 121019 2209 1sec-Butylbenzene ND

304 656 ugSample 121019 0947 121019 2209 1Styrene ND

304 535 ugSample 121019 0947 121019 2209 1tert-Butylbenzene ND

304 401 ugSample 121019 0947 121019 2209 1Tetrachloroethene ND

304 559 ugSample 121019 0947 121019 2209 1Toluene ND

304 316 ugSample 121019 0947 121019 2209 1trans-12-Dichloroethene ND

304 107 ugSample 121019 0947 121019 2209 1trans-13-Dichloropropene ND

304 219 ugSample 121019 0947 121019 2209 1Trichloroethene ND

608 583 ugSample 121019 0947 121019 2209 1Trichlorofluoromethane ND

608 146 ugSample 121019 0947 121019 2209 1Vinyl chloride ND

Unknown 411 T J ugSample 113 121019 0947 121019 2209 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1121019 2209121019 0947T JUnknown 747 ugSample 118

12-Dichloroethane-d4 (Surr) 114 70 - 160 121019 0947 121019 2209 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 107 121019 0947 121019 2209 157 - 152

Dibromofluoromethane (Surr) 103 121019 0947 121019 2209 162 - 134

Eurofins TestAmerica Knoxville

12302019Page 19 of 706114

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-3Client Sample ID Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)

Toluene-d8 (Surr) 92 71 - 139 121019 0947 121019 2209 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Method 8260B - Volatile Organic Compounds (GCMS) - DLRL MDL

2-MTP as HFPO 1970 531 531 ugSample 121019 0947 121119 1653 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

12-Dichloroethane-d4 (Surr) 110 70 - 160 121019 0947 121119 1653 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 108 121019 0947 121119 1653 157 - 152

Dibromofluoromethane (Surr) 98 121019 0947 121119 1653 162 - 134

Toluene-d8 (Surr) 95 121019 0947 121119 1653 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 13600 6480 3240 ugSample 121019 0947 122019 0030 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2670 1220 ugSample 121019 0947 122419 0248 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 50 HF SU 121719 1337 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17557-4Client Sample ID Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 297 393 ugSample 121019 0947 121019 2145 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

595 595 ugSample 121019 0947 121019 2145 111133-Pentafluorobutane ND

297 428 ugSample 121019 0947 121019 2145 1111-Trichloroethane ND

595 118 ugSample 121019 0947 121019 2145 1111-Trifluoro-22-dichloroethane ND

595 595 ugSample 121019 0947 121019 2145 1111-Trifluoroethane ND

297 571 ugSample 121019 0947 121019 2145 11122-Tetrachloroethane ND

595 333 ugSample 121019 0947 121019 2145 1112-Trichloro-122-trifluoroethane ND

595 595 ugSample 121019 0947 121019 2145 1112-trichloro-1-fluoroethane ND

297 309 ugSample 121019 0947 121019 2145 1112-Trichloroethane ND

595 297 ugSample 121019 0947 121019 2145 111-Dichloro-1-fluoroethane ND

595 595 ugSample 121019 0947 121019 2145 111-dichloro-22-difluoroethane ND

595 595 ugSample 121019 0947 121019 2145 111-dichloro-22-difluoroethene ND

297 357 ugSample 121019 0947 121019 2145 111-Dichloroethane ND

297 440 ugSample 121019 0947 121019 2145 111-Dichloroethene ND

297 321 ugSample 121019 0947 121019 2145 111-Dichloropropene ND

595 595 ugSample 121019 0947 121019 2145 111-Difluoroethene ND

595 595 ugSample 121019 0947 121019 2145 1122-trichloro-11-difluoroethane ND

297 952 ugSample 121019 0947 121019 2145 1123-Trichlorobenzene ND

297 738 ugSample 121019 0947 121019 2145 1123-Trichloropropane ND

Eurofins TestAmerica Knoxville

12302019Page 20 of 706115

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-4Client Sample ID Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

124-Trichlorobenzene ND 297 100 ugSample 121019 0947 121019 2145 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

297 619 ugSample 121019 0947 121019 2145 1124-Trimethylbenzene ND

595 105 ugSample 121019 0947 121019 2145 112-Dibromo-3-Chloropropane ND

297 393 ugSample 121019 0947 121019 2145 112-Dibromoethane (EDB) ND

595 595 ugSample 121019 0947 121019 2145 112-dichloro-11-difluoroethane ND

297 524 ugSample 121019 0947 121019 2145 112-Dichlorobenzene ND

297 500 ugSample 121019 0947 121019 2145 112-Dichloroethane ND

297 297 ugSample 121019 0947 121019 2145 112-Dichloropropane ND

297 619 ugSample 121019 0947 121019 2145 1135-Trimethylbenzene ND

297 512 ugSample 121019 0947 121019 2145 113-Dichlorobenzene ND

297 333 ugSample 121019 0947 121019 2145 113-Dichloropropane ND

297 595 ugSample 121019 0947 121019 2145 114-Dichlorobenzene ND

595 607 ugSample 121019 0947 121019 2145 11-Chloro-11-difluoroethane ND

595 595 ugSample 121019 0947 121019 2145 122-dichloro-11-difluoroethylmethyl

ether

ND

297 869 ugSample 121019 0947 121019 2145 122-Dichloropropane ND

119 190 ugSample 121019 0947 121019 2145 12-Butanone (MEK) ND

595 881 ugSample 121019 0947 121019 2145 12-chloro-111444-hexafluoro-2-but

ene

ND

595 595 ugSample 121019 0947 121019 2145 12-Chloro-111-Trifluoroethane ND

297 559 ugSample 121019 0947 121019 2145 12-Chlorotoluene ND

119 274 ugSample 121019 0947 121019 2145 12-Hexanone ND

259 259 ugSample 121019 0947 121019 2145 12-MTP as HFPO 2560 E

297 619 ugSample 121019 0947 121019 2145 14-Chlorotoluene ND

297 797 ugSample 121019 0947 121019 2145 14-Isopropyltoluene ND

119 190 ugSample 121019 0947 121019 2145 14-Methyl-2-pentanone (MIBK) ND

119 702 ugSample 121019 0947 121019 2145 1Acetone ND

297 571 ugSample 121019 0947 121019 2145 1Benzene ND

297 416 ugSample 121019 0947 121019 2145 1Bromobenzene ND

297 666 ugSample 121019 0947 121019 2145 1Bromochloromethane ND

297 512 ugSample 121019 0947 121019 2145 1Bromodichloromethane ND

297 904 ugSample 121019 0947 121019 2145 1Bromoform ND

595 345 ugSample 121019 0947 121019 2145 1Bromomethane ND

297 738 ugSample 121019 0947 121019 2145 1Carbon disulfide ND

297 393 ugSample 121019 0947 121019 2145 1Carbon tetrachloride ND

872 872 ugSample 121019 0947 121019 2145 1Carbonyl Difluoride ND

297 428 ugSample 121019 0947 121019 2145 1Chlorobenzene ND

297 643 ugSample 121019 0947 121019 2145 1Chlorodibromomethane ND

595 131 ugSample 121019 0947 121019 2145 1Chloroethane ND

297 345 ugSample 121019 0947 121019 2145 1Chloroform ND

595 247 ugSample 121019 0947 121019 2145 1Chloromethane ND

297 238 ugSample 121019 0947 121019 2145 1cis-12-Dichloroethene ND

297 512 ugSample 121019 0947 121019 2145 1cis-13-Dichloropropene ND

297 286 ugSample 121019 0947 121019 2145 1Dibromomethane ND

595 105 ugSample 121019 0947 121019 2145 1Dichlorodifluoromethane ND

297 488 ugSample 121019 0947 121019 2145 1Ethylbenzene ND

297 297 ugSample 121019 0947 121019 2145 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

Eurofins TestAmerica Knoxville

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Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-4Client Sample ID Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Hexachlorobutadiene ND 297 785 ugSample 121019 0947 121019 2145 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

285 285 ugSample 121019 0947 121019 2145 1HFPO dimer methyl ester as

HFPO-DA

ND

297 416 ugSample 121019 0947 121019 2145 1Isopropylbenzene ND

595 488 ugSample 121019 0947 121019 2145 1mp-Xylene ND

297 190 ugSample 121019 0947 121019 2145 1Methylene Chloride 200 J

297 143 ugSample 121019 0947 121019 2145 1Naphthalene ND

297 762 ugSample 121019 0947 121019 2145 1n-Butylbenzene ND

297 643 ugSample 121019 0947 121019 2145 1n-Propylbenzene ND

297 309 ugSample 121019 0947 121019 2145 1o-Xylene ND

297 583 ugSample 121019 0947 121019 2145 1sec-Butylbenzene ND

297 643 ugSample 121019 0947 121019 2145 1Styrene ND

297 524 ugSample 121019 0947 121019 2145 1tert-Butylbenzene ND

297 393 ugSample 121019 0947 121019 2145 1Tetrachloroethene ND

297 547 ugSample 121019 0947 121019 2145 1Toluene ND

297 309 ugSample 121019 0947 121019 2145 1trans-12-Dichloroethene ND

297 105 ugSample 121019 0947 121019 2145 1trans-13-Dichloropropene ND

297 214 ugSample 121019 0947 121019 2145 1Trichloroethene ND

595 571 ugSample 121019 0947 121019 2145 1Trichlorofluoromethane ND

595 143 ugSample 121019 0947 121019 2145 1Vinyl chloride ND

Butanoic acid heptafluoro- sodium

salt

545 T J N ugSample 113 2218-54-4 121019 0947 121019 2145 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1121019 2145121019 0947T J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-8761 ugSample 118

12-Dichloroethane-d4 (Surr) 118 70 - 160 121019 0947 121019 2145 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 110 121019 0947 121019 2145 157 - 152

Dibromofluoromethane (Surr) 107 121019 0947 121019 2145 162 - 134

Toluene-d8 (Surr) 91 121019 0947 121019 2145 171 - 139

Method 8260B - Volatile Organic Compounds (GCMS) - DLRL MDL

2-MTP as HFPO 2330 650 650 ugSample 121019 0947 121119 1718 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

12-Dichloroethane-d4 (Surr) 112 70 - 160 121019 0947 121119 1718 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 107 121019 0947 121119 1718 157 - 152

Dibromofluoromethane (Surr) 98 121019 0947 121119 1718 162 - 134

Toluene-d8 (Surr) 95 121019 0947 121119 1718 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 5730 J 6350 3170 ugSample 121019 0947 122019 0053 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2620 1190 ugSample 121019 0947 122419 0356 20Hydrogen Fluoride ND

Eurofins TestAmerica Knoxville

12302019Page 22 of 706117

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-4Client Sample ID Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

General ChemistryRL MDL

pH 50 HF SU 121719 1337 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17557-5Client Sample ID Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 310 409 ugSample 121019 0947 121019 2120 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

619 619 ugSample 121019 0947 121019 2120 111133-Pentafluorobutane ND

310 446 ugSample 121019 0947 121019 2120 1111-Trichloroethane ND

619 123 ugSample 121019 0947 121019 2120 1111-Trifluoro-22-dichloroethane ND

619 619 ugSample 121019 0947 121019 2120 1111-Trifluoroethane ND

310 595 ugSample 121019 0947 121019 2120 11122-Tetrachloroethane ND

619 347 ugSample 121019 0947 121019 2120 1112-Trichloro-122-trifluoroethane ND

619 619 ugSample 121019 0947 121019 2120 1112-trichloro-1-fluoroethane ND

310 322 ugSample 121019 0947 121019 2120 1112-Trichloroethane ND

619 310 ugSample 121019 0947 121019 2120 111-Dichloro-1-fluoroethane ND

619 619 ugSample 121019 0947 121019 2120 111-dichloro-22-difluoroethane ND

619 619 ugSample 121019 0947 121019 2120 111-dichloro-22-difluoroethene ND

310 372 ugSample 121019 0947 121019 2120 111-Dichloroethane ND

310 458 ugSample 121019 0947 121019 2120 111-Dichloroethene ND

310 334 ugSample 121019 0947 121019 2120 111-Dichloropropene ND

619 619 ugSample 121019 0947 121019 2120 111-Difluoroethene ND

619 619 ugSample 121019 0947 121019 2120 1122-trichloro-11-difluoroethane ND

310 991 ugSample 121019 0947 121019 2120 1123-Trichlorobenzene ND

310 768 ugSample 121019 0947 121019 2120 1123-Trichloropropane ND

310 104 ugSample 121019 0947 121019 2120 1124-Trichlorobenzene ND

310 644 ugSample 121019 0947 121019 2120 1124-Trimethylbenzene ND

619 109 ugSample 121019 0947 121019 2120 112-Dibromo-3-Chloropropane ND

310 409 ugSample 121019 0947 121019 2120 112-Dibromoethane (EDB) ND

619 619 ugSample 121019 0947 121019 2120 112-dichloro-11-difluoroethane ND

310 545 ugSample 121019 0947 121019 2120 112-Dichlorobenzene ND

310 520 ugSample 121019 0947 121019 2120 112-Dichloroethane ND

310 310 ugSample 121019 0947 121019 2120 112-Dichloropropane ND

310 644 ugSample 121019 0947 121019 2120 1135-Trimethylbenzene ND

310 533 ugSample 121019 0947 121019 2120 113-Dichlorobenzene ND

310 347 ugSample 121019 0947 121019 2120 113-Dichloropropane ND

310 619 ugSample 121019 0947 121019 2120 114-Dichlorobenzene ND

619 632 ugSample 121019 0947 121019 2120 11-Chloro-11-difluoroethane ND

619 619 ugSample 121019 0947 121019 2120 122-dichloro-11-difluoroethylmethyl

ether

ND

310 904 ugSample 121019 0947 121019 2120 122-Dichloropropane ND

124 198 ugSample 121019 0947 121019 2120 12-Butanone (MEK) ND

619 917 ugSample 121019 0947 121019 2120 12-chloro-111444-hexafluoro-2-but

ene

ND

Eurofins TestAmerica Knoxville

12302019Page 23 of 706118

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-5Client Sample ID Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

2-Chloro-111-Trifluoroethane ND 619 619 ugSample 121019 0947 121019 2120 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

310 582 ugSample 121019 0947 121019 2120 12-Chlorotoluene ND

124 285 ugSample 121019 0947 121019 2120 12-Hexanone ND

271 271 ugSample 121019 0947 121019 2120 12-MTP as HFPO 2070

310 644 ugSample 121019 0947 121019 2120 14-Chlorotoluene ND

310 830 ugSample 121019 0947 121019 2120 14-Isopropyltoluene ND

124 198 ugSample 121019 0947 121019 2120 14-Methyl-2-pentanone (MIBK) ND

124 731 ugSample 121019 0947 121019 2120 1Acetone ND

310 595 ugSample 121019 0947 121019 2120 1Benzene ND

310 434 ugSample 121019 0947 121019 2120 1Bromobenzene ND

310 694 ugSample 121019 0947 121019 2120 1Bromochloromethane ND

310 533 ugSample 121019 0947 121019 2120 1Bromodichloromethane ND

310 941 ugSample 121019 0947 121019 2120 1Bromoform ND

619 359 ugSample 121019 0947 121019 2120 1Bromomethane ND

310 768 ugSample 121019 0947 121019 2120 1Carbon disulfide ND

310 409 ugSample 121019 0947 121019 2120 1Carbon tetrachloride ND

909 909 ugSample 121019 0947 121019 2120 1Carbonyl Difluoride ND

310 446 ugSample 121019 0947 121019 2120 1Chlorobenzene ND

310 669 ugSample 121019 0947 121019 2120 1Chlorodibromomethane ND

619 136 ugSample 121019 0947 121019 2120 1Chloroethane ND

310 359 ugSample 121019 0947 121019 2120 1Chloroform ND

619 258 ugSample 121019 0947 121019 2120 1Chloromethane ND

310 248 ugSample 121019 0947 121019 2120 1cis-12-Dichloroethene ND

310 533 ugSample 121019 0947 121019 2120 1cis-13-Dichloropropene ND

310 297 ugSample 121019 0947 121019 2120 1Dibromomethane ND

619 109 ugSample 121019 0947 121019 2120 1Dichlorodifluoromethane ND

310 508 ugSample 121019 0947 121019 2120 1Ethylbenzene ND

310 310 ugSample 121019 0947 121019 2120 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

310 818 ugSample 121019 0947 121019 2120 1Hexachlorobutadiene ND

297 297 ugSample 121019 0947 121019 2120 1HFPO dimer methyl ester as

HFPO-DA

ND

310 434 ugSample 121019 0947 121019 2120 1Isopropylbenzene ND

619 508 ugSample 121019 0947 121019 2120 1mp-Xylene ND

310 198 ugSample 121019 0947 121019 2120 1Methylene Chloride ND

310 149 ugSample 121019 0947 121019 2120 1Naphthalene ND

310 793 ugSample 121019 0947 121019 2120 1n-Butylbenzene ND

310 669 ugSample 121019 0947 121019 2120 1n-Propylbenzene ND

310 322 ugSample 121019 0947 121019 2120 1o-Xylene ND

310 607 ugSample 121019 0947 121019 2120 1sec-Butylbenzene ND

310 669 ugSample 121019 0947 121019 2120 1Styrene ND

310 545 ugSample 121019 0947 121019 2120 1tert-Butylbenzene ND

310 409 ugSample 121019 0947 121019 2120 1Tetrachloroethene ND

310 570 ugSample 121019 0947 121019 2120 1Toluene ND

310 322 ugSample 121019 0947 121019 2120 1trans-12-Dichloroethene ND

310 109 ugSample 121019 0947 121019 2120 1trans-13-Dichloropropene ND

310 223 ugSample 121019 0947 121019 2120 1Trichloroethene ND

619 595 ugSample 121019 0947 121019 2120 1Trichlorofluoromethane ND

Eurofins TestAmerica Knoxville

12302019Page 24 of 706119

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-5Client Sample ID Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Vinyl chloride ND 619 149 ugSample 121019 0947 121019 2120 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Propene hexafluoro- 445 T J N ugSample 113 116-15-4 121019 0947 121019 2120 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1121019 2120121019 0947T JUnknown 454 ugSample 118

12-Dichloroethane-d4 (Surr) 117 70 - 160 121019 0947 121019 2120 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 108 121019 0947 121019 2120 157 - 152

Dibromofluoromethane (Surr) 105 121019 0947 121019 2120 162 - 134

Toluene-d8 (Surr) 91 121019 0947 121019 2120 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 5710 J 6610 3300 ugSample 121019 0947 122019 0116 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2730 1240 ugSample 121019 0947 122419 0419 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 50 HF SU 121719 1337 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17557-6Client Sample ID Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 301 397 ugSample 121019 0947 121019 2056 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

601 601 ugSample 121019 0947 121019 2056 111133-Pentafluorobutane ND

301 433 ugSample 121019 0947 121019 2056 1111-Trichloroethane ND

601 119 ugSample 121019 0947 121019 2056 1111-Trifluoro-22-dichloroethane ND

601 601 ugSample 121019 0947 121019 2056 1111-Trifluoroethane ND

301 577 ugSample 121019 0947 121019 2056 11122-Tetrachloroethane ND

601 337 ugSample 121019 0947 121019 2056 1112-Trichloro-122-trifluoroethane ND

601 601 ugSample 121019 0947 121019 2056 1112-trichloro-1-fluoroethane ND

301 313 ugSample 121019 0947 121019 2056 1112-Trichloroethane ND

601 301 ugSample 121019 0947 121019 2056 111-Dichloro-1-fluoroethane ND

601 601 ugSample 121019 0947 121019 2056 111-dichloro-22-difluoroethane ND

601 601 ugSample 121019 0947 121019 2056 111-dichloro-22-difluoroethene ND

301 361 ugSample 121019 0947 121019 2056 111-Dichloroethane ND

301 445 ugSample 121019 0947 121019 2056 111-Dichloroethene ND

301 325 ugSample 121019 0947 121019 2056 111-Dichloropropene ND

601 601 ugSample 121019 0947 121019 2056 111-Difluoroethene ND

601 601 ugSample 121019 0947 121019 2056 1122-trichloro-11-difluoroethane ND

301 962 ugSample 121019 0947 121019 2056 1123-Trichlorobenzene ND

301 745 ugSample 121019 0947 121019 2056 1123-Trichloropropane ND

Eurofins TestAmerica Knoxville

12302019Page 25 of 706120

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-6Client Sample ID Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

124-Trichlorobenzene ND 301 101 ugSample 121019 0947 121019 2056 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

301 625 ugSample 121019 0947 121019 2056 1124-Trimethylbenzene ND

601 106 ugSample 121019 0947 121019 2056 112-Dibromo-3-Chloropropane ND

301 397 ugSample 121019 0947 121019 2056 112-Dibromoethane (EDB) ND

601 601 ugSample 121019 0947 121019 2056 112-dichloro-11-difluoroethane ND

301 529 ugSample 121019 0947 121019 2056 112-Dichlorobenzene ND

301 505 ugSample 121019 0947 121019 2056 112-Dichloroethane ND

301 301 ugSample 121019 0947 121019 2056 112-Dichloropropane ND

301 625 ugSample 121019 0947 121019 2056 1135-Trimethylbenzene ND

301 517 ugSample 121019 0947 121019 2056 113-Dichlorobenzene ND

301 337 ugSample 121019 0947 121019 2056 113-Dichloropropane ND

301 601 ugSample 121019 0947 121019 2056 114-Dichlorobenzene ND

601 613 ugSample 121019 0947 121019 2056 11-Chloro-11-difluoroethane ND

601 601 ugSample 121019 0947 121019 2056 122-dichloro-11-difluoroethylmethyl

ether

ND

301 878 ugSample 121019 0947 121019 2056 122-Dichloropropane ND

120 192 ugSample 121019 0947 121019 2056 12-Butanone (MEK) ND

601 890 ugSample 121019 0947 121019 2056 12-chloro-111444-hexafluoro-2-but

ene

ND

601 601 ugSample 121019 0947 121019 2056 12-Chloro-111-Trifluoroethane ND

301 565 ugSample 121019 0947 121019 2056 12-Chlorotoluene ND

120 277 ugSample 121019 0947 121019 2056 12-Hexanone ND

263 263 ugSample 121019 0947 121019 2056 12-MTP as HFPO 2550 E

301 625 ugSample 121019 0947 121019 2056 14-Chlorotoluene ND

301 806 ugSample 121019 0947 121019 2056 14-Isopropyltoluene ND

120 192 ugSample 121019 0947 121019 2056 14-Methyl-2-pentanone (MIBK) ND

120 709 ugSample 121019 0947 121019 2056 1Acetone ND

301 577 ugSample 121019 0947 121019 2056 1Benzene ND

301 421 ugSample 121019 0947 121019 2056 1Bromobenzene ND

301 673 ugSample 121019 0947 121019 2056 1Bromochloromethane ND

301 517 ugSample 121019 0947 121019 2056 1Bromodichloromethane ND

301 914 ugSample 121019 0947 121019 2056 1Bromoform ND

601 349 ugSample 121019 0947 121019 2056 1Bromomethane ND

301 745 ugSample 121019 0947 121019 2056 1Carbon disulfide ND

301 397 ugSample 121019 0947 121019 2056 1Carbon tetrachloride ND

879 879 ugSample 121019 0947 121019 2056 1Carbonyl Difluoride ND

301 433 ugSample 121019 0947 121019 2056 1Chlorobenzene ND

301 649 ugSample 121019 0947 121019 2056 1Chlorodibromomethane ND

601 132 ugSample 121019 0947 121019 2056 1Chloroethane ND

301 349 ugSample 121019 0947 121019 2056 1Chloroform ND

601 250 ugSample 121019 0947 121019 2056 1Chloromethane ND

301 240 ugSample 121019 0947 121019 2056 1cis-12-Dichloroethene ND

301 517 ugSample 121019 0947 121019 2056 1cis-13-Dichloropropene ND

301 289 ugSample 121019 0947 121019 2056 1Dibromomethane ND

601 106 ugSample 121019 0947 121019 2056 1Dichlorodifluoromethane ND

301 493 ugSample 121019 0947 121019 2056 1Ethylbenzene ND

301 301 ugSample 121019 0947 121019 2056 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

Eurofins TestAmerica Knoxville

12302019Page 26 of 706121

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-6Client Sample ID Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Hexachlorobutadiene ND 301 794 ugSample 121019 0947 121019 2056 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

289 289 ugSample 121019 0947 121019 2056 1HFPO dimer methyl ester as

HFPO-DA

ND

301 421 ugSample 121019 0947 121019 2056 1Isopropylbenzene ND

601 493 ugSample 121019 0947 121019 2056 1mp-Xylene ND

301 192 ugSample 121019 0947 121019 2056 1Methylene Chloride ND

301 144 ugSample 121019 0947 121019 2056 1Naphthalene ND

301 770 ugSample 121019 0947 121019 2056 1n-Butylbenzene ND

301 649 ugSample 121019 0947 121019 2056 1n-Propylbenzene ND

301 313 ugSample 121019 0947 121019 2056 1o-Xylene ND

301 589 ugSample 121019 0947 121019 2056 1sec-Butylbenzene ND

301 649 ugSample 121019 0947 121019 2056 1Styrene ND

301 529 ugSample 121019 0947 121019 2056 1tert-Butylbenzene ND

301 397 ugSample 121019 0947 121019 2056 1Tetrachloroethene ND

301 553 ugSample 121019 0947 121019 2056 1Toluene ND

301 313 ugSample 121019 0947 121019 2056 1trans-12-Dichloroethene ND

301 106 ugSample 121019 0947 121019 2056 1trans-13-Dichloropropene ND

301 216 ugSample 121019 0947 121019 2056 1Trichloroethene ND

601 577 ugSample 121019 0947 121019 2056 1Trichlorofluoromethane ND

601 144 ugSample 121019 0947 121019 2056 1Vinyl chloride ND

Propene hexafluoro- 408 T J N ugSample 113 116-15-4 121019 0947 121019 2056 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1121019 2056121019 0947T JUnknown 418 ugSample 118

12-Dichloroethane-d4 (Surr) 116 70 - 160 121019 0947 121019 2056 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 121019 0947 121019 2056 157 - 152

Dibromofluoromethane (Surr) 104 121019 0947 121019 2056 162 - 134

Toluene-d8 (Surr) 92 121019 0947 121019 2056 171 - 139

Method 8260B - Volatile Organic Compounds (GCMS) - DLRL MDL

2-MTP as HFPO 2350 657 657 ugSample 121019 0947 121119 1742 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

12-Dichloroethane-d4 (Surr) 112 70 - 160 121019 0947 121119 1742 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 107 121019 0947 121119 1742 157 - 152

Dibromofluoromethane (Surr) 98 121019 0947 121119 1742 162 - 134

Toluene-d8 (Surr) 96 121019 0947 121119 1742 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 4990 J 6410 3210 ugSample 121019 0947 122019 0138 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2650 1200 ugSample 121019 0947 122419 0442 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 50 HF SU 121719 1339 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Eurofins TestAmerica Knoxville

12302019Page 27 of 706122

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17557-1ProjectSite VEN Stack - MM-18

Method 8260B - Volatile Organic Compounds (GCMS)Prep MeOH Prep

2501112-Tetrachloroethane ugSample

Analyte UnitsMDLRL

0330

50011133-Pentafluorobutane ugSample0500

250111-Trichloroethane ugSample0360

500111-Trifluoro-22-dichloroethane ugSample0990

500111-Trifluoroethane ugSample0500

2501122-Tetrachloroethane ugSample0480

500112-Trichloro-122-trifluoroethane ugSample0280

500112-trichloro-1-fluoroethane ugSample0500

250112-Trichloroethane ugSample0260

50011-Dichloro-1-fluoroethane ugSample250

50011-dichloro-22-difluoroethane ugSample0500

50011-dichloro-22-difluoroethene ugSample0500

25011-Dichloroethane ugSample0300

25011-Dichloroethene ugSample0370

25011-Dichloropropene ugSample0270

50011-Difluoroethene ugSample500

500122-trichloro-11-difluoroethane ugSample0500

250123-Trichlorobenzene ugSample0800

250123-Trichloropropane ugSample0620

250124-Trichlorobenzene ugSample0840

250124-Trimethylbenzene ugSample0520

50012-Dibromo-3-Chloropropane ugSample0880

25012-Dibromoethane (EDB) ugSample0330

50012-dichloro-11-difluoroethane ugSample0500

25012-Dichlorobenzene ugSample0440

25012-Dichloroethane ugSample0420

25012-Dichloropropane ugSample0250

250135-Trimethylbenzene ugSample0520

25013-Dichlorobenzene ugSample0430

25013-Dichloropropane ugSample0280

25014-Dichlorobenzene ugSample0500

5001-Chloro-11-difluoroethane ugSample0510

50022-dichloro-11-difluoroethylmethyl ether ugSample0500

25022-Dichloropropane ugSample0730

1002-Butanone (MEK) ugSample160

5002-chloro-111444-hexafluoro-2-butene ugSample0740

5002-Chloro-111-Trifluoroethane ugSample0500

2502-Chlorotoluene ugSample0470

1002-Hexanone ugSample230

2502-MTP as HFPO ugSample250

2504-Chlorotoluene ugSample0520

2504-Isopropyltoluene ugSample0670

1004-Methyl-2-pentanone (MIBK) ugSample160

100Acetone ugSample590

250Benzene ugSample0480

250Bromobenzene ugSample0350

250Bromochloromethane ugSample0560

250Bromodichloromethane ugSample0430

250Bromoform ugSample0760

500Bromomethane ugSample290

250Carbon disulfide ugSample0620

250Carbon tetrachloride ugSample0330

Eurofins TestAmerica Knoxville

12302019Page 28 of 706123

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17557-1ProjectSite VEN Stack - MM-18

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)Prep MeOH Prep

100Carbonyl Difluoride ugSample

Analyte UnitsMDLRL

100

250Chlorobenzene ugSample0360

250Chlorodibromomethane ugSample0540

500Chloroethane ugSample110

250Chloroform ugSample0290

500Chloromethane ugSample208

250cis-12-Dichloroethene ugSample0200

250cis-13-Dichloropropene ugSample0430

250Dibromomethane ugSample0240

500Dichlorodifluoromethane ugSample0880

250Ethylbenzene ugSample0410

250Heptafluoropropyl 1222-tetrafluoroethyl ether ugSample250

250Hexachlorobutadiene ugSample0660

250HFPO dimer methyl ester as HFPO-DA ugSample250

250Isopropylbenzene ugSample0350

500mp-Xylene ugSample0410

250Methylene Chloride ugSample160

250Naphthalene ugSample120

250n-Butylbenzene ugSample0640

250n-Propylbenzene ugSample0540

250o-Xylene ugSample0260

250sec-Butylbenzene ugSample0490

250Styrene ugSample0540

250tert-Butylbenzene ugSample0440

250Tetrachloroethene ugSample0330

250Toluene ugSample0460

250trans-12-Dichloroethene ugSample0260

250trans-13-Dichloropropene ugSample0880

250Trichloroethene ugSample0180

500Trichlorofluoromethane ugSample0480

500Vinyl chloride ugSample120

Method 9056 - Anions Ion ChromatographyPrep MeOH Prep

110Hydrogen Fluoride ugSample

Analyte UnitsMDLRL

500

1000Total Fluorine ugSample500

Eurofins TestAmerica Knoxville

12302019Page 29 of 706124

ANALYTICAL REPORTJob Number 140-17462-1

Job Description VEN MM-18 Field QC

Contract Number LBIO-67048

ForChemours Company FC LLC The

co AECOMSabre Building Suite 300

4051 Ogletown RoadNewark DE 19713

Attention Michael Aucoin

_____________________________________________

Approved for releaseCourtney M AdkinsProject Manager II12232019 302 PM

Courtney M Adkins Project Manager II5815 Middlebrook Pike Knoxville TN 37921

(865)291-3000 courtneyadkinstestamericainccom

12232019

This report may not be reproduced except in full and with written approval from the laboratory For questions please contact the Project Manager atthe e-mail address or telephone number listed on this page

The test results in this report relate only to the samples as received by the laboratory and will meet all requirements of the methodology with anyexceptions noted This report shall not be reproduced except in full without the express written approval of the laboratory All questions should bedirected to the Eurofins TestAmerica Project Manager

This report has been electronically signed and authorized by the signatory Electronic signature is intended to be the legally binding equivalent of atraditionally handwritten signature

Eurofins TestAmerica Knoxville

5815 Middlebrook Pike Knoxville TN 37921

Tel (865) 291-3000 Fax (865) 584-4315 wwwtestamericainccom

12232019Page 1 of 820125

Table of ContentsCover Title Page 1

Data Summaries 5

Definitions 5

Method Summary 6

Sample Summary 7

Case Narrative 8

QC Association 10

Client Sample Results 13

Default Detection Limits 35

Surrogate Summary 37

QC Sample Results 39

Chronicle 46

Certification Summary 54

Manual Integration Summary 56

Organic Sample Data 69

GCMS VOA 69

Method 8260B 69Method 8260B QC Summary 70Method 8260B Sample Data 83Standards Data 179

Method 8260B ICAL Data 179Method 8260B CCAL Data 281

Raw QC Data 329Method 8260B Tune Data 329Method 8260B Blank Data 345Method 8260B LCSLCSD Data 355

12232019Page 2 of 820126

Table of ContentsMethod 8260B MSMSD Data 368

Method 8260B Run Logs 376Method 8260B Prep Data 389

HPLCIC 392

Method 9056 392Method 9056 QC Summary 393Method 9056 Sample Data 396Standards Data 423

Method 9056 ICAL Data 423Method 9056 CCAL Data 450

Raw QC Data 493Method 9056 Blank Data 493Method 9056 LCSLCSD Data 519

Method 9056 Run Logs 525Method 9056 Prep Data 539

Method 9056A Total Halogens 541Method 9056A Total Halogens QC Summary 542Method 9056A Total Halogens Sample Data 545Standards Data 580

Method 9056A Total Halogens ICAL Data 580Method 9056A Total Halogens CCAL Data 605

Raw QC Data 624Method 9056A Total Halogens Blank Data 624Method 9056A Total Halogens LCSLCSD Data 641

Method 9056A Total Halogens Run Logs 649Method 9056A Total Halogens Prep Data 658

12232019Page 3 of 820127

Table of ContentsLCMS 662

Method DV-LC-0012 662Method DV-LC-0012 QC Summary 663Method DV-LC-0012 Sample Data 668Standards Data 704

Method DV-LC-0012 ICAL Data 704Method DV-LC-0012 CCAL Data 751

Raw QC Data 763Method DV-LC-0012 Tune Data 763Method DV-LC-0012 Blank Data 768Method DV-LC-0012 LCSLCSD Data 772

Method DV-LC-0012 Run Logs 785Method DV-LC-0012 Prep Data 788

Inorganic Sample Data 796

General Chemistry Data 796

Gen Chem Cover Page 797

Gen Chem Sample Data 798

Gen Chem QC Data 807Gen Chem ICVCCV 807

Gen Chem MDL 808

Gen Chem Analysis Run Log 809

Gen Chem Prep Data 810

Gen Chem Raw Data 811

Shipping and Receiving Documents 813

Client Chain of Custody 814

12232019Page 4 of 820128

DefinitionsGlossaryJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Qualifiers

GCMS VOAQualifier Description

LCS or LCSD is outside acceptance limits

Qualifier

B Compound was found in the blank and sample

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

GCMS VOA TICsQualifier Description

J Indicates an Estimated Value for TICs

Qualifier

N Presumptive evidence of material

T Result is a tentatively identified compound (TIC) and an estimated value

HPLCICQualifier Description

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

Qualifier

LCMSQualifier Description

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

Qualifier

General ChemistryQualifier Description

HF Field parameter with a holding time of 15 minutes Test performed by laboratory at clients request

Qualifier

GlossaryThese commonly used abbreviations may or may not be present in this report

curren Listed under the D column to designate that the result is reported on a dry weight basis

Abbreviation

R Percent Recovery

CFL Contains Free Liquid

CNF Contains No Free Liquid

DER Duplicate Error Ratio (normalized absolute difference)

Dil Fac Dilution Factor

DL Detection Limit (DoDDOE)

DL RA RE IN Indicates a Dilution Re-analysis Re-extraction or additional Initial metalsanion analysis of the sample

DLC Decision Level Concentration (Radiochemistry)

EDL Estimated Detection Limit (Dioxin)

LOD Limit of Detection (DoDDOE)

LOQ Limit of Quantitation (DoDDOE)

MDA Minimum Detectable Activity (Radiochemistry)

MDC Minimum Detectable Concentration (Radiochemistry)

MDL Method Detection Limit

ML Minimum Level (Dioxin)

NC Not Calculated

ND Not Detected at the reporting limit (or MDL or EDL if shown)

PQL Practical Quantitation Limit

QC Quality Control

RER Relative Error Ratio (Radiochemistry)

RL Reporting Limit or Requested Limit (Radiochemistry)

RPD Relative Percent Difference a measure of the relative difference between two points

TEF Toxicity Equivalent Factor (Dioxin)

TEQ Toxicity Equivalent Quotient (Dioxin)

Eurofins TestAmerica Knoxville

12232019Page 5 of 820129

Method SummaryJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Method Method Description LaboratoryProtocol

SW8468260B Volatile Organic Compounds (GCMS) TAL KNX

SW8469056 Anions Ion Chromatography TAL KNX

SW8468321A PFOA and PFOS TAL DEN

SW8469041A pH TAL KNX

SW8465050 Bomb Preparation Method for Solid Waste TAL KNX

NoneMeOH Prep Methanol Impinger Preparation TAL KNX

TAL SOPNone Leaching Procedure TAL DEN

Protocol References

None = None

SW846 = Test Methods For Evaluating Solid Waste PhysicalChemical Methods Third Edition November 1986 And Its Updates

TAL SOP = TestAmerica Laboratories Standard Operating Procedure

Laboratory References

TAL DEN = Eurofins TestAmerica Denver 4955 Yarrow Street Arvada CO 80002 TEL (303)736-0100

TAL KNX = Eurofins TestAmerica Knoxville 5815 Middlebrook Pike Knoxville TN 37921 TEL (865)291-3000

Eurofins TestAmerica Knoxville

12232019Page 6 of 820130

Sample SummaryJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID Client Sample ID ReceivedCollectedMatrix Asset ID

140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1

BT

Air 112219 0000 112519 0800

140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2

BT

Air 112219 0000 112519 0800

140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3

BT

Air 112219 0000 112519 0800

140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4

BT

Air 112219 0000 112519 0800

140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5

BT

Air 112219 0000 112519 0800

140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6

BT

Air 112219 0000 112519 0800

140-17462-7 A-5786 QC MEOH RB Air 112219 0000 112519 0800

140-17462-8 A-5787 QC MEOH TB Air 112219 0000 112519 0800

140-17462-9 A-5788 QC MEOH PB Air 112219 0000 112519 0800

Eurofins TestAmerica Knoxville

12232019Page 7 of 820131

Job Narrative140-17462-1

Sample Receipt

The samples were received on November 25 2019 at 800 AM in good condition and properly preserved The temperature of the cooler at receipt was 33ordm C

GCMS VOA

Impinger Sample Preparation and Analysis Impinger samples were analyzed for the volatile organic target analytes by purge and trap GCMS using Eurofins TestAmerica Knoxville standard operating procedure KNOX-MS-0015 based on the following method

middot SW-846 8260B ldquoVolatile Organic Compounds by Gas Chromatography Mass Spectrometry (GCMS)rdquo

Each sample is prepared by adding a known amount of sample to the purge water in a purge and trap vessel and spiking with internal standards surrogates and matrix spike analytes (as needed) Volatile compounds are introduced into the gas chromatograph by the purge and trap method The components are separated using the chromatograph and detected using a mass spectrometer which provides both qualitative and quantitative information

Impinger sample results were calculated using the following equation

Concentration μgsample = (C times DF times W times Vt) (Va)WhereC = On-column concentration μgLDF = Dilution factorW = Volume of water purged LVt = Methanol extract final volume μL Va = Volume of extract analyzed microL

Method 8260B The following analyte(s) recovered outside control limits but within marginal exceedance limits for the LCS associated with batch 140-35880 Trichlorofluoromethane This is not indicative of a systematic control problem because these were random marginal exceedances Qualified results have been reported

No additional analytical or quality issues were noted other than those described above or in the DefinitionsGlossary page

LCMS No analytical or quality issues were noted other than those described in the DefinitionsGlossary page

General Chemistry Total Chlorine The samples were prepared for total chlorine using SOP number KNOX-WC-0016 (based on ASTM Method E442 and SW-846 Method 5050) The sample is oxidized by combustion in an oxygen flask at atmospheric pressure or a bomb containing oxygen under pressure The liberated halogen compounds are absorbed primarily as halides in a sodium carbonatesodium bicarbonate buffer solution The combustion products are collected by repeated rinsing of the combustion apparatus and analyzed by ion chromatography in accordance with SOP KNOX- WC-0005 (based on SW-846 Method 9056) The results are calculated using the following equation

C = [(Ccom times Vcom) W] times 1000 gKg

WhereC = Concentration of analyte in the sample mgKgCcom = Concentration of analyte in the combustate mgLVcom = Total volume of combustate LW = Weight of sample combusted g

Anions in Impinger Solutions Anions are is determined in accordance to SOP KNOX-WC-0005 (based on methods 3000A and 9056) The samples were diluted a minimum of 120 in ion chromatography solvent buffer solution to reduce the methanol concentration before injection Buffer concentrate was added until the pH was 10 Samples are diluted with ion chromatography eluate solution to bring the concentrations within the calibration range when necessary Higher dilutions are applied as necessary

An aliquot of prepared sample is introduced into the ion chromatograph Anions are identified based on their retention times as compared to those of known standards Quantification is accomplished by measuring the peak response and comparing it to a calibration curve generated from known standards

12232019Page 8 of 820132

The pH of all samples were tested with pH paper QC consisted of initial CCV and LCS which also serve as initial calibration duplicate analysis for every 10 samples and closing CCV A certified thermometer was used to check the ambient temperature

No additional analytical or quality issues were noted other than those described above or in the DefinitionsGlossary page

Organic Prep No analytical or quality issues were noted other than those described in the DefinitionsGlossary page

No analytical or quality issues were noted other than those described in the DefinitionsGlossary page

12232019Page 9 of 820133

QC Association SummaryJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

GCMS VOA

Prep Batch 35705

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air MeOH Prep140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air MeOH Prep140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air MeOH Prep140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air MeOH Prep140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air MeOH Prep140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air MeOH Prep140-17462-7 A-5786 QC MEOH RB TotalNA

Air MeOH Prep140-17462-8 A-5787 QC MEOH TB TotalNA

Air MeOH Prep140-17462-9 A-5788 QC MEOH PB TotalNA

Air MeOH PrepMB 140-357052-A Method Blank TotalNA

Air MeOH PrepLCS 140-357051-A Lab Control Sample TotalNA

Air MeOH Prep140-17462-2 MS A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air MeOH Prep140-17462-2 MSD A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Analysis Batch 35880

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8260B 35705140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air 8260B 35705140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 8260B 35705140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air 8260B 35705140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air 8260B 35705140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air 8260B 35705140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air 8260B 35705140-17462-7 A-5786 QC MEOH RB TotalNA

Air 8260B 35705140-17462-8 A-5787 QC MEOH TB TotalNA

Air 8260B 35705140-17462-9 A-5788 QC MEOH PB TotalNA

Air 8260B 35705MB 140-357052-A Method Blank TotalNA

Air 8260B 35705LCS 140-357051-A Lab Control Sample TotalNA

Air 8260B 35705LCS 140-357051-A Lab Control Sample TotalNA

Air 8260B 35705140-17462-2 MS A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 8260B 35705140-17462-2 MSD A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

HPLCIC

Prep Batch 35705

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air MeOH Prep140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air MeOH Prep140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air MeOH Prep140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air MeOH Prep140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air MeOH Prep140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air MeOH Prep140-17462-7 A-5786 QC MEOH RB TotalNA

Air MeOH Prep140-17462-8 A-5787 QC MEOH TB TotalNA

Air MeOH Prep140-17462-9 A-5788 QC MEOH PB TotalNA

Air MeOH PrepMB 140-3570514-A Method Blank TotalNA

Air MeOH PrepMB 140-3570514-B Method Blank TotalNA

Air MeOH PrepLCS 140-3570515-A Lab Control Sample TotalNA

Air MeOH PrepLCS 140-3570515-B Lab Control Sample TotalNA

Air MeOH PrepLCSD 140-3570516-A Lab Control Sample Dup TotalNA

Air MeOH PrepLCSD 140-3570516-B Lab Control Sample Dup TotalNA

Eurofins TestAmerica Knoxville

12232019Page 10 of 820134

QC Association SummaryJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

HPLCIC

Prep Batch 35762

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 5050 35705140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air 5050 35705140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 5050 35705140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air 5050 35705140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air 5050 35705140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air 5050 35705140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air 5050 35705140-17462-7 A-5786 QC MEOH RB TotalNA

Air 5050 35705140-17462-8 A-5787 QC MEOH TB TotalNA

Air 5050 35705140-17462-9 A-5788 QC MEOH PB TotalNA

Air 5050 35705MB 140-3570514-B Method Blank TotalNA

Air 5050 35705LCS 140-3570515-B Lab Control Sample TotalNA

Air 5050 35705LCSD 140-3570516-B Lab Control Sample Dup TotalNA

Analysis Batch 36121

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35762140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air 9056 35762140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 9056 35762140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air 9056 35762140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air 9056 35762140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air 9056 35762140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air 9056 35762140-17462-7 A-5786 QC MEOH RB TotalNA

Air 9056 35762140-17462-8 A-5787 QC MEOH TB TotalNA

Air 9056 35762140-17462-9 A-5788 QC MEOH PB TotalNA

Air 9056 35762MB 140-3570514-B Method Blank TotalNA

Air 9056 35762LCS 140-3570515-B Lab Control Sample TotalNA

Air 9056 35762LCSD 140-3570516-B Lab Control Sample Dup TotalNA

Analysis Batch 36210

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35705140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air 9056 35705140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 9056 35705140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air 9056 35705140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air 9056 35705140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air 9056 35705140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air 9056 35705140-17462-7 A-5786 QC MEOH RB TotalNA

Air 9056 35705140-17462-8 A-5787 QC MEOH TB TotalNA

Air 9056 35705140-17462-9 A-5788 QC MEOH PB TotalNA

Air 9056 35705MB 140-3570514-A Method Blank TotalNA

Air 9056 35705LCS 140-3570515-A Lab Control Sample TotalNA

Air 9056 35705LCSD 140-3570516-A Lab Control Sample Dup TotalNA

LCMS

Analysis Batch 464589

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321ADLCK 280-46458913 Lab Control Sample TotalNA

Eurofins TestAmerica Knoxville

12232019Page 11 of 820135

QC Association SummaryJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

LCMS

Prep Batch 479505

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air None140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air None140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air None140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air None140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air None140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air None140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air None140-17462-7 A-5786 QC MEOH RB TotalNA

Air None140-17462-8 A-5787 QC MEOH TB TotalNA

Air None140-17462-9 A-5788 QC MEOH PB TotalNA

Air NoneMB 280-4795051-A Method Blank TotalNA

Air NoneLCS 280-4795052-A Lab Control Sample TotalNA

Air NoneLCSD 280-4795053-A Lab Control Sample Dup TotalNA

Analysis Batch 479931

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321A 479505140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air 8321A 479505140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 8321A 479505140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air 8321A 479505140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air 8321A 479505140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air 8321A 479505140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air 8321A 479505140-17462-7 A-5786 QC MEOH RB TotalNA

Air 8321A 479505140-17462-8 A-5787 QC MEOH TB TotalNA

Air 8321A 479505140-17462-9 A-5788 QC MEOH PB TotalNA

Air 8321A 479505MB 280-4795051-A Method Blank TotalNA

Air 8321A 479505LCS 280-4795052-A Lab Control Sample TotalNA

Air 8321A 479505LCSD 280-4795053-A Lab Control Sample Dup TotalNA

General Chemistry

Analysis Batch 36086

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9041A140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air 9041A140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 9041A140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air 9041A140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air 9041A140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air 9041A140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air 9041A140-17462-7 A-5786 QC MEOH RB TotalNA

Air 9041A140-17462-8 A-5787 QC MEOH TB TotalNA

Air 9041A140-17462-9 A-5788 QC MEOH PB TotalNA

Air 9041ALCS 140-360862 Lab Control Sample TotalNA

Eurofins TestAmerica Knoxville

12232019Page 12 of 820136

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-1Client Sample ID A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 287 379 ugSample 112919 1045 120619 1517 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

574 574 ugSample 112919 1045 120619 1517 111133-Pentafluorobutane ND

287 413 ugSample 112919 1045 120619 1517 1111-Trichloroethane ND

574 114 ugSample 112919 1045 120619 1517 1111-Trifluoro-22-dichloroethane ND

574 574 ugSample 112919 1045 120619 1517 1111-Trifluoroethane ND

287 551 ugSample 112919 1045 120619 1517 11122-Tetrachloroethane ND

574 321 ugSample 112919 1045 120619 1517 1112-Trichloro-122-trifluoroethane ND

574 574 ugSample 112919 1045 120619 1517 1112-trichloro-1-fluoroethane ND

287 298 ugSample 112919 1045 120619 1517 1112-Trichloroethane ND

574 287 ugSample 112919 1045 120619 1517 111-Dichloro-1-fluoroethane ND

574 574 ugSample 112919 1045 120619 1517 111-dichloro-22-difluoroethane ND

574 574 ugSample 112919 1045 120619 1517 111-dichloro-22-difluoroethene ND

287 344 ugSample 112919 1045 120619 1517 111-Dichloroethane ND

287 425 ugSample 112919 1045 120619 1517 111-Dichloroethene ND

287 310 ugSample 112919 1045 120619 1517 111-Dichloropropene ND

574 574 ugSample 112919 1045 120619 1517 111-Difluoroethene ND

574 574 ugSample 112919 1045 120619 1517 1122-trichloro-11-difluoroethane ND

287 918 ugSample 112919 1045 120619 1517 1123-Trichlorobenzene ND

287 712 ugSample 112919 1045 120619 1517 1123-Trichloropropane ND

287 964 ugSample 112919 1045 120619 1517 1124-Trichlorobenzene ND

287 597 ugSample 112919 1045 120619 1517 1124-Trimethylbenzene ND

574 101 ugSample 112919 1045 120619 1517 112-Dibromo-3-Chloropropane ND

287 379 ugSample 112919 1045 120619 1517 112-Dibromoethane (EDB) ND

574 574 ugSample 112919 1045 120619 1517 112-dichloro-11-difluoroethane ND

287 505 ugSample 112919 1045 120619 1517 112-Dichlorobenzene ND

287 482 ugSample 112919 1045 120619 1517 112-Dichloroethane ND

287 287 ugSample 112919 1045 120619 1517 112-Dichloropropane ND

287 597 ugSample 112919 1045 120619 1517 1135-Trimethylbenzene ND

287 494 ugSample 112919 1045 120619 1517 113-Dichlorobenzene ND

287 321 ugSample 112919 1045 120619 1517 113-Dichloropropane ND

287 574 ugSample 112919 1045 120619 1517 114-Dichlorobenzene ND

574 585 ugSample 112919 1045 120619 1517 11-Chloro-11-difluoroethane ND

574 574 ugSample 112919 1045 120619 1517 122-dichloro-11-difluoroethylmethyl

ether

ND

287 838 ugSample 112919 1045 120619 1517 122-Dichloropropane ND

115 184 ugSample 112919 1045 120619 1517 12-Butanone (MEK) ND

574 849 ugSample 112919 1045 120619 1517 12-chloro-111444-hexafluoro-2-but

ene

ND

574 574 ugSample 112919 1045 120619 1517 12-Chloro-111-Trifluoroethane ND

287 540 ugSample 112919 1045 120619 1517 12-Chlorotoluene ND

115 264 ugSample 112919 1045 120619 1517 12-Hexanone ND

251 251 ugSample 112919 1045 120619 1517 12-MTP as HFPO ND

287 597 ugSample 112919 1045 120619 1517 14-Chlorotoluene ND

287 769 ugSample 112919 1045 120619 1517 14-Isopropyltoluene ND

115 184 ugSample 112919 1045 120619 1517 14-Methyl-2-pentanone (MIBK) ND

115 677 ugSample 112919 1045 120619 1517 1Acetone ND

287 551 ugSample 112919 1045 120619 1517 1Benzene ND

287 402 ugSample 112919 1045 120619 1517 1Bromobenzene ND

Eurofins TestAmerica Knoxville

12232019Page 13 of 820137

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-1Client Sample ID A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromochloromethane ND 287 643 ugSample 112919 1045 120619 1517 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

287 494 ugSample 112919 1045 120619 1517 1Bromodichloromethane ND

287 872 ugSample 112919 1045 120619 1517 1Bromoform ND

574 333 ugSample 112919 1045 120619 1517 1Bromomethane ND

287 712 ugSample 112919 1045 120619 1517 1Carbon disulfide ND

287 379 ugSample 112919 1045 120619 1517 1Carbon tetrachloride ND

843 843 ugSample 112919 1045 120619 1517 1Carbonyl Difluoride ND

287 413 ugSample 112919 1045 120619 1517 1Chlorobenzene ND

287 620 ugSample 112919 1045 120619 1517 1Chlorodibromomethane ND

574 126 ugSample 112919 1045 120619 1517 1Chloroethane ND

287 333 ugSample 112919 1045 120619 1517 1Chloroform ND

574 239 ugSample 112919 1045 120619 1517 1Chloromethane ND

287 230 ugSample 112919 1045 120619 1517 1cis-12-Dichloroethene ND

287 494 ugSample 112919 1045 120619 1517 1cis-13-Dichloropropene ND

287 275 ugSample 112919 1045 120619 1517 1Dibromomethane ND

574 101 ugSample 112919 1045 120619 1517 1Dichlorodifluoromethane ND

287 471 ugSample 112919 1045 120619 1517 1Ethylbenzene ND

287 287 ugSample 112919 1045 120619 1517 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

287 758 ugSample 112919 1045 120619 1517 1Hexachlorobutadiene ND

275 275 ugSample 112919 1045 120619 1517 1HFPO dimer methyl ester as

HFPO-DA

ND

287 402 ugSample 112919 1045 120619 1517 1Isopropylbenzene ND

574 471 ugSample 112919 1045 120619 1517 1mp-Xylene ND

287 184 ugSample 112919 1045 120619 1517 1Methylene Chloride ND

287 138 ugSample 112919 1045 120619 1517 1Naphthalene ND

287 735 ugSample 112919 1045 120619 1517 1n-Butylbenzene ND

287 620 ugSample 112919 1045 120619 1517 1n-Propylbenzene ND

287 298 ugSample 112919 1045 120619 1517 1o-Xylene ND

287 562 ugSample 112919 1045 120619 1517 1sec-Butylbenzene ND

287 620 ugSample 112919 1045 120619 1517 1Styrene ND

287 505 ugSample 112919 1045 120619 1517 1tert-Butylbenzene ND

287 379 ugSample 112919 1045 120619 1517 1Tetrachloroethene ND

287 528 ugSample 112919 1045 120619 1517 1Toluene ND

287 298 ugSample 112919 1045 120619 1517 1trans-12-Dichloroethene ND

287 101 ugSample 112919 1045 120619 1517 1trans-13-Dichloropropene ND

287 207 ugSample 112919 1045 120619 1517 1Trichloroethene ND

574 551 ugSample 112919 1045 120619 1517 1Trichlorofluoromethane ND

574 138 ugSample 112919 1045 120619 1517 1Vinyl chloride ND

Tentatively Identified Compound None ugSample 112919 1045 120619 1517 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1045 120619 1517 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 112919 1045 120619 1517 157 - 152

Dibromofluoromethane (Surr) 104 112919 1045 120619 1517 162 - 134

Toluene-d8 (Surr) 97 112919 1045 120619 1517 171 - 139

Eurofins TestAmerica Knoxville

12232019Page 14 of 820138

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-1Client Sample ID A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 11800 6120 3060 ugSample 112919 1045 121319 2153 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2530 1150 ugSample 112919 1045 121819 1319 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1037 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 130 50 - 200 120419 1005 120819 1037 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-2Client Sample ID A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 299 394 ugSample 112919 1045 120619 1542 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

598 598 ugSample 112919 1045 120619 1542 111133-Pentafluorobutane ND

299 430 ugSample 112919 1045 120619 1542 1111-Trichloroethane ND

598 118 ugSample 112919 1045 120619 1542 1111-Trifluoro-22-dichloroethane ND

598 598 ugSample 112919 1045 120619 1542 1111-Trifluoroethane ND

299 574 ugSample 112919 1045 120619 1542 11122-Tetrachloroethane ND

598 335 ugSample 112919 1045 120619 1542 1112-Trichloro-122-trifluoroethane ND

598 598 ugSample 112919 1045 120619 1542 1112-trichloro-1-fluoroethane ND

299 311 ugSample 112919 1045 120619 1542 1112-Trichloroethane ND

598 299 ugSample 112919 1045 120619 1542 111-Dichloro-1-fluoroethane ND

598 598 ugSample 112919 1045 120619 1542 111-dichloro-22-difluoroethane ND

598 598 ugSample 112919 1045 120619 1542 111-dichloro-22-difluoroethene ND

299 359 ugSample 112919 1045 120619 1542 111-Dichloroethane ND

299 442 ugSample 112919 1045 120619 1542 111-Dichloroethene ND

299 323 ugSample 112919 1045 120619 1542 111-Dichloropropene ND

598 598 ugSample 112919 1045 120619 1542 111-Difluoroethene ND

598 598 ugSample 112919 1045 120619 1542 1122-trichloro-11-difluoroethane ND

299 956 ugSample 112919 1045 120619 1542 1123-Trichlorobenzene ND

299 741 ugSample 112919 1045 120619 1542 1123-Trichloropropane ND

299 100 ugSample 112919 1045 120619 1542 1124-Trichlorobenzene ND

299 621 ugSample 112919 1045 120619 1542 1124-Trimethylbenzene ND

598 105 ugSample 112919 1045 120619 1542 112-Dibromo-3-Chloropropane ND

299 394 ugSample 112919 1045 120619 1542 112-Dibromoethane (EDB) ND

598 598 ugSample 112919 1045 120619 1542 112-dichloro-11-difluoroethane ND

299 526 ugSample 112919 1045 120619 1542 112-Dichlorobenzene ND

299 502 ugSample 112919 1045 120619 1542 112-Dichloroethane ND

Eurofins TestAmerica Knoxville

12232019Page 15 of 820139

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-2Client Sample ID A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

12-Dichloropropane ND 299 299 ugSample 112919 1045 120619 1542 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

299 621 ugSample 112919 1045 120619 1542 1135-Trimethylbenzene ND

299 514 ugSample 112919 1045 120619 1542 113-Dichlorobenzene ND

299 335 ugSample 112919 1045 120619 1542 113-Dichloropropane ND

299 598 ugSample 112919 1045 120619 1542 114-Dichlorobenzene ND

598 610 ugSample 112919 1045 120619 1542 11-Chloro-11-difluoroethane ND

598 598 ugSample 112919 1045 120619 1542 122-dichloro-11-difluoroethylmethyl

ether

ND

299 872 ugSample 112919 1045 120619 1542 122-Dichloropropane ND

120 191 ugSample 112919 1045 120619 1542 12-Butanone (MEK) ND

598 884 ugSample 112919 1045 120619 1542 12-chloro-111444-hexafluoro-2-but

ene

ND

598 598 ugSample 112919 1045 120619 1542 12-Chloro-111-Trifluoroethane ND

299 562 ugSample 112919 1045 120619 1542 12-Chlorotoluene ND

120 275 ugSample 112919 1045 120619 1542 12-Hexanone ND

261 261 ugSample 112919 1045 120619 1542 12-MTP as HFPO ND

299 621 ugSample 112919 1045 120619 1542 14-Chlorotoluene ND

299 801 ugSample 112919 1045 120619 1542 14-Isopropyltoluene ND

120 191 ugSample 112919 1045 120619 1542 14-Methyl-2-pentanone (MIBK) ND

120 705 ugSample 112919 1045 120619 1542 1Acetone ND

299 574 ugSample 112919 1045 120619 1542 1Benzene ND

299 418 ugSample 112919 1045 120619 1542 1Bromobenzene ND

299 669 ugSample 112919 1045 120619 1542 1Bromochloromethane ND

299 514 ugSample 112919 1045 120619 1542 1Bromodichloromethane ND

299 908 ugSample 112919 1045 120619 1542 1Bromoform ND

598 347 ugSample 112919 1045 120619 1542 1Bromomethane ND

299 741 ugSample 112919 1045 120619 1542 1Carbon disulfide ND

299 394 ugSample 112919 1045 120619 1542 1Carbon tetrachloride ND

879 879 ugSample 112919 1045 120619 1542 1Carbonyl Difluoride ND

299 430 ugSample 112919 1045 120619 1542 1Chlorobenzene ND

299 645 ugSample 112919 1045 120619 1542 1Chlorodibromomethane ND

598 131 ugSample 112919 1045 120619 1542 1Chloroethane ND

299 347 ugSample 112919 1045 120619 1542 1Chloroform ND

598 249 ugSample 112919 1045 120619 1542 1Chloromethane ND

299 239 ugSample 112919 1045 120619 1542 1cis-12-Dichloroethene ND

299 514 ugSample 112919 1045 120619 1542 1cis-13-Dichloropropene ND

299 287 ugSample 112919 1045 120619 1542 1Dibromomethane ND

598 105 ugSample 112919 1045 120619 1542 1Dichlorodifluoromethane ND

299 490 ugSample 112919 1045 120619 1542 1Ethylbenzene ND

299 299 ugSample 112919 1045 120619 1542 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

299 789 ugSample 112919 1045 120619 1542 1Hexachlorobutadiene ND

287 287 ugSample 112919 1045 120619 1542 1HFPO dimer methyl ester as

HFPO-DA

ND

299 418 ugSample 112919 1045 120619 1542 1Isopropylbenzene ND

598 490 ugSample 112919 1045 120619 1542 1mp-Xylene ND

299 191 ugSample 112919 1045 120619 1542 1Methylene Chloride ND

299 143 ugSample 112919 1045 120619 1542 1Naphthalene ND

Eurofins TestAmerica Knoxville

12232019Page 16 of 820140

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-2Client Sample ID A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

n-Butylbenzene ND 299 765 ugSample 112919 1045 120619 1542 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

299 645 ugSample 112919 1045 120619 1542 1n-Propylbenzene ND

299 311 ugSample 112919 1045 120619 1542 1o-Xylene ND

299 586 ugSample 112919 1045 120619 1542 1sec-Butylbenzene ND

299 645 ugSample 112919 1045 120619 1542 1Styrene ND

299 526 ugSample 112919 1045 120619 1542 1tert-Butylbenzene ND

299 394 ugSample 112919 1045 120619 1542 1Tetrachloroethene ND

299 550 ugSample 112919 1045 120619 1542 1Toluene ND

299 311 ugSample 112919 1045 120619 1542 1trans-12-Dichloroethene ND

299 105 ugSample 112919 1045 120619 1542 1trans-13-Dichloropropene ND

299 215 ugSample 112919 1045 120619 1542 1Trichloroethene ND

598 574 ugSample 112919 1045 120619 1542 1Trichlorofluoromethane ND

598 143 ugSample 112919 1045 120619 1542 1Vinyl chloride ND

Cyclohexane 433 T J N ugSample 442 110-82-7 112919 1045 120619 1542 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1045 120619 1542 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1045 120619 1542 157 - 152

Dibromofluoromethane (Surr) 105 112919 1045 120619 1542 162 - 134

Toluene-d8 (Surr) 96 112919 1045 120619 1542 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 14800 6370 3190 ugSample 112919 1045 121319 2214 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2630 1200 ugSample 112919 1045 121819 1340 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1040 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 131 50 - 200 120419 1005 120819 1040 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-3Client Sample ID A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 291 384 ugSample 112919 1045 120619 1606 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

582 582 ugSample 112919 1045 120619 1606 111133-Pentafluorobutane ND

Eurofins TestAmerica Knoxville

12232019Page 17 of 820141

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-3Client Sample ID A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

111-Trichloroethane ND 291 419 ugSample 112919 1045 120619 1606 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

582 115 ugSample 112919 1045 120619 1606 1111-Trifluoro-22-dichloroethane ND

582 582 ugSample 112919 1045 120619 1606 1111-Trifluoroethane ND

291 559 ugSample 112919 1045 120619 1606 11122-Tetrachloroethane ND

582 326 ugSample 112919 1045 120619 1606 1112-Trichloro-122-trifluoroethane ND

582 582 ugSample 112919 1045 120619 1606 1112-trichloro-1-fluoroethane ND

291 303 ugSample 112919 1045 120619 1606 1112-Trichloroethane ND

582 291 ugSample 112919 1045 120619 1606 111-Dichloro-1-fluoroethane ND

582 582 ugSample 112919 1045 120619 1606 111-dichloro-22-difluoroethane ND

582 582 ugSample 112919 1045 120619 1606 111-dichloro-22-difluoroethene ND

291 349 ugSample 112919 1045 120619 1606 111-Dichloroethane ND

291 431 ugSample 112919 1045 120619 1606 111-Dichloroethene ND

291 314 ugSample 112919 1045 120619 1606 111-Dichloropropene ND

582 582 ugSample 112919 1045 120619 1606 111-Difluoroethene ND

582 582 ugSample 112919 1045 120619 1606 1122-trichloro-11-difluoroethane ND

291 932 ugSample 112919 1045 120619 1606 1123-Trichlorobenzene ND

291 722 ugSample 112919 1045 120619 1606 1123-Trichloropropane ND

291 978 ugSample 112919 1045 120619 1606 1124-Trichlorobenzene ND

291 606 ugSample 112919 1045 120619 1606 1124-Trimethylbenzene ND

582 102 ugSample 112919 1045 120619 1606 112-Dibromo-3-Chloropropane ND

291 384 ugSample 112919 1045 120619 1606 112-Dibromoethane (EDB) ND

582 582 ugSample 112919 1045 120619 1606 112-dichloro-11-difluoroethane ND

291 512 ugSample 112919 1045 120619 1606 112-Dichlorobenzene ND

291 489 ugSample 112919 1045 120619 1606 112-Dichloroethane ND

291 291 ugSample 112919 1045 120619 1606 112-Dichloropropane ND

291 606 ugSample 112919 1045 120619 1606 1135-Trimethylbenzene ND

291 501 ugSample 112919 1045 120619 1606 113-Dichlorobenzene ND

291 326 ugSample 112919 1045 120619 1606 113-Dichloropropane ND

291 582 ugSample 112919 1045 120619 1606 114-Dichlorobenzene ND

582 594 ugSample 112919 1045 120619 1606 11-Chloro-11-difluoroethane ND

582 582 ugSample 112919 1045 120619 1606 122-dichloro-11-difluoroethylmethyl

ether

ND

291 850 ugSample 112919 1045 120619 1606 122-Dichloropropane ND

116 186 ugSample 112919 1045 120619 1606 12-Butanone (MEK) ND

582 862 ugSample 112919 1045 120619 1606 12-chloro-111444-hexafluoro-2-but

ene

ND

582 582 ugSample 112919 1045 120619 1606 12-Chloro-111-Trifluoroethane ND

291 547 ugSample 112919 1045 120619 1606 12-Chlorotoluene ND

116 268 ugSample 112919 1045 120619 1606 12-Hexanone ND

254 254 ugSample 112919 1045 120619 1606 12-MTP as HFPO ND

291 606 ugSample 112919 1045 120619 1606 14-Chlorotoluene ND

291 780 ugSample 112919 1045 120619 1606 14-Isopropyltoluene ND

116 186 ugSample 112919 1045 120619 1606 14-Methyl-2-pentanone (MIBK) ND

116 687 ugSample 112919 1045 120619 1606 1Acetone ND

291 559 ugSample 112919 1045 120619 1606 1Benzene ND

291 408 ugSample 112919 1045 120619 1606 1Bromobenzene ND

291 652 ugSample 112919 1045 120619 1606 1Bromochloromethane ND

291 501 ugSample 112919 1045 120619 1606 1Bromodichloromethane ND

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12232019Page 18 of 820142

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-3Client Sample ID A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromoform ND 291 885 ugSample 112919 1045 120619 1606 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

582 338 ugSample 112919 1045 120619 1606 1Bromomethane ND

291 722 ugSample 112919 1045 120619 1606 1Carbon disulfide ND

291 384 ugSample 112919 1045 120619 1606 1Carbon tetrachloride ND

850 850 ugSample 112919 1045 120619 1606 1Carbonyl Difluoride ND

291 419 ugSample 112919 1045 120619 1606 1Chlorobenzene ND

291 629 ugSample 112919 1045 120619 1606 1Chlorodibromomethane ND

582 128 ugSample 112919 1045 120619 1606 1Chloroethane ND

291 338 ugSample 112919 1045 120619 1606 1Chloroform ND

582 242 ugSample 112919 1045 120619 1606 1Chloromethane ND

291 233 ugSample 112919 1045 120619 1606 1cis-12-Dichloroethene ND

291 501 ugSample 112919 1045 120619 1606 1cis-13-Dichloropropene ND

291 280 ugSample 112919 1045 120619 1606 1Dibromomethane ND

582 102 ugSample 112919 1045 120619 1606 1Dichlorodifluoromethane ND

291 477 ugSample 112919 1045 120619 1606 1Ethylbenzene ND

291 291 ugSample 112919 1045 120619 1606 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

291 769 ugSample 112919 1045 120619 1606 1Hexachlorobutadiene ND

279 279 ugSample 112919 1045 120619 1606 1HFPO dimer methyl ester as

HFPO-DA

ND

291 408 ugSample 112919 1045 120619 1606 1Isopropylbenzene ND

582 477 ugSample 112919 1045 120619 1606 1mp-Xylene ND

291 186 ugSample 112919 1045 120619 1606 1Methylene Chloride ND

291 140 ugSample 112919 1045 120619 1606 1Naphthalene ND

291 745 ugSample 112919 1045 120619 1606 1n-Butylbenzene ND

291 629 ugSample 112919 1045 120619 1606 1n-Propylbenzene ND

291 303 ugSample 112919 1045 120619 1606 1o-Xylene ND

291 571 ugSample 112919 1045 120619 1606 1sec-Butylbenzene ND

291 629 ugSample 112919 1045 120619 1606 1Styrene ND

291 512 ugSample 112919 1045 120619 1606 1tert-Butylbenzene ND

291 384 ugSample 112919 1045 120619 1606 1Tetrachloroethene ND

291 536 ugSample 112919 1045 120619 1606 1Toluene ND

291 303 ugSample 112919 1045 120619 1606 1trans-12-Dichloroethene ND

291 102 ugSample 112919 1045 120619 1606 1trans-13-Dichloropropene ND

291 210 ugSample 112919 1045 120619 1606 1Trichloroethene ND

582 559 ugSample 112919 1045 120619 1606 1Trichlorofluoromethane ND

582 140 ugSample 112919 1045 120619 1606 1Vinyl chloride ND

Cyclohexane 424 T J N ugSample 442 110-82-7 112919 1045 120619 1606 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1045 120619 1606 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 112919 1045 120619 1606 157 - 152

Dibromofluoromethane (Surr) 104 112919 1045 120619 1606 162 - 134

Toluene-d8 (Surr) 98 112919 1045 120619 1606 171 - 139

Eurofins TestAmerica Knoxville

12232019Page 19 of 820143

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-3Client Sample ID A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 6110 J 6210 3110 ugSample 112919 1045 121319 2235 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2560 1160 ugSample 112919 1045 121819 1401 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1044 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 129 50 - 200 120419 1005 120819 1044 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-4Client Sample ID A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 304 402 ugSample 112919 1045 120619 1631 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

608 608 ugSample 112919 1045 120619 1631 111133-Pentafluorobutane ND

304 438 ugSample 112919 1045 120619 1631 1111-Trichloroethane ND

608 120 ugSample 112919 1045 120619 1631 1111-Trifluoro-22-dichloroethane ND

608 608 ugSample 112919 1045 120619 1631 1111-Trifluoroethane ND

304 584 ugSample 112919 1045 120619 1631 11122-Tetrachloroethane ND

608 341 ugSample 112919 1045 120619 1631 1112-Trichloro-122-trifluoroethane ND

608 608 ugSample 112919 1045 120619 1631 1112-trichloro-1-fluoroethane ND

304 316 ugSample 112919 1045 120619 1631 1112-Trichloroethane ND

608 304 ugSample 112919 1045 120619 1631 111-Dichloro-1-fluoroethane ND

608 608 ugSample 112919 1045 120619 1631 111-dichloro-22-difluoroethane ND

608 608 ugSample 112919 1045 120619 1631 111-dichloro-22-difluoroethene ND

304 365 ugSample 112919 1045 120619 1631 111-Dichloroethane ND

304 450 ugSample 112919 1045 120619 1631 111-Dichloroethene ND

304 329 ugSample 112919 1045 120619 1631 111-Dichloropropene ND

608 608 ugSample 112919 1045 120619 1631 111-Difluoroethene ND

608 608 ugSample 112919 1045 120619 1631 1122-trichloro-11-difluoroethane ND

304 974 ugSample 112919 1045 120619 1631 1123-Trichlorobenzene ND

304 754 ugSample 112919 1045 120619 1631 1123-Trichloropropane ND

304 102 ugSample 112919 1045 120619 1631 1124-Trichlorobenzene ND

304 633 ugSample 112919 1045 120619 1631 1124-Trimethylbenzene ND

608 107 ugSample 112919 1045 120619 1631 112-Dibromo-3-Chloropropane ND

304 402 ugSample 112919 1045 120619 1631 112-Dibromoethane (EDB) ND

608 608 ugSample 112919 1045 120619 1631 112-dichloro-11-difluoroethane ND

304 535 ugSample 112919 1045 120619 1631 112-Dichlorobenzene ND

304 511 ugSample 112919 1045 120619 1631 112-Dichloroethane ND

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12232019Page 20 of 820144

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-4Client Sample ID A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

12-Dichloropropane ND 304 304 ugSample 112919 1045 120619 1631 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

304 633 ugSample 112919 1045 120619 1631 1135-Trimethylbenzene ND

304 523 ugSample 112919 1045 120619 1631 113-Dichlorobenzene ND

304 341 ugSample 112919 1045 120619 1631 113-Dichloropropane ND

304 608 ugSample 112919 1045 120619 1631 114-Dichlorobenzene ND

608 621 ugSample 112919 1045 120619 1631 11-Chloro-11-difluoroethane ND

608 608 ugSample 112919 1045 120619 1631 122-dichloro-11-difluoroethylmethyl

ether

ND

304 888 ugSample 112919 1045 120619 1631 122-Dichloropropane ND

122 195 ugSample 112919 1045 120619 1631 12-Butanone (MEK) ND

608 901 ugSample 112919 1045 120619 1631 12-chloro-111444-hexafluoro-2-but

ene

ND

608 608 ugSample 112919 1045 120619 1631 12-Chloro-111-Trifluoroethane ND

304 572 ugSample 112919 1045 120619 1631 12-Chlorotoluene ND

122 280 ugSample 112919 1045 120619 1631 12-Hexanone ND

266 266 ugSample 112919 1045 120619 1631 12-MTP as HFPO ND

304 633 ugSample 112919 1045 120619 1631 14-Chlorotoluene ND

304 815 ugSample 112919 1045 120619 1631 14-Isopropyltoluene ND

122 195 ugSample 112919 1045 120619 1631 14-Methyl-2-pentanone (MIBK) ND

122 718 ugSample 112919 1045 120619 1631 1Acetone ND

304 584 ugSample 112919 1045 120619 1631 1Benzene ND

304 426 ugSample 112919 1045 120619 1631 1Bromobenzene ND

304 681 ugSample 112919 1045 120619 1631 1Bromochloromethane ND

304 523 ugSample 112919 1045 120619 1631 1Bromodichloromethane ND

304 925 ugSample 112919 1045 120619 1631 1Bromoform ND

608 353 ugSample 112919 1045 120619 1631 1Bromomethane ND

304 754 ugSample 112919 1045 120619 1631 1Carbon disulfide ND

304 402 ugSample 112919 1045 120619 1631 1Carbon tetrachloride ND

894 894 ugSample 112919 1045 120619 1631 1Carbonyl Difluoride ND

304 438 ugSample 112919 1045 120619 1631 1Chlorobenzene ND

304 657 ugSample 112919 1045 120619 1631 1Chlorodibromomethane ND

608 134 ugSample 112919 1045 120619 1631 1Chloroethane ND

304 353 ugSample 112919 1045 120619 1631 1Chloroform ND

608 253 ugSample 112919 1045 120619 1631 1Chloromethane ND

304 243 ugSample 112919 1045 120619 1631 1cis-12-Dichloroethene ND

304 523 ugSample 112919 1045 120619 1631 1cis-13-Dichloropropene ND

304 292 ugSample 112919 1045 120619 1631 1Dibromomethane ND

608 107 ugSample 112919 1045 120619 1631 1Dichlorodifluoromethane ND

304 499 ugSample 112919 1045 120619 1631 1Ethylbenzene ND

304 304 ugSample 112919 1045 120619 1631 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

304 803 ugSample 112919 1045 120619 1631 1Hexachlorobutadiene ND

292 292 ugSample 112919 1045 120619 1631 1HFPO dimer methyl ester as

HFPO-DA

ND

304 426 ugSample 112919 1045 120619 1631 1Isopropylbenzene ND

608 499 ugSample 112919 1045 120619 1631 1mp-Xylene ND

304 195 ugSample 112919 1045 120619 1631 1Methylene Chloride ND

304 146 ugSample 112919 1045 120619 1631 1Naphthalene ND

Eurofins TestAmerica Knoxville

12232019Page 21 of 820145

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-4Client Sample ID A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

n-Butylbenzene ND 304 779 ugSample 112919 1045 120619 1631 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

304 657 ugSample 112919 1045 120619 1631 1n-Propylbenzene ND

304 316 ugSample 112919 1045 120619 1631 1o-Xylene ND

304 596 ugSample 112919 1045 120619 1631 1sec-Butylbenzene ND

304 657 ugSample 112919 1045 120619 1631 1Styrene ND

304 535 ugSample 112919 1045 120619 1631 1tert-Butylbenzene ND

304 402 ugSample 112919 1045 120619 1631 1Tetrachloroethene ND

304 560 ugSample 112919 1045 120619 1631 1Toluene ND

304 316 ugSample 112919 1045 120619 1631 1trans-12-Dichloroethene ND

304 107 ugSample 112919 1045 120619 1631 1trans-13-Dichloropropene ND

304 219 ugSample 112919 1045 120619 1631 1Trichloroethene ND

608 584 ugSample 112919 1045 120619 1631 1Trichlorofluoromethane ND

608 146 ugSample 112919 1045 120619 1631 1Vinyl chloride ND

Cyclohexane 454 T J N ugSample 442 110-82-7 112919 1045 120619 1631 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 118 70 - 160 112919 1045 120619 1631 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 110 112919 1045 120619 1631 157 - 152

Dibromofluoromethane (Surr) 104 112919 1045 120619 1631 162 - 134

Toluene-d8 (Surr) 96 112919 1045 120619 1631 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 4170 J 6490 3250 ugSample 112919 1045 121319 2256 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2680 1220 ugSample 112919 1045 121819 1421 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1047 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 126 50 - 200 120419 1005 120819 1047 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1503 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-5Client Sample ID A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 269 355 ugSample 112919 1045 120619 1655 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

538 538 ugSample 112919 1045 120619 1655 111133-Pentafluorobutane ND

Eurofins TestAmerica Knoxville

12232019Page 22 of 820146

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-5Client Sample ID A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

111-Trichloroethane ND 269 387 ugSample 112919 1045 120619 1655 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

538 106 ugSample 112919 1045 120619 1655 1111-Trifluoro-22-dichloroethane ND

538 538 ugSample 112919 1045 120619 1655 1111-Trifluoroethane ND

269 516 ugSample 112919 1045 120619 1655 11122-Tetrachloroethane ND

538 301 ugSample 112919 1045 120619 1655 1112-Trichloro-122-trifluoroethane ND

538 538 ugSample 112919 1045 120619 1655 1112-trichloro-1-fluoroethane ND

269 280 ugSample 112919 1045 120619 1655 1112-Trichloroethane ND

538 269 ugSample 112919 1045 120619 1655 111-Dichloro-1-fluoroethane ND

538 538 ugSample 112919 1045 120619 1655 111-dichloro-22-difluoroethane ND

538 538 ugSample 112919 1045 120619 1655 111-dichloro-22-difluoroethene ND

269 323 ugSample 112919 1045 120619 1655 111-Dichloroethane ND

269 398 ugSample 112919 1045 120619 1655 111-Dichloroethene ND

269 290 ugSample 112919 1045 120619 1655 111-Dichloropropene ND

538 538 ugSample 112919 1045 120619 1655 111-Difluoroethene ND

538 538 ugSample 112919 1045 120619 1655 1122-trichloro-11-difluoroethane ND

269 860 ugSample 112919 1045 120619 1655 1123-Trichlorobenzene ND

269 667 ugSample 112919 1045 120619 1655 1123-Trichloropropane ND

269 903 ugSample 112919 1045 120619 1655 1124-Trichlorobenzene ND

269 559 ugSample 112919 1045 120619 1655 1124-Trimethylbenzene ND

538 946 ugSample 112919 1045 120619 1655 112-Dibromo-3-Chloropropane ND

269 355 ugSample 112919 1045 120619 1655 112-Dibromoethane (EDB) ND

538 538 ugSample 112919 1045 120619 1655 112-dichloro-11-difluoroethane ND

269 473 ugSample 112919 1045 120619 1655 112-Dichlorobenzene ND

269 452 ugSample 112919 1045 120619 1655 112-Dichloroethane ND

269 269 ugSample 112919 1045 120619 1655 112-Dichloropropane ND

269 559 ugSample 112919 1045 120619 1655 1135-Trimethylbenzene ND

269 462 ugSample 112919 1045 120619 1655 113-Dichlorobenzene ND

269 301 ugSample 112919 1045 120619 1655 113-Dichloropropane ND

269 538 ugSample 112919 1045 120619 1655 114-Dichlorobenzene ND

538 548 ugSample 112919 1045 120619 1655 11-Chloro-11-difluoroethane ND

538 538 ugSample 112919 1045 120619 1655 122-dichloro-11-difluoroethylmethyl

ether

ND

269 785 ugSample 112919 1045 120619 1655 122-Dichloropropane ND

108 172 ugSample 112919 1045 120619 1655 12-Butanone (MEK) ND

538 796 ugSample 112919 1045 120619 1655 12-chloro-111444-hexafluoro-2-but

ene

ND

538 538 ugSample 112919 1045 120619 1655 12-Chloro-111-Trifluoroethane ND

269 505 ugSample 112919 1045 120619 1655 12-Chlorotoluene ND

108 247 ugSample 112919 1045 120619 1655 12-Hexanone ND

235 235 ugSample 112919 1045 120619 1655 12-MTP as HFPO ND

269 559 ugSample 112919 1045 120619 1655 14-Chlorotoluene ND

269 720 ugSample 112919 1045 120619 1655 14-Isopropyltoluene ND

108 172 ugSample 112919 1045 120619 1655 14-Methyl-2-pentanone (MIBK) ND

108 634 ugSample 112919 1045 120619 1655 1Acetone ND

269 516 ugSample 112919 1045 120619 1655 1Benzene ND

269 376 ugSample 112919 1045 120619 1655 1Bromobenzene ND

269 602 ugSample 112919 1045 120619 1655 1Bromochloromethane ND

269 462 ugSample 112919 1045 120619 1655 1Bromodichloromethane ND

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12232019Page 23 of 820147

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-5Client Sample ID A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromoform ND 269 817 ugSample 112919 1045 120619 1655 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

538 312 ugSample 112919 1045 120619 1655 1Bromomethane ND

269 667 ugSample 112919 1045 120619 1655 1Carbon disulfide ND

269 355 ugSample 112919 1045 120619 1655 1Carbon tetrachloride ND

791 791 ugSample 112919 1045 120619 1655 1Carbonyl Difluoride ND

269 387 ugSample 112919 1045 120619 1655 1Chlorobenzene ND

269 581 ugSample 112919 1045 120619 1655 1Chlorodibromomethane ND

538 118 ugSample 112919 1045 120619 1655 1Chloroethane ND

269 312 ugSample 112919 1045 120619 1655 1Chloroform ND

538 224 ugSample 112919 1045 120619 1655 1Chloromethane ND

269 215 ugSample 112919 1045 120619 1655 1cis-12-Dichloroethene ND

269 462 ugSample 112919 1045 120619 1655 1cis-13-Dichloropropene ND

269 258 ugSample 112919 1045 120619 1655 1Dibromomethane ND

538 946 ugSample 112919 1045 120619 1655 1Dichlorodifluoromethane ND

269 441 ugSample 112919 1045 120619 1655 1Ethylbenzene ND

269 269 ugSample 112919 1045 120619 1655 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

269 710 ugSample 112919 1045 120619 1655 1Hexachlorobutadiene ND

258 258 ugSample 112919 1045 120619 1655 1HFPO dimer methyl ester as

HFPO-DA

ND

269 376 ugSample 112919 1045 120619 1655 1Isopropylbenzene ND

538 441 ugSample 112919 1045 120619 1655 1mp-Xylene ND

269 172 ugSample 112919 1045 120619 1655 1Methylene Chloride ND

269 129 ugSample 112919 1045 120619 1655 1Naphthalene ND

269 688 ugSample 112919 1045 120619 1655 1n-Butylbenzene ND

269 581 ugSample 112919 1045 120619 1655 1n-Propylbenzene ND

269 280 ugSample 112919 1045 120619 1655 1o-Xylene ND

269 527 ugSample 112919 1045 120619 1655 1sec-Butylbenzene ND

269 581 ugSample 112919 1045 120619 1655 1Styrene ND

269 473 ugSample 112919 1045 120619 1655 1tert-Butylbenzene ND

269 355 ugSample 112919 1045 120619 1655 1Tetrachloroethene ND

269 495 ugSample 112919 1045 120619 1655 1Toluene ND

269 280 ugSample 112919 1045 120619 1655 1trans-12-Dichloroethene ND

269 946 ugSample 112919 1045 120619 1655 1trans-13-Dichloropropene ND

269 194 ugSample 112919 1045 120619 1655 1Trichloroethene ND

538 516 ugSample 112919 1045 120619 1655 1Trichlorofluoromethane ND

538 129 ugSample 112919 1045 120619 1655 1Vinyl chloride ND

Cyclohexane 436 T J N ugSample 442 110-82-7 112919 1045 120619 1655 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 118 70 - 160 112919 1045 120619 1655 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1045 120619 1655 157 - 152

Dibromofluoromethane (Surr) 103 112919 1045 120619 1655 162 - 134

Toluene-d8 (Surr) 96 112919 1045 120619 1655 171 - 139

Eurofins TestAmerica Knoxville

12232019Page 24 of 820148

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-5Client Sample ID A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine ND 5730 2870 ugSample 112919 1045 121319 2316 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2370 1080 ugSample 112919 1045 121819 1442 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1053 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 125 50 - 200 120419 1005 120819 1053 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1503 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-6Client Sample ID A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 291 384 ugSample 112919 1045 120619 1720 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

582 582 ugSample 112919 1045 120619 1720 111133-Pentafluorobutane ND

291 419 ugSample 112919 1045 120619 1720 1111-Trichloroethane ND

582 115 ugSample 112919 1045 120619 1720 1111-Trifluoro-22-dichloroethane ND

582 582 ugSample 112919 1045 120619 1720 1111-Trifluoroethane ND

291 559 ugSample 112919 1045 120619 1720 11122-Tetrachloroethane ND

582 326 ugSample 112919 1045 120619 1720 1112-Trichloro-122-trifluoroethane ND

582 582 ugSample 112919 1045 120619 1720 1112-trichloro-1-fluoroethane ND

291 303 ugSample 112919 1045 120619 1720 1112-Trichloroethane ND

582 291 ugSample 112919 1045 120619 1720 111-Dichloro-1-fluoroethane ND

582 582 ugSample 112919 1045 120619 1720 111-dichloro-22-difluoroethane ND

582 582 ugSample 112919 1045 120619 1720 111-dichloro-22-difluoroethene ND

291 349 ugSample 112919 1045 120619 1720 111-Dichloroethane ND

291 431 ugSample 112919 1045 120619 1720 111-Dichloroethene ND

291 314 ugSample 112919 1045 120619 1720 111-Dichloropropene ND

582 582 ugSample 112919 1045 120619 1720 111-Difluoroethene ND

582 582 ugSample 112919 1045 120619 1720 1122-trichloro-11-difluoroethane ND

291 931 ugSample 112919 1045 120619 1720 1123-Trichlorobenzene ND

291 722 ugSample 112919 1045 120619 1720 1123-Trichloropropane ND

291 978 ugSample 112919 1045 120619 1720 1124-Trichlorobenzene ND

291 605 ugSample 112919 1045 120619 1720 1124-Trimethylbenzene ND

582 102 ugSample 112919 1045 120619 1720 112-Dibromo-3-Chloropropane ND

291 384 ugSample 112919 1045 120619 1720 112-Dibromoethane (EDB) ND

582 582 ugSample 112919 1045 120619 1720 112-dichloro-11-difluoroethane ND

291 512 ugSample 112919 1045 120619 1720 112-Dichlorobenzene ND

291 489 ugSample 112919 1045 120619 1720 112-Dichloroethane ND

Eurofins TestAmerica Knoxville

12232019Page 25 of 820149

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-6Client Sample ID A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

12-Dichloropropane ND 291 291 ugSample 112919 1045 120619 1720 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

291 605 ugSample 112919 1045 120619 1720 1135-Trimethylbenzene ND

291 501 ugSample 112919 1045 120619 1720 113-Dichlorobenzene ND

291 326 ugSample 112919 1045 120619 1720 113-Dichloropropane ND

291 582 ugSample 112919 1045 120619 1720 114-Dichlorobenzene ND

582 594 ugSample 112919 1045 120619 1720 11-Chloro-11-difluoroethane ND

582 582 ugSample 112919 1045 120619 1720 122-dichloro-11-difluoroethylmethyl

ether

ND

291 850 ugSample 112919 1045 120619 1720 122-Dichloropropane ND

116 186 ugSample 112919 1045 120619 1720 12-Butanone (MEK) ND

582 861 ugSample 112919 1045 120619 1720 12-chloro-111444-hexafluoro-2-but

ene

ND

582 582 ugSample 112919 1045 120619 1720 12-Chloro-111-Trifluoroethane ND

291 547 ugSample 112919 1045 120619 1720 12-Chlorotoluene ND

116 268 ugSample 112919 1045 120619 1720 12-Hexanone ND

254 254 ugSample 112919 1045 120619 1720 12-MTP as HFPO ND

291 605 ugSample 112919 1045 120619 1720 14-Chlorotoluene ND

291 780 ugSample 112919 1045 120619 1720 14-Isopropyltoluene ND

116 186 ugSample 112919 1045 120619 1720 14-Methyl-2-pentanone (MIBK) ND

116 687 ugSample 112919 1045 120619 1720 1Acetone ND

291 559 ugSample 112919 1045 120619 1720 1Benzene ND

291 407 ugSample 112919 1045 120619 1720 1Bromobenzene ND

291 652 ugSample 112919 1045 120619 1720 1Bromochloromethane ND

291 501 ugSample 112919 1045 120619 1720 1Bromodichloromethane ND

291 885 ugSample 112919 1045 120619 1720 1Bromoform ND

582 338 ugSample 112919 1045 120619 1720 1Bromomethane ND

291 722 ugSample 112919 1045 120619 1720 1Carbon disulfide ND

291 384 ugSample 112919 1045 120619 1720 1Carbon tetrachloride ND

850 850 ugSample 112919 1045 120619 1720 1Carbonyl Difluoride ND

291 419 ugSample 112919 1045 120619 1720 1Chlorobenzene ND

291 629 ugSample 112919 1045 120619 1720 1Chlorodibromomethane ND

582 128 ugSample 112919 1045 120619 1720 1Chloroethane ND

291 338 ugSample 112919 1045 120619 1720 1Chloroform ND

582 242 ugSample 112919 1045 120619 1720 1Chloromethane ND

291 233 ugSample 112919 1045 120619 1720 1cis-12-Dichloroethene ND

291 501 ugSample 112919 1045 120619 1720 1cis-13-Dichloropropene ND

291 279 ugSample 112919 1045 120619 1720 1Dibromomethane ND

582 102 ugSample 112919 1045 120619 1720 1Dichlorodifluoromethane ND

291 477 ugSample 112919 1045 120619 1720 1Ethylbenzene ND

291 291 ugSample 112919 1045 120619 1720 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

291 768 ugSample 112919 1045 120619 1720 1Hexachlorobutadiene ND

279 279 ugSample 112919 1045 120619 1720 1HFPO dimer methyl ester as

HFPO-DA

ND

291 407 ugSample 112919 1045 120619 1720 1Isopropylbenzene ND

582 477 ugSample 112919 1045 120619 1720 1mp-Xylene ND

291 186 ugSample 112919 1045 120619 1720 1Methylene Chloride ND

291 140 ugSample 112919 1045 120619 1720 1Naphthalene ND

Eurofins TestAmerica Knoxville

12232019Page 26 of 820150

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-6Client Sample ID A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

n-Butylbenzene ND 291 745 ugSample 112919 1045 120619 1720 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

291 629 ugSample 112919 1045 120619 1720 1n-Propylbenzene ND

291 303 ugSample 112919 1045 120619 1720 1o-Xylene ND

291 570 ugSample 112919 1045 120619 1720 1sec-Butylbenzene ND

291 629 ugSample 112919 1045 120619 1720 1Styrene ND

291 512 ugSample 112919 1045 120619 1720 1tert-Butylbenzene ND

291 384 ugSample 112919 1045 120619 1720 1Tetrachloroethene ND

291 535 ugSample 112919 1045 120619 1720 1Toluene ND

291 303 ugSample 112919 1045 120619 1720 1trans-12-Dichloroethene ND

291 102 ugSample 112919 1045 120619 1720 1trans-13-Dichloropropene ND

291 210 ugSample 112919 1045 120619 1720 1Trichloroethene ND

582 559 ugSample 112919 1045 120619 1720 1Trichlorofluoromethane ND

582 140 ugSample 112919 1045 120619 1720 1Vinyl chloride ND

Tentatively Identified Compound None ugSample 112919 1045 120619 1720 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 119 70 - 160 112919 1045 120619 1720 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1045 120619 1720 157 - 152

Dibromofluoromethane (Surr) 104 112919 1045 120619 1720 162 - 134

Toluene-d8 (Surr) 96 112919 1045 120619 1720 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine ND 6480 3240 ugSample 112919 1045 121319 2337 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2560 1160 ugSample 112919 1045 121819 1503 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1057 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 127 50 - 200 120419 1005 120819 1057 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1503 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-7Client Sample ID A-5786 QC MEOH RBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 203 268 ugSample 112919 1045 120619 1404 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

406 406 ugSample 112919 1045 120619 1404 111133-Pentafluorobutane ND

203 293 ugSample 112919 1045 120619 1404 1111-Trichloroethane ND

Eurofins TestAmerica Knoxville

12232019Page 27 of 820151

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-7Client Sample ID A-5786 QC MEOH RBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

111-Trifluoro-22-dichloroethane ND 406 804 ugSample 112919 1045 120619 1404 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

406 406 ugSample 112919 1045 120619 1404 1111-Trifluoroethane ND

203 390 ugSample 112919 1045 120619 1404 11122-Tetrachloroethane ND

406 228 ugSample 112919 1045 120619 1404 1112-Trichloro-122-trifluoroethane ND

406 406 ugSample 112919 1045 120619 1404 1112-trichloro-1-fluoroethane ND

203 211 ugSample 112919 1045 120619 1404 1112-Trichloroethane ND

406 203 ugSample 112919 1045 120619 1404 111-Dichloro-1-fluoroethane ND

406 406 ugSample 112919 1045 120619 1404 111-dichloro-22-difluoroethane ND

406 406 ugSample 112919 1045 120619 1404 111-dichloro-22-difluoroethene ND

203 244 ugSample 112919 1045 120619 1404 111-Dichloroethane ND

203 301 ugSample 112919 1045 120619 1404 111-Dichloroethene ND

203 219 ugSample 112919 1045 120619 1404 111-Dichloropropene ND

406 406 ugSample 112919 1045 120619 1404 111-Difluoroethene ND

406 406 ugSample 112919 1045 120619 1404 1122-trichloro-11-difluoroethane ND

203 650 ugSample 112919 1045 120619 1404 1123-Trichlorobenzene ND

203 504 ugSample 112919 1045 120619 1404 1123-Trichloropropane ND

203 683 ugSample 112919 1045 120619 1404 1124-Trichlorobenzene ND

203 423 ugSample 112919 1045 120619 1404 1124-Trimethylbenzene ND

406 715 ugSample 112919 1045 120619 1404 112-Dibromo-3-Chloropropane ND

203 268 ugSample 112919 1045 120619 1404 112-Dibromoethane (EDB) ND

406 406 ugSample 112919 1045 120619 1404 112-dichloro-11-difluoroethane ND

203 358 ugSample 112919 1045 120619 1404 112-Dichlorobenzene ND

203 341 ugSample 112919 1045 120619 1404 112-Dichloroethane ND

203 203 ugSample 112919 1045 120619 1404 112-Dichloropropane ND

203 423 ugSample 112919 1045 120619 1404 1135-Trimethylbenzene ND

203 349 ugSample 112919 1045 120619 1404 113-Dichlorobenzene ND

203 228 ugSample 112919 1045 120619 1404 113-Dichloropropane ND

203 406 ugSample 112919 1045 120619 1404 114-Dichlorobenzene ND

406 414 ugSample 112919 1045 120619 1404 11-Chloro-11-difluoroethane ND

406 406 ugSample 112919 1045 120619 1404 122-dichloro-11-difluoroethylmethyl

ether

ND

203 593 ugSample 112919 1045 120619 1404 122-Dichloropropane ND

813 130 ugSample 112919 1045 120619 1404 12-Butanone (MEK) ND

406 601 ugSample 112919 1045 120619 1404 12-chloro-111444-hexafluoro-2-but

ene

ND

406 406 ugSample 112919 1045 120619 1404 12-Chloro-111-Trifluoroethane ND

203 382 ugSample 112919 1045 120619 1404 12-Chlorotoluene ND

813 187 ugSample 112919 1045 120619 1404 12-Hexanone ND

177 177 ugSample 112919 1045 120619 1404 12-MTP as HFPO ND

203 423 ugSample 112919 1045 120619 1404 14-Chlorotoluene ND

203 544 ugSample 112919 1045 120619 1404 14-Isopropyltoluene ND

813 130 ugSample 112919 1045 120619 1404 14-Methyl-2-pentanone (MIBK) ND

813 479 ugSample 112919 1045 120619 1404 1Acetone ND

203 390 ugSample 112919 1045 120619 1404 1Benzene ND

203 284 ugSample 112919 1045 120619 1404 1Bromobenzene ND

203 455 ugSample 112919 1045 120619 1404 1Bromochloromethane ND

203 349 ugSample 112919 1045 120619 1404 1Bromodichloromethane ND

203 618 ugSample 112919 1045 120619 1404 1Bromoform ND

406 236 ugSample 112919 1045 120619 1404 1Bromomethane ND

Eurofins TestAmerica Knoxville

12232019Page 28 of 820152

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-7Client Sample ID A-5786 QC MEOH RBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Carbon disulfide ND 203 504 ugSample 112919 1045 120619 1404 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

203 268 ugSample 112919 1045 120619 1404 1Carbon tetrachloride ND

596 596 ugSample 112919 1045 120619 1404 1Carbonyl Difluoride ND

203 293 ugSample 112919 1045 120619 1404 1Chlorobenzene ND

203 439 ugSample 112919 1045 120619 1404 1Chlorodibromomethane ND

406 894 ugSample 112919 1045 120619 1404 1Chloroethane ND

203 236 ugSample 112919 1045 120619 1404 1Chloroform ND

406 169 ugSample 112919 1045 120619 1404 1Chloromethane ND

203 163 ugSample 112919 1045 120619 1404 1cis-12-Dichloroethene ND

203 349 ugSample 112919 1045 120619 1404 1cis-13-Dichloropropene ND

203 195 ugSample 112919 1045 120619 1404 1Dibromomethane ND

406 715 ugSample 112919 1045 120619 1404 1Dichlorodifluoromethane ND

203 333 ugSample 112919 1045 120619 1404 1Ethylbenzene ND

203 203 ugSample 112919 1045 120619 1404 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

203 536 ugSample 112919 1045 120619 1404 1Hexachlorobutadiene ND

195 195 ugSample 112919 1045 120619 1404 1HFPO dimer methyl ester as

HFPO-DA

ND

203 284 ugSample 112919 1045 120619 1404 1Isopropylbenzene ND

406 333 ugSample 112919 1045 120619 1404 1mp-Xylene ND

203 130 ugSample 112919 1045 120619 1404 1Methylene Chloride 131 J B

203 975 ugSample 112919 1045 120619 1404 1Naphthalene ND

203 520 ugSample 112919 1045 120619 1404 1n-Butylbenzene ND

203 439 ugSample 112919 1045 120619 1404 1n-Propylbenzene ND

203 211 ugSample 112919 1045 120619 1404 1o-Xylene ND

203 398 ugSample 112919 1045 120619 1404 1sec-Butylbenzene ND

203 439 ugSample 112919 1045 120619 1404 1Styrene ND

203 358 ugSample 112919 1045 120619 1404 1tert-Butylbenzene ND

203 268 ugSample 112919 1045 120619 1404 1Tetrachloroethene ND

203 374 ugSample 112919 1045 120619 1404 1Toluene ND

203 211 ugSample 112919 1045 120619 1404 1trans-12-Dichloroethene ND

203 715 ugSample 112919 1045 120619 1404 1trans-13-Dichloropropene ND

203 146 ugSample 112919 1045 120619 1404 1Trichloroethene ND

406 390 ugSample 112919 1045 120619 1404 1Trichlorofluoromethane ND

406 975 ugSample 112919 1045 120619 1404 1Vinyl chloride ND

Cyclohexane 349 T J N ugSample 442 110-82-7 112919 1045 120619 1404 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 116 70 - 160 112919 1045 120619 1404 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 110 112919 1045 120619 1404 157 - 152

Dibromofluoromethane (Surr) 104 112919 1045 120619 1404 162 - 134

Toluene-d8 (Surr) 97 112919 1045 120619 1404 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine ND 4330 2170 ugSample 112919 1045 121319 2358 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

1790 813 ugSample 112919 1045 121819 1524 20Hydrogen Fluoride ND

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12232019Page 29 of 820153

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-7Client Sample ID A-5786 QC MEOH RBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 00106 J 00250 000500 ugSample 120419 1005 120819 1100 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 125 50 - 200 120419 1005 120819 1100 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1503 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-8Client Sample ID A-5787 QC MEOH TBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 154 203 ugSample 112919 1045 120619 1428 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

308 308 ugSample 112919 1045 120619 1428 111133-Pentafluorobutane ND

154 222 ugSample 112919 1045 120619 1428 1111-Trichloroethane ND

308 609 ugSample 112919 1045 120619 1428 1111-Trifluoro-22-dichloroethane ND

308 308 ugSample 112919 1045 120619 1428 1111-Trifluoroethane ND

154 295 ugSample 112919 1045 120619 1428 11122-Tetrachloroethane ND

308 172 ugSample 112919 1045 120619 1428 1112-Trichloro-122-trifluoroethane ND

308 308 ugSample 112919 1045 120619 1428 1112-trichloro-1-fluoroethane ND

154 160 ugSample 112919 1045 120619 1428 1112-Trichloroethane ND

308 154 ugSample 112919 1045 120619 1428 111-Dichloro-1-fluoroethane ND

308 308 ugSample 112919 1045 120619 1428 111-dichloro-22-difluoroethane ND

308 308 ugSample 112919 1045 120619 1428 111-dichloro-22-difluoroethene ND

154 185 ugSample 112919 1045 120619 1428 111-Dichloroethane ND

154 228 ugSample 112919 1045 120619 1428 111-Dichloroethene ND

154 166 ugSample 112919 1045 120619 1428 111-Dichloropropene ND

308 308 ugSample 112919 1045 120619 1428 111-Difluoroethene ND

308 308 ugSample 112919 1045 120619 1428 1122-trichloro-11-difluoroethane ND

154 492 ugSample 112919 1045 120619 1428 1123-Trichlorobenzene ND

154 382 ugSample 112919 1045 120619 1428 1123-Trichloropropane ND

154 517 ugSample 112919 1045 120619 1428 1124-Trichlorobenzene ND

154 320 ugSample 112919 1045 120619 1428 1124-Trimethylbenzene ND

308 542 ugSample 112919 1045 120619 1428 112-Dibromo-3-Chloropropane ND

154 203 ugSample 112919 1045 120619 1428 112-Dibromoethane (EDB) ND

308 308 ugSample 112919 1045 120619 1428 112-dichloro-11-difluoroethane ND

154 271 ugSample 112919 1045 120619 1428 112-Dichlorobenzene ND

154 259 ugSample 112919 1045 120619 1428 112-Dichloroethane ND

154 154 ugSample 112919 1045 120619 1428 112-Dichloropropane ND

154 320 ugSample 112919 1045 120619 1428 1135-Trimethylbenzene ND

154 265 ugSample 112919 1045 120619 1428 113-Dichlorobenzene ND

154 172 ugSample 112919 1045 120619 1428 113-Dichloropropane ND

154 308 ugSample 112919 1045 120619 1428 114-Dichlorobenzene ND

308 314 ugSample 112919 1045 120619 1428 11-Chloro-11-difluoroethane ND

308 308 ugSample 112919 1045 120619 1428 122-dichloro-11-difluoroethylmethyl

ether

ND

Eurofins TestAmerica Knoxville

12232019Page 30 of 820154

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-8Client Sample ID A-5787 QC MEOH TBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

22-Dichloropropane ND 154 449 ugSample 112919 1045 120619 1428 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

616 985 ugSample 112919 1045 120619 1428 12-Butanone (MEK) ND

308 455 ugSample 112919 1045 120619 1428 12-chloro-111444-hexafluoro-2-but

ene

ND

308 308 ugSample 112919 1045 120619 1428 12-Chloro-111-Trifluoroethane ND

154 289 ugSample 112919 1045 120619 1428 12-Chlorotoluene ND

616 142 ugSample 112919 1045 120619 1428 12-Hexanone ND

135 135 ugSample 112919 1045 120619 1428 12-MTP as HFPO ND

154 320 ugSample 112919 1045 120619 1428 14-Chlorotoluene ND

154 412 ugSample 112919 1045 120619 1428 14-Isopropyltoluene ND

616 985 ugSample 112919 1045 120619 1428 14-Methyl-2-pentanone (MIBK) ND

616 363 ugSample 112919 1045 120619 1428 1Acetone ND

154 295 ugSample 112919 1045 120619 1428 1Benzene ND

154 215 ugSample 112919 1045 120619 1428 1Bromobenzene ND

154 345 ugSample 112919 1045 120619 1428 1Bromochloromethane ND

154 265 ugSample 112919 1045 120619 1428 1Bromodichloromethane ND

154 468 ugSample 112919 1045 120619 1428 1Bromoform ND

308 178 ugSample 112919 1045 120619 1428 1Bromomethane ND

154 382 ugSample 112919 1045 120619 1428 1Carbon disulfide ND

154 203 ugSample 112919 1045 120619 1428 1Carbon tetrachloride ND

451 451 ugSample 112919 1045 120619 1428 1Carbonyl Difluoride ND

154 222 ugSample 112919 1045 120619 1428 1Chlorobenzene ND

154 332 ugSample 112919 1045 120619 1428 1Chlorodibromomethane ND

308 677 ugSample 112919 1045 120619 1428 1Chloroethane ND

154 178 ugSample 112919 1045 120619 1428 1Chloroform ND

308 128 ugSample 112919 1045 120619 1428 1Chloromethane ND

154 123 ugSample 112919 1045 120619 1428 1cis-12-Dichloroethene ND

154 265 ugSample 112919 1045 120619 1428 1cis-13-Dichloropropene ND

154 148 ugSample 112919 1045 120619 1428 1Dibromomethane ND

308 542 ugSample 112919 1045 120619 1428 1Dichlorodifluoromethane ND

154 252 ugSample 112919 1045 120619 1428 1Ethylbenzene ND

154 154 ugSample 112919 1045 120619 1428 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

154 406 ugSample 112919 1045 120619 1428 1Hexachlorobutadiene ND

148 148 ugSample 112919 1045 120619 1428 1HFPO dimer methyl ester as

HFPO-DA

ND

154 215 ugSample 112919 1045 120619 1428 1Isopropylbenzene ND

308 252 ugSample 112919 1045 120619 1428 1mp-Xylene ND

154 985 ugSample 112919 1045 120619 1428 1Methylene Chloride 101 J B

154 739 ugSample 112919 1045 120619 1428 1Naphthalene ND

154 394 ugSample 112919 1045 120619 1428 1n-Butylbenzene ND

154 332 ugSample 112919 1045 120619 1428 1n-Propylbenzene ND

154 160 ugSample 112919 1045 120619 1428 1o-Xylene ND

154 302 ugSample 112919 1045 120619 1428 1sec-Butylbenzene ND

154 332 ugSample 112919 1045 120619 1428 1Styrene ND

154 271 ugSample 112919 1045 120619 1428 1tert-Butylbenzene ND

154 203 ugSample 112919 1045 120619 1428 1Tetrachloroethene ND

154 283 ugSample 112919 1045 120619 1428 1Toluene ND

154 160 ugSample 112919 1045 120619 1428 1trans-12-Dichloroethene ND

Eurofins TestAmerica Knoxville

12232019Page 31 of 820155

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-8Client Sample ID A-5787 QC MEOH TBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

trans-13-Dichloropropene ND 154 542 ugSample 112919 1045 120619 1428 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

154 111 ugSample 112919 1045 120619 1428 1Trichloroethene ND

308 295 ugSample 112919 1045 120619 1428 1Trichlorofluoromethane ND

308 739 ugSample 112919 1045 120619 1428 1Vinyl chloride ND

Cyclohexane 417 T J N ugSample 442 110-82-7 112919 1045 120619 1428 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 119 70 - 160 112919 1045 120619 1428 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 112919 1045 120619 1428 157 - 152

Dibromofluoromethane (Surr) 105 112919 1045 120619 1428 162 - 134

Toluene-d8 (Surr) 96 112919 1045 120619 1428 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 9720 3280 1640 ugSample 112919 1045 121419 0018 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

1350 616 ugSample 112919 1045 121919 0919 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1103 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 125 50 - 200 120419 1005 120819 1103 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1503 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-9Client Sample ID A-5788 QC MEOH PBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 181 238 ugSample 112919 1045 120619 1453 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

361 361 ugSample 112919 1045 120619 1453 111133-Pentafluorobutane ND

181 260 ugSample 112919 1045 120619 1453 1111-Trichloroethane ND

361 715 ugSample 112919 1045 120619 1453 1111-Trifluoro-22-dichloroethane ND

361 361 ugSample 112919 1045 120619 1453 1111-Trifluoroethane ND

181 347 ugSample 112919 1045 120619 1453 11122-Tetrachloroethane ND

361 202 ugSample 112919 1045 120619 1453 1112-Trichloro-122-trifluoroethane ND

361 361 ugSample 112919 1045 120619 1453 1112-trichloro-1-fluoroethane ND

181 188 ugSample 112919 1045 120619 1453 1112-Trichloroethane ND

361 181 ugSample 112919 1045 120619 1453 111-Dichloro-1-fluoroethane ND

361 361 ugSample 112919 1045 120619 1453 111-dichloro-22-difluoroethane ND

361 361 ugSample 112919 1045 120619 1453 111-dichloro-22-difluoroethene ND

181 217 ugSample 112919 1045 120619 1453 111-Dichloroethane ND

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12232019Page 32 of 820156

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-9Client Sample ID A-5788 QC MEOH PBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

11-Dichloroethene ND 181 267 ugSample 112919 1045 120619 1453 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

181 195 ugSample 112919 1045 120619 1453 111-Dichloropropene ND

361 361 ugSample 112919 1045 120619 1453 111-Difluoroethene ND

361 361 ugSample 112919 1045 120619 1453 1122-trichloro-11-difluoroethane ND

181 578 ugSample 112919 1045 120619 1453 1123-Trichlorobenzene ND

181 448 ugSample 112919 1045 120619 1453 1123-Trichloropropane ND

181 607 ugSample 112919 1045 120619 1453 1124-Trichlorobenzene ND

181 375 ugSample 112919 1045 120619 1453 1124-Trimethylbenzene ND

361 635 ugSample 112919 1045 120619 1453 112-Dibromo-3-Chloropropane ND

181 238 ugSample 112919 1045 120619 1453 112-Dibromoethane (EDB) ND

361 361 ugSample 112919 1045 120619 1453 112-dichloro-11-difluoroethane ND

181 318 ugSample 112919 1045 120619 1453 112-Dichlorobenzene ND

181 303 ugSample 112919 1045 120619 1453 112-Dichloroethane ND

181 181 ugSample 112919 1045 120619 1453 112-Dichloropropane ND

181 375 ugSample 112919 1045 120619 1453 1135-Trimethylbenzene ND

181 311 ugSample 112919 1045 120619 1453 113-Dichlorobenzene ND

181 202 ugSample 112919 1045 120619 1453 113-Dichloropropane ND

181 361 ugSample 112919 1045 120619 1453 114-Dichlorobenzene ND

361 368 ugSample 112919 1045 120619 1453 11-Chloro-11-difluoroethane ND

361 361 ugSample 112919 1045 120619 1453 122-dichloro-11-difluoroethylmethyl

ether

ND

181 527 ugSample 112919 1045 120619 1453 122-Dichloropropane ND

722 116 ugSample 112919 1045 120619 1453 12-Butanone (MEK) ND

361 534 ugSample 112919 1045 120619 1453 12-chloro-111444-hexafluoro-2-but

ene

ND

361 361 ugSample 112919 1045 120619 1453 12-Chloro-111-Trifluoroethane ND

181 339 ugSample 112919 1045 120619 1453 12-Chlorotoluene ND

722 166 ugSample 112919 1045 120619 1453 12-Hexanone ND

158 158 ugSample 112919 1045 120619 1453 12-MTP as HFPO ND

181 375 ugSample 112919 1045 120619 1453 14-Chlorotoluene ND

181 484 ugSample 112919 1045 120619 1453 14-Isopropyltoluene ND

722 116 ugSample 112919 1045 120619 1453 14-Methyl-2-pentanone (MIBK) ND

722 426 ugSample 112919 1045 120619 1453 1Acetone ND

181 347 ugSample 112919 1045 120619 1453 1Benzene ND

181 253 ugSample 112919 1045 120619 1453 1Bromobenzene ND

181 404 ugSample 112919 1045 120619 1453 1Bromochloromethane ND

181 311 ugSample 112919 1045 120619 1453 1Bromodichloromethane ND

181 549 ugSample 112919 1045 120619 1453 1Bromoform ND

361 209 ugSample 112919 1045 120619 1453 1Bromomethane ND

181 448 ugSample 112919 1045 120619 1453 1Carbon disulfide ND

181 238 ugSample 112919 1045 120619 1453 1Carbon tetrachloride ND

529 529 ugSample 112919 1045 120619 1453 1Carbonyl Difluoride ND

181 260 ugSample 112919 1045 120619 1453 1Chlorobenzene ND

181 390 ugSample 112919 1045 120619 1453 1Chlorodibromomethane ND

361 794 ugSample 112919 1045 120619 1453 1Chloroethane ND

181 209 ugSample 112919 1045 120619 1453 1Chloroform ND

361 150 ugSample 112919 1045 120619 1453 1Chloromethane ND

181 144 ugSample 112919 1045 120619 1453 1cis-12-Dichloroethene ND

181 311 ugSample 112919 1045 120619 1453 1cis-13-Dichloropropene ND

Eurofins TestAmerica Knoxville

12232019Page 33 of 820157

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-9Client Sample ID A-5788 QC MEOH PBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Dibromomethane ND 181 173 ugSample 112919 1045 120619 1453 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

361 635 ugSample 112919 1045 120619 1453 1Dichlorodifluoromethane ND

181 296 ugSample 112919 1045 120619 1453 1Ethylbenzene ND

181 181 ugSample 112919 1045 120619 1453 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

181 477 ugSample 112919 1045 120619 1453 1Hexachlorobutadiene ND

174 174 ugSample 112919 1045 120619 1453 1HFPO dimer methyl ester as

HFPO-DA

ND

181 253 ugSample 112919 1045 120619 1453 1Isopropylbenzene ND

361 296 ugSample 112919 1045 120619 1453 1mp-Xylene ND

181 116 ugSample 112919 1045 120619 1453 1Methylene Chloride 136 J B

181 867 ugSample 112919 1045 120619 1453 1Naphthalene ND

181 462 ugSample 112919 1045 120619 1453 1n-Butylbenzene ND

181 390 ugSample 112919 1045 120619 1453 1n-Propylbenzene ND

181 188 ugSample 112919 1045 120619 1453 1o-Xylene ND

181 354 ugSample 112919 1045 120619 1453 1sec-Butylbenzene ND

181 390 ugSample 112919 1045 120619 1453 1Styrene ND

181 318 ugSample 112919 1045 120619 1453 1tert-Butylbenzene ND

181 238 ugSample 112919 1045 120619 1453 1Tetrachloroethene ND

181 332 ugSample 112919 1045 120619 1453 1Toluene ND

181 188 ugSample 112919 1045 120619 1453 1trans-12-Dichloroethene ND

181 635 ugSample 112919 1045 120619 1453 1trans-13-Dichloropropene ND

181 130 ugSample 112919 1045 120619 1453 1Trichloroethene ND

361 347 ugSample 112919 1045 120619 1453 1Trichlorofluoromethane ND

361 867 ugSample 112919 1045 120619 1453 1Vinyl chloride ND

Cyclohexane 280 T J N ugSample 442 110-82-7 112919 1045 120619 1453 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1045 120619 1453 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 108 112919 1045 120619 1453 157 - 152

Dibromofluoromethane (Surr) 104 112919 1045 120619 1453 162 - 134

Toluene-d8 (Surr) 96 112919 1045 120619 1453 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 2450 J 3850 1930 ugSample 112919 1045 121419 0039 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

1590 722 ugSample 112919 1045 121919 0940 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1106 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 131 50 - 200 120419 1005 120819 1106 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1503 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

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12232019Page 34 of 820158

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17462-1ProjectSite VEN MM-18 Field QC

Method 8260B - Volatile Organic Compounds (GCMS)Prep MeOH Prep

2501112-Tetrachloroethane ugSample

Analyte UnitsMDLRL

0330

50011133-Pentafluorobutane ugSample0500

250111-Trichloroethane ugSample0360

500111-Trifluoro-22-dichloroethane ugSample0990

500111-Trifluoroethane ugSample0500

2501122-Tetrachloroethane ugSample0480

500112-Trichloro-122-trifluoroethane ugSample0280

500112-trichloro-1-fluoroethane ugSample0500

250112-Trichloroethane ugSample0260

50011-Dichloro-1-fluoroethane ugSample250

50011-dichloro-22-difluoroethane ugSample0500

50011-dichloro-22-difluoroethene ugSample0500

25011-Dichloroethane ugSample0300

25011-Dichloroethene ugSample0370

25011-Dichloropropene ugSample0270

50011-Difluoroethene ugSample500

500122-trichloro-11-difluoroethane ugSample0500

250123-Trichlorobenzene ugSample0800

250123-Trichloropropane ugSample0620

250124-Trichlorobenzene ugSample0840

250124-Trimethylbenzene ugSample0520

50012-Dibromo-3-Chloropropane ugSample0880

25012-Dibromoethane (EDB) ugSample0330

50012-dichloro-11-difluoroethane ugSample0500

25012-Dichlorobenzene ugSample0440

25012-Dichloroethane ugSample0420

25012-Dichloropropane ugSample0250

250135-Trimethylbenzene ugSample0520

25013-Dichlorobenzene ugSample0430

25013-Dichloropropane ugSample0280

25014-Dichlorobenzene ugSample0500

5001-Chloro-11-difluoroethane ugSample0510

50022-dichloro-11-difluoroethylmethyl ether ugSample0500

25022-Dichloropropane ugSample0730

1002-Butanone (MEK) ugSample160

5002-chloro-111444-hexafluoro-2-butene ugSample0740

5002-Chloro-111-Trifluoroethane ugSample0500

2502-Chlorotoluene ugSample0470

1002-Hexanone ugSample230

2502-MTP as HFPO ugSample250

2504-Chlorotoluene ugSample0520

2504-Isopropyltoluene ugSample0670

1004-Methyl-2-pentanone (MIBK) ugSample160

100Acetone ugSample590

250Benzene ugSample0480

250Bromobenzene ugSample0350

250Bromochloromethane ugSample0560

250Bromodichloromethane ugSample0430

250Bromoform ugSample0760

500Bromomethane ugSample290

250Carbon disulfide ugSample0620

250Carbon tetrachloride ugSample0330

Eurofins TestAmerica Knoxville

12232019Page 35 of 820159

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17462-1ProjectSite VEN MM-18 Field QC

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)Prep MeOH Prep

100Carbonyl Difluoride ugSample

Analyte UnitsMDLRL

100

250Chlorobenzene ugSample0360

250Chlorodibromomethane ugSample0540

500Chloroethane ugSample110

250Chloroform ugSample0290

500Chloromethane ugSample208

250cis-12-Dichloroethene ugSample0200

250cis-13-Dichloropropene ugSample0430

250Dibromomethane ugSample0240

500Dichlorodifluoromethane ugSample0880

250Ethylbenzene ugSample0410

250Heptafluoropropyl 1222-tetrafluoroethyl ether ugSample250

250Hexachlorobutadiene ugSample0660

250HFPO dimer methyl ester as HFPO-DA ugSample250

250Isopropylbenzene ugSample0350

500mp-Xylene ugSample0410

250Methylene Chloride ugSample160

250Naphthalene ugSample120

250n-Butylbenzene ugSample0640

250n-Propylbenzene ugSample0540

250o-Xylene ugSample0260

250sec-Butylbenzene ugSample0490

250Styrene ugSample0540

250tert-Butylbenzene ugSample0440

250Tetrachloroethene ugSample0330

250Toluene ugSample0460

250trans-12-Dichloroethene ugSample0260

250trans-13-Dichloropropene ugSample0880

250Trichloroethene ugSample0180

500Trichlorofluoromethane ugSample0480

500Vinyl chloride ugSample120

Method 9056 - Anions Ion ChromatographyPrep MeOH Prep

110Hydrogen Fluoride ugSample

Analyte UnitsMDLRL

500

1000Total Fluorine ugSample500

Method 8321A - PFOA and PFOSPrep None

0100HFPO-DA ugSample

Analyte UnitsMDLRL

00200

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12232019Page 36 of 820160

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

APPENDIX D SAMPLE CALCULATIONS

161

123120191101 AM 112219 Div Stack M0010

EXAMPLE CALCULATIONS FORVOLUMETRIC FLOW AND MOISTURE AND ISOKINETICS

Client Chemours Facility Fayetteville NCTest Number Run 1 Test Date 112219Test Location Division Stack Test Period 0826-1022

1 Volume of dry gas sampled at standard conditions (68 deg F 2992 in Hg) dscf

delta H 1764 x Y x Vm x ( Pb + ------------ )

136Vm(std) = --------------------------------------------

(Tm + 460)

14031764 x 09972 x 63136 x ( 3002 + --------------------- )

136Vm(std) = ------------------------------------------------------------ = 64704

5704 + 460

Where

Vm(std) = Volume of gas sample measured by the dry gas metercorrected to standard conditions dscf

Vm = Volume of gas sample measured by the dry gas meterat meter conditions dcf

Pb = Barometric Pressure in Hgdelt H = Average pressure drop across the orifice meter in H2O

Tm = Average dry gas meter temperature deg FY = Dry gas meter calibration factor

1764 = Factor that includes ratio of standard temperature (528 deg R)to standard pressure (2992 in Hg) deg Rin Hg

136 = Specific gravity of mercury

2 Volume of water vapor in the gas sample corrected to standard conditions scf

Vw(std) = (004707 x Vwc) + (004715 x Wwsg)

Vw(std) = ( 004707 x 100 ) + ( 004715 x 244 ) = 162

Where

Vw(std) = Volume of water vapor in the gas sample corrected tostandard conditions scf

Vwc = Volume of liquid condensed in impingers mlWwsg = Weight of water vapor collected in silica gel g

004707 = Factor which includes the density of water(0002201 lbml) the molecular weight of water(180 lblb-mole) the ideal gas constant2185 (in Hg) (ft3)lb-mole)(deg R) absolutetemperature at standard conditions (528 deg R) absolutepressure at standard conditions (2992 in Hg) ft3ml

004715 = Factor which includes the molecular weight of water(180 lblb-mole) the ideal gas constant2185 (in Hg) (ft3)lb-mole)(deg R) absolutetemperature at standard conditions (528 deg R) absolutepressure at standard conditions (2992 in Hg) and4536 glb ft3g

162

123120191101 AM 112219 Div Stack M0010

3 Moisture content

Vw(std)bws = -------------------------

Vw(std) + Vm(std)

162bws = ------------------------- = 0024

162 + 64704

Where

bws = Proportion of water vapor by volume in the gasstream dimensionless

4 Mole fraction of dry gas

Md = 1 - bws

Md = 1 - 0024 = 0976

Where

Md = Mole fraction of dry gas dimensionless

5 Dry molecular weight of gas stream lblb-mole

MWd = ( 0440 x CO2 ) + ( 0320 x O2 ) + ( 0280 x ( N2 + CO) )

MWd = ( 0440 x 00 ) + ( 0320 x 209 ) + (0280 x ( 791 + 000 ))

MWd = 2884

Where

MWd = Dry molecular weight lblb-mole CO2 = Percent carbon dioxide by volume dry basis

O2 = Percent oxygen by volume dry basis N2 = Percent nitrogen by volume dry basis

CO = Percent carbon monoxide by volume dry basis0440 = Molecular weight of carbon dioxide divided by 1000320 = Molecular weight of oxygen divided by 1000280 = Molecular weight of nitrogen or carbon monoxide

divided by 100

6 Actual molecular weight of gas stream (wet basis) lblb-mole

MWs = ( MWd x Md ) + ( 18 x ( 1 - Md ))

MWs = ( 2884 x 0976 ) +( 18 ( 1 - 0976 )) = 2857

Where

MWs = Molecular weight of wet gas lblb-mole18 = Molecular weight of water lblb-mole

163

123120191101 AM 112219 Div Stack M0010

7 Average velocity of gas stream at actual conditions ftsec

Ts (avg)Vs = 8549 x Cp x ((delt p)12)avg x ( ---------------- )12

Ps x MWs

532Vs = 8549 x 084 x 145039 x ( -------------------- )^12 = 820

2999 x 2857Where

Vs = Average gas stream velocity ftsec (lblb-mole)(in Hg)12

8549 = Pitot tube constant ftsec x ------------------------------------ (deg R)(in H2O)

Cp = Pitot tube coefficient dimensionlessTs = Absolute gas stream temperature deg R = Ts deg F + 460

P(static)Ps = Absolute gas stack pressure in Hg = Pb + --------------

136delt p = Velocity head of stack in H2O

8 Average gas stream volumetric flow rate at actual conditions wacfmin

Qs(act) = 60 x Vs x As

Qs(act) = 60 x 820 x 707 = 34799

Where

Qs(act) = Volumetric flow rate of wet stack gas at actualconditions wacfmin

As = Cross-sectional area of stack ft260 = Conversion factor from seconds to minutes

9 Average gas stream dry volumetric flow rate at standard conditions dscfmin

PsQs(std) = 1764 x Md x ----- x Qs(act)

Ts

2999Qs(std) = 1764 x 0976 x -------------------- x 34799

5316

Qs(std) = 33787

Where

Qs(std) = Volumetric flow rate of dry stack gas at standardconditions dscfmin

164

123120191101 AM 112219 Div Stack M0010

10 Isokinetic variation calculated from intermediate values percent

17327 x Ts x Vm(std)I = -----------------------------------

Vs x O x Ps x Md x (Dn)2

17327 x 532 x 64704I = -------------------------------------------------- = 1010

820 x 96 x 2999 x 0976 x (0160)^2Where

I = Percent of isokinetic samplingO = Total sampling time minutes

Dn = Diameter of nozzle inches17327 = Factor which includes standard temperature (528 deg R)

standard pressure (2992 in Hg) the formula forcalculating area of circle D24 conversion of squarefeet to square inches (144) conversion of secondsto minutes (60) and conversion to percent (100)(in Hg)(in2)(min) (deg R)(ft2)(sec)

165

1320201218 PM 112219 Div Stack M0010

SAMPLE CALCULATIONS FORHFPO DIMER ACID (METHOD 0010)

Client Chemours Plant Fayetteville NCTest Number Run 1 Test Date 112219Test Location Divison Stack Test Period 0826-1022

1 HFPO Dimer Acid concentration lbsdscf

W x 22046 x 10-9

Conc1 = ------------------------------ Vm(std)

223 x 22046 x 10-9Conc1 = ------------------------------

64704

Conc1 = 760E-10

Where

W = Weight of HFPO Dimer Acid collected in sample in ug

Conc1 = Division Stack HFPO Dimer Acid concentration lbsdscf

22046x10-9 = Conversion factor from ug to lbs

2 HFPO Dimer Acid concentration ugdscm

Conc2 = W ( Vm(std) x 002832)

Conc2 = 223 ( 64704 x 002832 )

Conc2 = 122E+01

Where

Conc2 = Division Stack HFPO Dimer Acid concentration ugdscm

002832 = Conversion factor from cubic feet to cubic meters

166

1320201218 PM 112219 Div Stack M0010

3 HFPO Dimer Acid mass emission rate lbshr

MR1(Outlet) = Conc1 x Qs(std) x 60 minhr

MR1(Outlet) = 760E-10 x 33787 x 60

MR1(Outlet) = 154E-03

Where

MR1(Outlet) = Division Stack HFPO Dimer Acid mass emission rate lbshr

4 HFPO Dimer Acid mass emission rate gsec

MR2(Outlet) = PMR1 x 45359 3600

MR2(Outlet) = 154E-03 x 45359 3600

MR2(Outlet) = 194E-04

Where

MR2(Outlet) = Division Stack HFPO Dimer Acid mass emission rate gsec

4536 = Conversion factor from pounds to grams

3600 = Conversion factor from hours to seconds

167

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

APPENDIX E EQUIPMENT CALIBRATION RECORDS

168

P-694 all in oneMOD

Pitot Tube Identification Number

Inspection Date 21919 Individual Conducting Inspection

Distance to A Plane (PA) - inches 046 PASSDistance to B Plane (PB) - inches 046 PASS

Pitot OD (Dt) - inches 0375105 Dt lt P lt 15 Dt PA must Equal PB

Q1 and Q2 must be lt 10o

B1 or B2 must be lt 5o

Z must be lt 0125 inches

W must be lt 003125 inches

X must be gt 075 inches

Thermocouple meets the Distance Criteria in the adjacent figure

Impact Pressure Opening Plane is above the Nozzle Entry Plane

NO

NA

NO

NA

PASS

PASS

PASS

Distance between Sample Nozzle and Pitot (X) - inches

Thermocouple meets the Distance Criteria in the adjacent figure

YES

YES

PASS

NO YES

NA

0

0

Angle of B1 from vertical A Tube- degrees (absolute) 0

0

08

Horizontal offset between A and B Tubes (Z) - inches

Vertical offset between A and B Tubes (W) - inches

0004

0015

PASSFAIL

Angle of B1 from vertical B Tube- degrees (absolute)

PASS

PASS

PASS

P-694

ks

Angle of Q1 from vertical A Tube- degrees (absolute)

Angle of Q2 from vertical B Tube- degrees (absolute)

Type S Pitot Tube Inspection Data Form

Are Open Faces Aligned Perpendicular to the Tube Axis

YES NOPASS

If all Criteria PASS Cp is equal to 084

Sample Probe

Type S Pitot Tube

Temperature Sensor

Dt

2 inch

Sample Probe

Temperature Sensor

DtType S Pitot Tube

3 inch

34 inch

A B

Face Opening Planes

AB

AB

Q1 Q1 Q2

B B

B

A A

A

FlowFlow

B1(+)B1(-)

B2(+ or -)

B1(+ or -)

B-Side Plane

AB

PA

PB

A-Side PlaneDt

X

Sampling D

Impact Pressure Opening Plane

Nozzle Entry Plane

W

B

A

B

A

Z

169

Long Cal Box_30 2-21-19

Calibrator MDW Meter Box Number 30 Ambient Temp 72

Date 21-Feb-19 Wet Test Meter Number P-2952 Temp Reference Source

Dry Gas Meter Number 17485131

Setting

in H20

(∆H) ft3

(Vw)ft3

(Vd)

oF (Tw)

Outlet oF (Tdo)

Inlet oF (Tdi)

Average oF (Td)

Time min (O)

Y ∆H

905750 7000 7000910724 7000 7000

4974 7000 7000911701 7100 7100916685 7100 7100

4984 7100 7100917680 7200 7200927695 7400 740010015 7300 7300

928690 7400 7400938780 7500 750010090 7450 7450

939800 7600 7600949930 7700 770010130 7650 7650

Average 09972 18715

Vw - Gas Volume passing through the wet test meter 0 - Time of calibration runVd - Gas Volume passing through the dry gas meter Pb - Barometric PressureTw - Temp of gas in the wet test meterTdi - Temp of the inlet gas of the dry gas meterTdo - Temp of the outlet gas of the dry gas meterTd - Average temp of the gas in the dry gas meter

1 2 3 4 5 632 32 32 32 32 320 00

212 213 213 212 212 2124 -01932 933 933 932 932 9324 00

1832 1832 1832 1832 1832 18320 001 - Channel Temps must agree with +- 5oF or 3oC

2 - Acceptable Temperature Difference less than 15

20 100

18501128 10002

Dry Gas Meter

700

05 700

10

Long Cal and Temperature Cal Datasheet for Standard Dry Gas Meter Console

Orifice Manometer

Wet Test Meter

Dry gas Meter

Gas Volume

1822450 700 700 90

Y - Ratio of accuracy of wet test meter to dry gas meter

∆H - Pressure differential across orifice

30 100 700

TemperaturesWet Test

Meter

680

15 100

10007

50

700

107 09910

725

745

18894

18851130 09946

150 09995

9321832

Reference Temperature

Select Temperature

oC oF

21232

Average Temperature

Reading

Thermocouple Simulator

(Accuracy +- 1oF)

Temp

Difference 2

()

Temperature Reading from Individual Thermocouple Input 1

Channel Number

19103

Calibration Results

Baro Press in Hg ( Pb)

2987

760

( ) ( )

( )( ) 2

Vw

O460tw

460tdPb

H03170H

460tw613

HPbVd

)460td(PbVwY

lowast+

lowast

+lowast

∆lowast=∆

+lowast

+lowast

+lowastlowast=

( )( ) ( )( )( )

+

+minus+=

460FTempferenceRe

460FTempTest460FTempferenceReDiffTemp

o

oo

170

Y Factor Calibration Check CalculationMODIFIED METHOD 0010 TEST TRAIN

DIVISION STACKMETER BOX NO 30

11222019Run 1 Run 2

MWd = Dry molecular weight source gas lblb-mole032 = Molecular weight of oxygen divided by 100044 = Molecular weight of carbon dioxide divided by 100028 = Molecular weight of nitrogen or carbon monoxide divided by 100

CO2 = Percent carbon dioxide by volume dry basis 00 00 O2 = Percent oxygen by volume dry basis 209 209

MWd = ( 032 O2 ) + ( 044 CO2 ) + ( 028 ( 100 - ( CO2 + O2 )))

MWd = ( 032 209 ) + ( 044 0 ) + ( 028 ( 100 - ( 0 + 209 )))

MWd = ( 669 ) + ( 000 ) + ( 2215 )

MWd = 2884 2884

Tma = Source Temperature absolute(oR)Tm = Average dry gas meter temperature deg F 570 652

Tma = Ts + 460

Tma = 5704 + 460

Tma = 51704 52519

Ps = Absolute meter pressure inches Hg1360 = Specific gravity of mercury

delta H = Avg pressure drop across the orifice meter during sampling in H2O 140 100Pb = Barometric Pressure in Hg 3002 3002

Pm = Pb + (delta H 136)

Pm = 3002 + ( 14025 136)

Pm = 3012 3009

Yqa = dry gas meter calibration check value dimensionless003 = (2992528)(075)2 (in HgdegR) cfm2

2900 = dry molecular weight of air lblb-moleVm = Volume of gas sample measured by the dry gas meter at meter conditions dcf 63136 47088

Y = Dry gas meter calibration factor (based on full calibration) 09972 09972Delta H = Dry Gas meter orifice calibration coefficient in H2O 18715 18715

avg SQRT Delta H = Avg SQRT press drop across the orifice meter during sampling in H2O 11783 09984O = Total sampling time minutes 96 84

Yqa = (O Vm ) SQRT ( 00319 Tma 29 ) ( Delta H Pm MWd ) avg SQRT Delta H

Yqa = ( 9600 6314 ) SQRT ( 00319 51704 29 ) ( 187 3012 2884 ) 118

Yqa = 1521 SQRT 478315 1625473 118

Yqa = 09719 09742

Diff = Absolute difference between Yqa and Y 254 231

Diff = (( Y - Yqa ) Y ) 100

Diff = (( 09972 - 0972 ) 09972 ) 100

Average Diff = 243

Allowable = 50

1220201119 AM 112219 Div Stack M0010171

Long Cal Vost Box 5 11-29-18

Calibrator PM VOST Box Number VOST 5 Ambient Temp 72

Date 29-Nov-18 Wet Test Meter Number 10BB-1 Temp Reference Source

Dry Gas Meter Number 3605443

Resultsin H20

(∆H)liters (Vw)

liters (Vd)

oF (Tw)

Outlet oC (Tdo)

Inlet oC (Tdi)

Average oF (Td)

Time min (O)

Y

0000 2000 20004890 2050 20504890 2025 21600000 2050 20509772 2100 21009772 2075 22800000 2220 222014768 2220 222014768 2220 22200000 2280 228020034 2280 228020034 2280 2280

Average 10088

Vw - Gas Volume passing through the wet test meter 0 - Time of calibration runVd - Gas Volume passing through the dry gas meter Pb - Barometric PressureTw - Temp of gas in the wet test meterTdi - Temp of the inlet gas of the dry gas meter

Tdo - Temp of the outlet gas of the dry gas meterTd - Average temp of the gas in the dry gas meter

oC oF1 2 3 4 5 60 0 0 0 00 00

100 100 100 100 1000 00500 500 500 500 5000 001000 1000 1000 1000 10000 00

1 - Channel Temps must agree with +- 5oF or 3oC

2 - Acceptable Temperature Difference less than 15

Wet Test Meter

Dry gas MeterWet Test

Meter

Gas Volume

50045 725

10154

685 102 10137

695085 100

2975

730 200 09943

110 10118

100

720

Dry Gas Meter

Temperatures

20 200

725

725

150 72515 17

Setting

Roto-meter

Liters per minute

12

Orifice Manometer

120

Long Cal and Temperature Cal Datasheet for VOST Dry Gas Meter Console

∆H - Pressure differential across orifice

Y - Ratio of accuracy of wet test meter to dry gas meter

Thermocouple Simulator

(Accuracy +- 1oF)

Baro Press in Hg ( Pb)

20 23

050 070

100

Temp

Difference 2 ()

Average Temperature

Reading

0

500100

1000

Channel Number

Temperature Reading from Individual Thermocouple Input 1

Select Temperature

Reference Temperature

( ) ( )

( )( ) 2

Vw

O460tw

460tdPb

H03170H

460tw613

HPbVd

)460td(PbVwY

lowast+

lowast

+lowast∆lowast

=∆

+lowast

+lowast

+lowastlowast=

( )( ) ( )( )( )

+

+minus+=

460FTempferenceRe

460FTempTest460FTempferenceReDiffTemp

o

oo

172

Long Cal Vost Box 8 9_21_2019

Calibrator MDW VOST Box Number VOST 8 Ambient Temp 73

Date 21-Sep-19 Wet Test Meter Number 10BB-1 Temp Reference Source

Dry Gas Meter Number 3602380

Resultsin H20

(∆H)liters (Vw)

liters (Vd)

oF (Tw)

Outlet oC (Tdo)

Inlet oC (Tdi)

Average oF (Td)

Time min (O)

Y

0000 2400 24002999 2400 24002999 2400 24000000 2400 24008960 2400 24008960 2400 24000000 2400 24009934 2400 24009934 2400 24000000 2400 240018700 2400 240018700 2400 2400

Average 10088

Vw - Gas Volume passing through the wet test meter 0 - Time of calibration runVd - Gas Volume passing through the dry gas meter Pb - Barometric PressureTw - Temp of gas in the wet test meterTdi - Temp of the inlet gas of the dry gas meter

Tdo - Temp of the outlet gas of the dry gas meterTd - Average temp of the gas in the dry gas meter

oC oF1 2 3 4 5 632 32 32 32 320 00212 212 212 212 2120 00932 932 932 932 9320 001829 1829 1829 1829 18290 01

1 - Channel Temps must agree with +- 5oF or 3oC

2 - Acceptable Temperature Difference less than 15

Wet Test Meter

Dry gas MeterWet Test

Meter

Gas Volume

30000 720

10093

750 118 10060

750035 90

3008

710 99 10099

100 10099

178

750

Dry Gas Meter

Temperatures

170 190

720

720

100 720

050

10 10

Setting

Roto-meter

Liters per minute

100

Orifice Manometer

050

1832

Long Cal and Temperature Cal Datasheet for VOST Dry Gas Meter Console

∆H - Pressure differential across orifice

Y - Ratio of accuracy of wet test meter to dry gas meter

Thermocouple Simulator

(Accuracy +- 1oF)

Baro Press in Hg ( Pb)

20 20

025 025

Channel Number

Temperature Reading from Individual Thermocouple Input 1 Temp

Difference 2 ()

Average Temperature

Reading

32

932212

Select Temperature

Reference Temperature

( ) ( )

( )( ) 2

Vw

O460tw

460tdPb

H03170H

460tw613

HPbVd

)460td(PbVwY

lowast+

lowast

+lowast∆lowast

=∆

+lowast

+lowast

+lowastlowast=

( )( ) ( )( )( )

+

+minus+=

460FTempferenceRe

460FTempTest460FTempferenceReDiffTemp

o

oo

173

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

APPENDIX F LIST OF PROJECT PARTICIPANTS

174

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

The following WESTON employees participated in this project

Paul Meeter Senior Project Manager

Jeff OrsquoNeill Senior Project Manager

Wes Fritz Senior Project Manager

Matt Winkeler Team Member

Kyle Schweitzer Team Member

Brandon Berger Team Member

175

  • ADPB5DBtmp
    • FIELD DATA CALCS
    • SemiVol Results
      • ADPD0DEtmp
        • Data input
        • results
          • ADP152tmp
            • SEMIVOLCALC
              • ADPD8Ftmp
                • Data input
                • results
                  • ADP2D63tmp
                    • results
                      • ADP5868tmp
                        • Data input
                          • ADPE9F3tmp
                            • results
                              • ADP2499tmp
                                • Data input
                                • results
                                  • ADP6F7Etmp
                                    • Data input
                                    • results

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 i

TABLE OF CONTENTS

Section Page

1 INTRODUCTION1

11 FACILITY AND BACKGROUND INFORMATION 1

12 TEST OBJECTIVES 1

13 TEST PROGRAM OVERVIEW 1

2 SUMMARY OF TEST RESULTS 4

3 PROCESS DESCRIPTIONS 6

31 FLUOROMONOMERS 6

32 PROCESS OPERATIONS AND PARAMETERS 6

4 DESCRIPTION OF TEST LOCATIONS 7

41 DIVISION STACK 7

5 SAMPLING AND ANALYTICAL METHODS 9

51 STACK GAS SAMPLING PROCEDURES 9

511 Pre-Test Determinations 9

52 STACK PARAMETERS 9

521 EPA Method 00109 522 EPA Method 0010 Sample Recovery 11 523 EPA Method 0010 Sample Analysis13

53 MM18 15

54 GAS COMPOSITION 17

6 DETAILED TEST RESULTS AND DISCUSSION 19 APPENDIX A PROCESS OPERATIONS DATA

APPENDIX B RAW AND REDUCED TEST DATA

APPENDIX C LABORATORY ANALYTICAL REPORT

APPENDIX D SAMPLE CALCULATIONS

APPENDIX E EQUIPMENT CALIBRATION RECORDS

APPENDIX F LIST OF PROJECT PARTICIPANTS

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 ii

LIST OF FIGURES

Title Page

Figure 4-1 Division Stack Test Port and Traverse Point Location 8

Figure 5-1 EPA Method 0010 Sampling Train 10

Figure 5-2 HFPO Dimer Acid Sample Recovery Procedures for Method 0010 14

Figure 5-3 Modified EPA Method 18 Sampling Train 16

Figure 5-4 WESTON Sampling System 18

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 iii

LIST OF TABLES

Title Page

Table 1-1 Sampling Plan for Division Stack 3

Table 2-1 Summary of HFPO Dimer Acid Division Stack Test Results 4

Table 2-2 Summary of Target Compound Division Stack Test Results 4

Table 6-1 Summary of HFPO Dimer Acid Test Data and Test Results Division Stack ndash M0010

Runs 1 and 2 20

Table 6-2 Summary of Target Compound Test Data and Test Results Division Stack ndash MM18

Runs 1 2 and 3 22

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 1

1 INTRODUCTION

11 FACILITY AND BACKGROUND INFORMATION

The Chemours Fayetteville Works (Chemours) is located in Bladen County North Carolina

approximately 10 miles south of the city of Fayetteville Chemours operating areas on the site

include the Fluoromonomers IXM and Polymers Processing Aid (PPA) manufacturing areas

Wastewater Treatment and Powerhouse

Chemours contracted Weston Solutions Inc (Weston) to perform HFPO Dimer Acid Fluoride

captured as HFPO Dimer Acid and other target compound emission testing on the Division

stack at the facility Testing was performed on 22 November and 4 December 2019 and generally

followed the ldquoEmission Test Protocolrdquo reviewed and approved by the North Carolina

Department of Environmental Quality (NCDEQ) This report provides the results from the

emission test program

12 TEST OBJECTIVES

The specific objectives for this test program were as follows

Measure the emissions concentrations and mass emissions rates of HFPO Dimer Acid Fluoride and other target compounds from the Division stack which is located in the Fluoromonomers process area

Monitor and record process and emissions control data in conjunction with the test program

Provide representative emissions data

13 TEST PROGRAM OVERVIEW

During the emissions test program the concentrations and mass emissions rates of HFPO Dimer

Acid and other target compounds were measured at the Division stack

Table 1-1 provides a summary of the test location and the parameters that were measured along

with the samplinganalytical procedures that were followed

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 2

Section 2 provides a summary of test results A description of the processes is provided in

Section 3 Section 4 provides a description of the test locations The sampling and analytical

procedures are provided in Section 5 Detailed test results and discussion are provided in

Section 6

Appendix C includes the summary reports for the laboratory analytical results The full

laboratory data packages are provided in electronic format

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 4

2 SUMMARY OF TEST RESULTS

A total of three MM18 and two M0010 test runs were performed on the Division stack Table 2-1

provides a summary of the HFPO Dimer Acid emissions test results associated with M0010

Table 2-2 provides a summary of the target compound emissions test results associated with

MM18 Detailed test results summaries are provided in Section 6

It is important to note that emphasis is being placed on the characterization of the emissions

based on the M0010 stack test results Research conducted in developing the protocol for stack

testing HFPO Dimer Acid Fluoride HFPO Dimer Acid Ammonium Salt and HFPO Dimer Acid

realized that the resulting testing including collection of the air samples and extraction of the

various fraction of the sampling train would result in all three compounds being expressed as

simply the HFPO Dimer Acid However it should be understood that the total M0010 HFPO

Dimer Acid results provided in Table 2-1 and in this report include a percentage of each of the

three compounds

Table 2-1 Summary of M0010 HFPO Dimer Acid Division Stack Test Results

Division Stack ndash M0010 gsec lbhr

R1 194E-04 154E-03 R2 339E-04 269E-03 Average 266E-04 212E-03

Samples taken using MM18 were analyzed for the following volatile organic compounds (ldquotarget

compoundsrdquo) HFPO Dimer Methyl Ester as HFPO (HFPO Dimer Methyl Ester) 2-MTP as

HFPO (HFPO Monomer) Heptafluoropropyl 1222-tetrafluoroethyl ether (Fluoroether E-1)

Carbonyl Difluoride Total Fluorine and Hydrogen Fluoride Results of MM18 target compound

analysis are provided in Table 2-2

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 5

Table 2-2 Summary of MM18 Target Compound Division Stack Test Results

Target Compound

Division Stack MM18 Run 1

Division Stack MM18 Run 2

Division Stack MM18 Run 3

gsec lbhr gsec lbhr gsec lbhr HFPO Dimer Methyl Ester

lt438E-03 lt348E-02 lt260E-03 lt207E-02 lt263E-03 lt209E-02

HFPO Monomer

374E-01 297E+00 315E-01 250E+00 192E+00 153E+01

Fluoroether E-1

291E-02 231E-01 667E-02 530E-01 241E-02 192E-01

Carbonyl Difluoride

lt134E-02 lt106E-01 lt796E-03 lt633E-02 lt803E-03 lt638E-02

Total Fluorine

727E+00 578E+01 594E+00 472E+01 140E+01 111E+02

Hydrogen Fluoride

lt182E-01 lt145E+00 lt109-01 lt863E-01 lt110E-01 lt870E-01

Note All lt values were below the laboratory analysis detection limits Emission rates were calculated using the method detection limit (MDL) for the first analytical fraction of the target compound

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 6

3 PROCESS DESCRIPTIONS

The Fluoromonomers area is included in the scope of this test program

31 FLUOROMONOMERS

These facilities produce a family of fluorocarbon compounds used to produce Chemours

products such as Nafionreg Krytoxreg and Vitonreg as well as sales to outside customers

At the time of testing process emissions were vented to the Division waste gas scrubber system

(which included the secondary scrubber) and vented to the Carbon Bed and then into the

Division stack The VE North building air systems were vented to the Carbon Bed and then into

the Division stack

32 PROCESS OPERATIONS AND PARAMETERS

The following table is a summary of the operation and products from the specific areas tested

Source OperationProduct Batch or Continuous VE North

PPVE Condensation is continuous Agitated Bed Reactor and Refining are batch

During the test program the following parameters were monitored by Chemours and are

included in Appendix A

Fluoromonomers Process o VEN Precurser Rate o VEN Condensation Rate o VEN ABR Rate

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 7

4 DESCRIPTION OF TEST LOCATIONS

41 DIVISION STACK

Two 6-inch ID test ports were installed on the 36-inch ID fiberglass stack as shown below The

four vents that enter the top of the stack and the one vent ~11 feet below are catch pots which

under normal process operations do not discharge to the stack They are used to vent process gas

to the stack in the event of a process upset and are not considered a flow contributor or a

disturbance

Per EPA Method 1 a total of 12 traverse points (six per axis) were used for M-0010 isokinetic

sampling Figure 4-1 provides a schematic of the test ports and traverse point locations

Location Distance from Flow Disturbance Downstream (B) Upstream (A)

Division Stack 30 feet gt 10 duct diameters

9 feet gt 3 diameters

The EPA Method 18 sample was collected at a constant rate at a single point at the approximate

center of the stack

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 9

5 SAMPLING AND ANALYTICAL METHODS

51 STACK GAS SAMPLING PROCEDURES

The purpose of this section is to describe the stack gas emissions sampling trains and to provide

details of the stack sampling and analytical procedures utilized during the emissions test

program

511 Pre-Test Determinations

Preliminary test data were obtained at the test location Stack geometry measurements were

measured and recorded and traverse point distances verified A preliminary velocity traverse

was performed utilizing a calibrated S-type pitot tube and an inclined manometer to determine

velocity profiles Flue gas temperatures were observed with a calibrated direct readout panel

meter equipped with a chromel-alumel thermocouple Preliminary water vapor content was

estimated by wet bulbdry bulb temperature measurements

A check for the presence or absence of cyclonic flow was previously conducted at the test

location The cyclonic flow check was negative (lt 20deg) verifying that the test location was

acceptable for testing

Preliminary test data was used for nozzle sizing and sampling rate determinations for isokinetic

sampling procedures

Calibration of probe nozzles pitot tubes metering systems and temperature measurement

devices was performed as specified in Section 5 of EPA Method 5 test procedures

52 STACK PARAMETERS

521 EPA Method 0010

The sampling train utilized to perform the HFPO Dimer Acid sampling at the location was an

EPA Method 0010 train (see Figure 5-1) The Method 0010 consisted of a borosilicate nozzle

that attached directly to a heated borosilicate probe In order to minimize possible thermal

degradation of the HFPO Dimer Acid the probe and particulate filter were heated above stack

temperature to minimize water vapor condensation before the filter The probe was connected

directly to a heated borosilicate filter holder containing a solvent extracted glass fiber filter

18

10

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 11

A section of borosilicate glass or flexible polyethylene tubing connected the filter holder exit to a

Grahm (spiral) type ice water-cooled condenser an ice water-jacketed sorbent module containing

approximately 40 grams of XAD-2 resin The XAD-2 resin tube was equipped with an inlet

temperature sensor The XAD-2 resin trap was followed by a condensate knockout impinger and

a series of two impingers that contained 100 mL of high-purity distilled water The train also

included a second XAD-2 resin trap behind the impinger section to evaluate possible sampling

train breakthrough Each XAD-2 resin trap was connected to a 1-liter condensate knockout trap

The final impinger contained 300 grams of dry pre-weighed silica gel All impingers and the

condensate traps were maintained in an ice bath Ice water was continuously circulated in the

condenser and the XAD-2 module to maintain method-required temperature A control console

with a leakless vacuum pump a calibrated orifice and dual inclined manometers was connected

to the final impinger via an umbilical cord to complete the sample train

HFPO Dimer Acid Fluoride (CAS No 2062-98-8) that is present in the stack gas is expected to

be captured in the sampling train along with HFPO Dimer Acid (CAS No 13252-13-6) HFPO

Dimer Acid Fluoride underwent hydrolysis instantaneously in water in the sampling train and

during the sample recovery step and was converted to HFPO Dimer Acid such that the amount

of HFPO Dimer Acid emissions represented a combination of both HFPO Dimer Acid Fluoride

and HFPO Dimer Acid

During sampling gas stream velocities were measured by attaching a calibrated S-type pitot tube

into the gas stream adjacent to the sampling nozzle The velocity pressure differential was

observed immediately after positioning the nozzle at each traverse point and the sampling rate

adjusted to maintain isokineticity at 100 plusmn 10 Flue gas temperature was monitored at each

point with a calibrated panel meter and thermocouple Isokinetic test data was recorded at each

traverse point during all test periods as appropriate Leak checks were performed on the

sampling apparatus according to reference method instructions prior to and following each run

component change (if required) or during midpoint port changes

522 EPA Method 0010 Sample Recovery

At the conclusion of each test the sampling train was dismantled the openings sealed and the

components transported to the field laboratory trailer for recovery

A consistent procedure was employed for sample recovery

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 12

1 The two XAD-2 covered (to minimize light degradation) sorbent modules (1 and 2) weresealed and labeled

2 The glass fiber filter(s) were removed from the holder with tweezers and placed in apolyethylene container along with any loose particulate and filter fragments

3 The particulate adhering to the internal surfaces of the nozzle probe and front half of thefilter holder were rinsed with a solution of methanol and ammonium hydroxide into apolyethylene container while brushing a minimum of three times until no visibleparticulate remained Particulate adhering to the brush was rinsed with methanolammonium hydroxide into the same container The container was sealed

4 The volume of liquid collected in the first condensate trap was measured the valuerecorded and the contents poured into a polyethylene container

5 All train components between the filter exit and the first condensate trap were rinsed withmethanolammonium hydroxide The solvent rinse was placed in a separate polyethylenecontainer and sealed

6 The volume of liquid in impingers one and two and the second condensate trap weremeasured the values recorded and the sample was placed in the same container as Step 4above then sealed

7 The two impingers condensate trap and connectors were rinsed with methanolammonium hydroxide The solvent sample was placed in a separate polyethylenecontainer and sealed

8 The silica gel in the final impinger was weighed and the weight gain value recorded

9 Site (reagent) blank samples of the methanolammonium hydroxide XAD resin filterand distilled water were retained for analysis

Each container was labeled to clearly identify its contents All samples were maintained cool

Following sample recovery all samples were transported to Eurofins TestAmerica

(TestAmerica) for sample extraction and analysis

See Figure 5-2 for a schematic of the Method 0010 sample recovery process

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 13

523 EPA Method 0010 Sample Analysis

Method 0010 sampling trains resulted in four separate analytical fractions for HFPO Dimer Acid

analysis according to SW-846 Method 3542

Front-half Compositemdashcomprised of the particulate filter and the probe nozzle and

front-half of the filter holder solvent rinses

Back-half Compositemdashcomprised of the first XAD-2 resin material and the back-half of

the filter holder with connecting glassware solvent rinses

Condensate Compositemdashcomprised of the aqueous condensates and the contents of

impingers one and two with solvent rinses

Breakthrough XAD-2 Resin Tubemdashcomprised of the resin tube behind the series of

impingers

The second XAD-2 resin material was analyzed separately to evaluate any possible sampling

train HFPO-DA breakthrough

The front-half and back-half composites and the second XAD-2 resin material were placed in

polypropylene wide-mouth bottles and tumbled with methanol containing 5 NH4OH for 18

hours Portions of the extracts were processed analytically for the HFPO dimer acid by liquid

chromatography and duel mass spectroscopy (HPLCMSMS) The condensate composite was

concentrated onto a solid phase extraction (SPE) cartridge followed by desorption from the

cartridge using methanol Portions of those extracts were also processed analytically by

HPLCMSMS

18

3

14

VACUUM LINEMAINVALVE

TEMPERATURESENSORS

BY-PASS VALVE

DRY GASMETER

CUBIC LITERS

ORIFICE

VACUUMGAUGE

AIR-TIGHT

PUMP

DRY ICE AND METHANOL

BATH

METHANOL IN EACH IMPINGER

FIGURE 5-3MODIFIED EPA METHOD 18 SAMPLING TRAIN FOR PFAS COMPOUNDS

GLASS IMPINGERS

STACK WALL

PLASTIC OR GLASS PROBE

PRESSUREDIFFERENTIAL

GAUGE

8 3 18

16

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 17

54 GAS COMPOSITION

The Weston mobile laboratory equipped with instrumental analyzers was used to measure carbon

dioxide (CO2) and oxygen (O2) concentrations A diagram of the Weston sampling system is

presented in Figure 5-4

For the Division stack test campaign the sample was collected at the exhaust of the Method

0010 sampling system At the end of the line a tee permitted the introduction of calibration gas

The sample was drawn through a heated Teflonreg sample line to the sample conditioner The

output from the sampling system was recorded electronically and one minute averages were

recorded and displayed on a data logger

Each analyzer was set up and calibrated internally by introduction of calibration gas standards

directly to the analyzer from a calibration manifold The calibration manifold is designed with an

atmospheric vent to release excess calibration gas and maintained the calibration at ambient

pressure The direct calibration sequence consisted of alternate injections of zero and mid-range

gases with appropriate adjustments until the desired responses were obtained The high-range

standards were then introduced in sequence without further adjustment

The sample line integrity was verified by performing a bias test before and after each test period

The sampling system bias test consisted of introducing the zero gas and one up-range calibration

standard in excess to the valve at the probe end when the system was sampling normally The

excess calibration gas flowed out through the probe to maintain ambient sampling system

pressure Calibration gas supply was regulated to maintain constant sampling rate and pressure

Instrument bias check response was compared to internal calibration responses to insure sample

line integrity and to calculate a bias correction factor after each run using the ratio of the

measured concentration of the bias gas certified by the calibration gas supplier

The oxygen and carbon dioxide content of each stack gas was measured according to EPA

Method 3A procedures which incorporate the latest updates of EPA Method 7E A Servomex

Model 4900 analyzer (or equivalent) was used to measure oxygen content A Servomex Model

4900 analyzer (or equivalent) was used to measure carbon dioxide content of the stack gas Both

analyzers were calibrated with EPA Protocol gases prior to the start of the test program and

performance was verified by sample bias checks before and after each test run

I

4

184

18

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 19

6 DETAILED TEST RESULTS AND DISCUSSION

M0010 test run number two was stopped prior to the full run time due to a process upset in the

area The run was considered complete and the sample was recovered and submitted for analysis

A total of two M0010 test runs were performed at the location A total of three MM18 test runs

were performed at the location

Table 6-1 provides detailed M0010 test data and test results for Division stack Table 6-2

provides detailed MM18 test data and test results for the Division stack

The Method 3A sampling indicated that the O2 and CO2 concentrations were at ambient air

levels (209 O2 0 CO2) therefore 209 O2 and 0 CO2 values were used in all

calculations

It should be noted that methylene chloride was identified in the MM18 analytical results This

detection was due to a special procedure done in the process area in which methylene chloride

was used to unplug equipment that experienced plugging during testing Methylene chloride

would not typically be detected in this process area

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

APPENDIX A PROCESS OPERATIONS DATA

24

Division

Date 11222019TimeStack TestingHFPOVEN ProductVEN PrecursorVEN Condensation (HFPO)VEN ABRVEN RefiningStripper Column VentDivision WGS Recirculation FlowDivision WGS Inlet Flow

Date 1242019TimeStack TestingHFPOVEN ProductVEN PrecursorVEN Condensation (HFPO)VEN ABRVEN RefiningStripper Column VentDivision WGS Recirculation FlowDivision WGS Inlet Flow

800 900 1000 1100 1300 1400 1500 1600RUN 1 0826-1022 RUN 2 - 1139-1320

1200

PPVE

Burnout

15000 kgh142 kgh 145 kgh 148 kgh 150 kgh 135 kgh 128 kgh 74 kgh103 kgh

RUN 3 0955-1125

PPVE

800 900 1000 1100

15000 kgh65 kgh 73 kgh 110 kgh

25

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

APPENDIX B RAW AND REDUCED TEST DATA

26

Sample and Velocity Traverse Point Data Sheet - Method 1

Client CJtl 11 eAAI Operator Loact1onPlant Vltf t fcu I le v Date 2J- l

Source ( v ) _5 -rj(L W O Number JT(t O

Duct Type Circular D Rectangular Duct Indicate eppropMate type

Traverse Type II( Particulate Traverse D Velocity Traverse D CEM Traverse

Distance from far wall to outside of oort lln l = C ltdeglt ) Flow Disturbances -

Port Deoth (in) = D 121 ur Upstream - A (ft) (1 (t I

Deoth or Duct diameter (inI= C-D I (I Area of Duct (ff) -11 7 01 - - --

Total Traverse Points 1 I tJ fa

Total Traverse Points oer Port

Port Diameter flnl-Flanae-Threaded-Holel l I

Monorail Lenoth t) Rectangular Ducts Onty

Width of Duct rectanaular duct only (In I Total Ports (rectanoular duct only) Eauivalent Diameter= 12middotL Wl(L+W)

Traverse Point Locations

Distance from Traverse Inside Duct Distance1from Outside of

Point of Duct Wallinl Portin)

1 1 i I 1- I b2 jtmicro 1poundgt

2 ( gt-0 h A il1

l y gtf-uir 7 vr

3 21 I09S- timiddot 1T 1e 1 tJ lDI 1

Igt 4 7 V

5

6

7

8

10

11

12

1

2

3

9S i 31 9 l- t

Cf5lv 35)7 $ f

- L

4Mre (

CEM 3 Polnl(Long Measurmbullnt Unbull) StraUflcaton POnt Locations

0167

050

0833 Note If stack dla lt 12 inch use EPA Method 1A

(Sample port upstream of pilot port) Note stack dia gt24 then adjust traverse point to 1 inch from wall

If stack dia lt24 then adjust traverse point to 05 inch from wall

l 2 T I 146

r 2 854 ) L

4 bull 0

r C 5 bull a 6 o I 7

8 p 0 o n 9

I 10

n II 12

Traverso Point Location Ptrcant of Stack Circular

J 4

67

25

75

i

NwnberofT IPoints 5 6 8

44 32

146 tQ5

296 194

704 123

854 677

956 8D6

895

96B

9 10

26

82 146

226

)42

658

774

1154 918

974

ll

tfltr

middotltt

12

21

67 118 111

25

l56

644

15

823

w 9)3

979

Downstream - B (ft) -

91 Qt

Upstream - A (duct diameters t

Downstream - B duct diameters) 61Diagram of Stack

11 _ ---

ltl Igt-

ry middoti 5D -

j

--

Duct 0middot1ameters Upstream from Flow Disturbance (Distance A

05 1 0 1 5 20 25 50

I I I I I I I

Stack Diametergt 24 Inches deg t

40 - A

plusmn --- -middot

Minimum Number cf bull

l

JO -Particulate Traverse Points

l _

24 (chular) 25 (mctangulw dlJdltl)

20 -

Traverse Polllls for Velocity 16

12

I 10 _ Disturbance =Band Expansion Contraction etc

B(tmJiir)lilj

S1adDlaarDti1224Rnefl

4

Duct Dlemehn Downstraam from Acv Dl1furbance (Olslenca B)

Travers Point Location Panent of Stack ootanaular

NIJlber ofTnrne Polnls I 2 l 4 5 6 7 8 9 10 II ll

T I 250 167 125 100 8J 71 6J 56 50 45 41

2 7SO 51l0 31J 300 25J ZIA 18J 167 ISII llli 11l J 8) 3 625 500 417 )57 JU 278 250 227 208 l

4 75 70I ID 5110 431 IU 310 318 29Z o 5 900 750 60 563 500 4SO 409 Jll a 6 911 JU 611 U ru tea 458 I 7 C29 813 722 650 91 l4l

i tu w 750 42 ill p 0

o n i 944 850 m 708 I 10 i5JI 1164 191

II 955 875 12 JJI

27

CHEMOURS - FAYETTEVILLE NCINPUTS FOR HFPO DIMER ACID CALCULATIONS

DIVISION STACK

Test DataRun number 1 2Location Divison Stack Divison StackDate 112219 112219Time period 0826-1022 1139-1324Operator BB BB

Inputs For CalcsSq rt delta P 145039 122804Delta H 14025 10010Stack temp (degF) 716 794Meter temp (degF) 570 652Sample volume (act) 63136 47088Barometric press (inHg) 3002 3002Volume H2O imp (ml) 100 70Weight change sil gel (g) 244 145 CO2 00 00 O2 209 209 N2 791 791Area of stack (sqft) 7070 7070Sample time (min) 960 840Static pressure (inH2O) -035 -035Nozzle dia (in) 0160 0160Meter box cal 09972 09972Cp of pitot tube 084 084Traverse points 12 12

122020 1102 AM 112219 Div Stack M001028

ISOKINETIC FIELD DATA SHEET EPA Method 0010 - HFPO Dimer Acid Page J~ orb client chemours Stack Conditions Meter Box ID K Factor Q wo 15418002018 Assumed Actual MeterBox Y rjq7 a Project ID Chemours Moisture ^~ 3 Meter Box Del H ~ $j ~~ Illltlal Mid-Point Final ModeSource ID Division Impinger Vol (ml) Probe ID Length L~~ ~ Sample Train (ft3) o o D 5 GAO U (~(~ Samp Loc ID STK Silica gel (g) Probe Material ~Boro Leak Check (in Hg) `~ ~ S ~~ ~

Run NoID 1 CO2 deg by Vol Q Pitot Thermocouple ID Pitot leak check good yes no no no Test Method ID M0010 02 by Vol ~ ~ Pitot Coe~cient 84~r Pitot Inspection good no ye no no Date ID NOV2019 Temperature (degF) ~ Noale ID ~~ Method 3 System good yes no yes no yes no SourceLocation Div(sion Stack Meter Temp (F) l~ Noale Measurements ~ 6 p ~ LO Temp Check re-Test Set POSt-Test Set Sample Date ~ Static Press (in H2O) mdash ~ 3 ~j ~J Avg Noale Dia (in) ~ ~ 6 bull ~ Meter Box Temp

Baro Press (in Hg) Area of Stack (ftz) Q~ Reference Temp Operator Ambient Temp (degF) ~ ~ Sample Time `~ (~ PasslFail (+- 2deg~ Pass Fail Pass Fail

Total Traverse Pts ~ a Temp Change Response ~ yes no yes no

~~r~~~-

~~mdash~~ ~ ~ ~ ~ ~ i ~~~~mdash

~~-~~~Itibull1~~~ bull ~~~~~~~_~~

~~-~ I ~~~~~~~~~- ~~~

avg uena r ( vvg uerca ry

a ~ ~Ib J Ava Sart Delta P Avo Sart Dei t

i oral vowme~ ( b vvg i s

~~~ nments

J ~lr ~ ~~~~13~

J

vvg i m J rvun~nnax rvunlnnax nnax rwax vac nnin~rv~ax

~~ d ltltu~~~~ te6~~~~( sq g H~ly~ EPA Method 0010 from EPA SW- 46

(~ Q~ ~~~ 29

ISOHINETIC FIELD DATA SHEET EPA Method 0010 - HFPO Dimer Acid Page ~ or 1 Client Chemours Stack Conditions Meter Box ID qq~ ~ K Factor ~ 6 WO 15418002018 Assumed Actual Meter Box Y Project ID Chemours Moisture ~ Meter Box Del H ( gj ~ Init181 Mid-Point FIn81 ModeSource ID Division Impinger Vol (ml) Probe ID Length H q 4 ~ 6~ Sample Train (ft3) ~ Oo ~ jj ~ Samp Loc ID STK Silica gel (g)

mdash~ Probe Material Boro Leak Check (in Hg) ~

Run NoID 2 CO2 by Vol Pitot Thermocouple ID Pitot leak check good ~ no e no yes np Test Method ID M0010 02 deg by Vol ~ q Pitot Coefficient 084 Pitot Inspection good no e no yes no Date ID S L

NOV2019 Temperature (degF) MeterT m F

~~ Noale ID Method 3 S stem ood Y 9 Yes no yes no yes no ource ovation Diviswn Stack e P ( ) Noale Measurements I b~ ~ 60 ~ (~ Temp Check Pre-Test et Post-Test Set

Sample Date ~ ~ a mdash ( Static Press (in Hz0) mdash~ 3 Avg Noale Dia (in) ( ~ Meter Box Temp Baro Press (in Hg) Q Area of Stack (ft2) Reference Temp Operator Ambient Temp (degF) SQ Sample Time _q~-- `~j PassFail (+- 2deg) Pass Fail Pass Fail

Total Traverse Pts ~ ~ Temp Change Response yes no ves no

bull

mdash~~~~ ~ bull

~~~~--- ~~~

~~mdash~~ ~ r ~ ~~~~~-

1~__2~ 000~5~

Avg Sgrt Delta P Avg Sgrt Del

t-~`~~5 ~~~~~~~

bully bull~ r ~~~~~~~~a~ miuimnn man max vac mnuPnax

~~ flg~ ~1q~1 lo ~-- QOIl2(o g3(tl5 (a~ (v ~I`b~(o0 Comments EPA Method 0010 from EPA SW-846

_ t~~ ~~_~- 30

12120201028 AM 112219 Div Stack MM18

TEST DATA Test run number 1 2 3 Location Division Stack Division Stack Division Stack Test date 112219 112219 12419 Test time period 0826-1022 1139-1318 0955-1125Operator WF WF KS

SAMPLING DATA Duration minutes 84 78 90 Average dry gas meter press in H2O 341 356 500 Average dry gas meter temp deg F 549 6600 5450 Average absolute meter temp deg R 5149 5260 5145 Sample vol at meter cond dcl 143580 147394 159313 Meter box calibration Y 09996 09996 10140 Barometric pressure in Hg 3002 3002 3012 Sample volume dscl (1) 148843 149624 168860 Sample volume dscf (1) 5256 5283 5963

VOLUMETRIC FLOW RATE Avg gas stream volumetric flow dscfmin 33787 28485 31136

(1) Standard conditions = 68 deg F (20 deg C) and 2992 inches Hg (760mm Hg)

CHEMOURS-FAYETTEVILLE NCINPUTS FOR EPA MM18 TARGET COMPOUND CALCULATIONS

DIVISION STACK

32

FIELD DATA SHEET Client Chemours Run No

WO 15418002018 Test Method

Project ID CHEM-F Date

ModeSource ID Division Baro Press (in Hg)

Samp Loc Stack Ambient Temp (degF)

Source Division Stk Operator

Sample Time Comments Initial Probe Leak check

Final Probe Leak check

MM 1 S - HFPO Diener Acid Page ~ of ~ 1 Meter Box ID

Modified M18 Meter Box Y Q G

Nov 2019 Probe IDLength Leak Check (in Hg) (~~~ ~bdquo~~~ I I (~Q (1~~ ~

3Q (~Z Probe Material Pitot leak check good yecLpry yes no y~uc_Law

bull ~

~~- ~~ ~~

~ ~~ ~ --~

------ --

Avg Delta H Total Volume Avg Tm Max Temp Max Vac Max Temp

33

FIELD DATA SHEET Client

W O

Project ID

ModeSource ID

Samp Loc

Source

Comments

Chemours Run No

15418002018 Test Method

CHEM-F Date

Division Baro Press (in Hg)

Stack Ambient Temp (degF)

Division Stk Operator

Sample Time

Initial Probe Leak check Final Probe Leak check

MM 18 - HFPO Dimer Acid 2 Meter Box ID ~0

Modified M18 Meter Box Y G~ ~+ Nov 2019 Probe IDLength Leak Check (in Hg)

~(~ p ~ Probe Material Pitot Teak check good

da W

~~ ~laquo

Page ~ of

pJCH ~~~

yes no yes no

~~~~ r ~~~rl~~~f~r~~~~ ~ ~ ~m~ - ~c~1 ~~~P~~~~i~ ~ ~m~ ~~~c~~~~~l~~~~ ~

m ~ ~_-1

~~bulls~s7xix~~rax a

Hvg ueita n ~ i otai volume

35~ ~ I~1~~ Hvg i m Hoax I emp Max Vac Max Temp

l~ ~

34

~~v S~~-~Ll~

SAMPLE RECOVERY FIELD DATA

Client r~i4 ~`~ WO LocationPlant ~ ~~ bdquomdash r Source ampLocation J I~

Run No Sample Date ~~~~ ~ Recovery Date gt ~

Sample ID ~ ~~(~ Analyst ~ ~ Filter Number

Im in er 1 2 3 4 5 6 7 Im Total 8 Total

Contents Silica Gel

Final ~~ ~~j~zj ~ ~~7i ~ ~

~ `~ 1

Initial ~ G~ ~~ ~ ~ ~~ ~ ~ ~ utJ~ ~d

ca~~ I3 ~- -_~ i ImpingerColor ~A~ j~=~~ Labeled

mdash~ Silica Gel Condition Sealed

Run No ~ Sample Date ~ ~~ Recovery Date ~~~

Sample ID Analyst Filter Number ~~

Im in er 1 2 3 4 5 6 7 ImpTotai 8 Total

Contents Silica Gel

Final ~~r ~ 1o~i(~ ~0~ ~ ~Os

Initial ~ rs b~~~~ ~~~ ~~ Q ~~ f

Gain ~s d d

Impinger Color ~j ( ~ Labeled

Silica Gel Condition Sealed

Run No lf~ Sample Dated ~ ~ Recovery Date ~~ tmdash

Sample ID ~ Analyst Filter Number

Im in er 1 2 3 4 5 6 7 ImpTotal 8 Total

Contents Silica Gel

Final ~ t ~~r ~ b s ~ ~ 0 ~1 ~~~ b~

initial ~ ~ = ~ v b ~~gt ~ ~ ~~ - ~j

Gain ~ 4 ~G(~j~ ~ Impinger Color -~ ~ La~ed

Silica Gel Condition Sealed

Check COC for Sample IDs of Media Blanks ~ ~~

~

~~

35

FIELD DATA SHEET MM 18 Client Chemours Run No 1 Meter Box ID

WO 15418002018 Test Method Modified M18 Meter Box Y D I~

Project ID CHEM-F Date ~I Dec 2019 Probe IDLength Leak Check (in Hg)

ModeSource ID VE NoRh Baro Press (in Hg) 3~~ Probe Mate~ai Pitot leak check good Samp Loc Stack Ambient Temp (degF) O

Source Division Operator f

Sample Time ~~ M~

Comments Initial Probe Leak check ~~ a ~~pi~

Final Probe Leak check ~~i y ~r~~~p

Page ~ of

yes no yes no yes no

a~ ~a~~~ o~r~~~~

~~~ ~~~~a~ ~~~ ~

~~~~ I ~~ ~~ ~ ~ ~~~~~~~~~ ~~~~em~~

--- -- ~~-

--~ -- ~~-~ Avg Delta HJ Total Volume Avg Tm MaxTemp Max Vac Max Temp

36

SAMPLE RECOVERY FIELD DATA

Client ~ ~ lam C~1` s WO l~ 4 l~ gt~ti~- =~~ ~vi LocatioNPlant r-c~ t~ Source ampLocation ~ C JV~3c- mdash ~ y~~ ~~ 5

Run No 3 Sample Date Iz-~ ~-1 mdash j ~ Recovery Date ~~9

Sample ID Analyst Filter Number i l~ Im in er

1 2 3 4 5 6 7 Im Total 8 Total Contents Silica Gel

Final 4 ~ ~ G~ U ~O ~ ~ C1 ~~ 3 ~ _

Initial ~ ~ ~ C1~ bull ~- L ~c3~-~j ~ 13~

Gain C~ ~ d + t ~ ~ ~L O ~ ~ ~ v r C7 r

Impinger Color ______~~ Labeled r

Silica Gel Condition +~U Sealed

Run No Sample Date Recovery Date

Sample ID Analyst Filter Number

Im in er 1 2 3 4 5 6 7 ImpTotal 8 Total

Contents ~ Silica Gel

Final

Initial ~~~ ~~0 607` ~C~ ~~ ~~ ~ f3 ~3

Gain

Impinger Color Labeled

Silica Gel Condition Sealed

Run No Sample Date Recovery Date

Sample ID Analyst Filter Number

Im in er 1 2 3 4 5 6 7 ImpTotal 8 Total

Contents Silica Gel

Final

Initial

Gain

Impinger Color Labeled

Silica Gel Condition Sealed

Check COC for Sample IDs of Media Blanks ~`

k3aT~AF c

37

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

APPENDIX C LABORATORY ANALYTICAL REPORT

38

ANALYTICAL REPORTJob Number 140-17458-1

Job Description VEN Stack - M0010

Contract Number LBIO-67048

ForChemours Company FC LLC The

co AECOMSabre Building Suite 300

4051 Ogletown RoadNewark DE 19713

Attention Michael Aucoin

_____________________________________________

Approved for releaseCourtney M AdkinsProject Manager II12102019 307 PM

Courtney M Adkins Project Manager II5815 Middlebrook Pike Knoxville TN 37921

(865)291-3000courtneyadkinstestamericainccom

12102019

This report may not be reproduced except in full and with written approval from the laboratory For questions please contact the Project Manager atthe e-mail address or telephone number listed on this page

The test results in this report relate only to the samples as received by the laboratory and will meet all requirements of the methodology with anyexceptions noted This report shall not be reproduced except in full without the express written approval of the laboratory All questions should bedirected to the Eurofins TestAmerica Project Manager

This report has been electronically signed and authorized by the signatory Electronic signature is intended to be the legally binding equivalent of atraditionally handwritten signature

Eurofins TestAmerica Knoxville

5815 Middlebrook Pike Knoxville TN 37921

Tel (865) 291-3000 Fax (865) 584-4315 wwwtestamericainccom

12102019Page 1 of 21339

Table of ContentsCover Title Page 1

Data Summaries 4

Definitions 4

Method Summary 5

Sample Summary 6

Case Narrative 7

QC Association 9

Client Sample Results 11

Default Detection Limits 13

Surrogate Summary 14

QC Sample Results 15

Chronicle 18

Certification Summary 22

Manual Integration Summary 24

Organic Sample Data 25

LCMS 25

8321A_HFPO_Du 258321A_HFPO_Du QC Summary 268321A_HFPO_Du Sample Data 32Standards Data 40

8321A_HFPO_Du ICAL Data 408321A_HFPO_Du CCAL Data 63

Raw QC Data 758321A_HFPO_Du Tune Data 758321A_HFPO_Du Blank Data 808321A_HFPO_Du LCSLCSD Data 92

12102019Page 2 of 21340

Table of Contents8321A_HFPO_Du Run Logs 1058321A_HFPO_Du Prep Data 107

Method DV-LC-0012 114Method DV-LC-0012 QC Summary 115Method DV-LC-0012 Sample Data 123Standards Data 147

Method DV-LC-0012 CCAL Data 147Raw QC Data 165

Method DV-LC-0012 Tune Data 165Method DV-LC-0012 Blank Data 170Method DV-LC-0012 LCSLCSD Data 182

Method DV-LC-0012 Run Logs 198Method DV-LC-0012 Prep Data 200

Shipping and Receiving Documents 206

Client Chain of Custody 207

12102019Page 3 of 21341

DefinitionsGlossaryJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

Qualifiers

LCMSQualifier Description

LCS or LCSD is outside acceptance limits

Qualifier

B Compound was found in the blank and sample

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

GlossaryThese commonly used abbreviations may or may not be present in this report

curren Listed under the D column to designate that the result is reported on a dry weight basis

Abbreviation

R Percent Recovery

CFL Contains Free Liquid

CNF Contains No Free Liquid

DER Duplicate Error Ratio (normalized absolute difference)

Dil Fac Dilution Factor

DL Detection Limit (DoDDOE)

DL RA RE IN Indicates a Dilution Re-analysis Re-extraction or additional Initial metalsanion analysis of the sample

DLC Decision Level Concentration (Radiochemistry)

EDL Estimated Detection Limit (Dioxin)

LOD Limit of Detection (DoDDOE)

LOQ Limit of Quantitation (DoDDOE)

MDA Minimum Detectable Activity (Radiochemistry)

MDC Minimum Detectable Concentration (Radiochemistry)

MDL Method Detection Limit

ML Minimum Level (Dioxin)

NC Not Calculated

ND Not Detected at the reporting limit (or MDL or EDL if shown)

PQL Practical Quantitation Limit

QC Quality Control

RER Relative Error Ratio (Radiochemistry)

RL Reporting Limit or Requested Limit (Radiochemistry)

RPD Relative Percent Difference a measure of the relative difference between two points

TEF Toxicity Equivalent Factor (Dioxin)

TEQ Toxicity Equivalent Quotient (Dioxin)

Eurofins TestAmerica Knoxville

12102019Page 4 of 21342

Method SummaryJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

Method Method Description LaboratoryProtocol

SW8468321A HFPO-DA TAL DEN

SW8468321A PFOA and PFOS TAL DEN

TAL SOPNone Leaching Procedure TAL DEN

TAL SOPNone Leaching Procedure for Condensate TAL DEN

TAL SOPNone Leaching Procedure for XAD TAL DEN

Protocol References

SW846 = Test Methods For Evaluating Solid Waste PhysicalChemical Methods Third Edition November 1986 And Its Updates

TAL SOP = TestAmerica Laboratories Standard Operating Procedure

Laboratory References

TAL DEN = Eurofins TestAmerica Denver 4955 Yarrow Street Arvada CO 80002 TEL (303)736-0100

Eurofins TestAmerica Knoxville

12102019Page 5 of 21343

Sample SummaryJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

Lab Sample ID Client Sample ID ReceivedCollectedMatrix Asset ID

140-17458-1 G-25772578 DIV VEN STACK R1 M0010 FH Air 112219 0000 112519 0800

140-17458-2 G-257925802582 DIV VEN STACK R1 M0010

BH

Air 112219 0000 112519 0800

140-17458-3 G-2581 DIV VEN STACK R1 M0010 IMPINGERS

12amp3 COND

Air 112219 0000 112519 0800

140-17458-4 G-2583 DIV VEN STACK R1 M0010

BREAKTHROUGH XAD-2 RESIN TUBE

Air 112219 0000 112519 0800

140-17458-5 G-25842585 DIV VEN STACK R2 M0010 FH Air 112219 0000 112519 0800

140-17458-6 G-258625872589 DIV VEN STACK R2 M0010

BH

Air 112219 0000 112519 0800

140-17458-7 G-2588 DIV VEN STACK R2 M0010 IMPINGERS

12amp3 COND

Air 112219 0000 112519 0800

140-17458-8 G-2590 DIV VEN STACK R2 M0010

BREAKTHROUGH XAD-2 RESIN TUBE

Air 112219 0000 112519 0800

Eurofins TestAmerica Knoxville

12102019Page 6 of 21344

Job Narrative140-17458-1

Sample Receipt

The samples were received on November 25 2019 at 800 AM in good condition and properly preserved The temperature of the cooler at receipt was 16ordm C

Quality Control and Data Interpretation

Unless otherwise noted all holding times and QC criteria were met and the test results shown in this report meet all applicable NELAC requirements

Method 0010Method 3542 Sampling Train Preparation

Train fractions were extracted and prepared for analysis in TestAmericarsquos Knoxville laboratory Extracts and condensate samples were forwarded to the Denver laboratory for HFPO-DA analysis All results are reported in ldquoTotal ugrdquo per sample

LCMS

Method 8321A The following samples were inadvertently spiked with a native solution of HFPO-DA rather than the isotope dilution

internal standard prior to extraction in the Knoxville Laboratory

middot DIV VEN Stack R1 FHmiddot DIV VEN Stack R1 BHmiddot DIV VEN R1 Breakthrough middot DIV VEN Stack R2 FHmiddot DIV VEN Stack R2 BHmiddot DIV VEN R2 Breakthrough

As a result these samples received a relatively small fortification of the native HFPO-DA and no labeled IDA as typically applied Upon

discovery of the processing issue the IDAs were post spiked onto the extracted samples which were then re-analyzed to acquire the

Total HFPO-DA content in the samples The spiked amount of native HFPO-DA was subsequently subtracted from the Total HFPO-DA

and the corrected concentration is reported in with the data set below

Please note that under these conditions the affected samples are not corrected for extraction losses through isotope dilution internal

standard data reduction However the HFPO-DA concentrations are accurate and useful for their intended purpose

Method 8321A The laboratory control sample (LCS) and or laboratory control sample duplicate (LCSD) for preparation batch 280-478940 and analytical batch 280-479928 recovered outside control limits for the following analytes HFPO These analytes were biased high in the LCS and were not detected in the associated samples therefore the data have been reported

No additional analytical or quality issues were noted other than those described above or in the DefinitionsGlossary page

Organic Prep

No analytical or quality issues were noted other than those described in the DefinitionsGlossary page

12102019Page 7 of 21345

Chemours VES Carbon Bed Outlet Test Analytical Report TestAmerica Job No 140-17458-1

December 10 2019

OUsers FoldersAdkinsCProject DocumentsSpecial ReportingChemours Corrected ValuesFayettevilleChemours Corrected Results HFPO-DA_DIV VEN Stack_12102019docx Created on 01302018 Last edited on 12102019 302 PM

The following samples were inadvertently spiked with a native solution of HFPO-DA prior to extraction

in the Knoxville laboratory

DIV VEN Stack R1 FH

DIV VEN Stack R1 BH

DIV VEN R1 Breakthrough

DIV VEN Stack R2 FH

DIV VEN Stack R2 BH

DIV VEN R2 Breakthrough

The HFPO-DA results presented below have been corrected to remove the laboratory contribution from the final result

TALS ID Client ID HFPO-DA Result (ugsample)

HFPO-DA Added in the lab

(ugsample)

HFPO-DA Corrected Result

(ugsample)

140-17458-1 DIV VEN Stack R1 FH

986 2 786

140-17458-2 DIV VEN Stack R1 BH

213 7 143

140-17458-4 DIV VEN R1 Breakthrough

230 4 ND

140-17458-5 DIV VEN Stack R2 FH

658 25 408

140-17458-6 DIV VEN Stack R2 BH

363 65 298

140-17458-8 DIV VEN R2 Breakthrough

219 4 ND

12102019Page 8 of 21346

QC Association SummaryJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

LCMS

Analysis Batch 464589

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321ADLCK 280-46458913 Lab Control Sample TotalNA

Prep Batch 478940

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air None140-17458-1 G-25772578 DIV VEN STACK R1 M0010 FH TotalNA

Air None140-17458-5 G-25842585 DIV VEN STACK R2 M0010 FH TotalNA

Air NoneMB 280-47894014-A Method Blank TotalNA

Air NoneMB 280-4789401-A Method Blank TotalNA

Air NoneLCS 280-4789402-A Lab Control Sample TotalNA

Air NoneLCSD 280-4789403-A Lab Control Sample Dup TotalNA

Prep Batch 478993

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air None140-17458-3 G-2581 DIV VEN STACK R1 M0010 IMPINGERS 12amp3 CONDTotalNA

Air None140-17458-7 G-2588 DIV VEN STACK R2 M0010 IMPINGERS 12amp3 CONDTotalNA

Air NoneMB 280-47899314-A Method Blank TotalNA

Air NoneMB 280-4789931-A Method Blank TotalNA

Air NoneLCS 280-4789932-A Lab Control Sample TotalNA

Air NoneLCSD 280-4789933-A Lab Control Sample Dup TotalNA

Prep Batch 479245

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air None140-17458-2 G-257925802582 DIV VEN STACK R1 M0010 BHTotalNA

Air None140-17458-4 G-2583 DIV VEN STACK R1 M0010 BREAKTHROUGH XAD-2 RESIN TUBETotalNA

Air None140-17458-6 G-258625872589 DIV VEN STACK R2 M0010 BHTotalNA

Air None140-17458-8 G-2590 DIV VEN STACK R2 M0010 BREAKTHROUGH XAD-2 RESIN TUBETotalNA

Air NoneMB 280-4792451-A Method Blank TotalNA

Air NoneLCS 280-4792452-A Lab Control Sample TotalNA

Air NoneLCSD 280-4792453-A Lab Control Sample Dup TotalNA

Analysis Batch 479814

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321A 478993140-17458-3 G-2581 DIV VEN STACK R1 M0010 IMPINGERS 12amp3 CONDTotalNA

Air 8321A 478993140-17458-7 G-2588 DIV VEN STACK R2 M0010 IMPINGERS 12amp3 CONDTotalNA

Air 8321A 478993MB 280-47899314-A Method Blank TotalNA

Air 8321A 478993MB 280-4789931-A Method Blank TotalNA

Air 8321A 478993LCS 280-4789932-A Lab Control Sample TotalNA

Air 8321A 478993LCSD 280-4789933-A Lab Control Sample Dup TotalNA

Analysis Batch 479928

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321A 478940140-17458-1 G-25772578 DIV VEN STACK R1 M0010 FH TotalNA

Air 8321A 478940140-17458-5 G-25842585 DIV VEN STACK R2 M0010 FH TotalNA

Air 8321A 478940MB 280-47894014-A Method Blank TotalNA

Air 8321A 478940MB 280-4789401-A Method Blank TotalNA

Air 8321A 478940LCS 280-4789402-A Lab Control Sample TotalNA

Air 8321A 478940LCSD 280-4789403-A Lab Control Sample Dup TotalNA

Analysis Batch 479929

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321A 479245140-17458-2 G-257925802582 DIV VEN STACK R1 M0010 BHTotalNA

Eurofins TestAmerica Knoxville

12102019Page 9 of 21347

QC Association SummaryJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

LCMS (Continued)

Analysis Batch 479929 (Continued)

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321A 479245140-17458-4 G-2583 DIV VEN STACK R1 M0010 BREAKTHROUGH XAD-2 RESIN TUBETotalNA

Air 8321A 479245140-17458-6 G-258625872589 DIV VEN STACK R2 M0010 BHTotalNA

Air 8321A 479245140-17458-8 G-2590 DIV VEN STACK R2 M0010 BREAKTHROUGH XAD-2 RESIN TUBETotalNA

Air 8321A 479245MB 280-4792451-A Method Blank TotalNA

Air 8321A 479245LCS 280-4792452-A Lab Control Sample TotalNA

Air 8321A 479245LCSD 280-4792453-A Lab Control Sample Dup TotalNA

Eurofins TestAmerica Knoxville

12102019Page 10 of 21348

Client Sample ResultsJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

Lab Sample ID 140-17458-1Client Sample ID G-25772578 DIV VEN STACK R1 M0010 FHMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Air Train

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 986 B 0100 00108 ugSample 112719 0804 120819 0915 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 133 50 - 200 112719 0804 120819 0915 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Lab Sample ID 140-17458-2Client Sample ID G-257925802582 DIV VEN STACK R1 M0010 BH

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Air Train

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 213 B 0350 00700 ugSample 120219 1125 120819 0955 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 116 50 - 200 120219 1125 120819 0955 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Lab Sample ID 140-17458-3Client Sample ID G-2581 DIV VEN STACK R1 M0010 IMPINGERS 12amp3 COND

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Air Train

Method 8321A - HFPO-DARL MDL

HFPO-DA 0145 J 0212 00108 ugSample 112719 1236 120619 1241 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 116 50 - 200 112719 1236 120619 1241 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Lab Sample ID 140-17458-4Client Sample ID G-2583 DIV VEN STACK R1 M0010 BREAKTHROUGH XAD-2 RESIN TUBE

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Air Train

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 230 B 0200 00400 ugSample 120219 1125 120819 0958 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 126 50 - 200 120219 1125 120819 0958 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Eurofins TestAmerica Knoxville

12102019Page 11 of 21349

Client Sample ResultsJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

Lab Sample ID 140-17458-5Client Sample ID G-25842585 DIV VEN STACK R2 M0010 FHMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Air Train

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 658 B 0125 00135 ugSample 112719 0804 120819 0919 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 136 50 - 200 112719 0804 120819 0919 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Lab Sample ID 140-17458-6Client Sample ID G-258625872589 DIV VEN STACK R2 M0010 BH

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Air Train

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 363 B 0325 00650 ugSample 120219 1125 120819 1001 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 100 50 - 200 120219 1125 120819 1001 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Lab Sample ID 140-17458-7Client Sample ID G-2588 DIV VEN STACK R2 M0010 IMPINGERS 12amp3 COND

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Air Train

Method 8321A - HFPO-DARL MDL

HFPO-DA ND 0196 000999 ugSample 112719 1236 120619 1244 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 121 50 - 200 112719 1236 120619 1244 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Lab Sample ID 140-17458-8Client Sample ID G-2590 DIV VEN STACK R2 M0010 BREAKTHROUGH XAD-2 RESIN TUBE

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Air Train

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 219 B 0200 00400 ugSample 120219 1125 120819 1004 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 109 50 - 200 120219 1125 120819 1004 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Eurofins TestAmerica Knoxville

12102019Page 12 of 21350

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17458-1ProjectSite VEN Stack - M0010

Method 8321A - HFPO-DAPrep None

000250HFPO-DA ugSample

Analyte UnitsMDLRL

000128

Method 8321A - PFOA and PFOSPrep None

00250HFPO-DA ugSample

Analyte UnitsMDLRL

000270

0100HFPO-DA ugSample00200

Eurofins TestAmerica Knoxville

12102019Page 13 of 21351

ANALYTICAL REPORTJob Number 140-17461-1

Job Description VEN Stack - MM-18

Contract Number LBIO-67048

ForChemours Company FC LLC The

co AECOMSabre Building Suite 300

4051 Ogletown RoadNewark DE 19713

Attention Michael Aucoin

_____________________________________________

Approved for releaseCourtney M AdkinsProject Manager II12232019 300 PM

Courtney M Adkins Project Manager II5815 Middlebrook Pike Knoxville TN 37921

(865)291-3000 courtneyadkinstestamericainccom

12232019

This report may not be reproduced except in full and with written approval from the laboratory For questions please contact the Project Manager atthe e-mail address or telephone number listed on this page

The test results in this report relate only to the samples as received by the laboratory and will meet all requirements of the methodology with anyexceptions noted This report shall not be reproduced except in full without the express written approval of the laboratory All questions should bedirected to the Eurofins TestAmerica Project Manager

This report has been electronically signed and authorized by the signatory Electronic signature is intended to be the legally binding equivalent of atraditionally handwritten signature

Eurofins TestAmerica Knoxville

5815 Middlebrook Pike Knoxville TN 37921

Tel (865) 291-3000 Fax (865) 584-4315 wwwtestamericainccom

12232019Page 1 of 89452

Table of ContentsCover Title Page 1

Data Summaries 5

Definitions 5

Method Summary 6

Sample Summary 7

Case Narrative 8

QC Association 10

Client Sample Results 14

Default Detection Limits 43

Surrogate Summary 45

QC Sample Results 46

Chronicle 54

Certification Summary 63

Manual Integration Summary 64

Organic Sample Data 77

GCMS VOA 77

Method 8260B 77Method 8260B QC Summary 78Method 8260B Sample Data 93Standards Data 287

Method 8260B ICAL Data 287Method 8260B CCAL Data 389

Raw QC Data 437Method 8260B Tune Data 437Method 8260B Blank Data 453Method 8260B LCSLCSD Data 461

12232019Page 2 of 89453

Table of ContentsMethod 8260B MSMSD Data 474

Method 8260B Run Logs 482Method 8260B Prep Data 495

HPLCIC 498

Method 9056 498Method 9056 QC Summary 499Method 9056 Sample Data 502Standards Data 538

Method 9056 ICAL Data 538Method 9056 CCAL Data 565

Raw QC Data 612Method 9056 Blank Data 612Method 9056 LCSLCSD Data 638Method 9056 MSMSD Data 644

Method 9056 Run Logs 650Method 9056 Prep Data 664

Method 9056A Total Halogens 667Method 9056A Total Halogens QC Summary 668Method 9056A Total Halogens Sample Data 676Standards Data 715

Method 9056A Total Halogens ICAL Data 715Method 9056A Total Halogens CCAL Data 740

Raw QC Data 781Method 9056A Total Halogens Blank Data 781Method 9056A Total Halogens LCSLCSD Data 817Method 9056A Total Halogens MSMSD Data 831

12232019Page 3 of 89454

Table of ContentsMethod 9056A Total Halogens Run Logs 839Method 9056A Total Halogens Prep Data 855

Inorganic Sample Data 864

General Chemistry Data 864

Gen Chem Cover Page 865

Gen Chem Sample Data 866

Gen Chem QC Data 878Gen Chem ICVCCV 878Gen Chem Duplicates 879

Gen Chem MDL 880

Gen Chem Analysis Run Log 881

Gen Chem Prep Data 882

Gen Chem Raw Data 884

Shipping and Receiving Documents 886

Client Chain of Custody 887

12232019Page 4 of 89455

DefinitionsGlossaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Qualifiers

GCMS VOAQualifier Description

LCS or LCSD is outside acceptance limits

Qualifier

H Sample was prepped or analyzed beyond the specified holding time

GCMS VOA TICsQualifier Description

H Sample was prepped or analyzed beyond the specified holding time

Qualifier

J Indicates an Estimated Value for TICs

N Presumptive evidence of material

T Result is a tentatively identified compound (TIC) and an estimated value

HPLCICQualifier Description

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

Qualifier

General ChemistryQualifier Description

HF Field parameter with a holding time of 15 minutes Test performed by laboratory at clients request

Qualifier

GlossaryThese commonly used abbreviations may or may not be present in this report

curren Listed under the D column to designate that the result is reported on a dry weight basis

Abbreviation

R Percent Recovery

CFL Contains Free Liquid

CNF Contains No Free Liquid

DER Duplicate Error Ratio (normalized absolute difference)

Dil Fac Dilution Factor

DL Detection Limit (DoDDOE)

DL RA RE IN Indicates a Dilution Re-analysis Re-extraction or additional Initial metalsanion analysis of the sample

DLC Decision Level Concentration (Radiochemistry)

EDL Estimated Detection Limit (Dioxin)

LOD Limit of Detection (DoDDOE)

LOQ Limit of Quantitation (DoDDOE)

MDA Minimum Detectable Activity (Radiochemistry)

MDC Minimum Detectable Concentration (Radiochemistry)

MDL Method Detection Limit

ML Minimum Level (Dioxin)

NC Not Calculated

ND Not Detected at the reporting limit (or MDL or EDL if shown)

PQL Practical Quantitation Limit

QC Quality Control

RER Relative Error Ratio (Radiochemistry)

RL Reporting Limit or Requested Limit (Radiochemistry)

RPD Relative Percent Difference a measure of the relative difference between two points

TEF Toxicity Equivalent Factor (Dioxin)

TEQ Toxicity Equivalent Quotient (Dioxin)

Eurofins TestAmerica Knoxville

12232019Page 5 of 89456

Method SummaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Method Method Description LaboratoryProtocol

SW8468260B Volatile Organic Compounds (GCMS) TAL KNX

SW8469056 Anions Ion Chromatography TAL KNX

SW8469041A pH TAL KNX

SW8465050 Bomb Preparation Method for Solid Waste TAL KNX

NoneMeOH Prep Methanol Impinger Preparation TAL KNX

Protocol References

None = None

SW846 = Test Methods For Evaluating Solid Waste PhysicalChemical Methods Third Edition November 1986 And Its Updates

Laboratory References

TAL KNX = Eurofins TestAmerica Knoxville 5815 Middlebrook Pike Knoxville TN 37921 TEL (865)291-3000

Eurofins TestAmerica Knoxville

12232019Page 6 of 89457

Sample SummaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID Client Sample ID ReceivedCollectedMatrix Asset ID

140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 Air 112219 0000 112519 0800

140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 Air 112219 0000 112519 0800

140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 Air 112219 0000 112519 0800

140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 Air 112219 0000 112519 0800

140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 Air 112219 0000 112519 0800

140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 Air 112219 0000 112519 0800

140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 Air 112219 0000 112519 0800

140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 Air 112219 0000 112519 0800

140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 Air 112219 0000 112519 0800

140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 Air 112219 0000 112519 0800

140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 Air 112219 0000 112519 0800

140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 Air 112219 0000 112519 0800

Eurofins TestAmerica Knoxville

12232019Page 7 of 89458

Job Narrative140-17461-1

Sample Receipt

The samples were received on November 25 2019 at 800 AM in good condition and properly preserved The temperature of the cooler at receipt was 16ordm C

GCMS VOA

Impinger Sample Preparation and Analysis Impinger samples were analyzed for the volatile organic target analytes by purge and trap GCMS using Eurofins TestAmerica Knoxville standard operating procedure KNOX-MS-0015 based on the following method

middot SW-846 8260B ldquoVolatile Organic Compounds by Gas Chromatography Mass Spectrometry (GCMS)rdquo

Each sample is prepared by adding a known amount of sample to the purge water in a purge and trap vessel and spiking with internal standards surrogates and matrix spike analytes (as needed) Volatile compounds are introduced into the gas chromatograph by the purge and trap method The components are separated using the chromatograph and detected using a mass spectrometer which provides both qualitative and quantitative information

Impinger sample results were calculated using the following equation

Concentration μgsample = (C times DF times W times Vt) (Va)WhereC = On-column concentration μgLDF = Dilution factorW = Volume of water purged LVt = Methanol extract final volume μL Va = Volume of extract analyzed microL

Method 8260B The LCS (LCS 140-357061-A) for analytical batch 140-35903 recovered below marginal exceedance limits for Trichlorofluoromethane This is an ongoing instrument issue with LCS recoveries for this analyte The project manager approved moving forward with analysis for the current job

Method 8260B The following samples were analyzed outside of analytical holding time due to ongoing instrumentation problems Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 (140-17461-9) Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 (140-17461-10) Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 (140-17461-11) and Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 (140-17461-12)

No additional analytical or quality issues were noted other than those described above or in the DefinitionsGlossary page

Total Halogens The samples were prepared for total fluorine chlorine bromine andor iodine using SOP number KNOX-WC-0016 (based on ASTM Method E442 and SW-846 Method 5050) The sample is oxidized by combustion in an oxygen flask at atmospheric pressure or a bomb containing oxygen under pressure The liberated halogen compounds are absorbed primarily as halides in a sodium carbonatesodium bicarbonate buffer solution The combustion products are collected by repeated rinsing of the combustion apparatus and analyzed by ion chromatography in accordance with SOP KNOX-WC-0005 (based on SW-846 Method 9056) The results are calculated using the following equation

C = [(Ccom times Vcom) W] times 1000 gKg

WhereC = Concentration of analyte in the sample mgKgCcom = Concentration of analyte in the combustate mgLVcom = Total volume of combustate LW = Weight of sample combusted g

Anions in Impinger Solutions Anions are is determined in accordance to SOP KNOX-WC-0005 (based on methods 3000A and 9056) The samples were diluted a minimum of 120 in ion chromatography solvent buffer solution to reduce the methanol concentration before injection Buffer concentrate was added until the pH was 10 Samples are diluted with ion chromatography eluate solution to bring the concentrations within the calibration range when necessary Higher dilutions are applied as necessary

An aliquot of prepared sample is introduced into the ion chromatograph Anions are identified based on their retention times as compared to those of known standards Quantification is accomplished by measuring the peak response and comparing it to a calibration curve generated from known standards

12232019Page 8 of 89459

The pH of all samples were tested with pH paper QC consisted of initial CCV and LCS which also serve as initial calibration duplicate analysis for every 10 samples and closing CCV A certified thermometer was used to check the ambient temperature

12232019Page 9 of 89460

QC Association SummaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

GCMS VOA

Prep Batch 35706

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air MeOH Prep140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air MeOH Prep140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air MeOH Prep140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH Prep140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air MeOH Prep140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air MeOH Prep140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air MeOH Prep140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH PrepMB 140-357062-A Method Blank TotalNA

Air MeOH PrepLCS 140-357061-A Lab Control Sample TotalNA

Air MeOH Prep140-17461-8 MS Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17461-8 MSD Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Analysis Batch 35903

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8260B 35706140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 8260B 35706140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 8260B 35706140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 8260B 35706140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 8260B 35706140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 8260B 35706140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 8260B 35706140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 8260B 35706140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 8260B 35706140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 8260B 35706140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 8260B 35706140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 8260B 35706140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 8260B 35706MB 140-357062-A Method Blank TotalNA

Air 8260B 35706LCS 140-357061-A Lab Control Sample TotalNA

Air 8260B 35706LCS 140-357061-A Lab Control Sample TotalNA

Air 8260B 35706140-17461-8 MS Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 8260B 35706140-17461-8 MSD Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

HPLCIC

Prep Batch 35705

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH PrepMB 140-3570514-B Method Blank TotalNA

Air MeOH PrepLCS 140-3570515-B Lab Control Sample TotalNA

Air MeOH PrepLCSD 140-3570516-B Lab Control Sample Dup TotalNA

Prep Batch 35706

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air MeOH Prep140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

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QC Association SummaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

HPLCIC (Continued)

Prep Batch 35706 (Continued)

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air MeOH Prep140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH Prep140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air MeOH Prep140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air MeOH Prep140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air MeOH Prep140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH PrepMB 140-3570617-A Method Blank TotalNA

Air MeOH PrepLCS 140-3570618-A Lab Control Sample TotalNA

Air MeOH PrepLCSD 140-3570619-A Lab Control Sample Dup TotalNA

Air MeOH Prep140-17461-8 MS Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17461-8 MSD Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Prep Batch 35707

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH PrepMB 140-3570717-B Method Blank TotalNA

Air MeOH PrepLCS 140-3570718-B Lab Control Sample TotalNA

Air MeOH PrepLCSD 140-3570719-B Lab Control Sample Dup TotalNA

Prep Batch 35761

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 5050 35706140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 5050 35706140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 5050 35706140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 5050 35706140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 5050 35706140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 5050 35706140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 5050 35706140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 5050 35707MB 140-3570717-B Method Blank TotalNA

Air 5050 35707LCS 140-3570718-B Lab Control Sample TotalNA

Air 5050 35707LCSD 140-3570719-B Lab Control Sample Dup TotalNA

Prep Batch 35762

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 5050 35706140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 5050 35706140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 5050 35706140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 5050 35706140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 5050 35706140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 5050 35705MB 140-3570514-B Method Blank TotalNA

Air 5050 35705LCS 140-3570515-B Lab Control Sample TotalNA

Air 5050 35705LCSD 140-3570516-B Lab Control Sample Dup TotalNA

Air 5050 35706140-17461-8 MS Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 5050 35706140-17461-8 MSD Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Analysis Batch 36005

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35761140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9056 35761140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35761140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

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QC Association SummaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

HPLCIC (Continued)

Analysis Batch 36005 (Continued)

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35761140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9056 35761140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9056 35761140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9056 35761140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9056 35761MB 140-3570717-B Method Blank TotalNA

Air 9056 35761LCS 140-3570718-B Lab Control Sample TotalNA

Air 9056 35761LCSD 140-3570719-B Lab Control Sample Dup TotalNA

Analysis Batch 36121

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35762140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35762140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9056 35762140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9056 35762140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9056 35762140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9056 35762MB 140-3570514-B Method Blank TotalNA

Air 9056 35762LCS 140-3570515-B Lab Control Sample TotalNA

Air 9056 35762LCSD 140-3570516-B Lab Control Sample Dup TotalNA

Air 9056 35762140-17461-8 MS Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35762140-17461-8 MSD Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Analysis Batch 36210

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35706140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9056 35706140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35706140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9056 35706140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9056 35706140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9056 35706140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9056 35706140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9056 35706140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35706140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9056 35706140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9056 35706140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9056 35706140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9056 35706MB 140-3570617-A Method Blank TotalNA

Air 9056 35706LCS 140-3570618-A Lab Control Sample TotalNA

Air 9056 35706LCSD 140-3570619-A Lab Control Sample Dup TotalNA

Air 9056 35706140-17461-8 MS Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35706140-17461-8 MSD Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

General Chemistry

Analysis Batch 36086

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9041A140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9041A140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9041A140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9041A140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9041A140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9041A140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

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QC Association SummaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

General Chemistry (Continued)

Analysis Batch 36086 (Continued)

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9041A140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9041A140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9041A140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9041A140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9041A140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9041A140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9041ALCS 140-360862 Lab Control Sample TotalNA

Air 9041A140-17461-1 DU Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9041A140-17461-2 DU Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9041A140-17461-3 DU Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-1Client Sample ID Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 426 562 ugSample 112919 1048 120619 2054 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

852 852 ugSample 112919 1048 120619 2054 111133-Pentafluorobutane ND

426 613 ugSample 112919 1048 120619 2054 1111-Trichloroethane ND

852 169 ugSample 112919 1048 120619 2054 1111-Trifluoro-22-dichloroethane ND

852 852 ugSample 112919 1048 120619 2054 1111-Trifluoroethane ND

426 818 ugSample 112919 1048 120619 2054 11122-Tetrachloroethane ND

852 477 ugSample 112919 1048 120619 2054 1112-Trichloro-122-trifluoroethane ND

852 852 ugSample 112919 1048 120619 2054 1112-trichloro-1-fluoroethane ND

426 443 ugSample 112919 1048 120619 2054 1112-Trichloroethane ND

852 426 ugSample 112919 1048 120619 2054 111-Dichloro-1-fluoroethane ND

852 852 ugSample 112919 1048 120619 2054 111-dichloro-22-difluoroethane ND

852 852 ugSample 112919 1048 120619 2054 111-dichloro-22-difluoroethene ND

426 511 ugSample 112919 1048 120619 2054 111-Dichloroethane ND

426 630 ugSample 112919 1048 120619 2054 111-Dichloroethene ND

426 460 ugSample 112919 1048 120619 2054 111-Dichloropropene ND

852 852 ugSample 112919 1048 120619 2054 111-Difluoroethene ND

852 852 ugSample 112919 1048 120619 2054 1122-trichloro-11-difluoroethane ND

426 136 ugSample 112919 1048 120619 2054 1123-Trichlorobenzene ND

426 106 ugSample 112919 1048 120619 2054 1123-Trichloropropane ND

426 143 ugSample 112919 1048 120619 2054 1124-Trichlorobenzene ND

426 886 ugSample 112919 1048 120619 2054 1124-Trimethylbenzene ND

852 150 ugSample 112919 1048 120619 2054 112-Dibromo-3-Chloropropane ND

426 562 ugSample 112919 1048 120619 2054 112-Dibromoethane (EDB) ND

852 852 ugSample 112919 1048 120619 2054 112-dichloro-11-difluoroethane ND

426 749 ugSample 112919 1048 120619 2054 112-Dichlorobenzene ND

426 715 ugSample 112919 1048 120619 2054 112-Dichloroethane ND

426 426 ugSample 112919 1048 120619 2054 112-Dichloropropane ND

426 886 ugSample 112919 1048 120619 2054 1135-Trimethylbenzene ND

426 732 ugSample 112919 1048 120619 2054 113-Dichlorobenzene ND

426 477 ugSample 112919 1048 120619 2054 113-Dichloropropane ND

426 852 ugSample 112919 1048 120619 2054 114-Dichlorobenzene ND

852 869 ugSample 112919 1048 120619 2054 11-Chloro-11-difluoroethane ND

852 852 ugSample 112919 1048 120619 2054 122-dichloro-11-difluoroethylmethyl

ether

ND

426 124 ugSample 112919 1048 120619 2054 122-Dichloropropane ND

170 273 ugSample 112919 1048 120619 2054 12-Butanone (MEK) ND

852 126 ugSample 112919 1048 120619 2054 12-chloro-111444-hexafluoro-2-but

ene

ND

852 852 ugSample 112919 1048 120619 2054 12-Chloro-111-Trifluoroethane ND

426 801 ugSample 112919 1048 120619 2054 12-Chlorotoluene ND

170 392 ugSample 112919 1048 120619 2054 12-Hexanone ND

372 372 ugSample 112919 1048 120619 2054 12-MTP as HFPO 820

426 886 ugSample 112919 1048 120619 2054 14-Chlorotoluene ND

426 114 ugSample 112919 1048 120619 2054 14-Isopropyltoluene ND

170 273 ugSample 112919 1048 120619 2054 14-Methyl-2-pentanone (MIBK) ND

170 101 ugSample 112919 1048 120619 2054 1Acetone ND

426 818 ugSample 112919 1048 120619 2054 1Benzene ND

426 596 ugSample 112919 1048 120619 2054 1Bromobenzene ND

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-1Client Sample ID Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromochloromethane ND 426 954 ugSample 112919 1048 120619 2054 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

426 732 ugSample 112919 1048 120619 2054 1Bromodichloromethane ND

426 129 ugSample 112919 1048 120619 2054 1Bromoform ND

852 494 ugSample 112919 1048 120619 2054 1Bromomethane ND

426 106 ugSample 112919 1048 120619 2054 1Carbon disulfide ND

426 562 ugSample 112919 1048 120619 2054 1Carbon tetrachloride ND

125 125 ugSample 112919 1048 120619 2054 1Carbonyl Difluoride ND

426 613 ugSample 112919 1048 120619 2054 1Chlorobenzene ND

426 920 ugSample 112919 1048 120619 2054 1Chlorodibromomethane ND

852 187 ugSample 112919 1048 120619 2054 1Chloroethane ND

426 494 ugSample 112919 1048 120619 2054 1Chloroform ND

852 354 ugSample 112919 1048 120619 2054 1Chloromethane ND

426 341 ugSample 112919 1048 120619 2054 1cis-12-Dichloroethene ND

426 732 ugSample 112919 1048 120619 2054 1cis-13-Dichloropropene ND

426 409 ugSample 112919 1048 120619 2054 1Dibromomethane ND

852 150 ugSample 112919 1048 120619 2054 1Dichlorodifluoromethane ND

426 698 ugSample 112919 1048 120619 2054 1Ethylbenzene ND

426 426 ugSample 112919 1048 120619 2054 1Heptafluoropropyl 1222-tetrafluoroethyl ether

111

426 112 ugSample 112919 1048 120619 2054 1Hexachlorobutadiene ND

409 409 ugSample 112919 1048 120619 2054 1HFPO dimer methyl ester as

HFPO-DA

ND

426 596 ugSample 112919 1048 120619 2054 1Isopropylbenzene ND

852 698 ugSample 112919 1048 120619 2054 1mp-Xylene ND

426 273 ugSample 112919 1048 120619 2054 1Methylene Chloride 687

426 204 ugSample 112919 1048 120619 2054 1Naphthalene ND

426 109 ugSample 112919 1048 120619 2054 1n-Butylbenzene ND

426 920 ugSample 112919 1048 120619 2054 1n-Propylbenzene ND

426 443 ugSample 112919 1048 120619 2054 1o-Xylene ND

426 835 ugSample 112919 1048 120619 2054 1sec-Butylbenzene ND

426 920 ugSample 112919 1048 120619 2054 1Styrene ND

426 749 ugSample 112919 1048 120619 2054 1tert-Butylbenzene ND

426 562 ugSample 112919 1048 120619 2054 1Tetrachloroethene ND

426 784 ugSample 112919 1048 120619 2054 1Toluene ND

426 443 ugSample 112919 1048 120619 2054 1trans-12-Dichloroethene ND

426 150 ugSample 112919 1048 120619 2054 1trans-13-Dichloropropene ND

426 307 ugSample 112919 1048 120619 2054 1Trichloroethene ND

852 818 ugSample 112919 1048 120619 2054 1Trichlorofluoromethane ND

852 204 ugSample 112919 1048 120619 2054 1Vinyl chloride ND

Butanoic acid heptafluoro- sodium

salt

437 T J N ugSample 113 2218-54-4 112919 1048 120619 2054 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2054112919 1048T JUnknown 489 ugSample 118

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1048 120619 2054 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 110 112919 1048 120619 2054 157 - 152

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-1Client Sample ID Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)

Dibromofluoromethane (Surr) 104 62 - 134 112919 1048 120619 2054 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Toluene-d8 (Surr) 97 112919 1048 120619 2054 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine ND 9080 4540 ugSample 112919 1048 121119 2121 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

3750 1700 ugSample 112919 1048 121719 1902 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-2Client Sample ID Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 461 608 ugSample 112919 1048 120619 2119 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

922 922 ugSample 112919 1048 120619 2119 111133-Pentafluorobutane ND

461 664 ugSample 112919 1048 120619 2119 1111-Trichloroethane ND

922 182 ugSample 112919 1048 120619 2119 1111-Trifluoro-22-dichloroethane ND

922 922 ugSample 112919 1048 120619 2119 1111-Trifluoroethane ND

461 885 ugSample 112919 1048 120619 2119 11122-Tetrachloroethane ND

922 516 ugSample 112919 1048 120619 2119 1112-Trichloro-122-trifluoroethane ND

922 922 ugSample 112919 1048 120619 2119 1112-trichloro-1-fluoroethane ND

461 479 ugSample 112919 1048 120619 2119 1112-Trichloroethane ND

922 461 ugSample 112919 1048 120619 2119 111-Dichloro-1-fluoroethane ND

922 922 ugSample 112919 1048 120619 2119 111-dichloro-22-difluoroethane ND

922 922 ugSample 112919 1048 120619 2119 111-dichloro-22-difluoroethene ND

461 553 ugSample 112919 1048 120619 2119 111-Dichloroethane ND

461 682 ugSample 112919 1048 120619 2119 111-Dichloroethene ND

461 498 ugSample 112919 1048 120619 2119 111-Dichloropropene ND

922 922 ugSample 112919 1048 120619 2119 111-Difluoroethene ND

922 922 ugSample 112919 1048 120619 2119 1122-trichloro-11-difluoroethane ND

461 147 ugSample 112919 1048 120619 2119 1123-Trichlorobenzene ND

461 114 ugSample 112919 1048 120619 2119 1123-Trichloropropane ND

461 155 ugSample 112919 1048 120619 2119 1124-Trichlorobenzene ND

461 959 ugSample 112919 1048 120619 2119 1124-Trimethylbenzene ND

922 162 ugSample 112919 1048 120619 2119 112-Dibromo-3-Chloropropane ND

461 608 ugSample 112919 1048 120619 2119 112-Dibromoethane (EDB) ND

922 922 ugSample 112919 1048 120619 2119 112-dichloro-11-difluoroethane ND

461 811 ugSample 112919 1048 120619 2119 112-Dichlorobenzene ND

461 774 ugSample 112919 1048 120619 2119 112-Dichloroethane ND

461 461 ugSample 112919 1048 120619 2119 112-Dichloropropane ND

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-2Client Sample ID Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

135-Trimethylbenzene ND 461 959 ugSample 112919 1048 120619 2119 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

461 793 ugSample 112919 1048 120619 2119 113-Dichlorobenzene ND

461 516 ugSample 112919 1048 120619 2119 113-Dichloropropane ND

461 922 ugSample 112919 1048 120619 2119 114-Dichlorobenzene ND

922 940 ugSample 112919 1048 120619 2119 11-Chloro-11-difluoroethane ND

922 922 ugSample 112919 1048 120619 2119 122-dichloro-11-difluoroethylmethyl

ether

ND

461 135 ugSample 112919 1048 120619 2119 122-Dichloropropane ND

184 295 ugSample 112919 1048 120619 2119 12-Butanone (MEK) ND

922 136 ugSample 112919 1048 120619 2119 12-chloro-111444-hexafluoro-2-but

ene

ND

922 922 ugSample 112919 1048 120619 2119 12-Chloro-111-Trifluoroethane ND

461 866 ugSample 112919 1048 120619 2119 12-Chlorotoluene ND

184 424 ugSample 112919 1048 120619 2119 12-Hexanone ND

403 403 ugSample 112919 1048 120619 2119 12-MTP as HFPO 819

461 959 ugSample 112919 1048 120619 2119 14-Chlorotoluene ND

461 124 ugSample 112919 1048 120619 2119 14-Isopropyltoluene ND

184 295 ugSample 112919 1048 120619 2119 14-Methyl-2-pentanone (MIBK) ND

184 109 ugSample 112919 1048 120619 2119 1Acetone ND

461 885 ugSample 112919 1048 120619 2119 1Benzene ND

461 645 ugSample 112919 1048 120619 2119 1Bromobenzene ND

461 103 ugSample 112919 1048 120619 2119 1Bromochloromethane ND

461 793 ugSample 112919 1048 120619 2119 1Bromodichloromethane ND

461 140 ugSample 112919 1048 120619 2119 1Bromoform ND

922 535 ugSample 112919 1048 120619 2119 1Bromomethane ND

461 114 ugSample 112919 1048 120619 2119 1Carbon disulfide ND

461 608 ugSample 112919 1048 120619 2119 1Carbon tetrachloride ND

135 135 ugSample 112919 1048 120619 2119 1Carbonyl Difluoride ND

461 664 ugSample 112919 1048 120619 2119 1Chlorobenzene ND

461 995 ugSample 112919 1048 120619 2119 1Chlorodibromomethane ND

922 203 ugSample 112919 1048 120619 2119 1Chloroethane ND

461 535 ugSample 112919 1048 120619 2119 1Chloroform ND

922 383 ugSample 112919 1048 120619 2119 1Chloromethane ND

461 369 ugSample 112919 1048 120619 2119 1cis-12-Dichloroethene ND

461 793 ugSample 112919 1048 120619 2119 1cis-13-Dichloropropene ND

461 442 ugSample 112919 1048 120619 2119 1Dibromomethane ND

922 162 ugSample 112919 1048 120619 2119 1Dichlorodifluoromethane ND

461 756 ugSample 112919 1048 120619 2119 1Ethylbenzene ND

461 461 ugSample 112919 1048 120619 2119 1Heptafluoropropyl 1222-tetrafluoroethyl ether

161

461 122 ugSample 112919 1048 120619 2119 1Hexachlorobutadiene ND

442 442 ugSample 112919 1048 120619 2119 1HFPO dimer methyl ester as

HFPO-DA

ND

461 645 ugSample 112919 1048 120619 2119 1Isopropylbenzene ND

922 756 ugSample 112919 1048 120619 2119 1mp-Xylene ND

461 295 ugSample 112919 1048 120619 2119 1Methylene Chloride 568

461 221 ugSample 112919 1048 120619 2119 1Naphthalene ND

461 118 ugSample 112919 1048 120619 2119 1n-Butylbenzene ND

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12232019Page 17 of 89468

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-2Client Sample ID Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

n-Propylbenzene ND 461 995 ugSample 112919 1048 120619 2119 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

461 479 ugSample 112919 1048 120619 2119 1o-Xylene ND

461 903 ugSample 112919 1048 120619 2119 1sec-Butylbenzene ND

461 995 ugSample 112919 1048 120619 2119 1Styrene ND

461 811 ugSample 112919 1048 120619 2119 1tert-Butylbenzene ND

461 608 ugSample 112919 1048 120619 2119 1Tetrachloroethene ND

461 848 ugSample 112919 1048 120619 2119 1Toluene ND

461 479 ugSample 112919 1048 120619 2119 1trans-12-Dichloroethene ND

461 162 ugSample 112919 1048 120619 2119 1trans-13-Dichloropropene ND

461 332 ugSample 112919 1048 120619 2119 1Trichloroethene ND

922 885 ugSample 112919 1048 120619 2119 1Trichlorofluoromethane ND

922 221 ugSample 112919 1048 120619 2119 1Vinyl chloride ND

Unknown 561 T J ugSample 113 112919 1048 120619 2119 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2119112919 1048T JUnknown 1150 ugSample 118

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1048 120619 2119 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 112919 1048 120619 2119 157 - 152

Dibromofluoromethane (Surr) 104 112919 1048 120619 2119 162 - 134

Toluene-d8 (Surr) 96 112919 1048 120619 2119 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 27900 9830 4920 ugSample 112919 1048 121119 2142 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

4060 1840 ugSample 112919 1048 121719 2006 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-3Client Sample ID Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 858 113 ugSample 112919 1048 120619 2143 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

172 172 ugSample 112919 1048 120619 2143 111133-Pentafluorobutane ND

858 124 ugSample 112919 1048 120619 2143 1111-Trichloroethane ND

172 340 ugSample 112919 1048 120619 2143 1111-Trifluoro-22-dichloroethane ND

172 172 ugSample 112919 1048 120619 2143 1111-Trifluoroethane ND

858 165 ugSample 112919 1048 120619 2143 11122-Tetrachloroethane ND

172 0961 ugSample 112919 1048 120619 2143 1112-Trichloro-122-trifluoroethane ND

172 172 ugSample 112919 1048 120619 2143 1112-trichloro-1-fluoroethane ND

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-3Client Sample ID Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

112-Trichloroethane ND 858 0892 ugSample 112919 1048 120619 2143 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

172 858 ugSample 112919 1048 120619 2143 111-Dichloro-1-fluoroethane ND

172 172 ugSample 112919 1048 120619 2143 111-dichloro-22-difluoroethane ND

172 172 ugSample 112919 1048 120619 2143 111-dichloro-22-difluoroethene ND

858 103 ugSample 112919 1048 120619 2143 111-Dichloroethane ND

858 127 ugSample 112919 1048 120619 2143 111-Dichloroethene ND

858 0926 ugSample 112919 1048 120619 2143 111-Dichloropropene ND

172 172 ugSample 112919 1048 120619 2143 111-Difluoroethene ND

172 172 ugSample 112919 1048 120619 2143 1122-trichloro-11-difluoroethane ND

858 274 ugSample 112919 1048 120619 2143 1123-Trichlorobenzene ND

858 213 ugSample 112919 1048 120619 2143 1123-Trichloropropane ND

858 288 ugSample 112919 1048 120619 2143 1124-Trichlorobenzene ND

858 178 ugSample 112919 1048 120619 2143 1124-Trimethylbenzene ND

172 302 ugSample 112919 1048 120619 2143 112-Dibromo-3-Chloropropane ND

858 113 ugSample 112919 1048 120619 2143 112-Dibromoethane (EDB) ND

172 172 ugSample 112919 1048 120619 2143 112-dichloro-11-difluoroethane ND

858 151 ugSample 112919 1048 120619 2143 112-Dichlorobenzene ND

858 144 ugSample 112919 1048 120619 2143 112-Dichloroethane ND

858 0858 ugSample 112919 1048 120619 2143 112-Dichloropropane ND

858 178 ugSample 112919 1048 120619 2143 1135-Trimethylbenzene ND

858 148 ugSample 112919 1048 120619 2143 113-Dichlorobenzene ND

858 0961 ugSample 112919 1048 120619 2143 113-Dichloropropane ND

858 172 ugSample 112919 1048 120619 2143 114-Dichlorobenzene ND

172 175 ugSample 112919 1048 120619 2143 11-Chloro-11-difluoroethane ND

172 172 ugSample 112919 1048 120619 2143 122-dichloro-11-difluoroethylmethyl

ether

ND

858 250 ugSample 112919 1048 120619 2143 122-Dichloropropane ND

343 549 ugSample 112919 1048 120619 2143 12-Butanone (MEK) ND

172 254 ugSample 112919 1048 120619 2143 12-chloro-111444-hexafluoro-2-but

ene

ND

172 172 ugSample 112919 1048 120619 2143 12-Chloro-111-Trifluoroethane ND

858 161 ugSample 112919 1048 120619 2143 12-Chlorotoluene ND

343 789 ugSample 112919 1048 120619 2143 12-Hexanone ND

749 749 ugSample 112919 1048 120619 2143 12-MTP as HFPO 604

858 178 ugSample 112919 1048 120619 2143 14-Chlorotoluene ND

858 230 ugSample 112919 1048 120619 2143 14-Isopropyltoluene ND

343 549 ugSample 112919 1048 120619 2143 14-Methyl-2-pentanone (MIBK) ND

343 202 ugSample 112919 1048 120619 2143 1Acetone ND

858 165 ugSample 112919 1048 120619 2143 1Benzene ND

858 120 ugSample 112919 1048 120619 2143 1Bromobenzene ND

858 192 ugSample 112919 1048 120619 2143 1Bromochloromethane ND

858 148 ugSample 112919 1048 120619 2143 1Bromodichloromethane ND

858 261 ugSample 112919 1048 120619 2143 1Bromoform ND

172 995 ugSample 112919 1048 120619 2143 1Bromomethane ND

858 213 ugSample 112919 1048 120619 2143 1Carbon disulfide ND

858 113 ugSample 112919 1048 120619 2143 1Carbon tetrachloride ND

251 251 ugSample 112919 1048 120619 2143 1Carbonyl Difluoride ND

858 124 ugSample 112919 1048 120619 2143 1Chlorobenzene ND

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-3Client Sample ID Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Chlorodibromomethane ND 858 185 ugSample 112919 1048 120619 2143 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

172 377 ugSample 112919 1048 120619 2143 1Chloroethane ND

858 0995 ugSample 112919 1048 120619 2143 1Chloroform ND

172 714 ugSample 112919 1048 120619 2143 1Chloromethane ND

858 0686 ugSample 112919 1048 120619 2143 1cis-12-Dichloroethene ND

858 148 ugSample 112919 1048 120619 2143 1cis-13-Dichloropropene ND

858 0823 ugSample 112919 1048 120619 2143 1Dibromomethane ND

172 302 ugSample 112919 1048 120619 2143 1Dichlorodifluoromethane ND

858 141 ugSample 112919 1048 120619 2143 1Ethylbenzene ND

858 858 ugSample 112919 1048 120619 2143 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

858 226 ugSample 112919 1048 120619 2143 1Hexachlorobutadiene ND

823 823 ugSample 112919 1048 120619 2143 1HFPO dimer methyl ester as

HFPO-DA

ND

858 120 ugSample 112919 1048 120619 2143 1Isopropylbenzene ND

172 141 ugSample 112919 1048 120619 2143 1mp-Xylene ND

858 549 ugSample 112919 1048 120619 2143 1Methylene Chloride ND

858 412 ugSample 112919 1048 120619 2143 1Naphthalene ND

858 220 ugSample 112919 1048 120619 2143 1n-Butylbenzene ND

858 185 ugSample 112919 1048 120619 2143 1n-Propylbenzene ND

858 0892 ugSample 112919 1048 120619 2143 1o-Xylene ND

858 168 ugSample 112919 1048 120619 2143 1sec-Butylbenzene ND

858 185 ugSample 112919 1048 120619 2143 1Styrene ND

858 151 ugSample 112919 1048 120619 2143 1tert-Butylbenzene ND

858 113 ugSample 112919 1048 120619 2143 1Tetrachloroethene ND

858 158 ugSample 112919 1048 120619 2143 1Toluene ND

858 0892 ugSample 112919 1048 120619 2143 1trans-12-Dichloroethene ND

858 302 ugSample 112919 1048 120619 2143 1trans-13-Dichloropropene ND

858 0618 ugSample 112919 1048 120619 2143 1Trichloroethene ND

172 165 ugSample 112919 1048 120619 2143 1Trichlorofluoromethane ND

172 412 ugSample 112919 1048 120619 2143 1Vinyl chloride ND

Unknown 201 T J ugSample 113 112919 1048 120619 2143 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2143112919 1048T JUnknown 996 ugSample 118

1120619 2143112919 1048T J NCyclohexane 110-82-7248 ugSample 442

1120619 2143112919 1048T J N1-Dodecene 112-41-4105 ugSample 1207

1120619 2143112919 1048T J NCyclohexane hexyl- 4292-75-5129 ugSample 1269

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1048 120619 2143 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 112919 1048 120619 2143 157 - 152

Dibromofluoromethane (Surr) 102 112919 1048 120619 2143 162 - 134

Toluene-d8 (Surr) 97 112919 1048 120619 2143 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 9710 1830 915 ugSample 112919 1048 121119 2203 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-3Client Sample ID Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 9056 - Anions Ion Chromatography (Continued)RL MDL

Hydrogen Fluoride ND 755 343 ugSample 112919 1048 121719 2029 20

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-4Client Sample ID Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 264 349 ugSample 112919 1048 120619 2208 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

529 529 ugSample 112919 1048 120619 2208 111133-Pentafluorobutane ND

264 381 ugSample 112919 1048 120619 2208 1111-Trichloroethane ND

529 105 ugSample 112919 1048 120619 2208 1111-Trifluoro-22-dichloroethane ND

529 529 ugSample 112919 1048 120619 2208 1111-Trifluoroethane ND

264 508 ugSample 112919 1048 120619 2208 11122-Tetrachloroethane ND

529 296 ugSample 112919 1048 120619 2208 1112-Trichloro-122-trifluoroethane ND

529 529 ugSample 112919 1048 120619 2208 1112-trichloro-1-fluoroethane ND

264 275 ugSample 112919 1048 120619 2208 1112-Trichloroethane ND

529 264 ugSample 112919 1048 120619 2208 111-Dichloro-1-fluoroethane ND

529 529 ugSample 112919 1048 120619 2208 111-dichloro-22-difluoroethane ND

529 529 ugSample 112919 1048 120619 2208 111-dichloro-22-difluoroethene ND

264 317 ugSample 112919 1048 120619 2208 111-Dichloroethane ND

264 391 ugSample 112919 1048 120619 2208 111-Dichloroethene ND

264 286 ugSample 112919 1048 120619 2208 111-Dichloropropene ND

529 529 ugSample 112919 1048 120619 2208 111-Difluoroethene ND

529 529 ugSample 112919 1048 120619 2208 1122-trichloro-11-difluoroethane ND

264 846 ugSample 112919 1048 120619 2208 1123-Trichlorobenzene ND

264 656 ugSample 112919 1048 120619 2208 1123-Trichloropropane ND

264 889 ugSample 112919 1048 120619 2208 1124-Trichlorobenzene ND

264 550 ugSample 112919 1048 120619 2208 1124-Trimethylbenzene ND

529 931 ugSample 112919 1048 120619 2208 112-Dibromo-3-Chloropropane ND

264 349 ugSample 112919 1048 120619 2208 112-Dibromoethane (EDB) ND

529 529 ugSample 112919 1048 120619 2208 112-dichloro-11-difluoroethane ND

264 465 ugSample 112919 1048 120619 2208 112-Dichlorobenzene ND

264 444 ugSample 112919 1048 120619 2208 112-Dichloroethane ND

264 264 ugSample 112919 1048 120619 2208 112-Dichloropropane ND

264 550 ugSample 112919 1048 120619 2208 1135-Trimethylbenzene ND

264 455 ugSample 112919 1048 120619 2208 113-Dichlorobenzene ND

264 296 ugSample 112919 1048 120619 2208 113-Dichloropropane ND

264 529 ugSample 112919 1048 120619 2208 114-Dichlorobenzene ND

529 539 ugSample 112919 1048 120619 2208 11-Chloro-11-difluoroethane ND

529 529 ugSample 112919 1048 120619 2208 122-dichloro-11-difluoroethylmethyl

ether

ND

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-4Client Sample ID Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

22-Dichloropropane ND 264 772 ugSample 112919 1048 120619 2208 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

106 169 ugSample 112919 1048 120619 2208 12-Butanone (MEK) ND

529 783 ugSample 112919 1048 120619 2208 12-chloro-111444-hexafluoro-2-but

ene

ND

529 529 ugSample 112919 1048 120619 2208 12-Chloro-111-Trifluoroethane ND

264 497 ugSample 112919 1048 120619 2208 12-Chlorotoluene ND

106 243 ugSample 112919 1048 120619 2208 12-Hexanone ND

231 231 ugSample 112919 1048 120619 2208 12-MTP as HFPO 636

264 550 ugSample 112919 1048 120619 2208 14-Chlorotoluene ND

264 709 ugSample 112919 1048 120619 2208 14-Isopropyltoluene ND

106 169 ugSample 112919 1048 120619 2208 14-Methyl-2-pentanone (MIBK) ND

106 624 ugSample 112919 1048 120619 2208 1Acetone ND

264 508 ugSample 112919 1048 120619 2208 1Benzene ND

264 370 ugSample 112919 1048 120619 2208 1Bromobenzene ND

264 592 ugSample 112919 1048 120619 2208 1Bromochloromethane ND

264 455 ugSample 112919 1048 120619 2208 1Bromodichloromethane ND

264 804 ugSample 112919 1048 120619 2208 1Bromoform ND

529 307 ugSample 112919 1048 120619 2208 1Bromomethane ND

264 656 ugSample 112919 1048 120619 2208 1Carbon disulfide ND

264 349 ugSample 112919 1048 120619 2208 1Carbon tetrachloride ND

777 777 ugSample 112919 1048 120619 2208 1Carbonyl Difluoride ND

264 381 ugSample 112919 1048 120619 2208 1Chlorobenzene ND

264 571 ugSample 112919 1048 120619 2208 1Chlorodibromomethane ND

529 116 ugSample 112919 1048 120619 2208 1Chloroethane ND

264 307 ugSample 112919 1048 120619 2208 1Chloroform ND

529 220 ugSample 112919 1048 120619 2208 1Chloromethane ND

264 212 ugSample 112919 1048 120619 2208 1cis-12-Dichloroethene ND

264 455 ugSample 112919 1048 120619 2208 1cis-13-Dichloropropene ND

264 254 ugSample 112919 1048 120619 2208 1Dibromomethane ND

529 931 ugSample 112919 1048 120619 2208 1Dichlorodifluoromethane ND

264 434 ugSample 112919 1048 120619 2208 1Ethylbenzene ND

264 264 ugSample 112919 1048 120619 2208 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

264 698 ugSample 112919 1048 120619 2208 1Hexachlorobutadiene ND

253 253 ugSample 112919 1048 120619 2208 1HFPO dimer methyl ester as

HFPO-DA

ND

264 370 ugSample 112919 1048 120619 2208 1Isopropylbenzene ND

529 434 ugSample 112919 1048 120619 2208 1mp-Xylene ND

264 169 ugSample 112919 1048 120619 2208 1Methylene Chloride ND

264 127 ugSample 112919 1048 120619 2208 1Naphthalene ND

264 677 ugSample 112919 1048 120619 2208 1n-Butylbenzene ND

264 571 ugSample 112919 1048 120619 2208 1n-Propylbenzene ND

264 275 ugSample 112919 1048 120619 2208 1o-Xylene ND

264 518 ugSample 112919 1048 120619 2208 1sec-Butylbenzene ND

264 571 ugSample 112919 1048 120619 2208 1Styrene ND

264 465 ugSample 112919 1048 120619 2208 1tert-Butylbenzene ND

264 349 ugSample 112919 1048 120619 2208 1Tetrachloroethene ND

264 487 ugSample 112919 1048 120619 2208 1Toluene ND

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12232019Page 22 of 89473

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-4Client Sample ID Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

trans-12-Dichloroethene ND 264 275 ugSample 112919 1048 120619 2208 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

264 931 ugSample 112919 1048 120619 2208 1trans-13-Dichloropropene ND

264 190 ugSample 112919 1048 120619 2208 1Trichloroethene ND

529 508 ugSample 112919 1048 120619 2208 1Trichlorofluoromethane ND

529 127 ugSample 112919 1048 120619 2208 1Vinyl chloride ND

Unknown 365 T J ugSample 113 112919 1048 120619 2208 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2208112919 1048T JUnknown 452 ugSample 118

1120619 2208112919 1048T J NCyclohexane 110-82-7419 ugSample 442

12-Dichloroethane-d4 (Surr) 120 70 - 160 112919 1048 120619 2208 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 110 112919 1048 120619 2208 157 - 152

Dibromofluoromethane (Surr) 104 112919 1048 120619 2208 162 - 134

Toluene-d8 (Surr) 96 112919 1048 120619 2208 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 22000 5640 2820 ugSample 112919 1048 121219 1510 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2330 1060 ugSample 112919 1048 121719 2051 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-5Client Sample ID Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 241 318 ugSample 112919 1048 120619 2232 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

482 482 ugSample 112919 1048 120619 2232 111133-Pentafluorobutane ND

241 347 ugSample 112919 1048 120619 2232 1111-Trichloroethane ND

482 954 ugSample 112919 1048 120619 2232 1111-Trifluoro-22-dichloroethane ND

482 482 ugSample 112919 1048 120619 2232 1111-Trifluoroethane ND

241 462 ugSample 112919 1048 120619 2232 11122-Tetrachloroethane ND

482 270 ugSample 112919 1048 120619 2232 1112-Trichloro-122-trifluoroethane ND

482 482 ugSample 112919 1048 120619 2232 1112-trichloro-1-fluoroethane ND

241 250 ugSample 112919 1048 120619 2232 1112-Trichloroethane ND

482 241 ugSample 112919 1048 120619 2232 111-Dichloro-1-fluoroethane ND

482 482 ugSample 112919 1048 120619 2232 111-dichloro-22-difluoroethane ND

482 482 ugSample 112919 1048 120619 2232 111-dichloro-22-difluoroethene ND

241 289 ugSample 112919 1048 120619 2232 111-Dichloroethane ND

241 356 ugSample 112919 1048 120619 2232 111-Dichloroethene ND

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-5Client Sample ID Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

11-Dichloropropene ND 241 260 ugSample 112919 1048 120619 2232 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

482 482 ugSample 112919 1048 120619 2232 111-Difluoroethene ND

482 482 ugSample 112919 1048 120619 2232 1122-trichloro-11-difluoroethane ND

241 771 ugSample 112919 1048 120619 2232 1123-Trichlorobenzene ND

241 597 ugSample 112919 1048 120619 2232 1123-Trichloropropane ND

241 809 ugSample 112919 1048 120619 2232 1124-Trichlorobenzene ND

241 501 ugSample 112919 1048 120619 2232 1124-Trimethylbenzene ND

482 848 ugSample 112919 1048 120619 2232 112-Dibromo-3-Chloropropane ND

241 318 ugSample 112919 1048 120619 2232 112-Dibromoethane (EDB) ND

482 482 ugSample 112919 1048 120619 2232 112-dichloro-11-difluoroethane ND

241 424 ugSample 112919 1048 120619 2232 112-Dichlorobenzene ND

241 405 ugSample 112919 1048 120619 2232 112-Dichloroethane ND

241 241 ugSample 112919 1048 120619 2232 112-Dichloropropane ND

241 501 ugSample 112919 1048 120619 2232 1135-Trimethylbenzene ND

241 414 ugSample 112919 1048 120619 2232 113-Dichlorobenzene ND

241 270 ugSample 112919 1048 120619 2232 113-Dichloropropane ND

241 482 ugSample 112919 1048 120619 2232 114-Dichlorobenzene ND

482 491 ugSample 112919 1048 120619 2232 11-Chloro-11-difluoroethane ND

482 482 ugSample 112919 1048 120619 2232 122-dichloro-11-difluoroethylmethyl

ether

ND

241 703 ugSample 112919 1048 120619 2232 122-Dichloropropane ND

963 154 ugSample 112919 1048 120619 2232 12-Butanone (MEK) ND

482 713 ugSample 112919 1048 120619 2232 12-chloro-111444-hexafluoro-2-but

ene

ND

482 482 ugSample 112919 1048 120619 2232 12-Chloro-111-Trifluoroethane ND

241 453 ugSample 112919 1048 120619 2232 12-Chlorotoluene ND

963 222 ugSample 112919 1048 120619 2232 12-Hexanone ND

210 210 ugSample 112919 1048 120619 2232 12-MTP as HFPO 490

241 501 ugSample 112919 1048 120619 2232 14-Chlorotoluene ND

241 645 ugSample 112919 1048 120619 2232 14-Isopropyltoluene ND

963 154 ugSample 112919 1048 120619 2232 14-Methyl-2-pentanone (MIBK) ND

963 568 ugSample 112919 1048 120619 2232 1Acetone ND

241 462 ugSample 112919 1048 120619 2232 1Benzene ND

241 337 ugSample 112919 1048 120619 2232 1Bromobenzene ND

241 540 ugSample 112919 1048 120619 2232 1Bromochloromethane ND

241 414 ugSample 112919 1048 120619 2232 1Bromodichloromethane ND

241 732 ugSample 112919 1048 120619 2232 1Bromoform ND

482 279 ugSample 112919 1048 120619 2232 1Bromomethane ND

241 597 ugSample 112919 1048 120619 2232 1Carbon disulfide ND

241 318 ugSample 112919 1048 120619 2232 1Carbon tetrachloride ND

706 706 ugSample 112919 1048 120619 2232 1Carbonyl Difluoride ND

241 347 ugSample 112919 1048 120619 2232 1Chlorobenzene ND

241 520 ugSample 112919 1048 120619 2232 1Chlorodibromomethane ND

482 106 ugSample 112919 1048 120619 2232 1Chloroethane ND

241 279 ugSample 112919 1048 120619 2232 1Chloroform ND

482 200 ugSample 112919 1048 120619 2232 1Chloromethane ND

241 193 ugSample 112919 1048 120619 2232 1cis-12-Dichloroethene ND

241 414 ugSample 112919 1048 120619 2232 1cis-13-Dichloropropene ND

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-5Client Sample ID Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Dibromomethane ND 241 231 ugSample 112919 1048 120619 2232 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

482 848 ugSample 112919 1048 120619 2232 1Dichlorodifluoromethane ND

241 395 ugSample 112919 1048 120619 2232 1Ethylbenzene ND

241 241 ugSample 112919 1048 120619 2232 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

241 636 ugSample 112919 1048 120619 2232 1Hexachlorobutadiene ND

231 231 ugSample 112919 1048 120619 2232 1HFPO dimer methyl ester as

HFPO-DA

ND

241 337 ugSample 112919 1048 120619 2232 1Isopropylbenzene ND

482 395 ugSample 112919 1048 120619 2232 1mp-Xylene ND

241 154 ugSample 112919 1048 120619 2232 1Methylene Chloride ND

241 116 ugSample 112919 1048 120619 2232 1Naphthalene ND

241 617 ugSample 112919 1048 120619 2232 1n-Butylbenzene ND

241 520 ugSample 112919 1048 120619 2232 1n-Propylbenzene ND

241 250 ugSample 112919 1048 120619 2232 1o-Xylene ND

241 472 ugSample 112919 1048 120619 2232 1sec-Butylbenzene ND

241 520 ugSample 112919 1048 120619 2232 1Styrene ND

241 424 ugSample 112919 1048 120619 2232 1tert-Butylbenzene ND

241 318 ugSample 112919 1048 120619 2232 1Tetrachloroethene ND

241 443 ugSample 112919 1048 120619 2232 1Toluene ND

241 250 ugSample 112919 1048 120619 2232 1trans-12-Dichloroethene ND

241 848 ugSample 112919 1048 120619 2232 1trans-13-Dichloropropene ND

241 173 ugSample 112919 1048 120619 2232 1Trichloroethene ND

482 462 ugSample 112919 1048 120619 2232 1Trichlorofluoromethane ND

482 116 ugSample 112919 1048 120619 2232 1Vinyl chloride ND

Unknown 223 T J ugSample 113 112919 1048 120619 2232 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2232112919 1048T J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-8104 ugSample 118

1120619 2232112919 1048T J NCyclohexane 110-82-7410 ugSample 442

1120619 2232112919 1048T JUnknown 309 ugSample 1317

12-Dichloroethane-d4 (Surr) 121 70 - 160 112919 1048 120619 2232 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1048 120619 2232 157 - 152

Dibromofluoromethane (Surr) 106 112919 1048 120619 2232 162 - 134

Toluene-d8 (Surr) 95 112919 1048 120619 2232 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 4360 J 5140 2570 ugSample 112919 1048 121119 2330 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2120 963 ugSample 112919 1048 121719 2114 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-6Client Sample ID Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 313 413 ugSample 112919 1048 120619 2257 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

627 627 ugSample 112919 1048 120619 2257 111133-Pentafluorobutane ND

313 451 ugSample 112919 1048 120619 2257 1111-Trichloroethane ND

627 124 ugSample 112919 1048 120619 2257 1111-Trifluoro-22-dichloroethane ND

627 627 ugSample 112919 1048 120619 2257 1111-Trifluoroethane ND

313 601 ugSample 112919 1048 120619 2257 11122-Tetrachloroethane ND

627 351 ugSample 112919 1048 120619 2257 1112-Trichloro-122-trifluoroethane ND

627 627 ugSample 112919 1048 120619 2257 1112-trichloro-1-fluoroethane ND

313 326 ugSample 112919 1048 120619 2257 1112-Trichloroethane ND

627 313 ugSample 112919 1048 120619 2257 111-Dichloro-1-fluoroethane ND

627 627 ugSample 112919 1048 120619 2257 111-dichloro-22-difluoroethane ND

627 627 ugSample 112919 1048 120619 2257 111-dichloro-22-difluoroethene ND

313 376 ugSample 112919 1048 120619 2257 111-Dichloroethane ND

313 464 ugSample 112919 1048 120619 2257 111-Dichloroethene ND

313 338 ugSample 112919 1048 120619 2257 111-Dichloropropene ND

627 627 ugSample 112919 1048 120619 2257 111-Difluoroethene ND

627 627 ugSample 112919 1048 120619 2257 1122-trichloro-11-difluoroethane ND

313 100 ugSample 112919 1048 120619 2257 1123-Trichlorobenzene ND

313 777 ugSample 112919 1048 120619 2257 1123-Trichloropropane ND

313 105 ugSample 112919 1048 120619 2257 1124-Trichlorobenzene ND

313 652 ugSample 112919 1048 120619 2257 1124-Trimethylbenzene ND

627 110 ugSample 112919 1048 120619 2257 112-Dibromo-3-Chloropropane ND

313 413 ugSample 112919 1048 120619 2257 112-Dibromoethane (EDB) ND

627 627 ugSample 112919 1048 120619 2257 112-dichloro-11-difluoroethane ND

313 551 ugSample 112919 1048 120619 2257 112-Dichlorobenzene ND

313 526 ugSample 112919 1048 120619 2257 112-Dichloroethane ND

313 313 ugSample 112919 1048 120619 2257 112-Dichloropropane ND

313 652 ugSample 112919 1048 120619 2257 1135-Trimethylbenzene ND

313 539 ugSample 112919 1048 120619 2257 113-Dichlorobenzene ND

313 351 ugSample 112919 1048 120619 2257 113-Dichloropropane ND

313 627 ugSample 112919 1048 120619 2257 114-Dichlorobenzene ND

627 639 ugSample 112919 1048 120619 2257 11-Chloro-11-difluoroethane ND

627 627 ugSample 112919 1048 120619 2257 122-dichloro-11-difluoroethylmethyl

ether

ND

313 915 ugSample 112919 1048 120619 2257 122-Dichloropropane ND

125 200 ugSample 112919 1048 120619 2257 12-Butanone (MEK) ND

627 927 ugSample 112919 1048 120619 2257 12-chloro-111444-hexafluoro-2-but

ene

ND

627 627 ugSample 112919 1048 120619 2257 12-Chloro-111-Trifluoroethane ND

313 589 ugSample 112919 1048 120619 2257 12-Chlorotoluene ND

125 288 ugSample 112919 1048 120619 2257 12-Hexanone ND

273 273 ugSample 112919 1048 120619 2257 12-MTP as HFPO 672

313 652 ugSample 112919 1048 120619 2257 14-Chlorotoluene ND

313 840 ugSample 112919 1048 120619 2257 14-Isopropyltoluene ND

125 200 ugSample 112919 1048 120619 2257 14-Methyl-2-pentanone (MIBK) ND

125 739 ugSample 112919 1048 120619 2257 1Acetone ND

313 601 ugSample 112919 1048 120619 2257 1Benzene ND

313 439 ugSample 112919 1048 120619 2257 1Bromobenzene ND

Eurofins TestAmerica Knoxville

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ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-6Client Sample ID Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromochloromethane ND 313 702 ugSample 112919 1048 120619 2257 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

313 539 ugSample 112919 1048 120619 2257 1Bromodichloromethane ND

313 952 ugSample 112919 1048 120619 2257 1Bromoform ND

627 363 ugSample 112919 1048 120619 2257 1Bromomethane ND

313 777 ugSample 112919 1048 120619 2257 1Carbon disulfide ND

313 413 ugSample 112919 1048 120619 2257 1Carbon tetrachloride ND

916 916 ugSample 112919 1048 120619 2257 1Carbonyl Difluoride ND

313 451 ugSample 112919 1048 120619 2257 1Chlorobenzene ND

313 677 ugSample 112919 1048 120619 2257 1Chlorodibromomethane ND

627 138 ugSample 112919 1048 120619 2257 1Chloroethane ND

313 363 ugSample 112919 1048 120619 2257 1Chloroform ND

627 261 ugSample 112919 1048 120619 2257 1Chloromethane ND

313 251 ugSample 112919 1048 120619 2257 1cis-12-Dichloroethene ND

313 539 ugSample 112919 1048 120619 2257 1cis-13-Dichloropropene ND

313 301 ugSample 112919 1048 120619 2257 1Dibromomethane ND

627 110 ugSample 112919 1048 120619 2257 1Dichlorodifluoromethane ND

313 514 ugSample 112919 1048 120619 2257 1Ethylbenzene ND

313 313 ugSample 112919 1048 120619 2257 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

313 827 ugSample 112919 1048 120619 2257 1Hexachlorobutadiene ND

300 300 ugSample 112919 1048 120619 2257 1HFPO dimer methyl ester as

HFPO-DA

ND

313 439 ugSample 112919 1048 120619 2257 1Isopropylbenzene ND

627 514 ugSample 112919 1048 120619 2257 1mp-Xylene ND

313 200 ugSample 112919 1048 120619 2257 1Methylene Chloride ND

313 150 ugSample 112919 1048 120619 2257 1Naphthalene ND

313 802 ugSample 112919 1048 120619 2257 1n-Butylbenzene ND

313 677 ugSample 112919 1048 120619 2257 1n-Propylbenzene ND

313 326 ugSample 112919 1048 120619 2257 1o-Xylene ND

313 614 ugSample 112919 1048 120619 2257 1sec-Butylbenzene ND

313 677 ugSample 112919 1048 120619 2257 1Styrene ND

313 551 ugSample 112919 1048 120619 2257 1tert-Butylbenzene ND

313 413 ugSample 112919 1048 120619 2257 1Tetrachloroethene ND

313 576 ugSample 112919 1048 120619 2257 1Toluene ND

313 326 ugSample 112919 1048 120619 2257 1trans-12-Dichloroethene ND

313 110 ugSample 112919 1048 120619 2257 1trans-13-Dichloropropene ND

313 226 ugSample 112919 1048 120619 2257 1Trichloroethene ND

627 601 ugSample 112919 1048 120619 2257 1Trichlorofluoromethane ND

627 150 ugSample 112919 1048 120619 2257 1Vinyl chloride ND

Unknown 273 T J ugSample 113 112919 1048 120619 2257 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2257112919 1048T J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-8160 ugSample 118

12-Dichloroethane-d4 (Surr) 118 70 - 160 112919 1048 120619 2257 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 108 112919 1048 120619 2257 157 - 152

Eurofins TestAmerica Knoxville

12232019Page 27 of 89478

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-6Client Sample ID Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)

Dibromofluoromethane (Surr) 105 62 - 134 112919 1048 120619 2257 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Toluene-d8 (Surr) 97 112919 1048 120619 2257 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 3970 J 6680 3340 ugSample 112919 1048 121119 2350 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2760 1250 ugSample 112919 1048 121719 2137 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-7Client Sample ID Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 302 399 ugSample 112919 1048 120619 2321 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

604 604 ugSample 112919 1048 120619 2321 111133-Pentafluorobutane ND

302 435 ugSample 112919 1048 120619 2321 1111-Trichloroethane ND

604 120 ugSample 112919 1048 120619 2321 1111-Trifluoro-22-dichloroethane ND

604 604 ugSample 112919 1048 120619 2321 1111-Trifluoroethane ND

302 580 ugSample 112919 1048 120619 2321 11122-Tetrachloroethane ND

604 338 ugSample 112919 1048 120619 2321 1112-Trichloro-122-trifluoroethane ND

604 604 ugSample 112919 1048 120619 2321 1112-trichloro-1-fluoroethane ND

302 314 ugSample 112919 1048 120619 2321 1112-Trichloroethane ND

604 302 ugSample 112919 1048 120619 2321 111-Dichloro-1-fluoroethane ND

604 604 ugSample 112919 1048 120619 2321 111-dichloro-22-difluoroethane ND

604 604 ugSample 112919 1048 120619 2321 111-dichloro-22-difluoroethene ND

302 362 ugSample 112919 1048 120619 2321 111-Dichloroethane ND

302 447 ugSample 112919 1048 120619 2321 111-Dichloroethene ND

302 326 ugSample 112919 1048 120619 2321 111-Dichloropropene ND

604 604 ugSample 112919 1048 120619 2321 111-Difluoroethene ND

604 604 ugSample 112919 1048 120619 2321 1122-trichloro-11-difluoroethane ND

302 967 ugSample 112919 1048 120619 2321 1123-Trichlorobenzene ND

302 749 ugSample 112919 1048 120619 2321 1123-Trichloropropane ND

302 101 ugSample 112919 1048 120619 2321 1124-Trichlorobenzene ND

302 628 ugSample 112919 1048 120619 2321 1124-Trimethylbenzene ND

604 106 ugSample 112919 1048 120619 2321 112-Dibromo-3-Chloropropane ND

302 399 ugSample 112919 1048 120619 2321 112-Dibromoethane (EDB) ND

604 604 ugSample 112919 1048 120619 2321 112-dichloro-11-difluoroethane ND

302 532 ugSample 112919 1048 120619 2321 112-Dichlorobenzene ND

302 507 ugSample 112919 1048 120619 2321 112-Dichloroethane ND

302 302 ugSample 112919 1048 120619 2321 112-Dichloropropane ND

Eurofins TestAmerica Knoxville

12232019Page 28 of 89479

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-7Client Sample ID Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

135-Trimethylbenzene ND 302 628 ugSample 112919 1048 120619 2321 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

302 520 ugSample 112919 1048 120619 2321 113-Dichlorobenzene ND

302 338 ugSample 112919 1048 120619 2321 113-Dichloropropane ND

302 604 ugSample 112919 1048 120619 2321 114-Dichlorobenzene ND

604 616 ugSample 112919 1048 120619 2321 11-Chloro-11-difluoroethane ND

604 604 ugSample 112919 1048 120619 2321 122-dichloro-11-difluoroethylmethyl

ether

ND

302 882 ugSample 112919 1048 120619 2321 122-Dichloropropane ND

121 193 ugSample 112919 1048 120619 2321 12-Butanone (MEK) ND

604 894 ugSample 112919 1048 120619 2321 12-chloro-111444-hexafluoro-2-but

ene

ND

604 604 ugSample 112919 1048 120619 2321 12-Chloro-111-Trifluoroethane ND

302 568 ugSample 112919 1048 120619 2321 12-Chlorotoluene ND

121 278 ugSample 112919 1048 120619 2321 12-Hexanone ND

264 264 ugSample 112919 1048 120619 2321 12-MTP as HFPO 467

302 628 ugSample 112919 1048 120619 2321 14-Chlorotoluene ND

302 809 ugSample 112919 1048 120619 2321 14-Isopropyltoluene ND

121 193 ugSample 112919 1048 120619 2321 14-Methyl-2-pentanone (MIBK) ND

121 713 ugSample 112919 1048 120619 2321 1Acetone ND

302 580 ugSample 112919 1048 120619 2321 1Benzene ND

302 423 ugSample 112919 1048 120619 2321 1Bromobenzene ND

302 677 ugSample 112919 1048 120619 2321 1Bromochloromethane ND

302 520 ugSample 112919 1048 120619 2321 1Bromodichloromethane ND

302 918 ugSample 112919 1048 120619 2321 1Bromoform ND

604 350 ugSample 112919 1048 120619 2321 1Bromomethane ND

302 749 ugSample 112919 1048 120619 2321 1Carbon disulfide ND

302 399 ugSample 112919 1048 120619 2321 1Carbon tetrachloride ND

887 887 ugSample 112919 1048 120619 2321 1Carbonyl Difluoride ND

302 435 ugSample 112919 1048 120619 2321 1Chlorobenzene ND

302 652 ugSample 112919 1048 120619 2321 1Chlorodibromomethane ND

604 133 ugSample 112919 1048 120619 2321 1Chloroethane ND

302 350 ugSample 112919 1048 120619 2321 1Chloroform ND

604 251 ugSample 112919 1048 120619 2321 1Chloromethane ND

302 242 ugSample 112919 1048 120619 2321 1cis-12-Dichloroethene ND

302 520 ugSample 112919 1048 120619 2321 1cis-13-Dichloropropene ND

302 290 ugSample 112919 1048 120619 2321 1Dibromomethane ND

604 106 ugSample 112919 1048 120619 2321 1Dichlorodifluoromethane ND

302 495 ugSample 112919 1048 120619 2321 1Ethylbenzene ND

302 302 ugSample 112919 1048 120619 2321 1Heptafluoropropyl 1222-tetrafluoroethyl ether

550

302 797 ugSample 112919 1048 120619 2321 1Hexachlorobutadiene ND

290 290 ugSample 112919 1048 120619 2321 1HFPO dimer methyl ester as

HFPO-DA

ND

302 423 ugSample 112919 1048 120619 2321 1Isopropylbenzene ND

604 495 ugSample 112919 1048 120619 2321 1mp-Xylene ND

302 193 ugSample 112919 1048 120619 2321 1Methylene Chloride 116

302 145 ugSample 112919 1048 120619 2321 1Naphthalene ND

302 773 ugSample 112919 1048 120619 2321 1n-Butylbenzene ND

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-7Client Sample ID Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

n-Propylbenzene ND 302 652 ugSample 112919 1048 120619 2321 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

302 314 ugSample 112919 1048 120619 2321 1o-Xylene ND

302 592 ugSample 112919 1048 120619 2321 1sec-Butylbenzene ND

302 652 ugSample 112919 1048 120619 2321 1Styrene ND

302 532 ugSample 112919 1048 120619 2321 1tert-Butylbenzene ND

302 399 ugSample 112919 1048 120619 2321 1Tetrachloroethene ND

302 556 ugSample 112919 1048 120619 2321 1Toluene ND

302 314 ugSample 112919 1048 120619 2321 1trans-12-Dichloroethene ND

302 106 ugSample 112919 1048 120619 2321 1trans-13-Dichloropropene ND

302 217 ugSample 112919 1048 120619 2321 1Trichloroethene ND

604 580 ugSample 112919 1048 120619 2321 1Trichlorofluoromethane ND

604 145 ugSample 112919 1048 120619 2321 1Vinyl chloride ND

Unknown 275 T J ugSample 113 112919 1048 120619 2321 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2321112919 1048T JUnknown 2960 ugSample 118

1120619 2321112919 1048T JUnknown 572 ugSample 122

1120619 2321112919 1048T JUnknown 229 ugSample 212

1120619 2321112919 1048T JUnknown 104 ugSample 250

1120619 2321112919 1048T J NCyclohexane 110-82-7363 ugSample 442

12-Dichloroethane-d4 (Surr) 118 70 - 160 112919 1048 120619 2321 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1048 120619 2321 157 - 152

Dibromofluoromethane (Surr) 105 112919 1048 120619 2321 162 - 134

Toluene-d8 (Surr) 96 112919 1048 120619 2321 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 6490 6440 3220 ugSample 112919 1048 121219 0011 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2660 1210 ugSample 112919 1048 121819 0946 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-8Client Sample ID Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 296 390 ugSample 112919 1048 120619 2346 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

591 591 ugSample 112919 1048 120619 2346 111133-Pentafluorobutane ND

296 426 ugSample 112919 1048 120619 2346 1111-Trichloroethane ND

591 117 ugSample 112919 1048 120619 2346 1111-Trifluoro-22-dichloroethane ND

Eurofins TestAmerica Knoxville

12232019Page 30 of 89481

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-8Client Sample ID Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

111-Trifluoroethane ND 591 591 ugSample 112919 1048 120619 2346 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

296 567 ugSample 112919 1048 120619 2346 11122-Tetrachloroethane ND

591 331 ugSample 112919 1048 120619 2346 1112-Trichloro-122-trifluoroethane ND

591 591 ugSample 112919 1048 120619 2346 1112-trichloro-1-fluoroethane ND

296 307 ugSample 112919 1048 120619 2346 1112-Trichloroethane ND

591 296 ugSample 112919 1048 120619 2346 111-Dichloro-1-fluoroethane ND

591 591 ugSample 112919 1048 120619 2346 111-dichloro-22-difluoroethane ND

591 591 ugSample 112919 1048 120619 2346 111-dichloro-22-difluoroethene ND

296 355 ugSample 112919 1048 120619 2346 111-Dichloroethane ND

296 437 ugSample 112919 1048 120619 2346 111-Dichloroethene ND

296 319 ugSample 112919 1048 120619 2346 111-Dichloropropene ND

591 591 ugSample 112919 1048 120619 2346 111-Difluoroethene ND

591 591 ugSample 112919 1048 120619 2346 1122-trichloro-11-difluoroethane ND

296 946 ugSample 112919 1048 120619 2346 1123-Trichlorobenzene ND

296 733 ugSample 112919 1048 120619 2346 1123-Trichloropropane ND

296 993 ugSample 112919 1048 120619 2346 1124-Trichlorobenzene ND

296 615 ugSample 112919 1048 120619 2346 1124-Trimethylbenzene ND

591 104 ugSample 112919 1048 120619 2346 112-Dibromo-3-Chloropropane ND

296 390 ugSample 112919 1048 120619 2346 112-Dibromoethane (EDB) ND

591 591 ugSample 112919 1048 120619 2346 112-dichloro-11-difluoroethane ND

296 520 ugSample 112919 1048 120619 2346 112-Dichlorobenzene ND

296 496 ugSample 112919 1048 120619 2346 112-Dichloroethane ND

296 296 ugSample 112919 1048 120619 2346 112-Dichloropropane ND

296 615 ugSample 112919 1048 120619 2346 1135-Trimethylbenzene ND

296 508 ugSample 112919 1048 120619 2346 113-Dichlorobenzene ND

296 331 ugSample 112919 1048 120619 2346 113-Dichloropropane ND

296 591 ugSample 112919 1048 120619 2346 114-Dichlorobenzene ND

591 603 ugSample 112919 1048 120619 2346 11-Chloro-11-difluoroethane ND

591 591 ugSample 112919 1048 120619 2346 122-dichloro-11-difluoroethylmethyl

ether

ND

296 863 ugSample 112919 1048 120619 2346 122-Dichloropropane ND

118 189 ugSample 112919 1048 120619 2346 12-Butanone (MEK) ND

591 875 ugSample 112919 1048 120619 2346 12-chloro-111444-hexafluoro-2-but

ene

ND

591 591 ugSample 112919 1048 120619 2346 12-Chloro-111-Trifluoroethane ND

296 556 ugSample 112919 1048 120619 2346 12-Chlorotoluene ND

118 272 ugSample 112919 1048 120619 2346 12-Hexanone ND

259 259 ugSample 112919 1048 120619 2346 12-MTP as HFPO 610

296 615 ugSample 112919 1048 120619 2346 14-Chlorotoluene ND

296 792 ugSample 112919 1048 120619 2346 14-Isopropyltoluene ND

118 189 ugSample 112919 1048 120619 2346 14-Methyl-2-pentanone (MIBK) ND

118 697 ugSample 112919 1048 120619 2346 1Acetone ND

296 567 ugSample 112919 1048 120619 2346 1Benzene ND

296 414 ugSample 112919 1048 120619 2346 1Bromobenzene ND

296 662 ugSample 112919 1048 120619 2346 1Bromochloromethane ND

296 508 ugSample 112919 1048 120619 2346 1Bromodichloromethane ND

296 898 ugSample 112919 1048 120619 2346 1Bromoform ND

591 343 ugSample 112919 1048 120619 2346 1Bromomethane ND

Eurofins TestAmerica Knoxville

12232019Page 31 of 89482

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-8Client Sample ID Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Carbon disulfide ND 296 733 ugSample 112919 1048 120619 2346 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

296 390 ugSample 112919 1048 120619 2346 1Carbon tetrachloride ND

865 865 ugSample 112919 1048 120619 2346 1Carbonyl Difluoride ND

296 426 ugSample 112919 1048 120619 2346 1Chlorobenzene ND

296 638 ugSample 112919 1048 120619 2346 1Chlorodibromomethane ND

591 130 ugSample 112919 1048 120619 2346 1Chloroethane ND

296 343 ugSample 112919 1048 120619 2346 1Chloroform ND

591 246 ugSample 112919 1048 120619 2346 1Chloromethane ND

296 236 ugSample 112919 1048 120619 2346 1cis-12-Dichloroethene ND

296 508 ugSample 112919 1048 120619 2346 1cis-13-Dichloropropene ND

296 284 ugSample 112919 1048 120619 2346 1Dibromomethane ND

591 104 ugSample 112919 1048 120619 2346 1Dichlorodifluoromethane ND

296 485 ugSample 112919 1048 120619 2346 1Ethylbenzene ND

296 296 ugSample 112919 1048 120619 2346 1Heptafluoropropyl 1222-tetrafluoroethyl ether

193

296 780 ugSample 112919 1048 120619 2346 1Hexachlorobutadiene ND

284 284 ugSample 112919 1048 120619 2346 1HFPO dimer methyl ester as

HFPO-DA

ND

296 414 ugSample 112919 1048 120619 2346 1Isopropylbenzene ND

591 485 ugSample 112919 1048 120619 2346 1mp-Xylene ND

296 189 ugSample 112919 1048 120619 2346 1Methylene Chloride ND

296 142 ugSample 112919 1048 120619 2346 1Naphthalene ND

296 757 ugSample 112919 1048 120619 2346 1n-Butylbenzene ND

296 638 ugSample 112919 1048 120619 2346 1n-Propylbenzene ND

296 307 ugSample 112919 1048 120619 2346 1o-Xylene ND

296 579 ugSample 112919 1048 120619 2346 1sec-Butylbenzene ND

296 638 ugSample 112919 1048 120619 2346 1Styrene ND

296 520 ugSample 112919 1048 120619 2346 1tert-Butylbenzene ND

296 390 ugSample 112919 1048 120619 2346 1Tetrachloroethene ND

296 544 ugSample 112919 1048 120619 2346 1Toluene ND

296 307 ugSample 112919 1048 120619 2346 1trans-12-Dichloroethene ND

296 104 ugSample 112919 1048 120619 2346 1trans-13-Dichloropropene ND

296 213 ugSample 112919 1048 120619 2346 1Trichloroethene ND

591 567 ugSample 112919 1048 120619 2346 1Trichlorofluoromethane ND

591 142 ugSample 112919 1048 120619 2346 1Vinyl chloride ND

Unknown 341 T J ugSample 113 112919 1048 120619 2346 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2346112919 1048T JUnknown 2160 ugSample 119

1120619 2346112919 1048T J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-8497 ugSample 122

1120619 2346112919 1048T J NCyclohexane 110-82-7397 ugSample 442

1120619 2346112919 1048T J NCyclotetrasiloxane octamethyl- 556-67-2316 ugSample 878

1120619 2346112919 1048T J NSalicylic acid 2TMS derivative 3789-85-3307 ugSample 1136

1120619 2346112919 1048T JUnknown 563 ugSample 1317

12-Dichloroethane-d4 (Surr) 115 70 - 160 112919 1048 120619 2346 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Eurofins TestAmerica Knoxville

12232019Page 32 of 89483

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-8Client Sample ID Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)

4-Bromofluorobenzene (Surr) 110 57 - 152 112919 1048 120619 2346 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Dibromofluoromethane (Surr) 104 112919 1048 120619 2346 162 - 134

Toluene-d8 (Surr) 97 112919 1048 120619 2346 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 24300 6380 3190 ugSample 112919 1048 121319 1843 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2600 1180 ugSample 112919 1048 121819 1009 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-9Client Sample ID Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND H 308 406 ugSample 112919 1048 120719 0010 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

615 615 ugSample 112919 1048 120719 0010 111133-Pentafluorobutane ND H

308 443 ugSample 112919 1048 120719 0010 1111-Trichloroethane ND H

615 122 ugSample 112919 1048 120719 0010 1111-Trifluoro-22-dichloroethane ND H

615 615 ugSample 112919 1048 120719 0010 1111-Trifluoroethane ND H

308 591 ugSample 112919 1048 120719 0010 11122-Tetrachloroethane ND H

615 345 ugSample 112919 1048 120719 0010 1112-Trichloro-122-trifluoroethane ND H

615 615 ugSample 112919 1048 120719 0010 1112-trichloro-1-fluoroethane ND H

308 320 ugSample 112919 1048 120719 0010 1112-Trichloroethane ND H

615 308 ugSample 112919 1048 120719 0010 111-Dichloro-1-fluoroethane ND H

615 615 ugSample 112919 1048 120719 0010 111-dichloro-22-difluoroethane ND H

615 615 ugSample 112919 1048 120719 0010 111-dichloro-22-difluoroethene ND H

308 369 ugSample 112919 1048 120719 0010 111-Dichloroethane ND H

308 455 ugSample 112919 1048 120719 0010 111-Dichloroethene ND H

308 332 ugSample 112919 1048 120719 0010 111-Dichloropropene ND H

615 615 ugSample 112919 1048 120719 0010 111-Difluoroethene ND H

615 615 ugSample 112919 1048 120719 0010 1122-trichloro-11-difluoroethane ND H

308 985 ugSample 112919 1048 120719 0010 1123-Trichlorobenzene ND H

308 763 ugSample 112919 1048 120719 0010 1123-Trichloropropane ND H

308 103 ugSample 112919 1048 120719 0010 1124-Trichlorobenzene ND H

308 640 ugSample 112919 1048 120719 0010 1124-Trimethylbenzene ND H

615 108 ugSample 112919 1048 120719 0010 112-Dibromo-3-Chloropropane ND H

308 406 ugSample 112919 1048 120719 0010 112-Dibromoethane (EDB) ND H

615 615 ugSample 112919 1048 120719 0010 112-dichloro-11-difluoroethane ND H

308 542 ugSample 112919 1048 120719 0010 112-Dichlorobenzene ND H

308 517 ugSample 112919 1048 120719 0010 112-Dichloroethane ND H

Eurofins TestAmerica Knoxville

12232019Page 33 of 89484

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-9Client Sample ID Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

12-Dichloropropane ND H 308 308 ugSample 112919 1048 120719 0010 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

308 640 ugSample 112919 1048 120719 0010 1135-Trimethylbenzene ND H

308 529 ugSample 112919 1048 120719 0010 113-Dichlorobenzene ND H

308 345 ugSample 112919 1048 120719 0010 113-Dichloropropane ND H

308 615 ugSample 112919 1048 120719 0010 114-Dichlorobenzene ND H

615 628 ugSample 112919 1048 120719 0010 11-Chloro-11-difluoroethane ND H

615 615 ugSample 112919 1048 120719 0010 122-dichloro-11-difluoroethylmethyl

ether

ND H

308 898 ugSample 112919 1048 120719 0010 122-Dichloropropane ND H

123 197 ugSample 112919 1048 120719 0010 12-Butanone (MEK) ND H

615 911 ugSample 112919 1048 120719 0010 12-chloro-111444-hexafluoro-2-but

ene

ND H

615 615 ugSample 112919 1048 120719 0010 12-Chloro-111-Trifluoroethane ND H

308 578 ugSample 112919 1048 120719 0010 12-Chlorotoluene ND H

123 283 ugSample 112919 1048 120719 0010 12-Hexanone ND H

269 269 ugSample 112919 1048 120719 0010 12-MTP as HFPO 609 H

308 640 ugSample 112919 1048 120719 0010 14-Chlorotoluene ND H

308 825 ugSample 112919 1048 120719 0010 14-Isopropyltoluene ND H

123 197 ugSample 112919 1048 120719 0010 14-Methyl-2-pentanone (MIBK) ND H

123 726 ugSample 112919 1048 120719 0010 1Acetone ND H

308 591 ugSample 112919 1048 120719 0010 1Benzene ND H

308 431 ugSample 112919 1048 120719 0010 1Bromobenzene ND H

308 689 ugSample 112919 1048 120719 0010 1Bromochloromethane ND H

308 529 ugSample 112919 1048 120719 0010 1Bromodichloromethane ND H

308 935 ugSample 112919 1048 120719 0010 1Bromoform ND H

615 357 ugSample 112919 1048 120719 0010 1Bromomethane ND H

308 763 ugSample 112919 1048 120719 0010 1Carbon disulfide ND H

308 406 ugSample 112919 1048 120719 0010 1Carbon tetrachloride ND H

901 901 ugSample 112919 1048 120719 0010 1Carbonyl Difluoride ND H

308 443 ugSample 112919 1048 120719 0010 1Chlorobenzene ND H

308 665 ugSample 112919 1048 120719 0010 1Chlorodibromomethane ND H

615 135 ugSample 112919 1048 120719 0010 1Chloroethane ND H

308 357 ugSample 112919 1048 120719 0010 1Chloroform ND H

615 256 ugSample 112919 1048 120719 0010 1Chloromethane ND H

308 246 ugSample 112919 1048 120719 0010 1cis-12-Dichloroethene ND H

308 529 ugSample 112919 1048 120719 0010 1cis-13-Dichloropropene ND H

308 295 ugSample 112919 1048 120719 0010 1Dibromomethane ND H

615 108 ugSample 112919 1048 120719 0010 1Dichlorodifluoromethane ND H

308 505 ugSample 112919 1048 120719 0010 1Ethylbenzene ND H

308 308 ugSample 112919 1048 120719 0010 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND H

308 812 ugSample 112919 1048 120719 0010 1Hexachlorobutadiene ND H

295 295 ugSample 112919 1048 120719 0010 1HFPO dimer methyl ester as

HFPO-DA

ND H

308 431 ugSample 112919 1048 120719 0010 1Isopropylbenzene ND H

615 505 ugSample 112919 1048 120719 0010 1mp-Xylene ND H

308 197 ugSample 112919 1048 120719 0010 1Methylene Chloride ND H

308 148 ugSample 112919 1048 120719 0010 1Naphthalene ND H

Eurofins TestAmerica Knoxville

12232019Page 34 of 89485

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-9Client Sample ID Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

n-Butylbenzene ND H 308 788 ugSample 112919 1048 120719 0010 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

308 665 ugSample 112919 1048 120719 0010 1n-Propylbenzene ND H

308 320 ugSample 112919 1048 120719 0010 1o-Xylene ND H

308 603 ugSample 112919 1048 120719 0010 1sec-Butylbenzene ND H

308 665 ugSample 112919 1048 120719 0010 1Styrene ND H

308 542 ugSample 112919 1048 120719 0010 1tert-Butylbenzene ND H

308 406 ugSample 112919 1048 120719 0010 1Tetrachloroethene ND H

308 566 ugSample 112919 1048 120719 0010 1Toluene ND H

308 320 ugSample 112919 1048 120719 0010 1trans-12-Dichloroethene ND H

308 108 ugSample 112919 1048 120719 0010 1trans-13-Dichloropropene ND H

308 222 ugSample 112919 1048 120719 0010 1Trichloroethene ND H

615 591 ugSample 112919 1048 120719 0010 1Trichlorofluoromethane ND H

615 148 ugSample 112919 1048 120719 0010 1Vinyl chloride ND H

Unknown 490 T H J ugSample 113 112919 1048 120719 0010 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120719 0010112919 1048T H J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-82290 ugSample 118

1120719 0010112919 1048T H J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-8410 ugSample 122

1120719 0010112919 1048T H J NCyclohexane 110-82-7426 ugSample 442

12-Dichloroethane-d4 (Surr) 118 70 - 160 112919 1048 120719 0010 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1048 120719 0010 157 - 152

Dibromofluoromethane (Surr) 104 112919 1048 120719 0010 162 - 134

Toluene-d8 (Surr) 97 112919 1048 120719 0010 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 3770 J 6560 3280 ugSample 112919 1048 121319 1945 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2710 1230 ugSample 112919 1048 121819 1111 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-10Client Sample ID Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND H 304 401 ugSample 112919 1048 120719 0035 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

608 608 ugSample 112919 1048 120719 0035 111133-Pentafluorobutane ND H

304 438 ugSample 112919 1048 120719 0035 1111-Trichloroethane ND H

608 120 ugSample 112919 1048 120719 0035 1111-Trifluoro-22-dichloroethane ND H

Eurofins TestAmerica Knoxville

12232019Page 35 of 89486

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-10Client Sample ID Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

111-Trifluoroethane ND H 608 608 ugSample 112919 1048 120719 0035 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

304 584 ugSample 112919 1048 120719 0035 11122-Tetrachloroethane ND H

608 341 ugSample 112919 1048 120719 0035 1112-Trichloro-122-trifluoroethane ND H

608 608 ugSample 112919 1048 120719 0035 1112-trichloro-1-fluoroethane ND H

304 316 ugSample 112919 1048 120719 0035 1112-Trichloroethane ND H

608 304 ugSample 112919 1048 120719 0035 111-Dichloro-1-fluoroethane ND H

608 608 ugSample 112919 1048 120719 0035 111-dichloro-22-difluoroethane ND H

608 608 ugSample 112919 1048 120719 0035 111-dichloro-22-difluoroethene ND H

304 365 ugSample 112919 1048 120719 0035 111-Dichloroethane ND H

304 450 ugSample 112919 1048 120719 0035 111-Dichloroethene ND H

304 328 ugSample 112919 1048 120719 0035 111-Dichloropropene ND H

608 608 ugSample 112919 1048 120719 0035 111-Difluoroethene ND H

608 608 ugSample 112919 1048 120719 0035 1122-trichloro-11-difluoroethane ND H

304 973 ugSample 112919 1048 120719 0035 1123-Trichlorobenzene ND H

304 754 ugSample 112919 1048 120719 0035 1123-Trichloropropane ND H

304 102 ugSample 112919 1048 120719 0035 1124-Trichlorobenzene ND H

304 632 ugSample 112919 1048 120719 0035 1124-Trimethylbenzene ND H

608 107 ugSample 112919 1048 120719 0035 112-Dibromo-3-Chloropropane ND H

304 401 ugSample 112919 1048 120719 0035 112-Dibromoethane (EDB) ND H

608 608 ugSample 112919 1048 120719 0035 112-dichloro-11-difluoroethane ND H

304 535 ugSample 112919 1048 120719 0035 112-Dichlorobenzene ND H

304 511 ugSample 112919 1048 120719 0035 112-Dichloroethane ND H

304 304 ugSample 112919 1048 120719 0035 112-Dichloropropane ND H

304 632 ugSample 112919 1048 120719 0035 1135-Trimethylbenzene ND H

304 523 ugSample 112919 1048 120719 0035 113-Dichlorobenzene ND H

304 341 ugSample 112919 1048 120719 0035 113-Dichloropropane ND H

304 608 ugSample 112919 1048 120719 0035 114-Dichlorobenzene ND H

608 620 ugSample 112919 1048 120719 0035 11-Chloro-11-difluoroethane ND H

608 608 ugSample 112919 1048 120719 0035 122-dichloro-11-difluoroethylmethyl

ether

ND H

304 888 ugSample 112919 1048 120719 0035 122-Dichloropropane ND H

122 195 ugSample 112919 1048 120719 0035 12-Butanone (MEK) ND H

608 900 ugSample 112919 1048 120719 0035 12-chloro-111444-hexafluoro-2-but

ene

ND H

608 608 ugSample 112919 1048 120719 0035 12-Chloro-111-Trifluoroethane ND H

304 572 ugSample 112919 1048 120719 0035 12-Chlorotoluene ND H

122 280 ugSample 112919 1048 120719 0035 12-Hexanone ND H

266 266 ugSample 112919 1048 120719 0035 12-MTP as HFPO 629 H

304 632 ugSample 112919 1048 120719 0035 14-Chlorotoluene ND H

304 815 ugSample 112919 1048 120719 0035 14-Isopropyltoluene ND H

122 195 ugSample 112919 1048 120719 0035 14-Methyl-2-pentanone (MIBK) ND H

122 718 ugSample 112919 1048 120719 0035 1Acetone ND H

304 584 ugSample 112919 1048 120719 0035 1Benzene ND H

304 426 ugSample 112919 1048 120719 0035 1Bromobenzene ND H

304 681 ugSample 112919 1048 120719 0035 1Bromochloromethane ND H

304 523 ugSample 112919 1048 120719 0035 1Bromodichloromethane ND H

304 924 ugSample 112919 1048 120719 0035 1Bromoform ND H

608 353 ugSample 112919 1048 120719 0035 1Bromomethane ND H

Eurofins TestAmerica Knoxville

12232019Page 36 of 89487

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-10Client Sample ID Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Carbon disulfide ND H 304 754 ugSample 112919 1048 120719 0035 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

304 401 ugSample 112919 1048 120719 0035 1Carbon tetrachloride ND H

894 894 ugSample 112919 1048 120719 0035 1Carbonyl Difluoride ND H

304 438 ugSample 112919 1048 120719 0035 1Chlorobenzene ND H

304 657 ugSample 112919 1048 120719 0035 1Chlorodibromomethane ND H

608 134 ugSample 112919 1048 120719 0035 1Chloroethane ND H

304 353 ugSample 112919 1048 120719 0035 1Chloroform ND H

608 253 ugSample 112919 1048 120719 0035 1Chloromethane ND H

304 243 ugSample 112919 1048 120719 0035 1cis-12-Dichloroethene ND H

304 523 ugSample 112919 1048 120719 0035 1cis-13-Dichloropropene ND H

304 292 ugSample 112919 1048 120719 0035 1Dibromomethane ND H

608 107 ugSample 112919 1048 120719 0035 1Dichlorodifluoromethane ND H

304 499 ugSample 112919 1048 120719 0035 1Ethylbenzene ND H

304 304 ugSample 112919 1048 120719 0035 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND H

304 803 ugSample 112919 1048 120719 0035 1Hexachlorobutadiene ND H

292 292 ugSample 112919 1048 120719 0035 1HFPO dimer methyl ester as

HFPO-DA

ND H

304 426 ugSample 112919 1048 120719 0035 1Isopropylbenzene ND H

608 499 ugSample 112919 1048 120719 0035 1mp-Xylene ND H

304 195 ugSample 112919 1048 120719 0035 1Methylene Chloride ND H

304 146 ugSample 112919 1048 120719 0035 1Naphthalene ND H

304 778 ugSample 112919 1048 120719 0035 1n-Butylbenzene ND H

304 657 ugSample 112919 1048 120719 0035 1n-Propylbenzene ND H

304 316 ugSample 112919 1048 120719 0035 1o-Xylene ND H

304 596 ugSample 112919 1048 120719 0035 1sec-Butylbenzene ND H

304 657 ugSample 112919 1048 120719 0035 1Styrene ND H

304 535 ugSample 112919 1048 120719 0035 1tert-Butylbenzene ND H

304 401 ugSample 112919 1048 120719 0035 1Tetrachloroethene ND H

304 559 ugSample 112919 1048 120719 0035 1Toluene ND H

304 316 ugSample 112919 1048 120719 0035 1trans-12-Dichloroethene ND H

304 107 ugSample 112919 1048 120719 0035 1trans-13-Dichloropropene ND H

304 219 ugSample 112919 1048 120719 0035 1Trichloroethene ND H

608 584 ugSample 112919 1048 120719 0035 1Trichlorofluoromethane ND H

608 146 ugSample 112919 1048 120719 0035 1Vinyl chloride ND H

Butanoic acid heptafluoro- sodium

salt

484 T H J N ugSample 113 2218-54-4 112919 1048 120719 0035 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120719 0035112919 1048T H JUnknown 1700 ugSample 118

1120719 0035112919 1048T H J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-8316 ugSample 122

1120719 0035112919 1048T H J NCyclohexane 110-82-7432 ugSample 442

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1048 120719 0035 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 110 112919 1048 120719 0035 157 - 152

Dibromofluoromethane (Surr) 103 112919 1048 120719 0035 162 - 134

Toluene-d8 (Surr) 97 112919 1048 120719 0035 171 - 139

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12232019Page 37 of 89488

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-10Client Sample ID Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 3540 J 6490 3240 ugSample 112919 1048 121319 2006 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2680 1220 ugSample 112919 1048 121819 1215 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-11Client Sample ID Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND H 314 414 ugSample 112919 1048 120719 0059 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

627 627 ugSample 112919 1048 120719 0059 111133-Pentafluorobutane ND H

314 452 ugSample 112919 1048 120719 0059 1111-Trichloroethane ND H

627 124 ugSample 112919 1048 120719 0059 1111-Trifluoro-22-dichloroethane ND H

627 627 ugSample 112919 1048 120719 0059 1111-Trifluoroethane ND H

314 602 ugSample 112919 1048 120719 0059 11122-Tetrachloroethane ND H

627 351 ugSample 112919 1048 120719 0059 1112-Trichloro-122-trifluoroethane ND H

627 627 ugSample 112919 1048 120719 0059 1112-trichloro-1-fluoroethane ND H

314 326 ugSample 112919 1048 120719 0059 1112-Trichloroethane ND H

627 314 ugSample 112919 1048 120719 0059 111-Dichloro-1-fluoroethane ND H

627 627 ugSample 112919 1048 120719 0059 111-dichloro-22-difluoroethane ND H

627 627 ugSample 112919 1048 120719 0059 111-dichloro-22-difluoroethene ND H

314 376 ugSample 112919 1048 120719 0059 111-Dichloroethane ND H

314 464 ugSample 112919 1048 120719 0059 111-Dichloroethene ND H

314 339 ugSample 112919 1048 120719 0059 111-Dichloropropene ND H

627 627 ugSample 112919 1048 120719 0059 111-Difluoroethene ND H

627 627 ugSample 112919 1048 120719 0059 1122-trichloro-11-difluoroethane ND H

314 100 ugSample 112919 1048 120719 0059 1123-Trichlorobenzene ND H

314 778 ugSample 112919 1048 120719 0059 1123-Trichloropropane ND H

314 105 ugSample 112919 1048 120719 0059 1124-Trichlorobenzene ND H

314 653 ugSample 112919 1048 120719 0059 1124-Trimethylbenzene ND H

627 110 ugSample 112919 1048 120719 0059 112-Dibromo-3-Chloropropane ND H

314 414 ugSample 112919 1048 120719 0059 112-Dibromoethane (EDB) ND H

627 627 ugSample 112919 1048 120719 0059 112-dichloro-11-difluoroethane ND H

314 552 ugSample 112919 1048 120719 0059 112-Dichlorobenzene ND H

314 527 ugSample 112919 1048 120719 0059 112-Dichloroethane ND H

314 314 ugSample 112919 1048 120719 0059 112-Dichloropropane ND H

314 653 ugSample 112919 1048 120719 0059 1135-Trimethylbenzene ND H

314 540 ugSample 112919 1048 120719 0059 113-Dichlorobenzene ND H

314 351 ugSample 112919 1048 120719 0059 113-Dichloropropane ND H

314 627 ugSample 112919 1048 120719 0059 114-Dichlorobenzene ND H

627 640 ugSample 112919 1048 120719 0059 11-Chloro-11-difluoroethane ND H

Eurofins TestAmerica Knoxville

12232019Page 38 of 89489

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-11Client Sample ID Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

22-dichloro-11-difluoroethylmethyl

ether

ND H 627 627 ugSample 112919 1048 120719 0059 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

314 916 ugSample 112919 1048 120719 0059 122-Dichloropropane ND H

125 201 ugSample 112919 1048 120719 0059 12-Butanone (MEK) ND H

627 929 ugSample 112919 1048 120719 0059 12-chloro-111444-hexafluoro-2-but

ene

ND H

627 627 ugSample 112919 1048 120719 0059 12-Chloro-111-Trifluoroethane ND H

314 590 ugSample 112919 1048 120719 0059 12-Chlorotoluene ND H

125 289 ugSample 112919 1048 120719 0059 12-Hexanone ND H

274 274 ugSample 112919 1048 120719 0059 12-MTP as HFPO 609 H

314 653 ugSample 112919 1048 120719 0059 14-Chlorotoluene ND H

314 841 ugSample 112919 1048 120719 0059 14-Isopropyltoluene ND H

125 201 ugSample 112919 1048 120719 0059 14-Methyl-2-pentanone (MIBK) ND H

125 740 ugSample 112919 1048 120719 0059 1Acetone ND H

314 602 ugSample 112919 1048 120719 0059 1Benzene ND H

314 439 ugSample 112919 1048 120719 0059 1Bromobenzene ND H

314 703 ugSample 112919 1048 120719 0059 1Bromochloromethane ND H

314 540 ugSample 112919 1048 120719 0059 1Bromodichloromethane ND H

314 954 ugSample 112919 1048 120719 0059 1Bromoform ND H

627 364 ugSample 112919 1048 120719 0059 1Bromomethane ND H

314 778 ugSample 112919 1048 120719 0059 1Carbon disulfide ND H

314 414 ugSample 112919 1048 120719 0059 1Carbon tetrachloride ND H

916 916 ugSample 112919 1048 120719 0059 1Carbonyl Difluoride ND H

314 452 ugSample 112919 1048 120719 0059 1Chlorobenzene ND H

314 678 ugSample 112919 1048 120719 0059 1Chlorodibromomethane ND H

627 138 ugSample 112919 1048 120719 0059 1Chloroethane ND H

314 364 ugSample 112919 1048 120719 0059 1Chloroform ND H

627 261 ugSample 112919 1048 120719 0059 1Chloromethane ND H

314 251 ugSample 112919 1048 120719 0059 1cis-12-Dichloroethene ND H

314 540 ugSample 112919 1048 120719 0059 1cis-13-Dichloropropene ND H

314 301 ugSample 112919 1048 120719 0059 1Dibromomethane ND H

627 110 ugSample 112919 1048 120719 0059 1Dichlorodifluoromethane ND H

314 515 ugSample 112919 1048 120719 0059 1Ethylbenzene ND H

314 314 ugSample 112919 1048 120719 0059 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND H

314 828 ugSample 112919 1048 120719 0059 1Hexachlorobutadiene ND H

301 301 ugSample 112919 1048 120719 0059 1HFPO dimer methyl ester as

HFPO-DA

ND H

314 439 ugSample 112919 1048 120719 0059 1Isopropylbenzene ND H

627 515 ugSample 112919 1048 120719 0059 1mp-Xylene ND H

314 201 ugSample 112919 1048 120719 0059 1Methylene Chloride ND H

314 151 ugSample 112919 1048 120719 0059 1Naphthalene ND H

314 803 ugSample 112919 1048 120719 0059 1n-Butylbenzene ND H

314 678 ugSample 112919 1048 120719 0059 1n-Propylbenzene ND H

314 326 ugSample 112919 1048 120719 0059 1o-Xylene ND H

314 615 ugSample 112919 1048 120719 0059 1sec-Butylbenzene ND H

314 678 ugSample 112919 1048 120719 0059 1Styrene ND H

314 552 ugSample 112919 1048 120719 0059 1tert-Butylbenzene ND H

Eurofins TestAmerica Knoxville

12232019Page 39 of 89490

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-11Client Sample ID Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Tetrachloroethene ND H 314 414 ugSample 112919 1048 120719 0059 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

314 577 ugSample 112919 1048 120719 0059 1Toluene ND H

314 326 ugSample 112919 1048 120719 0059 1trans-12-Dichloroethene ND H

314 110 ugSample 112919 1048 120719 0059 1trans-13-Dichloropropene ND H

314 226 ugSample 112919 1048 120719 0059 1Trichloroethene ND H

627 602 ugSample 112919 1048 120719 0059 1Trichlorofluoromethane ND H

627 151 ugSample 112919 1048 120719 0059 1Vinyl chloride ND H

Propene hexafluoro- 421 T H J N ugSample 113 116-15-4 112919 1048 120719 0059 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120719 0059112919 1048T H JUnknown 882 ugSample 118

12-Dichloroethane-d4 (Surr) 116 70 - 160 112919 1048 120719 0059 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1048 120719 0059 157 - 152

Dibromofluoromethane (Surr) 105 112919 1048 120719 0059 162 - 134

Toluene-d8 (Surr) 96 112919 1048 120719 0059 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine ND 6690 3350 ugSample 112919 1048 121319 2027 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2760 1250 ugSample 112919 1048 121819 1238 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-12Client Sample ID Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND H 307 406 ugSample 112919 1048 120719 0124 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

615 615 ugSample 112919 1048 120719 0124 111133-Pentafluorobutane ND H

307 443 ugSample 112919 1048 120719 0124 1111-Trichloroethane ND H

615 122 ugSample 112919 1048 120719 0124 1111-Trifluoro-22-dichloroethane ND H

615 615 ugSample 112919 1048 120719 0124 1111-Trifluoroethane ND H

307 590 ugSample 112919 1048 120719 0124 11122-Tetrachloroethane ND H

615 344 ugSample 112919 1048 120719 0124 1112-Trichloro-122-trifluoroethane ND H

615 615 ugSample 112919 1048 120719 0124 1112-trichloro-1-fluoroethane ND H

307 320 ugSample 112919 1048 120719 0124 1112-Trichloroethane ND H

615 307 ugSample 112919 1048 120719 0124 111-Dichloro-1-fluoroethane ND H

615 615 ugSample 112919 1048 120719 0124 111-dichloro-22-difluoroethane ND H

615 615 ugSample 112919 1048 120719 0124 111-dichloro-22-difluoroethene ND H

307 369 ugSample 112919 1048 120719 0124 111-Dichloroethane ND H

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-12Client Sample ID Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

11-Dichloroethene ND H 307 455 ugSample 112919 1048 120719 0124 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

307 332 ugSample 112919 1048 120719 0124 111-Dichloropropene ND H

615 615 ugSample 112919 1048 120719 0124 111-Difluoroethene ND H

615 615 ugSample 112919 1048 120719 0124 1122-trichloro-11-difluoroethane ND H

307 983 ugSample 112919 1048 120719 0124 1123-Trichlorobenzene ND H

307 762 ugSample 112919 1048 120719 0124 1123-Trichloropropane ND H

307 103 ugSample 112919 1048 120719 0124 1124-Trichlorobenzene ND H

307 639 ugSample 112919 1048 120719 0124 1124-Trimethylbenzene ND H

615 108 ugSample 112919 1048 120719 0124 112-Dibromo-3-Chloropropane ND H

307 406 ugSample 112919 1048 120719 0124 112-Dibromoethane (EDB) ND H

615 615 ugSample 112919 1048 120719 0124 112-dichloro-11-difluoroethane ND H

307 541 ugSample 112919 1048 120719 0124 112-Dichlorobenzene ND H

307 516 ugSample 112919 1048 120719 0124 112-Dichloroethane ND H

307 307 ugSample 112919 1048 120719 0124 112-Dichloropropane ND H

307 639 ugSample 112919 1048 120719 0124 1135-Trimethylbenzene ND H

307 529 ugSample 112919 1048 120719 0124 113-Dichlorobenzene ND H

307 344 ugSample 112919 1048 120719 0124 113-Dichloropropane ND H

307 615 ugSample 112919 1048 120719 0124 114-Dichlorobenzene ND H

615 627 ugSample 112919 1048 120719 0124 11-Chloro-11-difluoroethane ND H

615 615 ugSample 112919 1048 120719 0124 122-dichloro-11-difluoroethylmethyl

ether

ND H

307 897 ugSample 112919 1048 120719 0124 122-Dichloropropane ND H

123 197 ugSample 112919 1048 120719 0124 12-Butanone (MEK) ND H

615 910 ugSample 112919 1048 120719 0124 12-chloro-111444-hexafluoro-2-but

ene

ND H

615 615 ugSample 112919 1048 120719 0124 12-Chloro-111-Trifluoroethane ND H

307 578 ugSample 112919 1048 120719 0124 12-Chlorotoluene ND H

123 283 ugSample 112919 1048 120719 0124 12-Hexanone ND H

268 268 ugSample 112919 1048 120719 0124 12-MTP as HFPO 583 H

307 639 ugSample 112919 1048 120719 0124 14-Chlorotoluene ND H

307 824 ugSample 112919 1048 120719 0124 14-Isopropyltoluene ND H

123 197 ugSample 112919 1048 120719 0124 14-Methyl-2-pentanone (MIBK) ND H

123 725 ugSample 112919 1048 120719 0124 1Acetone ND H

307 590 ugSample 112919 1048 120719 0124 1Benzene ND H

307 430 ugSample 112919 1048 120719 0124 1Bromobenzene ND H

307 688 ugSample 112919 1048 120719 0124 1Bromochloromethane ND H

307 529 ugSample 112919 1048 120719 0124 1Bromodichloromethane ND H

307 934 ugSample 112919 1048 120719 0124 1Bromoform ND H

615 356 ugSample 112919 1048 120719 0124 1Bromomethane ND H

307 762 ugSample 112919 1048 120719 0124 1Carbon disulfide ND H

307 406 ugSample 112919 1048 120719 0124 1Carbon tetrachloride ND H

901 901 ugSample 112919 1048 120719 0124 1Carbonyl Difluoride ND H

307 443 ugSample 112919 1048 120719 0124 1Chlorobenzene ND H

307 664 ugSample 112919 1048 120719 0124 1Chlorodibromomethane ND H

615 135 ugSample 112919 1048 120719 0124 1Chloroethane ND H

307 356 ugSample 112919 1048 120719 0124 1Chloroform ND H

615 256 ugSample 112919 1048 120719 0124 1Chloromethane ND H

307 246 ugSample 112919 1048 120719 0124 1cis-12-Dichloroethene ND H

Eurofins TestAmerica Knoxville

12232019Page 41 of 89492

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-12Client Sample ID Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

cis-13-Dichloropropene ND H 307 529 ugSample 112919 1048 120719 0124 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

307 295 ugSample 112919 1048 120719 0124 1Dibromomethane ND H

615 108 ugSample 112919 1048 120719 0124 1Dichlorodifluoromethane ND H

307 504 ugSample 112919 1048 120719 0124 1Ethylbenzene ND H

307 307 ugSample 112919 1048 120719 0124 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND H

307 811 ugSample 112919 1048 120719 0124 1Hexachlorobutadiene ND H

294 294 ugSample 112919 1048 120719 0124 1HFPO dimer methyl ester as

HFPO-DA

ND H

307 430 ugSample 112919 1048 120719 0124 1Isopropylbenzene ND H

615 504 ugSample 112919 1048 120719 0124 1mp-Xylene ND H

307 197 ugSample 112919 1048 120719 0124 1Methylene Chloride ND H

307 148 ugSample 112919 1048 120719 0124 1Naphthalene ND H

307 787 ugSample 112919 1048 120719 0124 1n-Butylbenzene ND H

307 664 ugSample 112919 1048 120719 0124 1n-Propylbenzene ND H

307 320 ugSample 112919 1048 120719 0124 1o-Xylene ND H

307 602 ugSample 112919 1048 120719 0124 1sec-Butylbenzene ND H

307 664 ugSample 112919 1048 120719 0124 1Styrene ND H

307 541 ugSample 112919 1048 120719 0124 1tert-Butylbenzene ND H

307 406 ugSample 112919 1048 120719 0124 1Tetrachloroethene ND H

307 565 ugSample 112919 1048 120719 0124 1Toluene ND H

307 320 ugSample 112919 1048 120719 0124 1trans-12-Dichloroethene ND H

307 108 ugSample 112919 1048 120719 0124 1trans-13-Dichloropropene ND H

307 221 ugSample 112919 1048 120719 0124 1Trichloroethene ND H

615 590 ugSample 112919 1048 120719 0124 1Trichlorofluoromethane ND H

615 148 ugSample 112919 1048 120719 0124 1Vinyl chloride ND H

Propene hexafluoro- 333 T H J N ugSample 113 116-15-4 112919 1048 120719 0124 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120719 0124112919 1048T H JUnknown 498 ugSample 118

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1048 120719 0124 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 112919 1048 120719 0124 157 - 152

Dibromofluoromethane (Surr) 104 112919 1048 120719 0124 162 - 134

Toluene-d8 (Surr) 96 112919 1048 120719 0124 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 28100 6560 3280 ugSample 112919 1048 121319 2047 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2700 1230 ugSample 112919 1048 121819 1259 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Eurofins TestAmerica Knoxville

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Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17461-1ProjectSite VEN Stack - MM-18

Method 8260B - Volatile Organic Compounds (GCMS)Prep MeOH Prep

2501112-Tetrachloroethane ugSample

Analyte UnitsMDLRL

0330

50011133-Pentafluorobutane ugSample0500

250111-Trichloroethane ugSample0360

500111-Trifluoro-22-dichloroethane ugSample0990

500111-Trifluoroethane ugSample0500

2501122-Tetrachloroethane ugSample0480

500112-Trichloro-122-trifluoroethane ugSample0280

500112-trichloro-1-fluoroethane ugSample0500

250112-Trichloroethane ugSample0260

50011-Dichloro-1-fluoroethane ugSample250

50011-dichloro-22-difluoroethane ugSample0500

50011-dichloro-22-difluoroethene ugSample0500

25011-Dichloroethane ugSample0300

25011-Dichloroethene ugSample0370

25011-Dichloropropene ugSample0270

50011-Difluoroethene ugSample500

500122-trichloro-11-difluoroethane ugSample0500

250123-Trichlorobenzene ugSample0800

250123-Trichloropropane ugSample0620

250124-Trichlorobenzene ugSample0840

250124-Trimethylbenzene ugSample0520

50012-Dibromo-3-Chloropropane ugSample0880

25012-Dibromoethane (EDB) ugSample0330

50012-dichloro-11-difluoroethane ugSample0500

25012-Dichlorobenzene ugSample0440

25012-Dichloroethane ugSample0420

25012-Dichloropropane ugSample0250

250135-Trimethylbenzene ugSample0520

25013-Dichlorobenzene ugSample0430

25013-Dichloropropane ugSample0280

25014-Dichlorobenzene ugSample0500

5001-Chloro-11-difluoroethane ugSample0510

50022-dichloro-11-difluoroethylmethyl ether ugSample0500

25022-Dichloropropane ugSample0730

1002-Butanone (MEK) ugSample160

5002-chloro-111444-hexafluoro-2-butene ugSample0740

5002-Chloro-111-Trifluoroethane ugSample0500

2502-Chlorotoluene ugSample0470

1002-Hexanone ugSample230

2502-MTP as HFPO ugSample250

2504-Chlorotoluene ugSample0520

2504-Isopropyltoluene ugSample0670

1004-Methyl-2-pentanone (MIBK) ugSample160

100Acetone ugSample590

250Benzene ugSample0480

250Bromobenzene ugSample0350

250Bromochloromethane ugSample0560

250Bromodichloromethane ugSample0430

250Bromoform ugSample0760

500Bromomethane ugSample290

250Carbon disulfide ugSample0620

250Carbon tetrachloride ugSample0330

Eurofins TestAmerica Knoxville

12232019Page 43 of 89494

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17461-1ProjectSite VEN Stack - MM-18

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)Prep MeOH Prep

100Carbonyl Difluoride ugSample

Analyte UnitsMDLRL

100

250Chlorobenzene ugSample0360

250Chlorodibromomethane ugSample0540

500Chloroethane ugSample110

250Chloroform ugSample0290

500Chloromethane ugSample208

250cis-12-Dichloroethene ugSample0200

250cis-13-Dichloropropene ugSample0430

250Dibromomethane ugSample0240

500Dichlorodifluoromethane ugSample0880

250Ethylbenzene ugSample0410

250Heptafluoropropyl 1222-tetrafluoroethyl ether ugSample250

250Hexachlorobutadiene ugSample0660

250HFPO dimer methyl ester as HFPO-DA ugSample250

250Isopropylbenzene ugSample0350

500mp-Xylene ugSample0410

250Methylene Chloride ugSample160

250Naphthalene ugSample120

250n-Butylbenzene ugSample0640

250n-Propylbenzene ugSample0540

250o-Xylene ugSample0260

250sec-Butylbenzene ugSample0490

250Styrene ugSample0540

250tert-Butylbenzene ugSample0440

250Tetrachloroethene ugSample0330

250Toluene ugSample0460

250trans-12-Dichloroethene ugSample0260

250trans-13-Dichloropropene ugSample0880

250Trichloroethene ugSample0180

500Trichlorofluoromethane ugSample0480

500Vinyl chloride ugSample120

Method 9056 - Anions Ion ChromatographyPrep MeOH Prep

110Hydrogen Fluoride ugSample

Analyte UnitsMDLRL

500

1000Total Fluorine ugSample500

Eurofins TestAmerica Knoxville

12232019Page 44 of 89495

ANALYTICAL REPORTJob Number 140-17557-1

Job Description VEN Stack - MM-18

Contract Number LBIO-67048

ForChemours Company FC LLC The

co AECOMSabre Building Suite 300

4051 Ogletown RoadNewark DE 19713

Attention Michael Aucoin

_____________________________________________

Approved for releaseCourtney M AdkinsProject Manager II12302019 639 AM

Courtney M Adkins Project Manager II5815 Middlebrook Pike Knoxville TN 37921

(865)291-3000 courtneyadkinstestamericainccom

12302019

This report may not be reproduced except in full and with written approval from the laboratory For questions please contact the Project Manager atthe e-mail address or telephone number listed on this page

The test results in this report relate only to the samples as received by the laboratory and will meet all requirements of the methodology with anyexceptions noted This report shall not be reproduced except in full without the express written approval of the laboratory All questions should bedirected to the Eurofins TestAmerica Project Manager

This report has been electronically signed and authorized by the signatory Electronic signature is intended to be the legally binding equivalent of atraditionally handwritten signature

Eurofins TestAmerica Knoxville

5815 Middlebrook Pike Knoxville TN 37921

Tel (865) 291-3000 Fax (865) 584-4315 wwwtestamericainccom

12302019Page 1 of 70696

Table of ContentsCover Title Page 1

Data Summaries 5

Definitions 5

Method Summary 6

Sample Summary 7

Case Narrative 8

QC Association 10

Client Sample Results 13

Default Detection Limits 28

Surrogate Summary 30

QC Sample Results 31

Chronicle 38

Certification Summary 44

Manual Integration Summary 45

Organic Sample Data 55

GCMS VOA 55

Method 8260B 55Method 8260B QC Summary 56Method 8260B Sample Data 71Standards Data 188

Method 8260B ICAL Data 188Method 8260B CCAL Data 290

Raw QC Data 362Method 8260B Tune Data 362Method 8260B Blank Data 382Method 8260B LCSLCSD Data 391

12302019Page 2 of 70697

Table of ContentsMethod 8260B MSMSD Data 403

Method 8260B Run Logs 411Method 8260B Prep Data 428

HPLCIC 431

Method 9056 431Method 9056 QC Summary 432Method 9056 Sample Data 437Standards Data 455

Method 9056 ICAL Data 455Method 9056 CCAL Data 482

Raw QC Data 511Method 9056 Blank Data 511Method 9056 LCSLCSD Data 532Method 9056 MSMSD Data 538

Method 9056 Run Logs 544Method 9056 Prep Data 549

Method 9056A Total Halogens 552Method 9056A Total Halogens QC Summary 553Method 9056A Total Halogens Sample Data 558Standards Data 576

Method 9056A Total Halogens ICAL Data 576Method 9056A Total Halogens CCAL Data 601

Raw QC Data 629Method 9056A Total Halogens Blank Data 629Method 9056A Total Halogens LCSLCSD Data 654Method 9056A Total Halogens MSMSD Data 660

12302019Page 3 of 70698

Table of ContentsMethod 9056A Total Halogens Run Logs 666Method 9056A Total Halogens Prep Data 680

Inorganic Sample Data 685

General Chemistry Data 685

Gen Chem Cover Page 686

Gen Chem Sample Data 687

Gen Chem QC Data 693Gen Chem ICVCCV 693Gen Chem Duplicates 694

Gen Chem MDL 695

Gen Chem Analysis Run Log 696

Gen Chem Prep Data 697

Gen Chem Raw Data 698

Shipping and Receiving Documents 699

Client Chain of Custody 700

12302019Page 4 of 70699

DefinitionsGlossaryJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Qualifiers

GCMS VOAQualifier Description

LCS or LCSD is outside acceptance limits

Qualifier

4 MS MSD The analyte present in the original sample is greater than 4 times the matrix spike concentration therefore control limits are not

applicableE Result exceeded calibration range

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

GCMS VOA TICsQualifier Description

J Indicates an Estimated Value for TICs

Qualifier

N Presumptive evidence of material

T Result is a tentatively identified compound (TIC) and an estimated value

HPLCICQualifier Description

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

Qualifier

General ChemistryQualifier Description

HF Field parameter with a holding time of 15 minutes Test performed by laboratory at clients request

Qualifier

GlossaryThese commonly used abbreviations may or may not be present in this report

curren Listed under the D column to designate that the result is reported on a dry weight basis

Abbreviation

R Percent Recovery

CFL Contains Free Liquid

CNF Contains No Free Liquid

DER Duplicate Error Ratio (normalized absolute difference)

Dil Fac Dilution Factor

DL Detection Limit (DoDDOE)

DL RA RE IN Indicates a Dilution Re-analysis Re-extraction or additional Initial metalsanion analysis of the sample

DLC Decision Level Concentration (Radiochemistry)

EDL Estimated Detection Limit (Dioxin)

LOD Limit of Detection (DoDDOE)

LOQ Limit of Quantitation (DoDDOE)

MDA Minimum Detectable Activity (Radiochemistry)

MDC Minimum Detectable Concentration (Radiochemistry)

MDL Method Detection Limit

ML Minimum Level (Dioxin)

NC Not Calculated

ND Not Detected at the reporting limit (or MDL or EDL if shown)

PQL Practical Quantitation Limit

QC Quality Control

RER Relative Error Ratio (Radiochemistry)

RL Reporting Limit or Requested Limit (Radiochemistry)

RPD Relative Percent Difference a measure of the relative difference between two points

TEF Toxicity Equivalent Factor (Dioxin)

TEQ Toxicity Equivalent Quotient (Dioxin)

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12302019Page 5 of 706100

Method SummaryJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Method Method Description LaboratoryProtocol

SW8468260B Volatile Organic Compounds (GCMS) TAL KNX

SW8469056 Anions Ion Chromatography TAL KNX

SW8469041A pH TAL KNX

SW8465050 Bomb Preparation Method for Solid Waste TAL KNX

NoneMeOH Prep Methanol Impinger Preparation TAL KNX

Protocol References

None = None

SW846 = Test Methods For Evaluating Solid Waste PhysicalChemical Methods Third Edition November 1986 And Its Updates

Laboratory References

TAL KNX = Eurofins TestAmerica Knoxville 5815 Middlebrook Pike Knoxville TN 37921 TEL (865)291-3000

Eurofins TestAmerica Knoxville

12302019Page 6 of 706101

Sample SummaryJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID Client Sample ID ReceivedCollectedMatrix Asset ID

140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 Air 120419 0000 120719 0800

140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 Air 120419 0000 120719 0800

140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 Air 120419 0000 120719 0800

140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 Air 120419 0000 120719 0800

140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 Air 120419 0000 120719 0800

140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 Air 120419 0000 120719 0800

Eurofins TestAmerica Knoxville

12302019Page 7 of 706102

Job Narrative140-17557-1

Receipt The samples were received on December 7 2019 at 800 AM the samples arrived in good condition properly preserved and where required on ice The temperatures of the 2 coolers at receipt time were 09ordm C and 14ordm C

GCMS VOA Impinger Sample Preparation and Analysis Impinger samples were analyzed for the volatile organic target analytes by purge and trap GCMS using Eurofins TestAmerica Knoxville standard operating procedure KNOX-MS-0015 based on the following method

middot SW-846 8260B ldquoVolatile Organic Compounds by Gas Chromatography Mass Spectrometry (GCMS)rdquo

Each sample is prepared by adding a known amount of sample to the purge water in a purge and trap vessel and spiking with internal standards surrogates and matrix spike analytes (as needed) Volatile compounds are introduced into the gas chromatograph by the purge and trap method The components are separated using the chromatograph and detected using a mass spectrometer which provides both qualitative and quantitative information

Impinger sample results were calculated using the following equation

Concentration μgsample = (C times DF times W times Vt) (Va)WhereC = On-column concentration μgLDF = Dilution factorW = Volume of water purged LVt = Methanol extract final volume μL Va = Volume of extract analyzed microL

Method 8260B (LCS 140-359561-A) for analytical batch 140-35964 recovered below marginal exceedance limits for Trichlorofluoromethane This is an ongoing instrument issue with LCS recoveries for this analyte The project manager approved moving forward with analysis for the current job

Method 8260B The following samples were diluted to bring the concentration of target analytes within the calibration range Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 (140-17557-1) Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 (140-17557-2) Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 (140-17557-3) Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 (140-17557-4) Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 (140-17557-5) and Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 (140-17557-6) Elevated reporting limits (RLs) are provided

Method 8260B The continuing calibration verification (CCV) associated with batch 140-35990 recovered above the upper control limit for Chloroethane The samples associated with this CCV were non-detects for the affected analytes therefore the data have been reported

No additional analytical or quality issues were noted other than those described above or in the DefinitionsGlossary page

General Chemistry Total Halogens The samples were prepared for total fluorine chlorine bromine andor iodine using SOP number KNOX-WC-0016 (based on ASTM Method E442 and SW-846 Method 5050) The sample is oxidized by combustion in an oxygen flask at atmospheric pressure or a bomb containing oxygen under pressure The liberated halogen compounds are absorbed primarily as halides in a sodium carbonatesodium bicarbonate buffer solution The combustion products are collected by repeated rinsing of the combustion apparatus and analyzed by ion chromatography in accordance with SOP KNOX-WC-0005 (based on SW-846 Method 9056) The results are calculated using the following equation

C = [(Ccom times Vcom) W] times 1000 gKg

WhereC = Concentration of analyte in the sample mgKgCcom = Concentration of analyte in the combustate mgLVcom = Total volume of combustate LW = Weight of sample combusted g

Anions in Impinger Solutions Anions are is determined in accordance to SOP KNOX-WC-0005 (based on methods 3000A and 9056) The samples were diluted a minimum of 120 in ion chromatography solvent buffer solution to reduce the methanol concentration before injection Buffer concentrate was added until the pH was 10 Samples are diluted with ion chromatography eluate solution to bring the

12302019Page 8 of 706103

concentrations within the calibration range when necessary Higher dilutions are applied as necessary

An aliquot of prepared sample is introduced into the ion chromatograph Anions are identified based on their retention times as compared to those of known standards Quantification is accomplished by measuring the peak response and comparing it to a calibration curve generated from known standards

The pH of all samples were tested with pH paper QC consisted of initial CCV and LCS which also serve as initial calibration duplicate analysis for every 10 samples and closing CCV A certified thermometer was used to check the ambient temperature

No additional analytical or quality issues were noted other than those described above or in the DefinitionsGlossary page

12302019Page 9 of 706104

QC Association SummaryJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

GCMS VOA

Prep Batch 35956

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air MeOH Prep140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17557-2 - DL Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17557-3 - DL Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air MeOH Prep140-17557-4 - DL Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air MeOH Prep140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air MeOH Prep140-17557-6 - DL Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH Prep140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH PrepMB 140-359562-A Method Blank TotalNA

Air MeOH PrepLCS 140-359561-A Lab Control Sample TotalNA

Air MeOH Prep140-17557-2 MS Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17557-2 MSD Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Analysis Batch 35964

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8260B 35956140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 8260B 35956140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 8260B 35956140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 8260B 35956140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 8260B 35956140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 8260B 35956140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 8260B 35956MB 140-359562-A Method Blank TotalNA

Air 8260B 35956LCS 140-359561-A Lab Control Sample TotalNA

Air 8260B 35956LCS 140-359561-A Lab Control Sample TotalNA

Analysis Batch 35990

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8260B 35956140-17557-2 - DL Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 8260B 35956140-17557-3 - DL Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 8260B 35956140-17557-4 - DL Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 8260B 35956140-17557-6 - DL Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 8260B 35956140-17557-2 MS Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 8260B 35956140-17557-2 MSD Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

HPLCIC

Prep Batch 35956

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air MeOH Prep140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air MeOH Prep140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air MeOH Prep140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH PrepMB 140-3595619-A Method Blank TotalNA

Air MeOH PrepMB 140-3595619-B Method Blank TotalNA

Air MeOH PrepLCS 140-3595620-A Lab Control Sample TotalNA

Air MeOH PrepLCS 140-3595620-B Lab Control Sample TotalNA

Air MeOH PrepLCSD 140-3595621-A Lab Control Sample Dup TotalNA

Eurofins TestAmerica Knoxville

12302019Page 10 of 706105

QC Association SummaryJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

HPLCIC (Continued)

Prep Batch 35956 (Continued)

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH PrepLCSD 140-3595621-B Lab Control Sample Dup TotalNA

Air MeOH Prep140-17557-2 MS Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17557-2 MSD Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Prep Batch 35976

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 5050 35956140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 5050 35956140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 5050 35956140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 5050 35956140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 5050 35956140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 5050 35956140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 5050 35956MB 140-3595619-B Method Blank TotalNA

Air 5050 35956LCS 140-3595620-B Lab Control Sample TotalNA

Air 5050 35956LCSD 140-3595621-B Lab Control Sample Dup TotalNA

Air 5050 35956140-17557-2 MS Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 5050 35956140-17557-2 MSD Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Analysis Batch 36294

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35976140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9056 35976140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35976140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9056 35976140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9056 35976140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9056 35976140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9056 35976MB 140-3595619-B Method Blank TotalNA

Air 9056 35976LCS 140-3595620-B Lab Control Sample TotalNA

Air 9056 35976LCSD 140-3595621-B Lab Control Sample Dup TotalNA

Air 9056 35976140-17557-2 MS Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35976140-17557-2 MSD Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Analysis Batch 36325

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35956140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9056 35956140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35956140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9056 35956140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9056 35956140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9056 35956140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9056 35956MB 140-3595619-A Method Blank TotalNA

Air 9056 35956LCS 140-3595620-A Lab Control Sample TotalNA

Air 9056 35956LCSD 140-3595621-A Lab Control Sample Dup TotalNA

Air 9056 35956140-17557-2 MS Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35956140-17557-2 MSD Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

General Chemistry

Analysis Batch 36156

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9041A140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Eurofins TestAmerica Knoxville

12302019Page 11 of 706106

QC Association SummaryJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

General Chemistry (Continued)

Analysis Batch 36156 (Continued)

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9041A140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9041A140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9041A140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9041A140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9041A140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9041ALCS 140-361562 Lab Control Sample TotalNA

Air 9041A140-17557-1 DU Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Eurofins TestAmerica Knoxville

12302019Page 12 of 706107

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-1Client Sample ID Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 315 415 ugSample 121019 0947 121019 2258 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

629 629 ugSample 121019 0947 121019 2258 111133-Pentafluorobutane ND

315 453 ugSample 121019 0947 121019 2258 1111-Trichloroethane ND

629 125 ugSample 121019 0947 121019 2258 1111-Trifluoro-22-dichloroethane ND

629 629 ugSample 121019 0947 121019 2258 1111-Trifluoroethane ND

315 604 ugSample 121019 0947 121019 2258 11122-Tetrachloroethane ND

629 352 ugSample 121019 0947 121019 2258 1112-Trichloro-122-trifluoroethane ND

629 629 ugSample 121019 0947 121019 2258 1112-trichloro-1-fluoroethane ND

315 327 ugSample 121019 0947 121019 2258 1112-Trichloroethane ND

629 315 ugSample 121019 0947 121019 2258 111-Dichloro-1-fluoroethane ND

629 629 ugSample 121019 0947 121019 2258 111-dichloro-22-difluoroethane ND

629 629 ugSample 121019 0947 121019 2258 111-dichloro-22-difluoroethene ND

315 378 ugSample 121019 0947 121019 2258 111-Dichloroethane ND

315 466 ugSample 121019 0947 121019 2258 111-Dichloroethene ND

315 340 ugSample 121019 0947 121019 2258 111-Dichloropropene ND

629 629 ugSample 121019 0947 121019 2258 111-Difluoroethene ND

629 629 ugSample 121019 0947 121019 2258 1122-trichloro-11-difluoroethane ND

315 101 ugSample 121019 0947 121019 2258 1123-Trichlorobenzene ND

315 780 ugSample 121019 0947 121019 2258 1123-Trichloropropane ND

315 106 ugSample 121019 0947 121019 2258 1124-Trichlorobenzene ND

315 654 ugSample 121019 0947 121019 2258 1124-Trimethylbenzene ND

629 111 ugSample 121019 0947 121019 2258 112-Dibromo-3-Chloropropane ND

315 415 ugSample 121019 0947 121019 2258 112-Dibromoethane (EDB) ND

629 629 ugSample 121019 0947 121019 2258 112-dichloro-11-difluoroethane ND

315 554 ugSample 121019 0947 121019 2258 112-Dichlorobenzene ND

315 529 ugSample 121019 0947 121019 2258 112-Dichloroethane ND

315 315 ugSample 121019 0947 121019 2258 112-Dichloropropane ND

315 654 ugSample 121019 0947 121019 2258 1135-Trimethylbenzene ND

315 541 ugSample 121019 0947 121019 2258 113-Dichlorobenzene ND

315 352 ugSample 121019 0947 121019 2258 113-Dichloropropane ND

315 629 ugSample 121019 0947 121019 2258 114-Dichlorobenzene ND

629 642 ugSample 121019 0947 121019 2258 11-Chloro-11-difluoroethane ND

629 629 ugSample 121019 0947 121019 2258 122-dichloro-11-difluoroethylmethyl

ether

ND

315 919 ugSample 121019 0947 121019 2258 122-Dichloropropane ND

126 201 ugSample 121019 0947 121019 2258 12-Butanone (MEK) ND

629 931 ugSample 121019 0947 121019 2258 12-chloro-111444-hexafluoro-2-but

ene

ND

629 629 ugSample 121019 0947 121019 2258 12-Chloro-111-Trifluoroethane ND

315 592 ugSample 121019 0947 121019 2258 12-Chlorotoluene ND

126 289 ugSample 121019 0947 121019 2258 12-Hexanone ND

275 275 ugSample 121019 0947 121019 2258 12-MTP as HFPO 1460

315 654 ugSample 121019 0947 121019 2258 14-Chlorotoluene ND

315 843 ugSample 121019 0947 121019 2258 14-Isopropyltoluene ND

126 201 ugSample 121019 0947 121019 2258 14-Methyl-2-pentanone (MIBK) ND

126 743 ugSample 121019 0947 121019 2258 1Acetone ND

315 604 ugSample 121019 0947 121019 2258 1Benzene ND

315 441 ugSample 121019 0947 121019 2258 1Bromobenzene ND

Eurofins TestAmerica Knoxville

12302019Page 13 of 706108

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-1Client Sample ID Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromochloromethane ND 315 705 ugSample 121019 0947 121019 2258 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

315 541 ugSample 121019 0947 121019 2258 1Bromodichloromethane ND

315 957 ugSample 121019 0947 121019 2258 1Bromoform ND

629 365 ugSample 121019 0947 121019 2258 1Bromomethane ND

315 780 ugSample 121019 0947 121019 2258 1Carbon disulfide ND

315 415 ugSample 121019 0947 121019 2258 1Carbon tetrachloride ND

923 923 ugSample 121019 0947 121019 2258 1Carbonyl Difluoride ND

315 453 ugSample 121019 0947 121019 2258 1Chlorobenzene ND

315 680 ugSample 121019 0947 121019 2258 1Chlorodibromomethane ND

629 138 ugSample 121019 0947 121019 2258 1Chloroethane ND

315 365 ugSample 121019 0947 121019 2258 1Chloroform ND

629 262 ugSample 121019 0947 121019 2258 1Chloromethane ND

315 252 ugSample 121019 0947 121019 2258 1cis-12-Dichloroethene ND

315 541 ugSample 121019 0947 121019 2258 1cis-13-Dichloropropene ND

315 302 ugSample 121019 0947 121019 2258 1Dibromomethane ND

629 111 ugSample 121019 0947 121019 2258 1Dichlorodifluoromethane ND

315 516 ugSample 121019 0947 121019 2258 1Ethylbenzene ND

315 315 ugSample 121019 0947 121019 2258 1Heptafluoropropyl 1222-tetrafluoroethyl ether

149

315 831 ugSample 121019 0947 121019 2258 1Hexachlorobutadiene ND

302 302 ugSample 121019 0947 121019 2258 1HFPO dimer methyl ester as

HFPO-DA

ND

315 441 ugSample 121019 0947 121019 2258 1Isopropylbenzene ND

629 516 ugSample 121019 0947 121019 2258 1mp-Xylene ND

315 201 ugSample 121019 0947 121019 2258 1Methylene Chloride 373

315 151 ugSample 121019 0947 121019 2258 1Naphthalene ND

315 806 ugSample 121019 0947 121019 2258 1n-Butylbenzene ND

315 680 ugSample 121019 0947 121019 2258 1n-Propylbenzene ND

315 327 ugSample 121019 0947 121019 2258 1o-Xylene ND

315 617 ugSample 121019 0947 121019 2258 1sec-Butylbenzene ND

315 680 ugSample 121019 0947 121019 2258 1Styrene ND

315 554 ugSample 121019 0947 121019 2258 1tert-Butylbenzene ND

315 415 ugSample 121019 0947 121019 2258 1Tetrachloroethene ND

315 579 ugSample 121019 0947 121019 2258 1Toluene ND

315 327 ugSample 121019 0947 121019 2258 1trans-12-Dichloroethene ND

315 111 ugSample 121019 0947 121019 2258 1trans-13-Dichloropropene ND

315 227 ugSample 121019 0947 121019 2258 1Trichloroethene ND

629 604 ugSample 121019 0947 121019 2258 1Trichlorofluoromethane ND

629 151 ugSample 121019 0947 121019 2258 1Vinyl chloride ND

Unknown 318 T J ugSample 113 121019 0947 121019 2258 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1121019 2258121019 0947T JUnknown 626 ugSample 118

12-Dichloroethane-d4 (Surr) 121 70 - 160 121019 0947 121019 2258 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 106 121019 0947 121019 2258 157 - 152

Dibromofluoromethane (Surr) 109 121019 0947 121019 2258 162 - 134

Eurofins TestAmerica Knoxville

12302019Page 14 of 706109

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-1Client Sample ID Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)

Toluene-d8 (Surr) 89 71 - 139 121019 0947 121019 2258 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 98200 13400 6710 ugSample 121019 0947 122319 1201 2

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2770 1260 ugSample 121019 0947 122419 0117 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 40 HF SU 121719 1337 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17557-2Client Sample ID Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 305 402 ugSample 121019 0947 121019 2234 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

610 610 ugSample 121019 0947 121019 2234 111133-Pentafluorobutane ND

305 439 ugSample 121019 0947 121019 2234 1111-Trichloroethane ND

610 121 ugSample 121019 0947 121019 2234 1111-Trifluoro-22-dichloroethane ND

610 610 ugSample 121019 0947 121019 2234 1111-Trifluoroethane ND

305 585 ugSample 121019 0947 121019 2234 11122-Tetrachloroethane ND

610 341 ugSample 121019 0947 121019 2234 1112-Trichloro-122-trifluoroethane ND

610 610 ugSample 121019 0947 121019 2234 1112-trichloro-1-fluoroethane ND

305 317 ugSample 121019 0947 121019 2234 1112-Trichloroethane ND

610 305 ugSample 121019 0947 121019 2234 111-Dichloro-1-fluoroethane ND

610 610 ugSample 121019 0947 121019 2234 111-dichloro-22-difluoroethane ND

610 610 ugSample 121019 0947 121019 2234 111-dichloro-22-difluoroethene ND

305 366 ugSample 121019 0947 121019 2234 111-Dichloroethane ND

305 451 ugSample 121019 0947 121019 2234 111-Dichloroethene ND

305 329 ugSample 121019 0947 121019 2234 111-Dichloropropene ND

610 610 ugSample 121019 0947 121019 2234 111-Difluoroethene ND

610 610 ugSample 121019 0947 121019 2234 1122-trichloro-11-difluoroethane ND

305 976 ugSample 121019 0947 121019 2234 1123-Trichlorobenzene ND

305 756 ugSample 121019 0947 121019 2234 1123-Trichloropropane ND

305 102 ugSample 121019 0947 121019 2234 1124-Trichlorobenzene ND

305 634 ugSample 121019 0947 121019 2234 1124-Trimethylbenzene ND

610 107 ugSample 121019 0947 121019 2234 112-Dibromo-3-Chloropropane ND

305 402 ugSample 121019 0947 121019 2234 112-Dibromoethane (EDB) ND

610 610 ugSample 121019 0947 121019 2234 112-dichloro-11-difluoroethane ND

305 537 ugSample 121019 0947 121019 2234 112-Dichlorobenzene ND

305 512 ugSample 121019 0947 121019 2234 112-Dichloroethane ND

305 305 ugSample 121019 0947 121019 2234 112-Dichloropropane ND

305 634 ugSample 121019 0947 121019 2234 1135-Trimethylbenzene ND

Eurofins TestAmerica Knoxville

12302019Page 15 of 706110

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-2Client Sample ID Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

13-Dichlorobenzene ND 305 524 ugSample 121019 0947 121019 2234 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

305 341 ugSample 121019 0947 121019 2234 113-Dichloropropane ND

305 610 ugSample 121019 0947 121019 2234 114-Dichlorobenzene ND

610 622 ugSample 121019 0947 121019 2234 11-Chloro-11-difluoroethane ND

610 610 ugSample 121019 0947 121019 2234 122-dichloro-11-difluoroethylmethyl

ether

ND

305 890 ugSample 121019 0947 121019 2234 122-Dichloropropane ND

122 195 ugSample 121019 0947 121019 2234 12-Butanone (MEK) ND

610 903 ugSample 121019 0947 121019 2234 12-chloro-111444-hexafluoro-2-but

ene

ND

610 610 ugSample 121019 0947 121019 2234 12-Chloro-111-Trifluoroethane ND

305 573 ugSample 121019 0947 121019 2234 12-Chlorotoluene ND

122 281 ugSample 121019 0947 121019 2234 12-Hexanone ND

266 266 ugSample 121019 0947 121019 2234 12-MTP as HFPO 2430 E

305 634 ugSample 121019 0947 121019 2234 14-Chlorotoluene ND

305 817 ugSample 121019 0947 121019 2234 14-Isopropyltoluene ND

122 195 ugSample 121019 0947 121019 2234 14-Methyl-2-pentanone (MIBK) ND

122 720 ugSample 121019 0947 121019 2234 1Acetone ND

305 585 ugSample 121019 0947 121019 2234 1Benzene ND

305 427 ugSample 121019 0947 121019 2234 1Bromobenzene ND

305 683 ugSample 121019 0947 121019 2234 1Bromochloromethane ND

305 524 ugSample 121019 0947 121019 2234 1Bromodichloromethane ND

305 927 ugSample 121019 0947 121019 2234 1Bromoform ND

610 354 ugSample 121019 0947 121019 2234 1Bromomethane ND

305 756 ugSample 121019 0947 121019 2234 1Carbon disulfide ND

305 402 ugSample 121019 0947 121019 2234 1Carbon tetrachloride ND

894 894 ugSample 121019 0947 121019 2234 1Carbonyl Difluoride ND

305 439 ugSample 121019 0947 121019 2234 1Chlorobenzene ND

305 659 ugSample 121019 0947 121019 2234 1Chlorodibromomethane ND

610 134 ugSample 121019 0947 121019 2234 1Chloroethane ND

305 354 ugSample 121019 0947 121019 2234 1Chloroform ND

610 254 ugSample 121019 0947 121019 2234 1Chloromethane ND

305 244 ugSample 121019 0947 121019 2234 1cis-12-Dichloroethene ND

305 524 ugSample 121019 0947 121019 2234 1cis-13-Dichloropropene ND

305 293 ugSample 121019 0947 121019 2234 1Dibromomethane ND

610 107 ugSample 121019 0947 121019 2234 1Dichlorodifluoromethane ND

305 500 ugSample 121019 0947 121019 2234 1Ethylbenzene ND

305 305 ugSample 121019 0947 121019 2234 1Heptafluoropropyl 1222-tetrafluoroethyl ether

953

305 805 ugSample 121019 0947 121019 2234 1Hexachlorobutadiene ND

293 293 ugSample 121019 0947 121019 2234 1HFPO dimer methyl ester as

HFPO-DA

ND

305 427 ugSample 121019 0947 121019 2234 1Isopropylbenzene ND

610 500 ugSample 121019 0947 121019 2234 1mp-Xylene ND

305 195 ugSample 121019 0947 121019 2234 1Methylene Chloride 211 J

305 146 ugSample 121019 0947 121019 2234 1Naphthalene ND

305 781 ugSample 121019 0947 121019 2234 1n-Butylbenzene ND

305 659 ugSample 121019 0947 121019 2234 1n-Propylbenzene ND

Eurofins TestAmerica Knoxville

12302019Page 16 of 706111

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-2Client Sample ID Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

o-Xylene ND 305 317 ugSample 121019 0947 121019 2234 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

305 598 ugSample 121019 0947 121019 2234 1sec-Butylbenzene ND

305 659 ugSample 121019 0947 121019 2234 1Styrene ND

305 537 ugSample 121019 0947 121019 2234 1tert-Butylbenzene ND

305 402 ugSample 121019 0947 121019 2234 1Tetrachloroethene ND

305 561 ugSample 121019 0947 121019 2234 1Toluene ND

305 317 ugSample 121019 0947 121019 2234 1trans-12-Dichloroethene ND

305 107 ugSample 121019 0947 121019 2234 1trans-13-Dichloropropene ND

305 220 ugSample 121019 0947 121019 2234 1Trichloroethene ND

610 585 ugSample 121019 0947 121019 2234 1Trichlorofluoromethane ND

610 146 ugSample 121019 0947 121019 2234 1Vinyl chloride ND

Unknown 596 T J ugSample 113 121019 0947 121019 2234 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1121019 2234121019 0947T JUnknown 1110 ugSample 118

1121019 2234121019 0947T JUnknown 351 ugSample 122

12-Dichloroethane-d4 (Surr) 121 70 - 160 121019 0947 121019 2234 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 107 121019 0947 121019 2234 157 - 152

Dibromofluoromethane (Surr) 106 121019 0947 121019 2234 162 - 134

Toluene-d8 (Surr) 89 121019 0947 121019 2234 171 - 139

Method 8260B - Volatile Organic Compounds (GCMS) - DLRL MDL

2-MTP as HFPO 2230 533 533 ugSample 121019 0947 121119 1629 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

12-Dichloroethane-d4 (Surr) 112 70 - 160 121019 0947 121119 1629 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 108 121019 0947 121119 1629 157 - 152

Dibromofluoromethane (Surr) 97 121019 0947 121119 1629 162 - 134

Toluene-d8 (Surr) 96 121019 0947 121119 1629 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 32600 6500 3250 ugSample 121019 0947 121919 2322 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2680 1220 ugSample 121019 0947 122419 0140 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 40 HF SU 121719 1337 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Eurofins TestAmerica Knoxville

12302019Page 17 of 706112

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-3Client Sample ID Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 304 401 ugSample 121019 0947 121019 2209 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

608 608 ugSample 121019 0947 121019 2209 111133-Pentafluorobutane ND

304 438 ugSample 121019 0947 121019 2209 1111-Trichloroethane ND

608 120 ugSample 121019 0947 121019 2209 1111-Trifluoro-22-dichloroethane ND

608 608 ugSample 121019 0947 121019 2209 1111-Trifluoroethane ND

304 583 ugSample 121019 0947 121019 2209 11122-Tetrachloroethane ND

608 340 ugSample 121019 0947 121019 2209 1112-Trichloro-122-trifluoroethane ND

608 608 ugSample 121019 0947 121019 2209 1112-trichloro-1-fluoroethane ND

304 316 ugSample 121019 0947 121019 2209 1112-Trichloroethane ND

608 304 ugSample 121019 0947 121019 2209 111-Dichloro-1-fluoroethane ND

608 608 ugSample 121019 0947 121019 2209 111-dichloro-22-difluoroethane ND

608 608 ugSample 121019 0947 121019 2209 111-dichloro-22-difluoroethene ND

304 365 ugSample 121019 0947 121019 2209 111-Dichloroethane ND

304 450 ugSample 121019 0947 121019 2209 111-Dichloroethene ND

304 328 ugSample 121019 0947 121019 2209 111-Dichloropropene ND

608 608 ugSample 121019 0947 121019 2209 111-Difluoroethene ND

608 608 ugSample 121019 0947 121019 2209 1122-trichloro-11-difluoroethane ND

304 972 ugSample 121019 0947 121019 2209 1123-Trichlorobenzene ND

304 753 ugSample 121019 0947 121019 2209 1123-Trichloropropane ND

304 102 ugSample 121019 0947 121019 2209 1124-Trichlorobenzene ND

304 632 ugSample 121019 0947 121019 2209 1124-Trimethylbenzene ND

608 107 ugSample 121019 0947 121019 2209 112-Dibromo-3-Chloropropane ND

304 401 ugSample 121019 0947 121019 2209 112-Dibromoethane (EDB) ND

608 608 ugSample 121019 0947 121019 2209 112-dichloro-11-difluoroethane ND

304 535 ugSample 121019 0947 121019 2209 112-Dichlorobenzene ND

304 510 ugSample 121019 0947 121019 2209 112-Dichloroethane ND

304 304 ugSample 121019 0947 121019 2209 112-Dichloropropane ND

304 632 ugSample 121019 0947 121019 2209 1135-Trimethylbenzene ND

304 523 ugSample 121019 0947 121019 2209 113-Dichlorobenzene ND

304 340 ugSample 121019 0947 121019 2209 113-Dichloropropane ND

304 608 ugSample 121019 0947 121019 2209 114-Dichlorobenzene ND

608 620 ugSample 121019 0947 121019 2209 11-Chloro-11-difluoroethane ND

608 608 ugSample 121019 0947 121019 2209 122-dichloro-11-difluoroethylmethyl

ether

ND

304 887 ugSample 121019 0947 121019 2209 122-Dichloropropane ND

122 194 ugSample 121019 0947 121019 2209 12-Butanone (MEK) ND

608 899 ugSample 121019 0947 121019 2209 12-chloro-111444-hexafluoro-2-but

ene

ND

608 608 ugSample 121019 0947 121019 2209 12-Chloro-111-Trifluoroethane ND

304 571 ugSample 121019 0947 121019 2209 12-Chlorotoluene ND

122 280 ugSample 121019 0947 121019 2209 12-Hexanone ND

266 266 ugSample 121019 0947 121019 2209 12-MTP as HFPO 2130 E

304 632 ugSample 121019 0947 121019 2209 14-Chlorotoluene ND

304 814 ugSample 121019 0947 121019 2209 14-Isopropyltoluene ND

122 194 ugSample 121019 0947 121019 2209 14-Methyl-2-pentanone (MIBK) ND

122 717 ugSample 121019 0947 121019 2209 1Acetone ND

304 583 ugSample 121019 0947 121019 2209 1Benzene ND

304 425 ugSample 121019 0947 121019 2209 1Bromobenzene ND

Eurofins TestAmerica Knoxville

12302019Page 18 of 706113

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-3Client Sample ID Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromochloromethane ND 304 681 ugSample 121019 0947 121019 2209 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

304 523 ugSample 121019 0947 121019 2209 1Bromodichloromethane ND

304 924 ugSample 121019 0947 121019 2209 1Bromoform ND

608 352 ugSample 121019 0947 121019 2209 1Bromomethane ND

304 753 ugSample 121019 0947 121019 2209 1Carbon disulfide ND

304 401 ugSample 121019 0947 121019 2209 1Carbon tetrachloride ND

894 894 ugSample 121019 0947 121019 2209 1Carbonyl Difluoride ND

304 438 ugSample 121019 0947 121019 2209 1Chlorobenzene ND

304 656 ugSample 121019 0947 121019 2209 1Chlorodibromomethane ND

608 134 ugSample 121019 0947 121019 2209 1Chloroethane ND

304 352 ugSample 121019 0947 121019 2209 1Chloroform ND

608 253 ugSample 121019 0947 121019 2209 1Chloromethane ND

304 243 ugSample 121019 0947 121019 2209 1cis-12-Dichloroethene ND

304 523 ugSample 121019 0947 121019 2209 1cis-13-Dichloropropene ND

304 292 ugSample 121019 0947 121019 2209 1Dibromomethane ND

608 107 ugSample 121019 0947 121019 2209 1Dichlorodifluoromethane ND

304 498 ugSample 121019 0947 121019 2209 1Ethylbenzene ND

304 304 ugSample 121019 0947 121019 2209 1Heptafluoropropyl 1222-tetrafluoroethyl ether

334

304 802 ugSample 121019 0947 121019 2209 1Hexachlorobutadiene ND

292 292 ugSample 121019 0947 121019 2209 1HFPO dimer methyl ester as

HFPO-DA

ND

304 425 ugSample 121019 0947 121019 2209 1Isopropylbenzene ND

608 498 ugSample 121019 0947 121019 2209 1mp-Xylene ND

304 194 ugSample 121019 0947 121019 2209 1Methylene Chloride 202 J

304 146 ugSample 121019 0947 121019 2209 1Naphthalene ND

304 778 ugSample 121019 0947 121019 2209 1n-Butylbenzene ND

304 656 ugSample 121019 0947 121019 2209 1n-Propylbenzene ND

304 316 ugSample 121019 0947 121019 2209 1o-Xylene ND

304 595 ugSample 121019 0947 121019 2209 1sec-Butylbenzene ND

304 656 ugSample 121019 0947 121019 2209 1Styrene ND

304 535 ugSample 121019 0947 121019 2209 1tert-Butylbenzene ND

304 401 ugSample 121019 0947 121019 2209 1Tetrachloroethene ND

304 559 ugSample 121019 0947 121019 2209 1Toluene ND

304 316 ugSample 121019 0947 121019 2209 1trans-12-Dichloroethene ND

304 107 ugSample 121019 0947 121019 2209 1trans-13-Dichloropropene ND

304 219 ugSample 121019 0947 121019 2209 1Trichloroethene ND

608 583 ugSample 121019 0947 121019 2209 1Trichlorofluoromethane ND

608 146 ugSample 121019 0947 121019 2209 1Vinyl chloride ND

Unknown 411 T J ugSample 113 121019 0947 121019 2209 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1121019 2209121019 0947T JUnknown 747 ugSample 118

12-Dichloroethane-d4 (Surr) 114 70 - 160 121019 0947 121019 2209 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 107 121019 0947 121019 2209 157 - 152

Dibromofluoromethane (Surr) 103 121019 0947 121019 2209 162 - 134

Eurofins TestAmerica Knoxville

12302019Page 19 of 706114

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-3Client Sample ID Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)

Toluene-d8 (Surr) 92 71 - 139 121019 0947 121019 2209 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Method 8260B - Volatile Organic Compounds (GCMS) - DLRL MDL

2-MTP as HFPO 1970 531 531 ugSample 121019 0947 121119 1653 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

12-Dichloroethane-d4 (Surr) 110 70 - 160 121019 0947 121119 1653 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 108 121019 0947 121119 1653 157 - 152

Dibromofluoromethane (Surr) 98 121019 0947 121119 1653 162 - 134

Toluene-d8 (Surr) 95 121019 0947 121119 1653 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 13600 6480 3240 ugSample 121019 0947 122019 0030 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2670 1220 ugSample 121019 0947 122419 0248 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 50 HF SU 121719 1337 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17557-4Client Sample ID Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 297 393 ugSample 121019 0947 121019 2145 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

595 595 ugSample 121019 0947 121019 2145 111133-Pentafluorobutane ND

297 428 ugSample 121019 0947 121019 2145 1111-Trichloroethane ND

595 118 ugSample 121019 0947 121019 2145 1111-Trifluoro-22-dichloroethane ND

595 595 ugSample 121019 0947 121019 2145 1111-Trifluoroethane ND

297 571 ugSample 121019 0947 121019 2145 11122-Tetrachloroethane ND

595 333 ugSample 121019 0947 121019 2145 1112-Trichloro-122-trifluoroethane ND

595 595 ugSample 121019 0947 121019 2145 1112-trichloro-1-fluoroethane ND

297 309 ugSample 121019 0947 121019 2145 1112-Trichloroethane ND

595 297 ugSample 121019 0947 121019 2145 111-Dichloro-1-fluoroethane ND

595 595 ugSample 121019 0947 121019 2145 111-dichloro-22-difluoroethane ND

595 595 ugSample 121019 0947 121019 2145 111-dichloro-22-difluoroethene ND

297 357 ugSample 121019 0947 121019 2145 111-Dichloroethane ND

297 440 ugSample 121019 0947 121019 2145 111-Dichloroethene ND

297 321 ugSample 121019 0947 121019 2145 111-Dichloropropene ND

595 595 ugSample 121019 0947 121019 2145 111-Difluoroethene ND

595 595 ugSample 121019 0947 121019 2145 1122-trichloro-11-difluoroethane ND

297 952 ugSample 121019 0947 121019 2145 1123-Trichlorobenzene ND

297 738 ugSample 121019 0947 121019 2145 1123-Trichloropropane ND

Eurofins TestAmerica Knoxville

12302019Page 20 of 706115

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-4Client Sample ID Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

124-Trichlorobenzene ND 297 100 ugSample 121019 0947 121019 2145 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

297 619 ugSample 121019 0947 121019 2145 1124-Trimethylbenzene ND

595 105 ugSample 121019 0947 121019 2145 112-Dibromo-3-Chloropropane ND

297 393 ugSample 121019 0947 121019 2145 112-Dibromoethane (EDB) ND

595 595 ugSample 121019 0947 121019 2145 112-dichloro-11-difluoroethane ND

297 524 ugSample 121019 0947 121019 2145 112-Dichlorobenzene ND

297 500 ugSample 121019 0947 121019 2145 112-Dichloroethane ND

297 297 ugSample 121019 0947 121019 2145 112-Dichloropropane ND

297 619 ugSample 121019 0947 121019 2145 1135-Trimethylbenzene ND

297 512 ugSample 121019 0947 121019 2145 113-Dichlorobenzene ND

297 333 ugSample 121019 0947 121019 2145 113-Dichloropropane ND

297 595 ugSample 121019 0947 121019 2145 114-Dichlorobenzene ND

595 607 ugSample 121019 0947 121019 2145 11-Chloro-11-difluoroethane ND

595 595 ugSample 121019 0947 121019 2145 122-dichloro-11-difluoroethylmethyl

ether

ND

297 869 ugSample 121019 0947 121019 2145 122-Dichloropropane ND

119 190 ugSample 121019 0947 121019 2145 12-Butanone (MEK) ND

595 881 ugSample 121019 0947 121019 2145 12-chloro-111444-hexafluoro-2-but

ene

ND

595 595 ugSample 121019 0947 121019 2145 12-Chloro-111-Trifluoroethane ND

297 559 ugSample 121019 0947 121019 2145 12-Chlorotoluene ND

119 274 ugSample 121019 0947 121019 2145 12-Hexanone ND

259 259 ugSample 121019 0947 121019 2145 12-MTP as HFPO 2560 E

297 619 ugSample 121019 0947 121019 2145 14-Chlorotoluene ND

297 797 ugSample 121019 0947 121019 2145 14-Isopropyltoluene ND

119 190 ugSample 121019 0947 121019 2145 14-Methyl-2-pentanone (MIBK) ND

119 702 ugSample 121019 0947 121019 2145 1Acetone ND

297 571 ugSample 121019 0947 121019 2145 1Benzene ND

297 416 ugSample 121019 0947 121019 2145 1Bromobenzene ND

297 666 ugSample 121019 0947 121019 2145 1Bromochloromethane ND

297 512 ugSample 121019 0947 121019 2145 1Bromodichloromethane ND

297 904 ugSample 121019 0947 121019 2145 1Bromoform ND

595 345 ugSample 121019 0947 121019 2145 1Bromomethane ND

297 738 ugSample 121019 0947 121019 2145 1Carbon disulfide ND

297 393 ugSample 121019 0947 121019 2145 1Carbon tetrachloride ND

872 872 ugSample 121019 0947 121019 2145 1Carbonyl Difluoride ND

297 428 ugSample 121019 0947 121019 2145 1Chlorobenzene ND

297 643 ugSample 121019 0947 121019 2145 1Chlorodibromomethane ND

595 131 ugSample 121019 0947 121019 2145 1Chloroethane ND

297 345 ugSample 121019 0947 121019 2145 1Chloroform ND

595 247 ugSample 121019 0947 121019 2145 1Chloromethane ND

297 238 ugSample 121019 0947 121019 2145 1cis-12-Dichloroethene ND

297 512 ugSample 121019 0947 121019 2145 1cis-13-Dichloropropene ND

297 286 ugSample 121019 0947 121019 2145 1Dibromomethane ND

595 105 ugSample 121019 0947 121019 2145 1Dichlorodifluoromethane ND

297 488 ugSample 121019 0947 121019 2145 1Ethylbenzene ND

297 297 ugSample 121019 0947 121019 2145 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

Eurofins TestAmerica Knoxville

12302019Page 21 of 706116

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-4Client Sample ID Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Hexachlorobutadiene ND 297 785 ugSample 121019 0947 121019 2145 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

285 285 ugSample 121019 0947 121019 2145 1HFPO dimer methyl ester as

HFPO-DA

ND

297 416 ugSample 121019 0947 121019 2145 1Isopropylbenzene ND

595 488 ugSample 121019 0947 121019 2145 1mp-Xylene ND

297 190 ugSample 121019 0947 121019 2145 1Methylene Chloride 200 J

297 143 ugSample 121019 0947 121019 2145 1Naphthalene ND

297 762 ugSample 121019 0947 121019 2145 1n-Butylbenzene ND

297 643 ugSample 121019 0947 121019 2145 1n-Propylbenzene ND

297 309 ugSample 121019 0947 121019 2145 1o-Xylene ND

297 583 ugSample 121019 0947 121019 2145 1sec-Butylbenzene ND

297 643 ugSample 121019 0947 121019 2145 1Styrene ND

297 524 ugSample 121019 0947 121019 2145 1tert-Butylbenzene ND

297 393 ugSample 121019 0947 121019 2145 1Tetrachloroethene ND

297 547 ugSample 121019 0947 121019 2145 1Toluene ND

297 309 ugSample 121019 0947 121019 2145 1trans-12-Dichloroethene ND

297 105 ugSample 121019 0947 121019 2145 1trans-13-Dichloropropene ND

297 214 ugSample 121019 0947 121019 2145 1Trichloroethene ND

595 571 ugSample 121019 0947 121019 2145 1Trichlorofluoromethane ND

595 143 ugSample 121019 0947 121019 2145 1Vinyl chloride ND

Butanoic acid heptafluoro- sodium

salt

545 T J N ugSample 113 2218-54-4 121019 0947 121019 2145 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1121019 2145121019 0947T J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-8761 ugSample 118

12-Dichloroethane-d4 (Surr) 118 70 - 160 121019 0947 121019 2145 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 110 121019 0947 121019 2145 157 - 152

Dibromofluoromethane (Surr) 107 121019 0947 121019 2145 162 - 134

Toluene-d8 (Surr) 91 121019 0947 121019 2145 171 - 139

Method 8260B - Volatile Organic Compounds (GCMS) - DLRL MDL

2-MTP as HFPO 2330 650 650 ugSample 121019 0947 121119 1718 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

12-Dichloroethane-d4 (Surr) 112 70 - 160 121019 0947 121119 1718 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 107 121019 0947 121119 1718 157 - 152

Dibromofluoromethane (Surr) 98 121019 0947 121119 1718 162 - 134

Toluene-d8 (Surr) 95 121019 0947 121119 1718 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 5730 J 6350 3170 ugSample 121019 0947 122019 0053 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2620 1190 ugSample 121019 0947 122419 0356 20Hydrogen Fluoride ND

Eurofins TestAmerica Knoxville

12302019Page 22 of 706117

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-4Client Sample ID Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

General ChemistryRL MDL

pH 50 HF SU 121719 1337 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17557-5Client Sample ID Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 310 409 ugSample 121019 0947 121019 2120 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

619 619 ugSample 121019 0947 121019 2120 111133-Pentafluorobutane ND

310 446 ugSample 121019 0947 121019 2120 1111-Trichloroethane ND

619 123 ugSample 121019 0947 121019 2120 1111-Trifluoro-22-dichloroethane ND

619 619 ugSample 121019 0947 121019 2120 1111-Trifluoroethane ND

310 595 ugSample 121019 0947 121019 2120 11122-Tetrachloroethane ND

619 347 ugSample 121019 0947 121019 2120 1112-Trichloro-122-trifluoroethane ND

619 619 ugSample 121019 0947 121019 2120 1112-trichloro-1-fluoroethane ND

310 322 ugSample 121019 0947 121019 2120 1112-Trichloroethane ND

619 310 ugSample 121019 0947 121019 2120 111-Dichloro-1-fluoroethane ND

619 619 ugSample 121019 0947 121019 2120 111-dichloro-22-difluoroethane ND

619 619 ugSample 121019 0947 121019 2120 111-dichloro-22-difluoroethene ND

310 372 ugSample 121019 0947 121019 2120 111-Dichloroethane ND

310 458 ugSample 121019 0947 121019 2120 111-Dichloroethene ND

310 334 ugSample 121019 0947 121019 2120 111-Dichloropropene ND

619 619 ugSample 121019 0947 121019 2120 111-Difluoroethene ND

619 619 ugSample 121019 0947 121019 2120 1122-trichloro-11-difluoroethane ND

310 991 ugSample 121019 0947 121019 2120 1123-Trichlorobenzene ND

310 768 ugSample 121019 0947 121019 2120 1123-Trichloropropane ND

310 104 ugSample 121019 0947 121019 2120 1124-Trichlorobenzene ND

310 644 ugSample 121019 0947 121019 2120 1124-Trimethylbenzene ND

619 109 ugSample 121019 0947 121019 2120 112-Dibromo-3-Chloropropane ND

310 409 ugSample 121019 0947 121019 2120 112-Dibromoethane (EDB) ND

619 619 ugSample 121019 0947 121019 2120 112-dichloro-11-difluoroethane ND

310 545 ugSample 121019 0947 121019 2120 112-Dichlorobenzene ND

310 520 ugSample 121019 0947 121019 2120 112-Dichloroethane ND

310 310 ugSample 121019 0947 121019 2120 112-Dichloropropane ND

310 644 ugSample 121019 0947 121019 2120 1135-Trimethylbenzene ND

310 533 ugSample 121019 0947 121019 2120 113-Dichlorobenzene ND

310 347 ugSample 121019 0947 121019 2120 113-Dichloropropane ND

310 619 ugSample 121019 0947 121019 2120 114-Dichlorobenzene ND

619 632 ugSample 121019 0947 121019 2120 11-Chloro-11-difluoroethane ND

619 619 ugSample 121019 0947 121019 2120 122-dichloro-11-difluoroethylmethyl

ether

ND

310 904 ugSample 121019 0947 121019 2120 122-Dichloropropane ND

124 198 ugSample 121019 0947 121019 2120 12-Butanone (MEK) ND

619 917 ugSample 121019 0947 121019 2120 12-chloro-111444-hexafluoro-2-but

ene

ND

Eurofins TestAmerica Knoxville

12302019Page 23 of 706118

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-5Client Sample ID Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

2-Chloro-111-Trifluoroethane ND 619 619 ugSample 121019 0947 121019 2120 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

310 582 ugSample 121019 0947 121019 2120 12-Chlorotoluene ND

124 285 ugSample 121019 0947 121019 2120 12-Hexanone ND

271 271 ugSample 121019 0947 121019 2120 12-MTP as HFPO 2070

310 644 ugSample 121019 0947 121019 2120 14-Chlorotoluene ND

310 830 ugSample 121019 0947 121019 2120 14-Isopropyltoluene ND

124 198 ugSample 121019 0947 121019 2120 14-Methyl-2-pentanone (MIBK) ND

124 731 ugSample 121019 0947 121019 2120 1Acetone ND

310 595 ugSample 121019 0947 121019 2120 1Benzene ND

310 434 ugSample 121019 0947 121019 2120 1Bromobenzene ND

310 694 ugSample 121019 0947 121019 2120 1Bromochloromethane ND

310 533 ugSample 121019 0947 121019 2120 1Bromodichloromethane ND

310 941 ugSample 121019 0947 121019 2120 1Bromoform ND

619 359 ugSample 121019 0947 121019 2120 1Bromomethane ND

310 768 ugSample 121019 0947 121019 2120 1Carbon disulfide ND

310 409 ugSample 121019 0947 121019 2120 1Carbon tetrachloride ND

909 909 ugSample 121019 0947 121019 2120 1Carbonyl Difluoride ND

310 446 ugSample 121019 0947 121019 2120 1Chlorobenzene ND

310 669 ugSample 121019 0947 121019 2120 1Chlorodibromomethane ND

619 136 ugSample 121019 0947 121019 2120 1Chloroethane ND

310 359 ugSample 121019 0947 121019 2120 1Chloroform ND

619 258 ugSample 121019 0947 121019 2120 1Chloromethane ND

310 248 ugSample 121019 0947 121019 2120 1cis-12-Dichloroethene ND

310 533 ugSample 121019 0947 121019 2120 1cis-13-Dichloropropene ND

310 297 ugSample 121019 0947 121019 2120 1Dibromomethane ND

619 109 ugSample 121019 0947 121019 2120 1Dichlorodifluoromethane ND

310 508 ugSample 121019 0947 121019 2120 1Ethylbenzene ND

310 310 ugSample 121019 0947 121019 2120 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

310 818 ugSample 121019 0947 121019 2120 1Hexachlorobutadiene ND

297 297 ugSample 121019 0947 121019 2120 1HFPO dimer methyl ester as

HFPO-DA

ND

310 434 ugSample 121019 0947 121019 2120 1Isopropylbenzene ND

619 508 ugSample 121019 0947 121019 2120 1mp-Xylene ND

310 198 ugSample 121019 0947 121019 2120 1Methylene Chloride ND

310 149 ugSample 121019 0947 121019 2120 1Naphthalene ND

310 793 ugSample 121019 0947 121019 2120 1n-Butylbenzene ND

310 669 ugSample 121019 0947 121019 2120 1n-Propylbenzene ND

310 322 ugSample 121019 0947 121019 2120 1o-Xylene ND

310 607 ugSample 121019 0947 121019 2120 1sec-Butylbenzene ND

310 669 ugSample 121019 0947 121019 2120 1Styrene ND

310 545 ugSample 121019 0947 121019 2120 1tert-Butylbenzene ND

310 409 ugSample 121019 0947 121019 2120 1Tetrachloroethene ND

310 570 ugSample 121019 0947 121019 2120 1Toluene ND

310 322 ugSample 121019 0947 121019 2120 1trans-12-Dichloroethene ND

310 109 ugSample 121019 0947 121019 2120 1trans-13-Dichloropropene ND

310 223 ugSample 121019 0947 121019 2120 1Trichloroethene ND

619 595 ugSample 121019 0947 121019 2120 1Trichlorofluoromethane ND

Eurofins TestAmerica Knoxville

12302019Page 24 of 706119

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-5Client Sample ID Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Vinyl chloride ND 619 149 ugSample 121019 0947 121019 2120 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Propene hexafluoro- 445 T J N ugSample 113 116-15-4 121019 0947 121019 2120 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1121019 2120121019 0947T JUnknown 454 ugSample 118

12-Dichloroethane-d4 (Surr) 117 70 - 160 121019 0947 121019 2120 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 108 121019 0947 121019 2120 157 - 152

Dibromofluoromethane (Surr) 105 121019 0947 121019 2120 162 - 134

Toluene-d8 (Surr) 91 121019 0947 121019 2120 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 5710 J 6610 3300 ugSample 121019 0947 122019 0116 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2730 1240 ugSample 121019 0947 122419 0419 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 50 HF SU 121719 1337 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17557-6Client Sample ID Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 301 397 ugSample 121019 0947 121019 2056 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

601 601 ugSample 121019 0947 121019 2056 111133-Pentafluorobutane ND

301 433 ugSample 121019 0947 121019 2056 1111-Trichloroethane ND

601 119 ugSample 121019 0947 121019 2056 1111-Trifluoro-22-dichloroethane ND

601 601 ugSample 121019 0947 121019 2056 1111-Trifluoroethane ND

301 577 ugSample 121019 0947 121019 2056 11122-Tetrachloroethane ND

601 337 ugSample 121019 0947 121019 2056 1112-Trichloro-122-trifluoroethane ND

601 601 ugSample 121019 0947 121019 2056 1112-trichloro-1-fluoroethane ND

301 313 ugSample 121019 0947 121019 2056 1112-Trichloroethane ND

601 301 ugSample 121019 0947 121019 2056 111-Dichloro-1-fluoroethane ND

601 601 ugSample 121019 0947 121019 2056 111-dichloro-22-difluoroethane ND

601 601 ugSample 121019 0947 121019 2056 111-dichloro-22-difluoroethene ND

301 361 ugSample 121019 0947 121019 2056 111-Dichloroethane ND

301 445 ugSample 121019 0947 121019 2056 111-Dichloroethene ND

301 325 ugSample 121019 0947 121019 2056 111-Dichloropropene ND

601 601 ugSample 121019 0947 121019 2056 111-Difluoroethene ND

601 601 ugSample 121019 0947 121019 2056 1122-trichloro-11-difluoroethane ND

301 962 ugSample 121019 0947 121019 2056 1123-Trichlorobenzene ND

301 745 ugSample 121019 0947 121019 2056 1123-Trichloropropane ND

Eurofins TestAmerica Knoxville

12302019Page 25 of 706120

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-6Client Sample ID Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

124-Trichlorobenzene ND 301 101 ugSample 121019 0947 121019 2056 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

301 625 ugSample 121019 0947 121019 2056 1124-Trimethylbenzene ND

601 106 ugSample 121019 0947 121019 2056 112-Dibromo-3-Chloropropane ND

301 397 ugSample 121019 0947 121019 2056 112-Dibromoethane (EDB) ND

601 601 ugSample 121019 0947 121019 2056 112-dichloro-11-difluoroethane ND

301 529 ugSample 121019 0947 121019 2056 112-Dichlorobenzene ND

301 505 ugSample 121019 0947 121019 2056 112-Dichloroethane ND

301 301 ugSample 121019 0947 121019 2056 112-Dichloropropane ND

301 625 ugSample 121019 0947 121019 2056 1135-Trimethylbenzene ND

301 517 ugSample 121019 0947 121019 2056 113-Dichlorobenzene ND

301 337 ugSample 121019 0947 121019 2056 113-Dichloropropane ND

301 601 ugSample 121019 0947 121019 2056 114-Dichlorobenzene ND

601 613 ugSample 121019 0947 121019 2056 11-Chloro-11-difluoroethane ND

601 601 ugSample 121019 0947 121019 2056 122-dichloro-11-difluoroethylmethyl

ether

ND

301 878 ugSample 121019 0947 121019 2056 122-Dichloropropane ND

120 192 ugSample 121019 0947 121019 2056 12-Butanone (MEK) ND

601 890 ugSample 121019 0947 121019 2056 12-chloro-111444-hexafluoro-2-but

ene

ND

601 601 ugSample 121019 0947 121019 2056 12-Chloro-111-Trifluoroethane ND

301 565 ugSample 121019 0947 121019 2056 12-Chlorotoluene ND

120 277 ugSample 121019 0947 121019 2056 12-Hexanone ND

263 263 ugSample 121019 0947 121019 2056 12-MTP as HFPO 2550 E

301 625 ugSample 121019 0947 121019 2056 14-Chlorotoluene ND

301 806 ugSample 121019 0947 121019 2056 14-Isopropyltoluene ND

120 192 ugSample 121019 0947 121019 2056 14-Methyl-2-pentanone (MIBK) ND

120 709 ugSample 121019 0947 121019 2056 1Acetone ND

301 577 ugSample 121019 0947 121019 2056 1Benzene ND

301 421 ugSample 121019 0947 121019 2056 1Bromobenzene ND

301 673 ugSample 121019 0947 121019 2056 1Bromochloromethane ND

301 517 ugSample 121019 0947 121019 2056 1Bromodichloromethane ND

301 914 ugSample 121019 0947 121019 2056 1Bromoform ND

601 349 ugSample 121019 0947 121019 2056 1Bromomethane ND

301 745 ugSample 121019 0947 121019 2056 1Carbon disulfide ND

301 397 ugSample 121019 0947 121019 2056 1Carbon tetrachloride ND

879 879 ugSample 121019 0947 121019 2056 1Carbonyl Difluoride ND

301 433 ugSample 121019 0947 121019 2056 1Chlorobenzene ND

301 649 ugSample 121019 0947 121019 2056 1Chlorodibromomethane ND

601 132 ugSample 121019 0947 121019 2056 1Chloroethane ND

301 349 ugSample 121019 0947 121019 2056 1Chloroform ND

601 250 ugSample 121019 0947 121019 2056 1Chloromethane ND

301 240 ugSample 121019 0947 121019 2056 1cis-12-Dichloroethene ND

301 517 ugSample 121019 0947 121019 2056 1cis-13-Dichloropropene ND

301 289 ugSample 121019 0947 121019 2056 1Dibromomethane ND

601 106 ugSample 121019 0947 121019 2056 1Dichlorodifluoromethane ND

301 493 ugSample 121019 0947 121019 2056 1Ethylbenzene ND

301 301 ugSample 121019 0947 121019 2056 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

Eurofins TestAmerica Knoxville

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Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-6Client Sample ID Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Hexachlorobutadiene ND 301 794 ugSample 121019 0947 121019 2056 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

289 289 ugSample 121019 0947 121019 2056 1HFPO dimer methyl ester as

HFPO-DA

ND

301 421 ugSample 121019 0947 121019 2056 1Isopropylbenzene ND

601 493 ugSample 121019 0947 121019 2056 1mp-Xylene ND

301 192 ugSample 121019 0947 121019 2056 1Methylene Chloride ND

301 144 ugSample 121019 0947 121019 2056 1Naphthalene ND

301 770 ugSample 121019 0947 121019 2056 1n-Butylbenzene ND

301 649 ugSample 121019 0947 121019 2056 1n-Propylbenzene ND

301 313 ugSample 121019 0947 121019 2056 1o-Xylene ND

301 589 ugSample 121019 0947 121019 2056 1sec-Butylbenzene ND

301 649 ugSample 121019 0947 121019 2056 1Styrene ND

301 529 ugSample 121019 0947 121019 2056 1tert-Butylbenzene ND

301 397 ugSample 121019 0947 121019 2056 1Tetrachloroethene ND

301 553 ugSample 121019 0947 121019 2056 1Toluene ND

301 313 ugSample 121019 0947 121019 2056 1trans-12-Dichloroethene ND

301 106 ugSample 121019 0947 121019 2056 1trans-13-Dichloropropene ND

301 216 ugSample 121019 0947 121019 2056 1Trichloroethene ND

601 577 ugSample 121019 0947 121019 2056 1Trichlorofluoromethane ND

601 144 ugSample 121019 0947 121019 2056 1Vinyl chloride ND

Propene hexafluoro- 408 T J N ugSample 113 116-15-4 121019 0947 121019 2056 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1121019 2056121019 0947T JUnknown 418 ugSample 118

12-Dichloroethane-d4 (Surr) 116 70 - 160 121019 0947 121019 2056 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 121019 0947 121019 2056 157 - 152

Dibromofluoromethane (Surr) 104 121019 0947 121019 2056 162 - 134

Toluene-d8 (Surr) 92 121019 0947 121019 2056 171 - 139

Method 8260B - Volatile Organic Compounds (GCMS) - DLRL MDL

2-MTP as HFPO 2350 657 657 ugSample 121019 0947 121119 1742 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

12-Dichloroethane-d4 (Surr) 112 70 - 160 121019 0947 121119 1742 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 107 121019 0947 121119 1742 157 - 152

Dibromofluoromethane (Surr) 98 121019 0947 121119 1742 162 - 134

Toluene-d8 (Surr) 96 121019 0947 121119 1742 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 4990 J 6410 3210 ugSample 121019 0947 122019 0138 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2650 1200 ugSample 121019 0947 122419 0442 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 50 HF SU 121719 1339 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Eurofins TestAmerica Knoxville

12302019Page 27 of 706122

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17557-1ProjectSite VEN Stack - MM-18

Method 8260B - Volatile Organic Compounds (GCMS)Prep MeOH Prep

2501112-Tetrachloroethane ugSample

Analyte UnitsMDLRL

0330

50011133-Pentafluorobutane ugSample0500

250111-Trichloroethane ugSample0360

500111-Trifluoro-22-dichloroethane ugSample0990

500111-Trifluoroethane ugSample0500

2501122-Tetrachloroethane ugSample0480

500112-Trichloro-122-trifluoroethane ugSample0280

500112-trichloro-1-fluoroethane ugSample0500

250112-Trichloroethane ugSample0260

50011-Dichloro-1-fluoroethane ugSample250

50011-dichloro-22-difluoroethane ugSample0500

50011-dichloro-22-difluoroethene ugSample0500

25011-Dichloroethane ugSample0300

25011-Dichloroethene ugSample0370

25011-Dichloropropene ugSample0270

50011-Difluoroethene ugSample500

500122-trichloro-11-difluoroethane ugSample0500

250123-Trichlorobenzene ugSample0800

250123-Trichloropropane ugSample0620

250124-Trichlorobenzene ugSample0840

250124-Trimethylbenzene ugSample0520

50012-Dibromo-3-Chloropropane ugSample0880

25012-Dibromoethane (EDB) ugSample0330

50012-dichloro-11-difluoroethane ugSample0500

25012-Dichlorobenzene ugSample0440

25012-Dichloroethane ugSample0420

25012-Dichloropropane ugSample0250

250135-Trimethylbenzene ugSample0520

25013-Dichlorobenzene ugSample0430

25013-Dichloropropane ugSample0280

25014-Dichlorobenzene ugSample0500

5001-Chloro-11-difluoroethane ugSample0510

50022-dichloro-11-difluoroethylmethyl ether ugSample0500

25022-Dichloropropane ugSample0730

1002-Butanone (MEK) ugSample160

5002-chloro-111444-hexafluoro-2-butene ugSample0740

5002-Chloro-111-Trifluoroethane ugSample0500

2502-Chlorotoluene ugSample0470

1002-Hexanone ugSample230

2502-MTP as HFPO ugSample250

2504-Chlorotoluene ugSample0520

2504-Isopropyltoluene ugSample0670

1004-Methyl-2-pentanone (MIBK) ugSample160

100Acetone ugSample590

250Benzene ugSample0480

250Bromobenzene ugSample0350

250Bromochloromethane ugSample0560

250Bromodichloromethane ugSample0430

250Bromoform ugSample0760

500Bromomethane ugSample290

250Carbon disulfide ugSample0620

250Carbon tetrachloride ugSample0330

Eurofins TestAmerica Knoxville

12302019Page 28 of 706123

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17557-1ProjectSite VEN Stack - MM-18

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)Prep MeOH Prep

100Carbonyl Difluoride ugSample

Analyte UnitsMDLRL

100

250Chlorobenzene ugSample0360

250Chlorodibromomethane ugSample0540

500Chloroethane ugSample110

250Chloroform ugSample0290

500Chloromethane ugSample208

250cis-12-Dichloroethene ugSample0200

250cis-13-Dichloropropene ugSample0430

250Dibromomethane ugSample0240

500Dichlorodifluoromethane ugSample0880

250Ethylbenzene ugSample0410

250Heptafluoropropyl 1222-tetrafluoroethyl ether ugSample250

250Hexachlorobutadiene ugSample0660

250HFPO dimer methyl ester as HFPO-DA ugSample250

250Isopropylbenzene ugSample0350

500mp-Xylene ugSample0410

250Methylene Chloride ugSample160

250Naphthalene ugSample120

250n-Butylbenzene ugSample0640

250n-Propylbenzene ugSample0540

250o-Xylene ugSample0260

250sec-Butylbenzene ugSample0490

250Styrene ugSample0540

250tert-Butylbenzene ugSample0440

250Tetrachloroethene ugSample0330

250Toluene ugSample0460

250trans-12-Dichloroethene ugSample0260

250trans-13-Dichloropropene ugSample0880

250Trichloroethene ugSample0180

500Trichlorofluoromethane ugSample0480

500Vinyl chloride ugSample120

Method 9056 - Anions Ion ChromatographyPrep MeOH Prep

110Hydrogen Fluoride ugSample

Analyte UnitsMDLRL

500

1000Total Fluorine ugSample500

Eurofins TestAmerica Knoxville

12302019Page 29 of 706124

ANALYTICAL REPORTJob Number 140-17462-1

Job Description VEN MM-18 Field QC

Contract Number LBIO-67048

ForChemours Company FC LLC The

co AECOMSabre Building Suite 300

4051 Ogletown RoadNewark DE 19713

Attention Michael Aucoin

_____________________________________________

Approved for releaseCourtney M AdkinsProject Manager II12232019 302 PM

Courtney M Adkins Project Manager II5815 Middlebrook Pike Knoxville TN 37921

(865)291-3000 courtneyadkinstestamericainccom

12232019

This report may not be reproduced except in full and with written approval from the laboratory For questions please contact the Project Manager atthe e-mail address or telephone number listed on this page

The test results in this report relate only to the samples as received by the laboratory and will meet all requirements of the methodology with anyexceptions noted This report shall not be reproduced except in full without the express written approval of the laboratory All questions should bedirected to the Eurofins TestAmerica Project Manager

This report has been electronically signed and authorized by the signatory Electronic signature is intended to be the legally binding equivalent of atraditionally handwritten signature

Eurofins TestAmerica Knoxville

5815 Middlebrook Pike Knoxville TN 37921

Tel (865) 291-3000 Fax (865) 584-4315 wwwtestamericainccom

12232019Page 1 of 820125

Table of ContentsCover Title Page 1

Data Summaries 5

Definitions 5

Method Summary 6

Sample Summary 7

Case Narrative 8

QC Association 10

Client Sample Results 13

Default Detection Limits 35

Surrogate Summary 37

QC Sample Results 39

Chronicle 46

Certification Summary 54

Manual Integration Summary 56

Organic Sample Data 69

GCMS VOA 69

Method 8260B 69Method 8260B QC Summary 70Method 8260B Sample Data 83Standards Data 179

Method 8260B ICAL Data 179Method 8260B CCAL Data 281

Raw QC Data 329Method 8260B Tune Data 329Method 8260B Blank Data 345Method 8260B LCSLCSD Data 355

12232019Page 2 of 820126

Table of ContentsMethod 8260B MSMSD Data 368

Method 8260B Run Logs 376Method 8260B Prep Data 389

HPLCIC 392

Method 9056 392Method 9056 QC Summary 393Method 9056 Sample Data 396Standards Data 423

Method 9056 ICAL Data 423Method 9056 CCAL Data 450

Raw QC Data 493Method 9056 Blank Data 493Method 9056 LCSLCSD Data 519

Method 9056 Run Logs 525Method 9056 Prep Data 539

Method 9056A Total Halogens 541Method 9056A Total Halogens QC Summary 542Method 9056A Total Halogens Sample Data 545Standards Data 580

Method 9056A Total Halogens ICAL Data 580Method 9056A Total Halogens CCAL Data 605

Raw QC Data 624Method 9056A Total Halogens Blank Data 624Method 9056A Total Halogens LCSLCSD Data 641

Method 9056A Total Halogens Run Logs 649Method 9056A Total Halogens Prep Data 658

12232019Page 3 of 820127

Table of ContentsLCMS 662

Method DV-LC-0012 662Method DV-LC-0012 QC Summary 663Method DV-LC-0012 Sample Data 668Standards Data 704

Method DV-LC-0012 ICAL Data 704Method DV-LC-0012 CCAL Data 751

Raw QC Data 763Method DV-LC-0012 Tune Data 763Method DV-LC-0012 Blank Data 768Method DV-LC-0012 LCSLCSD Data 772

Method DV-LC-0012 Run Logs 785Method DV-LC-0012 Prep Data 788

Inorganic Sample Data 796

General Chemistry Data 796

Gen Chem Cover Page 797

Gen Chem Sample Data 798

Gen Chem QC Data 807Gen Chem ICVCCV 807

Gen Chem MDL 808

Gen Chem Analysis Run Log 809

Gen Chem Prep Data 810

Gen Chem Raw Data 811

Shipping and Receiving Documents 813

Client Chain of Custody 814

12232019Page 4 of 820128

DefinitionsGlossaryJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Qualifiers

GCMS VOAQualifier Description

LCS or LCSD is outside acceptance limits

Qualifier

B Compound was found in the blank and sample

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

GCMS VOA TICsQualifier Description

J Indicates an Estimated Value for TICs

Qualifier

N Presumptive evidence of material

T Result is a tentatively identified compound (TIC) and an estimated value

HPLCICQualifier Description

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

Qualifier

LCMSQualifier Description

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

Qualifier

General ChemistryQualifier Description

HF Field parameter with a holding time of 15 minutes Test performed by laboratory at clients request

Qualifier

GlossaryThese commonly used abbreviations may or may not be present in this report

curren Listed under the D column to designate that the result is reported on a dry weight basis

Abbreviation

R Percent Recovery

CFL Contains Free Liquid

CNF Contains No Free Liquid

DER Duplicate Error Ratio (normalized absolute difference)

Dil Fac Dilution Factor

DL Detection Limit (DoDDOE)

DL RA RE IN Indicates a Dilution Re-analysis Re-extraction or additional Initial metalsanion analysis of the sample

DLC Decision Level Concentration (Radiochemistry)

EDL Estimated Detection Limit (Dioxin)

LOD Limit of Detection (DoDDOE)

LOQ Limit of Quantitation (DoDDOE)

MDA Minimum Detectable Activity (Radiochemistry)

MDC Minimum Detectable Concentration (Radiochemistry)

MDL Method Detection Limit

ML Minimum Level (Dioxin)

NC Not Calculated

ND Not Detected at the reporting limit (or MDL or EDL if shown)

PQL Practical Quantitation Limit

QC Quality Control

RER Relative Error Ratio (Radiochemistry)

RL Reporting Limit or Requested Limit (Radiochemistry)

RPD Relative Percent Difference a measure of the relative difference between two points

TEF Toxicity Equivalent Factor (Dioxin)

TEQ Toxicity Equivalent Quotient (Dioxin)

Eurofins TestAmerica Knoxville

12232019Page 5 of 820129

Method SummaryJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Method Method Description LaboratoryProtocol

SW8468260B Volatile Organic Compounds (GCMS) TAL KNX

SW8469056 Anions Ion Chromatography TAL KNX

SW8468321A PFOA and PFOS TAL DEN

SW8469041A pH TAL KNX

SW8465050 Bomb Preparation Method for Solid Waste TAL KNX

NoneMeOH Prep Methanol Impinger Preparation TAL KNX

TAL SOPNone Leaching Procedure TAL DEN

Protocol References

None = None

SW846 = Test Methods For Evaluating Solid Waste PhysicalChemical Methods Third Edition November 1986 And Its Updates

TAL SOP = TestAmerica Laboratories Standard Operating Procedure

Laboratory References

TAL DEN = Eurofins TestAmerica Denver 4955 Yarrow Street Arvada CO 80002 TEL (303)736-0100

TAL KNX = Eurofins TestAmerica Knoxville 5815 Middlebrook Pike Knoxville TN 37921 TEL (865)291-3000

Eurofins TestAmerica Knoxville

12232019Page 6 of 820130

Sample SummaryJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID Client Sample ID ReceivedCollectedMatrix Asset ID

140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1

BT

Air 112219 0000 112519 0800

140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2

BT

Air 112219 0000 112519 0800

140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3

BT

Air 112219 0000 112519 0800

140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4

BT

Air 112219 0000 112519 0800

140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5

BT

Air 112219 0000 112519 0800

140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6

BT

Air 112219 0000 112519 0800

140-17462-7 A-5786 QC MEOH RB Air 112219 0000 112519 0800

140-17462-8 A-5787 QC MEOH TB Air 112219 0000 112519 0800

140-17462-9 A-5788 QC MEOH PB Air 112219 0000 112519 0800

Eurofins TestAmerica Knoxville

12232019Page 7 of 820131

Job Narrative140-17462-1

Sample Receipt

The samples were received on November 25 2019 at 800 AM in good condition and properly preserved The temperature of the cooler at receipt was 33ordm C

GCMS VOA

Impinger Sample Preparation and Analysis Impinger samples were analyzed for the volatile organic target analytes by purge and trap GCMS using Eurofins TestAmerica Knoxville standard operating procedure KNOX-MS-0015 based on the following method

middot SW-846 8260B ldquoVolatile Organic Compounds by Gas Chromatography Mass Spectrometry (GCMS)rdquo

Each sample is prepared by adding a known amount of sample to the purge water in a purge and trap vessel and spiking with internal standards surrogates and matrix spike analytes (as needed) Volatile compounds are introduced into the gas chromatograph by the purge and trap method The components are separated using the chromatograph and detected using a mass spectrometer which provides both qualitative and quantitative information

Impinger sample results were calculated using the following equation

Concentration μgsample = (C times DF times W times Vt) (Va)WhereC = On-column concentration μgLDF = Dilution factorW = Volume of water purged LVt = Methanol extract final volume μL Va = Volume of extract analyzed microL

Method 8260B The following analyte(s) recovered outside control limits but within marginal exceedance limits for the LCS associated with batch 140-35880 Trichlorofluoromethane This is not indicative of a systematic control problem because these were random marginal exceedances Qualified results have been reported

No additional analytical or quality issues were noted other than those described above or in the DefinitionsGlossary page

LCMS No analytical or quality issues were noted other than those described in the DefinitionsGlossary page

General Chemistry Total Chlorine The samples were prepared for total chlorine using SOP number KNOX-WC-0016 (based on ASTM Method E442 and SW-846 Method 5050) The sample is oxidized by combustion in an oxygen flask at atmospheric pressure or a bomb containing oxygen under pressure The liberated halogen compounds are absorbed primarily as halides in a sodium carbonatesodium bicarbonate buffer solution The combustion products are collected by repeated rinsing of the combustion apparatus and analyzed by ion chromatography in accordance with SOP KNOX- WC-0005 (based on SW-846 Method 9056) The results are calculated using the following equation

C = [(Ccom times Vcom) W] times 1000 gKg

WhereC = Concentration of analyte in the sample mgKgCcom = Concentration of analyte in the combustate mgLVcom = Total volume of combustate LW = Weight of sample combusted g

Anions in Impinger Solutions Anions are is determined in accordance to SOP KNOX-WC-0005 (based on methods 3000A and 9056) The samples were diluted a minimum of 120 in ion chromatography solvent buffer solution to reduce the methanol concentration before injection Buffer concentrate was added until the pH was 10 Samples are diluted with ion chromatography eluate solution to bring the concentrations within the calibration range when necessary Higher dilutions are applied as necessary

An aliquot of prepared sample is introduced into the ion chromatograph Anions are identified based on their retention times as compared to those of known standards Quantification is accomplished by measuring the peak response and comparing it to a calibration curve generated from known standards

12232019Page 8 of 820132

The pH of all samples were tested with pH paper QC consisted of initial CCV and LCS which also serve as initial calibration duplicate analysis for every 10 samples and closing CCV A certified thermometer was used to check the ambient temperature

No additional analytical or quality issues were noted other than those described above or in the DefinitionsGlossary page

Organic Prep No analytical or quality issues were noted other than those described in the DefinitionsGlossary page

No analytical or quality issues were noted other than those described in the DefinitionsGlossary page

12232019Page 9 of 820133

QC Association SummaryJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

GCMS VOA

Prep Batch 35705

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air MeOH Prep140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air MeOH Prep140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air MeOH Prep140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air MeOH Prep140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air MeOH Prep140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air MeOH Prep140-17462-7 A-5786 QC MEOH RB TotalNA

Air MeOH Prep140-17462-8 A-5787 QC MEOH TB TotalNA

Air MeOH Prep140-17462-9 A-5788 QC MEOH PB TotalNA

Air MeOH PrepMB 140-357052-A Method Blank TotalNA

Air MeOH PrepLCS 140-357051-A Lab Control Sample TotalNA

Air MeOH Prep140-17462-2 MS A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air MeOH Prep140-17462-2 MSD A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Analysis Batch 35880

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8260B 35705140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air 8260B 35705140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 8260B 35705140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air 8260B 35705140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air 8260B 35705140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air 8260B 35705140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air 8260B 35705140-17462-7 A-5786 QC MEOH RB TotalNA

Air 8260B 35705140-17462-8 A-5787 QC MEOH TB TotalNA

Air 8260B 35705140-17462-9 A-5788 QC MEOH PB TotalNA

Air 8260B 35705MB 140-357052-A Method Blank TotalNA

Air 8260B 35705LCS 140-357051-A Lab Control Sample TotalNA

Air 8260B 35705LCS 140-357051-A Lab Control Sample TotalNA

Air 8260B 35705140-17462-2 MS A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 8260B 35705140-17462-2 MSD A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

HPLCIC

Prep Batch 35705

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air MeOH Prep140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air MeOH Prep140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air MeOH Prep140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air MeOH Prep140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air MeOH Prep140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air MeOH Prep140-17462-7 A-5786 QC MEOH RB TotalNA

Air MeOH Prep140-17462-8 A-5787 QC MEOH TB TotalNA

Air MeOH Prep140-17462-9 A-5788 QC MEOH PB TotalNA

Air MeOH PrepMB 140-3570514-A Method Blank TotalNA

Air MeOH PrepMB 140-3570514-B Method Blank TotalNA

Air MeOH PrepLCS 140-3570515-A Lab Control Sample TotalNA

Air MeOH PrepLCS 140-3570515-B Lab Control Sample TotalNA

Air MeOH PrepLCSD 140-3570516-A Lab Control Sample Dup TotalNA

Air MeOH PrepLCSD 140-3570516-B Lab Control Sample Dup TotalNA

Eurofins TestAmerica Knoxville

12232019Page 10 of 820134

QC Association SummaryJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

HPLCIC

Prep Batch 35762

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 5050 35705140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air 5050 35705140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 5050 35705140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air 5050 35705140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air 5050 35705140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air 5050 35705140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air 5050 35705140-17462-7 A-5786 QC MEOH RB TotalNA

Air 5050 35705140-17462-8 A-5787 QC MEOH TB TotalNA

Air 5050 35705140-17462-9 A-5788 QC MEOH PB TotalNA

Air 5050 35705MB 140-3570514-B Method Blank TotalNA

Air 5050 35705LCS 140-3570515-B Lab Control Sample TotalNA

Air 5050 35705LCSD 140-3570516-B Lab Control Sample Dup TotalNA

Analysis Batch 36121

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35762140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air 9056 35762140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 9056 35762140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air 9056 35762140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air 9056 35762140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air 9056 35762140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air 9056 35762140-17462-7 A-5786 QC MEOH RB TotalNA

Air 9056 35762140-17462-8 A-5787 QC MEOH TB TotalNA

Air 9056 35762140-17462-9 A-5788 QC MEOH PB TotalNA

Air 9056 35762MB 140-3570514-B Method Blank TotalNA

Air 9056 35762LCS 140-3570515-B Lab Control Sample TotalNA

Air 9056 35762LCSD 140-3570516-B Lab Control Sample Dup TotalNA

Analysis Batch 36210

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35705140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air 9056 35705140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 9056 35705140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air 9056 35705140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air 9056 35705140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air 9056 35705140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air 9056 35705140-17462-7 A-5786 QC MEOH RB TotalNA

Air 9056 35705140-17462-8 A-5787 QC MEOH TB TotalNA

Air 9056 35705140-17462-9 A-5788 QC MEOH PB TotalNA

Air 9056 35705MB 140-3570514-A Method Blank TotalNA

Air 9056 35705LCS 140-3570515-A Lab Control Sample TotalNA

Air 9056 35705LCSD 140-3570516-A Lab Control Sample Dup TotalNA

LCMS

Analysis Batch 464589

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321ADLCK 280-46458913 Lab Control Sample TotalNA

Eurofins TestAmerica Knoxville

12232019Page 11 of 820135

QC Association SummaryJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

LCMS

Prep Batch 479505

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air None140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air None140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air None140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air None140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air None140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air None140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air None140-17462-7 A-5786 QC MEOH RB TotalNA

Air None140-17462-8 A-5787 QC MEOH TB TotalNA

Air None140-17462-9 A-5788 QC MEOH PB TotalNA

Air NoneMB 280-4795051-A Method Blank TotalNA

Air NoneLCS 280-4795052-A Lab Control Sample TotalNA

Air NoneLCSD 280-4795053-A Lab Control Sample Dup TotalNA

Analysis Batch 479931

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321A 479505140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air 8321A 479505140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 8321A 479505140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air 8321A 479505140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air 8321A 479505140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air 8321A 479505140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air 8321A 479505140-17462-7 A-5786 QC MEOH RB TotalNA

Air 8321A 479505140-17462-8 A-5787 QC MEOH TB TotalNA

Air 8321A 479505140-17462-9 A-5788 QC MEOH PB TotalNA

Air 8321A 479505MB 280-4795051-A Method Blank TotalNA

Air 8321A 479505LCS 280-4795052-A Lab Control Sample TotalNA

Air 8321A 479505LCSD 280-4795053-A Lab Control Sample Dup TotalNA

General Chemistry

Analysis Batch 36086

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9041A140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air 9041A140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 9041A140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air 9041A140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air 9041A140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air 9041A140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air 9041A140-17462-7 A-5786 QC MEOH RB TotalNA

Air 9041A140-17462-8 A-5787 QC MEOH TB TotalNA

Air 9041A140-17462-9 A-5788 QC MEOH PB TotalNA

Air 9041ALCS 140-360862 Lab Control Sample TotalNA

Eurofins TestAmerica Knoxville

12232019Page 12 of 820136

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-1Client Sample ID A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 287 379 ugSample 112919 1045 120619 1517 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

574 574 ugSample 112919 1045 120619 1517 111133-Pentafluorobutane ND

287 413 ugSample 112919 1045 120619 1517 1111-Trichloroethane ND

574 114 ugSample 112919 1045 120619 1517 1111-Trifluoro-22-dichloroethane ND

574 574 ugSample 112919 1045 120619 1517 1111-Trifluoroethane ND

287 551 ugSample 112919 1045 120619 1517 11122-Tetrachloroethane ND

574 321 ugSample 112919 1045 120619 1517 1112-Trichloro-122-trifluoroethane ND

574 574 ugSample 112919 1045 120619 1517 1112-trichloro-1-fluoroethane ND

287 298 ugSample 112919 1045 120619 1517 1112-Trichloroethane ND

574 287 ugSample 112919 1045 120619 1517 111-Dichloro-1-fluoroethane ND

574 574 ugSample 112919 1045 120619 1517 111-dichloro-22-difluoroethane ND

574 574 ugSample 112919 1045 120619 1517 111-dichloro-22-difluoroethene ND

287 344 ugSample 112919 1045 120619 1517 111-Dichloroethane ND

287 425 ugSample 112919 1045 120619 1517 111-Dichloroethene ND

287 310 ugSample 112919 1045 120619 1517 111-Dichloropropene ND

574 574 ugSample 112919 1045 120619 1517 111-Difluoroethene ND

574 574 ugSample 112919 1045 120619 1517 1122-trichloro-11-difluoroethane ND

287 918 ugSample 112919 1045 120619 1517 1123-Trichlorobenzene ND

287 712 ugSample 112919 1045 120619 1517 1123-Trichloropropane ND

287 964 ugSample 112919 1045 120619 1517 1124-Trichlorobenzene ND

287 597 ugSample 112919 1045 120619 1517 1124-Trimethylbenzene ND

574 101 ugSample 112919 1045 120619 1517 112-Dibromo-3-Chloropropane ND

287 379 ugSample 112919 1045 120619 1517 112-Dibromoethane (EDB) ND

574 574 ugSample 112919 1045 120619 1517 112-dichloro-11-difluoroethane ND

287 505 ugSample 112919 1045 120619 1517 112-Dichlorobenzene ND

287 482 ugSample 112919 1045 120619 1517 112-Dichloroethane ND

287 287 ugSample 112919 1045 120619 1517 112-Dichloropropane ND

287 597 ugSample 112919 1045 120619 1517 1135-Trimethylbenzene ND

287 494 ugSample 112919 1045 120619 1517 113-Dichlorobenzene ND

287 321 ugSample 112919 1045 120619 1517 113-Dichloropropane ND

287 574 ugSample 112919 1045 120619 1517 114-Dichlorobenzene ND

574 585 ugSample 112919 1045 120619 1517 11-Chloro-11-difluoroethane ND

574 574 ugSample 112919 1045 120619 1517 122-dichloro-11-difluoroethylmethyl

ether

ND

287 838 ugSample 112919 1045 120619 1517 122-Dichloropropane ND

115 184 ugSample 112919 1045 120619 1517 12-Butanone (MEK) ND

574 849 ugSample 112919 1045 120619 1517 12-chloro-111444-hexafluoro-2-but

ene

ND

574 574 ugSample 112919 1045 120619 1517 12-Chloro-111-Trifluoroethane ND

287 540 ugSample 112919 1045 120619 1517 12-Chlorotoluene ND

115 264 ugSample 112919 1045 120619 1517 12-Hexanone ND

251 251 ugSample 112919 1045 120619 1517 12-MTP as HFPO ND

287 597 ugSample 112919 1045 120619 1517 14-Chlorotoluene ND

287 769 ugSample 112919 1045 120619 1517 14-Isopropyltoluene ND

115 184 ugSample 112919 1045 120619 1517 14-Methyl-2-pentanone (MIBK) ND

115 677 ugSample 112919 1045 120619 1517 1Acetone ND

287 551 ugSample 112919 1045 120619 1517 1Benzene ND

287 402 ugSample 112919 1045 120619 1517 1Bromobenzene ND

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12232019Page 13 of 820137

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-1Client Sample ID A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromochloromethane ND 287 643 ugSample 112919 1045 120619 1517 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

287 494 ugSample 112919 1045 120619 1517 1Bromodichloromethane ND

287 872 ugSample 112919 1045 120619 1517 1Bromoform ND

574 333 ugSample 112919 1045 120619 1517 1Bromomethane ND

287 712 ugSample 112919 1045 120619 1517 1Carbon disulfide ND

287 379 ugSample 112919 1045 120619 1517 1Carbon tetrachloride ND

843 843 ugSample 112919 1045 120619 1517 1Carbonyl Difluoride ND

287 413 ugSample 112919 1045 120619 1517 1Chlorobenzene ND

287 620 ugSample 112919 1045 120619 1517 1Chlorodibromomethane ND

574 126 ugSample 112919 1045 120619 1517 1Chloroethane ND

287 333 ugSample 112919 1045 120619 1517 1Chloroform ND

574 239 ugSample 112919 1045 120619 1517 1Chloromethane ND

287 230 ugSample 112919 1045 120619 1517 1cis-12-Dichloroethene ND

287 494 ugSample 112919 1045 120619 1517 1cis-13-Dichloropropene ND

287 275 ugSample 112919 1045 120619 1517 1Dibromomethane ND

574 101 ugSample 112919 1045 120619 1517 1Dichlorodifluoromethane ND

287 471 ugSample 112919 1045 120619 1517 1Ethylbenzene ND

287 287 ugSample 112919 1045 120619 1517 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

287 758 ugSample 112919 1045 120619 1517 1Hexachlorobutadiene ND

275 275 ugSample 112919 1045 120619 1517 1HFPO dimer methyl ester as

HFPO-DA

ND

287 402 ugSample 112919 1045 120619 1517 1Isopropylbenzene ND

574 471 ugSample 112919 1045 120619 1517 1mp-Xylene ND

287 184 ugSample 112919 1045 120619 1517 1Methylene Chloride ND

287 138 ugSample 112919 1045 120619 1517 1Naphthalene ND

287 735 ugSample 112919 1045 120619 1517 1n-Butylbenzene ND

287 620 ugSample 112919 1045 120619 1517 1n-Propylbenzene ND

287 298 ugSample 112919 1045 120619 1517 1o-Xylene ND

287 562 ugSample 112919 1045 120619 1517 1sec-Butylbenzene ND

287 620 ugSample 112919 1045 120619 1517 1Styrene ND

287 505 ugSample 112919 1045 120619 1517 1tert-Butylbenzene ND

287 379 ugSample 112919 1045 120619 1517 1Tetrachloroethene ND

287 528 ugSample 112919 1045 120619 1517 1Toluene ND

287 298 ugSample 112919 1045 120619 1517 1trans-12-Dichloroethene ND

287 101 ugSample 112919 1045 120619 1517 1trans-13-Dichloropropene ND

287 207 ugSample 112919 1045 120619 1517 1Trichloroethene ND

574 551 ugSample 112919 1045 120619 1517 1Trichlorofluoromethane ND

574 138 ugSample 112919 1045 120619 1517 1Vinyl chloride ND

Tentatively Identified Compound None ugSample 112919 1045 120619 1517 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1045 120619 1517 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 112919 1045 120619 1517 157 - 152

Dibromofluoromethane (Surr) 104 112919 1045 120619 1517 162 - 134

Toluene-d8 (Surr) 97 112919 1045 120619 1517 171 - 139

Eurofins TestAmerica Knoxville

12232019Page 14 of 820138

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-1Client Sample ID A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 11800 6120 3060 ugSample 112919 1045 121319 2153 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2530 1150 ugSample 112919 1045 121819 1319 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1037 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 130 50 - 200 120419 1005 120819 1037 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-2Client Sample ID A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 299 394 ugSample 112919 1045 120619 1542 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

598 598 ugSample 112919 1045 120619 1542 111133-Pentafluorobutane ND

299 430 ugSample 112919 1045 120619 1542 1111-Trichloroethane ND

598 118 ugSample 112919 1045 120619 1542 1111-Trifluoro-22-dichloroethane ND

598 598 ugSample 112919 1045 120619 1542 1111-Trifluoroethane ND

299 574 ugSample 112919 1045 120619 1542 11122-Tetrachloroethane ND

598 335 ugSample 112919 1045 120619 1542 1112-Trichloro-122-trifluoroethane ND

598 598 ugSample 112919 1045 120619 1542 1112-trichloro-1-fluoroethane ND

299 311 ugSample 112919 1045 120619 1542 1112-Trichloroethane ND

598 299 ugSample 112919 1045 120619 1542 111-Dichloro-1-fluoroethane ND

598 598 ugSample 112919 1045 120619 1542 111-dichloro-22-difluoroethane ND

598 598 ugSample 112919 1045 120619 1542 111-dichloro-22-difluoroethene ND

299 359 ugSample 112919 1045 120619 1542 111-Dichloroethane ND

299 442 ugSample 112919 1045 120619 1542 111-Dichloroethene ND

299 323 ugSample 112919 1045 120619 1542 111-Dichloropropene ND

598 598 ugSample 112919 1045 120619 1542 111-Difluoroethene ND

598 598 ugSample 112919 1045 120619 1542 1122-trichloro-11-difluoroethane ND

299 956 ugSample 112919 1045 120619 1542 1123-Trichlorobenzene ND

299 741 ugSample 112919 1045 120619 1542 1123-Trichloropropane ND

299 100 ugSample 112919 1045 120619 1542 1124-Trichlorobenzene ND

299 621 ugSample 112919 1045 120619 1542 1124-Trimethylbenzene ND

598 105 ugSample 112919 1045 120619 1542 112-Dibromo-3-Chloropropane ND

299 394 ugSample 112919 1045 120619 1542 112-Dibromoethane (EDB) ND

598 598 ugSample 112919 1045 120619 1542 112-dichloro-11-difluoroethane ND

299 526 ugSample 112919 1045 120619 1542 112-Dichlorobenzene ND

299 502 ugSample 112919 1045 120619 1542 112-Dichloroethane ND

Eurofins TestAmerica Knoxville

12232019Page 15 of 820139

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-2Client Sample ID A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

12-Dichloropropane ND 299 299 ugSample 112919 1045 120619 1542 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

299 621 ugSample 112919 1045 120619 1542 1135-Trimethylbenzene ND

299 514 ugSample 112919 1045 120619 1542 113-Dichlorobenzene ND

299 335 ugSample 112919 1045 120619 1542 113-Dichloropropane ND

299 598 ugSample 112919 1045 120619 1542 114-Dichlorobenzene ND

598 610 ugSample 112919 1045 120619 1542 11-Chloro-11-difluoroethane ND

598 598 ugSample 112919 1045 120619 1542 122-dichloro-11-difluoroethylmethyl

ether

ND

299 872 ugSample 112919 1045 120619 1542 122-Dichloropropane ND

120 191 ugSample 112919 1045 120619 1542 12-Butanone (MEK) ND

598 884 ugSample 112919 1045 120619 1542 12-chloro-111444-hexafluoro-2-but

ene

ND

598 598 ugSample 112919 1045 120619 1542 12-Chloro-111-Trifluoroethane ND

299 562 ugSample 112919 1045 120619 1542 12-Chlorotoluene ND

120 275 ugSample 112919 1045 120619 1542 12-Hexanone ND

261 261 ugSample 112919 1045 120619 1542 12-MTP as HFPO ND

299 621 ugSample 112919 1045 120619 1542 14-Chlorotoluene ND

299 801 ugSample 112919 1045 120619 1542 14-Isopropyltoluene ND

120 191 ugSample 112919 1045 120619 1542 14-Methyl-2-pentanone (MIBK) ND

120 705 ugSample 112919 1045 120619 1542 1Acetone ND

299 574 ugSample 112919 1045 120619 1542 1Benzene ND

299 418 ugSample 112919 1045 120619 1542 1Bromobenzene ND

299 669 ugSample 112919 1045 120619 1542 1Bromochloromethane ND

299 514 ugSample 112919 1045 120619 1542 1Bromodichloromethane ND

299 908 ugSample 112919 1045 120619 1542 1Bromoform ND

598 347 ugSample 112919 1045 120619 1542 1Bromomethane ND

299 741 ugSample 112919 1045 120619 1542 1Carbon disulfide ND

299 394 ugSample 112919 1045 120619 1542 1Carbon tetrachloride ND

879 879 ugSample 112919 1045 120619 1542 1Carbonyl Difluoride ND

299 430 ugSample 112919 1045 120619 1542 1Chlorobenzene ND

299 645 ugSample 112919 1045 120619 1542 1Chlorodibromomethane ND

598 131 ugSample 112919 1045 120619 1542 1Chloroethane ND

299 347 ugSample 112919 1045 120619 1542 1Chloroform ND

598 249 ugSample 112919 1045 120619 1542 1Chloromethane ND

299 239 ugSample 112919 1045 120619 1542 1cis-12-Dichloroethene ND

299 514 ugSample 112919 1045 120619 1542 1cis-13-Dichloropropene ND

299 287 ugSample 112919 1045 120619 1542 1Dibromomethane ND

598 105 ugSample 112919 1045 120619 1542 1Dichlorodifluoromethane ND

299 490 ugSample 112919 1045 120619 1542 1Ethylbenzene ND

299 299 ugSample 112919 1045 120619 1542 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

299 789 ugSample 112919 1045 120619 1542 1Hexachlorobutadiene ND

287 287 ugSample 112919 1045 120619 1542 1HFPO dimer methyl ester as

HFPO-DA

ND

299 418 ugSample 112919 1045 120619 1542 1Isopropylbenzene ND

598 490 ugSample 112919 1045 120619 1542 1mp-Xylene ND

299 191 ugSample 112919 1045 120619 1542 1Methylene Chloride ND

299 143 ugSample 112919 1045 120619 1542 1Naphthalene ND

Eurofins TestAmerica Knoxville

12232019Page 16 of 820140

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-2Client Sample ID A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

n-Butylbenzene ND 299 765 ugSample 112919 1045 120619 1542 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

299 645 ugSample 112919 1045 120619 1542 1n-Propylbenzene ND

299 311 ugSample 112919 1045 120619 1542 1o-Xylene ND

299 586 ugSample 112919 1045 120619 1542 1sec-Butylbenzene ND

299 645 ugSample 112919 1045 120619 1542 1Styrene ND

299 526 ugSample 112919 1045 120619 1542 1tert-Butylbenzene ND

299 394 ugSample 112919 1045 120619 1542 1Tetrachloroethene ND

299 550 ugSample 112919 1045 120619 1542 1Toluene ND

299 311 ugSample 112919 1045 120619 1542 1trans-12-Dichloroethene ND

299 105 ugSample 112919 1045 120619 1542 1trans-13-Dichloropropene ND

299 215 ugSample 112919 1045 120619 1542 1Trichloroethene ND

598 574 ugSample 112919 1045 120619 1542 1Trichlorofluoromethane ND

598 143 ugSample 112919 1045 120619 1542 1Vinyl chloride ND

Cyclohexane 433 T J N ugSample 442 110-82-7 112919 1045 120619 1542 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1045 120619 1542 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1045 120619 1542 157 - 152

Dibromofluoromethane (Surr) 105 112919 1045 120619 1542 162 - 134

Toluene-d8 (Surr) 96 112919 1045 120619 1542 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 14800 6370 3190 ugSample 112919 1045 121319 2214 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2630 1200 ugSample 112919 1045 121819 1340 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1040 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 131 50 - 200 120419 1005 120819 1040 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-3Client Sample ID A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 291 384 ugSample 112919 1045 120619 1606 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

582 582 ugSample 112919 1045 120619 1606 111133-Pentafluorobutane ND

Eurofins TestAmerica Knoxville

12232019Page 17 of 820141

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-3Client Sample ID A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

111-Trichloroethane ND 291 419 ugSample 112919 1045 120619 1606 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

582 115 ugSample 112919 1045 120619 1606 1111-Trifluoro-22-dichloroethane ND

582 582 ugSample 112919 1045 120619 1606 1111-Trifluoroethane ND

291 559 ugSample 112919 1045 120619 1606 11122-Tetrachloroethane ND

582 326 ugSample 112919 1045 120619 1606 1112-Trichloro-122-trifluoroethane ND

582 582 ugSample 112919 1045 120619 1606 1112-trichloro-1-fluoroethane ND

291 303 ugSample 112919 1045 120619 1606 1112-Trichloroethane ND

582 291 ugSample 112919 1045 120619 1606 111-Dichloro-1-fluoroethane ND

582 582 ugSample 112919 1045 120619 1606 111-dichloro-22-difluoroethane ND

582 582 ugSample 112919 1045 120619 1606 111-dichloro-22-difluoroethene ND

291 349 ugSample 112919 1045 120619 1606 111-Dichloroethane ND

291 431 ugSample 112919 1045 120619 1606 111-Dichloroethene ND

291 314 ugSample 112919 1045 120619 1606 111-Dichloropropene ND

582 582 ugSample 112919 1045 120619 1606 111-Difluoroethene ND

582 582 ugSample 112919 1045 120619 1606 1122-trichloro-11-difluoroethane ND

291 932 ugSample 112919 1045 120619 1606 1123-Trichlorobenzene ND

291 722 ugSample 112919 1045 120619 1606 1123-Trichloropropane ND

291 978 ugSample 112919 1045 120619 1606 1124-Trichlorobenzene ND

291 606 ugSample 112919 1045 120619 1606 1124-Trimethylbenzene ND

582 102 ugSample 112919 1045 120619 1606 112-Dibromo-3-Chloropropane ND

291 384 ugSample 112919 1045 120619 1606 112-Dibromoethane (EDB) ND

582 582 ugSample 112919 1045 120619 1606 112-dichloro-11-difluoroethane ND

291 512 ugSample 112919 1045 120619 1606 112-Dichlorobenzene ND

291 489 ugSample 112919 1045 120619 1606 112-Dichloroethane ND

291 291 ugSample 112919 1045 120619 1606 112-Dichloropropane ND

291 606 ugSample 112919 1045 120619 1606 1135-Trimethylbenzene ND

291 501 ugSample 112919 1045 120619 1606 113-Dichlorobenzene ND

291 326 ugSample 112919 1045 120619 1606 113-Dichloropropane ND

291 582 ugSample 112919 1045 120619 1606 114-Dichlorobenzene ND

582 594 ugSample 112919 1045 120619 1606 11-Chloro-11-difluoroethane ND

582 582 ugSample 112919 1045 120619 1606 122-dichloro-11-difluoroethylmethyl

ether

ND

291 850 ugSample 112919 1045 120619 1606 122-Dichloropropane ND

116 186 ugSample 112919 1045 120619 1606 12-Butanone (MEK) ND

582 862 ugSample 112919 1045 120619 1606 12-chloro-111444-hexafluoro-2-but

ene

ND

582 582 ugSample 112919 1045 120619 1606 12-Chloro-111-Trifluoroethane ND

291 547 ugSample 112919 1045 120619 1606 12-Chlorotoluene ND

116 268 ugSample 112919 1045 120619 1606 12-Hexanone ND

254 254 ugSample 112919 1045 120619 1606 12-MTP as HFPO ND

291 606 ugSample 112919 1045 120619 1606 14-Chlorotoluene ND

291 780 ugSample 112919 1045 120619 1606 14-Isopropyltoluene ND

116 186 ugSample 112919 1045 120619 1606 14-Methyl-2-pentanone (MIBK) ND

116 687 ugSample 112919 1045 120619 1606 1Acetone ND

291 559 ugSample 112919 1045 120619 1606 1Benzene ND

291 408 ugSample 112919 1045 120619 1606 1Bromobenzene ND

291 652 ugSample 112919 1045 120619 1606 1Bromochloromethane ND

291 501 ugSample 112919 1045 120619 1606 1Bromodichloromethane ND

Eurofins TestAmerica Knoxville

12232019Page 18 of 820142

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-3Client Sample ID A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromoform ND 291 885 ugSample 112919 1045 120619 1606 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

582 338 ugSample 112919 1045 120619 1606 1Bromomethane ND

291 722 ugSample 112919 1045 120619 1606 1Carbon disulfide ND

291 384 ugSample 112919 1045 120619 1606 1Carbon tetrachloride ND

850 850 ugSample 112919 1045 120619 1606 1Carbonyl Difluoride ND

291 419 ugSample 112919 1045 120619 1606 1Chlorobenzene ND

291 629 ugSample 112919 1045 120619 1606 1Chlorodibromomethane ND

582 128 ugSample 112919 1045 120619 1606 1Chloroethane ND

291 338 ugSample 112919 1045 120619 1606 1Chloroform ND

582 242 ugSample 112919 1045 120619 1606 1Chloromethane ND

291 233 ugSample 112919 1045 120619 1606 1cis-12-Dichloroethene ND

291 501 ugSample 112919 1045 120619 1606 1cis-13-Dichloropropene ND

291 280 ugSample 112919 1045 120619 1606 1Dibromomethane ND

582 102 ugSample 112919 1045 120619 1606 1Dichlorodifluoromethane ND

291 477 ugSample 112919 1045 120619 1606 1Ethylbenzene ND

291 291 ugSample 112919 1045 120619 1606 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

291 769 ugSample 112919 1045 120619 1606 1Hexachlorobutadiene ND

279 279 ugSample 112919 1045 120619 1606 1HFPO dimer methyl ester as

HFPO-DA

ND

291 408 ugSample 112919 1045 120619 1606 1Isopropylbenzene ND

582 477 ugSample 112919 1045 120619 1606 1mp-Xylene ND

291 186 ugSample 112919 1045 120619 1606 1Methylene Chloride ND

291 140 ugSample 112919 1045 120619 1606 1Naphthalene ND

291 745 ugSample 112919 1045 120619 1606 1n-Butylbenzene ND

291 629 ugSample 112919 1045 120619 1606 1n-Propylbenzene ND

291 303 ugSample 112919 1045 120619 1606 1o-Xylene ND

291 571 ugSample 112919 1045 120619 1606 1sec-Butylbenzene ND

291 629 ugSample 112919 1045 120619 1606 1Styrene ND

291 512 ugSample 112919 1045 120619 1606 1tert-Butylbenzene ND

291 384 ugSample 112919 1045 120619 1606 1Tetrachloroethene ND

291 536 ugSample 112919 1045 120619 1606 1Toluene ND

291 303 ugSample 112919 1045 120619 1606 1trans-12-Dichloroethene ND

291 102 ugSample 112919 1045 120619 1606 1trans-13-Dichloropropene ND

291 210 ugSample 112919 1045 120619 1606 1Trichloroethene ND

582 559 ugSample 112919 1045 120619 1606 1Trichlorofluoromethane ND

582 140 ugSample 112919 1045 120619 1606 1Vinyl chloride ND

Cyclohexane 424 T J N ugSample 442 110-82-7 112919 1045 120619 1606 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1045 120619 1606 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 112919 1045 120619 1606 157 - 152

Dibromofluoromethane (Surr) 104 112919 1045 120619 1606 162 - 134

Toluene-d8 (Surr) 98 112919 1045 120619 1606 171 - 139

Eurofins TestAmerica Knoxville

12232019Page 19 of 820143

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-3Client Sample ID A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 6110 J 6210 3110 ugSample 112919 1045 121319 2235 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2560 1160 ugSample 112919 1045 121819 1401 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1044 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 129 50 - 200 120419 1005 120819 1044 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-4Client Sample ID A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 304 402 ugSample 112919 1045 120619 1631 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

608 608 ugSample 112919 1045 120619 1631 111133-Pentafluorobutane ND

304 438 ugSample 112919 1045 120619 1631 1111-Trichloroethane ND

608 120 ugSample 112919 1045 120619 1631 1111-Trifluoro-22-dichloroethane ND

608 608 ugSample 112919 1045 120619 1631 1111-Trifluoroethane ND

304 584 ugSample 112919 1045 120619 1631 11122-Tetrachloroethane ND

608 341 ugSample 112919 1045 120619 1631 1112-Trichloro-122-trifluoroethane ND

608 608 ugSample 112919 1045 120619 1631 1112-trichloro-1-fluoroethane ND

304 316 ugSample 112919 1045 120619 1631 1112-Trichloroethane ND

608 304 ugSample 112919 1045 120619 1631 111-Dichloro-1-fluoroethane ND

608 608 ugSample 112919 1045 120619 1631 111-dichloro-22-difluoroethane ND

608 608 ugSample 112919 1045 120619 1631 111-dichloro-22-difluoroethene ND

304 365 ugSample 112919 1045 120619 1631 111-Dichloroethane ND

304 450 ugSample 112919 1045 120619 1631 111-Dichloroethene ND

304 329 ugSample 112919 1045 120619 1631 111-Dichloropropene ND

608 608 ugSample 112919 1045 120619 1631 111-Difluoroethene ND

608 608 ugSample 112919 1045 120619 1631 1122-trichloro-11-difluoroethane ND

304 974 ugSample 112919 1045 120619 1631 1123-Trichlorobenzene ND

304 754 ugSample 112919 1045 120619 1631 1123-Trichloropropane ND

304 102 ugSample 112919 1045 120619 1631 1124-Trichlorobenzene ND

304 633 ugSample 112919 1045 120619 1631 1124-Trimethylbenzene ND

608 107 ugSample 112919 1045 120619 1631 112-Dibromo-3-Chloropropane ND

304 402 ugSample 112919 1045 120619 1631 112-Dibromoethane (EDB) ND

608 608 ugSample 112919 1045 120619 1631 112-dichloro-11-difluoroethane ND

304 535 ugSample 112919 1045 120619 1631 112-Dichlorobenzene ND

304 511 ugSample 112919 1045 120619 1631 112-Dichloroethane ND

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12232019Page 20 of 820144

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-4Client Sample ID A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

12-Dichloropropane ND 304 304 ugSample 112919 1045 120619 1631 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

304 633 ugSample 112919 1045 120619 1631 1135-Trimethylbenzene ND

304 523 ugSample 112919 1045 120619 1631 113-Dichlorobenzene ND

304 341 ugSample 112919 1045 120619 1631 113-Dichloropropane ND

304 608 ugSample 112919 1045 120619 1631 114-Dichlorobenzene ND

608 621 ugSample 112919 1045 120619 1631 11-Chloro-11-difluoroethane ND

608 608 ugSample 112919 1045 120619 1631 122-dichloro-11-difluoroethylmethyl

ether

ND

304 888 ugSample 112919 1045 120619 1631 122-Dichloropropane ND

122 195 ugSample 112919 1045 120619 1631 12-Butanone (MEK) ND

608 901 ugSample 112919 1045 120619 1631 12-chloro-111444-hexafluoro-2-but

ene

ND

608 608 ugSample 112919 1045 120619 1631 12-Chloro-111-Trifluoroethane ND

304 572 ugSample 112919 1045 120619 1631 12-Chlorotoluene ND

122 280 ugSample 112919 1045 120619 1631 12-Hexanone ND

266 266 ugSample 112919 1045 120619 1631 12-MTP as HFPO ND

304 633 ugSample 112919 1045 120619 1631 14-Chlorotoluene ND

304 815 ugSample 112919 1045 120619 1631 14-Isopropyltoluene ND

122 195 ugSample 112919 1045 120619 1631 14-Methyl-2-pentanone (MIBK) ND

122 718 ugSample 112919 1045 120619 1631 1Acetone ND

304 584 ugSample 112919 1045 120619 1631 1Benzene ND

304 426 ugSample 112919 1045 120619 1631 1Bromobenzene ND

304 681 ugSample 112919 1045 120619 1631 1Bromochloromethane ND

304 523 ugSample 112919 1045 120619 1631 1Bromodichloromethane ND

304 925 ugSample 112919 1045 120619 1631 1Bromoform ND

608 353 ugSample 112919 1045 120619 1631 1Bromomethane ND

304 754 ugSample 112919 1045 120619 1631 1Carbon disulfide ND

304 402 ugSample 112919 1045 120619 1631 1Carbon tetrachloride ND

894 894 ugSample 112919 1045 120619 1631 1Carbonyl Difluoride ND

304 438 ugSample 112919 1045 120619 1631 1Chlorobenzene ND

304 657 ugSample 112919 1045 120619 1631 1Chlorodibromomethane ND

608 134 ugSample 112919 1045 120619 1631 1Chloroethane ND

304 353 ugSample 112919 1045 120619 1631 1Chloroform ND

608 253 ugSample 112919 1045 120619 1631 1Chloromethane ND

304 243 ugSample 112919 1045 120619 1631 1cis-12-Dichloroethene ND

304 523 ugSample 112919 1045 120619 1631 1cis-13-Dichloropropene ND

304 292 ugSample 112919 1045 120619 1631 1Dibromomethane ND

608 107 ugSample 112919 1045 120619 1631 1Dichlorodifluoromethane ND

304 499 ugSample 112919 1045 120619 1631 1Ethylbenzene ND

304 304 ugSample 112919 1045 120619 1631 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

304 803 ugSample 112919 1045 120619 1631 1Hexachlorobutadiene ND

292 292 ugSample 112919 1045 120619 1631 1HFPO dimer methyl ester as

HFPO-DA

ND

304 426 ugSample 112919 1045 120619 1631 1Isopropylbenzene ND

608 499 ugSample 112919 1045 120619 1631 1mp-Xylene ND

304 195 ugSample 112919 1045 120619 1631 1Methylene Chloride ND

304 146 ugSample 112919 1045 120619 1631 1Naphthalene ND

Eurofins TestAmerica Knoxville

12232019Page 21 of 820145

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-4Client Sample ID A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

n-Butylbenzene ND 304 779 ugSample 112919 1045 120619 1631 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

304 657 ugSample 112919 1045 120619 1631 1n-Propylbenzene ND

304 316 ugSample 112919 1045 120619 1631 1o-Xylene ND

304 596 ugSample 112919 1045 120619 1631 1sec-Butylbenzene ND

304 657 ugSample 112919 1045 120619 1631 1Styrene ND

304 535 ugSample 112919 1045 120619 1631 1tert-Butylbenzene ND

304 402 ugSample 112919 1045 120619 1631 1Tetrachloroethene ND

304 560 ugSample 112919 1045 120619 1631 1Toluene ND

304 316 ugSample 112919 1045 120619 1631 1trans-12-Dichloroethene ND

304 107 ugSample 112919 1045 120619 1631 1trans-13-Dichloropropene ND

304 219 ugSample 112919 1045 120619 1631 1Trichloroethene ND

608 584 ugSample 112919 1045 120619 1631 1Trichlorofluoromethane ND

608 146 ugSample 112919 1045 120619 1631 1Vinyl chloride ND

Cyclohexane 454 T J N ugSample 442 110-82-7 112919 1045 120619 1631 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 118 70 - 160 112919 1045 120619 1631 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 110 112919 1045 120619 1631 157 - 152

Dibromofluoromethane (Surr) 104 112919 1045 120619 1631 162 - 134

Toluene-d8 (Surr) 96 112919 1045 120619 1631 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 4170 J 6490 3250 ugSample 112919 1045 121319 2256 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2680 1220 ugSample 112919 1045 121819 1421 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1047 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 126 50 - 200 120419 1005 120819 1047 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1503 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-5Client Sample ID A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 269 355 ugSample 112919 1045 120619 1655 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

538 538 ugSample 112919 1045 120619 1655 111133-Pentafluorobutane ND

Eurofins TestAmerica Knoxville

12232019Page 22 of 820146

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-5Client Sample ID A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

111-Trichloroethane ND 269 387 ugSample 112919 1045 120619 1655 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

538 106 ugSample 112919 1045 120619 1655 1111-Trifluoro-22-dichloroethane ND

538 538 ugSample 112919 1045 120619 1655 1111-Trifluoroethane ND

269 516 ugSample 112919 1045 120619 1655 11122-Tetrachloroethane ND

538 301 ugSample 112919 1045 120619 1655 1112-Trichloro-122-trifluoroethane ND

538 538 ugSample 112919 1045 120619 1655 1112-trichloro-1-fluoroethane ND

269 280 ugSample 112919 1045 120619 1655 1112-Trichloroethane ND

538 269 ugSample 112919 1045 120619 1655 111-Dichloro-1-fluoroethane ND

538 538 ugSample 112919 1045 120619 1655 111-dichloro-22-difluoroethane ND

538 538 ugSample 112919 1045 120619 1655 111-dichloro-22-difluoroethene ND

269 323 ugSample 112919 1045 120619 1655 111-Dichloroethane ND

269 398 ugSample 112919 1045 120619 1655 111-Dichloroethene ND

269 290 ugSample 112919 1045 120619 1655 111-Dichloropropene ND

538 538 ugSample 112919 1045 120619 1655 111-Difluoroethene ND

538 538 ugSample 112919 1045 120619 1655 1122-trichloro-11-difluoroethane ND

269 860 ugSample 112919 1045 120619 1655 1123-Trichlorobenzene ND

269 667 ugSample 112919 1045 120619 1655 1123-Trichloropropane ND

269 903 ugSample 112919 1045 120619 1655 1124-Trichlorobenzene ND

269 559 ugSample 112919 1045 120619 1655 1124-Trimethylbenzene ND

538 946 ugSample 112919 1045 120619 1655 112-Dibromo-3-Chloropropane ND

269 355 ugSample 112919 1045 120619 1655 112-Dibromoethane (EDB) ND

538 538 ugSample 112919 1045 120619 1655 112-dichloro-11-difluoroethane ND

269 473 ugSample 112919 1045 120619 1655 112-Dichlorobenzene ND

269 452 ugSample 112919 1045 120619 1655 112-Dichloroethane ND

269 269 ugSample 112919 1045 120619 1655 112-Dichloropropane ND

269 559 ugSample 112919 1045 120619 1655 1135-Trimethylbenzene ND

269 462 ugSample 112919 1045 120619 1655 113-Dichlorobenzene ND

269 301 ugSample 112919 1045 120619 1655 113-Dichloropropane ND

269 538 ugSample 112919 1045 120619 1655 114-Dichlorobenzene ND

538 548 ugSample 112919 1045 120619 1655 11-Chloro-11-difluoroethane ND

538 538 ugSample 112919 1045 120619 1655 122-dichloro-11-difluoroethylmethyl

ether

ND

269 785 ugSample 112919 1045 120619 1655 122-Dichloropropane ND

108 172 ugSample 112919 1045 120619 1655 12-Butanone (MEK) ND

538 796 ugSample 112919 1045 120619 1655 12-chloro-111444-hexafluoro-2-but

ene

ND

538 538 ugSample 112919 1045 120619 1655 12-Chloro-111-Trifluoroethane ND

269 505 ugSample 112919 1045 120619 1655 12-Chlorotoluene ND

108 247 ugSample 112919 1045 120619 1655 12-Hexanone ND

235 235 ugSample 112919 1045 120619 1655 12-MTP as HFPO ND

269 559 ugSample 112919 1045 120619 1655 14-Chlorotoluene ND

269 720 ugSample 112919 1045 120619 1655 14-Isopropyltoluene ND

108 172 ugSample 112919 1045 120619 1655 14-Methyl-2-pentanone (MIBK) ND

108 634 ugSample 112919 1045 120619 1655 1Acetone ND

269 516 ugSample 112919 1045 120619 1655 1Benzene ND

269 376 ugSample 112919 1045 120619 1655 1Bromobenzene ND

269 602 ugSample 112919 1045 120619 1655 1Bromochloromethane ND

269 462 ugSample 112919 1045 120619 1655 1Bromodichloromethane ND

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12232019Page 23 of 820147

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-5Client Sample ID A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromoform ND 269 817 ugSample 112919 1045 120619 1655 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

538 312 ugSample 112919 1045 120619 1655 1Bromomethane ND

269 667 ugSample 112919 1045 120619 1655 1Carbon disulfide ND

269 355 ugSample 112919 1045 120619 1655 1Carbon tetrachloride ND

791 791 ugSample 112919 1045 120619 1655 1Carbonyl Difluoride ND

269 387 ugSample 112919 1045 120619 1655 1Chlorobenzene ND

269 581 ugSample 112919 1045 120619 1655 1Chlorodibromomethane ND

538 118 ugSample 112919 1045 120619 1655 1Chloroethane ND

269 312 ugSample 112919 1045 120619 1655 1Chloroform ND

538 224 ugSample 112919 1045 120619 1655 1Chloromethane ND

269 215 ugSample 112919 1045 120619 1655 1cis-12-Dichloroethene ND

269 462 ugSample 112919 1045 120619 1655 1cis-13-Dichloropropene ND

269 258 ugSample 112919 1045 120619 1655 1Dibromomethane ND

538 946 ugSample 112919 1045 120619 1655 1Dichlorodifluoromethane ND

269 441 ugSample 112919 1045 120619 1655 1Ethylbenzene ND

269 269 ugSample 112919 1045 120619 1655 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

269 710 ugSample 112919 1045 120619 1655 1Hexachlorobutadiene ND

258 258 ugSample 112919 1045 120619 1655 1HFPO dimer methyl ester as

HFPO-DA

ND

269 376 ugSample 112919 1045 120619 1655 1Isopropylbenzene ND

538 441 ugSample 112919 1045 120619 1655 1mp-Xylene ND

269 172 ugSample 112919 1045 120619 1655 1Methylene Chloride ND

269 129 ugSample 112919 1045 120619 1655 1Naphthalene ND

269 688 ugSample 112919 1045 120619 1655 1n-Butylbenzene ND

269 581 ugSample 112919 1045 120619 1655 1n-Propylbenzene ND

269 280 ugSample 112919 1045 120619 1655 1o-Xylene ND

269 527 ugSample 112919 1045 120619 1655 1sec-Butylbenzene ND

269 581 ugSample 112919 1045 120619 1655 1Styrene ND

269 473 ugSample 112919 1045 120619 1655 1tert-Butylbenzene ND

269 355 ugSample 112919 1045 120619 1655 1Tetrachloroethene ND

269 495 ugSample 112919 1045 120619 1655 1Toluene ND

269 280 ugSample 112919 1045 120619 1655 1trans-12-Dichloroethene ND

269 946 ugSample 112919 1045 120619 1655 1trans-13-Dichloropropene ND

269 194 ugSample 112919 1045 120619 1655 1Trichloroethene ND

538 516 ugSample 112919 1045 120619 1655 1Trichlorofluoromethane ND

538 129 ugSample 112919 1045 120619 1655 1Vinyl chloride ND

Cyclohexane 436 T J N ugSample 442 110-82-7 112919 1045 120619 1655 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 118 70 - 160 112919 1045 120619 1655 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1045 120619 1655 157 - 152

Dibromofluoromethane (Surr) 103 112919 1045 120619 1655 162 - 134

Toluene-d8 (Surr) 96 112919 1045 120619 1655 171 - 139

Eurofins TestAmerica Knoxville

12232019Page 24 of 820148

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-5Client Sample ID A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine ND 5730 2870 ugSample 112919 1045 121319 2316 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2370 1080 ugSample 112919 1045 121819 1442 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1053 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 125 50 - 200 120419 1005 120819 1053 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1503 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-6Client Sample ID A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 291 384 ugSample 112919 1045 120619 1720 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

582 582 ugSample 112919 1045 120619 1720 111133-Pentafluorobutane ND

291 419 ugSample 112919 1045 120619 1720 1111-Trichloroethane ND

582 115 ugSample 112919 1045 120619 1720 1111-Trifluoro-22-dichloroethane ND

582 582 ugSample 112919 1045 120619 1720 1111-Trifluoroethane ND

291 559 ugSample 112919 1045 120619 1720 11122-Tetrachloroethane ND

582 326 ugSample 112919 1045 120619 1720 1112-Trichloro-122-trifluoroethane ND

582 582 ugSample 112919 1045 120619 1720 1112-trichloro-1-fluoroethane ND

291 303 ugSample 112919 1045 120619 1720 1112-Trichloroethane ND

582 291 ugSample 112919 1045 120619 1720 111-Dichloro-1-fluoroethane ND

582 582 ugSample 112919 1045 120619 1720 111-dichloro-22-difluoroethane ND

582 582 ugSample 112919 1045 120619 1720 111-dichloro-22-difluoroethene ND

291 349 ugSample 112919 1045 120619 1720 111-Dichloroethane ND

291 431 ugSample 112919 1045 120619 1720 111-Dichloroethene ND

291 314 ugSample 112919 1045 120619 1720 111-Dichloropropene ND

582 582 ugSample 112919 1045 120619 1720 111-Difluoroethene ND

582 582 ugSample 112919 1045 120619 1720 1122-trichloro-11-difluoroethane ND

291 931 ugSample 112919 1045 120619 1720 1123-Trichlorobenzene ND

291 722 ugSample 112919 1045 120619 1720 1123-Trichloropropane ND

291 978 ugSample 112919 1045 120619 1720 1124-Trichlorobenzene ND

291 605 ugSample 112919 1045 120619 1720 1124-Trimethylbenzene ND

582 102 ugSample 112919 1045 120619 1720 112-Dibromo-3-Chloropropane ND

291 384 ugSample 112919 1045 120619 1720 112-Dibromoethane (EDB) ND

582 582 ugSample 112919 1045 120619 1720 112-dichloro-11-difluoroethane ND

291 512 ugSample 112919 1045 120619 1720 112-Dichlorobenzene ND

291 489 ugSample 112919 1045 120619 1720 112-Dichloroethane ND

Eurofins TestAmerica Knoxville

12232019Page 25 of 820149

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-6Client Sample ID A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

12-Dichloropropane ND 291 291 ugSample 112919 1045 120619 1720 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

291 605 ugSample 112919 1045 120619 1720 1135-Trimethylbenzene ND

291 501 ugSample 112919 1045 120619 1720 113-Dichlorobenzene ND

291 326 ugSample 112919 1045 120619 1720 113-Dichloropropane ND

291 582 ugSample 112919 1045 120619 1720 114-Dichlorobenzene ND

582 594 ugSample 112919 1045 120619 1720 11-Chloro-11-difluoroethane ND

582 582 ugSample 112919 1045 120619 1720 122-dichloro-11-difluoroethylmethyl

ether

ND

291 850 ugSample 112919 1045 120619 1720 122-Dichloropropane ND

116 186 ugSample 112919 1045 120619 1720 12-Butanone (MEK) ND

582 861 ugSample 112919 1045 120619 1720 12-chloro-111444-hexafluoro-2-but

ene

ND

582 582 ugSample 112919 1045 120619 1720 12-Chloro-111-Trifluoroethane ND

291 547 ugSample 112919 1045 120619 1720 12-Chlorotoluene ND

116 268 ugSample 112919 1045 120619 1720 12-Hexanone ND

254 254 ugSample 112919 1045 120619 1720 12-MTP as HFPO ND

291 605 ugSample 112919 1045 120619 1720 14-Chlorotoluene ND

291 780 ugSample 112919 1045 120619 1720 14-Isopropyltoluene ND

116 186 ugSample 112919 1045 120619 1720 14-Methyl-2-pentanone (MIBK) ND

116 687 ugSample 112919 1045 120619 1720 1Acetone ND

291 559 ugSample 112919 1045 120619 1720 1Benzene ND

291 407 ugSample 112919 1045 120619 1720 1Bromobenzene ND

291 652 ugSample 112919 1045 120619 1720 1Bromochloromethane ND

291 501 ugSample 112919 1045 120619 1720 1Bromodichloromethane ND

291 885 ugSample 112919 1045 120619 1720 1Bromoform ND

582 338 ugSample 112919 1045 120619 1720 1Bromomethane ND

291 722 ugSample 112919 1045 120619 1720 1Carbon disulfide ND

291 384 ugSample 112919 1045 120619 1720 1Carbon tetrachloride ND

850 850 ugSample 112919 1045 120619 1720 1Carbonyl Difluoride ND

291 419 ugSample 112919 1045 120619 1720 1Chlorobenzene ND

291 629 ugSample 112919 1045 120619 1720 1Chlorodibromomethane ND

582 128 ugSample 112919 1045 120619 1720 1Chloroethane ND

291 338 ugSample 112919 1045 120619 1720 1Chloroform ND

582 242 ugSample 112919 1045 120619 1720 1Chloromethane ND

291 233 ugSample 112919 1045 120619 1720 1cis-12-Dichloroethene ND

291 501 ugSample 112919 1045 120619 1720 1cis-13-Dichloropropene ND

291 279 ugSample 112919 1045 120619 1720 1Dibromomethane ND

582 102 ugSample 112919 1045 120619 1720 1Dichlorodifluoromethane ND

291 477 ugSample 112919 1045 120619 1720 1Ethylbenzene ND

291 291 ugSample 112919 1045 120619 1720 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

291 768 ugSample 112919 1045 120619 1720 1Hexachlorobutadiene ND

279 279 ugSample 112919 1045 120619 1720 1HFPO dimer methyl ester as

HFPO-DA

ND

291 407 ugSample 112919 1045 120619 1720 1Isopropylbenzene ND

582 477 ugSample 112919 1045 120619 1720 1mp-Xylene ND

291 186 ugSample 112919 1045 120619 1720 1Methylene Chloride ND

291 140 ugSample 112919 1045 120619 1720 1Naphthalene ND

Eurofins TestAmerica Knoxville

12232019Page 26 of 820150

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-6Client Sample ID A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

n-Butylbenzene ND 291 745 ugSample 112919 1045 120619 1720 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

291 629 ugSample 112919 1045 120619 1720 1n-Propylbenzene ND

291 303 ugSample 112919 1045 120619 1720 1o-Xylene ND

291 570 ugSample 112919 1045 120619 1720 1sec-Butylbenzene ND

291 629 ugSample 112919 1045 120619 1720 1Styrene ND

291 512 ugSample 112919 1045 120619 1720 1tert-Butylbenzene ND

291 384 ugSample 112919 1045 120619 1720 1Tetrachloroethene ND

291 535 ugSample 112919 1045 120619 1720 1Toluene ND

291 303 ugSample 112919 1045 120619 1720 1trans-12-Dichloroethene ND

291 102 ugSample 112919 1045 120619 1720 1trans-13-Dichloropropene ND

291 210 ugSample 112919 1045 120619 1720 1Trichloroethene ND

582 559 ugSample 112919 1045 120619 1720 1Trichlorofluoromethane ND

582 140 ugSample 112919 1045 120619 1720 1Vinyl chloride ND

Tentatively Identified Compound None ugSample 112919 1045 120619 1720 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 119 70 - 160 112919 1045 120619 1720 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1045 120619 1720 157 - 152

Dibromofluoromethane (Surr) 104 112919 1045 120619 1720 162 - 134

Toluene-d8 (Surr) 96 112919 1045 120619 1720 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine ND 6480 3240 ugSample 112919 1045 121319 2337 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2560 1160 ugSample 112919 1045 121819 1503 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1057 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 127 50 - 200 120419 1005 120819 1057 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1503 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-7Client Sample ID A-5786 QC MEOH RBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 203 268 ugSample 112919 1045 120619 1404 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

406 406 ugSample 112919 1045 120619 1404 111133-Pentafluorobutane ND

203 293 ugSample 112919 1045 120619 1404 1111-Trichloroethane ND

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12232019Page 27 of 820151

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-7Client Sample ID A-5786 QC MEOH RBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

111-Trifluoro-22-dichloroethane ND 406 804 ugSample 112919 1045 120619 1404 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

406 406 ugSample 112919 1045 120619 1404 1111-Trifluoroethane ND

203 390 ugSample 112919 1045 120619 1404 11122-Tetrachloroethane ND

406 228 ugSample 112919 1045 120619 1404 1112-Trichloro-122-trifluoroethane ND

406 406 ugSample 112919 1045 120619 1404 1112-trichloro-1-fluoroethane ND

203 211 ugSample 112919 1045 120619 1404 1112-Trichloroethane ND

406 203 ugSample 112919 1045 120619 1404 111-Dichloro-1-fluoroethane ND

406 406 ugSample 112919 1045 120619 1404 111-dichloro-22-difluoroethane ND

406 406 ugSample 112919 1045 120619 1404 111-dichloro-22-difluoroethene ND

203 244 ugSample 112919 1045 120619 1404 111-Dichloroethane ND

203 301 ugSample 112919 1045 120619 1404 111-Dichloroethene ND

203 219 ugSample 112919 1045 120619 1404 111-Dichloropropene ND

406 406 ugSample 112919 1045 120619 1404 111-Difluoroethene ND

406 406 ugSample 112919 1045 120619 1404 1122-trichloro-11-difluoroethane ND

203 650 ugSample 112919 1045 120619 1404 1123-Trichlorobenzene ND

203 504 ugSample 112919 1045 120619 1404 1123-Trichloropropane ND

203 683 ugSample 112919 1045 120619 1404 1124-Trichlorobenzene ND

203 423 ugSample 112919 1045 120619 1404 1124-Trimethylbenzene ND

406 715 ugSample 112919 1045 120619 1404 112-Dibromo-3-Chloropropane ND

203 268 ugSample 112919 1045 120619 1404 112-Dibromoethane (EDB) ND

406 406 ugSample 112919 1045 120619 1404 112-dichloro-11-difluoroethane ND

203 358 ugSample 112919 1045 120619 1404 112-Dichlorobenzene ND

203 341 ugSample 112919 1045 120619 1404 112-Dichloroethane ND

203 203 ugSample 112919 1045 120619 1404 112-Dichloropropane ND

203 423 ugSample 112919 1045 120619 1404 1135-Trimethylbenzene ND

203 349 ugSample 112919 1045 120619 1404 113-Dichlorobenzene ND

203 228 ugSample 112919 1045 120619 1404 113-Dichloropropane ND

203 406 ugSample 112919 1045 120619 1404 114-Dichlorobenzene ND

406 414 ugSample 112919 1045 120619 1404 11-Chloro-11-difluoroethane ND

406 406 ugSample 112919 1045 120619 1404 122-dichloro-11-difluoroethylmethyl

ether

ND

203 593 ugSample 112919 1045 120619 1404 122-Dichloropropane ND

813 130 ugSample 112919 1045 120619 1404 12-Butanone (MEK) ND

406 601 ugSample 112919 1045 120619 1404 12-chloro-111444-hexafluoro-2-but

ene

ND

406 406 ugSample 112919 1045 120619 1404 12-Chloro-111-Trifluoroethane ND

203 382 ugSample 112919 1045 120619 1404 12-Chlorotoluene ND

813 187 ugSample 112919 1045 120619 1404 12-Hexanone ND

177 177 ugSample 112919 1045 120619 1404 12-MTP as HFPO ND

203 423 ugSample 112919 1045 120619 1404 14-Chlorotoluene ND

203 544 ugSample 112919 1045 120619 1404 14-Isopropyltoluene ND

813 130 ugSample 112919 1045 120619 1404 14-Methyl-2-pentanone (MIBK) ND

813 479 ugSample 112919 1045 120619 1404 1Acetone ND

203 390 ugSample 112919 1045 120619 1404 1Benzene ND

203 284 ugSample 112919 1045 120619 1404 1Bromobenzene ND

203 455 ugSample 112919 1045 120619 1404 1Bromochloromethane ND

203 349 ugSample 112919 1045 120619 1404 1Bromodichloromethane ND

203 618 ugSample 112919 1045 120619 1404 1Bromoform ND

406 236 ugSample 112919 1045 120619 1404 1Bromomethane ND

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12232019Page 28 of 820152

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-7Client Sample ID A-5786 QC MEOH RBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Carbon disulfide ND 203 504 ugSample 112919 1045 120619 1404 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

203 268 ugSample 112919 1045 120619 1404 1Carbon tetrachloride ND

596 596 ugSample 112919 1045 120619 1404 1Carbonyl Difluoride ND

203 293 ugSample 112919 1045 120619 1404 1Chlorobenzene ND

203 439 ugSample 112919 1045 120619 1404 1Chlorodibromomethane ND

406 894 ugSample 112919 1045 120619 1404 1Chloroethane ND

203 236 ugSample 112919 1045 120619 1404 1Chloroform ND

406 169 ugSample 112919 1045 120619 1404 1Chloromethane ND

203 163 ugSample 112919 1045 120619 1404 1cis-12-Dichloroethene ND

203 349 ugSample 112919 1045 120619 1404 1cis-13-Dichloropropene ND

203 195 ugSample 112919 1045 120619 1404 1Dibromomethane ND

406 715 ugSample 112919 1045 120619 1404 1Dichlorodifluoromethane ND

203 333 ugSample 112919 1045 120619 1404 1Ethylbenzene ND

203 203 ugSample 112919 1045 120619 1404 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

203 536 ugSample 112919 1045 120619 1404 1Hexachlorobutadiene ND

195 195 ugSample 112919 1045 120619 1404 1HFPO dimer methyl ester as

HFPO-DA

ND

203 284 ugSample 112919 1045 120619 1404 1Isopropylbenzene ND

406 333 ugSample 112919 1045 120619 1404 1mp-Xylene ND

203 130 ugSample 112919 1045 120619 1404 1Methylene Chloride 131 J B

203 975 ugSample 112919 1045 120619 1404 1Naphthalene ND

203 520 ugSample 112919 1045 120619 1404 1n-Butylbenzene ND

203 439 ugSample 112919 1045 120619 1404 1n-Propylbenzene ND

203 211 ugSample 112919 1045 120619 1404 1o-Xylene ND

203 398 ugSample 112919 1045 120619 1404 1sec-Butylbenzene ND

203 439 ugSample 112919 1045 120619 1404 1Styrene ND

203 358 ugSample 112919 1045 120619 1404 1tert-Butylbenzene ND

203 268 ugSample 112919 1045 120619 1404 1Tetrachloroethene ND

203 374 ugSample 112919 1045 120619 1404 1Toluene ND

203 211 ugSample 112919 1045 120619 1404 1trans-12-Dichloroethene ND

203 715 ugSample 112919 1045 120619 1404 1trans-13-Dichloropropene ND

203 146 ugSample 112919 1045 120619 1404 1Trichloroethene ND

406 390 ugSample 112919 1045 120619 1404 1Trichlorofluoromethane ND

406 975 ugSample 112919 1045 120619 1404 1Vinyl chloride ND

Cyclohexane 349 T J N ugSample 442 110-82-7 112919 1045 120619 1404 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 116 70 - 160 112919 1045 120619 1404 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 110 112919 1045 120619 1404 157 - 152

Dibromofluoromethane (Surr) 104 112919 1045 120619 1404 162 - 134

Toluene-d8 (Surr) 97 112919 1045 120619 1404 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine ND 4330 2170 ugSample 112919 1045 121319 2358 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

1790 813 ugSample 112919 1045 121819 1524 20Hydrogen Fluoride ND

Eurofins TestAmerica Knoxville

12232019Page 29 of 820153

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-7Client Sample ID A-5786 QC MEOH RBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 00106 J 00250 000500 ugSample 120419 1005 120819 1100 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 125 50 - 200 120419 1005 120819 1100 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1503 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-8Client Sample ID A-5787 QC MEOH TBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 154 203 ugSample 112919 1045 120619 1428 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

308 308 ugSample 112919 1045 120619 1428 111133-Pentafluorobutane ND

154 222 ugSample 112919 1045 120619 1428 1111-Trichloroethane ND

308 609 ugSample 112919 1045 120619 1428 1111-Trifluoro-22-dichloroethane ND

308 308 ugSample 112919 1045 120619 1428 1111-Trifluoroethane ND

154 295 ugSample 112919 1045 120619 1428 11122-Tetrachloroethane ND

308 172 ugSample 112919 1045 120619 1428 1112-Trichloro-122-trifluoroethane ND

308 308 ugSample 112919 1045 120619 1428 1112-trichloro-1-fluoroethane ND

154 160 ugSample 112919 1045 120619 1428 1112-Trichloroethane ND

308 154 ugSample 112919 1045 120619 1428 111-Dichloro-1-fluoroethane ND

308 308 ugSample 112919 1045 120619 1428 111-dichloro-22-difluoroethane ND

308 308 ugSample 112919 1045 120619 1428 111-dichloro-22-difluoroethene ND

154 185 ugSample 112919 1045 120619 1428 111-Dichloroethane ND

154 228 ugSample 112919 1045 120619 1428 111-Dichloroethene ND

154 166 ugSample 112919 1045 120619 1428 111-Dichloropropene ND

308 308 ugSample 112919 1045 120619 1428 111-Difluoroethene ND

308 308 ugSample 112919 1045 120619 1428 1122-trichloro-11-difluoroethane ND

154 492 ugSample 112919 1045 120619 1428 1123-Trichlorobenzene ND

154 382 ugSample 112919 1045 120619 1428 1123-Trichloropropane ND

154 517 ugSample 112919 1045 120619 1428 1124-Trichlorobenzene ND

154 320 ugSample 112919 1045 120619 1428 1124-Trimethylbenzene ND

308 542 ugSample 112919 1045 120619 1428 112-Dibromo-3-Chloropropane ND

154 203 ugSample 112919 1045 120619 1428 112-Dibromoethane (EDB) ND

308 308 ugSample 112919 1045 120619 1428 112-dichloro-11-difluoroethane ND

154 271 ugSample 112919 1045 120619 1428 112-Dichlorobenzene ND

154 259 ugSample 112919 1045 120619 1428 112-Dichloroethane ND

154 154 ugSample 112919 1045 120619 1428 112-Dichloropropane ND

154 320 ugSample 112919 1045 120619 1428 1135-Trimethylbenzene ND

154 265 ugSample 112919 1045 120619 1428 113-Dichlorobenzene ND

154 172 ugSample 112919 1045 120619 1428 113-Dichloropropane ND

154 308 ugSample 112919 1045 120619 1428 114-Dichlorobenzene ND

308 314 ugSample 112919 1045 120619 1428 11-Chloro-11-difluoroethane ND

308 308 ugSample 112919 1045 120619 1428 122-dichloro-11-difluoroethylmethyl

ether

ND

Eurofins TestAmerica Knoxville

12232019Page 30 of 820154

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-8Client Sample ID A-5787 QC MEOH TBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

22-Dichloropropane ND 154 449 ugSample 112919 1045 120619 1428 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

616 985 ugSample 112919 1045 120619 1428 12-Butanone (MEK) ND

308 455 ugSample 112919 1045 120619 1428 12-chloro-111444-hexafluoro-2-but

ene

ND

308 308 ugSample 112919 1045 120619 1428 12-Chloro-111-Trifluoroethane ND

154 289 ugSample 112919 1045 120619 1428 12-Chlorotoluene ND

616 142 ugSample 112919 1045 120619 1428 12-Hexanone ND

135 135 ugSample 112919 1045 120619 1428 12-MTP as HFPO ND

154 320 ugSample 112919 1045 120619 1428 14-Chlorotoluene ND

154 412 ugSample 112919 1045 120619 1428 14-Isopropyltoluene ND

616 985 ugSample 112919 1045 120619 1428 14-Methyl-2-pentanone (MIBK) ND

616 363 ugSample 112919 1045 120619 1428 1Acetone ND

154 295 ugSample 112919 1045 120619 1428 1Benzene ND

154 215 ugSample 112919 1045 120619 1428 1Bromobenzene ND

154 345 ugSample 112919 1045 120619 1428 1Bromochloromethane ND

154 265 ugSample 112919 1045 120619 1428 1Bromodichloromethane ND

154 468 ugSample 112919 1045 120619 1428 1Bromoform ND

308 178 ugSample 112919 1045 120619 1428 1Bromomethane ND

154 382 ugSample 112919 1045 120619 1428 1Carbon disulfide ND

154 203 ugSample 112919 1045 120619 1428 1Carbon tetrachloride ND

451 451 ugSample 112919 1045 120619 1428 1Carbonyl Difluoride ND

154 222 ugSample 112919 1045 120619 1428 1Chlorobenzene ND

154 332 ugSample 112919 1045 120619 1428 1Chlorodibromomethane ND

308 677 ugSample 112919 1045 120619 1428 1Chloroethane ND

154 178 ugSample 112919 1045 120619 1428 1Chloroform ND

308 128 ugSample 112919 1045 120619 1428 1Chloromethane ND

154 123 ugSample 112919 1045 120619 1428 1cis-12-Dichloroethene ND

154 265 ugSample 112919 1045 120619 1428 1cis-13-Dichloropropene ND

154 148 ugSample 112919 1045 120619 1428 1Dibromomethane ND

308 542 ugSample 112919 1045 120619 1428 1Dichlorodifluoromethane ND

154 252 ugSample 112919 1045 120619 1428 1Ethylbenzene ND

154 154 ugSample 112919 1045 120619 1428 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

154 406 ugSample 112919 1045 120619 1428 1Hexachlorobutadiene ND

148 148 ugSample 112919 1045 120619 1428 1HFPO dimer methyl ester as

HFPO-DA

ND

154 215 ugSample 112919 1045 120619 1428 1Isopropylbenzene ND

308 252 ugSample 112919 1045 120619 1428 1mp-Xylene ND

154 985 ugSample 112919 1045 120619 1428 1Methylene Chloride 101 J B

154 739 ugSample 112919 1045 120619 1428 1Naphthalene ND

154 394 ugSample 112919 1045 120619 1428 1n-Butylbenzene ND

154 332 ugSample 112919 1045 120619 1428 1n-Propylbenzene ND

154 160 ugSample 112919 1045 120619 1428 1o-Xylene ND

154 302 ugSample 112919 1045 120619 1428 1sec-Butylbenzene ND

154 332 ugSample 112919 1045 120619 1428 1Styrene ND

154 271 ugSample 112919 1045 120619 1428 1tert-Butylbenzene ND

154 203 ugSample 112919 1045 120619 1428 1Tetrachloroethene ND

154 283 ugSample 112919 1045 120619 1428 1Toluene ND

154 160 ugSample 112919 1045 120619 1428 1trans-12-Dichloroethene ND

Eurofins TestAmerica Knoxville

12232019Page 31 of 820155

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-8Client Sample ID A-5787 QC MEOH TBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

trans-13-Dichloropropene ND 154 542 ugSample 112919 1045 120619 1428 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

154 111 ugSample 112919 1045 120619 1428 1Trichloroethene ND

308 295 ugSample 112919 1045 120619 1428 1Trichlorofluoromethane ND

308 739 ugSample 112919 1045 120619 1428 1Vinyl chloride ND

Cyclohexane 417 T J N ugSample 442 110-82-7 112919 1045 120619 1428 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 119 70 - 160 112919 1045 120619 1428 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 112919 1045 120619 1428 157 - 152

Dibromofluoromethane (Surr) 105 112919 1045 120619 1428 162 - 134

Toluene-d8 (Surr) 96 112919 1045 120619 1428 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 9720 3280 1640 ugSample 112919 1045 121419 0018 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

1350 616 ugSample 112919 1045 121919 0919 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1103 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 125 50 - 200 120419 1005 120819 1103 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1503 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-9Client Sample ID A-5788 QC MEOH PBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 181 238 ugSample 112919 1045 120619 1453 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

361 361 ugSample 112919 1045 120619 1453 111133-Pentafluorobutane ND

181 260 ugSample 112919 1045 120619 1453 1111-Trichloroethane ND

361 715 ugSample 112919 1045 120619 1453 1111-Trifluoro-22-dichloroethane ND

361 361 ugSample 112919 1045 120619 1453 1111-Trifluoroethane ND

181 347 ugSample 112919 1045 120619 1453 11122-Tetrachloroethane ND

361 202 ugSample 112919 1045 120619 1453 1112-Trichloro-122-trifluoroethane ND

361 361 ugSample 112919 1045 120619 1453 1112-trichloro-1-fluoroethane ND

181 188 ugSample 112919 1045 120619 1453 1112-Trichloroethane ND

361 181 ugSample 112919 1045 120619 1453 111-Dichloro-1-fluoroethane ND

361 361 ugSample 112919 1045 120619 1453 111-dichloro-22-difluoroethane ND

361 361 ugSample 112919 1045 120619 1453 111-dichloro-22-difluoroethene ND

181 217 ugSample 112919 1045 120619 1453 111-Dichloroethane ND

Eurofins TestAmerica Knoxville

12232019Page 32 of 820156

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-9Client Sample ID A-5788 QC MEOH PBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

11-Dichloroethene ND 181 267 ugSample 112919 1045 120619 1453 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

181 195 ugSample 112919 1045 120619 1453 111-Dichloropropene ND

361 361 ugSample 112919 1045 120619 1453 111-Difluoroethene ND

361 361 ugSample 112919 1045 120619 1453 1122-trichloro-11-difluoroethane ND

181 578 ugSample 112919 1045 120619 1453 1123-Trichlorobenzene ND

181 448 ugSample 112919 1045 120619 1453 1123-Trichloropropane ND

181 607 ugSample 112919 1045 120619 1453 1124-Trichlorobenzene ND

181 375 ugSample 112919 1045 120619 1453 1124-Trimethylbenzene ND

361 635 ugSample 112919 1045 120619 1453 112-Dibromo-3-Chloropropane ND

181 238 ugSample 112919 1045 120619 1453 112-Dibromoethane (EDB) ND

361 361 ugSample 112919 1045 120619 1453 112-dichloro-11-difluoroethane ND

181 318 ugSample 112919 1045 120619 1453 112-Dichlorobenzene ND

181 303 ugSample 112919 1045 120619 1453 112-Dichloroethane ND

181 181 ugSample 112919 1045 120619 1453 112-Dichloropropane ND

181 375 ugSample 112919 1045 120619 1453 1135-Trimethylbenzene ND

181 311 ugSample 112919 1045 120619 1453 113-Dichlorobenzene ND

181 202 ugSample 112919 1045 120619 1453 113-Dichloropropane ND

181 361 ugSample 112919 1045 120619 1453 114-Dichlorobenzene ND

361 368 ugSample 112919 1045 120619 1453 11-Chloro-11-difluoroethane ND

361 361 ugSample 112919 1045 120619 1453 122-dichloro-11-difluoroethylmethyl

ether

ND

181 527 ugSample 112919 1045 120619 1453 122-Dichloropropane ND

722 116 ugSample 112919 1045 120619 1453 12-Butanone (MEK) ND

361 534 ugSample 112919 1045 120619 1453 12-chloro-111444-hexafluoro-2-but

ene

ND

361 361 ugSample 112919 1045 120619 1453 12-Chloro-111-Trifluoroethane ND

181 339 ugSample 112919 1045 120619 1453 12-Chlorotoluene ND

722 166 ugSample 112919 1045 120619 1453 12-Hexanone ND

158 158 ugSample 112919 1045 120619 1453 12-MTP as HFPO ND

181 375 ugSample 112919 1045 120619 1453 14-Chlorotoluene ND

181 484 ugSample 112919 1045 120619 1453 14-Isopropyltoluene ND

722 116 ugSample 112919 1045 120619 1453 14-Methyl-2-pentanone (MIBK) ND

722 426 ugSample 112919 1045 120619 1453 1Acetone ND

181 347 ugSample 112919 1045 120619 1453 1Benzene ND

181 253 ugSample 112919 1045 120619 1453 1Bromobenzene ND

181 404 ugSample 112919 1045 120619 1453 1Bromochloromethane ND

181 311 ugSample 112919 1045 120619 1453 1Bromodichloromethane ND

181 549 ugSample 112919 1045 120619 1453 1Bromoform ND

361 209 ugSample 112919 1045 120619 1453 1Bromomethane ND

181 448 ugSample 112919 1045 120619 1453 1Carbon disulfide ND

181 238 ugSample 112919 1045 120619 1453 1Carbon tetrachloride ND

529 529 ugSample 112919 1045 120619 1453 1Carbonyl Difluoride ND

181 260 ugSample 112919 1045 120619 1453 1Chlorobenzene ND

181 390 ugSample 112919 1045 120619 1453 1Chlorodibromomethane ND

361 794 ugSample 112919 1045 120619 1453 1Chloroethane ND

181 209 ugSample 112919 1045 120619 1453 1Chloroform ND

361 150 ugSample 112919 1045 120619 1453 1Chloromethane ND

181 144 ugSample 112919 1045 120619 1453 1cis-12-Dichloroethene ND

181 311 ugSample 112919 1045 120619 1453 1cis-13-Dichloropropene ND

Eurofins TestAmerica Knoxville

12232019Page 33 of 820157

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-9Client Sample ID A-5788 QC MEOH PBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Dibromomethane ND 181 173 ugSample 112919 1045 120619 1453 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

361 635 ugSample 112919 1045 120619 1453 1Dichlorodifluoromethane ND

181 296 ugSample 112919 1045 120619 1453 1Ethylbenzene ND

181 181 ugSample 112919 1045 120619 1453 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

181 477 ugSample 112919 1045 120619 1453 1Hexachlorobutadiene ND

174 174 ugSample 112919 1045 120619 1453 1HFPO dimer methyl ester as

HFPO-DA

ND

181 253 ugSample 112919 1045 120619 1453 1Isopropylbenzene ND

361 296 ugSample 112919 1045 120619 1453 1mp-Xylene ND

181 116 ugSample 112919 1045 120619 1453 1Methylene Chloride 136 J B

181 867 ugSample 112919 1045 120619 1453 1Naphthalene ND

181 462 ugSample 112919 1045 120619 1453 1n-Butylbenzene ND

181 390 ugSample 112919 1045 120619 1453 1n-Propylbenzene ND

181 188 ugSample 112919 1045 120619 1453 1o-Xylene ND

181 354 ugSample 112919 1045 120619 1453 1sec-Butylbenzene ND

181 390 ugSample 112919 1045 120619 1453 1Styrene ND

181 318 ugSample 112919 1045 120619 1453 1tert-Butylbenzene ND

181 238 ugSample 112919 1045 120619 1453 1Tetrachloroethene ND

181 332 ugSample 112919 1045 120619 1453 1Toluene ND

181 188 ugSample 112919 1045 120619 1453 1trans-12-Dichloroethene ND

181 635 ugSample 112919 1045 120619 1453 1trans-13-Dichloropropene ND

181 130 ugSample 112919 1045 120619 1453 1Trichloroethene ND

361 347 ugSample 112919 1045 120619 1453 1Trichlorofluoromethane ND

361 867 ugSample 112919 1045 120619 1453 1Vinyl chloride ND

Cyclohexane 280 T J N ugSample 442 110-82-7 112919 1045 120619 1453 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1045 120619 1453 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 108 112919 1045 120619 1453 157 - 152

Dibromofluoromethane (Surr) 104 112919 1045 120619 1453 162 - 134

Toluene-d8 (Surr) 96 112919 1045 120619 1453 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 2450 J 3850 1930 ugSample 112919 1045 121419 0039 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

1590 722 ugSample 112919 1045 121919 0940 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1106 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 131 50 - 200 120419 1005 120819 1106 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1503 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Eurofins TestAmerica Knoxville

12232019Page 34 of 820158

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17462-1ProjectSite VEN MM-18 Field QC

Method 8260B - Volatile Organic Compounds (GCMS)Prep MeOH Prep

2501112-Tetrachloroethane ugSample

Analyte UnitsMDLRL

0330

50011133-Pentafluorobutane ugSample0500

250111-Trichloroethane ugSample0360

500111-Trifluoro-22-dichloroethane ugSample0990

500111-Trifluoroethane ugSample0500

2501122-Tetrachloroethane ugSample0480

500112-Trichloro-122-trifluoroethane ugSample0280

500112-trichloro-1-fluoroethane ugSample0500

250112-Trichloroethane ugSample0260

50011-Dichloro-1-fluoroethane ugSample250

50011-dichloro-22-difluoroethane ugSample0500

50011-dichloro-22-difluoroethene ugSample0500

25011-Dichloroethane ugSample0300

25011-Dichloroethene ugSample0370

25011-Dichloropropene ugSample0270

50011-Difluoroethene ugSample500

500122-trichloro-11-difluoroethane ugSample0500

250123-Trichlorobenzene ugSample0800

250123-Trichloropropane ugSample0620

250124-Trichlorobenzene ugSample0840

250124-Trimethylbenzene ugSample0520

50012-Dibromo-3-Chloropropane ugSample0880

25012-Dibromoethane (EDB) ugSample0330

50012-dichloro-11-difluoroethane ugSample0500

25012-Dichlorobenzene ugSample0440

25012-Dichloroethane ugSample0420

25012-Dichloropropane ugSample0250

250135-Trimethylbenzene ugSample0520

25013-Dichlorobenzene ugSample0430

25013-Dichloropropane ugSample0280

25014-Dichlorobenzene ugSample0500

5001-Chloro-11-difluoroethane ugSample0510

50022-dichloro-11-difluoroethylmethyl ether ugSample0500

25022-Dichloropropane ugSample0730

1002-Butanone (MEK) ugSample160

5002-chloro-111444-hexafluoro-2-butene ugSample0740

5002-Chloro-111-Trifluoroethane ugSample0500

2502-Chlorotoluene ugSample0470

1002-Hexanone ugSample230

2502-MTP as HFPO ugSample250

2504-Chlorotoluene ugSample0520

2504-Isopropyltoluene ugSample0670

1004-Methyl-2-pentanone (MIBK) ugSample160

100Acetone ugSample590

250Benzene ugSample0480

250Bromobenzene ugSample0350

250Bromochloromethane ugSample0560

250Bromodichloromethane ugSample0430

250Bromoform ugSample0760

500Bromomethane ugSample290

250Carbon disulfide ugSample0620

250Carbon tetrachloride ugSample0330

Eurofins TestAmerica Knoxville

12232019Page 35 of 820159

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17462-1ProjectSite VEN MM-18 Field QC

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)Prep MeOH Prep

100Carbonyl Difluoride ugSample

Analyte UnitsMDLRL

100

250Chlorobenzene ugSample0360

250Chlorodibromomethane ugSample0540

500Chloroethane ugSample110

250Chloroform ugSample0290

500Chloromethane ugSample208

250cis-12-Dichloroethene ugSample0200

250cis-13-Dichloropropene ugSample0430

250Dibromomethane ugSample0240

500Dichlorodifluoromethane ugSample0880

250Ethylbenzene ugSample0410

250Heptafluoropropyl 1222-tetrafluoroethyl ether ugSample250

250Hexachlorobutadiene ugSample0660

250HFPO dimer methyl ester as HFPO-DA ugSample250

250Isopropylbenzene ugSample0350

500mp-Xylene ugSample0410

250Methylene Chloride ugSample160

250Naphthalene ugSample120

250n-Butylbenzene ugSample0640

250n-Propylbenzene ugSample0540

250o-Xylene ugSample0260

250sec-Butylbenzene ugSample0490

250Styrene ugSample0540

250tert-Butylbenzene ugSample0440

250Tetrachloroethene ugSample0330

250Toluene ugSample0460

250trans-12-Dichloroethene ugSample0260

250trans-13-Dichloropropene ugSample0880

250Trichloroethene ugSample0180

500Trichlorofluoromethane ugSample0480

500Vinyl chloride ugSample120

Method 9056 - Anions Ion ChromatographyPrep MeOH Prep

110Hydrogen Fluoride ugSample

Analyte UnitsMDLRL

500

1000Total Fluorine ugSample500

Method 8321A - PFOA and PFOSPrep None

0100HFPO-DA ugSample

Analyte UnitsMDLRL

00200

Eurofins TestAmerica Knoxville

12232019Page 36 of 820160

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

APPENDIX D SAMPLE CALCULATIONS

161

123120191101 AM 112219 Div Stack M0010

EXAMPLE CALCULATIONS FORVOLUMETRIC FLOW AND MOISTURE AND ISOKINETICS

Client Chemours Facility Fayetteville NCTest Number Run 1 Test Date 112219Test Location Division Stack Test Period 0826-1022

1 Volume of dry gas sampled at standard conditions (68 deg F 2992 in Hg) dscf

delta H 1764 x Y x Vm x ( Pb + ------------ )

136Vm(std) = --------------------------------------------

(Tm + 460)

14031764 x 09972 x 63136 x ( 3002 + --------------------- )

136Vm(std) = ------------------------------------------------------------ = 64704

5704 + 460

Where

Vm(std) = Volume of gas sample measured by the dry gas metercorrected to standard conditions dscf

Vm = Volume of gas sample measured by the dry gas meterat meter conditions dcf

Pb = Barometric Pressure in Hgdelt H = Average pressure drop across the orifice meter in H2O

Tm = Average dry gas meter temperature deg FY = Dry gas meter calibration factor

1764 = Factor that includes ratio of standard temperature (528 deg R)to standard pressure (2992 in Hg) deg Rin Hg

136 = Specific gravity of mercury

2 Volume of water vapor in the gas sample corrected to standard conditions scf

Vw(std) = (004707 x Vwc) + (004715 x Wwsg)

Vw(std) = ( 004707 x 100 ) + ( 004715 x 244 ) = 162

Where

Vw(std) = Volume of water vapor in the gas sample corrected tostandard conditions scf

Vwc = Volume of liquid condensed in impingers mlWwsg = Weight of water vapor collected in silica gel g

004707 = Factor which includes the density of water(0002201 lbml) the molecular weight of water(180 lblb-mole) the ideal gas constant2185 (in Hg) (ft3)lb-mole)(deg R) absolutetemperature at standard conditions (528 deg R) absolutepressure at standard conditions (2992 in Hg) ft3ml

004715 = Factor which includes the molecular weight of water(180 lblb-mole) the ideal gas constant2185 (in Hg) (ft3)lb-mole)(deg R) absolutetemperature at standard conditions (528 deg R) absolutepressure at standard conditions (2992 in Hg) and4536 glb ft3g

162

123120191101 AM 112219 Div Stack M0010

3 Moisture content

Vw(std)bws = -------------------------

Vw(std) + Vm(std)

162bws = ------------------------- = 0024

162 + 64704

Where

bws = Proportion of water vapor by volume in the gasstream dimensionless

4 Mole fraction of dry gas

Md = 1 - bws

Md = 1 - 0024 = 0976

Where

Md = Mole fraction of dry gas dimensionless

5 Dry molecular weight of gas stream lblb-mole

MWd = ( 0440 x CO2 ) + ( 0320 x O2 ) + ( 0280 x ( N2 + CO) )

MWd = ( 0440 x 00 ) + ( 0320 x 209 ) + (0280 x ( 791 + 000 ))

MWd = 2884

Where

MWd = Dry molecular weight lblb-mole CO2 = Percent carbon dioxide by volume dry basis

O2 = Percent oxygen by volume dry basis N2 = Percent nitrogen by volume dry basis

CO = Percent carbon monoxide by volume dry basis0440 = Molecular weight of carbon dioxide divided by 1000320 = Molecular weight of oxygen divided by 1000280 = Molecular weight of nitrogen or carbon monoxide

divided by 100

6 Actual molecular weight of gas stream (wet basis) lblb-mole

MWs = ( MWd x Md ) + ( 18 x ( 1 - Md ))

MWs = ( 2884 x 0976 ) +( 18 ( 1 - 0976 )) = 2857

Where

MWs = Molecular weight of wet gas lblb-mole18 = Molecular weight of water lblb-mole

163

123120191101 AM 112219 Div Stack M0010

7 Average velocity of gas stream at actual conditions ftsec

Ts (avg)Vs = 8549 x Cp x ((delt p)12)avg x ( ---------------- )12

Ps x MWs

532Vs = 8549 x 084 x 145039 x ( -------------------- )^12 = 820

2999 x 2857Where

Vs = Average gas stream velocity ftsec (lblb-mole)(in Hg)12

8549 = Pitot tube constant ftsec x ------------------------------------ (deg R)(in H2O)

Cp = Pitot tube coefficient dimensionlessTs = Absolute gas stream temperature deg R = Ts deg F + 460

P(static)Ps = Absolute gas stack pressure in Hg = Pb + --------------

136delt p = Velocity head of stack in H2O

8 Average gas stream volumetric flow rate at actual conditions wacfmin

Qs(act) = 60 x Vs x As

Qs(act) = 60 x 820 x 707 = 34799

Where

Qs(act) = Volumetric flow rate of wet stack gas at actualconditions wacfmin

As = Cross-sectional area of stack ft260 = Conversion factor from seconds to minutes

9 Average gas stream dry volumetric flow rate at standard conditions dscfmin

PsQs(std) = 1764 x Md x ----- x Qs(act)

Ts

2999Qs(std) = 1764 x 0976 x -------------------- x 34799

5316

Qs(std) = 33787

Where

Qs(std) = Volumetric flow rate of dry stack gas at standardconditions dscfmin

164

123120191101 AM 112219 Div Stack M0010

10 Isokinetic variation calculated from intermediate values percent

17327 x Ts x Vm(std)I = -----------------------------------

Vs x O x Ps x Md x (Dn)2

17327 x 532 x 64704I = -------------------------------------------------- = 1010

820 x 96 x 2999 x 0976 x (0160)^2Where

I = Percent of isokinetic samplingO = Total sampling time minutes

Dn = Diameter of nozzle inches17327 = Factor which includes standard temperature (528 deg R)

standard pressure (2992 in Hg) the formula forcalculating area of circle D24 conversion of squarefeet to square inches (144) conversion of secondsto minutes (60) and conversion to percent (100)(in Hg)(in2)(min) (deg R)(ft2)(sec)

165

1320201218 PM 112219 Div Stack M0010

SAMPLE CALCULATIONS FORHFPO DIMER ACID (METHOD 0010)

Client Chemours Plant Fayetteville NCTest Number Run 1 Test Date 112219Test Location Divison Stack Test Period 0826-1022

1 HFPO Dimer Acid concentration lbsdscf

W x 22046 x 10-9

Conc1 = ------------------------------ Vm(std)

223 x 22046 x 10-9Conc1 = ------------------------------

64704

Conc1 = 760E-10

Where

W = Weight of HFPO Dimer Acid collected in sample in ug

Conc1 = Division Stack HFPO Dimer Acid concentration lbsdscf

22046x10-9 = Conversion factor from ug to lbs

2 HFPO Dimer Acid concentration ugdscm

Conc2 = W ( Vm(std) x 002832)

Conc2 = 223 ( 64704 x 002832 )

Conc2 = 122E+01

Where

Conc2 = Division Stack HFPO Dimer Acid concentration ugdscm

002832 = Conversion factor from cubic feet to cubic meters

166

1320201218 PM 112219 Div Stack M0010

3 HFPO Dimer Acid mass emission rate lbshr

MR1(Outlet) = Conc1 x Qs(std) x 60 minhr

MR1(Outlet) = 760E-10 x 33787 x 60

MR1(Outlet) = 154E-03

Where

MR1(Outlet) = Division Stack HFPO Dimer Acid mass emission rate lbshr

4 HFPO Dimer Acid mass emission rate gsec

MR2(Outlet) = PMR1 x 45359 3600

MR2(Outlet) = 154E-03 x 45359 3600

MR2(Outlet) = 194E-04

Where

MR2(Outlet) = Division Stack HFPO Dimer Acid mass emission rate gsec

4536 = Conversion factor from pounds to grams

3600 = Conversion factor from hours to seconds

167

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

APPENDIX E EQUIPMENT CALIBRATION RECORDS

168

P-694 all in oneMOD

Pitot Tube Identification Number

Inspection Date 21919 Individual Conducting Inspection

Distance to A Plane (PA) - inches 046 PASSDistance to B Plane (PB) - inches 046 PASS

Pitot OD (Dt) - inches 0375105 Dt lt P lt 15 Dt PA must Equal PB

Q1 and Q2 must be lt 10o

B1 or B2 must be lt 5o

Z must be lt 0125 inches

W must be lt 003125 inches

X must be gt 075 inches

Thermocouple meets the Distance Criteria in the adjacent figure

Impact Pressure Opening Plane is above the Nozzle Entry Plane

NO

NA

NO

NA

PASS

PASS

PASS

Distance between Sample Nozzle and Pitot (X) - inches

Thermocouple meets the Distance Criteria in the adjacent figure

YES

YES

PASS

NO YES

NA

0

0

Angle of B1 from vertical A Tube- degrees (absolute) 0

0

08

Horizontal offset between A and B Tubes (Z) - inches

Vertical offset between A and B Tubes (W) - inches

0004

0015

PASSFAIL

Angle of B1 from vertical B Tube- degrees (absolute)

PASS

PASS

PASS

P-694

ks

Angle of Q1 from vertical A Tube- degrees (absolute)

Angle of Q2 from vertical B Tube- degrees (absolute)

Type S Pitot Tube Inspection Data Form

Are Open Faces Aligned Perpendicular to the Tube Axis

YES NOPASS

If all Criteria PASS Cp is equal to 084

Sample Probe

Type S Pitot Tube

Temperature Sensor

Dt

2 inch

Sample Probe

Temperature Sensor

DtType S Pitot Tube

3 inch

34 inch

A B

Face Opening Planes

AB

AB

Q1 Q1 Q2

B B

B

A A

A

FlowFlow

B1(+)B1(-)

B2(+ or -)

B1(+ or -)

B-Side Plane

AB

PA

PB

A-Side PlaneDt

X

Sampling D

Impact Pressure Opening Plane

Nozzle Entry Plane

W

B

A

B

A

Z

169

Long Cal Box_30 2-21-19

Calibrator MDW Meter Box Number 30 Ambient Temp 72

Date 21-Feb-19 Wet Test Meter Number P-2952 Temp Reference Source

Dry Gas Meter Number 17485131

Setting

in H20

(∆H) ft3

(Vw)ft3

(Vd)

oF (Tw)

Outlet oF (Tdo)

Inlet oF (Tdi)

Average oF (Td)

Time min (O)

Y ∆H

905750 7000 7000910724 7000 7000

4974 7000 7000911701 7100 7100916685 7100 7100

4984 7100 7100917680 7200 7200927695 7400 740010015 7300 7300

928690 7400 7400938780 7500 750010090 7450 7450

939800 7600 7600949930 7700 770010130 7650 7650

Average 09972 18715

Vw - Gas Volume passing through the wet test meter 0 - Time of calibration runVd - Gas Volume passing through the dry gas meter Pb - Barometric PressureTw - Temp of gas in the wet test meterTdi - Temp of the inlet gas of the dry gas meterTdo - Temp of the outlet gas of the dry gas meterTd - Average temp of the gas in the dry gas meter

1 2 3 4 5 632 32 32 32 32 320 00

212 213 213 212 212 2124 -01932 933 933 932 932 9324 00

1832 1832 1832 1832 1832 18320 001 - Channel Temps must agree with +- 5oF or 3oC

2 - Acceptable Temperature Difference less than 15

20 100

18501128 10002

Dry Gas Meter

700

05 700

10

Long Cal and Temperature Cal Datasheet for Standard Dry Gas Meter Console

Orifice Manometer

Wet Test Meter

Dry gas Meter

Gas Volume

1822450 700 700 90

Y - Ratio of accuracy of wet test meter to dry gas meter

∆H - Pressure differential across orifice

30 100 700

TemperaturesWet Test

Meter

680

15 100

10007

50

700

107 09910

725

745

18894

18851130 09946

150 09995

9321832

Reference Temperature

Select Temperature

oC oF

21232

Average Temperature

Reading

Thermocouple Simulator

(Accuracy +- 1oF)

Temp

Difference 2

()

Temperature Reading from Individual Thermocouple Input 1

Channel Number

19103

Calibration Results

Baro Press in Hg ( Pb)

2987

760

( ) ( )

( )( ) 2

Vw

O460tw

460tdPb

H03170H

460tw613

HPbVd

)460td(PbVwY

lowast+

lowast

+lowast

∆lowast=∆

+lowast

+lowast

+lowastlowast=

( )( ) ( )( )( )

+

+minus+=

460FTempferenceRe

460FTempTest460FTempferenceReDiffTemp

o

oo

170

Y Factor Calibration Check CalculationMODIFIED METHOD 0010 TEST TRAIN

DIVISION STACKMETER BOX NO 30

11222019Run 1 Run 2

MWd = Dry molecular weight source gas lblb-mole032 = Molecular weight of oxygen divided by 100044 = Molecular weight of carbon dioxide divided by 100028 = Molecular weight of nitrogen or carbon monoxide divided by 100

CO2 = Percent carbon dioxide by volume dry basis 00 00 O2 = Percent oxygen by volume dry basis 209 209

MWd = ( 032 O2 ) + ( 044 CO2 ) + ( 028 ( 100 - ( CO2 + O2 )))

MWd = ( 032 209 ) + ( 044 0 ) + ( 028 ( 100 - ( 0 + 209 )))

MWd = ( 669 ) + ( 000 ) + ( 2215 )

MWd = 2884 2884

Tma = Source Temperature absolute(oR)Tm = Average dry gas meter temperature deg F 570 652

Tma = Ts + 460

Tma = 5704 + 460

Tma = 51704 52519

Ps = Absolute meter pressure inches Hg1360 = Specific gravity of mercury

delta H = Avg pressure drop across the orifice meter during sampling in H2O 140 100Pb = Barometric Pressure in Hg 3002 3002

Pm = Pb + (delta H 136)

Pm = 3002 + ( 14025 136)

Pm = 3012 3009

Yqa = dry gas meter calibration check value dimensionless003 = (2992528)(075)2 (in HgdegR) cfm2

2900 = dry molecular weight of air lblb-moleVm = Volume of gas sample measured by the dry gas meter at meter conditions dcf 63136 47088

Y = Dry gas meter calibration factor (based on full calibration) 09972 09972Delta H = Dry Gas meter orifice calibration coefficient in H2O 18715 18715

avg SQRT Delta H = Avg SQRT press drop across the orifice meter during sampling in H2O 11783 09984O = Total sampling time minutes 96 84

Yqa = (O Vm ) SQRT ( 00319 Tma 29 ) ( Delta H Pm MWd ) avg SQRT Delta H

Yqa = ( 9600 6314 ) SQRT ( 00319 51704 29 ) ( 187 3012 2884 ) 118

Yqa = 1521 SQRT 478315 1625473 118

Yqa = 09719 09742

Diff = Absolute difference between Yqa and Y 254 231

Diff = (( Y - Yqa ) Y ) 100

Diff = (( 09972 - 0972 ) 09972 ) 100

Average Diff = 243

Allowable = 50

1220201119 AM 112219 Div Stack M0010171

Long Cal Vost Box 5 11-29-18

Calibrator PM VOST Box Number VOST 5 Ambient Temp 72

Date 29-Nov-18 Wet Test Meter Number 10BB-1 Temp Reference Source

Dry Gas Meter Number 3605443

Resultsin H20

(∆H)liters (Vw)

liters (Vd)

oF (Tw)

Outlet oC (Tdo)

Inlet oC (Tdi)

Average oF (Td)

Time min (O)

Y

0000 2000 20004890 2050 20504890 2025 21600000 2050 20509772 2100 21009772 2075 22800000 2220 222014768 2220 222014768 2220 22200000 2280 228020034 2280 228020034 2280 2280

Average 10088

Vw - Gas Volume passing through the wet test meter 0 - Time of calibration runVd - Gas Volume passing through the dry gas meter Pb - Barometric PressureTw - Temp of gas in the wet test meterTdi - Temp of the inlet gas of the dry gas meter

Tdo - Temp of the outlet gas of the dry gas meterTd - Average temp of the gas in the dry gas meter

oC oF1 2 3 4 5 60 0 0 0 00 00

100 100 100 100 1000 00500 500 500 500 5000 001000 1000 1000 1000 10000 00

1 - Channel Temps must agree with +- 5oF or 3oC

2 - Acceptable Temperature Difference less than 15

Wet Test Meter

Dry gas MeterWet Test

Meter

Gas Volume

50045 725

10154

685 102 10137

695085 100

2975

730 200 09943

110 10118

100

720

Dry Gas Meter

Temperatures

20 200

725

725

150 72515 17

Setting

Roto-meter

Liters per minute

12

Orifice Manometer

120

Long Cal and Temperature Cal Datasheet for VOST Dry Gas Meter Console

∆H - Pressure differential across orifice

Y - Ratio of accuracy of wet test meter to dry gas meter

Thermocouple Simulator

(Accuracy +- 1oF)

Baro Press in Hg ( Pb)

20 23

050 070

100

Temp

Difference 2 ()

Average Temperature

Reading

0

500100

1000

Channel Number

Temperature Reading from Individual Thermocouple Input 1

Select Temperature

Reference Temperature

( ) ( )

( )( ) 2

Vw

O460tw

460tdPb

H03170H

460tw613

HPbVd

)460td(PbVwY

lowast+

lowast

+lowast∆lowast

=∆

+lowast

+lowast

+lowastlowast=

( )( ) ( )( )( )

+

+minus+=

460FTempferenceRe

460FTempTest460FTempferenceReDiffTemp

o

oo

172

Long Cal Vost Box 8 9_21_2019

Calibrator MDW VOST Box Number VOST 8 Ambient Temp 73

Date 21-Sep-19 Wet Test Meter Number 10BB-1 Temp Reference Source

Dry Gas Meter Number 3602380

Resultsin H20

(∆H)liters (Vw)

liters (Vd)

oF (Tw)

Outlet oC (Tdo)

Inlet oC (Tdi)

Average oF (Td)

Time min (O)

Y

0000 2400 24002999 2400 24002999 2400 24000000 2400 24008960 2400 24008960 2400 24000000 2400 24009934 2400 24009934 2400 24000000 2400 240018700 2400 240018700 2400 2400

Average 10088

Vw - Gas Volume passing through the wet test meter 0 - Time of calibration runVd - Gas Volume passing through the dry gas meter Pb - Barometric PressureTw - Temp of gas in the wet test meterTdi - Temp of the inlet gas of the dry gas meter

Tdo - Temp of the outlet gas of the dry gas meterTd - Average temp of the gas in the dry gas meter

oC oF1 2 3 4 5 632 32 32 32 320 00212 212 212 212 2120 00932 932 932 932 9320 001829 1829 1829 1829 18290 01

1 - Channel Temps must agree with +- 5oF or 3oC

2 - Acceptable Temperature Difference less than 15

Wet Test Meter

Dry gas MeterWet Test

Meter

Gas Volume

30000 720

10093

750 118 10060

750035 90

3008

710 99 10099

100 10099

178

750

Dry Gas Meter

Temperatures

170 190

720

720

100 720

050

10 10

Setting

Roto-meter

Liters per minute

100

Orifice Manometer

050

1832

Long Cal and Temperature Cal Datasheet for VOST Dry Gas Meter Console

∆H - Pressure differential across orifice

Y - Ratio of accuracy of wet test meter to dry gas meter

Thermocouple Simulator

(Accuracy +- 1oF)

Baro Press in Hg ( Pb)

20 20

025 025

Channel Number

Temperature Reading from Individual Thermocouple Input 1 Temp

Difference 2 ()

Average Temperature

Reading

32

932212

Select Temperature

Reference Temperature

( ) ( )

( )( ) 2

Vw

O460tw

460tdPb

H03170H

460tw613

HPbVd

)460td(PbVwY

lowast+

lowast

+lowast∆lowast

=∆

+lowast

+lowast

+lowastlowast=

( )( ) ( )( )( )

+

+minus+=

460FTempferenceRe

460FTempTest460FTempferenceReDiffTemp

o

oo

173

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

APPENDIX F LIST OF PROJECT PARTICIPANTS

174

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

The following WESTON employees participated in this project

Paul Meeter Senior Project Manager

Jeff OrsquoNeill Senior Project Manager

Wes Fritz Senior Project Manager

Matt Winkeler Team Member

Kyle Schweitzer Team Member

Brandon Berger Team Member

175

  • ADPB5DBtmp
    • FIELD DATA CALCS
    • SemiVol Results
      • ADPD0DEtmp
        • Data input
        • results
          • ADP152tmp
            • SEMIVOLCALC
              • ADPD8Ftmp
                • Data input
                • results
                  • ADP2D63tmp
                    • results
                      • ADP5868tmp
                        • Data input
                          • ADPE9F3tmp
                            • results
                              • ADP2499tmp
                                • Data input
                                • results
                                  • ADP6F7Etmp
                                    • Data input
                                    • results

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 ii

LIST OF FIGURES

Title Page

Figure 4-1 Division Stack Test Port and Traverse Point Location 8

Figure 5-1 EPA Method 0010 Sampling Train 10

Figure 5-2 HFPO Dimer Acid Sample Recovery Procedures for Method 0010 14

Figure 5-3 Modified EPA Method 18 Sampling Train 16

Figure 5-4 WESTON Sampling System 18

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 iii

LIST OF TABLES

Title Page

Table 1-1 Sampling Plan for Division Stack 3

Table 2-1 Summary of HFPO Dimer Acid Division Stack Test Results 4

Table 2-2 Summary of Target Compound Division Stack Test Results 4

Table 6-1 Summary of HFPO Dimer Acid Test Data and Test Results Division Stack ndash M0010

Runs 1 and 2 20

Table 6-2 Summary of Target Compound Test Data and Test Results Division Stack ndash MM18

Runs 1 2 and 3 22

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 1

1 INTRODUCTION

11 FACILITY AND BACKGROUND INFORMATION

The Chemours Fayetteville Works (Chemours) is located in Bladen County North Carolina

approximately 10 miles south of the city of Fayetteville Chemours operating areas on the site

include the Fluoromonomers IXM and Polymers Processing Aid (PPA) manufacturing areas

Wastewater Treatment and Powerhouse

Chemours contracted Weston Solutions Inc (Weston) to perform HFPO Dimer Acid Fluoride

captured as HFPO Dimer Acid and other target compound emission testing on the Division

stack at the facility Testing was performed on 22 November and 4 December 2019 and generally

followed the ldquoEmission Test Protocolrdquo reviewed and approved by the North Carolina

Department of Environmental Quality (NCDEQ) This report provides the results from the

emission test program

12 TEST OBJECTIVES

The specific objectives for this test program were as follows

Measure the emissions concentrations and mass emissions rates of HFPO Dimer Acid Fluoride and other target compounds from the Division stack which is located in the Fluoromonomers process area

Monitor and record process and emissions control data in conjunction with the test program

Provide representative emissions data

13 TEST PROGRAM OVERVIEW

During the emissions test program the concentrations and mass emissions rates of HFPO Dimer

Acid and other target compounds were measured at the Division stack

Table 1-1 provides a summary of the test location and the parameters that were measured along

with the samplinganalytical procedures that were followed

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 2

Section 2 provides a summary of test results A description of the processes is provided in

Section 3 Section 4 provides a description of the test locations The sampling and analytical

procedures are provided in Section 5 Detailed test results and discussion are provided in

Section 6

Appendix C includes the summary reports for the laboratory analytical results The full

laboratory data packages are provided in electronic format

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 4

2 SUMMARY OF TEST RESULTS

A total of three MM18 and two M0010 test runs were performed on the Division stack Table 2-1

provides a summary of the HFPO Dimer Acid emissions test results associated with M0010

Table 2-2 provides a summary of the target compound emissions test results associated with

MM18 Detailed test results summaries are provided in Section 6

It is important to note that emphasis is being placed on the characterization of the emissions

based on the M0010 stack test results Research conducted in developing the protocol for stack

testing HFPO Dimer Acid Fluoride HFPO Dimer Acid Ammonium Salt and HFPO Dimer Acid

realized that the resulting testing including collection of the air samples and extraction of the

various fraction of the sampling train would result in all three compounds being expressed as

simply the HFPO Dimer Acid However it should be understood that the total M0010 HFPO

Dimer Acid results provided in Table 2-1 and in this report include a percentage of each of the

three compounds

Table 2-1 Summary of M0010 HFPO Dimer Acid Division Stack Test Results

Division Stack ndash M0010 gsec lbhr

R1 194E-04 154E-03 R2 339E-04 269E-03 Average 266E-04 212E-03

Samples taken using MM18 were analyzed for the following volatile organic compounds (ldquotarget

compoundsrdquo) HFPO Dimer Methyl Ester as HFPO (HFPO Dimer Methyl Ester) 2-MTP as

HFPO (HFPO Monomer) Heptafluoropropyl 1222-tetrafluoroethyl ether (Fluoroether E-1)

Carbonyl Difluoride Total Fluorine and Hydrogen Fluoride Results of MM18 target compound

analysis are provided in Table 2-2

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 5

Table 2-2 Summary of MM18 Target Compound Division Stack Test Results

Target Compound

Division Stack MM18 Run 1

Division Stack MM18 Run 2

Division Stack MM18 Run 3

gsec lbhr gsec lbhr gsec lbhr HFPO Dimer Methyl Ester

lt438E-03 lt348E-02 lt260E-03 lt207E-02 lt263E-03 lt209E-02

HFPO Monomer

374E-01 297E+00 315E-01 250E+00 192E+00 153E+01

Fluoroether E-1

291E-02 231E-01 667E-02 530E-01 241E-02 192E-01

Carbonyl Difluoride

lt134E-02 lt106E-01 lt796E-03 lt633E-02 lt803E-03 lt638E-02

Total Fluorine

727E+00 578E+01 594E+00 472E+01 140E+01 111E+02

Hydrogen Fluoride

lt182E-01 lt145E+00 lt109-01 lt863E-01 lt110E-01 lt870E-01

Note All lt values were below the laboratory analysis detection limits Emission rates were calculated using the method detection limit (MDL) for the first analytical fraction of the target compound

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 6

3 PROCESS DESCRIPTIONS

The Fluoromonomers area is included in the scope of this test program

31 FLUOROMONOMERS

These facilities produce a family of fluorocarbon compounds used to produce Chemours

products such as Nafionreg Krytoxreg and Vitonreg as well as sales to outside customers

At the time of testing process emissions were vented to the Division waste gas scrubber system

(which included the secondary scrubber) and vented to the Carbon Bed and then into the

Division stack The VE North building air systems were vented to the Carbon Bed and then into

the Division stack

32 PROCESS OPERATIONS AND PARAMETERS

The following table is a summary of the operation and products from the specific areas tested

Source OperationProduct Batch or Continuous VE North

PPVE Condensation is continuous Agitated Bed Reactor and Refining are batch

During the test program the following parameters were monitored by Chemours and are

included in Appendix A

Fluoromonomers Process o VEN Precurser Rate o VEN Condensation Rate o VEN ABR Rate

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 7

4 DESCRIPTION OF TEST LOCATIONS

41 DIVISION STACK

Two 6-inch ID test ports were installed on the 36-inch ID fiberglass stack as shown below The

four vents that enter the top of the stack and the one vent ~11 feet below are catch pots which

under normal process operations do not discharge to the stack They are used to vent process gas

to the stack in the event of a process upset and are not considered a flow contributor or a

disturbance

Per EPA Method 1 a total of 12 traverse points (six per axis) were used for M-0010 isokinetic

sampling Figure 4-1 provides a schematic of the test ports and traverse point locations

Location Distance from Flow Disturbance Downstream (B) Upstream (A)

Division Stack 30 feet gt 10 duct diameters

9 feet gt 3 diameters

The EPA Method 18 sample was collected at a constant rate at a single point at the approximate

center of the stack

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 9

5 SAMPLING AND ANALYTICAL METHODS

51 STACK GAS SAMPLING PROCEDURES

The purpose of this section is to describe the stack gas emissions sampling trains and to provide

details of the stack sampling and analytical procedures utilized during the emissions test

program

511 Pre-Test Determinations

Preliminary test data were obtained at the test location Stack geometry measurements were

measured and recorded and traverse point distances verified A preliminary velocity traverse

was performed utilizing a calibrated S-type pitot tube and an inclined manometer to determine

velocity profiles Flue gas temperatures were observed with a calibrated direct readout panel

meter equipped with a chromel-alumel thermocouple Preliminary water vapor content was

estimated by wet bulbdry bulb temperature measurements

A check for the presence or absence of cyclonic flow was previously conducted at the test

location The cyclonic flow check was negative (lt 20deg) verifying that the test location was

acceptable for testing

Preliminary test data was used for nozzle sizing and sampling rate determinations for isokinetic

sampling procedures

Calibration of probe nozzles pitot tubes metering systems and temperature measurement

devices was performed as specified in Section 5 of EPA Method 5 test procedures

52 STACK PARAMETERS

521 EPA Method 0010

The sampling train utilized to perform the HFPO Dimer Acid sampling at the location was an

EPA Method 0010 train (see Figure 5-1) The Method 0010 consisted of a borosilicate nozzle

that attached directly to a heated borosilicate probe In order to minimize possible thermal

degradation of the HFPO Dimer Acid the probe and particulate filter were heated above stack

temperature to minimize water vapor condensation before the filter The probe was connected

directly to a heated borosilicate filter holder containing a solvent extracted glass fiber filter

18

10

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 11

A section of borosilicate glass or flexible polyethylene tubing connected the filter holder exit to a

Grahm (spiral) type ice water-cooled condenser an ice water-jacketed sorbent module containing

approximately 40 grams of XAD-2 resin The XAD-2 resin tube was equipped with an inlet

temperature sensor The XAD-2 resin trap was followed by a condensate knockout impinger and

a series of two impingers that contained 100 mL of high-purity distilled water The train also

included a second XAD-2 resin trap behind the impinger section to evaluate possible sampling

train breakthrough Each XAD-2 resin trap was connected to a 1-liter condensate knockout trap

The final impinger contained 300 grams of dry pre-weighed silica gel All impingers and the

condensate traps were maintained in an ice bath Ice water was continuously circulated in the

condenser and the XAD-2 module to maintain method-required temperature A control console

with a leakless vacuum pump a calibrated orifice and dual inclined manometers was connected

to the final impinger via an umbilical cord to complete the sample train

HFPO Dimer Acid Fluoride (CAS No 2062-98-8) that is present in the stack gas is expected to

be captured in the sampling train along with HFPO Dimer Acid (CAS No 13252-13-6) HFPO

Dimer Acid Fluoride underwent hydrolysis instantaneously in water in the sampling train and

during the sample recovery step and was converted to HFPO Dimer Acid such that the amount

of HFPO Dimer Acid emissions represented a combination of both HFPO Dimer Acid Fluoride

and HFPO Dimer Acid

During sampling gas stream velocities were measured by attaching a calibrated S-type pitot tube

into the gas stream adjacent to the sampling nozzle The velocity pressure differential was

observed immediately after positioning the nozzle at each traverse point and the sampling rate

adjusted to maintain isokineticity at 100 plusmn 10 Flue gas temperature was monitored at each

point with a calibrated panel meter and thermocouple Isokinetic test data was recorded at each

traverse point during all test periods as appropriate Leak checks were performed on the

sampling apparatus according to reference method instructions prior to and following each run

component change (if required) or during midpoint port changes

522 EPA Method 0010 Sample Recovery

At the conclusion of each test the sampling train was dismantled the openings sealed and the

components transported to the field laboratory trailer for recovery

A consistent procedure was employed for sample recovery

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 12

1 The two XAD-2 covered (to minimize light degradation) sorbent modules (1 and 2) weresealed and labeled

2 The glass fiber filter(s) were removed from the holder with tweezers and placed in apolyethylene container along with any loose particulate and filter fragments

3 The particulate adhering to the internal surfaces of the nozzle probe and front half of thefilter holder were rinsed with a solution of methanol and ammonium hydroxide into apolyethylene container while brushing a minimum of three times until no visibleparticulate remained Particulate adhering to the brush was rinsed with methanolammonium hydroxide into the same container The container was sealed

4 The volume of liquid collected in the first condensate trap was measured the valuerecorded and the contents poured into a polyethylene container

5 All train components between the filter exit and the first condensate trap were rinsed withmethanolammonium hydroxide The solvent rinse was placed in a separate polyethylenecontainer and sealed

6 The volume of liquid in impingers one and two and the second condensate trap weremeasured the values recorded and the sample was placed in the same container as Step 4above then sealed

7 The two impingers condensate trap and connectors were rinsed with methanolammonium hydroxide The solvent sample was placed in a separate polyethylenecontainer and sealed

8 The silica gel in the final impinger was weighed and the weight gain value recorded

9 Site (reagent) blank samples of the methanolammonium hydroxide XAD resin filterand distilled water were retained for analysis

Each container was labeled to clearly identify its contents All samples were maintained cool

Following sample recovery all samples were transported to Eurofins TestAmerica

(TestAmerica) for sample extraction and analysis

See Figure 5-2 for a schematic of the Method 0010 sample recovery process

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 13

523 EPA Method 0010 Sample Analysis

Method 0010 sampling trains resulted in four separate analytical fractions for HFPO Dimer Acid

analysis according to SW-846 Method 3542

Front-half Compositemdashcomprised of the particulate filter and the probe nozzle and

front-half of the filter holder solvent rinses

Back-half Compositemdashcomprised of the first XAD-2 resin material and the back-half of

the filter holder with connecting glassware solvent rinses

Condensate Compositemdashcomprised of the aqueous condensates and the contents of

impingers one and two with solvent rinses

Breakthrough XAD-2 Resin Tubemdashcomprised of the resin tube behind the series of

impingers

The second XAD-2 resin material was analyzed separately to evaluate any possible sampling

train HFPO-DA breakthrough

The front-half and back-half composites and the second XAD-2 resin material were placed in

polypropylene wide-mouth bottles and tumbled with methanol containing 5 NH4OH for 18

hours Portions of the extracts were processed analytically for the HFPO dimer acid by liquid

chromatography and duel mass spectroscopy (HPLCMSMS) The condensate composite was

concentrated onto a solid phase extraction (SPE) cartridge followed by desorption from the

cartridge using methanol Portions of those extracts were also processed analytically by

HPLCMSMS

18

3

14

VACUUM LINEMAINVALVE

TEMPERATURESENSORS

BY-PASS VALVE

DRY GASMETER

CUBIC LITERS

ORIFICE

VACUUMGAUGE

AIR-TIGHT

PUMP

DRY ICE AND METHANOL

BATH

METHANOL IN EACH IMPINGER

FIGURE 5-3MODIFIED EPA METHOD 18 SAMPLING TRAIN FOR PFAS COMPOUNDS

GLASS IMPINGERS

STACK WALL

PLASTIC OR GLASS PROBE

PRESSUREDIFFERENTIAL

GAUGE

8 3 18

16

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 17

54 GAS COMPOSITION

The Weston mobile laboratory equipped with instrumental analyzers was used to measure carbon

dioxide (CO2) and oxygen (O2) concentrations A diagram of the Weston sampling system is

presented in Figure 5-4

For the Division stack test campaign the sample was collected at the exhaust of the Method

0010 sampling system At the end of the line a tee permitted the introduction of calibration gas

The sample was drawn through a heated Teflonreg sample line to the sample conditioner The

output from the sampling system was recorded electronically and one minute averages were

recorded and displayed on a data logger

Each analyzer was set up and calibrated internally by introduction of calibration gas standards

directly to the analyzer from a calibration manifold The calibration manifold is designed with an

atmospheric vent to release excess calibration gas and maintained the calibration at ambient

pressure The direct calibration sequence consisted of alternate injections of zero and mid-range

gases with appropriate adjustments until the desired responses were obtained The high-range

standards were then introduced in sequence without further adjustment

The sample line integrity was verified by performing a bias test before and after each test period

The sampling system bias test consisted of introducing the zero gas and one up-range calibration

standard in excess to the valve at the probe end when the system was sampling normally The

excess calibration gas flowed out through the probe to maintain ambient sampling system

pressure Calibration gas supply was regulated to maintain constant sampling rate and pressure

Instrument bias check response was compared to internal calibration responses to insure sample

line integrity and to calculate a bias correction factor after each run using the ratio of the

measured concentration of the bias gas certified by the calibration gas supplier

The oxygen and carbon dioxide content of each stack gas was measured according to EPA

Method 3A procedures which incorporate the latest updates of EPA Method 7E A Servomex

Model 4900 analyzer (or equivalent) was used to measure oxygen content A Servomex Model

4900 analyzer (or equivalent) was used to measure carbon dioxide content of the stack gas Both

analyzers were calibrated with EPA Protocol gases prior to the start of the test program and

performance was verified by sample bias checks before and after each test run

I

4

184

18

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 19

6 DETAILED TEST RESULTS AND DISCUSSION

M0010 test run number two was stopped prior to the full run time due to a process upset in the

area The run was considered complete and the sample was recovered and submitted for analysis

A total of two M0010 test runs were performed at the location A total of three MM18 test runs

were performed at the location

Table 6-1 provides detailed M0010 test data and test results for Division stack Table 6-2

provides detailed MM18 test data and test results for the Division stack

The Method 3A sampling indicated that the O2 and CO2 concentrations were at ambient air

levels (209 O2 0 CO2) therefore 209 O2 and 0 CO2 values were used in all

calculations

It should be noted that methylene chloride was identified in the MM18 analytical results This

detection was due to a special procedure done in the process area in which methylene chloride

was used to unplug equipment that experienced plugging during testing Methylene chloride

would not typically be detected in this process area

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

APPENDIX A PROCESS OPERATIONS DATA

24

Division

Date 11222019TimeStack TestingHFPOVEN ProductVEN PrecursorVEN Condensation (HFPO)VEN ABRVEN RefiningStripper Column VentDivision WGS Recirculation FlowDivision WGS Inlet Flow

Date 1242019TimeStack TestingHFPOVEN ProductVEN PrecursorVEN Condensation (HFPO)VEN ABRVEN RefiningStripper Column VentDivision WGS Recirculation FlowDivision WGS Inlet Flow

800 900 1000 1100 1300 1400 1500 1600RUN 1 0826-1022 RUN 2 - 1139-1320

1200

PPVE

Burnout

15000 kgh142 kgh 145 kgh 148 kgh 150 kgh 135 kgh 128 kgh 74 kgh103 kgh

RUN 3 0955-1125

PPVE

800 900 1000 1100

15000 kgh65 kgh 73 kgh 110 kgh

25

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

APPENDIX B RAW AND REDUCED TEST DATA

26

Sample and Velocity Traverse Point Data Sheet - Method 1

Client CJtl 11 eAAI Operator Loact1onPlant Vltf t fcu I le v Date 2J- l

Source ( v ) _5 -rj(L W O Number JT(t O

Duct Type Circular D Rectangular Duct Indicate eppropMate type

Traverse Type II( Particulate Traverse D Velocity Traverse D CEM Traverse

Distance from far wall to outside of oort lln l = C ltdeglt ) Flow Disturbances -

Port Deoth (in) = D 121 ur Upstream - A (ft) (1 (t I

Deoth or Duct diameter (inI= C-D I (I Area of Duct (ff) -11 7 01 - - --

Total Traverse Points 1 I tJ fa

Total Traverse Points oer Port

Port Diameter flnl-Flanae-Threaded-Holel l I

Monorail Lenoth t) Rectangular Ducts Onty

Width of Duct rectanaular duct only (In I Total Ports (rectanoular duct only) Eauivalent Diameter= 12middotL Wl(L+W)

Traverse Point Locations

Distance from Traverse Inside Duct Distance1from Outside of

Point of Duct Wallinl Portin)

1 1 i I 1- I b2 jtmicro 1poundgt

2 ( gt-0 h A il1

l y gtf-uir 7 vr

3 21 I09S- timiddot 1T 1e 1 tJ lDI 1

Igt 4 7 V

5

6

7

8

10

11

12

1

2

3

9S i 31 9 l- t

Cf5lv 35)7 $ f

- L

4Mre (

CEM 3 Polnl(Long Measurmbullnt Unbull) StraUflcaton POnt Locations

0167

050

0833 Note If stack dla lt 12 inch use EPA Method 1A

(Sample port upstream of pilot port) Note stack dia gt24 then adjust traverse point to 1 inch from wall

If stack dia lt24 then adjust traverse point to 05 inch from wall

l 2 T I 146

r 2 854 ) L

4 bull 0

r C 5 bull a 6 o I 7

8 p 0 o n 9

I 10

n II 12

Traverso Point Location Ptrcant of Stack Circular

J 4

67

25

75

i

NwnberofT IPoints 5 6 8

44 32

146 tQ5

296 194

704 123

854 677

956 8D6

895

96B

9 10

26

82 146

226

)42

658

774

1154 918

974

ll

tfltr

middotltt

12

21

67 118 111

25

l56

644

15

823

w 9)3

979

Downstream - B (ft) -

91 Qt

Upstream - A (duct diameters t

Downstream - B duct diameters) 61Diagram of Stack

11 _ ---

ltl Igt-

ry middoti 5D -

j

--

Duct 0middot1ameters Upstream from Flow Disturbance (Distance A

05 1 0 1 5 20 25 50

I I I I I I I

Stack Diametergt 24 Inches deg t

40 - A

plusmn --- -middot

Minimum Number cf bull

l

JO -Particulate Traverse Points

l _

24 (chular) 25 (mctangulw dlJdltl)

20 -

Traverse Polllls for Velocity 16

12

I 10 _ Disturbance =Band Expansion Contraction etc

B(tmJiir)lilj

S1adDlaarDti1224Rnefl

4

Duct Dlemehn Downstraam from Acv Dl1furbance (Olslenca B)

Travers Point Location Panent of Stack ootanaular

NIJlber ofTnrne Polnls I 2 l 4 5 6 7 8 9 10 II ll

T I 250 167 125 100 8J 71 6J 56 50 45 41

2 7SO 51l0 31J 300 25J ZIA 18J 167 ISII llli 11l J 8) 3 625 500 417 )57 JU 278 250 227 208 l

4 75 70I ID 5110 431 IU 310 318 29Z o 5 900 750 60 563 500 4SO 409 Jll a 6 911 JU 611 U ru tea 458 I 7 C29 813 722 650 91 l4l

i tu w 750 42 ill p 0

o n i 944 850 m 708 I 10 i5JI 1164 191

II 955 875 12 JJI

27

CHEMOURS - FAYETTEVILLE NCINPUTS FOR HFPO DIMER ACID CALCULATIONS

DIVISION STACK

Test DataRun number 1 2Location Divison Stack Divison StackDate 112219 112219Time period 0826-1022 1139-1324Operator BB BB

Inputs For CalcsSq rt delta P 145039 122804Delta H 14025 10010Stack temp (degF) 716 794Meter temp (degF) 570 652Sample volume (act) 63136 47088Barometric press (inHg) 3002 3002Volume H2O imp (ml) 100 70Weight change sil gel (g) 244 145 CO2 00 00 O2 209 209 N2 791 791Area of stack (sqft) 7070 7070Sample time (min) 960 840Static pressure (inH2O) -035 -035Nozzle dia (in) 0160 0160Meter box cal 09972 09972Cp of pitot tube 084 084Traverse points 12 12

122020 1102 AM 112219 Div Stack M001028

ISOKINETIC FIELD DATA SHEET EPA Method 0010 - HFPO Dimer Acid Page J~ orb client chemours Stack Conditions Meter Box ID K Factor Q wo 15418002018 Assumed Actual MeterBox Y rjq7 a Project ID Chemours Moisture ^~ 3 Meter Box Del H ~ $j ~~ Illltlal Mid-Point Final ModeSource ID Division Impinger Vol (ml) Probe ID Length L~~ ~ Sample Train (ft3) o o D 5 GAO U (~(~ Samp Loc ID STK Silica gel (g) Probe Material ~Boro Leak Check (in Hg) `~ ~ S ~~ ~

Run NoID 1 CO2 deg by Vol Q Pitot Thermocouple ID Pitot leak check good yes no no no Test Method ID M0010 02 by Vol ~ ~ Pitot Coe~cient 84~r Pitot Inspection good no ye no no Date ID NOV2019 Temperature (degF) ~ Noale ID ~~ Method 3 System good yes no yes no yes no SourceLocation Div(sion Stack Meter Temp (F) l~ Noale Measurements ~ 6 p ~ LO Temp Check re-Test Set POSt-Test Set Sample Date ~ Static Press (in H2O) mdash ~ 3 ~j ~J Avg Noale Dia (in) ~ ~ 6 bull ~ Meter Box Temp

Baro Press (in Hg) Area of Stack (ftz) Q~ Reference Temp Operator Ambient Temp (degF) ~ ~ Sample Time `~ (~ PasslFail (+- 2deg~ Pass Fail Pass Fail

Total Traverse Pts ~ a Temp Change Response ~ yes no yes no

~~r~~~-

~~mdash~~ ~ ~ ~ ~ ~ i ~~~~mdash

~~-~~~Itibull1~~~ bull ~~~~~~~_~~

~~-~ I ~~~~~~~~~- ~~~

avg uena r ( vvg uerca ry

a ~ ~Ib J Ava Sart Delta P Avo Sart Dei t

i oral vowme~ ( b vvg i s

~~~ nments

J ~lr ~ ~~~~13~

J

vvg i m J rvun~nnax rvunlnnax nnax rwax vac nnin~rv~ax

~~ d ltltu~~~~ te6~~~~( sq g H~ly~ EPA Method 0010 from EPA SW- 46

(~ Q~ ~~~ 29

ISOHINETIC FIELD DATA SHEET EPA Method 0010 - HFPO Dimer Acid Page ~ or 1 Client Chemours Stack Conditions Meter Box ID qq~ ~ K Factor ~ 6 WO 15418002018 Assumed Actual Meter Box Y Project ID Chemours Moisture ~ Meter Box Del H ( gj ~ Init181 Mid-Point FIn81 ModeSource ID Division Impinger Vol (ml) Probe ID Length H q 4 ~ 6~ Sample Train (ft3) ~ Oo ~ jj ~ Samp Loc ID STK Silica gel (g)

mdash~ Probe Material Boro Leak Check (in Hg) ~

Run NoID 2 CO2 by Vol Pitot Thermocouple ID Pitot leak check good ~ no e no yes np Test Method ID M0010 02 deg by Vol ~ q Pitot Coefficient 084 Pitot Inspection good no e no yes no Date ID S L

NOV2019 Temperature (degF) MeterT m F

~~ Noale ID Method 3 S stem ood Y 9 Yes no yes no yes no ource ovation Diviswn Stack e P ( ) Noale Measurements I b~ ~ 60 ~ (~ Temp Check Pre-Test et Post-Test Set

Sample Date ~ ~ a mdash ( Static Press (in Hz0) mdash~ 3 Avg Noale Dia (in) ( ~ Meter Box Temp Baro Press (in Hg) Q Area of Stack (ft2) Reference Temp Operator Ambient Temp (degF) SQ Sample Time _q~-- `~j PassFail (+- 2deg) Pass Fail Pass Fail

Total Traverse Pts ~ ~ Temp Change Response yes no ves no

bull

mdash~~~~ ~ bull

~~~~--- ~~~

~~mdash~~ ~ r ~ ~~~~~-

1~__2~ 000~5~

Avg Sgrt Delta P Avg Sgrt Del

t-~`~~5 ~~~~~~~

bully bull~ r ~~~~~~~~a~ miuimnn man max vac mnuPnax

~~ flg~ ~1q~1 lo ~-- QOIl2(o g3(tl5 (a~ (v ~I`b~(o0 Comments EPA Method 0010 from EPA SW-846

_ t~~ ~~_~- 30

12120201028 AM 112219 Div Stack MM18

TEST DATA Test run number 1 2 3 Location Division Stack Division Stack Division Stack Test date 112219 112219 12419 Test time period 0826-1022 1139-1318 0955-1125Operator WF WF KS

SAMPLING DATA Duration minutes 84 78 90 Average dry gas meter press in H2O 341 356 500 Average dry gas meter temp deg F 549 6600 5450 Average absolute meter temp deg R 5149 5260 5145 Sample vol at meter cond dcl 143580 147394 159313 Meter box calibration Y 09996 09996 10140 Barometric pressure in Hg 3002 3002 3012 Sample volume dscl (1) 148843 149624 168860 Sample volume dscf (1) 5256 5283 5963

VOLUMETRIC FLOW RATE Avg gas stream volumetric flow dscfmin 33787 28485 31136

(1) Standard conditions = 68 deg F (20 deg C) and 2992 inches Hg (760mm Hg)

CHEMOURS-FAYETTEVILLE NCINPUTS FOR EPA MM18 TARGET COMPOUND CALCULATIONS

DIVISION STACK

32

FIELD DATA SHEET Client Chemours Run No

WO 15418002018 Test Method

Project ID CHEM-F Date

ModeSource ID Division Baro Press (in Hg)

Samp Loc Stack Ambient Temp (degF)

Source Division Stk Operator

Sample Time Comments Initial Probe Leak check

Final Probe Leak check

MM 1 S - HFPO Diener Acid Page ~ of ~ 1 Meter Box ID

Modified M18 Meter Box Y Q G

Nov 2019 Probe IDLength Leak Check (in Hg) (~~~ ~bdquo~~~ I I (~Q (1~~ ~

3Q (~Z Probe Material Pitot leak check good yecLpry yes no y~uc_Law

bull ~

~~- ~~ ~~

~ ~~ ~ --~

------ --

Avg Delta H Total Volume Avg Tm Max Temp Max Vac Max Temp

33

FIELD DATA SHEET Client

W O

Project ID

ModeSource ID

Samp Loc

Source

Comments

Chemours Run No

15418002018 Test Method

CHEM-F Date

Division Baro Press (in Hg)

Stack Ambient Temp (degF)

Division Stk Operator

Sample Time

Initial Probe Leak check Final Probe Leak check

MM 18 - HFPO Dimer Acid 2 Meter Box ID ~0

Modified M18 Meter Box Y G~ ~+ Nov 2019 Probe IDLength Leak Check (in Hg)

~(~ p ~ Probe Material Pitot Teak check good

da W

~~ ~laquo

Page ~ of

pJCH ~~~

yes no yes no

~~~~ r ~~~rl~~~f~r~~~~ ~ ~ ~m~ - ~c~1 ~~~P~~~~i~ ~ ~m~ ~~~c~~~~~l~~~~ ~

m ~ ~_-1

~~bulls~s7xix~~rax a

Hvg ueita n ~ i otai volume

35~ ~ I~1~~ Hvg i m Hoax I emp Max Vac Max Temp

l~ ~

34

~~v S~~-~Ll~

SAMPLE RECOVERY FIELD DATA

Client r~i4 ~`~ WO LocationPlant ~ ~~ bdquomdash r Source ampLocation J I~

Run No Sample Date ~~~~ ~ Recovery Date gt ~

Sample ID ~ ~~(~ Analyst ~ ~ Filter Number

Im in er 1 2 3 4 5 6 7 Im Total 8 Total

Contents Silica Gel

Final ~~ ~~j~zj ~ ~~7i ~ ~

~ `~ 1

Initial ~ G~ ~~ ~ ~ ~~ ~ ~ ~ utJ~ ~d

ca~~ I3 ~- -_~ i ImpingerColor ~A~ j~=~~ Labeled

mdash~ Silica Gel Condition Sealed

Run No ~ Sample Date ~ ~~ Recovery Date ~~~

Sample ID Analyst Filter Number ~~

Im in er 1 2 3 4 5 6 7 ImpTotai 8 Total

Contents Silica Gel

Final ~~r ~ 1o~i(~ ~0~ ~ ~Os

Initial ~ rs b~~~~ ~~~ ~~ Q ~~ f

Gain ~s d d

Impinger Color ~j ( ~ Labeled

Silica Gel Condition Sealed

Run No lf~ Sample Dated ~ ~ Recovery Date ~~ tmdash

Sample ID ~ Analyst Filter Number

Im in er 1 2 3 4 5 6 7 ImpTotal 8 Total

Contents Silica Gel

Final ~ t ~~r ~ b s ~ ~ 0 ~1 ~~~ b~

initial ~ ~ = ~ v b ~~gt ~ ~ ~~ - ~j

Gain ~ 4 ~G(~j~ ~ Impinger Color -~ ~ La~ed

Silica Gel Condition Sealed

Check COC for Sample IDs of Media Blanks ~ ~~

~

~~

35

FIELD DATA SHEET MM 18 Client Chemours Run No 1 Meter Box ID

WO 15418002018 Test Method Modified M18 Meter Box Y D I~

Project ID CHEM-F Date ~I Dec 2019 Probe IDLength Leak Check (in Hg)

ModeSource ID VE NoRh Baro Press (in Hg) 3~~ Probe Mate~ai Pitot leak check good Samp Loc Stack Ambient Temp (degF) O

Source Division Operator f

Sample Time ~~ M~

Comments Initial Probe Leak check ~~ a ~~pi~

Final Probe Leak check ~~i y ~r~~~p

Page ~ of

yes no yes no yes no

a~ ~a~~~ o~r~~~~

~~~ ~~~~a~ ~~~ ~

~~~~ I ~~ ~~ ~ ~ ~~~~~~~~~ ~~~~em~~

--- -- ~~-

--~ -- ~~-~ Avg Delta HJ Total Volume Avg Tm MaxTemp Max Vac Max Temp

36

SAMPLE RECOVERY FIELD DATA

Client ~ ~ lam C~1` s WO l~ 4 l~ gt~ti~- =~~ ~vi LocatioNPlant r-c~ t~ Source ampLocation ~ C JV~3c- mdash ~ y~~ ~~ 5

Run No 3 Sample Date Iz-~ ~-1 mdash j ~ Recovery Date ~~9

Sample ID Analyst Filter Number i l~ Im in er

1 2 3 4 5 6 7 Im Total 8 Total Contents Silica Gel

Final 4 ~ ~ G~ U ~O ~ ~ C1 ~~ 3 ~ _

Initial ~ ~ ~ C1~ bull ~- L ~c3~-~j ~ 13~

Gain C~ ~ d + t ~ ~ ~L O ~ ~ ~ v r C7 r

Impinger Color ______~~ Labeled r

Silica Gel Condition +~U Sealed

Run No Sample Date Recovery Date

Sample ID Analyst Filter Number

Im in er 1 2 3 4 5 6 7 ImpTotal 8 Total

Contents ~ Silica Gel

Final

Initial ~~~ ~~0 607` ~C~ ~~ ~~ ~ f3 ~3

Gain

Impinger Color Labeled

Silica Gel Condition Sealed

Run No Sample Date Recovery Date

Sample ID Analyst Filter Number

Im in er 1 2 3 4 5 6 7 ImpTotal 8 Total

Contents Silica Gel

Final

Initial

Gain

Impinger Color Labeled

Silica Gel Condition Sealed

Check COC for Sample IDs of Media Blanks ~`

k3aT~AF c

37

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

APPENDIX C LABORATORY ANALYTICAL REPORT

38

ANALYTICAL REPORTJob Number 140-17458-1

Job Description VEN Stack - M0010

Contract Number LBIO-67048

ForChemours Company FC LLC The

co AECOMSabre Building Suite 300

4051 Ogletown RoadNewark DE 19713

Attention Michael Aucoin

_____________________________________________

Approved for releaseCourtney M AdkinsProject Manager II12102019 307 PM

Courtney M Adkins Project Manager II5815 Middlebrook Pike Knoxville TN 37921

(865)291-3000courtneyadkinstestamericainccom

12102019

This report may not be reproduced except in full and with written approval from the laboratory For questions please contact the Project Manager atthe e-mail address or telephone number listed on this page

The test results in this report relate only to the samples as received by the laboratory and will meet all requirements of the methodology with anyexceptions noted This report shall not be reproduced except in full without the express written approval of the laboratory All questions should bedirected to the Eurofins TestAmerica Project Manager

This report has been electronically signed and authorized by the signatory Electronic signature is intended to be the legally binding equivalent of atraditionally handwritten signature

Eurofins TestAmerica Knoxville

5815 Middlebrook Pike Knoxville TN 37921

Tel (865) 291-3000 Fax (865) 584-4315 wwwtestamericainccom

12102019Page 1 of 21339

Table of ContentsCover Title Page 1

Data Summaries 4

Definitions 4

Method Summary 5

Sample Summary 6

Case Narrative 7

QC Association 9

Client Sample Results 11

Default Detection Limits 13

Surrogate Summary 14

QC Sample Results 15

Chronicle 18

Certification Summary 22

Manual Integration Summary 24

Organic Sample Data 25

LCMS 25

8321A_HFPO_Du 258321A_HFPO_Du QC Summary 268321A_HFPO_Du Sample Data 32Standards Data 40

8321A_HFPO_Du ICAL Data 408321A_HFPO_Du CCAL Data 63

Raw QC Data 758321A_HFPO_Du Tune Data 758321A_HFPO_Du Blank Data 808321A_HFPO_Du LCSLCSD Data 92

12102019Page 2 of 21340

Table of Contents8321A_HFPO_Du Run Logs 1058321A_HFPO_Du Prep Data 107

Method DV-LC-0012 114Method DV-LC-0012 QC Summary 115Method DV-LC-0012 Sample Data 123Standards Data 147

Method DV-LC-0012 CCAL Data 147Raw QC Data 165

Method DV-LC-0012 Tune Data 165Method DV-LC-0012 Blank Data 170Method DV-LC-0012 LCSLCSD Data 182

Method DV-LC-0012 Run Logs 198Method DV-LC-0012 Prep Data 200

Shipping and Receiving Documents 206

Client Chain of Custody 207

12102019Page 3 of 21341

DefinitionsGlossaryJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

Qualifiers

LCMSQualifier Description

LCS or LCSD is outside acceptance limits

Qualifier

B Compound was found in the blank and sample

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

GlossaryThese commonly used abbreviations may or may not be present in this report

curren Listed under the D column to designate that the result is reported on a dry weight basis

Abbreviation

R Percent Recovery

CFL Contains Free Liquid

CNF Contains No Free Liquid

DER Duplicate Error Ratio (normalized absolute difference)

Dil Fac Dilution Factor

DL Detection Limit (DoDDOE)

DL RA RE IN Indicates a Dilution Re-analysis Re-extraction or additional Initial metalsanion analysis of the sample

DLC Decision Level Concentration (Radiochemistry)

EDL Estimated Detection Limit (Dioxin)

LOD Limit of Detection (DoDDOE)

LOQ Limit of Quantitation (DoDDOE)

MDA Minimum Detectable Activity (Radiochemistry)

MDC Minimum Detectable Concentration (Radiochemistry)

MDL Method Detection Limit

ML Minimum Level (Dioxin)

NC Not Calculated

ND Not Detected at the reporting limit (or MDL or EDL if shown)

PQL Practical Quantitation Limit

QC Quality Control

RER Relative Error Ratio (Radiochemistry)

RL Reporting Limit or Requested Limit (Radiochemistry)

RPD Relative Percent Difference a measure of the relative difference between two points

TEF Toxicity Equivalent Factor (Dioxin)

TEQ Toxicity Equivalent Quotient (Dioxin)

Eurofins TestAmerica Knoxville

12102019Page 4 of 21342

Method SummaryJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

Method Method Description LaboratoryProtocol

SW8468321A HFPO-DA TAL DEN

SW8468321A PFOA and PFOS TAL DEN

TAL SOPNone Leaching Procedure TAL DEN

TAL SOPNone Leaching Procedure for Condensate TAL DEN

TAL SOPNone Leaching Procedure for XAD TAL DEN

Protocol References

SW846 = Test Methods For Evaluating Solid Waste PhysicalChemical Methods Third Edition November 1986 And Its Updates

TAL SOP = TestAmerica Laboratories Standard Operating Procedure

Laboratory References

TAL DEN = Eurofins TestAmerica Denver 4955 Yarrow Street Arvada CO 80002 TEL (303)736-0100

Eurofins TestAmerica Knoxville

12102019Page 5 of 21343

Sample SummaryJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

Lab Sample ID Client Sample ID ReceivedCollectedMatrix Asset ID

140-17458-1 G-25772578 DIV VEN STACK R1 M0010 FH Air 112219 0000 112519 0800

140-17458-2 G-257925802582 DIV VEN STACK R1 M0010

BH

Air 112219 0000 112519 0800

140-17458-3 G-2581 DIV VEN STACK R1 M0010 IMPINGERS

12amp3 COND

Air 112219 0000 112519 0800

140-17458-4 G-2583 DIV VEN STACK R1 M0010

BREAKTHROUGH XAD-2 RESIN TUBE

Air 112219 0000 112519 0800

140-17458-5 G-25842585 DIV VEN STACK R2 M0010 FH Air 112219 0000 112519 0800

140-17458-6 G-258625872589 DIV VEN STACK R2 M0010

BH

Air 112219 0000 112519 0800

140-17458-7 G-2588 DIV VEN STACK R2 M0010 IMPINGERS

12amp3 COND

Air 112219 0000 112519 0800

140-17458-8 G-2590 DIV VEN STACK R2 M0010

BREAKTHROUGH XAD-2 RESIN TUBE

Air 112219 0000 112519 0800

Eurofins TestAmerica Knoxville

12102019Page 6 of 21344

Job Narrative140-17458-1

Sample Receipt

The samples were received on November 25 2019 at 800 AM in good condition and properly preserved The temperature of the cooler at receipt was 16ordm C

Quality Control and Data Interpretation

Unless otherwise noted all holding times and QC criteria were met and the test results shown in this report meet all applicable NELAC requirements

Method 0010Method 3542 Sampling Train Preparation

Train fractions were extracted and prepared for analysis in TestAmericarsquos Knoxville laboratory Extracts and condensate samples were forwarded to the Denver laboratory for HFPO-DA analysis All results are reported in ldquoTotal ugrdquo per sample

LCMS

Method 8321A The following samples were inadvertently spiked with a native solution of HFPO-DA rather than the isotope dilution

internal standard prior to extraction in the Knoxville Laboratory

middot DIV VEN Stack R1 FHmiddot DIV VEN Stack R1 BHmiddot DIV VEN R1 Breakthrough middot DIV VEN Stack R2 FHmiddot DIV VEN Stack R2 BHmiddot DIV VEN R2 Breakthrough

As a result these samples received a relatively small fortification of the native HFPO-DA and no labeled IDA as typically applied Upon

discovery of the processing issue the IDAs were post spiked onto the extracted samples which were then re-analyzed to acquire the

Total HFPO-DA content in the samples The spiked amount of native HFPO-DA was subsequently subtracted from the Total HFPO-DA

and the corrected concentration is reported in with the data set below

Please note that under these conditions the affected samples are not corrected for extraction losses through isotope dilution internal

standard data reduction However the HFPO-DA concentrations are accurate and useful for their intended purpose

Method 8321A The laboratory control sample (LCS) and or laboratory control sample duplicate (LCSD) for preparation batch 280-478940 and analytical batch 280-479928 recovered outside control limits for the following analytes HFPO These analytes were biased high in the LCS and were not detected in the associated samples therefore the data have been reported

No additional analytical or quality issues were noted other than those described above or in the DefinitionsGlossary page

Organic Prep

No analytical or quality issues were noted other than those described in the DefinitionsGlossary page

12102019Page 7 of 21345

Chemours VES Carbon Bed Outlet Test Analytical Report TestAmerica Job No 140-17458-1

December 10 2019

OUsers FoldersAdkinsCProject DocumentsSpecial ReportingChemours Corrected ValuesFayettevilleChemours Corrected Results HFPO-DA_DIV VEN Stack_12102019docx Created on 01302018 Last edited on 12102019 302 PM

The following samples were inadvertently spiked with a native solution of HFPO-DA prior to extraction

in the Knoxville laboratory

DIV VEN Stack R1 FH

DIV VEN Stack R1 BH

DIV VEN R1 Breakthrough

DIV VEN Stack R2 FH

DIV VEN Stack R2 BH

DIV VEN R2 Breakthrough

The HFPO-DA results presented below have been corrected to remove the laboratory contribution from the final result

TALS ID Client ID HFPO-DA Result (ugsample)

HFPO-DA Added in the lab

(ugsample)

HFPO-DA Corrected Result

(ugsample)

140-17458-1 DIV VEN Stack R1 FH

986 2 786

140-17458-2 DIV VEN Stack R1 BH

213 7 143

140-17458-4 DIV VEN R1 Breakthrough

230 4 ND

140-17458-5 DIV VEN Stack R2 FH

658 25 408

140-17458-6 DIV VEN Stack R2 BH

363 65 298

140-17458-8 DIV VEN R2 Breakthrough

219 4 ND

12102019Page 8 of 21346

QC Association SummaryJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

LCMS

Analysis Batch 464589

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321ADLCK 280-46458913 Lab Control Sample TotalNA

Prep Batch 478940

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air None140-17458-1 G-25772578 DIV VEN STACK R1 M0010 FH TotalNA

Air None140-17458-5 G-25842585 DIV VEN STACK R2 M0010 FH TotalNA

Air NoneMB 280-47894014-A Method Blank TotalNA

Air NoneMB 280-4789401-A Method Blank TotalNA

Air NoneLCS 280-4789402-A Lab Control Sample TotalNA

Air NoneLCSD 280-4789403-A Lab Control Sample Dup TotalNA

Prep Batch 478993

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air None140-17458-3 G-2581 DIV VEN STACK R1 M0010 IMPINGERS 12amp3 CONDTotalNA

Air None140-17458-7 G-2588 DIV VEN STACK R2 M0010 IMPINGERS 12amp3 CONDTotalNA

Air NoneMB 280-47899314-A Method Blank TotalNA

Air NoneMB 280-4789931-A Method Blank TotalNA

Air NoneLCS 280-4789932-A Lab Control Sample TotalNA

Air NoneLCSD 280-4789933-A Lab Control Sample Dup TotalNA

Prep Batch 479245

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air None140-17458-2 G-257925802582 DIV VEN STACK R1 M0010 BHTotalNA

Air None140-17458-4 G-2583 DIV VEN STACK R1 M0010 BREAKTHROUGH XAD-2 RESIN TUBETotalNA

Air None140-17458-6 G-258625872589 DIV VEN STACK R2 M0010 BHTotalNA

Air None140-17458-8 G-2590 DIV VEN STACK R2 M0010 BREAKTHROUGH XAD-2 RESIN TUBETotalNA

Air NoneMB 280-4792451-A Method Blank TotalNA

Air NoneLCS 280-4792452-A Lab Control Sample TotalNA

Air NoneLCSD 280-4792453-A Lab Control Sample Dup TotalNA

Analysis Batch 479814

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321A 478993140-17458-3 G-2581 DIV VEN STACK R1 M0010 IMPINGERS 12amp3 CONDTotalNA

Air 8321A 478993140-17458-7 G-2588 DIV VEN STACK R2 M0010 IMPINGERS 12amp3 CONDTotalNA

Air 8321A 478993MB 280-47899314-A Method Blank TotalNA

Air 8321A 478993MB 280-4789931-A Method Blank TotalNA

Air 8321A 478993LCS 280-4789932-A Lab Control Sample TotalNA

Air 8321A 478993LCSD 280-4789933-A Lab Control Sample Dup TotalNA

Analysis Batch 479928

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321A 478940140-17458-1 G-25772578 DIV VEN STACK R1 M0010 FH TotalNA

Air 8321A 478940140-17458-5 G-25842585 DIV VEN STACK R2 M0010 FH TotalNA

Air 8321A 478940MB 280-47894014-A Method Blank TotalNA

Air 8321A 478940MB 280-4789401-A Method Blank TotalNA

Air 8321A 478940LCS 280-4789402-A Lab Control Sample TotalNA

Air 8321A 478940LCSD 280-4789403-A Lab Control Sample Dup TotalNA

Analysis Batch 479929

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321A 479245140-17458-2 G-257925802582 DIV VEN STACK R1 M0010 BHTotalNA

Eurofins TestAmerica Knoxville

12102019Page 9 of 21347

QC Association SummaryJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

LCMS (Continued)

Analysis Batch 479929 (Continued)

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321A 479245140-17458-4 G-2583 DIV VEN STACK R1 M0010 BREAKTHROUGH XAD-2 RESIN TUBETotalNA

Air 8321A 479245140-17458-6 G-258625872589 DIV VEN STACK R2 M0010 BHTotalNA

Air 8321A 479245140-17458-8 G-2590 DIV VEN STACK R2 M0010 BREAKTHROUGH XAD-2 RESIN TUBETotalNA

Air 8321A 479245MB 280-4792451-A Method Blank TotalNA

Air 8321A 479245LCS 280-4792452-A Lab Control Sample TotalNA

Air 8321A 479245LCSD 280-4792453-A Lab Control Sample Dup TotalNA

Eurofins TestAmerica Knoxville

12102019Page 10 of 21348

Client Sample ResultsJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

Lab Sample ID 140-17458-1Client Sample ID G-25772578 DIV VEN STACK R1 M0010 FHMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Air Train

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 986 B 0100 00108 ugSample 112719 0804 120819 0915 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 133 50 - 200 112719 0804 120819 0915 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Lab Sample ID 140-17458-2Client Sample ID G-257925802582 DIV VEN STACK R1 M0010 BH

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Air Train

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 213 B 0350 00700 ugSample 120219 1125 120819 0955 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 116 50 - 200 120219 1125 120819 0955 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Lab Sample ID 140-17458-3Client Sample ID G-2581 DIV VEN STACK R1 M0010 IMPINGERS 12amp3 COND

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Air Train

Method 8321A - HFPO-DARL MDL

HFPO-DA 0145 J 0212 00108 ugSample 112719 1236 120619 1241 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 116 50 - 200 112719 1236 120619 1241 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Lab Sample ID 140-17458-4Client Sample ID G-2583 DIV VEN STACK R1 M0010 BREAKTHROUGH XAD-2 RESIN TUBE

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Air Train

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 230 B 0200 00400 ugSample 120219 1125 120819 0958 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 126 50 - 200 120219 1125 120819 0958 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Eurofins TestAmerica Knoxville

12102019Page 11 of 21349

Client Sample ResultsJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

Lab Sample ID 140-17458-5Client Sample ID G-25842585 DIV VEN STACK R2 M0010 FHMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Air Train

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 658 B 0125 00135 ugSample 112719 0804 120819 0919 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 136 50 - 200 112719 0804 120819 0919 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Lab Sample ID 140-17458-6Client Sample ID G-258625872589 DIV VEN STACK R2 M0010 BH

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Air Train

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 363 B 0325 00650 ugSample 120219 1125 120819 1001 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 100 50 - 200 120219 1125 120819 1001 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Lab Sample ID 140-17458-7Client Sample ID G-2588 DIV VEN STACK R2 M0010 IMPINGERS 12amp3 COND

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Air Train

Method 8321A - HFPO-DARL MDL

HFPO-DA ND 0196 000999 ugSample 112719 1236 120619 1244 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 121 50 - 200 112719 1236 120619 1244 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Lab Sample ID 140-17458-8Client Sample ID G-2590 DIV VEN STACK R2 M0010 BREAKTHROUGH XAD-2 RESIN TUBE

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Air Train

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 219 B 0200 00400 ugSample 120219 1125 120819 1004 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 109 50 - 200 120219 1125 120819 1004 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Eurofins TestAmerica Knoxville

12102019Page 12 of 21350

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17458-1ProjectSite VEN Stack - M0010

Method 8321A - HFPO-DAPrep None

000250HFPO-DA ugSample

Analyte UnitsMDLRL

000128

Method 8321A - PFOA and PFOSPrep None

00250HFPO-DA ugSample

Analyte UnitsMDLRL

000270

0100HFPO-DA ugSample00200

Eurofins TestAmerica Knoxville

12102019Page 13 of 21351

ANALYTICAL REPORTJob Number 140-17461-1

Job Description VEN Stack - MM-18

Contract Number LBIO-67048

ForChemours Company FC LLC The

co AECOMSabre Building Suite 300

4051 Ogletown RoadNewark DE 19713

Attention Michael Aucoin

_____________________________________________

Approved for releaseCourtney M AdkinsProject Manager II12232019 300 PM

Courtney M Adkins Project Manager II5815 Middlebrook Pike Knoxville TN 37921

(865)291-3000 courtneyadkinstestamericainccom

12232019

This report may not be reproduced except in full and with written approval from the laboratory For questions please contact the Project Manager atthe e-mail address or telephone number listed on this page

The test results in this report relate only to the samples as received by the laboratory and will meet all requirements of the methodology with anyexceptions noted This report shall not be reproduced except in full without the express written approval of the laboratory All questions should bedirected to the Eurofins TestAmerica Project Manager

This report has been electronically signed and authorized by the signatory Electronic signature is intended to be the legally binding equivalent of atraditionally handwritten signature

Eurofins TestAmerica Knoxville

5815 Middlebrook Pike Knoxville TN 37921

Tel (865) 291-3000 Fax (865) 584-4315 wwwtestamericainccom

12232019Page 1 of 89452

Table of ContentsCover Title Page 1

Data Summaries 5

Definitions 5

Method Summary 6

Sample Summary 7

Case Narrative 8

QC Association 10

Client Sample Results 14

Default Detection Limits 43

Surrogate Summary 45

QC Sample Results 46

Chronicle 54

Certification Summary 63

Manual Integration Summary 64

Organic Sample Data 77

GCMS VOA 77

Method 8260B 77Method 8260B QC Summary 78Method 8260B Sample Data 93Standards Data 287

Method 8260B ICAL Data 287Method 8260B CCAL Data 389

Raw QC Data 437Method 8260B Tune Data 437Method 8260B Blank Data 453Method 8260B LCSLCSD Data 461

12232019Page 2 of 89453

Table of ContentsMethod 8260B MSMSD Data 474

Method 8260B Run Logs 482Method 8260B Prep Data 495

HPLCIC 498

Method 9056 498Method 9056 QC Summary 499Method 9056 Sample Data 502Standards Data 538

Method 9056 ICAL Data 538Method 9056 CCAL Data 565

Raw QC Data 612Method 9056 Blank Data 612Method 9056 LCSLCSD Data 638Method 9056 MSMSD Data 644

Method 9056 Run Logs 650Method 9056 Prep Data 664

Method 9056A Total Halogens 667Method 9056A Total Halogens QC Summary 668Method 9056A Total Halogens Sample Data 676Standards Data 715

Method 9056A Total Halogens ICAL Data 715Method 9056A Total Halogens CCAL Data 740

Raw QC Data 781Method 9056A Total Halogens Blank Data 781Method 9056A Total Halogens LCSLCSD Data 817Method 9056A Total Halogens MSMSD Data 831

12232019Page 3 of 89454

Table of ContentsMethod 9056A Total Halogens Run Logs 839Method 9056A Total Halogens Prep Data 855

Inorganic Sample Data 864

General Chemistry Data 864

Gen Chem Cover Page 865

Gen Chem Sample Data 866

Gen Chem QC Data 878Gen Chem ICVCCV 878Gen Chem Duplicates 879

Gen Chem MDL 880

Gen Chem Analysis Run Log 881

Gen Chem Prep Data 882

Gen Chem Raw Data 884

Shipping and Receiving Documents 886

Client Chain of Custody 887

12232019Page 4 of 89455

DefinitionsGlossaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Qualifiers

GCMS VOAQualifier Description

LCS or LCSD is outside acceptance limits

Qualifier

H Sample was prepped or analyzed beyond the specified holding time

GCMS VOA TICsQualifier Description

H Sample was prepped or analyzed beyond the specified holding time

Qualifier

J Indicates an Estimated Value for TICs

N Presumptive evidence of material

T Result is a tentatively identified compound (TIC) and an estimated value

HPLCICQualifier Description

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

Qualifier

General ChemistryQualifier Description

HF Field parameter with a holding time of 15 minutes Test performed by laboratory at clients request

Qualifier

GlossaryThese commonly used abbreviations may or may not be present in this report

curren Listed under the D column to designate that the result is reported on a dry weight basis

Abbreviation

R Percent Recovery

CFL Contains Free Liquid

CNF Contains No Free Liquid

DER Duplicate Error Ratio (normalized absolute difference)

Dil Fac Dilution Factor

DL Detection Limit (DoDDOE)

DL RA RE IN Indicates a Dilution Re-analysis Re-extraction or additional Initial metalsanion analysis of the sample

DLC Decision Level Concentration (Radiochemistry)

EDL Estimated Detection Limit (Dioxin)

LOD Limit of Detection (DoDDOE)

LOQ Limit of Quantitation (DoDDOE)

MDA Minimum Detectable Activity (Radiochemistry)

MDC Minimum Detectable Concentration (Radiochemistry)

MDL Method Detection Limit

ML Minimum Level (Dioxin)

NC Not Calculated

ND Not Detected at the reporting limit (or MDL or EDL if shown)

PQL Practical Quantitation Limit

QC Quality Control

RER Relative Error Ratio (Radiochemistry)

RL Reporting Limit or Requested Limit (Radiochemistry)

RPD Relative Percent Difference a measure of the relative difference between two points

TEF Toxicity Equivalent Factor (Dioxin)

TEQ Toxicity Equivalent Quotient (Dioxin)

Eurofins TestAmerica Knoxville

12232019Page 5 of 89456

Method SummaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Method Method Description LaboratoryProtocol

SW8468260B Volatile Organic Compounds (GCMS) TAL KNX

SW8469056 Anions Ion Chromatography TAL KNX

SW8469041A pH TAL KNX

SW8465050 Bomb Preparation Method for Solid Waste TAL KNX

NoneMeOH Prep Methanol Impinger Preparation TAL KNX

Protocol References

None = None

SW846 = Test Methods For Evaluating Solid Waste PhysicalChemical Methods Third Edition November 1986 And Its Updates

Laboratory References

TAL KNX = Eurofins TestAmerica Knoxville 5815 Middlebrook Pike Knoxville TN 37921 TEL (865)291-3000

Eurofins TestAmerica Knoxville

12232019Page 6 of 89457

Sample SummaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID Client Sample ID ReceivedCollectedMatrix Asset ID

140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 Air 112219 0000 112519 0800

140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 Air 112219 0000 112519 0800

140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 Air 112219 0000 112519 0800

140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 Air 112219 0000 112519 0800

140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 Air 112219 0000 112519 0800

140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 Air 112219 0000 112519 0800

140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 Air 112219 0000 112519 0800

140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 Air 112219 0000 112519 0800

140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 Air 112219 0000 112519 0800

140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 Air 112219 0000 112519 0800

140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 Air 112219 0000 112519 0800

140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 Air 112219 0000 112519 0800

Eurofins TestAmerica Knoxville

12232019Page 7 of 89458

Job Narrative140-17461-1

Sample Receipt

The samples were received on November 25 2019 at 800 AM in good condition and properly preserved The temperature of the cooler at receipt was 16ordm C

GCMS VOA

Impinger Sample Preparation and Analysis Impinger samples were analyzed for the volatile organic target analytes by purge and trap GCMS using Eurofins TestAmerica Knoxville standard operating procedure KNOX-MS-0015 based on the following method

middot SW-846 8260B ldquoVolatile Organic Compounds by Gas Chromatography Mass Spectrometry (GCMS)rdquo

Each sample is prepared by adding a known amount of sample to the purge water in a purge and trap vessel and spiking with internal standards surrogates and matrix spike analytes (as needed) Volatile compounds are introduced into the gas chromatograph by the purge and trap method The components are separated using the chromatograph and detected using a mass spectrometer which provides both qualitative and quantitative information

Impinger sample results were calculated using the following equation

Concentration μgsample = (C times DF times W times Vt) (Va)WhereC = On-column concentration μgLDF = Dilution factorW = Volume of water purged LVt = Methanol extract final volume μL Va = Volume of extract analyzed microL

Method 8260B The LCS (LCS 140-357061-A) for analytical batch 140-35903 recovered below marginal exceedance limits for Trichlorofluoromethane This is an ongoing instrument issue with LCS recoveries for this analyte The project manager approved moving forward with analysis for the current job

Method 8260B The following samples were analyzed outside of analytical holding time due to ongoing instrumentation problems Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 (140-17461-9) Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 (140-17461-10) Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 (140-17461-11) and Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 (140-17461-12)

No additional analytical or quality issues were noted other than those described above or in the DefinitionsGlossary page

Total Halogens The samples were prepared for total fluorine chlorine bromine andor iodine using SOP number KNOX-WC-0016 (based on ASTM Method E442 and SW-846 Method 5050) The sample is oxidized by combustion in an oxygen flask at atmospheric pressure or a bomb containing oxygen under pressure The liberated halogen compounds are absorbed primarily as halides in a sodium carbonatesodium bicarbonate buffer solution The combustion products are collected by repeated rinsing of the combustion apparatus and analyzed by ion chromatography in accordance with SOP KNOX-WC-0005 (based on SW-846 Method 9056) The results are calculated using the following equation

C = [(Ccom times Vcom) W] times 1000 gKg

WhereC = Concentration of analyte in the sample mgKgCcom = Concentration of analyte in the combustate mgLVcom = Total volume of combustate LW = Weight of sample combusted g

Anions in Impinger Solutions Anions are is determined in accordance to SOP KNOX-WC-0005 (based on methods 3000A and 9056) The samples were diluted a minimum of 120 in ion chromatography solvent buffer solution to reduce the methanol concentration before injection Buffer concentrate was added until the pH was 10 Samples are diluted with ion chromatography eluate solution to bring the concentrations within the calibration range when necessary Higher dilutions are applied as necessary

An aliquot of prepared sample is introduced into the ion chromatograph Anions are identified based on their retention times as compared to those of known standards Quantification is accomplished by measuring the peak response and comparing it to a calibration curve generated from known standards

12232019Page 8 of 89459

The pH of all samples were tested with pH paper QC consisted of initial CCV and LCS which also serve as initial calibration duplicate analysis for every 10 samples and closing CCV A certified thermometer was used to check the ambient temperature

12232019Page 9 of 89460

QC Association SummaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

GCMS VOA

Prep Batch 35706

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air MeOH Prep140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air MeOH Prep140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air MeOH Prep140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH Prep140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air MeOH Prep140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air MeOH Prep140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air MeOH Prep140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH PrepMB 140-357062-A Method Blank TotalNA

Air MeOH PrepLCS 140-357061-A Lab Control Sample TotalNA

Air MeOH Prep140-17461-8 MS Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17461-8 MSD Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Analysis Batch 35903

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8260B 35706140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 8260B 35706140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 8260B 35706140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 8260B 35706140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 8260B 35706140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 8260B 35706140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 8260B 35706140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 8260B 35706140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 8260B 35706140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 8260B 35706140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 8260B 35706140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 8260B 35706140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 8260B 35706MB 140-357062-A Method Blank TotalNA

Air 8260B 35706LCS 140-357061-A Lab Control Sample TotalNA

Air 8260B 35706LCS 140-357061-A Lab Control Sample TotalNA

Air 8260B 35706140-17461-8 MS Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 8260B 35706140-17461-8 MSD Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

HPLCIC

Prep Batch 35705

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH PrepMB 140-3570514-B Method Blank TotalNA

Air MeOH PrepLCS 140-3570515-B Lab Control Sample TotalNA

Air MeOH PrepLCSD 140-3570516-B Lab Control Sample Dup TotalNA

Prep Batch 35706

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air MeOH Prep140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Eurofins TestAmerica Knoxville

12232019Page 10 of 89461

QC Association SummaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

HPLCIC (Continued)

Prep Batch 35706 (Continued)

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air MeOH Prep140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH Prep140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air MeOH Prep140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air MeOH Prep140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air MeOH Prep140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH PrepMB 140-3570617-A Method Blank TotalNA

Air MeOH PrepLCS 140-3570618-A Lab Control Sample TotalNA

Air MeOH PrepLCSD 140-3570619-A Lab Control Sample Dup TotalNA

Air MeOH Prep140-17461-8 MS Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17461-8 MSD Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Prep Batch 35707

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH PrepMB 140-3570717-B Method Blank TotalNA

Air MeOH PrepLCS 140-3570718-B Lab Control Sample TotalNA

Air MeOH PrepLCSD 140-3570719-B Lab Control Sample Dup TotalNA

Prep Batch 35761

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 5050 35706140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 5050 35706140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 5050 35706140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 5050 35706140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 5050 35706140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 5050 35706140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 5050 35706140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 5050 35707MB 140-3570717-B Method Blank TotalNA

Air 5050 35707LCS 140-3570718-B Lab Control Sample TotalNA

Air 5050 35707LCSD 140-3570719-B Lab Control Sample Dup TotalNA

Prep Batch 35762

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 5050 35706140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 5050 35706140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 5050 35706140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 5050 35706140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 5050 35706140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 5050 35705MB 140-3570514-B Method Blank TotalNA

Air 5050 35705LCS 140-3570515-B Lab Control Sample TotalNA

Air 5050 35705LCSD 140-3570516-B Lab Control Sample Dup TotalNA

Air 5050 35706140-17461-8 MS Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 5050 35706140-17461-8 MSD Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Analysis Batch 36005

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35761140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9056 35761140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35761140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Eurofins TestAmerica Knoxville

12232019Page 11 of 89462

QC Association SummaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

HPLCIC (Continued)

Analysis Batch 36005 (Continued)

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35761140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9056 35761140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9056 35761140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9056 35761140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9056 35761MB 140-3570717-B Method Blank TotalNA

Air 9056 35761LCS 140-3570718-B Lab Control Sample TotalNA

Air 9056 35761LCSD 140-3570719-B Lab Control Sample Dup TotalNA

Analysis Batch 36121

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35762140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35762140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9056 35762140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9056 35762140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9056 35762140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9056 35762MB 140-3570514-B Method Blank TotalNA

Air 9056 35762LCS 140-3570515-B Lab Control Sample TotalNA

Air 9056 35762LCSD 140-3570516-B Lab Control Sample Dup TotalNA

Air 9056 35762140-17461-8 MS Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35762140-17461-8 MSD Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Analysis Batch 36210

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35706140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9056 35706140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35706140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9056 35706140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9056 35706140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9056 35706140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9056 35706140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9056 35706140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35706140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9056 35706140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9056 35706140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9056 35706140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9056 35706MB 140-3570617-A Method Blank TotalNA

Air 9056 35706LCS 140-3570618-A Lab Control Sample TotalNA

Air 9056 35706LCSD 140-3570619-A Lab Control Sample Dup TotalNA

Air 9056 35706140-17461-8 MS Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35706140-17461-8 MSD Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

General Chemistry

Analysis Batch 36086

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9041A140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9041A140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9041A140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9041A140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9041A140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9041A140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Eurofins TestAmerica Knoxville

12232019Page 12 of 89463

QC Association SummaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

General Chemistry (Continued)

Analysis Batch 36086 (Continued)

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9041A140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9041A140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9041A140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9041A140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9041A140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9041A140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9041ALCS 140-360862 Lab Control Sample TotalNA

Air 9041A140-17461-1 DU Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9041A140-17461-2 DU Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9041A140-17461-3 DU Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Eurofins TestAmerica Knoxville

12232019Page 13 of 89464

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-1Client Sample ID Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 426 562 ugSample 112919 1048 120619 2054 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

852 852 ugSample 112919 1048 120619 2054 111133-Pentafluorobutane ND

426 613 ugSample 112919 1048 120619 2054 1111-Trichloroethane ND

852 169 ugSample 112919 1048 120619 2054 1111-Trifluoro-22-dichloroethane ND

852 852 ugSample 112919 1048 120619 2054 1111-Trifluoroethane ND

426 818 ugSample 112919 1048 120619 2054 11122-Tetrachloroethane ND

852 477 ugSample 112919 1048 120619 2054 1112-Trichloro-122-trifluoroethane ND

852 852 ugSample 112919 1048 120619 2054 1112-trichloro-1-fluoroethane ND

426 443 ugSample 112919 1048 120619 2054 1112-Trichloroethane ND

852 426 ugSample 112919 1048 120619 2054 111-Dichloro-1-fluoroethane ND

852 852 ugSample 112919 1048 120619 2054 111-dichloro-22-difluoroethane ND

852 852 ugSample 112919 1048 120619 2054 111-dichloro-22-difluoroethene ND

426 511 ugSample 112919 1048 120619 2054 111-Dichloroethane ND

426 630 ugSample 112919 1048 120619 2054 111-Dichloroethene ND

426 460 ugSample 112919 1048 120619 2054 111-Dichloropropene ND

852 852 ugSample 112919 1048 120619 2054 111-Difluoroethene ND

852 852 ugSample 112919 1048 120619 2054 1122-trichloro-11-difluoroethane ND

426 136 ugSample 112919 1048 120619 2054 1123-Trichlorobenzene ND

426 106 ugSample 112919 1048 120619 2054 1123-Trichloropropane ND

426 143 ugSample 112919 1048 120619 2054 1124-Trichlorobenzene ND

426 886 ugSample 112919 1048 120619 2054 1124-Trimethylbenzene ND

852 150 ugSample 112919 1048 120619 2054 112-Dibromo-3-Chloropropane ND

426 562 ugSample 112919 1048 120619 2054 112-Dibromoethane (EDB) ND

852 852 ugSample 112919 1048 120619 2054 112-dichloro-11-difluoroethane ND

426 749 ugSample 112919 1048 120619 2054 112-Dichlorobenzene ND

426 715 ugSample 112919 1048 120619 2054 112-Dichloroethane ND

426 426 ugSample 112919 1048 120619 2054 112-Dichloropropane ND

426 886 ugSample 112919 1048 120619 2054 1135-Trimethylbenzene ND

426 732 ugSample 112919 1048 120619 2054 113-Dichlorobenzene ND

426 477 ugSample 112919 1048 120619 2054 113-Dichloropropane ND

426 852 ugSample 112919 1048 120619 2054 114-Dichlorobenzene ND

852 869 ugSample 112919 1048 120619 2054 11-Chloro-11-difluoroethane ND

852 852 ugSample 112919 1048 120619 2054 122-dichloro-11-difluoroethylmethyl

ether

ND

426 124 ugSample 112919 1048 120619 2054 122-Dichloropropane ND

170 273 ugSample 112919 1048 120619 2054 12-Butanone (MEK) ND

852 126 ugSample 112919 1048 120619 2054 12-chloro-111444-hexafluoro-2-but

ene

ND

852 852 ugSample 112919 1048 120619 2054 12-Chloro-111-Trifluoroethane ND

426 801 ugSample 112919 1048 120619 2054 12-Chlorotoluene ND

170 392 ugSample 112919 1048 120619 2054 12-Hexanone ND

372 372 ugSample 112919 1048 120619 2054 12-MTP as HFPO 820

426 886 ugSample 112919 1048 120619 2054 14-Chlorotoluene ND

426 114 ugSample 112919 1048 120619 2054 14-Isopropyltoluene ND

170 273 ugSample 112919 1048 120619 2054 14-Methyl-2-pentanone (MIBK) ND

170 101 ugSample 112919 1048 120619 2054 1Acetone ND

426 818 ugSample 112919 1048 120619 2054 1Benzene ND

426 596 ugSample 112919 1048 120619 2054 1Bromobenzene ND

Eurofins TestAmerica Knoxville

12232019Page 14 of 89465

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-1Client Sample ID Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromochloromethane ND 426 954 ugSample 112919 1048 120619 2054 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

426 732 ugSample 112919 1048 120619 2054 1Bromodichloromethane ND

426 129 ugSample 112919 1048 120619 2054 1Bromoform ND

852 494 ugSample 112919 1048 120619 2054 1Bromomethane ND

426 106 ugSample 112919 1048 120619 2054 1Carbon disulfide ND

426 562 ugSample 112919 1048 120619 2054 1Carbon tetrachloride ND

125 125 ugSample 112919 1048 120619 2054 1Carbonyl Difluoride ND

426 613 ugSample 112919 1048 120619 2054 1Chlorobenzene ND

426 920 ugSample 112919 1048 120619 2054 1Chlorodibromomethane ND

852 187 ugSample 112919 1048 120619 2054 1Chloroethane ND

426 494 ugSample 112919 1048 120619 2054 1Chloroform ND

852 354 ugSample 112919 1048 120619 2054 1Chloromethane ND

426 341 ugSample 112919 1048 120619 2054 1cis-12-Dichloroethene ND

426 732 ugSample 112919 1048 120619 2054 1cis-13-Dichloropropene ND

426 409 ugSample 112919 1048 120619 2054 1Dibromomethane ND

852 150 ugSample 112919 1048 120619 2054 1Dichlorodifluoromethane ND

426 698 ugSample 112919 1048 120619 2054 1Ethylbenzene ND

426 426 ugSample 112919 1048 120619 2054 1Heptafluoropropyl 1222-tetrafluoroethyl ether

111

426 112 ugSample 112919 1048 120619 2054 1Hexachlorobutadiene ND

409 409 ugSample 112919 1048 120619 2054 1HFPO dimer methyl ester as

HFPO-DA

ND

426 596 ugSample 112919 1048 120619 2054 1Isopropylbenzene ND

852 698 ugSample 112919 1048 120619 2054 1mp-Xylene ND

426 273 ugSample 112919 1048 120619 2054 1Methylene Chloride 687

426 204 ugSample 112919 1048 120619 2054 1Naphthalene ND

426 109 ugSample 112919 1048 120619 2054 1n-Butylbenzene ND

426 920 ugSample 112919 1048 120619 2054 1n-Propylbenzene ND

426 443 ugSample 112919 1048 120619 2054 1o-Xylene ND

426 835 ugSample 112919 1048 120619 2054 1sec-Butylbenzene ND

426 920 ugSample 112919 1048 120619 2054 1Styrene ND

426 749 ugSample 112919 1048 120619 2054 1tert-Butylbenzene ND

426 562 ugSample 112919 1048 120619 2054 1Tetrachloroethene ND

426 784 ugSample 112919 1048 120619 2054 1Toluene ND

426 443 ugSample 112919 1048 120619 2054 1trans-12-Dichloroethene ND

426 150 ugSample 112919 1048 120619 2054 1trans-13-Dichloropropene ND

426 307 ugSample 112919 1048 120619 2054 1Trichloroethene ND

852 818 ugSample 112919 1048 120619 2054 1Trichlorofluoromethane ND

852 204 ugSample 112919 1048 120619 2054 1Vinyl chloride ND

Butanoic acid heptafluoro- sodium

salt

437 T J N ugSample 113 2218-54-4 112919 1048 120619 2054 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2054112919 1048T JUnknown 489 ugSample 118

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1048 120619 2054 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 110 112919 1048 120619 2054 157 - 152

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-1Client Sample ID Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)

Dibromofluoromethane (Surr) 104 62 - 134 112919 1048 120619 2054 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Toluene-d8 (Surr) 97 112919 1048 120619 2054 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine ND 9080 4540 ugSample 112919 1048 121119 2121 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

3750 1700 ugSample 112919 1048 121719 1902 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-2Client Sample ID Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 461 608 ugSample 112919 1048 120619 2119 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

922 922 ugSample 112919 1048 120619 2119 111133-Pentafluorobutane ND

461 664 ugSample 112919 1048 120619 2119 1111-Trichloroethane ND

922 182 ugSample 112919 1048 120619 2119 1111-Trifluoro-22-dichloroethane ND

922 922 ugSample 112919 1048 120619 2119 1111-Trifluoroethane ND

461 885 ugSample 112919 1048 120619 2119 11122-Tetrachloroethane ND

922 516 ugSample 112919 1048 120619 2119 1112-Trichloro-122-trifluoroethane ND

922 922 ugSample 112919 1048 120619 2119 1112-trichloro-1-fluoroethane ND

461 479 ugSample 112919 1048 120619 2119 1112-Trichloroethane ND

922 461 ugSample 112919 1048 120619 2119 111-Dichloro-1-fluoroethane ND

922 922 ugSample 112919 1048 120619 2119 111-dichloro-22-difluoroethane ND

922 922 ugSample 112919 1048 120619 2119 111-dichloro-22-difluoroethene ND

461 553 ugSample 112919 1048 120619 2119 111-Dichloroethane ND

461 682 ugSample 112919 1048 120619 2119 111-Dichloroethene ND

461 498 ugSample 112919 1048 120619 2119 111-Dichloropropene ND

922 922 ugSample 112919 1048 120619 2119 111-Difluoroethene ND

922 922 ugSample 112919 1048 120619 2119 1122-trichloro-11-difluoroethane ND

461 147 ugSample 112919 1048 120619 2119 1123-Trichlorobenzene ND

461 114 ugSample 112919 1048 120619 2119 1123-Trichloropropane ND

461 155 ugSample 112919 1048 120619 2119 1124-Trichlorobenzene ND

461 959 ugSample 112919 1048 120619 2119 1124-Trimethylbenzene ND

922 162 ugSample 112919 1048 120619 2119 112-Dibromo-3-Chloropropane ND

461 608 ugSample 112919 1048 120619 2119 112-Dibromoethane (EDB) ND

922 922 ugSample 112919 1048 120619 2119 112-dichloro-11-difluoroethane ND

461 811 ugSample 112919 1048 120619 2119 112-Dichlorobenzene ND

461 774 ugSample 112919 1048 120619 2119 112-Dichloroethane ND

461 461 ugSample 112919 1048 120619 2119 112-Dichloropropane ND

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ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-2Client Sample ID Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

135-Trimethylbenzene ND 461 959 ugSample 112919 1048 120619 2119 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

461 793 ugSample 112919 1048 120619 2119 113-Dichlorobenzene ND

461 516 ugSample 112919 1048 120619 2119 113-Dichloropropane ND

461 922 ugSample 112919 1048 120619 2119 114-Dichlorobenzene ND

922 940 ugSample 112919 1048 120619 2119 11-Chloro-11-difluoroethane ND

922 922 ugSample 112919 1048 120619 2119 122-dichloro-11-difluoroethylmethyl

ether

ND

461 135 ugSample 112919 1048 120619 2119 122-Dichloropropane ND

184 295 ugSample 112919 1048 120619 2119 12-Butanone (MEK) ND

922 136 ugSample 112919 1048 120619 2119 12-chloro-111444-hexafluoro-2-but

ene

ND

922 922 ugSample 112919 1048 120619 2119 12-Chloro-111-Trifluoroethane ND

461 866 ugSample 112919 1048 120619 2119 12-Chlorotoluene ND

184 424 ugSample 112919 1048 120619 2119 12-Hexanone ND

403 403 ugSample 112919 1048 120619 2119 12-MTP as HFPO 819

461 959 ugSample 112919 1048 120619 2119 14-Chlorotoluene ND

461 124 ugSample 112919 1048 120619 2119 14-Isopropyltoluene ND

184 295 ugSample 112919 1048 120619 2119 14-Methyl-2-pentanone (MIBK) ND

184 109 ugSample 112919 1048 120619 2119 1Acetone ND

461 885 ugSample 112919 1048 120619 2119 1Benzene ND

461 645 ugSample 112919 1048 120619 2119 1Bromobenzene ND

461 103 ugSample 112919 1048 120619 2119 1Bromochloromethane ND

461 793 ugSample 112919 1048 120619 2119 1Bromodichloromethane ND

461 140 ugSample 112919 1048 120619 2119 1Bromoform ND

922 535 ugSample 112919 1048 120619 2119 1Bromomethane ND

461 114 ugSample 112919 1048 120619 2119 1Carbon disulfide ND

461 608 ugSample 112919 1048 120619 2119 1Carbon tetrachloride ND

135 135 ugSample 112919 1048 120619 2119 1Carbonyl Difluoride ND

461 664 ugSample 112919 1048 120619 2119 1Chlorobenzene ND

461 995 ugSample 112919 1048 120619 2119 1Chlorodibromomethane ND

922 203 ugSample 112919 1048 120619 2119 1Chloroethane ND

461 535 ugSample 112919 1048 120619 2119 1Chloroform ND

922 383 ugSample 112919 1048 120619 2119 1Chloromethane ND

461 369 ugSample 112919 1048 120619 2119 1cis-12-Dichloroethene ND

461 793 ugSample 112919 1048 120619 2119 1cis-13-Dichloropropene ND

461 442 ugSample 112919 1048 120619 2119 1Dibromomethane ND

922 162 ugSample 112919 1048 120619 2119 1Dichlorodifluoromethane ND

461 756 ugSample 112919 1048 120619 2119 1Ethylbenzene ND

461 461 ugSample 112919 1048 120619 2119 1Heptafluoropropyl 1222-tetrafluoroethyl ether

161

461 122 ugSample 112919 1048 120619 2119 1Hexachlorobutadiene ND

442 442 ugSample 112919 1048 120619 2119 1HFPO dimer methyl ester as

HFPO-DA

ND

461 645 ugSample 112919 1048 120619 2119 1Isopropylbenzene ND

922 756 ugSample 112919 1048 120619 2119 1mp-Xylene ND

461 295 ugSample 112919 1048 120619 2119 1Methylene Chloride 568

461 221 ugSample 112919 1048 120619 2119 1Naphthalene ND

461 118 ugSample 112919 1048 120619 2119 1n-Butylbenzene ND

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-2Client Sample ID Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

n-Propylbenzene ND 461 995 ugSample 112919 1048 120619 2119 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

461 479 ugSample 112919 1048 120619 2119 1o-Xylene ND

461 903 ugSample 112919 1048 120619 2119 1sec-Butylbenzene ND

461 995 ugSample 112919 1048 120619 2119 1Styrene ND

461 811 ugSample 112919 1048 120619 2119 1tert-Butylbenzene ND

461 608 ugSample 112919 1048 120619 2119 1Tetrachloroethene ND

461 848 ugSample 112919 1048 120619 2119 1Toluene ND

461 479 ugSample 112919 1048 120619 2119 1trans-12-Dichloroethene ND

461 162 ugSample 112919 1048 120619 2119 1trans-13-Dichloropropene ND

461 332 ugSample 112919 1048 120619 2119 1Trichloroethene ND

922 885 ugSample 112919 1048 120619 2119 1Trichlorofluoromethane ND

922 221 ugSample 112919 1048 120619 2119 1Vinyl chloride ND

Unknown 561 T J ugSample 113 112919 1048 120619 2119 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2119112919 1048T JUnknown 1150 ugSample 118

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1048 120619 2119 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 112919 1048 120619 2119 157 - 152

Dibromofluoromethane (Surr) 104 112919 1048 120619 2119 162 - 134

Toluene-d8 (Surr) 96 112919 1048 120619 2119 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 27900 9830 4920 ugSample 112919 1048 121119 2142 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

4060 1840 ugSample 112919 1048 121719 2006 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-3Client Sample ID Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 858 113 ugSample 112919 1048 120619 2143 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

172 172 ugSample 112919 1048 120619 2143 111133-Pentafluorobutane ND

858 124 ugSample 112919 1048 120619 2143 1111-Trichloroethane ND

172 340 ugSample 112919 1048 120619 2143 1111-Trifluoro-22-dichloroethane ND

172 172 ugSample 112919 1048 120619 2143 1111-Trifluoroethane ND

858 165 ugSample 112919 1048 120619 2143 11122-Tetrachloroethane ND

172 0961 ugSample 112919 1048 120619 2143 1112-Trichloro-122-trifluoroethane ND

172 172 ugSample 112919 1048 120619 2143 1112-trichloro-1-fluoroethane ND

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-3Client Sample ID Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

112-Trichloroethane ND 858 0892 ugSample 112919 1048 120619 2143 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

172 858 ugSample 112919 1048 120619 2143 111-Dichloro-1-fluoroethane ND

172 172 ugSample 112919 1048 120619 2143 111-dichloro-22-difluoroethane ND

172 172 ugSample 112919 1048 120619 2143 111-dichloro-22-difluoroethene ND

858 103 ugSample 112919 1048 120619 2143 111-Dichloroethane ND

858 127 ugSample 112919 1048 120619 2143 111-Dichloroethene ND

858 0926 ugSample 112919 1048 120619 2143 111-Dichloropropene ND

172 172 ugSample 112919 1048 120619 2143 111-Difluoroethene ND

172 172 ugSample 112919 1048 120619 2143 1122-trichloro-11-difluoroethane ND

858 274 ugSample 112919 1048 120619 2143 1123-Trichlorobenzene ND

858 213 ugSample 112919 1048 120619 2143 1123-Trichloropropane ND

858 288 ugSample 112919 1048 120619 2143 1124-Trichlorobenzene ND

858 178 ugSample 112919 1048 120619 2143 1124-Trimethylbenzene ND

172 302 ugSample 112919 1048 120619 2143 112-Dibromo-3-Chloropropane ND

858 113 ugSample 112919 1048 120619 2143 112-Dibromoethane (EDB) ND

172 172 ugSample 112919 1048 120619 2143 112-dichloro-11-difluoroethane ND

858 151 ugSample 112919 1048 120619 2143 112-Dichlorobenzene ND

858 144 ugSample 112919 1048 120619 2143 112-Dichloroethane ND

858 0858 ugSample 112919 1048 120619 2143 112-Dichloropropane ND

858 178 ugSample 112919 1048 120619 2143 1135-Trimethylbenzene ND

858 148 ugSample 112919 1048 120619 2143 113-Dichlorobenzene ND

858 0961 ugSample 112919 1048 120619 2143 113-Dichloropropane ND

858 172 ugSample 112919 1048 120619 2143 114-Dichlorobenzene ND

172 175 ugSample 112919 1048 120619 2143 11-Chloro-11-difluoroethane ND

172 172 ugSample 112919 1048 120619 2143 122-dichloro-11-difluoroethylmethyl

ether

ND

858 250 ugSample 112919 1048 120619 2143 122-Dichloropropane ND

343 549 ugSample 112919 1048 120619 2143 12-Butanone (MEK) ND

172 254 ugSample 112919 1048 120619 2143 12-chloro-111444-hexafluoro-2-but

ene

ND

172 172 ugSample 112919 1048 120619 2143 12-Chloro-111-Trifluoroethane ND

858 161 ugSample 112919 1048 120619 2143 12-Chlorotoluene ND

343 789 ugSample 112919 1048 120619 2143 12-Hexanone ND

749 749 ugSample 112919 1048 120619 2143 12-MTP as HFPO 604

858 178 ugSample 112919 1048 120619 2143 14-Chlorotoluene ND

858 230 ugSample 112919 1048 120619 2143 14-Isopropyltoluene ND

343 549 ugSample 112919 1048 120619 2143 14-Methyl-2-pentanone (MIBK) ND

343 202 ugSample 112919 1048 120619 2143 1Acetone ND

858 165 ugSample 112919 1048 120619 2143 1Benzene ND

858 120 ugSample 112919 1048 120619 2143 1Bromobenzene ND

858 192 ugSample 112919 1048 120619 2143 1Bromochloromethane ND

858 148 ugSample 112919 1048 120619 2143 1Bromodichloromethane ND

858 261 ugSample 112919 1048 120619 2143 1Bromoform ND

172 995 ugSample 112919 1048 120619 2143 1Bromomethane ND

858 213 ugSample 112919 1048 120619 2143 1Carbon disulfide ND

858 113 ugSample 112919 1048 120619 2143 1Carbon tetrachloride ND

251 251 ugSample 112919 1048 120619 2143 1Carbonyl Difluoride ND

858 124 ugSample 112919 1048 120619 2143 1Chlorobenzene ND

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-3Client Sample ID Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Chlorodibromomethane ND 858 185 ugSample 112919 1048 120619 2143 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

172 377 ugSample 112919 1048 120619 2143 1Chloroethane ND

858 0995 ugSample 112919 1048 120619 2143 1Chloroform ND

172 714 ugSample 112919 1048 120619 2143 1Chloromethane ND

858 0686 ugSample 112919 1048 120619 2143 1cis-12-Dichloroethene ND

858 148 ugSample 112919 1048 120619 2143 1cis-13-Dichloropropene ND

858 0823 ugSample 112919 1048 120619 2143 1Dibromomethane ND

172 302 ugSample 112919 1048 120619 2143 1Dichlorodifluoromethane ND

858 141 ugSample 112919 1048 120619 2143 1Ethylbenzene ND

858 858 ugSample 112919 1048 120619 2143 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

858 226 ugSample 112919 1048 120619 2143 1Hexachlorobutadiene ND

823 823 ugSample 112919 1048 120619 2143 1HFPO dimer methyl ester as

HFPO-DA

ND

858 120 ugSample 112919 1048 120619 2143 1Isopropylbenzene ND

172 141 ugSample 112919 1048 120619 2143 1mp-Xylene ND

858 549 ugSample 112919 1048 120619 2143 1Methylene Chloride ND

858 412 ugSample 112919 1048 120619 2143 1Naphthalene ND

858 220 ugSample 112919 1048 120619 2143 1n-Butylbenzene ND

858 185 ugSample 112919 1048 120619 2143 1n-Propylbenzene ND

858 0892 ugSample 112919 1048 120619 2143 1o-Xylene ND

858 168 ugSample 112919 1048 120619 2143 1sec-Butylbenzene ND

858 185 ugSample 112919 1048 120619 2143 1Styrene ND

858 151 ugSample 112919 1048 120619 2143 1tert-Butylbenzene ND

858 113 ugSample 112919 1048 120619 2143 1Tetrachloroethene ND

858 158 ugSample 112919 1048 120619 2143 1Toluene ND

858 0892 ugSample 112919 1048 120619 2143 1trans-12-Dichloroethene ND

858 302 ugSample 112919 1048 120619 2143 1trans-13-Dichloropropene ND

858 0618 ugSample 112919 1048 120619 2143 1Trichloroethene ND

172 165 ugSample 112919 1048 120619 2143 1Trichlorofluoromethane ND

172 412 ugSample 112919 1048 120619 2143 1Vinyl chloride ND

Unknown 201 T J ugSample 113 112919 1048 120619 2143 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2143112919 1048T JUnknown 996 ugSample 118

1120619 2143112919 1048T J NCyclohexane 110-82-7248 ugSample 442

1120619 2143112919 1048T J N1-Dodecene 112-41-4105 ugSample 1207

1120619 2143112919 1048T J NCyclohexane hexyl- 4292-75-5129 ugSample 1269

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1048 120619 2143 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 112919 1048 120619 2143 157 - 152

Dibromofluoromethane (Surr) 102 112919 1048 120619 2143 162 - 134

Toluene-d8 (Surr) 97 112919 1048 120619 2143 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 9710 1830 915 ugSample 112919 1048 121119 2203 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-3Client Sample ID Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 9056 - Anions Ion Chromatography (Continued)RL MDL

Hydrogen Fluoride ND 755 343 ugSample 112919 1048 121719 2029 20

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-4Client Sample ID Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 264 349 ugSample 112919 1048 120619 2208 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

529 529 ugSample 112919 1048 120619 2208 111133-Pentafluorobutane ND

264 381 ugSample 112919 1048 120619 2208 1111-Trichloroethane ND

529 105 ugSample 112919 1048 120619 2208 1111-Trifluoro-22-dichloroethane ND

529 529 ugSample 112919 1048 120619 2208 1111-Trifluoroethane ND

264 508 ugSample 112919 1048 120619 2208 11122-Tetrachloroethane ND

529 296 ugSample 112919 1048 120619 2208 1112-Trichloro-122-trifluoroethane ND

529 529 ugSample 112919 1048 120619 2208 1112-trichloro-1-fluoroethane ND

264 275 ugSample 112919 1048 120619 2208 1112-Trichloroethane ND

529 264 ugSample 112919 1048 120619 2208 111-Dichloro-1-fluoroethane ND

529 529 ugSample 112919 1048 120619 2208 111-dichloro-22-difluoroethane ND

529 529 ugSample 112919 1048 120619 2208 111-dichloro-22-difluoroethene ND

264 317 ugSample 112919 1048 120619 2208 111-Dichloroethane ND

264 391 ugSample 112919 1048 120619 2208 111-Dichloroethene ND

264 286 ugSample 112919 1048 120619 2208 111-Dichloropropene ND

529 529 ugSample 112919 1048 120619 2208 111-Difluoroethene ND

529 529 ugSample 112919 1048 120619 2208 1122-trichloro-11-difluoroethane ND

264 846 ugSample 112919 1048 120619 2208 1123-Trichlorobenzene ND

264 656 ugSample 112919 1048 120619 2208 1123-Trichloropropane ND

264 889 ugSample 112919 1048 120619 2208 1124-Trichlorobenzene ND

264 550 ugSample 112919 1048 120619 2208 1124-Trimethylbenzene ND

529 931 ugSample 112919 1048 120619 2208 112-Dibromo-3-Chloropropane ND

264 349 ugSample 112919 1048 120619 2208 112-Dibromoethane (EDB) ND

529 529 ugSample 112919 1048 120619 2208 112-dichloro-11-difluoroethane ND

264 465 ugSample 112919 1048 120619 2208 112-Dichlorobenzene ND

264 444 ugSample 112919 1048 120619 2208 112-Dichloroethane ND

264 264 ugSample 112919 1048 120619 2208 112-Dichloropropane ND

264 550 ugSample 112919 1048 120619 2208 1135-Trimethylbenzene ND

264 455 ugSample 112919 1048 120619 2208 113-Dichlorobenzene ND

264 296 ugSample 112919 1048 120619 2208 113-Dichloropropane ND

264 529 ugSample 112919 1048 120619 2208 114-Dichlorobenzene ND

529 539 ugSample 112919 1048 120619 2208 11-Chloro-11-difluoroethane ND

529 529 ugSample 112919 1048 120619 2208 122-dichloro-11-difluoroethylmethyl

ether

ND

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-4Client Sample ID Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

22-Dichloropropane ND 264 772 ugSample 112919 1048 120619 2208 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

106 169 ugSample 112919 1048 120619 2208 12-Butanone (MEK) ND

529 783 ugSample 112919 1048 120619 2208 12-chloro-111444-hexafluoro-2-but

ene

ND

529 529 ugSample 112919 1048 120619 2208 12-Chloro-111-Trifluoroethane ND

264 497 ugSample 112919 1048 120619 2208 12-Chlorotoluene ND

106 243 ugSample 112919 1048 120619 2208 12-Hexanone ND

231 231 ugSample 112919 1048 120619 2208 12-MTP as HFPO 636

264 550 ugSample 112919 1048 120619 2208 14-Chlorotoluene ND

264 709 ugSample 112919 1048 120619 2208 14-Isopropyltoluene ND

106 169 ugSample 112919 1048 120619 2208 14-Methyl-2-pentanone (MIBK) ND

106 624 ugSample 112919 1048 120619 2208 1Acetone ND

264 508 ugSample 112919 1048 120619 2208 1Benzene ND

264 370 ugSample 112919 1048 120619 2208 1Bromobenzene ND

264 592 ugSample 112919 1048 120619 2208 1Bromochloromethane ND

264 455 ugSample 112919 1048 120619 2208 1Bromodichloromethane ND

264 804 ugSample 112919 1048 120619 2208 1Bromoform ND

529 307 ugSample 112919 1048 120619 2208 1Bromomethane ND

264 656 ugSample 112919 1048 120619 2208 1Carbon disulfide ND

264 349 ugSample 112919 1048 120619 2208 1Carbon tetrachloride ND

777 777 ugSample 112919 1048 120619 2208 1Carbonyl Difluoride ND

264 381 ugSample 112919 1048 120619 2208 1Chlorobenzene ND

264 571 ugSample 112919 1048 120619 2208 1Chlorodibromomethane ND

529 116 ugSample 112919 1048 120619 2208 1Chloroethane ND

264 307 ugSample 112919 1048 120619 2208 1Chloroform ND

529 220 ugSample 112919 1048 120619 2208 1Chloromethane ND

264 212 ugSample 112919 1048 120619 2208 1cis-12-Dichloroethene ND

264 455 ugSample 112919 1048 120619 2208 1cis-13-Dichloropropene ND

264 254 ugSample 112919 1048 120619 2208 1Dibromomethane ND

529 931 ugSample 112919 1048 120619 2208 1Dichlorodifluoromethane ND

264 434 ugSample 112919 1048 120619 2208 1Ethylbenzene ND

264 264 ugSample 112919 1048 120619 2208 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

264 698 ugSample 112919 1048 120619 2208 1Hexachlorobutadiene ND

253 253 ugSample 112919 1048 120619 2208 1HFPO dimer methyl ester as

HFPO-DA

ND

264 370 ugSample 112919 1048 120619 2208 1Isopropylbenzene ND

529 434 ugSample 112919 1048 120619 2208 1mp-Xylene ND

264 169 ugSample 112919 1048 120619 2208 1Methylene Chloride ND

264 127 ugSample 112919 1048 120619 2208 1Naphthalene ND

264 677 ugSample 112919 1048 120619 2208 1n-Butylbenzene ND

264 571 ugSample 112919 1048 120619 2208 1n-Propylbenzene ND

264 275 ugSample 112919 1048 120619 2208 1o-Xylene ND

264 518 ugSample 112919 1048 120619 2208 1sec-Butylbenzene ND

264 571 ugSample 112919 1048 120619 2208 1Styrene ND

264 465 ugSample 112919 1048 120619 2208 1tert-Butylbenzene ND

264 349 ugSample 112919 1048 120619 2208 1Tetrachloroethene ND

264 487 ugSample 112919 1048 120619 2208 1Toluene ND

Eurofins TestAmerica Knoxville

12232019Page 22 of 89473

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-4Client Sample ID Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

trans-12-Dichloroethene ND 264 275 ugSample 112919 1048 120619 2208 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

264 931 ugSample 112919 1048 120619 2208 1trans-13-Dichloropropene ND

264 190 ugSample 112919 1048 120619 2208 1Trichloroethene ND

529 508 ugSample 112919 1048 120619 2208 1Trichlorofluoromethane ND

529 127 ugSample 112919 1048 120619 2208 1Vinyl chloride ND

Unknown 365 T J ugSample 113 112919 1048 120619 2208 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2208112919 1048T JUnknown 452 ugSample 118

1120619 2208112919 1048T J NCyclohexane 110-82-7419 ugSample 442

12-Dichloroethane-d4 (Surr) 120 70 - 160 112919 1048 120619 2208 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 110 112919 1048 120619 2208 157 - 152

Dibromofluoromethane (Surr) 104 112919 1048 120619 2208 162 - 134

Toluene-d8 (Surr) 96 112919 1048 120619 2208 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 22000 5640 2820 ugSample 112919 1048 121219 1510 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2330 1060 ugSample 112919 1048 121719 2051 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-5Client Sample ID Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 241 318 ugSample 112919 1048 120619 2232 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

482 482 ugSample 112919 1048 120619 2232 111133-Pentafluorobutane ND

241 347 ugSample 112919 1048 120619 2232 1111-Trichloroethane ND

482 954 ugSample 112919 1048 120619 2232 1111-Trifluoro-22-dichloroethane ND

482 482 ugSample 112919 1048 120619 2232 1111-Trifluoroethane ND

241 462 ugSample 112919 1048 120619 2232 11122-Tetrachloroethane ND

482 270 ugSample 112919 1048 120619 2232 1112-Trichloro-122-trifluoroethane ND

482 482 ugSample 112919 1048 120619 2232 1112-trichloro-1-fluoroethane ND

241 250 ugSample 112919 1048 120619 2232 1112-Trichloroethane ND

482 241 ugSample 112919 1048 120619 2232 111-Dichloro-1-fluoroethane ND

482 482 ugSample 112919 1048 120619 2232 111-dichloro-22-difluoroethane ND

482 482 ugSample 112919 1048 120619 2232 111-dichloro-22-difluoroethene ND

241 289 ugSample 112919 1048 120619 2232 111-Dichloroethane ND

241 356 ugSample 112919 1048 120619 2232 111-Dichloroethene ND

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-5Client Sample ID Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

11-Dichloropropene ND 241 260 ugSample 112919 1048 120619 2232 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

482 482 ugSample 112919 1048 120619 2232 111-Difluoroethene ND

482 482 ugSample 112919 1048 120619 2232 1122-trichloro-11-difluoroethane ND

241 771 ugSample 112919 1048 120619 2232 1123-Trichlorobenzene ND

241 597 ugSample 112919 1048 120619 2232 1123-Trichloropropane ND

241 809 ugSample 112919 1048 120619 2232 1124-Trichlorobenzene ND

241 501 ugSample 112919 1048 120619 2232 1124-Trimethylbenzene ND

482 848 ugSample 112919 1048 120619 2232 112-Dibromo-3-Chloropropane ND

241 318 ugSample 112919 1048 120619 2232 112-Dibromoethane (EDB) ND

482 482 ugSample 112919 1048 120619 2232 112-dichloro-11-difluoroethane ND

241 424 ugSample 112919 1048 120619 2232 112-Dichlorobenzene ND

241 405 ugSample 112919 1048 120619 2232 112-Dichloroethane ND

241 241 ugSample 112919 1048 120619 2232 112-Dichloropropane ND

241 501 ugSample 112919 1048 120619 2232 1135-Trimethylbenzene ND

241 414 ugSample 112919 1048 120619 2232 113-Dichlorobenzene ND

241 270 ugSample 112919 1048 120619 2232 113-Dichloropropane ND

241 482 ugSample 112919 1048 120619 2232 114-Dichlorobenzene ND

482 491 ugSample 112919 1048 120619 2232 11-Chloro-11-difluoroethane ND

482 482 ugSample 112919 1048 120619 2232 122-dichloro-11-difluoroethylmethyl

ether

ND

241 703 ugSample 112919 1048 120619 2232 122-Dichloropropane ND

963 154 ugSample 112919 1048 120619 2232 12-Butanone (MEK) ND

482 713 ugSample 112919 1048 120619 2232 12-chloro-111444-hexafluoro-2-but

ene

ND

482 482 ugSample 112919 1048 120619 2232 12-Chloro-111-Trifluoroethane ND

241 453 ugSample 112919 1048 120619 2232 12-Chlorotoluene ND

963 222 ugSample 112919 1048 120619 2232 12-Hexanone ND

210 210 ugSample 112919 1048 120619 2232 12-MTP as HFPO 490

241 501 ugSample 112919 1048 120619 2232 14-Chlorotoluene ND

241 645 ugSample 112919 1048 120619 2232 14-Isopropyltoluene ND

963 154 ugSample 112919 1048 120619 2232 14-Methyl-2-pentanone (MIBK) ND

963 568 ugSample 112919 1048 120619 2232 1Acetone ND

241 462 ugSample 112919 1048 120619 2232 1Benzene ND

241 337 ugSample 112919 1048 120619 2232 1Bromobenzene ND

241 540 ugSample 112919 1048 120619 2232 1Bromochloromethane ND

241 414 ugSample 112919 1048 120619 2232 1Bromodichloromethane ND

241 732 ugSample 112919 1048 120619 2232 1Bromoform ND

482 279 ugSample 112919 1048 120619 2232 1Bromomethane ND

241 597 ugSample 112919 1048 120619 2232 1Carbon disulfide ND

241 318 ugSample 112919 1048 120619 2232 1Carbon tetrachloride ND

706 706 ugSample 112919 1048 120619 2232 1Carbonyl Difluoride ND

241 347 ugSample 112919 1048 120619 2232 1Chlorobenzene ND

241 520 ugSample 112919 1048 120619 2232 1Chlorodibromomethane ND

482 106 ugSample 112919 1048 120619 2232 1Chloroethane ND

241 279 ugSample 112919 1048 120619 2232 1Chloroform ND

482 200 ugSample 112919 1048 120619 2232 1Chloromethane ND

241 193 ugSample 112919 1048 120619 2232 1cis-12-Dichloroethene ND

241 414 ugSample 112919 1048 120619 2232 1cis-13-Dichloropropene ND

Eurofins TestAmerica Knoxville

12232019Page 24 of 89475

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-5Client Sample ID Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Dibromomethane ND 241 231 ugSample 112919 1048 120619 2232 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

482 848 ugSample 112919 1048 120619 2232 1Dichlorodifluoromethane ND

241 395 ugSample 112919 1048 120619 2232 1Ethylbenzene ND

241 241 ugSample 112919 1048 120619 2232 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

241 636 ugSample 112919 1048 120619 2232 1Hexachlorobutadiene ND

231 231 ugSample 112919 1048 120619 2232 1HFPO dimer methyl ester as

HFPO-DA

ND

241 337 ugSample 112919 1048 120619 2232 1Isopropylbenzene ND

482 395 ugSample 112919 1048 120619 2232 1mp-Xylene ND

241 154 ugSample 112919 1048 120619 2232 1Methylene Chloride ND

241 116 ugSample 112919 1048 120619 2232 1Naphthalene ND

241 617 ugSample 112919 1048 120619 2232 1n-Butylbenzene ND

241 520 ugSample 112919 1048 120619 2232 1n-Propylbenzene ND

241 250 ugSample 112919 1048 120619 2232 1o-Xylene ND

241 472 ugSample 112919 1048 120619 2232 1sec-Butylbenzene ND

241 520 ugSample 112919 1048 120619 2232 1Styrene ND

241 424 ugSample 112919 1048 120619 2232 1tert-Butylbenzene ND

241 318 ugSample 112919 1048 120619 2232 1Tetrachloroethene ND

241 443 ugSample 112919 1048 120619 2232 1Toluene ND

241 250 ugSample 112919 1048 120619 2232 1trans-12-Dichloroethene ND

241 848 ugSample 112919 1048 120619 2232 1trans-13-Dichloropropene ND

241 173 ugSample 112919 1048 120619 2232 1Trichloroethene ND

482 462 ugSample 112919 1048 120619 2232 1Trichlorofluoromethane ND

482 116 ugSample 112919 1048 120619 2232 1Vinyl chloride ND

Unknown 223 T J ugSample 113 112919 1048 120619 2232 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2232112919 1048T J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-8104 ugSample 118

1120619 2232112919 1048T J NCyclohexane 110-82-7410 ugSample 442

1120619 2232112919 1048T JUnknown 309 ugSample 1317

12-Dichloroethane-d4 (Surr) 121 70 - 160 112919 1048 120619 2232 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1048 120619 2232 157 - 152

Dibromofluoromethane (Surr) 106 112919 1048 120619 2232 162 - 134

Toluene-d8 (Surr) 95 112919 1048 120619 2232 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 4360 J 5140 2570 ugSample 112919 1048 121119 2330 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2120 963 ugSample 112919 1048 121719 2114 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Eurofins TestAmerica Knoxville

12232019Page 25 of 89476

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-6Client Sample ID Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 313 413 ugSample 112919 1048 120619 2257 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

627 627 ugSample 112919 1048 120619 2257 111133-Pentafluorobutane ND

313 451 ugSample 112919 1048 120619 2257 1111-Trichloroethane ND

627 124 ugSample 112919 1048 120619 2257 1111-Trifluoro-22-dichloroethane ND

627 627 ugSample 112919 1048 120619 2257 1111-Trifluoroethane ND

313 601 ugSample 112919 1048 120619 2257 11122-Tetrachloroethane ND

627 351 ugSample 112919 1048 120619 2257 1112-Trichloro-122-trifluoroethane ND

627 627 ugSample 112919 1048 120619 2257 1112-trichloro-1-fluoroethane ND

313 326 ugSample 112919 1048 120619 2257 1112-Trichloroethane ND

627 313 ugSample 112919 1048 120619 2257 111-Dichloro-1-fluoroethane ND

627 627 ugSample 112919 1048 120619 2257 111-dichloro-22-difluoroethane ND

627 627 ugSample 112919 1048 120619 2257 111-dichloro-22-difluoroethene ND

313 376 ugSample 112919 1048 120619 2257 111-Dichloroethane ND

313 464 ugSample 112919 1048 120619 2257 111-Dichloroethene ND

313 338 ugSample 112919 1048 120619 2257 111-Dichloropropene ND

627 627 ugSample 112919 1048 120619 2257 111-Difluoroethene ND

627 627 ugSample 112919 1048 120619 2257 1122-trichloro-11-difluoroethane ND

313 100 ugSample 112919 1048 120619 2257 1123-Trichlorobenzene ND

313 777 ugSample 112919 1048 120619 2257 1123-Trichloropropane ND

313 105 ugSample 112919 1048 120619 2257 1124-Trichlorobenzene ND

313 652 ugSample 112919 1048 120619 2257 1124-Trimethylbenzene ND

627 110 ugSample 112919 1048 120619 2257 112-Dibromo-3-Chloropropane ND

313 413 ugSample 112919 1048 120619 2257 112-Dibromoethane (EDB) ND

627 627 ugSample 112919 1048 120619 2257 112-dichloro-11-difluoroethane ND

313 551 ugSample 112919 1048 120619 2257 112-Dichlorobenzene ND

313 526 ugSample 112919 1048 120619 2257 112-Dichloroethane ND

313 313 ugSample 112919 1048 120619 2257 112-Dichloropropane ND

313 652 ugSample 112919 1048 120619 2257 1135-Trimethylbenzene ND

313 539 ugSample 112919 1048 120619 2257 113-Dichlorobenzene ND

313 351 ugSample 112919 1048 120619 2257 113-Dichloropropane ND

313 627 ugSample 112919 1048 120619 2257 114-Dichlorobenzene ND

627 639 ugSample 112919 1048 120619 2257 11-Chloro-11-difluoroethane ND

627 627 ugSample 112919 1048 120619 2257 122-dichloro-11-difluoroethylmethyl

ether

ND

313 915 ugSample 112919 1048 120619 2257 122-Dichloropropane ND

125 200 ugSample 112919 1048 120619 2257 12-Butanone (MEK) ND

627 927 ugSample 112919 1048 120619 2257 12-chloro-111444-hexafluoro-2-but

ene

ND

627 627 ugSample 112919 1048 120619 2257 12-Chloro-111-Trifluoroethane ND

313 589 ugSample 112919 1048 120619 2257 12-Chlorotoluene ND

125 288 ugSample 112919 1048 120619 2257 12-Hexanone ND

273 273 ugSample 112919 1048 120619 2257 12-MTP as HFPO 672

313 652 ugSample 112919 1048 120619 2257 14-Chlorotoluene ND

313 840 ugSample 112919 1048 120619 2257 14-Isopropyltoluene ND

125 200 ugSample 112919 1048 120619 2257 14-Methyl-2-pentanone (MIBK) ND

125 739 ugSample 112919 1048 120619 2257 1Acetone ND

313 601 ugSample 112919 1048 120619 2257 1Benzene ND

313 439 ugSample 112919 1048 120619 2257 1Bromobenzene ND

Eurofins TestAmerica Knoxville

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-6Client Sample ID Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromochloromethane ND 313 702 ugSample 112919 1048 120619 2257 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

313 539 ugSample 112919 1048 120619 2257 1Bromodichloromethane ND

313 952 ugSample 112919 1048 120619 2257 1Bromoform ND

627 363 ugSample 112919 1048 120619 2257 1Bromomethane ND

313 777 ugSample 112919 1048 120619 2257 1Carbon disulfide ND

313 413 ugSample 112919 1048 120619 2257 1Carbon tetrachloride ND

916 916 ugSample 112919 1048 120619 2257 1Carbonyl Difluoride ND

313 451 ugSample 112919 1048 120619 2257 1Chlorobenzene ND

313 677 ugSample 112919 1048 120619 2257 1Chlorodibromomethane ND

627 138 ugSample 112919 1048 120619 2257 1Chloroethane ND

313 363 ugSample 112919 1048 120619 2257 1Chloroform ND

627 261 ugSample 112919 1048 120619 2257 1Chloromethane ND

313 251 ugSample 112919 1048 120619 2257 1cis-12-Dichloroethene ND

313 539 ugSample 112919 1048 120619 2257 1cis-13-Dichloropropene ND

313 301 ugSample 112919 1048 120619 2257 1Dibromomethane ND

627 110 ugSample 112919 1048 120619 2257 1Dichlorodifluoromethane ND

313 514 ugSample 112919 1048 120619 2257 1Ethylbenzene ND

313 313 ugSample 112919 1048 120619 2257 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

313 827 ugSample 112919 1048 120619 2257 1Hexachlorobutadiene ND

300 300 ugSample 112919 1048 120619 2257 1HFPO dimer methyl ester as

HFPO-DA

ND

313 439 ugSample 112919 1048 120619 2257 1Isopropylbenzene ND

627 514 ugSample 112919 1048 120619 2257 1mp-Xylene ND

313 200 ugSample 112919 1048 120619 2257 1Methylene Chloride ND

313 150 ugSample 112919 1048 120619 2257 1Naphthalene ND

313 802 ugSample 112919 1048 120619 2257 1n-Butylbenzene ND

313 677 ugSample 112919 1048 120619 2257 1n-Propylbenzene ND

313 326 ugSample 112919 1048 120619 2257 1o-Xylene ND

313 614 ugSample 112919 1048 120619 2257 1sec-Butylbenzene ND

313 677 ugSample 112919 1048 120619 2257 1Styrene ND

313 551 ugSample 112919 1048 120619 2257 1tert-Butylbenzene ND

313 413 ugSample 112919 1048 120619 2257 1Tetrachloroethene ND

313 576 ugSample 112919 1048 120619 2257 1Toluene ND

313 326 ugSample 112919 1048 120619 2257 1trans-12-Dichloroethene ND

313 110 ugSample 112919 1048 120619 2257 1trans-13-Dichloropropene ND

313 226 ugSample 112919 1048 120619 2257 1Trichloroethene ND

627 601 ugSample 112919 1048 120619 2257 1Trichlorofluoromethane ND

627 150 ugSample 112919 1048 120619 2257 1Vinyl chloride ND

Unknown 273 T J ugSample 113 112919 1048 120619 2257 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2257112919 1048T J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-8160 ugSample 118

12-Dichloroethane-d4 (Surr) 118 70 - 160 112919 1048 120619 2257 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 108 112919 1048 120619 2257 157 - 152

Eurofins TestAmerica Knoxville

12232019Page 27 of 89478

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-6Client Sample ID Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)

Dibromofluoromethane (Surr) 105 62 - 134 112919 1048 120619 2257 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Toluene-d8 (Surr) 97 112919 1048 120619 2257 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 3970 J 6680 3340 ugSample 112919 1048 121119 2350 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2760 1250 ugSample 112919 1048 121719 2137 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-7Client Sample ID Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 302 399 ugSample 112919 1048 120619 2321 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

604 604 ugSample 112919 1048 120619 2321 111133-Pentafluorobutane ND

302 435 ugSample 112919 1048 120619 2321 1111-Trichloroethane ND

604 120 ugSample 112919 1048 120619 2321 1111-Trifluoro-22-dichloroethane ND

604 604 ugSample 112919 1048 120619 2321 1111-Trifluoroethane ND

302 580 ugSample 112919 1048 120619 2321 11122-Tetrachloroethane ND

604 338 ugSample 112919 1048 120619 2321 1112-Trichloro-122-trifluoroethane ND

604 604 ugSample 112919 1048 120619 2321 1112-trichloro-1-fluoroethane ND

302 314 ugSample 112919 1048 120619 2321 1112-Trichloroethane ND

604 302 ugSample 112919 1048 120619 2321 111-Dichloro-1-fluoroethane ND

604 604 ugSample 112919 1048 120619 2321 111-dichloro-22-difluoroethane ND

604 604 ugSample 112919 1048 120619 2321 111-dichloro-22-difluoroethene ND

302 362 ugSample 112919 1048 120619 2321 111-Dichloroethane ND

302 447 ugSample 112919 1048 120619 2321 111-Dichloroethene ND

302 326 ugSample 112919 1048 120619 2321 111-Dichloropropene ND

604 604 ugSample 112919 1048 120619 2321 111-Difluoroethene ND

604 604 ugSample 112919 1048 120619 2321 1122-trichloro-11-difluoroethane ND

302 967 ugSample 112919 1048 120619 2321 1123-Trichlorobenzene ND

302 749 ugSample 112919 1048 120619 2321 1123-Trichloropropane ND

302 101 ugSample 112919 1048 120619 2321 1124-Trichlorobenzene ND

302 628 ugSample 112919 1048 120619 2321 1124-Trimethylbenzene ND

604 106 ugSample 112919 1048 120619 2321 112-Dibromo-3-Chloropropane ND

302 399 ugSample 112919 1048 120619 2321 112-Dibromoethane (EDB) ND

604 604 ugSample 112919 1048 120619 2321 112-dichloro-11-difluoroethane ND

302 532 ugSample 112919 1048 120619 2321 112-Dichlorobenzene ND

302 507 ugSample 112919 1048 120619 2321 112-Dichloroethane ND

302 302 ugSample 112919 1048 120619 2321 112-Dichloropropane ND

Eurofins TestAmerica Knoxville

12232019Page 28 of 89479

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-7Client Sample ID Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

135-Trimethylbenzene ND 302 628 ugSample 112919 1048 120619 2321 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

302 520 ugSample 112919 1048 120619 2321 113-Dichlorobenzene ND

302 338 ugSample 112919 1048 120619 2321 113-Dichloropropane ND

302 604 ugSample 112919 1048 120619 2321 114-Dichlorobenzene ND

604 616 ugSample 112919 1048 120619 2321 11-Chloro-11-difluoroethane ND

604 604 ugSample 112919 1048 120619 2321 122-dichloro-11-difluoroethylmethyl

ether

ND

302 882 ugSample 112919 1048 120619 2321 122-Dichloropropane ND

121 193 ugSample 112919 1048 120619 2321 12-Butanone (MEK) ND

604 894 ugSample 112919 1048 120619 2321 12-chloro-111444-hexafluoro-2-but

ene

ND

604 604 ugSample 112919 1048 120619 2321 12-Chloro-111-Trifluoroethane ND

302 568 ugSample 112919 1048 120619 2321 12-Chlorotoluene ND

121 278 ugSample 112919 1048 120619 2321 12-Hexanone ND

264 264 ugSample 112919 1048 120619 2321 12-MTP as HFPO 467

302 628 ugSample 112919 1048 120619 2321 14-Chlorotoluene ND

302 809 ugSample 112919 1048 120619 2321 14-Isopropyltoluene ND

121 193 ugSample 112919 1048 120619 2321 14-Methyl-2-pentanone (MIBK) ND

121 713 ugSample 112919 1048 120619 2321 1Acetone ND

302 580 ugSample 112919 1048 120619 2321 1Benzene ND

302 423 ugSample 112919 1048 120619 2321 1Bromobenzene ND

302 677 ugSample 112919 1048 120619 2321 1Bromochloromethane ND

302 520 ugSample 112919 1048 120619 2321 1Bromodichloromethane ND

302 918 ugSample 112919 1048 120619 2321 1Bromoform ND

604 350 ugSample 112919 1048 120619 2321 1Bromomethane ND

302 749 ugSample 112919 1048 120619 2321 1Carbon disulfide ND

302 399 ugSample 112919 1048 120619 2321 1Carbon tetrachloride ND

887 887 ugSample 112919 1048 120619 2321 1Carbonyl Difluoride ND

302 435 ugSample 112919 1048 120619 2321 1Chlorobenzene ND

302 652 ugSample 112919 1048 120619 2321 1Chlorodibromomethane ND

604 133 ugSample 112919 1048 120619 2321 1Chloroethane ND

302 350 ugSample 112919 1048 120619 2321 1Chloroform ND

604 251 ugSample 112919 1048 120619 2321 1Chloromethane ND

302 242 ugSample 112919 1048 120619 2321 1cis-12-Dichloroethene ND

302 520 ugSample 112919 1048 120619 2321 1cis-13-Dichloropropene ND

302 290 ugSample 112919 1048 120619 2321 1Dibromomethane ND

604 106 ugSample 112919 1048 120619 2321 1Dichlorodifluoromethane ND

302 495 ugSample 112919 1048 120619 2321 1Ethylbenzene ND

302 302 ugSample 112919 1048 120619 2321 1Heptafluoropropyl 1222-tetrafluoroethyl ether

550

302 797 ugSample 112919 1048 120619 2321 1Hexachlorobutadiene ND

290 290 ugSample 112919 1048 120619 2321 1HFPO dimer methyl ester as

HFPO-DA

ND

302 423 ugSample 112919 1048 120619 2321 1Isopropylbenzene ND

604 495 ugSample 112919 1048 120619 2321 1mp-Xylene ND

302 193 ugSample 112919 1048 120619 2321 1Methylene Chloride 116

302 145 ugSample 112919 1048 120619 2321 1Naphthalene ND

302 773 ugSample 112919 1048 120619 2321 1n-Butylbenzene ND

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ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-7Client Sample ID Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

n-Propylbenzene ND 302 652 ugSample 112919 1048 120619 2321 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

302 314 ugSample 112919 1048 120619 2321 1o-Xylene ND

302 592 ugSample 112919 1048 120619 2321 1sec-Butylbenzene ND

302 652 ugSample 112919 1048 120619 2321 1Styrene ND

302 532 ugSample 112919 1048 120619 2321 1tert-Butylbenzene ND

302 399 ugSample 112919 1048 120619 2321 1Tetrachloroethene ND

302 556 ugSample 112919 1048 120619 2321 1Toluene ND

302 314 ugSample 112919 1048 120619 2321 1trans-12-Dichloroethene ND

302 106 ugSample 112919 1048 120619 2321 1trans-13-Dichloropropene ND

302 217 ugSample 112919 1048 120619 2321 1Trichloroethene ND

604 580 ugSample 112919 1048 120619 2321 1Trichlorofluoromethane ND

604 145 ugSample 112919 1048 120619 2321 1Vinyl chloride ND

Unknown 275 T J ugSample 113 112919 1048 120619 2321 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2321112919 1048T JUnknown 2960 ugSample 118

1120619 2321112919 1048T JUnknown 572 ugSample 122

1120619 2321112919 1048T JUnknown 229 ugSample 212

1120619 2321112919 1048T JUnknown 104 ugSample 250

1120619 2321112919 1048T J NCyclohexane 110-82-7363 ugSample 442

12-Dichloroethane-d4 (Surr) 118 70 - 160 112919 1048 120619 2321 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1048 120619 2321 157 - 152

Dibromofluoromethane (Surr) 105 112919 1048 120619 2321 162 - 134

Toluene-d8 (Surr) 96 112919 1048 120619 2321 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 6490 6440 3220 ugSample 112919 1048 121219 0011 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2660 1210 ugSample 112919 1048 121819 0946 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-8Client Sample ID Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 296 390 ugSample 112919 1048 120619 2346 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

591 591 ugSample 112919 1048 120619 2346 111133-Pentafluorobutane ND

296 426 ugSample 112919 1048 120619 2346 1111-Trichloroethane ND

591 117 ugSample 112919 1048 120619 2346 1111-Trifluoro-22-dichloroethane ND

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ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-8Client Sample ID Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

111-Trifluoroethane ND 591 591 ugSample 112919 1048 120619 2346 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

296 567 ugSample 112919 1048 120619 2346 11122-Tetrachloroethane ND

591 331 ugSample 112919 1048 120619 2346 1112-Trichloro-122-trifluoroethane ND

591 591 ugSample 112919 1048 120619 2346 1112-trichloro-1-fluoroethane ND

296 307 ugSample 112919 1048 120619 2346 1112-Trichloroethane ND

591 296 ugSample 112919 1048 120619 2346 111-Dichloro-1-fluoroethane ND

591 591 ugSample 112919 1048 120619 2346 111-dichloro-22-difluoroethane ND

591 591 ugSample 112919 1048 120619 2346 111-dichloro-22-difluoroethene ND

296 355 ugSample 112919 1048 120619 2346 111-Dichloroethane ND

296 437 ugSample 112919 1048 120619 2346 111-Dichloroethene ND

296 319 ugSample 112919 1048 120619 2346 111-Dichloropropene ND

591 591 ugSample 112919 1048 120619 2346 111-Difluoroethene ND

591 591 ugSample 112919 1048 120619 2346 1122-trichloro-11-difluoroethane ND

296 946 ugSample 112919 1048 120619 2346 1123-Trichlorobenzene ND

296 733 ugSample 112919 1048 120619 2346 1123-Trichloropropane ND

296 993 ugSample 112919 1048 120619 2346 1124-Trichlorobenzene ND

296 615 ugSample 112919 1048 120619 2346 1124-Trimethylbenzene ND

591 104 ugSample 112919 1048 120619 2346 112-Dibromo-3-Chloropropane ND

296 390 ugSample 112919 1048 120619 2346 112-Dibromoethane (EDB) ND

591 591 ugSample 112919 1048 120619 2346 112-dichloro-11-difluoroethane ND

296 520 ugSample 112919 1048 120619 2346 112-Dichlorobenzene ND

296 496 ugSample 112919 1048 120619 2346 112-Dichloroethane ND

296 296 ugSample 112919 1048 120619 2346 112-Dichloropropane ND

296 615 ugSample 112919 1048 120619 2346 1135-Trimethylbenzene ND

296 508 ugSample 112919 1048 120619 2346 113-Dichlorobenzene ND

296 331 ugSample 112919 1048 120619 2346 113-Dichloropropane ND

296 591 ugSample 112919 1048 120619 2346 114-Dichlorobenzene ND

591 603 ugSample 112919 1048 120619 2346 11-Chloro-11-difluoroethane ND

591 591 ugSample 112919 1048 120619 2346 122-dichloro-11-difluoroethylmethyl

ether

ND

296 863 ugSample 112919 1048 120619 2346 122-Dichloropropane ND

118 189 ugSample 112919 1048 120619 2346 12-Butanone (MEK) ND

591 875 ugSample 112919 1048 120619 2346 12-chloro-111444-hexafluoro-2-but

ene

ND

591 591 ugSample 112919 1048 120619 2346 12-Chloro-111-Trifluoroethane ND

296 556 ugSample 112919 1048 120619 2346 12-Chlorotoluene ND

118 272 ugSample 112919 1048 120619 2346 12-Hexanone ND

259 259 ugSample 112919 1048 120619 2346 12-MTP as HFPO 610

296 615 ugSample 112919 1048 120619 2346 14-Chlorotoluene ND

296 792 ugSample 112919 1048 120619 2346 14-Isopropyltoluene ND

118 189 ugSample 112919 1048 120619 2346 14-Methyl-2-pentanone (MIBK) ND

118 697 ugSample 112919 1048 120619 2346 1Acetone ND

296 567 ugSample 112919 1048 120619 2346 1Benzene ND

296 414 ugSample 112919 1048 120619 2346 1Bromobenzene ND

296 662 ugSample 112919 1048 120619 2346 1Bromochloromethane ND

296 508 ugSample 112919 1048 120619 2346 1Bromodichloromethane ND

296 898 ugSample 112919 1048 120619 2346 1Bromoform ND

591 343 ugSample 112919 1048 120619 2346 1Bromomethane ND

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-8Client Sample ID Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Carbon disulfide ND 296 733 ugSample 112919 1048 120619 2346 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

296 390 ugSample 112919 1048 120619 2346 1Carbon tetrachloride ND

865 865 ugSample 112919 1048 120619 2346 1Carbonyl Difluoride ND

296 426 ugSample 112919 1048 120619 2346 1Chlorobenzene ND

296 638 ugSample 112919 1048 120619 2346 1Chlorodibromomethane ND

591 130 ugSample 112919 1048 120619 2346 1Chloroethane ND

296 343 ugSample 112919 1048 120619 2346 1Chloroform ND

591 246 ugSample 112919 1048 120619 2346 1Chloromethane ND

296 236 ugSample 112919 1048 120619 2346 1cis-12-Dichloroethene ND

296 508 ugSample 112919 1048 120619 2346 1cis-13-Dichloropropene ND

296 284 ugSample 112919 1048 120619 2346 1Dibromomethane ND

591 104 ugSample 112919 1048 120619 2346 1Dichlorodifluoromethane ND

296 485 ugSample 112919 1048 120619 2346 1Ethylbenzene ND

296 296 ugSample 112919 1048 120619 2346 1Heptafluoropropyl 1222-tetrafluoroethyl ether

193

296 780 ugSample 112919 1048 120619 2346 1Hexachlorobutadiene ND

284 284 ugSample 112919 1048 120619 2346 1HFPO dimer methyl ester as

HFPO-DA

ND

296 414 ugSample 112919 1048 120619 2346 1Isopropylbenzene ND

591 485 ugSample 112919 1048 120619 2346 1mp-Xylene ND

296 189 ugSample 112919 1048 120619 2346 1Methylene Chloride ND

296 142 ugSample 112919 1048 120619 2346 1Naphthalene ND

296 757 ugSample 112919 1048 120619 2346 1n-Butylbenzene ND

296 638 ugSample 112919 1048 120619 2346 1n-Propylbenzene ND

296 307 ugSample 112919 1048 120619 2346 1o-Xylene ND

296 579 ugSample 112919 1048 120619 2346 1sec-Butylbenzene ND

296 638 ugSample 112919 1048 120619 2346 1Styrene ND

296 520 ugSample 112919 1048 120619 2346 1tert-Butylbenzene ND

296 390 ugSample 112919 1048 120619 2346 1Tetrachloroethene ND

296 544 ugSample 112919 1048 120619 2346 1Toluene ND

296 307 ugSample 112919 1048 120619 2346 1trans-12-Dichloroethene ND

296 104 ugSample 112919 1048 120619 2346 1trans-13-Dichloropropene ND

296 213 ugSample 112919 1048 120619 2346 1Trichloroethene ND

591 567 ugSample 112919 1048 120619 2346 1Trichlorofluoromethane ND

591 142 ugSample 112919 1048 120619 2346 1Vinyl chloride ND

Unknown 341 T J ugSample 113 112919 1048 120619 2346 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2346112919 1048T JUnknown 2160 ugSample 119

1120619 2346112919 1048T J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-8497 ugSample 122

1120619 2346112919 1048T J NCyclohexane 110-82-7397 ugSample 442

1120619 2346112919 1048T J NCyclotetrasiloxane octamethyl- 556-67-2316 ugSample 878

1120619 2346112919 1048T J NSalicylic acid 2TMS derivative 3789-85-3307 ugSample 1136

1120619 2346112919 1048T JUnknown 563 ugSample 1317

12-Dichloroethane-d4 (Surr) 115 70 - 160 112919 1048 120619 2346 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Eurofins TestAmerica Knoxville

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-8Client Sample ID Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)

4-Bromofluorobenzene (Surr) 110 57 - 152 112919 1048 120619 2346 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Dibromofluoromethane (Surr) 104 112919 1048 120619 2346 162 - 134

Toluene-d8 (Surr) 97 112919 1048 120619 2346 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 24300 6380 3190 ugSample 112919 1048 121319 1843 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2600 1180 ugSample 112919 1048 121819 1009 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-9Client Sample ID Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND H 308 406 ugSample 112919 1048 120719 0010 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

615 615 ugSample 112919 1048 120719 0010 111133-Pentafluorobutane ND H

308 443 ugSample 112919 1048 120719 0010 1111-Trichloroethane ND H

615 122 ugSample 112919 1048 120719 0010 1111-Trifluoro-22-dichloroethane ND H

615 615 ugSample 112919 1048 120719 0010 1111-Trifluoroethane ND H

308 591 ugSample 112919 1048 120719 0010 11122-Tetrachloroethane ND H

615 345 ugSample 112919 1048 120719 0010 1112-Trichloro-122-trifluoroethane ND H

615 615 ugSample 112919 1048 120719 0010 1112-trichloro-1-fluoroethane ND H

308 320 ugSample 112919 1048 120719 0010 1112-Trichloroethane ND H

615 308 ugSample 112919 1048 120719 0010 111-Dichloro-1-fluoroethane ND H

615 615 ugSample 112919 1048 120719 0010 111-dichloro-22-difluoroethane ND H

615 615 ugSample 112919 1048 120719 0010 111-dichloro-22-difluoroethene ND H

308 369 ugSample 112919 1048 120719 0010 111-Dichloroethane ND H

308 455 ugSample 112919 1048 120719 0010 111-Dichloroethene ND H

308 332 ugSample 112919 1048 120719 0010 111-Dichloropropene ND H

615 615 ugSample 112919 1048 120719 0010 111-Difluoroethene ND H

615 615 ugSample 112919 1048 120719 0010 1122-trichloro-11-difluoroethane ND H

308 985 ugSample 112919 1048 120719 0010 1123-Trichlorobenzene ND H

308 763 ugSample 112919 1048 120719 0010 1123-Trichloropropane ND H

308 103 ugSample 112919 1048 120719 0010 1124-Trichlorobenzene ND H

308 640 ugSample 112919 1048 120719 0010 1124-Trimethylbenzene ND H

615 108 ugSample 112919 1048 120719 0010 112-Dibromo-3-Chloropropane ND H

308 406 ugSample 112919 1048 120719 0010 112-Dibromoethane (EDB) ND H

615 615 ugSample 112919 1048 120719 0010 112-dichloro-11-difluoroethane ND H

308 542 ugSample 112919 1048 120719 0010 112-Dichlorobenzene ND H

308 517 ugSample 112919 1048 120719 0010 112-Dichloroethane ND H

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-9Client Sample ID Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

12-Dichloropropane ND H 308 308 ugSample 112919 1048 120719 0010 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

308 640 ugSample 112919 1048 120719 0010 1135-Trimethylbenzene ND H

308 529 ugSample 112919 1048 120719 0010 113-Dichlorobenzene ND H

308 345 ugSample 112919 1048 120719 0010 113-Dichloropropane ND H

308 615 ugSample 112919 1048 120719 0010 114-Dichlorobenzene ND H

615 628 ugSample 112919 1048 120719 0010 11-Chloro-11-difluoroethane ND H

615 615 ugSample 112919 1048 120719 0010 122-dichloro-11-difluoroethylmethyl

ether

ND H

308 898 ugSample 112919 1048 120719 0010 122-Dichloropropane ND H

123 197 ugSample 112919 1048 120719 0010 12-Butanone (MEK) ND H

615 911 ugSample 112919 1048 120719 0010 12-chloro-111444-hexafluoro-2-but

ene

ND H

615 615 ugSample 112919 1048 120719 0010 12-Chloro-111-Trifluoroethane ND H

308 578 ugSample 112919 1048 120719 0010 12-Chlorotoluene ND H

123 283 ugSample 112919 1048 120719 0010 12-Hexanone ND H

269 269 ugSample 112919 1048 120719 0010 12-MTP as HFPO 609 H

308 640 ugSample 112919 1048 120719 0010 14-Chlorotoluene ND H

308 825 ugSample 112919 1048 120719 0010 14-Isopropyltoluene ND H

123 197 ugSample 112919 1048 120719 0010 14-Methyl-2-pentanone (MIBK) ND H

123 726 ugSample 112919 1048 120719 0010 1Acetone ND H

308 591 ugSample 112919 1048 120719 0010 1Benzene ND H

308 431 ugSample 112919 1048 120719 0010 1Bromobenzene ND H

308 689 ugSample 112919 1048 120719 0010 1Bromochloromethane ND H

308 529 ugSample 112919 1048 120719 0010 1Bromodichloromethane ND H

308 935 ugSample 112919 1048 120719 0010 1Bromoform ND H

615 357 ugSample 112919 1048 120719 0010 1Bromomethane ND H

308 763 ugSample 112919 1048 120719 0010 1Carbon disulfide ND H

308 406 ugSample 112919 1048 120719 0010 1Carbon tetrachloride ND H

901 901 ugSample 112919 1048 120719 0010 1Carbonyl Difluoride ND H

308 443 ugSample 112919 1048 120719 0010 1Chlorobenzene ND H

308 665 ugSample 112919 1048 120719 0010 1Chlorodibromomethane ND H

615 135 ugSample 112919 1048 120719 0010 1Chloroethane ND H

308 357 ugSample 112919 1048 120719 0010 1Chloroform ND H

615 256 ugSample 112919 1048 120719 0010 1Chloromethane ND H

308 246 ugSample 112919 1048 120719 0010 1cis-12-Dichloroethene ND H

308 529 ugSample 112919 1048 120719 0010 1cis-13-Dichloropropene ND H

308 295 ugSample 112919 1048 120719 0010 1Dibromomethane ND H

615 108 ugSample 112919 1048 120719 0010 1Dichlorodifluoromethane ND H

308 505 ugSample 112919 1048 120719 0010 1Ethylbenzene ND H

308 308 ugSample 112919 1048 120719 0010 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND H

308 812 ugSample 112919 1048 120719 0010 1Hexachlorobutadiene ND H

295 295 ugSample 112919 1048 120719 0010 1HFPO dimer methyl ester as

HFPO-DA

ND H

308 431 ugSample 112919 1048 120719 0010 1Isopropylbenzene ND H

615 505 ugSample 112919 1048 120719 0010 1mp-Xylene ND H

308 197 ugSample 112919 1048 120719 0010 1Methylene Chloride ND H

308 148 ugSample 112919 1048 120719 0010 1Naphthalene ND H

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-9Client Sample ID Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

n-Butylbenzene ND H 308 788 ugSample 112919 1048 120719 0010 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

308 665 ugSample 112919 1048 120719 0010 1n-Propylbenzene ND H

308 320 ugSample 112919 1048 120719 0010 1o-Xylene ND H

308 603 ugSample 112919 1048 120719 0010 1sec-Butylbenzene ND H

308 665 ugSample 112919 1048 120719 0010 1Styrene ND H

308 542 ugSample 112919 1048 120719 0010 1tert-Butylbenzene ND H

308 406 ugSample 112919 1048 120719 0010 1Tetrachloroethene ND H

308 566 ugSample 112919 1048 120719 0010 1Toluene ND H

308 320 ugSample 112919 1048 120719 0010 1trans-12-Dichloroethene ND H

308 108 ugSample 112919 1048 120719 0010 1trans-13-Dichloropropene ND H

308 222 ugSample 112919 1048 120719 0010 1Trichloroethene ND H

615 591 ugSample 112919 1048 120719 0010 1Trichlorofluoromethane ND H

615 148 ugSample 112919 1048 120719 0010 1Vinyl chloride ND H

Unknown 490 T H J ugSample 113 112919 1048 120719 0010 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120719 0010112919 1048T H J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-82290 ugSample 118

1120719 0010112919 1048T H J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-8410 ugSample 122

1120719 0010112919 1048T H J NCyclohexane 110-82-7426 ugSample 442

12-Dichloroethane-d4 (Surr) 118 70 - 160 112919 1048 120719 0010 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1048 120719 0010 157 - 152

Dibromofluoromethane (Surr) 104 112919 1048 120719 0010 162 - 134

Toluene-d8 (Surr) 97 112919 1048 120719 0010 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 3770 J 6560 3280 ugSample 112919 1048 121319 1945 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2710 1230 ugSample 112919 1048 121819 1111 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-10Client Sample ID Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND H 304 401 ugSample 112919 1048 120719 0035 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

608 608 ugSample 112919 1048 120719 0035 111133-Pentafluorobutane ND H

304 438 ugSample 112919 1048 120719 0035 1111-Trichloroethane ND H

608 120 ugSample 112919 1048 120719 0035 1111-Trifluoro-22-dichloroethane ND H

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-10Client Sample ID Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

111-Trifluoroethane ND H 608 608 ugSample 112919 1048 120719 0035 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

304 584 ugSample 112919 1048 120719 0035 11122-Tetrachloroethane ND H

608 341 ugSample 112919 1048 120719 0035 1112-Trichloro-122-trifluoroethane ND H

608 608 ugSample 112919 1048 120719 0035 1112-trichloro-1-fluoroethane ND H

304 316 ugSample 112919 1048 120719 0035 1112-Trichloroethane ND H

608 304 ugSample 112919 1048 120719 0035 111-Dichloro-1-fluoroethane ND H

608 608 ugSample 112919 1048 120719 0035 111-dichloro-22-difluoroethane ND H

608 608 ugSample 112919 1048 120719 0035 111-dichloro-22-difluoroethene ND H

304 365 ugSample 112919 1048 120719 0035 111-Dichloroethane ND H

304 450 ugSample 112919 1048 120719 0035 111-Dichloroethene ND H

304 328 ugSample 112919 1048 120719 0035 111-Dichloropropene ND H

608 608 ugSample 112919 1048 120719 0035 111-Difluoroethene ND H

608 608 ugSample 112919 1048 120719 0035 1122-trichloro-11-difluoroethane ND H

304 973 ugSample 112919 1048 120719 0035 1123-Trichlorobenzene ND H

304 754 ugSample 112919 1048 120719 0035 1123-Trichloropropane ND H

304 102 ugSample 112919 1048 120719 0035 1124-Trichlorobenzene ND H

304 632 ugSample 112919 1048 120719 0035 1124-Trimethylbenzene ND H

608 107 ugSample 112919 1048 120719 0035 112-Dibromo-3-Chloropropane ND H

304 401 ugSample 112919 1048 120719 0035 112-Dibromoethane (EDB) ND H

608 608 ugSample 112919 1048 120719 0035 112-dichloro-11-difluoroethane ND H

304 535 ugSample 112919 1048 120719 0035 112-Dichlorobenzene ND H

304 511 ugSample 112919 1048 120719 0035 112-Dichloroethane ND H

304 304 ugSample 112919 1048 120719 0035 112-Dichloropropane ND H

304 632 ugSample 112919 1048 120719 0035 1135-Trimethylbenzene ND H

304 523 ugSample 112919 1048 120719 0035 113-Dichlorobenzene ND H

304 341 ugSample 112919 1048 120719 0035 113-Dichloropropane ND H

304 608 ugSample 112919 1048 120719 0035 114-Dichlorobenzene ND H

608 620 ugSample 112919 1048 120719 0035 11-Chloro-11-difluoroethane ND H

608 608 ugSample 112919 1048 120719 0035 122-dichloro-11-difluoroethylmethyl

ether

ND H

304 888 ugSample 112919 1048 120719 0035 122-Dichloropropane ND H

122 195 ugSample 112919 1048 120719 0035 12-Butanone (MEK) ND H

608 900 ugSample 112919 1048 120719 0035 12-chloro-111444-hexafluoro-2-but

ene

ND H

608 608 ugSample 112919 1048 120719 0035 12-Chloro-111-Trifluoroethane ND H

304 572 ugSample 112919 1048 120719 0035 12-Chlorotoluene ND H

122 280 ugSample 112919 1048 120719 0035 12-Hexanone ND H

266 266 ugSample 112919 1048 120719 0035 12-MTP as HFPO 629 H

304 632 ugSample 112919 1048 120719 0035 14-Chlorotoluene ND H

304 815 ugSample 112919 1048 120719 0035 14-Isopropyltoluene ND H

122 195 ugSample 112919 1048 120719 0035 14-Methyl-2-pentanone (MIBK) ND H

122 718 ugSample 112919 1048 120719 0035 1Acetone ND H

304 584 ugSample 112919 1048 120719 0035 1Benzene ND H

304 426 ugSample 112919 1048 120719 0035 1Bromobenzene ND H

304 681 ugSample 112919 1048 120719 0035 1Bromochloromethane ND H

304 523 ugSample 112919 1048 120719 0035 1Bromodichloromethane ND H

304 924 ugSample 112919 1048 120719 0035 1Bromoform ND H

608 353 ugSample 112919 1048 120719 0035 1Bromomethane ND H

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-10Client Sample ID Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Carbon disulfide ND H 304 754 ugSample 112919 1048 120719 0035 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

304 401 ugSample 112919 1048 120719 0035 1Carbon tetrachloride ND H

894 894 ugSample 112919 1048 120719 0035 1Carbonyl Difluoride ND H

304 438 ugSample 112919 1048 120719 0035 1Chlorobenzene ND H

304 657 ugSample 112919 1048 120719 0035 1Chlorodibromomethane ND H

608 134 ugSample 112919 1048 120719 0035 1Chloroethane ND H

304 353 ugSample 112919 1048 120719 0035 1Chloroform ND H

608 253 ugSample 112919 1048 120719 0035 1Chloromethane ND H

304 243 ugSample 112919 1048 120719 0035 1cis-12-Dichloroethene ND H

304 523 ugSample 112919 1048 120719 0035 1cis-13-Dichloropropene ND H

304 292 ugSample 112919 1048 120719 0035 1Dibromomethane ND H

608 107 ugSample 112919 1048 120719 0035 1Dichlorodifluoromethane ND H

304 499 ugSample 112919 1048 120719 0035 1Ethylbenzene ND H

304 304 ugSample 112919 1048 120719 0035 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND H

304 803 ugSample 112919 1048 120719 0035 1Hexachlorobutadiene ND H

292 292 ugSample 112919 1048 120719 0035 1HFPO dimer methyl ester as

HFPO-DA

ND H

304 426 ugSample 112919 1048 120719 0035 1Isopropylbenzene ND H

608 499 ugSample 112919 1048 120719 0035 1mp-Xylene ND H

304 195 ugSample 112919 1048 120719 0035 1Methylene Chloride ND H

304 146 ugSample 112919 1048 120719 0035 1Naphthalene ND H

304 778 ugSample 112919 1048 120719 0035 1n-Butylbenzene ND H

304 657 ugSample 112919 1048 120719 0035 1n-Propylbenzene ND H

304 316 ugSample 112919 1048 120719 0035 1o-Xylene ND H

304 596 ugSample 112919 1048 120719 0035 1sec-Butylbenzene ND H

304 657 ugSample 112919 1048 120719 0035 1Styrene ND H

304 535 ugSample 112919 1048 120719 0035 1tert-Butylbenzene ND H

304 401 ugSample 112919 1048 120719 0035 1Tetrachloroethene ND H

304 559 ugSample 112919 1048 120719 0035 1Toluene ND H

304 316 ugSample 112919 1048 120719 0035 1trans-12-Dichloroethene ND H

304 107 ugSample 112919 1048 120719 0035 1trans-13-Dichloropropene ND H

304 219 ugSample 112919 1048 120719 0035 1Trichloroethene ND H

608 584 ugSample 112919 1048 120719 0035 1Trichlorofluoromethane ND H

608 146 ugSample 112919 1048 120719 0035 1Vinyl chloride ND H

Butanoic acid heptafluoro- sodium

salt

484 T H J N ugSample 113 2218-54-4 112919 1048 120719 0035 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120719 0035112919 1048T H JUnknown 1700 ugSample 118

1120719 0035112919 1048T H J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-8316 ugSample 122

1120719 0035112919 1048T H J NCyclohexane 110-82-7432 ugSample 442

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1048 120719 0035 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 110 112919 1048 120719 0035 157 - 152

Dibromofluoromethane (Surr) 103 112919 1048 120719 0035 162 - 134

Toluene-d8 (Surr) 97 112919 1048 120719 0035 171 - 139

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-10Client Sample ID Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 3540 J 6490 3240 ugSample 112919 1048 121319 2006 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2680 1220 ugSample 112919 1048 121819 1215 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-11Client Sample ID Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND H 314 414 ugSample 112919 1048 120719 0059 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

627 627 ugSample 112919 1048 120719 0059 111133-Pentafluorobutane ND H

314 452 ugSample 112919 1048 120719 0059 1111-Trichloroethane ND H

627 124 ugSample 112919 1048 120719 0059 1111-Trifluoro-22-dichloroethane ND H

627 627 ugSample 112919 1048 120719 0059 1111-Trifluoroethane ND H

314 602 ugSample 112919 1048 120719 0059 11122-Tetrachloroethane ND H

627 351 ugSample 112919 1048 120719 0059 1112-Trichloro-122-trifluoroethane ND H

627 627 ugSample 112919 1048 120719 0059 1112-trichloro-1-fluoroethane ND H

314 326 ugSample 112919 1048 120719 0059 1112-Trichloroethane ND H

627 314 ugSample 112919 1048 120719 0059 111-Dichloro-1-fluoroethane ND H

627 627 ugSample 112919 1048 120719 0059 111-dichloro-22-difluoroethane ND H

627 627 ugSample 112919 1048 120719 0059 111-dichloro-22-difluoroethene ND H

314 376 ugSample 112919 1048 120719 0059 111-Dichloroethane ND H

314 464 ugSample 112919 1048 120719 0059 111-Dichloroethene ND H

314 339 ugSample 112919 1048 120719 0059 111-Dichloropropene ND H

627 627 ugSample 112919 1048 120719 0059 111-Difluoroethene ND H

627 627 ugSample 112919 1048 120719 0059 1122-trichloro-11-difluoroethane ND H

314 100 ugSample 112919 1048 120719 0059 1123-Trichlorobenzene ND H

314 778 ugSample 112919 1048 120719 0059 1123-Trichloropropane ND H

314 105 ugSample 112919 1048 120719 0059 1124-Trichlorobenzene ND H

314 653 ugSample 112919 1048 120719 0059 1124-Trimethylbenzene ND H

627 110 ugSample 112919 1048 120719 0059 112-Dibromo-3-Chloropropane ND H

314 414 ugSample 112919 1048 120719 0059 112-Dibromoethane (EDB) ND H

627 627 ugSample 112919 1048 120719 0059 112-dichloro-11-difluoroethane ND H

314 552 ugSample 112919 1048 120719 0059 112-Dichlorobenzene ND H

314 527 ugSample 112919 1048 120719 0059 112-Dichloroethane ND H

314 314 ugSample 112919 1048 120719 0059 112-Dichloropropane ND H

314 653 ugSample 112919 1048 120719 0059 1135-Trimethylbenzene ND H

314 540 ugSample 112919 1048 120719 0059 113-Dichlorobenzene ND H

314 351 ugSample 112919 1048 120719 0059 113-Dichloropropane ND H

314 627 ugSample 112919 1048 120719 0059 114-Dichlorobenzene ND H

627 640 ugSample 112919 1048 120719 0059 11-Chloro-11-difluoroethane ND H

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-11Client Sample ID Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

22-dichloro-11-difluoroethylmethyl

ether

ND H 627 627 ugSample 112919 1048 120719 0059 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

314 916 ugSample 112919 1048 120719 0059 122-Dichloropropane ND H

125 201 ugSample 112919 1048 120719 0059 12-Butanone (MEK) ND H

627 929 ugSample 112919 1048 120719 0059 12-chloro-111444-hexafluoro-2-but

ene

ND H

627 627 ugSample 112919 1048 120719 0059 12-Chloro-111-Trifluoroethane ND H

314 590 ugSample 112919 1048 120719 0059 12-Chlorotoluene ND H

125 289 ugSample 112919 1048 120719 0059 12-Hexanone ND H

274 274 ugSample 112919 1048 120719 0059 12-MTP as HFPO 609 H

314 653 ugSample 112919 1048 120719 0059 14-Chlorotoluene ND H

314 841 ugSample 112919 1048 120719 0059 14-Isopropyltoluene ND H

125 201 ugSample 112919 1048 120719 0059 14-Methyl-2-pentanone (MIBK) ND H

125 740 ugSample 112919 1048 120719 0059 1Acetone ND H

314 602 ugSample 112919 1048 120719 0059 1Benzene ND H

314 439 ugSample 112919 1048 120719 0059 1Bromobenzene ND H

314 703 ugSample 112919 1048 120719 0059 1Bromochloromethane ND H

314 540 ugSample 112919 1048 120719 0059 1Bromodichloromethane ND H

314 954 ugSample 112919 1048 120719 0059 1Bromoform ND H

627 364 ugSample 112919 1048 120719 0059 1Bromomethane ND H

314 778 ugSample 112919 1048 120719 0059 1Carbon disulfide ND H

314 414 ugSample 112919 1048 120719 0059 1Carbon tetrachloride ND H

916 916 ugSample 112919 1048 120719 0059 1Carbonyl Difluoride ND H

314 452 ugSample 112919 1048 120719 0059 1Chlorobenzene ND H

314 678 ugSample 112919 1048 120719 0059 1Chlorodibromomethane ND H

627 138 ugSample 112919 1048 120719 0059 1Chloroethane ND H

314 364 ugSample 112919 1048 120719 0059 1Chloroform ND H

627 261 ugSample 112919 1048 120719 0059 1Chloromethane ND H

314 251 ugSample 112919 1048 120719 0059 1cis-12-Dichloroethene ND H

314 540 ugSample 112919 1048 120719 0059 1cis-13-Dichloropropene ND H

314 301 ugSample 112919 1048 120719 0059 1Dibromomethane ND H

627 110 ugSample 112919 1048 120719 0059 1Dichlorodifluoromethane ND H

314 515 ugSample 112919 1048 120719 0059 1Ethylbenzene ND H

314 314 ugSample 112919 1048 120719 0059 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND H

314 828 ugSample 112919 1048 120719 0059 1Hexachlorobutadiene ND H

301 301 ugSample 112919 1048 120719 0059 1HFPO dimer methyl ester as

HFPO-DA

ND H

314 439 ugSample 112919 1048 120719 0059 1Isopropylbenzene ND H

627 515 ugSample 112919 1048 120719 0059 1mp-Xylene ND H

314 201 ugSample 112919 1048 120719 0059 1Methylene Chloride ND H

314 151 ugSample 112919 1048 120719 0059 1Naphthalene ND H

314 803 ugSample 112919 1048 120719 0059 1n-Butylbenzene ND H

314 678 ugSample 112919 1048 120719 0059 1n-Propylbenzene ND H

314 326 ugSample 112919 1048 120719 0059 1o-Xylene ND H

314 615 ugSample 112919 1048 120719 0059 1sec-Butylbenzene ND H

314 678 ugSample 112919 1048 120719 0059 1Styrene ND H

314 552 ugSample 112919 1048 120719 0059 1tert-Butylbenzene ND H

Eurofins TestAmerica Knoxville

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-11Client Sample ID Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Tetrachloroethene ND H 314 414 ugSample 112919 1048 120719 0059 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

314 577 ugSample 112919 1048 120719 0059 1Toluene ND H

314 326 ugSample 112919 1048 120719 0059 1trans-12-Dichloroethene ND H

314 110 ugSample 112919 1048 120719 0059 1trans-13-Dichloropropene ND H

314 226 ugSample 112919 1048 120719 0059 1Trichloroethene ND H

627 602 ugSample 112919 1048 120719 0059 1Trichlorofluoromethane ND H

627 151 ugSample 112919 1048 120719 0059 1Vinyl chloride ND H

Propene hexafluoro- 421 T H J N ugSample 113 116-15-4 112919 1048 120719 0059 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120719 0059112919 1048T H JUnknown 882 ugSample 118

12-Dichloroethane-d4 (Surr) 116 70 - 160 112919 1048 120719 0059 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1048 120719 0059 157 - 152

Dibromofluoromethane (Surr) 105 112919 1048 120719 0059 162 - 134

Toluene-d8 (Surr) 96 112919 1048 120719 0059 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine ND 6690 3350 ugSample 112919 1048 121319 2027 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2760 1250 ugSample 112919 1048 121819 1238 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-12Client Sample ID Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND H 307 406 ugSample 112919 1048 120719 0124 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

615 615 ugSample 112919 1048 120719 0124 111133-Pentafluorobutane ND H

307 443 ugSample 112919 1048 120719 0124 1111-Trichloroethane ND H

615 122 ugSample 112919 1048 120719 0124 1111-Trifluoro-22-dichloroethane ND H

615 615 ugSample 112919 1048 120719 0124 1111-Trifluoroethane ND H

307 590 ugSample 112919 1048 120719 0124 11122-Tetrachloroethane ND H

615 344 ugSample 112919 1048 120719 0124 1112-Trichloro-122-trifluoroethane ND H

615 615 ugSample 112919 1048 120719 0124 1112-trichloro-1-fluoroethane ND H

307 320 ugSample 112919 1048 120719 0124 1112-Trichloroethane ND H

615 307 ugSample 112919 1048 120719 0124 111-Dichloro-1-fluoroethane ND H

615 615 ugSample 112919 1048 120719 0124 111-dichloro-22-difluoroethane ND H

615 615 ugSample 112919 1048 120719 0124 111-dichloro-22-difluoroethene ND H

307 369 ugSample 112919 1048 120719 0124 111-Dichloroethane ND H

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-12Client Sample ID Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

11-Dichloroethene ND H 307 455 ugSample 112919 1048 120719 0124 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

307 332 ugSample 112919 1048 120719 0124 111-Dichloropropene ND H

615 615 ugSample 112919 1048 120719 0124 111-Difluoroethene ND H

615 615 ugSample 112919 1048 120719 0124 1122-trichloro-11-difluoroethane ND H

307 983 ugSample 112919 1048 120719 0124 1123-Trichlorobenzene ND H

307 762 ugSample 112919 1048 120719 0124 1123-Trichloropropane ND H

307 103 ugSample 112919 1048 120719 0124 1124-Trichlorobenzene ND H

307 639 ugSample 112919 1048 120719 0124 1124-Trimethylbenzene ND H

615 108 ugSample 112919 1048 120719 0124 112-Dibromo-3-Chloropropane ND H

307 406 ugSample 112919 1048 120719 0124 112-Dibromoethane (EDB) ND H

615 615 ugSample 112919 1048 120719 0124 112-dichloro-11-difluoroethane ND H

307 541 ugSample 112919 1048 120719 0124 112-Dichlorobenzene ND H

307 516 ugSample 112919 1048 120719 0124 112-Dichloroethane ND H

307 307 ugSample 112919 1048 120719 0124 112-Dichloropropane ND H

307 639 ugSample 112919 1048 120719 0124 1135-Trimethylbenzene ND H

307 529 ugSample 112919 1048 120719 0124 113-Dichlorobenzene ND H

307 344 ugSample 112919 1048 120719 0124 113-Dichloropropane ND H

307 615 ugSample 112919 1048 120719 0124 114-Dichlorobenzene ND H

615 627 ugSample 112919 1048 120719 0124 11-Chloro-11-difluoroethane ND H

615 615 ugSample 112919 1048 120719 0124 122-dichloro-11-difluoroethylmethyl

ether

ND H

307 897 ugSample 112919 1048 120719 0124 122-Dichloropropane ND H

123 197 ugSample 112919 1048 120719 0124 12-Butanone (MEK) ND H

615 910 ugSample 112919 1048 120719 0124 12-chloro-111444-hexafluoro-2-but

ene

ND H

615 615 ugSample 112919 1048 120719 0124 12-Chloro-111-Trifluoroethane ND H

307 578 ugSample 112919 1048 120719 0124 12-Chlorotoluene ND H

123 283 ugSample 112919 1048 120719 0124 12-Hexanone ND H

268 268 ugSample 112919 1048 120719 0124 12-MTP as HFPO 583 H

307 639 ugSample 112919 1048 120719 0124 14-Chlorotoluene ND H

307 824 ugSample 112919 1048 120719 0124 14-Isopropyltoluene ND H

123 197 ugSample 112919 1048 120719 0124 14-Methyl-2-pentanone (MIBK) ND H

123 725 ugSample 112919 1048 120719 0124 1Acetone ND H

307 590 ugSample 112919 1048 120719 0124 1Benzene ND H

307 430 ugSample 112919 1048 120719 0124 1Bromobenzene ND H

307 688 ugSample 112919 1048 120719 0124 1Bromochloromethane ND H

307 529 ugSample 112919 1048 120719 0124 1Bromodichloromethane ND H

307 934 ugSample 112919 1048 120719 0124 1Bromoform ND H

615 356 ugSample 112919 1048 120719 0124 1Bromomethane ND H

307 762 ugSample 112919 1048 120719 0124 1Carbon disulfide ND H

307 406 ugSample 112919 1048 120719 0124 1Carbon tetrachloride ND H

901 901 ugSample 112919 1048 120719 0124 1Carbonyl Difluoride ND H

307 443 ugSample 112919 1048 120719 0124 1Chlorobenzene ND H

307 664 ugSample 112919 1048 120719 0124 1Chlorodibromomethane ND H

615 135 ugSample 112919 1048 120719 0124 1Chloroethane ND H

307 356 ugSample 112919 1048 120719 0124 1Chloroform ND H

615 256 ugSample 112919 1048 120719 0124 1Chloromethane ND H

307 246 ugSample 112919 1048 120719 0124 1cis-12-Dichloroethene ND H

Eurofins TestAmerica Knoxville

12232019Page 41 of 89492

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-12Client Sample ID Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

cis-13-Dichloropropene ND H 307 529 ugSample 112919 1048 120719 0124 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

307 295 ugSample 112919 1048 120719 0124 1Dibromomethane ND H

615 108 ugSample 112919 1048 120719 0124 1Dichlorodifluoromethane ND H

307 504 ugSample 112919 1048 120719 0124 1Ethylbenzene ND H

307 307 ugSample 112919 1048 120719 0124 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND H

307 811 ugSample 112919 1048 120719 0124 1Hexachlorobutadiene ND H

294 294 ugSample 112919 1048 120719 0124 1HFPO dimer methyl ester as

HFPO-DA

ND H

307 430 ugSample 112919 1048 120719 0124 1Isopropylbenzene ND H

615 504 ugSample 112919 1048 120719 0124 1mp-Xylene ND H

307 197 ugSample 112919 1048 120719 0124 1Methylene Chloride ND H

307 148 ugSample 112919 1048 120719 0124 1Naphthalene ND H

307 787 ugSample 112919 1048 120719 0124 1n-Butylbenzene ND H

307 664 ugSample 112919 1048 120719 0124 1n-Propylbenzene ND H

307 320 ugSample 112919 1048 120719 0124 1o-Xylene ND H

307 602 ugSample 112919 1048 120719 0124 1sec-Butylbenzene ND H

307 664 ugSample 112919 1048 120719 0124 1Styrene ND H

307 541 ugSample 112919 1048 120719 0124 1tert-Butylbenzene ND H

307 406 ugSample 112919 1048 120719 0124 1Tetrachloroethene ND H

307 565 ugSample 112919 1048 120719 0124 1Toluene ND H

307 320 ugSample 112919 1048 120719 0124 1trans-12-Dichloroethene ND H

307 108 ugSample 112919 1048 120719 0124 1trans-13-Dichloropropene ND H

307 221 ugSample 112919 1048 120719 0124 1Trichloroethene ND H

615 590 ugSample 112919 1048 120719 0124 1Trichlorofluoromethane ND H

615 148 ugSample 112919 1048 120719 0124 1Vinyl chloride ND H

Propene hexafluoro- 333 T H J N ugSample 113 116-15-4 112919 1048 120719 0124 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120719 0124112919 1048T H JUnknown 498 ugSample 118

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1048 120719 0124 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 112919 1048 120719 0124 157 - 152

Dibromofluoromethane (Surr) 104 112919 1048 120719 0124 162 - 134

Toluene-d8 (Surr) 96 112919 1048 120719 0124 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 28100 6560 3280 ugSample 112919 1048 121319 2047 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2700 1230 ugSample 112919 1048 121819 1259 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Eurofins TestAmerica Knoxville

12232019Page 42 of 89493

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17461-1ProjectSite VEN Stack - MM-18

Method 8260B - Volatile Organic Compounds (GCMS)Prep MeOH Prep

2501112-Tetrachloroethane ugSample

Analyte UnitsMDLRL

0330

50011133-Pentafluorobutane ugSample0500

250111-Trichloroethane ugSample0360

500111-Trifluoro-22-dichloroethane ugSample0990

500111-Trifluoroethane ugSample0500

2501122-Tetrachloroethane ugSample0480

500112-Trichloro-122-trifluoroethane ugSample0280

500112-trichloro-1-fluoroethane ugSample0500

250112-Trichloroethane ugSample0260

50011-Dichloro-1-fluoroethane ugSample250

50011-dichloro-22-difluoroethane ugSample0500

50011-dichloro-22-difluoroethene ugSample0500

25011-Dichloroethane ugSample0300

25011-Dichloroethene ugSample0370

25011-Dichloropropene ugSample0270

50011-Difluoroethene ugSample500

500122-trichloro-11-difluoroethane ugSample0500

250123-Trichlorobenzene ugSample0800

250123-Trichloropropane ugSample0620

250124-Trichlorobenzene ugSample0840

250124-Trimethylbenzene ugSample0520

50012-Dibromo-3-Chloropropane ugSample0880

25012-Dibromoethane (EDB) ugSample0330

50012-dichloro-11-difluoroethane ugSample0500

25012-Dichlorobenzene ugSample0440

25012-Dichloroethane ugSample0420

25012-Dichloropropane ugSample0250

250135-Trimethylbenzene ugSample0520

25013-Dichlorobenzene ugSample0430

25013-Dichloropropane ugSample0280

25014-Dichlorobenzene ugSample0500

5001-Chloro-11-difluoroethane ugSample0510

50022-dichloro-11-difluoroethylmethyl ether ugSample0500

25022-Dichloropropane ugSample0730

1002-Butanone (MEK) ugSample160

5002-chloro-111444-hexafluoro-2-butene ugSample0740

5002-Chloro-111-Trifluoroethane ugSample0500

2502-Chlorotoluene ugSample0470

1002-Hexanone ugSample230

2502-MTP as HFPO ugSample250

2504-Chlorotoluene ugSample0520

2504-Isopropyltoluene ugSample0670

1004-Methyl-2-pentanone (MIBK) ugSample160

100Acetone ugSample590

250Benzene ugSample0480

250Bromobenzene ugSample0350

250Bromochloromethane ugSample0560

250Bromodichloromethane ugSample0430

250Bromoform ugSample0760

500Bromomethane ugSample290

250Carbon disulfide ugSample0620

250Carbon tetrachloride ugSample0330

Eurofins TestAmerica Knoxville

12232019Page 43 of 89494

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17461-1ProjectSite VEN Stack - MM-18

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)Prep MeOH Prep

100Carbonyl Difluoride ugSample

Analyte UnitsMDLRL

100

250Chlorobenzene ugSample0360

250Chlorodibromomethane ugSample0540

500Chloroethane ugSample110

250Chloroform ugSample0290

500Chloromethane ugSample208

250cis-12-Dichloroethene ugSample0200

250cis-13-Dichloropropene ugSample0430

250Dibromomethane ugSample0240

500Dichlorodifluoromethane ugSample0880

250Ethylbenzene ugSample0410

250Heptafluoropropyl 1222-tetrafluoroethyl ether ugSample250

250Hexachlorobutadiene ugSample0660

250HFPO dimer methyl ester as HFPO-DA ugSample250

250Isopropylbenzene ugSample0350

500mp-Xylene ugSample0410

250Methylene Chloride ugSample160

250Naphthalene ugSample120

250n-Butylbenzene ugSample0640

250n-Propylbenzene ugSample0540

250o-Xylene ugSample0260

250sec-Butylbenzene ugSample0490

250Styrene ugSample0540

250tert-Butylbenzene ugSample0440

250Tetrachloroethene ugSample0330

250Toluene ugSample0460

250trans-12-Dichloroethene ugSample0260

250trans-13-Dichloropropene ugSample0880

250Trichloroethene ugSample0180

500Trichlorofluoromethane ugSample0480

500Vinyl chloride ugSample120

Method 9056 - Anions Ion ChromatographyPrep MeOH Prep

110Hydrogen Fluoride ugSample

Analyte UnitsMDLRL

500

1000Total Fluorine ugSample500

Eurofins TestAmerica Knoxville

12232019Page 44 of 89495

ANALYTICAL REPORTJob Number 140-17557-1

Job Description VEN Stack - MM-18

Contract Number LBIO-67048

ForChemours Company FC LLC The

co AECOMSabre Building Suite 300

4051 Ogletown RoadNewark DE 19713

Attention Michael Aucoin

_____________________________________________

Approved for releaseCourtney M AdkinsProject Manager II12302019 639 AM

Courtney M Adkins Project Manager II5815 Middlebrook Pike Knoxville TN 37921

(865)291-3000 courtneyadkinstestamericainccom

12302019

This report may not be reproduced except in full and with written approval from the laboratory For questions please contact the Project Manager atthe e-mail address or telephone number listed on this page

The test results in this report relate only to the samples as received by the laboratory and will meet all requirements of the methodology with anyexceptions noted This report shall not be reproduced except in full without the express written approval of the laboratory All questions should bedirected to the Eurofins TestAmerica Project Manager

This report has been electronically signed and authorized by the signatory Electronic signature is intended to be the legally binding equivalent of atraditionally handwritten signature

Eurofins TestAmerica Knoxville

5815 Middlebrook Pike Knoxville TN 37921

Tel (865) 291-3000 Fax (865) 584-4315 wwwtestamericainccom

12302019Page 1 of 70696

Table of ContentsCover Title Page 1

Data Summaries 5

Definitions 5

Method Summary 6

Sample Summary 7

Case Narrative 8

QC Association 10

Client Sample Results 13

Default Detection Limits 28

Surrogate Summary 30

QC Sample Results 31

Chronicle 38

Certification Summary 44

Manual Integration Summary 45

Organic Sample Data 55

GCMS VOA 55

Method 8260B 55Method 8260B QC Summary 56Method 8260B Sample Data 71Standards Data 188

Method 8260B ICAL Data 188Method 8260B CCAL Data 290

Raw QC Data 362Method 8260B Tune Data 362Method 8260B Blank Data 382Method 8260B LCSLCSD Data 391

12302019Page 2 of 70697

Table of ContentsMethod 8260B MSMSD Data 403

Method 8260B Run Logs 411Method 8260B Prep Data 428

HPLCIC 431

Method 9056 431Method 9056 QC Summary 432Method 9056 Sample Data 437Standards Data 455

Method 9056 ICAL Data 455Method 9056 CCAL Data 482

Raw QC Data 511Method 9056 Blank Data 511Method 9056 LCSLCSD Data 532Method 9056 MSMSD Data 538

Method 9056 Run Logs 544Method 9056 Prep Data 549

Method 9056A Total Halogens 552Method 9056A Total Halogens QC Summary 553Method 9056A Total Halogens Sample Data 558Standards Data 576

Method 9056A Total Halogens ICAL Data 576Method 9056A Total Halogens CCAL Data 601

Raw QC Data 629Method 9056A Total Halogens Blank Data 629Method 9056A Total Halogens LCSLCSD Data 654Method 9056A Total Halogens MSMSD Data 660

12302019Page 3 of 70698

Table of ContentsMethod 9056A Total Halogens Run Logs 666Method 9056A Total Halogens Prep Data 680

Inorganic Sample Data 685

General Chemistry Data 685

Gen Chem Cover Page 686

Gen Chem Sample Data 687

Gen Chem QC Data 693Gen Chem ICVCCV 693Gen Chem Duplicates 694

Gen Chem MDL 695

Gen Chem Analysis Run Log 696

Gen Chem Prep Data 697

Gen Chem Raw Data 698

Shipping and Receiving Documents 699

Client Chain of Custody 700

12302019Page 4 of 70699

DefinitionsGlossaryJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Qualifiers

GCMS VOAQualifier Description

LCS or LCSD is outside acceptance limits

Qualifier

4 MS MSD The analyte present in the original sample is greater than 4 times the matrix spike concentration therefore control limits are not

applicableE Result exceeded calibration range

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

GCMS VOA TICsQualifier Description

J Indicates an Estimated Value for TICs

Qualifier

N Presumptive evidence of material

T Result is a tentatively identified compound (TIC) and an estimated value

HPLCICQualifier Description

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

Qualifier

General ChemistryQualifier Description

HF Field parameter with a holding time of 15 minutes Test performed by laboratory at clients request

Qualifier

GlossaryThese commonly used abbreviations may or may not be present in this report

curren Listed under the D column to designate that the result is reported on a dry weight basis

Abbreviation

R Percent Recovery

CFL Contains Free Liquid

CNF Contains No Free Liquid

DER Duplicate Error Ratio (normalized absolute difference)

Dil Fac Dilution Factor

DL Detection Limit (DoDDOE)

DL RA RE IN Indicates a Dilution Re-analysis Re-extraction or additional Initial metalsanion analysis of the sample

DLC Decision Level Concentration (Radiochemistry)

EDL Estimated Detection Limit (Dioxin)

LOD Limit of Detection (DoDDOE)

LOQ Limit of Quantitation (DoDDOE)

MDA Minimum Detectable Activity (Radiochemistry)

MDC Minimum Detectable Concentration (Radiochemistry)

MDL Method Detection Limit

ML Minimum Level (Dioxin)

NC Not Calculated

ND Not Detected at the reporting limit (or MDL or EDL if shown)

PQL Practical Quantitation Limit

QC Quality Control

RER Relative Error Ratio (Radiochemistry)

RL Reporting Limit or Requested Limit (Radiochemistry)

RPD Relative Percent Difference a measure of the relative difference between two points

TEF Toxicity Equivalent Factor (Dioxin)

TEQ Toxicity Equivalent Quotient (Dioxin)

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12302019Page 5 of 706100

Method SummaryJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Method Method Description LaboratoryProtocol

SW8468260B Volatile Organic Compounds (GCMS) TAL KNX

SW8469056 Anions Ion Chromatography TAL KNX

SW8469041A pH TAL KNX

SW8465050 Bomb Preparation Method for Solid Waste TAL KNX

NoneMeOH Prep Methanol Impinger Preparation TAL KNX

Protocol References

None = None

SW846 = Test Methods For Evaluating Solid Waste PhysicalChemical Methods Third Edition November 1986 And Its Updates

Laboratory References

TAL KNX = Eurofins TestAmerica Knoxville 5815 Middlebrook Pike Knoxville TN 37921 TEL (865)291-3000

Eurofins TestAmerica Knoxville

12302019Page 6 of 706101

Sample SummaryJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID Client Sample ID ReceivedCollectedMatrix Asset ID

140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 Air 120419 0000 120719 0800

140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 Air 120419 0000 120719 0800

140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 Air 120419 0000 120719 0800

140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 Air 120419 0000 120719 0800

140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 Air 120419 0000 120719 0800

140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 Air 120419 0000 120719 0800

Eurofins TestAmerica Knoxville

12302019Page 7 of 706102

Job Narrative140-17557-1

Receipt The samples were received on December 7 2019 at 800 AM the samples arrived in good condition properly preserved and where required on ice The temperatures of the 2 coolers at receipt time were 09ordm C and 14ordm C

GCMS VOA Impinger Sample Preparation and Analysis Impinger samples were analyzed for the volatile organic target analytes by purge and trap GCMS using Eurofins TestAmerica Knoxville standard operating procedure KNOX-MS-0015 based on the following method

middot SW-846 8260B ldquoVolatile Organic Compounds by Gas Chromatography Mass Spectrometry (GCMS)rdquo

Each sample is prepared by adding a known amount of sample to the purge water in a purge and trap vessel and spiking with internal standards surrogates and matrix spike analytes (as needed) Volatile compounds are introduced into the gas chromatograph by the purge and trap method The components are separated using the chromatograph and detected using a mass spectrometer which provides both qualitative and quantitative information

Impinger sample results were calculated using the following equation

Concentration μgsample = (C times DF times W times Vt) (Va)WhereC = On-column concentration μgLDF = Dilution factorW = Volume of water purged LVt = Methanol extract final volume μL Va = Volume of extract analyzed microL

Method 8260B (LCS 140-359561-A) for analytical batch 140-35964 recovered below marginal exceedance limits for Trichlorofluoromethane This is an ongoing instrument issue with LCS recoveries for this analyte The project manager approved moving forward with analysis for the current job

Method 8260B The following samples were diluted to bring the concentration of target analytes within the calibration range Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 (140-17557-1) Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 (140-17557-2) Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 (140-17557-3) Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 (140-17557-4) Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 (140-17557-5) and Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 (140-17557-6) Elevated reporting limits (RLs) are provided

Method 8260B The continuing calibration verification (CCV) associated with batch 140-35990 recovered above the upper control limit for Chloroethane The samples associated with this CCV were non-detects for the affected analytes therefore the data have been reported

No additional analytical or quality issues were noted other than those described above or in the DefinitionsGlossary page

General Chemistry Total Halogens The samples were prepared for total fluorine chlorine bromine andor iodine using SOP number KNOX-WC-0016 (based on ASTM Method E442 and SW-846 Method 5050) The sample is oxidized by combustion in an oxygen flask at atmospheric pressure or a bomb containing oxygen under pressure The liberated halogen compounds are absorbed primarily as halides in a sodium carbonatesodium bicarbonate buffer solution The combustion products are collected by repeated rinsing of the combustion apparatus and analyzed by ion chromatography in accordance with SOP KNOX-WC-0005 (based on SW-846 Method 9056) The results are calculated using the following equation

C = [(Ccom times Vcom) W] times 1000 gKg

WhereC = Concentration of analyte in the sample mgKgCcom = Concentration of analyte in the combustate mgLVcom = Total volume of combustate LW = Weight of sample combusted g

Anions in Impinger Solutions Anions are is determined in accordance to SOP KNOX-WC-0005 (based on methods 3000A and 9056) The samples were diluted a minimum of 120 in ion chromatography solvent buffer solution to reduce the methanol concentration before injection Buffer concentrate was added until the pH was 10 Samples are diluted with ion chromatography eluate solution to bring the

12302019Page 8 of 706103

concentrations within the calibration range when necessary Higher dilutions are applied as necessary

An aliquot of prepared sample is introduced into the ion chromatograph Anions are identified based on their retention times as compared to those of known standards Quantification is accomplished by measuring the peak response and comparing it to a calibration curve generated from known standards

The pH of all samples were tested with pH paper QC consisted of initial CCV and LCS which also serve as initial calibration duplicate analysis for every 10 samples and closing CCV A certified thermometer was used to check the ambient temperature

No additional analytical or quality issues were noted other than those described above or in the DefinitionsGlossary page

12302019Page 9 of 706104

QC Association SummaryJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

GCMS VOA

Prep Batch 35956

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air MeOH Prep140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17557-2 - DL Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17557-3 - DL Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air MeOH Prep140-17557-4 - DL Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air MeOH Prep140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air MeOH Prep140-17557-6 - DL Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH Prep140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH PrepMB 140-359562-A Method Blank TotalNA

Air MeOH PrepLCS 140-359561-A Lab Control Sample TotalNA

Air MeOH Prep140-17557-2 MS Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17557-2 MSD Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Analysis Batch 35964

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8260B 35956140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 8260B 35956140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 8260B 35956140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 8260B 35956140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 8260B 35956140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 8260B 35956140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 8260B 35956MB 140-359562-A Method Blank TotalNA

Air 8260B 35956LCS 140-359561-A Lab Control Sample TotalNA

Air 8260B 35956LCS 140-359561-A Lab Control Sample TotalNA

Analysis Batch 35990

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8260B 35956140-17557-2 - DL Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 8260B 35956140-17557-3 - DL Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 8260B 35956140-17557-4 - DL Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 8260B 35956140-17557-6 - DL Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 8260B 35956140-17557-2 MS Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 8260B 35956140-17557-2 MSD Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

HPLCIC

Prep Batch 35956

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air MeOH Prep140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air MeOH Prep140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air MeOH Prep140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH PrepMB 140-3595619-A Method Blank TotalNA

Air MeOH PrepMB 140-3595619-B Method Blank TotalNA

Air MeOH PrepLCS 140-3595620-A Lab Control Sample TotalNA

Air MeOH PrepLCS 140-3595620-B Lab Control Sample TotalNA

Air MeOH PrepLCSD 140-3595621-A Lab Control Sample Dup TotalNA

Eurofins TestAmerica Knoxville

12302019Page 10 of 706105

QC Association SummaryJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

HPLCIC (Continued)

Prep Batch 35956 (Continued)

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH PrepLCSD 140-3595621-B Lab Control Sample Dup TotalNA

Air MeOH Prep140-17557-2 MS Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17557-2 MSD Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Prep Batch 35976

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 5050 35956140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 5050 35956140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 5050 35956140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 5050 35956140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 5050 35956140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 5050 35956140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 5050 35956MB 140-3595619-B Method Blank TotalNA

Air 5050 35956LCS 140-3595620-B Lab Control Sample TotalNA

Air 5050 35956LCSD 140-3595621-B Lab Control Sample Dup TotalNA

Air 5050 35956140-17557-2 MS Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 5050 35956140-17557-2 MSD Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Analysis Batch 36294

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35976140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9056 35976140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35976140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9056 35976140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9056 35976140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9056 35976140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9056 35976MB 140-3595619-B Method Blank TotalNA

Air 9056 35976LCS 140-3595620-B Lab Control Sample TotalNA

Air 9056 35976LCSD 140-3595621-B Lab Control Sample Dup TotalNA

Air 9056 35976140-17557-2 MS Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35976140-17557-2 MSD Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Analysis Batch 36325

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35956140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9056 35956140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35956140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9056 35956140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9056 35956140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9056 35956140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9056 35956MB 140-3595619-A Method Blank TotalNA

Air 9056 35956LCS 140-3595620-A Lab Control Sample TotalNA

Air 9056 35956LCSD 140-3595621-A Lab Control Sample Dup TotalNA

Air 9056 35956140-17557-2 MS Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35956140-17557-2 MSD Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

General Chemistry

Analysis Batch 36156

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9041A140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Eurofins TestAmerica Knoxville

12302019Page 11 of 706106

QC Association SummaryJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

General Chemistry (Continued)

Analysis Batch 36156 (Continued)

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9041A140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9041A140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9041A140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9041A140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9041A140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9041ALCS 140-361562 Lab Control Sample TotalNA

Air 9041A140-17557-1 DU Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Eurofins TestAmerica Knoxville

12302019Page 12 of 706107

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-1Client Sample ID Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 315 415 ugSample 121019 0947 121019 2258 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

629 629 ugSample 121019 0947 121019 2258 111133-Pentafluorobutane ND

315 453 ugSample 121019 0947 121019 2258 1111-Trichloroethane ND

629 125 ugSample 121019 0947 121019 2258 1111-Trifluoro-22-dichloroethane ND

629 629 ugSample 121019 0947 121019 2258 1111-Trifluoroethane ND

315 604 ugSample 121019 0947 121019 2258 11122-Tetrachloroethane ND

629 352 ugSample 121019 0947 121019 2258 1112-Trichloro-122-trifluoroethane ND

629 629 ugSample 121019 0947 121019 2258 1112-trichloro-1-fluoroethane ND

315 327 ugSample 121019 0947 121019 2258 1112-Trichloroethane ND

629 315 ugSample 121019 0947 121019 2258 111-Dichloro-1-fluoroethane ND

629 629 ugSample 121019 0947 121019 2258 111-dichloro-22-difluoroethane ND

629 629 ugSample 121019 0947 121019 2258 111-dichloro-22-difluoroethene ND

315 378 ugSample 121019 0947 121019 2258 111-Dichloroethane ND

315 466 ugSample 121019 0947 121019 2258 111-Dichloroethene ND

315 340 ugSample 121019 0947 121019 2258 111-Dichloropropene ND

629 629 ugSample 121019 0947 121019 2258 111-Difluoroethene ND

629 629 ugSample 121019 0947 121019 2258 1122-trichloro-11-difluoroethane ND

315 101 ugSample 121019 0947 121019 2258 1123-Trichlorobenzene ND

315 780 ugSample 121019 0947 121019 2258 1123-Trichloropropane ND

315 106 ugSample 121019 0947 121019 2258 1124-Trichlorobenzene ND

315 654 ugSample 121019 0947 121019 2258 1124-Trimethylbenzene ND

629 111 ugSample 121019 0947 121019 2258 112-Dibromo-3-Chloropropane ND

315 415 ugSample 121019 0947 121019 2258 112-Dibromoethane (EDB) ND

629 629 ugSample 121019 0947 121019 2258 112-dichloro-11-difluoroethane ND

315 554 ugSample 121019 0947 121019 2258 112-Dichlorobenzene ND

315 529 ugSample 121019 0947 121019 2258 112-Dichloroethane ND

315 315 ugSample 121019 0947 121019 2258 112-Dichloropropane ND

315 654 ugSample 121019 0947 121019 2258 1135-Trimethylbenzene ND

315 541 ugSample 121019 0947 121019 2258 113-Dichlorobenzene ND

315 352 ugSample 121019 0947 121019 2258 113-Dichloropropane ND

315 629 ugSample 121019 0947 121019 2258 114-Dichlorobenzene ND

629 642 ugSample 121019 0947 121019 2258 11-Chloro-11-difluoroethane ND

629 629 ugSample 121019 0947 121019 2258 122-dichloro-11-difluoroethylmethyl

ether

ND

315 919 ugSample 121019 0947 121019 2258 122-Dichloropropane ND

126 201 ugSample 121019 0947 121019 2258 12-Butanone (MEK) ND

629 931 ugSample 121019 0947 121019 2258 12-chloro-111444-hexafluoro-2-but

ene

ND

629 629 ugSample 121019 0947 121019 2258 12-Chloro-111-Trifluoroethane ND

315 592 ugSample 121019 0947 121019 2258 12-Chlorotoluene ND

126 289 ugSample 121019 0947 121019 2258 12-Hexanone ND

275 275 ugSample 121019 0947 121019 2258 12-MTP as HFPO 1460

315 654 ugSample 121019 0947 121019 2258 14-Chlorotoluene ND

315 843 ugSample 121019 0947 121019 2258 14-Isopropyltoluene ND

126 201 ugSample 121019 0947 121019 2258 14-Methyl-2-pentanone (MIBK) ND

126 743 ugSample 121019 0947 121019 2258 1Acetone ND

315 604 ugSample 121019 0947 121019 2258 1Benzene ND

315 441 ugSample 121019 0947 121019 2258 1Bromobenzene ND

Eurofins TestAmerica Knoxville

12302019Page 13 of 706108

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-1Client Sample ID Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromochloromethane ND 315 705 ugSample 121019 0947 121019 2258 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

315 541 ugSample 121019 0947 121019 2258 1Bromodichloromethane ND

315 957 ugSample 121019 0947 121019 2258 1Bromoform ND

629 365 ugSample 121019 0947 121019 2258 1Bromomethane ND

315 780 ugSample 121019 0947 121019 2258 1Carbon disulfide ND

315 415 ugSample 121019 0947 121019 2258 1Carbon tetrachloride ND

923 923 ugSample 121019 0947 121019 2258 1Carbonyl Difluoride ND

315 453 ugSample 121019 0947 121019 2258 1Chlorobenzene ND

315 680 ugSample 121019 0947 121019 2258 1Chlorodibromomethane ND

629 138 ugSample 121019 0947 121019 2258 1Chloroethane ND

315 365 ugSample 121019 0947 121019 2258 1Chloroform ND

629 262 ugSample 121019 0947 121019 2258 1Chloromethane ND

315 252 ugSample 121019 0947 121019 2258 1cis-12-Dichloroethene ND

315 541 ugSample 121019 0947 121019 2258 1cis-13-Dichloropropene ND

315 302 ugSample 121019 0947 121019 2258 1Dibromomethane ND

629 111 ugSample 121019 0947 121019 2258 1Dichlorodifluoromethane ND

315 516 ugSample 121019 0947 121019 2258 1Ethylbenzene ND

315 315 ugSample 121019 0947 121019 2258 1Heptafluoropropyl 1222-tetrafluoroethyl ether

149

315 831 ugSample 121019 0947 121019 2258 1Hexachlorobutadiene ND

302 302 ugSample 121019 0947 121019 2258 1HFPO dimer methyl ester as

HFPO-DA

ND

315 441 ugSample 121019 0947 121019 2258 1Isopropylbenzene ND

629 516 ugSample 121019 0947 121019 2258 1mp-Xylene ND

315 201 ugSample 121019 0947 121019 2258 1Methylene Chloride 373

315 151 ugSample 121019 0947 121019 2258 1Naphthalene ND

315 806 ugSample 121019 0947 121019 2258 1n-Butylbenzene ND

315 680 ugSample 121019 0947 121019 2258 1n-Propylbenzene ND

315 327 ugSample 121019 0947 121019 2258 1o-Xylene ND

315 617 ugSample 121019 0947 121019 2258 1sec-Butylbenzene ND

315 680 ugSample 121019 0947 121019 2258 1Styrene ND

315 554 ugSample 121019 0947 121019 2258 1tert-Butylbenzene ND

315 415 ugSample 121019 0947 121019 2258 1Tetrachloroethene ND

315 579 ugSample 121019 0947 121019 2258 1Toluene ND

315 327 ugSample 121019 0947 121019 2258 1trans-12-Dichloroethene ND

315 111 ugSample 121019 0947 121019 2258 1trans-13-Dichloropropene ND

315 227 ugSample 121019 0947 121019 2258 1Trichloroethene ND

629 604 ugSample 121019 0947 121019 2258 1Trichlorofluoromethane ND

629 151 ugSample 121019 0947 121019 2258 1Vinyl chloride ND

Unknown 318 T J ugSample 113 121019 0947 121019 2258 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1121019 2258121019 0947T JUnknown 626 ugSample 118

12-Dichloroethane-d4 (Surr) 121 70 - 160 121019 0947 121019 2258 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 106 121019 0947 121019 2258 157 - 152

Dibromofluoromethane (Surr) 109 121019 0947 121019 2258 162 - 134

Eurofins TestAmerica Knoxville

12302019Page 14 of 706109

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-1Client Sample ID Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)

Toluene-d8 (Surr) 89 71 - 139 121019 0947 121019 2258 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 98200 13400 6710 ugSample 121019 0947 122319 1201 2

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2770 1260 ugSample 121019 0947 122419 0117 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 40 HF SU 121719 1337 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17557-2Client Sample ID Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 305 402 ugSample 121019 0947 121019 2234 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

610 610 ugSample 121019 0947 121019 2234 111133-Pentafluorobutane ND

305 439 ugSample 121019 0947 121019 2234 1111-Trichloroethane ND

610 121 ugSample 121019 0947 121019 2234 1111-Trifluoro-22-dichloroethane ND

610 610 ugSample 121019 0947 121019 2234 1111-Trifluoroethane ND

305 585 ugSample 121019 0947 121019 2234 11122-Tetrachloroethane ND

610 341 ugSample 121019 0947 121019 2234 1112-Trichloro-122-trifluoroethane ND

610 610 ugSample 121019 0947 121019 2234 1112-trichloro-1-fluoroethane ND

305 317 ugSample 121019 0947 121019 2234 1112-Trichloroethane ND

610 305 ugSample 121019 0947 121019 2234 111-Dichloro-1-fluoroethane ND

610 610 ugSample 121019 0947 121019 2234 111-dichloro-22-difluoroethane ND

610 610 ugSample 121019 0947 121019 2234 111-dichloro-22-difluoroethene ND

305 366 ugSample 121019 0947 121019 2234 111-Dichloroethane ND

305 451 ugSample 121019 0947 121019 2234 111-Dichloroethene ND

305 329 ugSample 121019 0947 121019 2234 111-Dichloropropene ND

610 610 ugSample 121019 0947 121019 2234 111-Difluoroethene ND

610 610 ugSample 121019 0947 121019 2234 1122-trichloro-11-difluoroethane ND

305 976 ugSample 121019 0947 121019 2234 1123-Trichlorobenzene ND

305 756 ugSample 121019 0947 121019 2234 1123-Trichloropropane ND

305 102 ugSample 121019 0947 121019 2234 1124-Trichlorobenzene ND

305 634 ugSample 121019 0947 121019 2234 1124-Trimethylbenzene ND

610 107 ugSample 121019 0947 121019 2234 112-Dibromo-3-Chloropropane ND

305 402 ugSample 121019 0947 121019 2234 112-Dibromoethane (EDB) ND

610 610 ugSample 121019 0947 121019 2234 112-dichloro-11-difluoroethane ND

305 537 ugSample 121019 0947 121019 2234 112-Dichlorobenzene ND

305 512 ugSample 121019 0947 121019 2234 112-Dichloroethane ND

305 305 ugSample 121019 0947 121019 2234 112-Dichloropropane ND

305 634 ugSample 121019 0947 121019 2234 1135-Trimethylbenzene ND

Eurofins TestAmerica Knoxville

12302019Page 15 of 706110

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-2Client Sample ID Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

13-Dichlorobenzene ND 305 524 ugSample 121019 0947 121019 2234 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

305 341 ugSample 121019 0947 121019 2234 113-Dichloropropane ND

305 610 ugSample 121019 0947 121019 2234 114-Dichlorobenzene ND

610 622 ugSample 121019 0947 121019 2234 11-Chloro-11-difluoroethane ND

610 610 ugSample 121019 0947 121019 2234 122-dichloro-11-difluoroethylmethyl

ether

ND

305 890 ugSample 121019 0947 121019 2234 122-Dichloropropane ND

122 195 ugSample 121019 0947 121019 2234 12-Butanone (MEK) ND

610 903 ugSample 121019 0947 121019 2234 12-chloro-111444-hexafluoro-2-but

ene

ND

610 610 ugSample 121019 0947 121019 2234 12-Chloro-111-Trifluoroethane ND

305 573 ugSample 121019 0947 121019 2234 12-Chlorotoluene ND

122 281 ugSample 121019 0947 121019 2234 12-Hexanone ND

266 266 ugSample 121019 0947 121019 2234 12-MTP as HFPO 2430 E

305 634 ugSample 121019 0947 121019 2234 14-Chlorotoluene ND

305 817 ugSample 121019 0947 121019 2234 14-Isopropyltoluene ND

122 195 ugSample 121019 0947 121019 2234 14-Methyl-2-pentanone (MIBK) ND

122 720 ugSample 121019 0947 121019 2234 1Acetone ND

305 585 ugSample 121019 0947 121019 2234 1Benzene ND

305 427 ugSample 121019 0947 121019 2234 1Bromobenzene ND

305 683 ugSample 121019 0947 121019 2234 1Bromochloromethane ND

305 524 ugSample 121019 0947 121019 2234 1Bromodichloromethane ND

305 927 ugSample 121019 0947 121019 2234 1Bromoform ND

610 354 ugSample 121019 0947 121019 2234 1Bromomethane ND

305 756 ugSample 121019 0947 121019 2234 1Carbon disulfide ND

305 402 ugSample 121019 0947 121019 2234 1Carbon tetrachloride ND

894 894 ugSample 121019 0947 121019 2234 1Carbonyl Difluoride ND

305 439 ugSample 121019 0947 121019 2234 1Chlorobenzene ND

305 659 ugSample 121019 0947 121019 2234 1Chlorodibromomethane ND

610 134 ugSample 121019 0947 121019 2234 1Chloroethane ND

305 354 ugSample 121019 0947 121019 2234 1Chloroform ND

610 254 ugSample 121019 0947 121019 2234 1Chloromethane ND

305 244 ugSample 121019 0947 121019 2234 1cis-12-Dichloroethene ND

305 524 ugSample 121019 0947 121019 2234 1cis-13-Dichloropropene ND

305 293 ugSample 121019 0947 121019 2234 1Dibromomethane ND

610 107 ugSample 121019 0947 121019 2234 1Dichlorodifluoromethane ND

305 500 ugSample 121019 0947 121019 2234 1Ethylbenzene ND

305 305 ugSample 121019 0947 121019 2234 1Heptafluoropropyl 1222-tetrafluoroethyl ether

953

305 805 ugSample 121019 0947 121019 2234 1Hexachlorobutadiene ND

293 293 ugSample 121019 0947 121019 2234 1HFPO dimer methyl ester as

HFPO-DA

ND

305 427 ugSample 121019 0947 121019 2234 1Isopropylbenzene ND

610 500 ugSample 121019 0947 121019 2234 1mp-Xylene ND

305 195 ugSample 121019 0947 121019 2234 1Methylene Chloride 211 J

305 146 ugSample 121019 0947 121019 2234 1Naphthalene ND

305 781 ugSample 121019 0947 121019 2234 1n-Butylbenzene ND

305 659 ugSample 121019 0947 121019 2234 1n-Propylbenzene ND

Eurofins TestAmerica Knoxville

12302019Page 16 of 706111

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-2Client Sample ID Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

o-Xylene ND 305 317 ugSample 121019 0947 121019 2234 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

305 598 ugSample 121019 0947 121019 2234 1sec-Butylbenzene ND

305 659 ugSample 121019 0947 121019 2234 1Styrene ND

305 537 ugSample 121019 0947 121019 2234 1tert-Butylbenzene ND

305 402 ugSample 121019 0947 121019 2234 1Tetrachloroethene ND

305 561 ugSample 121019 0947 121019 2234 1Toluene ND

305 317 ugSample 121019 0947 121019 2234 1trans-12-Dichloroethene ND

305 107 ugSample 121019 0947 121019 2234 1trans-13-Dichloropropene ND

305 220 ugSample 121019 0947 121019 2234 1Trichloroethene ND

610 585 ugSample 121019 0947 121019 2234 1Trichlorofluoromethane ND

610 146 ugSample 121019 0947 121019 2234 1Vinyl chloride ND

Unknown 596 T J ugSample 113 121019 0947 121019 2234 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1121019 2234121019 0947T JUnknown 1110 ugSample 118

1121019 2234121019 0947T JUnknown 351 ugSample 122

12-Dichloroethane-d4 (Surr) 121 70 - 160 121019 0947 121019 2234 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 107 121019 0947 121019 2234 157 - 152

Dibromofluoromethane (Surr) 106 121019 0947 121019 2234 162 - 134

Toluene-d8 (Surr) 89 121019 0947 121019 2234 171 - 139

Method 8260B - Volatile Organic Compounds (GCMS) - DLRL MDL

2-MTP as HFPO 2230 533 533 ugSample 121019 0947 121119 1629 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

12-Dichloroethane-d4 (Surr) 112 70 - 160 121019 0947 121119 1629 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 108 121019 0947 121119 1629 157 - 152

Dibromofluoromethane (Surr) 97 121019 0947 121119 1629 162 - 134

Toluene-d8 (Surr) 96 121019 0947 121119 1629 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 32600 6500 3250 ugSample 121019 0947 121919 2322 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2680 1220 ugSample 121019 0947 122419 0140 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 40 HF SU 121719 1337 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Eurofins TestAmerica Knoxville

12302019Page 17 of 706112

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-3Client Sample ID Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 304 401 ugSample 121019 0947 121019 2209 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

608 608 ugSample 121019 0947 121019 2209 111133-Pentafluorobutane ND

304 438 ugSample 121019 0947 121019 2209 1111-Trichloroethane ND

608 120 ugSample 121019 0947 121019 2209 1111-Trifluoro-22-dichloroethane ND

608 608 ugSample 121019 0947 121019 2209 1111-Trifluoroethane ND

304 583 ugSample 121019 0947 121019 2209 11122-Tetrachloroethane ND

608 340 ugSample 121019 0947 121019 2209 1112-Trichloro-122-trifluoroethane ND

608 608 ugSample 121019 0947 121019 2209 1112-trichloro-1-fluoroethane ND

304 316 ugSample 121019 0947 121019 2209 1112-Trichloroethane ND

608 304 ugSample 121019 0947 121019 2209 111-Dichloro-1-fluoroethane ND

608 608 ugSample 121019 0947 121019 2209 111-dichloro-22-difluoroethane ND

608 608 ugSample 121019 0947 121019 2209 111-dichloro-22-difluoroethene ND

304 365 ugSample 121019 0947 121019 2209 111-Dichloroethane ND

304 450 ugSample 121019 0947 121019 2209 111-Dichloroethene ND

304 328 ugSample 121019 0947 121019 2209 111-Dichloropropene ND

608 608 ugSample 121019 0947 121019 2209 111-Difluoroethene ND

608 608 ugSample 121019 0947 121019 2209 1122-trichloro-11-difluoroethane ND

304 972 ugSample 121019 0947 121019 2209 1123-Trichlorobenzene ND

304 753 ugSample 121019 0947 121019 2209 1123-Trichloropropane ND

304 102 ugSample 121019 0947 121019 2209 1124-Trichlorobenzene ND

304 632 ugSample 121019 0947 121019 2209 1124-Trimethylbenzene ND

608 107 ugSample 121019 0947 121019 2209 112-Dibromo-3-Chloropropane ND

304 401 ugSample 121019 0947 121019 2209 112-Dibromoethane (EDB) ND

608 608 ugSample 121019 0947 121019 2209 112-dichloro-11-difluoroethane ND

304 535 ugSample 121019 0947 121019 2209 112-Dichlorobenzene ND

304 510 ugSample 121019 0947 121019 2209 112-Dichloroethane ND

304 304 ugSample 121019 0947 121019 2209 112-Dichloropropane ND

304 632 ugSample 121019 0947 121019 2209 1135-Trimethylbenzene ND

304 523 ugSample 121019 0947 121019 2209 113-Dichlorobenzene ND

304 340 ugSample 121019 0947 121019 2209 113-Dichloropropane ND

304 608 ugSample 121019 0947 121019 2209 114-Dichlorobenzene ND

608 620 ugSample 121019 0947 121019 2209 11-Chloro-11-difluoroethane ND

608 608 ugSample 121019 0947 121019 2209 122-dichloro-11-difluoroethylmethyl

ether

ND

304 887 ugSample 121019 0947 121019 2209 122-Dichloropropane ND

122 194 ugSample 121019 0947 121019 2209 12-Butanone (MEK) ND

608 899 ugSample 121019 0947 121019 2209 12-chloro-111444-hexafluoro-2-but

ene

ND

608 608 ugSample 121019 0947 121019 2209 12-Chloro-111-Trifluoroethane ND

304 571 ugSample 121019 0947 121019 2209 12-Chlorotoluene ND

122 280 ugSample 121019 0947 121019 2209 12-Hexanone ND

266 266 ugSample 121019 0947 121019 2209 12-MTP as HFPO 2130 E

304 632 ugSample 121019 0947 121019 2209 14-Chlorotoluene ND

304 814 ugSample 121019 0947 121019 2209 14-Isopropyltoluene ND

122 194 ugSample 121019 0947 121019 2209 14-Methyl-2-pentanone (MIBK) ND

122 717 ugSample 121019 0947 121019 2209 1Acetone ND

304 583 ugSample 121019 0947 121019 2209 1Benzene ND

304 425 ugSample 121019 0947 121019 2209 1Bromobenzene ND

Eurofins TestAmerica Knoxville

12302019Page 18 of 706113

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-3Client Sample ID Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromochloromethane ND 304 681 ugSample 121019 0947 121019 2209 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

304 523 ugSample 121019 0947 121019 2209 1Bromodichloromethane ND

304 924 ugSample 121019 0947 121019 2209 1Bromoform ND

608 352 ugSample 121019 0947 121019 2209 1Bromomethane ND

304 753 ugSample 121019 0947 121019 2209 1Carbon disulfide ND

304 401 ugSample 121019 0947 121019 2209 1Carbon tetrachloride ND

894 894 ugSample 121019 0947 121019 2209 1Carbonyl Difluoride ND

304 438 ugSample 121019 0947 121019 2209 1Chlorobenzene ND

304 656 ugSample 121019 0947 121019 2209 1Chlorodibromomethane ND

608 134 ugSample 121019 0947 121019 2209 1Chloroethane ND

304 352 ugSample 121019 0947 121019 2209 1Chloroform ND

608 253 ugSample 121019 0947 121019 2209 1Chloromethane ND

304 243 ugSample 121019 0947 121019 2209 1cis-12-Dichloroethene ND

304 523 ugSample 121019 0947 121019 2209 1cis-13-Dichloropropene ND

304 292 ugSample 121019 0947 121019 2209 1Dibromomethane ND

608 107 ugSample 121019 0947 121019 2209 1Dichlorodifluoromethane ND

304 498 ugSample 121019 0947 121019 2209 1Ethylbenzene ND

304 304 ugSample 121019 0947 121019 2209 1Heptafluoropropyl 1222-tetrafluoroethyl ether

334

304 802 ugSample 121019 0947 121019 2209 1Hexachlorobutadiene ND

292 292 ugSample 121019 0947 121019 2209 1HFPO dimer methyl ester as

HFPO-DA

ND

304 425 ugSample 121019 0947 121019 2209 1Isopropylbenzene ND

608 498 ugSample 121019 0947 121019 2209 1mp-Xylene ND

304 194 ugSample 121019 0947 121019 2209 1Methylene Chloride 202 J

304 146 ugSample 121019 0947 121019 2209 1Naphthalene ND

304 778 ugSample 121019 0947 121019 2209 1n-Butylbenzene ND

304 656 ugSample 121019 0947 121019 2209 1n-Propylbenzene ND

304 316 ugSample 121019 0947 121019 2209 1o-Xylene ND

304 595 ugSample 121019 0947 121019 2209 1sec-Butylbenzene ND

304 656 ugSample 121019 0947 121019 2209 1Styrene ND

304 535 ugSample 121019 0947 121019 2209 1tert-Butylbenzene ND

304 401 ugSample 121019 0947 121019 2209 1Tetrachloroethene ND

304 559 ugSample 121019 0947 121019 2209 1Toluene ND

304 316 ugSample 121019 0947 121019 2209 1trans-12-Dichloroethene ND

304 107 ugSample 121019 0947 121019 2209 1trans-13-Dichloropropene ND

304 219 ugSample 121019 0947 121019 2209 1Trichloroethene ND

608 583 ugSample 121019 0947 121019 2209 1Trichlorofluoromethane ND

608 146 ugSample 121019 0947 121019 2209 1Vinyl chloride ND

Unknown 411 T J ugSample 113 121019 0947 121019 2209 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1121019 2209121019 0947T JUnknown 747 ugSample 118

12-Dichloroethane-d4 (Surr) 114 70 - 160 121019 0947 121019 2209 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 107 121019 0947 121019 2209 157 - 152

Dibromofluoromethane (Surr) 103 121019 0947 121019 2209 162 - 134

Eurofins TestAmerica Knoxville

12302019Page 19 of 706114

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-3Client Sample ID Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)

Toluene-d8 (Surr) 92 71 - 139 121019 0947 121019 2209 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Method 8260B - Volatile Organic Compounds (GCMS) - DLRL MDL

2-MTP as HFPO 1970 531 531 ugSample 121019 0947 121119 1653 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

12-Dichloroethane-d4 (Surr) 110 70 - 160 121019 0947 121119 1653 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 108 121019 0947 121119 1653 157 - 152

Dibromofluoromethane (Surr) 98 121019 0947 121119 1653 162 - 134

Toluene-d8 (Surr) 95 121019 0947 121119 1653 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 13600 6480 3240 ugSample 121019 0947 122019 0030 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2670 1220 ugSample 121019 0947 122419 0248 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 50 HF SU 121719 1337 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17557-4Client Sample ID Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 297 393 ugSample 121019 0947 121019 2145 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

595 595 ugSample 121019 0947 121019 2145 111133-Pentafluorobutane ND

297 428 ugSample 121019 0947 121019 2145 1111-Trichloroethane ND

595 118 ugSample 121019 0947 121019 2145 1111-Trifluoro-22-dichloroethane ND

595 595 ugSample 121019 0947 121019 2145 1111-Trifluoroethane ND

297 571 ugSample 121019 0947 121019 2145 11122-Tetrachloroethane ND

595 333 ugSample 121019 0947 121019 2145 1112-Trichloro-122-trifluoroethane ND

595 595 ugSample 121019 0947 121019 2145 1112-trichloro-1-fluoroethane ND

297 309 ugSample 121019 0947 121019 2145 1112-Trichloroethane ND

595 297 ugSample 121019 0947 121019 2145 111-Dichloro-1-fluoroethane ND

595 595 ugSample 121019 0947 121019 2145 111-dichloro-22-difluoroethane ND

595 595 ugSample 121019 0947 121019 2145 111-dichloro-22-difluoroethene ND

297 357 ugSample 121019 0947 121019 2145 111-Dichloroethane ND

297 440 ugSample 121019 0947 121019 2145 111-Dichloroethene ND

297 321 ugSample 121019 0947 121019 2145 111-Dichloropropene ND

595 595 ugSample 121019 0947 121019 2145 111-Difluoroethene ND

595 595 ugSample 121019 0947 121019 2145 1122-trichloro-11-difluoroethane ND

297 952 ugSample 121019 0947 121019 2145 1123-Trichlorobenzene ND

297 738 ugSample 121019 0947 121019 2145 1123-Trichloropropane ND

Eurofins TestAmerica Knoxville

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Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-4Client Sample ID Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

124-Trichlorobenzene ND 297 100 ugSample 121019 0947 121019 2145 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

297 619 ugSample 121019 0947 121019 2145 1124-Trimethylbenzene ND

595 105 ugSample 121019 0947 121019 2145 112-Dibromo-3-Chloropropane ND

297 393 ugSample 121019 0947 121019 2145 112-Dibromoethane (EDB) ND

595 595 ugSample 121019 0947 121019 2145 112-dichloro-11-difluoroethane ND

297 524 ugSample 121019 0947 121019 2145 112-Dichlorobenzene ND

297 500 ugSample 121019 0947 121019 2145 112-Dichloroethane ND

297 297 ugSample 121019 0947 121019 2145 112-Dichloropropane ND

297 619 ugSample 121019 0947 121019 2145 1135-Trimethylbenzene ND

297 512 ugSample 121019 0947 121019 2145 113-Dichlorobenzene ND

297 333 ugSample 121019 0947 121019 2145 113-Dichloropropane ND

297 595 ugSample 121019 0947 121019 2145 114-Dichlorobenzene ND

595 607 ugSample 121019 0947 121019 2145 11-Chloro-11-difluoroethane ND

595 595 ugSample 121019 0947 121019 2145 122-dichloro-11-difluoroethylmethyl

ether

ND

297 869 ugSample 121019 0947 121019 2145 122-Dichloropropane ND

119 190 ugSample 121019 0947 121019 2145 12-Butanone (MEK) ND

595 881 ugSample 121019 0947 121019 2145 12-chloro-111444-hexafluoro-2-but

ene

ND

595 595 ugSample 121019 0947 121019 2145 12-Chloro-111-Trifluoroethane ND

297 559 ugSample 121019 0947 121019 2145 12-Chlorotoluene ND

119 274 ugSample 121019 0947 121019 2145 12-Hexanone ND

259 259 ugSample 121019 0947 121019 2145 12-MTP as HFPO 2560 E

297 619 ugSample 121019 0947 121019 2145 14-Chlorotoluene ND

297 797 ugSample 121019 0947 121019 2145 14-Isopropyltoluene ND

119 190 ugSample 121019 0947 121019 2145 14-Methyl-2-pentanone (MIBK) ND

119 702 ugSample 121019 0947 121019 2145 1Acetone ND

297 571 ugSample 121019 0947 121019 2145 1Benzene ND

297 416 ugSample 121019 0947 121019 2145 1Bromobenzene ND

297 666 ugSample 121019 0947 121019 2145 1Bromochloromethane ND

297 512 ugSample 121019 0947 121019 2145 1Bromodichloromethane ND

297 904 ugSample 121019 0947 121019 2145 1Bromoform ND

595 345 ugSample 121019 0947 121019 2145 1Bromomethane ND

297 738 ugSample 121019 0947 121019 2145 1Carbon disulfide ND

297 393 ugSample 121019 0947 121019 2145 1Carbon tetrachloride ND

872 872 ugSample 121019 0947 121019 2145 1Carbonyl Difluoride ND

297 428 ugSample 121019 0947 121019 2145 1Chlorobenzene ND

297 643 ugSample 121019 0947 121019 2145 1Chlorodibromomethane ND

595 131 ugSample 121019 0947 121019 2145 1Chloroethane ND

297 345 ugSample 121019 0947 121019 2145 1Chloroform ND

595 247 ugSample 121019 0947 121019 2145 1Chloromethane ND

297 238 ugSample 121019 0947 121019 2145 1cis-12-Dichloroethene ND

297 512 ugSample 121019 0947 121019 2145 1cis-13-Dichloropropene ND

297 286 ugSample 121019 0947 121019 2145 1Dibromomethane ND

595 105 ugSample 121019 0947 121019 2145 1Dichlorodifluoromethane ND

297 488 ugSample 121019 0947 121019 2145 1Ethylbenzene ND

297 297 ugSample 121019 0947 121019 2145 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

Eurofins TestAmerica Knoxville

12302019Page 21 of 706116

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-4Client Sample ID Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Hexachlorobutadiene ND 297 785 ugSample 121019 0947 121019 2145 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

285 285 ugSample 121019 0947 121019 2145 1HFPO dimer methyl ester as

HFPO-DA

ND

297 416 ugSample 121019 0947 121019 2145 1Isopropylbenzene ND

595 488 ugSample 121019 0947 121019 2145 1mp-Xylene ND

297 190 ugSample 121019 0947 121019 2145 1Methylene Chloride 200 J

297 143 ugSample 121019 0947 121019 2145 1Naphthalene ND

297 762 ugSample 121019 0947 121019 2145 1n-Butylbenzene ND

297 643 ugSample 121019 0947 121019 2145 1n-Propylbenzene ND

297 309 ugSample 121019 0947 121019 2145 1o-Xylene ND

297 583 ugSample 121019 0947 121019 2145 1sec-Butylbenzene ND

297 643 ugSample 121019 0947 121019 2145 1Styrene ND

297 524 ugSample 121019 0947 121019 2145 1tert-Butylbenzene ND

297 393 ugSample 121019 0947 121019 2145 1Tetrachloroethene ND

297 547 ugSample 121019 0947 121019 2145 1Toluene ND

297 309 ugSample 121019 0947 121019 2145 1trans-12-Dichloroethene ND

297 105 ugSample 121019 0947 121019 2145 1trans-13-Dichloropropene ND

297 214 ugSample 121019 0947 121019 2145 1Trichloroethene ND

595 571 ugSample 121019 0947 121019 2145 1Trichlorofluoromethane ND

595 143 ugSample 121019 0947 121019 2145 1Vinyl chloride ND

Butanoic acid heptafluoro- sodium

salt

545 T J N ugSample 113 2218-54-4 121019 0947 121019 2145 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1121019 2145121019 0947T J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-8761 ugSample 118

12-Dichloroethane-d4 (Surr) 118 70 - 160 121019 0947 121019 2145 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 110 121019 0947 121019 2145 157 - 152

Dibromofluoromethane (Surr) 107 121019 0947 121019 2145 162 - 134

Toluene-d8 (Surr) 91 121019 0947 121019 2145 171 - 139

Method 8260B - Volatile Organic Compounds (GCMS) - DLRL MDL

2-MTP as HFPO 2330 650 650 ugSample 121019 0947 121119 1718 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

12-Dichloroethane-d4 (Surr) 112 70 - 160 121019 0947 121119 1718 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 107 121019 0947 121119 1718 157 - 152

Dibromofluoromethane (Surr) 98 121019 0947 121119 1718 162 - 134

Toluene-d8 (Surr) 95 121019 0947 121119 1718 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 5730 J 6350 3170 ugSample 121019 0947 122019 0053 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2620 1190 ugSample 121019 0947 122419 0356 20Hydrogen Fluoride ND

Eurofins TestAmerica Knoxville

12302019Page 22 of 706117

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-4Client Sample ID Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

General ChemistryRL MDL

pH 50 HF SU 121719 1337 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17557-5Client Sample ID Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 310 409 ugSample 121019 0947 121019 2120 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

619 619 ugSample 121019 0947 121019 2120 111133-Pentafluorobutane ND

310 446 ugSample 121019 0947 121019 2120 1111-Trichloroethane ND

619 123 ugSample 121019 0947 121019 2120 1111-Trifluoro-22-dichloroethane ND

619 619 ugSample 121019 0947 121019 2120 1111-Trifluoroethane ND

310 595 ugSample 121019 0947 121019 2120 11122-Tetrachloroethane ND

619 347 ugSample 121019 0947 121019 2120 1112-Trichloro-122-trifluoroethane ND

619 619 ugSample 121019 0947 121019 2120 1112-trichloro-1-fluoroethane ND

310 322 ugSample 121019 0947 121019 2120 1112-Trichloroethane ND

619 310 ugSample 121019 0947 121019 2120 111-Dichloro-1-fluoroethane ND

619 619 ugSample 121019 0947 121019 2120 111-dichloro-22-difluoroethane ND

619 619 ugSample 121019 0947 121019 2120 111-dichloro-22-difluoroethene ND

310 372 ugSample 121019 0947 121019 2120 111-Dichloroethane ND

310 458 ugSample 121019 0947 121019 2120 111-Dichloroethene ND

310 334 ugSample 121019 0947 121019 2120 111-Dichloropropene ND

619 619 ugSample 121019 0947 121019 2120 111-Difluoroethene ND

619 619 ugSample 121019 0947 121019 2120 1122-trichloro-11-difluoroethane ND

310 991 ugSample 121019 0947 121019 2120 1123-Trichlorobenzene ND

310 768 ugSample 121019 0947 121019 2120 1123-Trichloropropane ND

310 104 ugSample 121019 0947 121019 2120 1124-Trichlorobenzene ND

310 644 ugSample 121019 0947 121019 2120 1124-Trimethylbenzene ND

619 109 ugSample 121019 0947 121019 2120 112-Dibromo-3-Chloropropane ND

310 409 ugSample 121019 0947 121019 2120 112-Dibromoethane (EDB) ND

619 619 ugSample 121019 0947 121019 2120 112-dichloro-11-difluoroethane ND

310 545 ugSample 121019 0947 121019 2120 112-Dichlorobenzene ND

310 520 ugSample 121019 0947 121019 2120 112-Dichloroethane ND

310 310 ugSample 121019 0947 121019 2120 112-Dichloropropane ND

310 644 ugSample 121019 0947 121019 2120 1135-Trimethylbenzene ND

310 533 ugSample 121019 0947 121019 2120 113-Dichlorobenzene ND

310 347 ugSample 121019 0947 121019 2120 113-Dichloropropane ND

310 619 ugSample 121019 0947 121019 2120 114-Dichlorobenzene ND

619 632 ugSample 121019 0947 121019 2120 11-Chloro-11-difluoroethane ND

619 619 ugSample 121019 0947 121019 2120 122-dichloro-11-difluoroethylmethyl

ether

ND

310 904 ugSample 121019 0947 121019 2120 122-Dichloropropane ND

124 198 ugSample 121019 0947 121019 2120 12-Butanone (MEK) ND

619 917 ugSample 121019 0947 121019 2120 12-chloro-111444-hexafluoro-2-but

ene

ND

Eurofins TestAmerica Knoxville

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Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-5Client Sample ID Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

2-Chloro-111-Trifluoroethane ND 619 619 ugSample 121019 0947 121019 2120 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

310 582 ugSample 121019 0947 121019 2120 12-Chlorotoluene ND

124 285 ugSample 121019 0947 121019 2120 12-Hexanone ND

271 271 ugSample 121019 0947 121019 2120 12-MTP as HFPO 2070

310 644 ugSample 121019 0947 121019 2120 14-Chlorotoluene ND

310 830 ugSample 121019 0947 121019 2120 14-Isopropyltoluene ND

124 198 ugSample 121019 0947 121019 2120 14-Methyl-2-pentanone (MIBK) ND

124 731 ugSample 121019 0947 121019 2120 1Acetone ND

310 595 ugSample 121019 0947 121019 2120 1Benzene ND

310 434 ugSample 121019 0947 121019 2120 1Bromobenzene ND

310 694 ugSample 121019 0947 121019 2120 1Bromochloromethane ND

310 533 ugSample 121019 0947 121019 2120 1Bromodichloromethane ND

310 941 ugSample 121019 0947 121019 2120 1Bromoform ND

619 359 ugSample 121019 0947 121019 2120 1Bromomethane ND

310 768 ugSample 121019 0947 121019 2120 1Carbon disulfide ND

310 409 ugSample 121019 0947 121019 2120 1Carbon tetrachloride ND

909 909 ugSample 121019 0947 121019 2120 1Carbonyl Difluoride ND

310 446 ugSample 121019 0947 121019 2120 1Chlorobenzene ND

310 669 ugSample 121019 0947 121019 2120 1Chlorodibromomethane ND

619 136 ugSample 121019 0947 121019 2120 1Chloroethane ND

310 359 ugSample 121019 0947 121019 2120 1Chloroform ND

619 258 ugSample 121019 0947 121019 2120 1Chloromethane ND

310 248 ugSample 121019 0947 121019 2120 1cis-12-Dichloroethene ND

310 533 ugSample 121019 0947 121019 2120 1cis-13-Dichloropropene ND

310 297 ugSample 121019 0947 121019 2120 1Dibromomethane ND

619 109 ugSample 121019 0947 121019 2120 1Dichlorodifluoromethane ND

310 508 ugSample 121019 0947 121019 2120 1Ethylbenzene ND

310 310 ugSample 121019 0947 121019 2120 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

310 818 ugSample 121019 0947 121019 2120 1Hexachlorobutadiene ND

297 297 ugSample 121019 0947 121019 2120 1HFPO dimer methyl ester as

HFPO-DA

ND

310 434 ugSample 121019 0947 121019 2120 1Isopropylbenzene ND

619 508 ugSample 121019 0947 121019 2120 1mp-Xylene ND

310 198 ugSample 121019 0947 121019 2120 1Methylene Chloride ND

310 149 ugSample 121019 0947 121019 2120 1Naphthalene ND

310 793 ugSample 121019 0947 121019 2120 1n-Butylbenzene ND

310 669 ugSample 121019 0947 121019 2120 1n-Propylbenzene ND

310 322 ugSample 121019 0947 121019 2120 1o-Xylene ND

310 607 ugSample 121019 0947 121019 2120 1sec-Butylbenzene ND

310 669 ugSample 121019 0947 121019 2120 1Styrene ND

310 545 ugSample 121019 0947 121019 2120 1tert-Butylbenzene ND

310 409 ugSample 121019 0947 121019 2120 1Tetrachloroethene ND

310 570 ugSample 121019 0947 121019 2120 1Toluene ND

310 322 ugSample 121019 0947 121019 2120 1trans-12-Dichloroethene ND

310 109 ugSample 121019 0947 121019 2120 1trans-13-Dichloropropene ND

310 223 ugSample 121019 0947 121019 2120 1Trichloroethene ND

619 595 ugSample 121019 0947 121019 2120 1Trichlorofluoromethane ND

Eurofins TestAmerica Knoxville

12302019Page 24 of 706119

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-5Client Sample ID Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Vinyl chloride ND 619 149 ugSample 121019 0947 121019 2120 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Propene hexafluoro- 445 T J N ugSample 113 116-15-4 121019 0947 121019 2120 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1121019 2120121019 0947T JUnknown 454 ugSample 118

12-Dichloroethane-d4 (Surr) 117 70 - 160 121019 0947 121019 2120 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 108 121019 0947 121019 2120 157 - 152

Dibromofluoromethane (Surr) 105 121019 0947 121019 2120 162 - 134

Toluene-d8 (Surr) 91 121019 0947 121019 2120 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 5710 J 6610 3300 ugSample 121019 0947 122019 0116 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2730 1240 ugSample 121019 0947 122419 0419 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 50 HF SU 121719 1337 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17557-6Client Sample ID Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 301 397 ugSample 121019 0947 121019 2056 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

601 601 ugSample 121019 0947 121019 2056 111133-Pentafluorobutane ND

301 433 ugSample 121019 0947 121019 2056 1111-Trichloroethane ND

601 119 ugSample 121019 0947 121019 2056 1111-Trifluoro-22-dichloroethane ND

601 601 ugSample 121019 0947 121019 2056 1111-Trifluoroethane ND

301 577 ugSample 121019 0947 121019 2056 11122-Tetrachloroethane ND

601 337 ugSample 121019 0947 121019 2056 1112-Trichloro-122-trifluoroethane ND

601 601 ugSample 121019 0947 121019 2056 1112-trichloro-1-fluoroethane ND

301 313 ugSample 121019 0947 121019 2056 1112-Trichloroethane ND

601 301 ugSample 121019 0947 121019 2056 111-Dichloro-1-fluoroethane ND

601 601 ugSample 121019 0947 121019 2056 111-dichloro-22-difluoroethane ND

601 601 ugSample 121019 0947 121019 2056 111-dichloro-22-difluoroethene ND

301 361 ugSample 121019 0947 121019 2056 111-Dichloroethane ND

301 445 ugSample 121019 0947 121019 2056 111-Dichloroethene ND

301 325 ugSample 121019 0947 121019 2056 111-Dichloropropene ND

601 601 ugSample 121019 0947 121019 2056 111-Difluoroethene ND

601 601 ugSample 121019 0947 121019 2056 1122-trichloro-11-difluoroethane ND

301 962 ugSample 121019 0947 121019 2056 1123-Trichlorobenzene ND

301 745 ugSample 121019 0947 121019 2056 1123-Trichloropropane ND

Eurofins TestAmerica Knoxville

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Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-6Client Sample ID Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

124-Trichlorobenzene ND 301 101 ugSample 121019 0947 121019 2056 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

301 625 ugSample 121019 0947 121019 2056 1124-Trimethylbenzene ND

601 106 ugSample 121019 0947 121019 2056 112-Dibromo-3-Chloropropane ND

301 397 ugSample 121019 0947 121019 2056 112-Dibromoethane (EDB) ND

601 601 ugSample 121019 0947 121019 2056 112-dichloro-11-difluoroethane ND

301 529 ugSample 121019 0947 121019 2056 112-Dichlorobenzene ND

301 505 ugSample 121019 0947 121019 2056 112-Dichloroethane ND

301 301 ugSample 121019 0947 121019 2056 112-Dichloropropane ND

301 625 ugSample 121019 0947 121019 2056 1135-Trimethylbenzene ND

301 517 ugSample 121019 0947 121019 2056 113-Dichlorobenzene ND

301 337 ugSample 121019 0947 121019 2056 113-Dichloropropane ND

301 601 ugSample 121019 0947 121019 2056 114-Dichlorobenzene ND

601 613 ugSample 121019 0947 121019 2056 11-Chloro-11-difluoroethane ND

601 601 ugSample 121019 0947 121019 2056 122-dichloro-11-difluoroethylmethyl

ether

ND

301 878 ugSample 121019 0947 121019 2056 122-Dichloropropane ND

120 192 ugSample 121019 0947 121019 2056 12-Butanone (MEK) ND

601 890 ugSample 121019 0947 121019 2056 12-chloro-111444-hexafluoro-2-but

ene

ND

601 601 ugSample 121019 0947 121019 2056 12-Chloro-111-Trifluoroethane ND

301 565 ugSample 121019 0947 121019 2056 12-Chlorotoluene ND

120 277 ugSample 121019 0947 121019 2056 12-Hexanone ND

263 263 ugSample 121019 0947 121019 2056 12-MTP as HFPO 2550 E

301 625 ugSample 121019 0947 121019 2056 14-Chlorotoluene ND

301 806 ugSample 121019 0947 121019 2056 14-Isopropyltoluene ND

120 192 ugSample 121019 0947 121019 2056 14-Methyl-2-pentanone (MIBK) ND

120 709 ugSample 121019 0947 121019 2056 1Acetone ND

301 577 ugSample 121019 0947 121019 2056 1Benzene ND

301 421 ugSample 121019 0947 121019 2056 1Bromobenzene ND

301 673 ugSample 121019 0947 121019 2056 1Bromochloromethane ND

301 517 ugSample 121019 0947 121019 2056 1Bromodichloromethane ND

301 914 ugSample 121019 0947 121019 2056 1Bromoform ND

601 349 ugSample 121019 0947 121019 2056 1Bromomethane ND

301 745 ugSample 121019 0947 121019 2056 1Carbon disulfide ND

301 397 ugSample 121019 0947 121019 2056 1Carbon tetrachloride ND

879 879 ugSample 121019 0947 121019 2056 1Carbonyl Difluoride ND

301 433 ugSample 121019 0947 121019 2056 1Chlorobenzene ND

301 649 ugSample 121019 0947 121019 2056 1Chlorodibromomethane ND

601 132 ugSample 121019 0947 121019 2056 1Chloroethane ND

301 349 ugSample 121019 0947 121019 2056 1Chloroform ND

601 250 ugSample 121019 0947 121019 2056 1Chloromethane ND

301 240 ugSample 121019 0947 121019 2056 1cis-12-Dichloroethene ND

301 517 ugSample 121019 0947 121019 2056 1cis-13-Dichloropropene ND

301 289 ugSample 121019 0947 121019 2056 1Dibromomethane ND

601 106 ugSample 121019 0947 121019 2056 1Dichlorodifluoromethane ND

301 493 ugSample 121019 0947 121019 2056 1Ethylbenzene ND

301 301 ugSample 121019 0947 121019 2056 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

Eurofins TestAmerica Knoxville

12302019Page 26 of 706121

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-6Client Sample ID Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Hexachlorobutadiene ND 301 794 ugSample 121019 0947 121019 2056 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

289 289 ugSample 121019 0947 121019 2056 1HFPO dimer methyl ester as

HFPO-DA

ND

301 421 ugSample 121019 0947 121019 2056 1Isopropylbenzene ND

601 493 ugSample 121019 0947 121019 2056 1mp-Xylene ND

301 192 ugSample 121019 0947 121019 2056 1Methylene Chloride ND

301 144 ugSample 121019 0947 121019 2056 1Naphthalene ND

301 770 ugSample 121019 0947 121019 2056 1n-Butylbenzene ND

301 649 ugSample 121019 0947 121019 2056 1n-Propylbenzene ND

301 313 ugSample 121019 0947 121019 2056 1o-Xylene ND

301 589 ugSample 121019 0947 121019 2056 1sec-Butylbenzene ND

301 649 ugSample 121019 0947 121019 2056 1Styrene ND

301 529 ugSample 121019 0947 121019 2056 1tert-Butylbenzene ND

301 397 ugSample 121019 0947 121019 2056 1Tetrachloroethene ND

301 553 ugSample 121019 0947 121019 2056 1Toluene ND

301 313 ugSample 121019 0947 121019 2056 1trans-12-Dichloroethene ND

301 106 ugSample 121019 0947 121019 2056 1trans-13-Dichloropropene ND

301 216 ugSample 121019 0947 121019 2056 1Trichloroethene ND

601 577 ugSample 121019 0947 121019 2056 1Trichlorofluoromethane ND

601 144 ugSample 121019 0947 121019 2056 1Vinyl chloride ND

Propene hexafluoro- 408 T J N ugSample 113 116-15-4 121019 0947 121019 2056 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1121019 2056121019 0947T JUnknown 418 ugSample 118

12-Dichloroethane-d4 (Surr) 116 70 - 160 121019 0947 121019 2056 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 121019 0947 121019 2056 157 - 152

Dibromofluoromethane (Surr) 104 121019 0947 121019 2056 162 - 134

Toluene-d8 (Surr) 92 121019 0947 121019 2056 171 - 139

Method 8260B - Volatile Organic Compounds (GCMS) - DLRL MDL

2-MTP as HFPO 2350 657 657 ugSample 121019 0947 121119 1742 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

12-Dichloroethane-d4 (Surr) 112 70 - 160 121019 0947 121119 1742 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 107 121019 0947 121119 1742 157 - 152

Dibromofluoromethane (Surr) 98 121019 0947 121119 1742 162 - 134

Toluene-d8 (Surr) 96 121019 0947 121119 1742 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 4990 J 6410 3210 ugSample 121019 0947 122019 0138 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2650 1200 ugSample 121019 0947 122419 0442 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 50 HF SU 121719 1339 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Eurofins TestAmerica Knoxville

12302019Page 27 of 706122

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17557-1ProjectSite VEN Stack - MM-18

Method 8260B - Volatile Organic Compounds (GCMS)Prep MeOH Prep

2501112-Tetrachloroethane ugSample

Analyte UnitsMDLRL

0330

50011133-Pentafluorobutane ugSample0500

250111-Trichloroethane ugSample0360

500111-Trifluoro-22-dichloroethane ugSample0990

500111-Trifluoroethane ugSample0500

2501122-Tetrachloroethane ugSample0480

500112-Trichloro-122-trifluoroethane ugSample0280

500112-trichloro-1-fluoroethane ugSample0500

250112-Trichloroethane ugSample0260

50011-Dichloro-1-fluoroethane ugSample250

50011-dichloro-22-difluoroethane ugSample0500

50011-dichloro-22-difluoroethene ugSample0500

25011-Dichloroethane ugSample0300

25011-Dichloroethene ugSample0370

25011-Dichloropropene ugSample0270

50011-Difluoroethene ugSample500

500122-trichloro-11-difluoroethane ugSample0500

250123-Trichlorobenzene ugSample0800

250123-Trichloropropane ugSample0620

250124-Trichlorobenzene ugSample0840

250124-Trimethylbenzene ugSample0520

50012-Dibromo-3-Chloropropane ugSample0880

25012-Dibromoethane (EDB) ugSample0330

50012-dichloro-11-difluoroethane ugSample0500

25012-Dichlorobenzene ugSample0440

25012-Dichloroethane ugSample0420

25012-Dichloropropane ugSample0250

250135-Trimethylbenzene ugSample0520

25013-Dichlorobenzene ugSample0430

25013-Dichloropropane ugSample0280

25014-Dichlorobenzene ugSample0500

5001-Chloro-11-difluoroethane ugSample0510

50022-dichloro-11-difluoroethylmethyl ether ugSample0500

25022-Dichloropropane ugSample0730

1002-Butanone (MEK) ugSample160

5002-chloro-111444-hexafluoro-2-butene ugSample0740

5002-Chloro-111-Trifluoroethane ugSample0500

2502-Chlorotoluene ugSample0470

1002-Hexanone ugSample230

2502-MTP as HFPO ugSample250

2504-Chlorotoluene ugSample0520

2504-Isopropyltoluene ugSample0670

1004-Methyl-2-pentanone (MIBK) ugSample160

100Acetone ugSample590

250Benzene ugSample0480

250Bromobenzene ugSample0350

250Bromochloromethane ugSample0560

250Bromodichloromethane ugSample0430

250Bromoform ugSample0760

500Bromomethane ugSample290

250Carbon disulfide ugSample0620

250Carbon tetrachloride ugSample0330

Eurofins TestAmerica Knoxville

12302019Page 28 of 706123

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17557-1ProjectSite VEN Stack - MM-18

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)Prep MeOH Prep

100Carbonyl Difluoride ugSample

Analyte UnitsMDLRL

100

250Chlorobenzene ugSample0360

250Chlorodibromomethane ugSample0540

500Chloroethane ugSample110

250Chloroform ugSample0290

500Chloromethane ugSample208

250cis-12-Dichloroethene ugSample0200

250cis-13-Dichloropropene ugSample0430

250Dibromomethane ugSample0240

500Dichlorodifluoromethane ugSample0880

250Ethylbenzene ugSample0410

250Heptafluoropropyl 1222-tetrafluoroethyl ether ugSample250

250Hexachlorobutadiene ugSample0660

250HFPO dimer methyl ester as HFPO-DA ugSample250

250Isopropylbenzene ugSample0350

500mp-Xylene ugSample0410

250Methylene Chloride ugSample160

250Naphthalene ugSample120

250n-Butylbenzene ugSample0640

250n-Propylbenzene ugSample0540

250o-Xylene ugSample0260

250sec-Butylbenzene ugSample0490

250Styrene ugSample0540

250tert-Butylbenzene ugSample0440

250Tetrachloroethene ugSample0330

250Toluene ugSample0460

250trans-12-Dichloroethene ugSample0260

250trans-13-Dichloropropene ugSample0880

250Trichloroethene ugSample0180

500Trichlorofluoromethane ugSample0480

500Vinyl chloride ugSample120

Method 9056 - Anions Ion ChromatographyPrep MeOH Prep

110Hydrogen Fluoride ugSample

Analyte UnitsMDLRL

500

1000Total Fluorine ugSample500

Eurofins TestAmerica Knoxville

12302019Page 29 of 706124

ANALYTICAL REPORTJob Number 140-17462-1

Job Description VEN MM-18 Field QC

Contract Number LBIO-67048

ForChemours Company FC LLC The

co AECOMSabre Building Suite 300

4051 Ogletown RoadNewark DE 19713

Attention Michael Aucoin

_____________________________________________

Approved for releaseCourtney M AdkinsProject Manager II12232019 302 PM

Courtney M Adkins Project Manager II5815 Middlebrook Pike Knoxville TN 37921

(865)291-3000 courtneyadkinstestamericainccom

12232019

This report may not be reproduced except in full and with written approval from the laboratory For questions please contact the Project Manager atthe e-mail address or telephone number listed on this page

The test results in this report relate only to the samples as received by the laboratory and will meet all requirements of the methodology with anyexceptions noted This report shall not be reproduced except in full without the express written approval of the laboratory All questions should bedirected to the Eurofins TestAmerica Project Manager

This report has been electronically signed and authorized by the signatory Electronic signature is intended to be the legally binding equivalent of atraditionally handwritten signature

Eurofins TestAmerica Knoxville

5815 Middlebrook Pike Knoxville TN 37921

Tel (865) 291-3000 Fax (865) 584-4315 wwwtestamericainccom

12232019Page 1 of 820125

Table of ContentsCover Title Page 1

Data Summaries 5

Definitions 5

Method Summary 6

Sample Summary 7

Case Narrative 8

QC Association 10

Client Sample Results 13

Default Detection Limits 35

Surrogate Summary 37

QC Sample Results 39

Chronicle 46

Certification Summary 54

Manual Integration Summary 56

Organic Sample Data 69

GCMS VOA 69

Method 8260B 69Method 8260B QC Summary 70Method 8260B Sample Data 83Standards Data 179

Method 8260B ICAL Data 179Method 8260B CCAL Data 281

Raw QC Data 329Method 8260B Tune Data 329Method 8260B Blank Data 345Method 8260B LCSLCSD Data 355

12232019Page 2 of 820126

Table of ContentsMethod 8260B MSMSD Data 368

Method 8260B Run Logs 376Method 8260B Prep Data 389

HPLCIC 392

Method 9056 392Method 9056 QC Summary 393Method 9056 Sample Data 396Standards Data 423

Method 9056 ICAL Data 423Method 9056 CCAL Data 450

Raw QC Data 493Method 9056 Blank Data 493Method 9056 LCSLCSD Data 519

Method 9056 Run Logs 525Method 9056 Prep Data 539

Method 9056A Total Halogens 541Method 9056A Total Halogens QC Summary 542Method 9056A Total Halogens Sample Data 545Standards Data 580

Method 9056A Total Halogens ICAL Data 580Method 9056A Total Halogens CCAL Data 605

Raw QC Data 624Method 9056A Total Halogens Blank Data 624Method 9056A Total Halogens LCSLCSD Data 641

Method 9056A Total Halogens Run Logs 649Method 9056A Total Halogens Prep Data 658

12232019Page 3 of 820127

Table of ContentsLCMS 662

Method DV-LC-0012 662Method DV-LC-0012 QC Summary 663Method DV-LC-0012 Sample Data 668Standards Data 704

Method DV-LC-0012 ICAL Data 704Method DV-LC-0012 CCAL Data 751

Raw QC Data 763Method DV-LC-0012 Tune Data 763Method DV-LC-0012 Blank Data 768Method DV-LC-0012 LCSLCSD Data 772

Method DV-LC-0012 Run Logs 785Method DV-LC-0012 Prep Data 788

Inorganic Sample Data 796

General Chemistry Data 796

Gen Chem Cover Page 797

Gen Chem Sample Data 798

Gen Chem QC Data 807Gen Chem ICVCCV 807

Gen Chem MDL 808

Gen Chem Analysis Run Log 809

Gen Chem Prep Data 810

Gen Chem Raw Data 811

Shipping and Receiving Documents 813

Client Chain of Custody 814

12232019Page 4 of 820128

DefinitionsGlossaryJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Qualifiers

GCMS VOAQualifier Description

LCS or LCSD is outside acceptance limits

Qualifier

B Compound was found in the blank and sample

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

GCMS VOA TICsQualifier Description

J Indicates an Estimated Value for TICs

Qualifier

N Presumptive evidence of material

T Result is a tentatively identified compound (TIC) and an estimated value

HPLCICQualifier Description

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

Qualifier

LCMSQualifier Description

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

Qualifier

General ChemistryQualifier Description

HF Field parameter with a holding time of 15 minutes Test performed by laboratory at clients request

Qualifier

GlossaryThese commonly used abbreviations may or may not be present in this report

curren Listed under the D column to designate that the result is reported on a dry weight basis

Abbreviation

R Percent Recovery

CFL Contains Free Liquid

CNF Contains No Free Liquid

DER Duplicate Error Ratio (normalized absolute difference)

Dil Fac Dilution Factor

DL Detection Limit (DoDDOE)

DL RA RE IN Indicates a Dilution Re-analysis Re-extraction or additional Initial metalsanion analysis of the sample

DLC Decision Level Concentration (Radiochemistry)

EDL Estimated Detection Limit (Dioxin)

LOD Limit of Detection (DoDDOE)

LOQ Limit of Quantitation (DoDDOE)

MDA Minimum Detectable Activity (Radiochemistry)

MDC Minimum Detectable Concentration (Radiochemistry)

MDL Method Detection Limit

ML Minimum Level (Dioxin)

NC Not Calculated

ND Not Detected at the reporting limit (or MDL or EDL if shown)

PQL Practical Quantitation Limit

QC Quality Control

RER Relative Error Ratio (Radiochemistry)

RL Reporting Limit or Requested Limit (Radiochemistry)

RPD Relative Percent Difference a measure of the relative difference between two points

TEF Toxicity Equivalent Factor (Dioxin)

TEQ Toxicity Equivalent Quotient (Dioxin)

Eurofins TestAmerica Knoxville

12232019Page 5 of 820129

Method SummaryJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Method Method Description LaboratoryProtocol

SW8468260B Volatile Organic Compounds (GCMS) TAL KNX

SW8469056 Anions Ion Chromatography TAL KNX

SW8468321A PFOA and PFOS TAL DEN

SW8469041A pH TAL KNX

SW8465050 Bomb Preparation Method for Solid Waste TAL KNX

NoneMeOH Prep Methanol Impinger Preparation TAL KNX

TAL SOPNone Leaching Procedure TAL DEN

Protocol References

None = None

SW846 = Test Methods For Evaluating Solid Waste PhysicalChemical Methods Third Edition November 1986 And Its Updates

TAL SOP = TestAmerica Laboratories Standard Operating Procedure

Laboratory References

TAL DEN = Eurofins TestAmerica Denver 4955 Yarrow Street Arvada CO 80002 TEL (303)736-0100

TAL KNX = Eurofins TestAmerica Knoxville 5815 Middlebrook Pike Knoxville TN 37921 TEL (865)291-3000

Eurofins TestAmerica Knoxville

12232019Page 6 of 820130

Sample SummaryJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID Client Sample ID ReceivedCollectedMatrix Asset ID

140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1

BT

Air 112219 0000 112519 0800

140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2

BT

Air 112219 0000 112519 0800

140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3

BT

Air 112219 0000 112519 0800

140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4

BT

Air 112219 0000 112519 0800

140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5

BT

Air 112219 0000 112519 0800

140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6

BT

Air 112219 0000 112519 0800

140-17462-7 A-5786 QC MEOH RB Air 112219 0000 112519 0800

140-17462-8 A-5787 QC MEOH TB Air 112219 0000 112519 0800

140-17462-9 A-5788 QC MEOH PB Air 112219 0000 112519 0800

Eurofins TestAmerica Knoxville

12232019Page 7 of 820131

Job Narrative140-17462-1

Sample Receipt

The samples were received on November 25 2019 at 800 AM in good condition and properly preserved The temperature of the cooler at receipt was 33ordm C

GCMS VOA

Impinger Sample Preparation and Analysis Impinger samples were analyzed for the volatile organic target analytes by purge and trap GCMS using Eurofins TestAmerica Knoxville standard operating procedure KNOX-MS-0015 based on the following method

middot SW-846 8260B ldquoVolatile Organic Compounds by Gas Chromatography Mass Spectrometry (GCMS)rdquo

Each sample is prepared by adding a known amount of sample to the purge water in a purge and trap vessel and spiking with internal standards surrogates and matrix spike analytes (as needed) Volatile compounds are introduced into the gas chromatograph by the purge and trap method The components are separated using the chromatograph and detected using a mass spectrometer which provides both qualitative and quantitative information

Impinger sample results were calculated using the following equation

Concentration μgsample = (C times DF times W times Vt) (Va)WhereC = On-column concentration μgLDF = Dilution factorW = Volume of water purged LVt = Methanol extract final volume μL Va = Volume of extract analyzed microL

Method 8260B The following analyte(s) recovered outside control limits but within marginal exceedance limits for the LCS associated with batch 140-35880 Trichlorofluoromethane This is not indicative of a systematic control problem because these were random marginal exceedances Qualified results have been reported

No additional analytical or quality issues were noted other than those described above or in the DefinitionsGlossary page

LCMS No analytical or quality issues were noted other than those described in the DefinitionsGlossary page

General Chemistry Total Chlorine The samples were prepared for total chlorine using SOP number KNOX-WC-0016 (based on ASTM Method E442 and SW-846 Method 5050) The sample is oxidized by combustion in an oxygen flask at atmospheric pressure or a bomb containing oxygen under pressure The liberated halogen compounds are absorbed primarily as halides in a sodium carbonatesodium bicarbonate buffer solution The combustion products are collected by repeated rinsing of the combustion apparatus and analyzed by ion chromatography in accordance with SOP KNOX- WC-0005 (based on SW-846 Method 9056) The results are calculated using the following equation

C = [(Ccom times Vcom) W] times 1000 gKg

WhereC = Concentration of analyte in the sample mgKgCcom = Concentration of analyte in the combustate mgLVcom = Total volume of combustate LW = Weight of sample combusted g

Anions in Impinger Solutions Anions are is determined in accordance to SOP KNOX-WC-0005 (based on methods 3000A and 9056) The samples were diluted a minimum of 120 in ion chromatography solvent buffer solution to reduce the methanol concentration before injection Buffer concentrate was added until the pH was 10 Samples are diluted with ion chromatography eluate solution to bring the concentrations within the calibration range when necessary Higher dilutions are applied as necessary

An aliquot of prepared sample is introduced into the ion chromatograph Anions are identified based on their retention times as compared to those of known standards Quantification is accomplished by measuring the peak response and comparing it to a calibration curve generated from known standards

12232019Page 8 of 820132

The pH of all samples were tested with pH paper QC consisted of initial CCV and LCS which also serve as initial calibration duplicate analysis for every 10 samples and closing CCV A certified thermometer was used to check the ambient temperature

No additional analytical or quality issues were noted other than those described above or in the DefinitionsGlossary page

Organic Prep No analytical or quality issues were noted other than those described in the DefinitionsGlossary page

No analytical or quality issues were noted other than those described in the DefinitionsGlossary page

12232019Page 9 of 820133

QC Association SummaryJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

GCMS VOA

Prep Batch 35705

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air MeOH Prep140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air MeOH Prep140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air MeOH Prep140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air MeOH Prep140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air MeOH Prep140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air MeOH Prep140-17462-7 A-5786 QC MEOH RB TotalNA

Air MeOH Prep140-17462-8 A-5787 QC MEOH TB TotalNA

Air MeOH Prep140-17462-9 A-5788 QC MEOH PB TotalNA

Air MeOH PrepMB 140-357052-A Method Blank TotalNA

Air MeOH PrepLCS 140-357051-A Lab Control Sample TotalNA

Air MeOH Prep140-17462-2 MS A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air MeOH Prep140-17462-2 MSD A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Analysis Batch 35880

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8260B 35705140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air 8260B 35705140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 8260B 35705140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air 8260B 35705140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air 8260B 35705140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air 8260B 35705140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air 8260B 35705140-17462-7 A-5786 QC MEOH RB TotalNA

Air 8260B 35705140-17462-8 A-5787 QC MEOH TB TotalNA

Air 8260B 35705140-17462-9 A-5788 QC MEOH PB TotalNA

Air 8260B 35705MB 140-357052-A Method Blank TotalNA

Air 8260B 35705LCS 140-357051-A Lab Control Sample TotalNA

Air 8260B 35705LCS 140-357051-A Lab Control Sample TotalNA

Air 8260B 35705140-17462-2 MS A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 8260B 35705140-17462-2 MSD A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

HPLCIC

Prep Batch 35705

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air MeOH Prep140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air MeOH Prep140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air MeOH Prep140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air MeOH Prep140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air MeOH Prep140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air MeOH Prep140-17462-7 A-5786 QC MEOH RB TotalNA

Air MeOH Prep140-17462-8 A-5787 QC MEOH TB TotalNA

Air MeOH Prep140-17462-9 A-5788 QC MEOH PB TotalNA

Air MeOH PrepMB 140-3570514-A Method Blank TotalNA

Air MeOH PrepMB 140-3570514-B Method Blank TotalNA

Air MeOH PrepLCS 140-3570515-A Lab Control Sample TotalNA

Air MeOH PrepLCS 140-3570515-B Lab Control Sample TotalNA

Air MeOH PrepLCSD 140-3570516-A Lab Control Sample Dup TotalNA

Air MeOH PrepLCSD 140-3570516-B Lab Control Sample Dup TotalNA

Eurofins TestAmerica Knoxville

12232019Page 10 of 820134

QC Association SummaryJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

HPLCIC

Prep Batch 35762

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 5050 35705140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air 5050 35705140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 5050 35705140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air 5050 35705140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air 5050 35705140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air 5050 35705140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air 5050 35705140-17462-7 A-5786 QC MEOH RB TotalNA

Air 5050 35705140-17462-8 A-5787 QC MEOH TB TotalNA

Air 5050 35705140-17462-9 A-5788 QC MEOH PB TotalNA

Air 5050 35705MB 140-3570514-B Method Blank TotalNA

Air 5050 35705LCS 140-3570515-B Lab Control Sample TotalNA

Air 5050 35705LCSD 140-3570516-B Lab Control Sample Dup TotalNA

Analysis Batch 36121

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35762140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air 9056 35762140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 9056 35762140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air 9056 35762140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air 9056 35762140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air 9056 35762140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air 9056 35762140-17462-7 A-5786 QC MEOH RB TotalNA

Air 9056 35762140-17462-8 A-5787 QC MEOH TB TotalNA

Air 9056 35762140-17462-9 A-5788 QC MEOH PB TotalNA

Air 9056 35762MB 140-3570514-B Method Blank TotalNA

Air 9056 35762LCS 140-3570515-B Lab Control Sample TotalNA

Air 9056 35762LCSD 140-3570516-B Lab Control Sample Dup TotalNA

Analysis Batch 36210

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35705140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air 9056 35705140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 9056 35705140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air 9056 35705140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air 9056 35705140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air 9056 35705140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air 9056 35705140-17462-7 A-5786 QC MEOH RB TotalNA

Air 9056 35705140-17462-8 A-5787 QC MEOH TB TotalNA

Air 9056 35705140-17462-9 A-5788 QC MEOH PB TotalNA

Air 9056 35705MB 140-3570514-A Method Blank TotalNA

Air 9056 35705LCS 140-3570515-A Lab Control Sample TotalNA

Air 9056 35705LCSD 140-3570516-A Lab Control Sample Dup TotalNA

LCMS

Analysis Batch 464589

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321ADLCK 280-46458913 Lab Control Sample TotalNA

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12232019Page 11 of 820135

QC Association SummaryJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

LCMS

Prep Batch 479505

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air None140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air None140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air None140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air None140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air None140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air None140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air None140-17462-7 A-5786 QC MEOH RB TotalNA

Air None140-17462-8 A-5787 QC MEOH TB TotalNA

Air None140-17462-9 A-5788 QC MEOH PB TotalNA

Air NoneMB 280-4795051-A Method Blank TotalNA

Air NoneLCS 280-4795052-A Lab Control Sample TotalNA

Air NoneLCSD 280-4795053-A Lab Control Sample Dup TotalNA

Analysis Batch 479931

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321A 479505140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air 8321A 479505140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 8321A 479505140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air 8321A 479505140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air 8321A 479505140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air 8321A 479505140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air 8321A 479505140-17462-7 A-5786 QC MEOH RB TotalNA

Air 8321A 479505140-17462-8 A-5787 QC MEOH TB TotalNA

Air 8321A 479505140-17462-9 A-5788 QC MEOH PB TotalNA

Air 8321A 479505MB 280-4795051-A Method Blank TotalNA

Air 8321A 479505LCS 280-4795052-A Lab Control Sample TotalNA

Air 8321A 479505LCSD 280-4795053-A Lab Control Sample Dup TotalNA

General Chemistry

Analysis Batch 36086

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9041A140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air 9041A140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 9041A140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air 9041A140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air 9041A140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air 9041A140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air 9041A140-17462-7 A-5786 QC MEOH RB TotalNA

Air 9041A140-17462-8 A-5787 QC MEOH TB TotalNA

Air 9041A140-17462-9 A-5788 QC MEOH PB TotalNA

Air 9041ALCS 140-360862 Lab Control Sample TotalNA

Eurofins TestAmerica Knoxville

12232019Page 12 of 820136

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-1Client Sample ID A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 287 379 ugSample 112919 1045 120619 1517 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

574 574 ugSample 112919 1045 120619 1517 111133-Pentafluorobutane ND

287 413 ugSample 112919 1045 120619 1517 1111-Trichloroethane ND

574 114 ugSample 112919 1045 120619 1517 1111-Trifluoro-22-dichloroethane ND

574 574 ugSample 112919 1045 120619 1517 1111-Trifluoroethane ND

287 551 ugSample 112919 1045 120619 1517 11122-Tetrachloroethane ND

574 321 ugSample 112919 1045 120619 1517 1112-Trichloro-122-trifluoroethane ND

574 574 ugSample 112919 1045 120619 1517 1112-trichloro-1-fluoroethane ND

287 298 ugSample 112919 1045 120619 1517 1112-Trichloroethane ND

574 287 ugSample 112919 1045 120619 1517 111-Dichloro-1-fluoroethane ND

574 574 ugSample 112919 1045 120619 1517 111-dichloro-22-difluoroethane ND

574 574 ugSample 112919 1045 120619 1517 111-dichloro-22-difluoroethene ND

287 344 ugSample 112919 1045 120619 1517 111-Dichloroethane ND

287 425 ugSample 112919 1045 120619 1517 111-Dichloroethene ND

287 310 ugSample 112919 1045 120619 1517 111-Dichloropropene ND

574 574 ugSample 112919 1045 120619 1517 111-Difluoroethene ND

574 574 ugSample 112919 1045 120619 1517 1122-trichloro-11-difluoroethane ND

287 918 ugSample 112919 1045 120619 1517 1123-Trichlorobenzene ND

287 712 ugSample 112919 1045 120619 1517 1123-Trichloropropane ND

287 964 ugSample 112919 1045 120619 1517 1124-Trichlorobenzene ND

287 597 ugSample 112919 1045 120619 1517 1124-Trimethylbenzene ND

574 101 ugSample 112919 1045 120619 1517 112-Dibromo-3-Chloropropane ND

287 379 ugSample 112919 1045 120619 1517 112-Dibromoethane (EDB) ND

574 574 ugSample 112919 1045 120619 1517 112-dichloro-11-difluoroethane ND

287 505 ugSample 112919 1045 120619 1517 112-Dichlorobenzene ND

287 482 ugSample 112919 1045 120619 1517 112-Dichloroethane ND

287 287 ugSample 112919 1045 120619 1517 112-Dichloropropane ND

287 597 ugSample 112919 1045 120619 1517 1135-Trimethylbenzene ND

287 494 ugSample 112919 1045 120619 1517 113-Dichlorobenzene ND

287 321 ugSample 112919 1045 120619 1517 113-Dichloropropane ND

287 574 ugSample 112919 1045 120619 1517 114-Dichlorobenzene ND

574 585 ugSample 112919 1045 120619 1517 11-Chloro-11-difluoroethane ND

574 574 ugSample 112919 1045 120619 1517 122-dichloro-11-difluoroethylmethyl

ether

ND

287 838 ugSample 112919 1045 120619 1517 122-Dichloropropane ND

115 184 ugSample 112919 1045 120619 1517 12-Butanone (MEK) ND

574 849 ugSample 112919 1045 120619 1517 12-chloro-111444-hexafluoro-2-but

ene

ND

574 574 ugSample 112919 1045 120619 1517 12-Chloro-111-Trifluoroethane ND

287 540 ugSample 112919 1045 120619 1517 12-Chlorotoluene ND

115 264 ugSample 112919 1045 120619 1517 12-Hexanone ND

251 251 ugSample 112919 1045 120619 1517 12-MTP as HFPO ND

287 597 ugSample 112919 1045 120619 1517 14-Chlorotoluene ND

287 769 ugSample 112919 1045 120619 1517 14-Isopropyltoluene ND

115 184 ugSample 112919 1045 120619 1517 14-Methyl-2-pentanone (MIBK) ND

115 677 ugSample 112919 1045 120619 1517 1Acetone ND

287 551 ugSample 112919 1045 120619 1517 1Benzene ND

287 402 ugSample 112919 1045 120619 1517 1Bromobenzene ND

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12232019Page 13 of 820137

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-1Client Sample ID A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromochloromethane ND 287 643 ugSample 112919 1045 120619 1517 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

287 494 ugSample 112919 1045 120619 1517 1Bromodichloromethane ND

287 872 ugSample 112919 1045 120619 1517 1Bromoform ND

574 333 ugSample 112919 1045 120619 1517 1Bromomethane ND

287 712 ugSample 112919 1045 120619 1517 1Carbon disulfide ND

287 379 ugSample 112919 1045 120619 1517 1Carbon tetrachloride ND

843 843 ugSample 112919 1045 120619 1517 1Carbonyl Difluoride ND

287 413 ugSample 112919 1045 120619 1517 1Chlorobenzene ND

287 620 ugSample 112919 1045 120619 1517 1Chlorodibromomethane ND

574 126 ugSample 112919 1045 120619 1517 1Chloroethane ND

287 333 ugSample 112919 1045 120619 1517 1Chloroform ND

574 239 ugSample 112919 1045 120619 1517 1Chloromethane ND

287 230 ugSample 112919 1045 120619 1517 1cis-12-Dichloroethene ND

287 494 ugSample 112919 1045 120619 1517 1cis-13-Dichloropropene ND

287 275 ugSample 112919 1045 120619 1517 1Dibromomethane ND

574 101 ugSample 112919 1045 120619 1517 1Dichlorodifluoromethane ND

287 471 ugSample 112919 1045 120619 1517 1Ethylbenzene ND

287 287 ugSample 112919 1045 120619 1517 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

287 758 ugSample 112919 1045 120619 1517 1Hexachlorobutadiene ND

275 275 ugSample 112919 1045 120619 1517 1HFPO dimer methyl ester as

HFPO-DA

ND

287 402 ugSample 112919 1045 120619 1517 1Isopropylbenzene ND

574 471 ugSample 112919 1045 120619 1517 1mp-Xylene ND

287 184 ugSample 112919 1045 120619 1517 1Methylene Chloride ND

287 138 ugSample 112919 1045 120619 1517 1Naphthalene ND

287 735 ugSample 112919 1045 120619 1517 1n-Butylbenzene ND

287 620 ugSample 112919 1045 120619 1517 1n-Propylbenzene ND

287 298 ugSample 112919 1045 120619 1517 1o-Xylene ND

287 562 ugSample 112919 1045 120619 1517 1sec-Butylbenzene ND

287 620 ugSample 112919 1045 120619 1517 1Styrene ND

287 505 ugSample 112919 1045 120619 1517 1tert-Butylbenzene ND

287 379 ugSample 112919 1045 120619 1517 1Tetrachloroethene ND

287 528 ugSample 112919 1045 120619 1517 1Toluene ND

287 298 ugSample 112919 1045 120619 1517 1trans-12-Dichloroethene ND

287 101 ugSample 112919 1045 120619 1517 1trans-13-Dichloropropene ND

287 207 ugSample 112919 1045 120619 1517 1Trichloroethene ND

574 551 ugSample 112919 1045 120619 1517 1Trichlorofluoromethane ND

574 138 ugSample 112919 1045 120619 1517 1Vinyl chloride ND

Tentatively Identified Compound None ugSample 112919 1045 120619 1517 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1045 120619 1517 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 112919 1045 120619 1517 157 - 152

Dibromofluoromethane (Surr) 104 112919 1045 120619 1517 162 - 134

Toluene-d8 (Surr) 97 112919 1045 120619 1517 171 - 139

Eurofins TestAmerica Knoxville

12232019Page 14 of 820138

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-1Client Sample ID A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 11800 6120 3060 ugSample 112919 1045 121319 2153 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2530 1150 ugSample 112919 1045 121819 1319 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1037 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 130 50 - 200 120419 1005 120819 1037 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-2Client Sample ID A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 299 394 ugSample 112919 1045 120619 1542 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

598 598 ugSample 112919 1045 120619 1542 111133-Pentafluorobutane ND

299 430 ugSample 112919 1045 120619 1542 1111-Trichloroethane ND

598 118 ugSample 112919 1045 120619 1542 1111-Trifluoro-22-dichloroethane ND

598 598 ugSample 112919 1045 120619 1542 1111-Trifluoroethane ND

299 574 ugSample 112919 1045 120619 1542 11122-Tetrachloroethane ND

598 335 ugSample 112919 1045 120619 1542 1112-Trichloro-122-trifluoroethane ND

598 598 ugSample 112919 1045 120619 1542 1112-trichloro-1-fluoroethane ND

299 311 ugSample 112919 1045 120619 1542 1112-Trichloroethane ND

598 299 ugSample 112919 1045 120619 1542 111-Dichloro-1-fluoroethane ND

598 598 ugSample 112919 1045 120619 1542 111-dichloro-22-difluoroethane ND

598 598 ugSample 112919 1045 120619 1542 111-dichloro-22-difluoroethene ND

299 359 ugSample 112919 1045 120619 1542 111-Dichloroethane ND

299 442 ugSample 112919 1045 120619 1542 111-Dichloroethene ND

299 323 ugSample 112919 1045 120619 1542 111-Dichloropropene ND

598 598 ugSample 112919 1045 120619 1542 111-Difluoroethene ND

598 598 ugSample 112919 1045 120619 1542 1122-trichloro-11-difluoroethane ND

299 956 ugSample 112919 1045 120619 1542 1123-Trichlorobenzene ND

299 741 ugSample 112919 1045 120619 1542 1123-Trichloropropane ND

299 100 ugSample 112919 1045 120619 1542 1124-Trichlorobenzene ND

299 621 ugSample 112919 1045 120619 1542 1124-Trimethylbenzene ND

598 105 ugSample 112919 1045 120619 1542 112-Dibromo-3-Chloropropane ND

299 394 ugSample 112919 1045 120619 1542 112-Dibromoethane (EDB) ND

598 598 ugSample 112919 1045 120619 1542 112-dichloro-11-difluoroethane ND

299 526 ugSample 112919 1045 120619 1542 112-Dichlorobenzene ND

299 502 ugSample 112919 1045 120619 1542 112-Dichloroethane ND

Eurofins TestAmerica Knoxville

12232019Page 15 of 820139

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-2Client Sample ID A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

12-Dichloropropane ND 299 299 ugSample 112919 1045 120619 1542 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

299 621 ugSample 112919 1045 120619 1542 1135-Trimethylbenzene ND

299 514 ugSample 112919 1045 120619 1542 113-Dichlorobenzene ND

299 335 ugSample 112919 1045 120619 1542 113-Dichloropropane ND

299 598 ugSample 112919 1045 120619 1542 114-Dichlorobenzene ND

598 610 ugSample 112919 1045 120619 1542 11-Chloro-11-difluoroethane ND

598 598 ugSample 112919 1045 120619 1542 122-dichloro-11-difluoroethylmethyl

ether

ND

299 872 ugSample 112919 1045 120619 1542 122-Dichloropropane ND

120 191 ugSample 112919 1045 120619 1542 12-Butanone (MEK) ND

598 884 ugSample 112919 1045 120619 1542 12-chloro-111444-hexafluoro-2-but

ene

ND

598 598 ugSample 112919 1045 120619 1542 12-Chloro-111-Trifluoroethane ND

299 562 ugSample 112919 1045 120619 1542 12-Chlorotoluene ND

120 275 ugSample 112919 1045 120619 1542 12-Hexanone ND

261 261 ugSample 112919 1045 120619 1542 12-MTP as HFPO ND

299 621 ugSample 112919 1045 120619 1542 14-Chlorotoluene ND

299 801 ugSample 112919 1045 120619 1542 14-Isopropyltoluene ND

120 191 ugSample 112919 1045 120619 1542 14-Methyl-2-pentanone (MIBK) ND

120 705 ugSample 112919 1045 120619 1542 1Acetone ND

299 574 ugSample 112919 1045 120619 1542 1Benzene ND

299 418 ugSample 112919 1045 120619 1542 1Bromobenzene ND

299 669 ugSample 112919 1045 120619 1542 1Bromochloromethane ND

299 514 ugSample 112919 1045 120619 1542 1Bromodichloromethane ND

299 908 ugSample 112919 1045 120619 1542 1Bromoform ND

598 347 ugSample 112919 1045 120619 1542 1Bromomethane ND

299 741 ugSample 112919 1045 120619 1542 1Carbon disulfide ND

299 394 ugSample 112919 1045 120619 1542 1Carbon tetrachloride ND

879 879 ugSample 112919 1045 120619 1542 1Carbonyl Difluoride ND

299 430 ugSample 112919 1045 120619 1542 1Chlorobenzene ND

299 645 ugSample 112919 1045 120619 1542 1Chlorodibromomethane ND

598 131 ugSample 112919 1045 120619 1542 1Chloroethane ND

299 347 ugSample 112919 1045 120619 1542 1Chloroform ND

598 249 ugSample 112919 1045 120619 1542 1Chloromethane ND

299 239 ugSample 112919 1045 120619 1542 1cis-12-Dichloroethene ND

299 514 ugSample 112919 1045 120619 1542 1cis-13-Dichloropropene ND

299 287 ugSample 112919 1045 120619 1542 1Dibromomethane ND

598 105 ugSample 112919 1045 120619 1542 1Dichlorodifluoromethane ND

299 490 ugSample 112919 1045 120619 1542 1Ethylbenzene ND

299 299 ugSample 112919 1045 120619 1542 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

299 789 ugSample 112919 1045 120619 1542 1Hexachlorobutadiene ND

287 287 ugSample 112919 1045 120619 1542 1HFPO dimer methyl ester as

HFPO-DA

ND

299 418 ugSample 112919 1045 120619 1542 1Isopropylbenzene ND

598 490 ugSample 112919 1045 120619 1542 1mp-Xylene ND

299 191 ugSample 112919 1045 120619 1542 1Methylene Chloride ND

299 143 ugSample 112919 1045 120619 1542 1Naphthalene ND

Eurofins TestAmerica Knoxville

12232019Page 16 of 820140

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-2Client Sample ID A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

n-Butylbenzene ND 299 765 ugSample 112919 1045 120619 1542 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

299 645 ugSample 112919 1045 120619 1542 1n-Propylbenzene ND

299 311 ugSample 112919 1045 120619 1542 1o-Xylene ND

299 586 ugSample 112919 1045 120619 1542 1sec-Butylbenzene ND

299 645 ugSample 112919 1045 120619 1542 1Styrene ND

299 526 ugSample 112919 1045 120619 1542 1tert-Butylbenzene ND

299 394 ugSample 112919 1045 120619 1542 1Tetrachloroethene ND

299 550 ugSample 112919 1045 120619 1542 1Toluene ND

299 311 ugSample 112919 1045 120619 1542 1trans-12-Dichloroethene ND

299 105 ugSample 112919 1045 120619 1542 1trans-13-Dichloropropene ND

299 215 ugSample 112919 1045 120619 1542 1Trichloroethene ND

598 574 ugSample 112919 1045 120619 1542 1Trichlorofluoromethane ND

598 143 ugSample 112919 1045 120619 1542 1Vinyl chloride ND

Cyclohexane 433 T J N ugSample 442 110-82-7 112919 1045 120619 1542 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1045 120619 1542 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1045 120619 1542 157 - 152

Dibromofluoromethane (Surr) 105 112919 1045 120619 1542 162 - 134

Toluene-d8 (Surr) 96 112919 1045 120619 1542 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 14800 6370 3190 ugSample 112919 1045 121319 2214 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2630 1200 ugSample 112919 1045 121819 1340 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1040 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 131 50 - 200 120419 1005 120819 1040 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-3Client Sample ID A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 291 384 ugSample 112919 1045 120619 1606 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

582 582 ugSample 112919 1045 120619 1606 111133-Pentafluorobutane ND

Eurofins TestAmerica Knoxville

12232019Page 17 of 820141

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-3Client Sample ID A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

111-Trichloroethane ND 291 419 ugSample 112919 1045 120619 1606 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

582 115 ugSample 112919 1045 120619 1606 1111-Trifluoro-22-dichloroethane ND

582 582 ugSample 112919 1045 120619 1606 1111-Trifluoroethane ND

291 559 ugSample 112919 1045 120619 1606 11122-Tetrachloroethane ND

582 326 ugSample 112919 1045 120619 1606 1112-Trichloro-122-trifluoroethane ND

582 582 ugSample 112919 1045 120619 1606 1112-trichloro-1-fluoroethane ND

291 303 ugSample 112919 1045 120619 1606 1112-Trichloroethane ND

582 291 ugSample 112919 1045 120619 1606 111-Dichloro-1-fluoroethane ND

582 582 ugSample 112919 1045 120619 1606 111-dichloro-22-difluoroethane ND

582 582 ugSample 112919 1045 120619 1606 111-dichloro-22-difluoroethene ND

291 349 ugSample 112919 1045 120619 1606 111-Dichloroethane ND

291 431 ugSample 112919 1045 120619 1606 111-Dichloroethene ND

291 314 ugSample 112919 1045 120619 1606 111-Dichloropropene ND

582 582 ugSample 112919 1045 120619 1606 111-Difluoroethene ND

582 582 ugSample 112919 1045 120619 1606 1122-trichloro-11-difluoroethane ND

291 932 ugSample 112919 1045 120619 1606 1123-Trichlorobenzene ND

291 722 ugSample 112919 1045 120619 1606 1123-Trichloropropane ND

291 978 ugSample 112919 1045 120619 1606 1124-Trichlorobenzene ND

291 606 ugSample 112919 1045 120619 1606 1124-Trimethylbenzene ND

582 102 ugSample 112919 1045 120619 1606 112-Dibromo-3-Chloropropane ND

291 384 ugSample 112919 1045 120619 1606 112-Dibromoethane (EDB) ND

582 582 ugSample 112919 1045 120619 1606 112-dichloro-11-difluoroethane ND

291 512 ugSample 112919 1045 120619 1606 112-Dichlorobenzene ND

291 489 ugSample 112919 1045 120619 1606 112-Dichloroethane ND

291 291 ugSample 112919 1045 120619 1606 112-Dichloropropane ND

291 606 ugSample 112919 1045 120619 1606 1135-Trimethylbenzene ND

291 501 ugSample 112919 1045 120619 1606 113-Dichlorobenzene ND

291 326 ugSample 112919 1045 120619 1606 113-Dichloropropane ND

291 582 ugSample 112919 1045 120619 1606 114-Dichlorobenzene ND

582 594 ugSample 112919 1045 120619 1606 11-Chloro-11-difluoroethane ND

582 582 ugSample 112919 1045 120619 1606 122-dichloro-11-difluoroethylmethyl

ether

ND

291 850 ugSample 112919 1045 120619 1606 122-Dichloropropane ND

116 186 ugSample 112919 1045 120619 1606 12-Butanone (MEK) ND

582 862 ugSample 112919 1045 120619 1606 12-chloro-111444-hexafluoro-2-but

ene

ND

582 582 ugSample 112919 1045 120619 1606 12-Chloro-111-Trifluoroethane ND

291 547 ugSample 112919 1045 120619 1606 12-Chlorotoluene ND

116 268 ugSample 112919 1045 120619 1606 12-Hexanone ND

254 254 ugSample 112919 1045 120619 1606 12-MTP as HFPO ND

291 606 ugSample 112919 1045 120619 1606 14-Chlorotoluene ND

291 780 ugSample 112919 1045 120619 1606 14-Isopropyltoluene ND

116 186 ugSample 112919 1045 120619 1606 14-Methyl-2-pentanone (MIBK) ND

116 687 ugSample 112919 1045 120619 1606 1Acetone ND

291 559 ugSample 112919 1045 120619 1606 1Benzene ND

291 408 ugSample 112919 1045 120619 1606 1Bromobenzene ND

291 652 ugSample 112919 1045 120619 1606 1Bromochloromethane ND

291 501 ugSample 112919 1045 120619 1606 1Bromodichloromethane ND

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12232019Page 18 of 820142

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-3Client Sample ID A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromoform ND 291 885 ugSample 112919 1045 120619 1606 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

582 338 ugSample 112919 1045 120619 1606 1Bromomethane ND

291 722 ugSample 112919 1045 120619 1606 1Carbon disulfide ND

291 384 ugSample 112919 1045 120619 1606 1Carbon tetrachloride ND

850 850 ugSample 112919 1045 120619 1606 1Carbonyl Difluoride ND

291 419 ugSample 112919 1045 120619 1606 1Chlorobenzene ND

291 629 ugSample 112919 1045 120619 1606 1Chlorodibromomethane ND

582 128 ugSample 112919 1045 120619 1606 1Chloroethane ND

291 338 ugSample 112919 1045 120619 1606 1Chloroform ND

582 242 ugSample 112919 1045 120619 1606 1Chloromethane ND

291 233 ugSample 112919 1045 120619 1606 1cis-12-Dichloroethene ND

291 501 ugSample 112919 1045 120619 1606 1cis-13-Dichloropropene ND

291 280 ugSample 112919 1045 120619 1606 1Dibromomethane ND

582 102 ugSample 112919 1045 120619 1606 1Dichlorodifluoromethane ND

291 477 ugSample 112919 1045 120619 1606 1Ethylbenzene ND

291 291 ugSample 112919 1045 120619 1606 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

291 769 ugSample 112919 1045 120619 1606 1Hexachlorobutadiene ND

279 279 ugSample 112919 1045 120619 1606 1HFPO dimer methyl ester as

HFPO-DA

ND

291 408 ugSample 112919 1045 120619 1606 1Isopropylbenzene ND

582 477 ugSample 112919 1045 120619 1606 1mp-Xylene ND

291 186 ugSample 112919 1045 120619 1606 1Methylene Chloride ND

291 140 ugSample 112919 1045 120619 1606 1Naphthalene ND

291 745 ugSample 112919 1045 120619 1606 1n-Butylbenzene ND

291 629 ugSample 112919 1045 120619 1606 1n-Propylbenzene ND

291 303 ugSample 112919 1045 120619 1606 1o-Xylene ND

291 571 ugSample 112919 1045 120619 1606 1sec-Butylbenzene ND

291 629 ugSample 112919 1045 120619 1606 1Styrene ND

291 512 ugSample 112919 1045 120619 1606 1tert-Butylbenzene ND

291 384 ugSample 112919 1045 120619 1606 1Tetrachloroethene ND

291 536 ugSample 112919 1045 120619 1606 1Toluene ND

291 303 ugSample 112919 1045 120619 1606 1trans-12-Dichloroethene ND

291 102 ugSample 112919 1045 120619 1606 1trans-13-Dichloropropene ND

291 210 ugSample 112919 1045 120619 1606 1Trichloroethene ND

582 559 ugSample 112919 1045 120619 1606 1Trichlorofluoromethane ND

582 140 ugSample 112919 1045 120619 1606 1Vinyl chloride ND

Cyclohexane 424 T J N ugSample 442 110-82-7 112919 1045 120619 1606 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1045 120619 1606 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 112919 1045 120619 1606 157 - 152

Dibromofluoromethane (Surr) 104 112919 1045 120619 1606 162 - 134

Toluene-d8 (Surr) 98 112919 1045 120619 1606 171 - 139

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12232019Page 19 of 820143

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-3Client Sample ID A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 6110 J 6210 3110 ugSample 112919 1045 121319 2235 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2560 1160 ugSample 112919 1045 121819 1401 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1044 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 129 50 - 200 120419 1005 120819 1044 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-4Client Sample ID A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 304 402 ugSample 112919 1045 120619 1631 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

608 608 ugSample 112919 1045 120619 1631 111133-Pentafluorobutane ND

304 438 ugSample 112919 1045 120619 1631 1111-Trichloroethane ND

608 120 ugSample 112919 1045 120619 1631 1111-Trifluoro-22-dichloroethane ND

608 608 ugSample 112919 1045 120619 1631 1111-Trifluoroethane ND

304 584 ugSample 112919 1045 120619 1631 11122-Tetrachloroethane ND

608 341 ugSample 112919 1045 120619 1631 1112-Trichloro-122-trifluoroethane ND

608 608 ugSample 112919 1045 120619 1631 1112-trichloro-1-fluoroethane ND

304 316 ugSample 112919 1045 120619 1631 1112-Trichloroethane ND

608 304 ugSample 112919 1045 120619 1631 111-Dichloro-1-fluoroethane ND

608 608 ugSample 112919 1045 120619 1631 111-dichloro-22-difluoroethane ND

608 608 ugSample 112919 1045 120619 1631 111-dichloro-22-difluoroethene ND

304 365 ugSample 112919 1045 120619 1631 111-Dichloroethane ND

304 450 ugSample 112919 1045 120619 1631 111-Dichloroethene ND

304 329 ugSample 112919 1045 120619 1631 111-Dichloropropene ND

608 608 ugSample 112919 1045 120619 1631 111-Difluoroethene ND

608 608 ugSample 112919 1045 120619 1631 1122-trichloro-11-difluoroethane ND

304 974 ugSample 112919 1045 120619 1631 1123-Trichlorobenzene ND

304 754 ugSample 112919 1045 120619 1631 1123-Trichloropropane ND

304 102 ugSample 112919 1045 120619 1631 1124-Trichlorobenzene ND

304 633 ugSample 112919 1045 120619 1631 1124-Trimethylbenzene ND

608 107 ugSample 112919 1045 120619 1631 112-Dibromo-3-Chloropropane ND

304 402 ugSample 112919 1045 120619 1631 112-Dibromoethane (EDB) ND

608 608 ugSample 112919 1045 120619 1631 112-dichloro-11-difluoroethane ND

304 535 ugSample 112919 1045 120619 1631 112-Dichlorobenzene ND

304 511 ugSample 112919 1045 120619 1631 112-Dichloroethane ND

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12232019Page 20 of 820144

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-4Client Sample ID A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

12-Dichloropropane ND 304 304 ugSample 112919 1045 120619 1631 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

304 633 ugSample 112919 1045 120619 1631 1135-Trimethylbenzene ND

304 523 ugSample 112919 1045 120619 1631 113-Dichlorobenzene ND

304 341 ugSample 112919 1045 120619 1631 113-Dichloropropane ND

304 608 ugSample 112919 1045 120619 1631 114-Dichlorobenzene ND

608 621 ugSample 112919 1045 120619 1631 11-Chloro-11-difluoroethane ND

608 608 ugSample 112919 1045 120619 1631 122-dichloro-11-difluoroethylmethyl

ether

ND

304 888 ugSample 112919 1045 120619 1631 122-Dichloropropane ND

122 195 ugSample 112919 1045 120619 1631 12-Butanone (MEK) ND

608 901 ugSample 112919 1045 120619 1631 12-chloro-111444-hexafluoro-2-but

ene

ND

608 608 ugSample 112919 1045 120619 1631 12-Chloro-111-Trifluoroethane ND

304 572 ugSample 112919 1045 120619 1631 12-Chlorotoluene ND

122 280 ugSample 112919 1045 120619 1631 12-Hexanone ND

266 266 ugSample 112919 1045 120619 1631 12-MTP as HFPO ND

304 633 ugSample 112919 1045 120619 1631 14-Chlorotoluene ND

304 815 ugSample 112919 1045 120619 1631 14-Isopropyltoluene ND

122 195 ugSample 112919 1045 120619 1631 14-Methyl-2-pentanone (MIBK) ND

122 718 ugSample 112919 1045 120619 1631 1Acetone ND

304 584 ugSample 112919 1045 120619 1631 1Benzene ND

304 426 ugSample 112919 1045 120619 1631 1Bromobenzene ND

304 681 ugSample 112919 1045 120619 1631 1Bromochloromethane ND

304 523 ugSample 112919 1045 120619 1631 1Bromodichloromethane ND

304 925 ugSample 112919 1045 120619 1631 1Bromoform ND

608 353 ugSample 112919 1045 120619 1631 1Bromomethane ND

304 754 ugSample 112919 1045 120619 1631 1Carbon disulfide ND

304 402 ugSample 112919 1045 120619 1631 1Carbon tetrachloride ND

894 894 ugSample 112919 1045 120619 1631 1Carbonyl Difluoride ND

304 438 ugSample 112919 1045 120619 1631 1Chlorobenzene ND

304 657 ugSample 112919 1045 120619 1631 1Chlorodibromomethane ND

608 134 ugSample 112919 1045 120619 1631 1Chloroethane ND

304 353 ugSample 112919 1045 120619 1631 1Chloroform ND

608 253 ugSample 112919 1045 120619 1631 1Chloromethane ND

304 243 ugSample 112919 1045 120619 1631 1cis-12-Dichloroethene ND

304 523 ugSample 112919 1045 120619 1631 1cis-13-Dichloropropene ND

304 292 ugSample 112919 1045 120619 1631 1Dibromomethane ND

608 107 ugSample 112919 1045 120619 1631 1Dichlorodifluoromethane ND

304 499 ugSample 112919 1045 120619 1631 1Ethylbenzene ND

304 304 ugSample 112919 1045 120619 1631 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

304 803 ugSample 112919 1045 120619 1631 1Hexachlorobutadiene ND

292 292 ugSample 112919 1045 120619 1631 1HFPO dimer methyl ester as

HFPO-DA

ND

304 426 ugSample 112919 1045 120619 1631 1Isopropylbenzene ND

608 499 ugSample 112919 1045 120619 1631 1mp-Xylene ND

304 195 ugSample 112919 1045 120619 1631 1Methylene Chloride ND

304 146 ugSample 112919 1045 120619 1631 1Naphthalene ND

Eurofins TestAmerica Knoxville

12232019Page 21 of 820145

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-4Client Sample ID A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

n-Butylbenzene ND 304 779 ugSample 112919 1045 120619 1631 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

304 657 ugSample 112919 1045 120619 1631 1n-Propylbenzene ND

304 316 ugSample 112919 1045 120619 1631 1o-Xylene ND

304 596 ugSample 112919 1045 120619 1631 1sec-Butylbenzene ND

304 657 ugSample 112919 1045 120619 1631 1Styrene ND

304 535 ugSample 112919 1045 120619 1631 1tert-Butylbenzene ND

304 402 ugSample 112919 1045 120619 1631 1Tetrachloroethene ND

304 560 ugSample 112919 1045 120619 1631 1Toluene ND

304 316 ugSample 112919 1045 120619 1631 1trans-12-Dichloroethene ND

304 107 ugSample 112919 1045 120619 1631 1trans-13-Dichloropropene ND

304 219 ugSample 112919 1045 120619 1631 1Trichloroethene ND

608 584 ugSample 112919 1045 120619 1631 1Trichlorofluoromethane ND

608 146 ugSample 112919 1045 120619 1631 1Vinyl chloride ND

Cyclohexane 454 T J N ugSample 442 110-82-7 112919 1045 120619 1631 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 118 70 - 160 112919 1045 120619 1631 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 110 112919 1045 120619 1631 157 - 152

Dibromofluoromethane (Surr) 104 112919 1045 120619 1631 162 - 134

Toluene-d8 (Surr) 96 112919 1045 120619 1631 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 4170 J 6490 3250 ugSample 112919 1045 121319 2256 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2680 1220 ugSample 112919 1045 121819 1421 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1047 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 126 50 - 200 120419 1005 120819 1047 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1503 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-5Client Sample ID A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 269 355 ugSample 112919 1045 120619 1655 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

538 538 ugSample 112919 1045 120619 1655 111133-Pentafluorobutane ND

Eurofins TestAmerica Knoxville

12232019Page 22 of 820146

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-5Client Sample ID A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

111-Trichloroethane ND 269 387 ugSample 112919 1045 120619 1655 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

538 106 ugSample 112919 1045 120619 1655 1111-Trifluoro-22-dichloroethane ND

538 538 ugSample 112919 1045 120619 1655 1111-Trifluoroethane ND

269 516 ugSample 112919 1045 120619 1655 11122-Tetrachloroethane ND

538 301 ugSample 112919 1045 120619 1655 1112-Trichloro-122-trifluoroethane ND

538 538 ugSample 112919 1045 120619 1655 1112-trichloro-1-fluoroethane ND

269 280 ugSample 112919 1045 120619 1655 1112-Trichloroethane ND

538 269 ugSample 112919 1045 120619 1655 111-Dichloro-1-fluoroethane ND

538 538 ugSample 112919 1045 120619 1655 111-dichloro-22-difluoroethane ND

538 538 ugSample 112919 1045 120619 1655 111-dichloro-22-difluoroethene ND

269 323 ugSample 112919 1045 120619 1655 111-Dichloroethane ND

269 398 ugSample 112919 1045 120619 1655 111-Dichloroethene ND

269 290 ugSample 112919 1045 120619 1655 111-Dichloropropene ND

538 538 ugSample 112919 1045 120619 1655 111-Difluoroethene ND

538 538 ugSample 112919 1045 120619 1655 1122-trichloro-11-difluoroethane ND

269 860 ugSample 112919 1045 120619 1655 1123-Trichlorobenzene ND

269 667 ugSample 112919 1045 120619 1655 1123-Trichloropropane ND

269 903 ugSample 112919 1045 120619 1655 1124-Trichlorobenzene ND

269 559 ugSample 112919 1045 120619 1655 1124-Trimethylbenzene ND

538 946 ugSample 112919 1045 120619 1655 112-Dibromo-3-Chloropropane ND

269 355 ugSample 112919 1045 120619 1655 112-Dibromoethane (EDB) ND

538 538 ugSample 112919 1045 120619 1655 112-dichloro-11-difluoroethane ND

269 473 ugSample 112919 1045 120619 1655 112-Dichlorobenzene ND

269 452 ugSample 112919 1045 120619 1655 112-Dichloroethane ND

269 269 ugSample 112919 1045 120619 1655 112-Dichloropropane ND

269 559 ugSample 112919 1045 120619 1655 1135-Trimethylbenzene ND

269 462 ugSample 112919 1045 120619 1655 113-Dichlorobenzene ND

269 301 ugSample 112919 1045 120619 1655 113-Dichloropropane ND

269 538 ugSample 112919 1045 120619 1655 114-Dichlorobenzene ND

538 548 ugSample 112919 1045 120619 1655 11-Chloro-11-difluoroethane ND

538 538 ugSample 112919 1045 120619 1655 122-dichloro-11-difluoroethylmethyl

ether

ND

269 785 ugSample 112919 1045 120619 1655 122-Dichloropropane ND

108 172 ugSample 112919 1045 120619 1655 12-Butanone (MEK) ND

538 796 ugSample 112919 1045 120619 1655 12-chloro-111444-hexafluoro-2-but

ene

ND

538 538 ugSample 112919 1045 120619 1655 12-Chloro-111-Trifluoroethane ND

269 505 ugSample 112919 1045 120619 1655 12-Chlorotoluene ND

108 247 ugSample 112919 1045 120619 1655 12-Hexanone ND

235 235 ugSample 112919 1045 120619 1655 12-MTP as HFPO ND

269 559 ugSample 112919 1045 120619 1655 14-Chlorotoluene ND

269 720 ugSample 112919 1045 120619 1655 14-Isopropyltoluene ND

108 172 ugSample 112919 1045 120619 1655 14-Methyl-2-pentanone (MIBK) ND

108 634 ugSample 112919 1045 120619 1655 1Acetone ND

269 516 ugSample 112919 1045 120619 1655 1Benzene ND

269 376 ugSample 112919 1045 120619 1655 1Bromobenzene ND

269 602 ugSample 112919 1045 120619 1655 1Bromochloromethane ND

269 462 ugSample 112919 1045 120619 1655 1Bromodichloromethane ND

Eurofins TestAmerica Knoxville

12232019Page 23 of 820147

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-5Client Sample ID A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromoform ND 269 817 ugSample 112919 1045 120619 1655 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

538 312 ugSample 112919 1045 120619 1655 1Bromomethane ND

269 667 ugSample 112919 1045 120619 1655 1Carbon disulfide ND

269 355 ugSample 112919 1045 120619 1655 1Carbon tetrachloride ND

791 791 ugSample 112919 1045 120619 1655 1Carbonyl Difluoride ND

269 387 ugSample 112919 1045 120619 1655 1Chlorobenzene ND

269 581 ugSample 112919 1045 120619 1655 1Chlorodibromomethane ND

538 118 ugSample 112919 1045 120619 1655 1Chloroethane ND

269 312 ugSample 112919 1045 120619 1655 1Chloroform ND

538 224 ugSample 112919 1045 120619 1655 1Chloromethane ND

269 215 ugSample 112919 1045 120619 1655 1cis-12-Dichloroethene ND

269 462 ugSample 112919 1045 120619 1655 1cis-13-Dichloropropene ND

269 258 ugSample 112919 1045 120619 1655 1Dibromomethane ND

538 946 ugSample 112919 1045 120619 1655 1Dichlorodifluoromethane ND

269 441 ugSample 112919 1045 120619 1655 1Ethylbenzene ND

269 269 ugSample 112919 1045 120619 1655 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

269 710 ugSample 112919 1045 120619 1655 1Hexachlorobutadiene ND

258 258 ugSample 112919 1045 120619 1655 1HFPO dimer methyl ester as

HFPO-DA

ND

269 376 ugSample 112919 1045 120619 1655 1Isopropylbenzene ND

538 441 ugSample 112919 1045 120619 1655 1mp-Xylene ND

269 172 ugSample 112919 1045 120619 1655 1Methylene Chloride ND

269 129 ugSample 112919 1045 120619 1655 1Naphthalene ND

269 688 ugSample 112919 1045 120619 1655 1n-Butylbenzene ND

269 581 ugSample 112919 1045 120619 1655 1n-Propylbenzene ND

269 280 ugSample 112919 1045 120619 1655 1o-Xylene ND

269 527 ugSample 112919 1045 120619 1655 1sec-Butylbenzene ND

269 581 ugSample 112919 1045 120619 1655 1Styrene ND

269 473 ugSample 112919 1045 120619 1655 1tert-Butylbenzene ND

269 355 ugSample 112919 1045 120619 1655 1Tetrachloroethene ND

269 495 ugSample 112919 1045 120619 1655 1Toluene ND

269 280 ugSample 112919 1045 120619 1655 1trans-12-Dichloroethene ND

269 946 ugSample 112919 1045 120619 1655 1trans-13-Dichloropropene ND

269 194 ugSample 112919 1045 120619 1655 1Trichloroethene ND

538 516 ugSample 112919 1045 120619 1655 1Trichlorofluoromethane ND

538 129 ugSample 112919 1045 120619 1655 1Vinyl chloride ND

Cyclohexane 436 T J N ugSample 442 110-82-7 112919 1045 120619 1655 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 118 70 - 160 112919 1045 120619 1655 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1045 120619 1655 157 - 152

Dibromofluoromethane (Surr) 103 112919 1045 120619 1655 162 - 134

Toluene-d8 (Surr) 96 112919 1045 120619 1655 171 - 139

Eurofins TestAmerica Knoxville

12232019Page 24 of 820148

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-5Client Sample ID A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine ND 5730 2870 ugSample 112919 1045 121319 2316 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2370 1080 ugSample 112919 1045 121819 1442 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1053 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 125 50 - 200 120419 1005 120819 1053 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1503 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-6Client Sample ID A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 291 384 ugSample 112919 1045 120619 1720 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

582 582 ugSample 112919 1045 120619 1720 111133-Pentafluorobutane ND

291 419 ugSample 112919 1045 120619 1720 1111-Trichloroethane ND

582 115 ugSample 112919 1045 120619 1720 1111-Trifluoro-22-dichloroethane ND

582 582 ugSample 112919 1045 120619 1720 1111-Trifluoroethane ND

291 559 ugSample 112919 1045 120619 1720 11122-Tetrachloroethane ND

582 326 ugSample 112919 1045 120619 1720 1112-Trichloro-122-trifluoroethane ND

582 582 ugSample 112919 1045 120619 1720 1112-trichloro-1-fluoroethane ND

291 303 ugSample 112919 1045 120619 1720 1112-Trichloroethane ND

582 291 ugSample 112919 1045 120619 1720 111-Dichloro-1-fluoroethane ND

582 582 ugSample 112919 1045 120619 1720 111-dichloro-22-difluoroethane ND

582 582 ugSample 112919 1045 120619 1720 111-dichloro-22-difluoroethene ND

291 349 ugSample 112919 1045 120619 1720 111-Dichloroethane ND

291 431 ugSample 112919 1045 120619 1720 111-Dichloroethene ND

291 314 ugSample 112919 1045 120619 1720 111-Dichloropropene ND

582 582 ugSample 112919 1045 120619 1720 111-Difluoroethene ND

582 582 ugSample 112919 1045 120619 1720 1122-trichloro-11-difluoroethane ND

291 931 ugSample 112919 1045 120619 1720 1123-Trichlorobenzene ND

291 722 ugSample 112919 1045 120619 1720 1123-Trichloropropane ND

291 978 ugSample 112919 1045 120619 1720 1124-Trichlorobenzene ND

291 605 ugSample 112919 1045 120619 1720 1124-Trimethylbenzene ND

582 102 ugSample 112919 1045 120619 1720 112-Dibromo-3-Chloropropane ND

291 384 ugSample 112919 1045 120619 1720 112-Dibromoethane (EDB) ND

582 582 ugSample 112919 1045 120619 1720 112-dichloro-11-difluoroethane ND

291 512 ugSample 112919 1045 120619 1720 112-Dichlorobenzene ND

291 489 ugSample 112919 1045 120619 1720 112-Dichloroethane ND

Eurofins TestAmerica Knoxville

12232019Page 25 of 820149

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-6Client Sample ID A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

12-Dichloropropane ND 291 291 ugSample 112919 1045 120619 1720 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

291 605 ugSample 112919 1045 120619 1720 1135-Trimethylbenzene ND

291 501 ugSample 112919 1045 120619 1720 113-Dichlorobenzene ND

291 326 ugSample 112919 1045 120619 1720 113-Dichloropropane ND

291 582 ugSample 112919 1045 120619 1720 114-Dichlorobenzene ND

582 594 ugSample 112919 1045 120619 1720 11-Chloro-11-difluoroethane ND

582 582 ugSample 112919 1045 120619 1720 122-dichloro-11-difluoroethylmethyl

ether

ND

291 850 ugSample 112919 1045 120619 1720 122-Dichloropropane ND

116 186 ugSample 112919 1045 120619 1720 12-Butanone (MEK) ND

582 861 ugSample 112919 1045 120619 1720 12-chloro-111444-hexafluoro-2-but

ene

ND

582 582 ugSample 112919 1045 120619 1720 12-Chloro-111-Trifluoroethane ND

291 547 ugSample 112919 1045 120619 1720 12-Chlorotoluene ND

116 268 ugSample 112919 1045 120619 1720 12-Hexanone ND

254 254 ugSample 112919 1045 120619 1720 12-MTP as HFPO ND

291 605 ugSample 112919 1045 120619 1720 14-Chlorotoluene ND

291 780 ugSample 112919 1045 120619 1720 14-Isopropyltoluene ND

116 186 ugSample 112919 1045 120619 1720 14-Methyl-2-pentanone (MIBK) ND

116 687 ugSample 112919 1045 120619 1720 1Acetone ND

291 559 ugSample 112919 1045 120619 1720 1Benzene ND

291 407 ugSample 112919 1045 120619 1720 1Bromobenzene ND

291 652 ugSample 112919 1045 120619 1720 1Bromochloromethane ND

291 501 ugSample 112919 1045 120619 1720 1Bromodichloromethane ND

291 885 ugSample 112919 1045 120619 1720 1Bromoform ND

582 338 ugSample 112919 1045 120619 1720 1Bromomethane ND

291 722 ugSample 112919 1045 120619 1720 1Carbon disulfide ND

291 384 ugSample 112919 1045 120619 1720 1Carbon tetrachloride ND

850 850 ugSample 112919 1045 120619 1720 1Carbonyl Difluoride ND

291 419 ugSample 112919 1045 120619 1720 1Chlorobenzene ND

291 629 ugSample 112919 1045 120619 1720 1Chlorodibromomethane ND

582 128 ugSample 112919 1045 120619 1720 1Chloroethane ND

291 338 ugSample 112919 1045 120619 1720 1Chloroform ND

582 242 ugSample 112919 1045 120619 1720 1Chloromethane ND

291 233 ugSample 112919 1045 120619 1720 1cis-12-Dichloroethene ND

291 501 ugSample 112919 1045 120619 1720 1cis-13-Dichloropropene ND

291 279 ugSample 112919 1045 120619 1720 1Dibromomethane ND

582 102 ugSample 112919 1045 120619 1720 1Dichlorodifluoromethane ND

291 477 ugSample 112919 1045 120619 1720 1Ethylbenzene ND

291 291 ugSample 112919 1045 120619 1720 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

291 768 ugSample 112919 1045 120619 1720 1Hexachlorobutadiene ND

279 279 ugSample 112919 1045 120619 1720 1HFPO dimer methyl ester as

HFPO-DA

ND

291 407 ugSample 112919 1045 120619 1720 1Isopropylbenzene ND

582 477 ugSample 112919 1045 120619 1720 1mp-Xylene ND

291 186 ugSample 112919 1045 120619 1720 1Methylene Chloride ND

291 140 ugSample 112919 1045 120619 1720 1Naphthalene ND

Eurofins TestAmerica Knoxville

12232019Page 26 of 820150

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-6Client Sample ID A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

n-Butylbenzene ND 291 745 ugSample 112919 1045 120619 1720 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

291 629 ugSample 112919 1045 120619 1720 1n-Propylbenzene ND

291 303 ugSample 112919 1045 120619 1720 1o-Xylene ND

291 570 ugSample 112919 1045 120619 1720 1sec-Butylbenzene ND

291 629 ugSample 112919 1045 120619 1720 1Styrene ND

291 512 ugSample 112919 1045 120619 1720 1tert-Butylbenzene ND

291 384 ugSample 112919 1045 120619 1720 1Tetrachloroethene ND

291 535 ugSample 112919 1045 120619 1720 1Toluene ND

291 303 ugSample 112919 1045 120619 1720 1trans-12-Dichloroethene ND

291 102 ugSample 112919 1045 120619 1720 1trans-13-Dichloropropene ND

291 210 ugSample 112919 1045 120619 1720 1Trichloroethene ND

582 559 ugSample 112919 1045 120619 1720 1Trichlorofluoromethane ND

582 140 ugSample 112919 1045 120619 1720 1Vinyl chloride ND

Tentatively Identified Compound None ugSample 112919 1045 120619 1720 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 119 70 - 160 112919 1045 120619 1720 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1045 120619 1720 157 - 152

Dibromofluoromethane (Surr) 104 112919 1045 120619 1720 162 - 134

Toluene-d8 (Surr) 96 112919 1045 120619 1720 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine ND 6480 3240 ugSample 112919 1045 121319 2337 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2560 1160 ugSample 112919 1045 121819 1503 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1057 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 127 50 - 200 120419 1005 120819 1057 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1503 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-7Client Sample ID A-5786 QC MEOH RBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 203 268 ugSample 112919 1045 120619 1404 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

406 406 ugSample 112919 1045 120619 1404 111133-Pentafluorobutane ND

203 293 ugSample 112919 1045 120619 1404 1111-Trichloroethane ND

Eurofins TestAmerica Knoxville

12232019Page 27 of 820151

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-7Client Sample ID A-5786 QC MEOH RBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

111-Trifluoro-22-dichloroethane ND 406 804 ugSample 112919 1045 120619 1404 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

406 406 ugSample 112919 1045 120619 1404 1111-Trifluoroethane ND

203 390 ugSample 112919 1045 120619 1404 11122-Tetrachloroethane ND

406 228 ugSample 112919 1045 120619 1404 1112-Trichloro-122-trifluoroethane ND

406 406 ugSample 112919 1045 120619 1404 1112-trichloro-1-fluoroethane ND

203 211 ugSample 112919 1045 120619 1404 1112-Trichloroethane ND

406 203 ugSample 112919 1045 120619 1404 111-Dichloro-1-fluoroethane ND

406 406 ugSample 112919 1045 120619 1404 111-dichloro-22-difluoroethane ND

406 406 ugSample 112919 1045 120619 1404 111-dichloro-22-difluoroethene ND

203 244 ugSample 112919 1045 120619 1404 111-Dichloroethane ND

203 301 ugSample 112919 1045 120619 1404 111-Dichloroethene ND

203 219 ugSample 112919 1045 120619 1404 111-Dichloropropene ND

406 406 ugSample 112919 1045 120619 1404 111-Difluoroethene ND

406 406 ugSample 112919 1045 120619 1404 1122-trichloro-11-difluoroethane ND

203 650 ugSample 112919 1045 120619 1404 1123-Trichlorobenzene ND

203 504 ugSample 112919 1045 120619 1404 1123-Trichloropropane ND

203 683 ugSample 112919 1045 120619 1404 1124-Trichlorobenzene ND

203 423 ugSample 112919 1045 120619 1404 1124-Trimethylbenzene ND

406 715 ugSample 112919 1045 120619 1404 112-Dibromo-3-Chloropropane ND

203 268 ugSample 112919 1045 120619 1404 112-Dibromoethane (EDB) ND

406 406 ugSample 112919 1045 120619 1404 112-dichloro-11-difluoroethane ND

203 358 ugSample 112919 1045 120619 1404 112-Dichlorobenzene ND

203 341 ugSample 112919 1045 120619 1404 112-Dichloroethane ND

203 203 ugSample 112919 1045 120619 1404 112-Dichloropropane ND

203 423 ugSample 112919 1045 120619 1404 1135-Trimethylbenzene ND

203 349 ugSample 112919 1045 120619 1404 113-Dichlorobenzene ND

203 228 ugSample 112919 1045 120619 1404 113-Dichloropropane ND

203 406 ugSample 112919 1045 120619 1404 114-Dichlorobenzene ND

406 414 ugSample 112919 1045 120619 1404 11-Chloro-11-difluoroethane ND

406 406 ugSample 112919 1045 120619 1404 122-dichloro-11-difluoroethylmethyl

ether

ND

203 593 ugSample 112919 1045 120619 1404 122-Dichloropropane ND

813 130 ugSample 112919 1045 120619 1404 12-Butanone (MEK) ND

406 601 ugSample 112919 1045 120619 1404 12-chloro-111444-hexafluoro-2-but

ene

ND

406 406 ugSample 112919 1045 120619 1404 12-Chloro-111-Trifluoroethane ND

203 382 ugSample 112919 1045 120619 1404 12-Chlorotoluene ND

813 187 ugSample 112919 1045 120619 1404 12-Hexanone ND

177 177 ugSample 112919 1045 120619 1404 12-MTP as HFPO ND

203 423 ugSample 112919 1045 120619 1404 14-Chlorotoluene ND

203 544 ugSample 112919 1045 120619 1404 14-Isopropyltoluene ND

813 130 ugSample 112919 1045 120619 1404 14-Methyl-2-pentanone (MIBK) ND

813 479 ugSample 112919 1045 120619 1404 1Acetone ND

203 390 ugSample 112919 1045 120619 1404 1Benzene ND

203 284 ugSample 112919 1045 120619 1404 1Bromobenzene ND

203 455 ugSample 112919 1045 120619 1404 1Bromochloromethane ND

203 349 ugSample 112919 1045 120619 1404 1Bromodichloromethane ND

203 618 ugSample 112919 1045 120619 1404 1Bromoform ND

406 236 ugSample 112919 1045 120619 1404 1Bromomethane ND

Eurofins TestAmerica Knoxville

12232019Page 28 of 820152

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-7Client Sample ID A-5786 QC MEOH RBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Carbon disulfide ND 203 504 ugSample 112919 1045 120619 1404 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

203 268 ugSample 112919 1045 120619 1404 1Carbon tetrachloride ND

596 596 ugSample 112919 1045 120619 1404 1Carbonyl Difluoride ND

203 293 ugSample 112919 1045 120619 1404 1Chlorobenzene ND

203 439 ugSample 112919 1045 120619 1404 1Chlorodibromomethane ND

406 894 ugSample 112919 1045 120619 1404 1Chloroethane ND

203 236 ugSample 112919 1045 120619 1404 1Chloroform ND

406 169 ugSample 112919 1045 120619 1404 1Chloromethane ND

203 163 ugSample 112919 1045 120619 1404 1cis-12-Dichloroethene ND

203 349 ugSample 112919 1045 120619 1404 1cis-13-Dichloropropene ND

203 195 ugSample 112919 1045 120619 1404 1Dibromomethane ND

406 715 ugSample 112919 1045 120619 1404 1Dichlorodifluoromethane ND

203 333 ugSample 112919 1045 120619 1404 1Ethylbenzene ND

203 203 ugSample 112919 1045 120619 1404 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

203 536 ugSample 112919 1045 120619 1404 1Hexachlorobutadiene ND

195 195 ugSample 112919 1045 120619 1404 1HFPO dimer methyl ester as

HFPO-DA

ND

203 284 ugSample 112919 1045 120619 1404 1Isopropylbenzene ND

406 333 ugSample 112919 1045 120619 1404 1mp-Xylene ND

203 130 ugSample 112919 1045 120619 1404 1Methylene Chloride 131 J B

203 975 ugSample 112919 1045 120619 1404 1Naphthalene ND

203 520 ugSample 112919 1045 120619 1404 1n-Butylbenzene ND

203 439 ugSample 112919 1045 120619 1404 1n-Propylbenzene ND

203 211 ugSample 112919 1045 120619 1404 1o-Xylene ND

203 398 ugSample 112919 1045 120619 1404 1sec-Butylbenzene ND

203 439 ugSample 112919 1045 120619 1404 1Styrene ND

203 358 ugSample 112919 1045 120619 1404 1tert-Butylbenzene ND

203 268 ugSample 112919 1045 120619 1404 1Tetrachloroethene ND

203 374 ugSample 112919 1045 120619 1404 1Toluene ND

203 211 ugSample 112919 1045 120619 1404 1trans-12-Dichloroethene ND

203 715 ugSample 112919 1045 120619 1404 1trans-13-Dichloropropene ND

203 146 ugSample 112919 1045 120619 1404 1Trichloroethene ND

406 390 ugSample 112919 1045 120619 1404 1Trichlorofluoromethane ND

406 975 ugSample 112919 1045 120619 1404 1Vinyl chloride ND

Cyclohexane 349 T J N ugSample 442 110-82-7 112919 1045 120619 1404 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 116 70 - 160 112919 1045 120619 1404 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 110 112919 1045 120619 1404 157 - 152

Dibromofluoromethane (Surr) 104 112919 1045 120619 1404 162 - 134

Toluene-d8 (Surr) 97 112919 1045 120619 1404 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine ND 4330 2170 ugSample 112919 1045 121319 2358 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

1790 813 ugSample 112919 1045 121819 1524 20Hydrogen Fluoride ND

Eurofins TestAmerica Knoxville

12232019Page 29 of 820153

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-7Client Sample ID A-5786 QC MEOH RBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 00106 J 00250 000500 ugSample 120419 1005 120819 1100 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 125 50 - 200 120419 1005 120819 1100 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1503 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-8Client Sample ID A-5787 QC MEOH TBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 154 203 ugSample 112919 1045 120619 1428 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

308 308 ugSample 112919 1045 120619 1428 111133-Pentafluorobutane ND

154 222 ugSample 112919 1045 120619 1428 1111-Trichloroethane ND

308 609 ugSample 112919 1045 120619 1428 1111-Trifluoro-22-dichloroethane ND

308 308 ugSample 112919 1045 120619 1428 1111-Trifluoroethane ND

154 295 ugSample 112919 1045 120619 1428 11122-Tetrachloroethane ND

308 172 ugSample 112919 1045 120619 1428 1112-Trichloro-122-trifluoroethane ND

308 308 ugSample 112919 1045 120619 1428 1112-trichloro-1-fluoroethane ND

154 160 ugSample 112919 1045 120619 1428 1112-Trichloroethane ND

308 154 ugSample 112919 1045 120619 1428 111-Dichloro-1-fluoroethane ND

308 308 ugSample 112919 1045 120619 1428 111-dichloro-22-difluoroethane ND

308 308 ugSample 112919 1045 120619 1428 111-dichloro-22-difluoroethene ND

154 185 ugSample 112919 1045 120619 1428 111-Dichloroethane ND

154 228 ugSample 112919 1045 120619 1428 111-Dichloroethene ND

154 166 ugSample 112919 1045 120619 1428 111-Dichloropropene ND

308 308 ugSample 112919 1045 120619 1428 111-Difluoroethene ND

308 308 ugSample 112919 1045 120619 1428 1122-trichloro-11-difluoroethane ND

154 492 ugSample 112919 1045 120619 1428 1123-Trichlorobenzene ND

154 382 ugSample 112919 1045 120619 1428 1123-Trichloropropane ND

154 517 ugSample 112919 1045 120619 1428 1124-Trichlorobenzene ND

154 320 ugSample 112919 1045 120619 1428 1124-Trimethylbenzene ND

308 542 ugSample 112919 1045 120619 1428 112-Dibromo-3-Chloropropane ND

154 203 ugSample 112919 1045 120619 1428 112-Dibromoethane (EDB) ND

308 308 ugSample 112919 1045 120619 1428 112-dichloro-11-difluoroethane ND

154 271 ugSample 112919 1045 120619 1428 112-Dichlorobenzene ND

154 259 ugSample 112919 1045 120619 1428 112-Dichloroethane ND

154 154 ugSample 112919 1045 120619 1428 112-Dichloropropane ND

154 320 ugSample 112919 1045 120619 1428 1135-Trimethylbenzene ND

154 265 ugSample 112919 1045 120619 1428 113-Dichlorobenzene ND

154 172 ugSample 112919 1045 120619 1428 113-Dichloropropane ND

154 308 ugSample 112919 1045 120619 1428 114-Dichlorobenzene ND

308 314 ugSample 112919 1045 120619 1428 11-Chloro-11-difluoroethane ND

308 308 ugSample 112919 1045 120619 1428 122-dichloro-11-difluoroethylmethyl

ether

ND

Eurofins TestAmerica Knoxville

12232019Page 30 of 820154

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-8Client Sample ID A-5787 QC MEOH TBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

22-Dichloropropane ND 154 449 ugSample 112919 1045 120619 1428 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

616 985 ugSample 112919 1045 120619 1428 12-Butanone (MEK) ND

308 455 ugSample 112919 1045 120619 1428 12-chloro-111444-hexafluoro-2-but

ene

ND

308 308 ugSample 112919 1045 120619 1428 12-Chloro-111-Trifluoroethane ND

154 289 ugSample 112919 1045 120619 1428 12-Chlorotoluene ND

616 142 ugSample 112919 1045 120619 1428 12-Hexanone ND

135 135 ugSample 112919 1045 120619 1428 12-MTP as HFPO ND

154 320 ugSample 112919 1045 120619 1428 14-Chlorotoluene ND

154 412 ugSample 112919 1045 120619 1428 14-Isopropyltoluene ND

616 985 ugSample 112919 1045 120619 1428 14-Methyl-2-pentanone (MIBK) ND

616 363 ugSample 112919 1045 120619 1428 1Acetone ND

154 295 ugSample 112919 1045 120619 1428 1Benzene ND

154 215 ugSample 112919 1045 120619 1428 1Bromobenzene ND

154 345 ugSample 112919 1045 120619 1428 1Bromochloromethane ND

154 265 ugSample 112919 1045 120619 1428 1Bromodichloromethane ND

154 468 ugSample 112919 1045 120619 1428 1Bromoform ND

308 178 ugSample 112919 1045 120619 1428 1Bromomethane ND

154 382 ugSample 112919 1045 120619 1428 1Carbon disulfide ND

154 203 ugSample 112919 1045 120619 1428 1Carbon tetrachloride ND

451 451 ugSample 112919 1045 120619 1428 1Carbonyl Difluoride ND

154 222 ugSample 112919 1045 120619 1428 1Chlorobenzene ND

154 332 ugSample 112919 1045 120619 1428 1Chlorodibromomethane ND

308 677 ugSample 112919 1045 120619 1428 1Chloroethane ND

154 178 ugSample 112919 1045 120619 1428 1Chloroform ND

308 128 ugSample 112919 1045 120619 1428 1Chloromethane ND

154 123 ugSample 112919 1045 120619 1428 1cis-12-Dichloroethene ND

154 265 ugSample 112919 1045 120619 1428 1cis-13-Dichloropropene ND

154 148 ugSample 112919 1045 120619 1428 1Dibromomethane ND

308 542 ugSample 112919 1045 120619 1428 1Dichlorodifluoromethane ND

154 252 ugSample 112919 1045 120619 1428 1Ethylbenzene ND

154 154 ugSample 112919 1045 120619 1428 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

154 406 ugSample 112919 1045 120619 1428 1Hexachlorobutadiene ND

148 148 ugSample 112919 1045 120619 1428 1HFPO dimer methyl ester as

HFPO-DA

ND

154 215 ugSample 112919 1045 120619 1428 1Isopropylbenzene ND

308 252 ugSample 112919 1045 120619 1428 1mp-Xylene ND

154 985 ugSample 112919 1045 120619 1428 1Methylene Chloride 101 J B

154 739 ugSample 112919 1045 120619 1428 1Naphthalene ND

154 394 ugSample 112919 1045 120619 1428 1n-Butylbenzene ND

154 332 ugSample 112919 1045 120619 1428 1n-Propylbenzene ND

154 160 ugSample 112919 1045 120619 1428 1o-Xylene ND

154 302 ugSample 112919 1045 120619 1428 1sec-Butylbenzene ND

154 332 ugSample 112919 1045 120619 1428 1Styrene ND

154 271 ugSample 112919 1045 120619 1428 1tert-Butylbenzene ND

154 203 ugSample 112919 1045 120619 1428 1Tetrachloroethene ND

154 283 ugSample 112919 1045 120619 1428 1Toluene ND

154 160 ugSample 112919 1045 120619 1428 1trans-12-Dichloroethene ND

Eurofins TestAmerica Knoxville

12232019Page 31 of 820155

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-8Client Sample ID A-5787 QC MEOH TBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

trans-13-Dichloropropene ND 154 542 ugSample 112919 1045 120619 1428 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

154 111 ugSample 112919 1045 120619 1428 1Trichloroethene ND

308 295 ugSample 112919 1045 120619 1428 1Trichlorofluoromethane ND

308 739 ugSample 112919 1045 120619 1428 1Vinyl chloride ND

Cyclohexane 417 T J N ugSample 442 110-82-7 112919 1045 120619 1428 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 119 70 - 160 112919 1045 120619 1428 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 112919 1045 120619 1428 157 - 152

Dibromofluoromethane (Surr) 105 112919 1045 120619 1428 162 - 134

Toluene-d8 (Surr) 96 112919 1045 120619 1428 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 9720 3280 1640 ugSample 112919 1045 121419 0018 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

1350 616 ugSample 112919 1045 121919 0919 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1103 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 125 50 - 200 120419 1005 120819 1103 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1503 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-9Client Sample ID A-5788 QC MEOH PBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 181 238 ugSample 112919 1045 120619 1453 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

361 361 ugSample 112919 1045 120619 1453 111133-Pentafluorobutane ND

181 260 ugSample 112919 1045 120619 1453 1111-Trichloroethane ND

361 715 ugSample 112919 1045 120619 1453 1111-Trifluoro-22-dichloroethane ND

361 361 ugSample 112919 1045 120619 1453 1111-Trifluoroethane ND

181 347 ugSample 112919 1045 120619 1453 11122-Tetrachloroethane ND

361 202 ugSample 112919 1045 120619 1453 1112-Trichloro-122-trifluoroethane ND

361 361 ugSample 112919 1045 120619 1453 1112-trichloro-1-fluoroethane ND

181 188 ugSample 112919 1045 120619 1453 1112-Trichloroethane ND

361 181 ugSample 112919 1045 120619 1453 111-Dichloro-1-fluoroethane ND

361 361 ugSample 112919 1045 120619 1453 111-dichloro-22-difluoroethane ND

361 361 ugSample 112919 1045 120619 1453 111-dichloro-22-difluoroethene ND

181 217 ugSample 112919 1045 120619 1453 111-Dichloroethane ND

Eurofins TestAmerica Knoxville

12232019Page 32 of 820156

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-9Client Sample ID A-5788 QC MEOH PBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

11-Dichloroethene ND 181 267 ugSample 112919 1045 120619 1453 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

181 195 ugSample 112919 1045 120619 1453 111-Dichloropropene ND

361 361 ugSample 112919 1045 120619 1453 111-Difluoroethene ND

361 361 ugSample 112919 1045 120619 1453 1122-trichloro-11-difluoroethane ND

181 578 ugSample 112919 1045 120619 1453 1123-Trichlorobenzene ND

181 448 ugSample 112919 1045 120619 1453 1123-Trichloropropane ND

181 607 ugSample 112919 1045 120619 1453 1124-Trichlorobenzene ND

181 375 ugSample 112919 1045 120619 1453 1124-Trimethylbenzene ND

361 635 ugSample 112919 1045 120619 1453 112-Dibromo-3-Chloropropane ND

181 238 ugSample 112919 1045 120619 1453 112-Dibromoethane (EDB) ND

361 361 ugSample 112919 1045 120619 1453 112-dichloro-11-difluoroethane ND

181 318 ugSample 112919 1045 120619 1453 112-Dichlorobenzene ND

181 303 ugSample 112919 1045 120619 1453 112-Dichloroethane ND

181 181 ugSample 112919 1045 120619 1453 112-Dichloropropane ND

181 375 ugSample 112919 1045 120619 1453 1135-Trimethylbenzene ND

181 311 ugSample 112919 1045 120619 1453 113-Dichlorobenzene ND

181 202 ugSample 112919 1045 120619 1453 113-Dichloropropane ND

181 361 ugSample 112919 1045 120619 1453 114-Dichlorobenzene ND

361 368 ugSample 112919 1045 120619 1453 11-Chloro-11-difluoroethane ND

361 361 ugSample 112919 1045 120619 1453 122-dichloro-11-difluoroethylmethyl

ether

ND

181 527 ugSample 112919 1045 120619 1453 122-Dichloropropane ND

722 116 ugSample 112919 1045 120619 1453 12-Butanone (MEK) ND

361 534 ugSample 112919 1045 120619 1453 12-chloro-111444-hexafluoro-2-but

ene

ND

361 361 ugSample 112919 1045 120619 1453 12-Chloro-111-Trifluoroethane ND

181 339 ugSample 112919 1045 120619 1453 12-Chlorotoluene ND

722 166 ugSample 112919 1045 120619 1453 12-Hexanone ND

158 158 ugSample 112919 1045 120619 1453 12-MTP as HFPO ND

181 375 ugSample 112919 1045 120619 1453 14-Chlorotoluene ND

181 484 ugSample 112919 1045 120619 1453 14-Isopropyltoluene ND

722 116 ugSample 112919 1045 120619 1453 14-Methyl-2-pentanone (MIBK) ND

722 426 ugSample 112919 1045 120619 1453 1Acetone ND

181 347 ugSample 112919 1045 120619 1453 1Benzene ND

181 253 ugSample 112919 1045 120619 1453 1Bromobenzene ND

181 404 ugSample 112919 1045 120619 1453 1Bromochloromethane ND

181 311 ugSample 112919 1045 120619 1453 1Bromodichloromethane ND

181 549 ugSample 112919 1045 120619 1453 1Bromoform ND

361 209 ugSample 112919 1045 120619 1453 1Bromomethane ND

181 448 ugSample 112919 1045 120619 1453 1Carbon disulfide ND

181 238 ugSample 112919 1045 120619 1453 1Carbon tetrachloride ND

529 529 ugSample 112919 1045 120619 1453 1Carbonyl Difluoride ND

181 260 ugSample 112919 1045 120619 1453 1Chlorobenzene ND

181 390 ugSample 112919 1045 120619 1453 1Chlorodibromomethane ND

361 794 ugSample 112919 1045 120619 1453 1Chloroethane ND

181 209 ugSample 112919 1045 120619 1453 1Chloroform ND

361 150 ugSample 112919 1045 120619 1453 1Chloromethane ND

181 144 ugSample 112919 1045 120619 1453 1cis-12-Dichloroethene ND

181 311 ugSample 112919 1045 120619 1453 1cis-13-Dichloropropene ND

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12232019Page 33 of 820157

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-9Client Sample ID A-5788 QC MEOH PBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Dibromomethane ND 181 173 ugSample 112919 1045 120619 1453 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

361 635 ugSample 112919 1045 120619 1453 1Dichlorodifluoromethane ND

181 296 ugSample 112919 1045 120619 1453 1Ethylbenzene ND

181 181 ugSample 112919 1045 120619 1453 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

181 477 ugSample 112919 1045 120619 1453 1Hexachlorobutadiene ND

174 174 ugSample 112919 1045 120619 1453 1HFPO dimer methyl ester as

HFPO-DA

ND

181 253 ugSample 112919 1045 120619 1453 1Isopropylbenzene ND

361 296 ugSample 112919 1045 120619 1453 1mp-Xylene ND

181 116 ugSample 112919 1045 120619 1453 1Methylene Chloride 136 J B

181 867 ugSample 112919 1045 120619 1453 1Naphthalene ND

181 462 ugSample 112919 1045 120619 1453 1n-Butylbenzene ND

181 390 ugSample 112919 1045 120619 1453 1n-Propylbenzene ND

181 188 ugSample 112919 1045 120619 1453 1o-Xylene ND

181 354 ugSample 112919 1045 120619 1453 1sec-Butylbenzene ND

181 390 ugSample 112919 1045 120619 1453 1Styrene ND

181 318 ugSample 112919 1045 120619 1453 1tert-Butylbenzene ND

181 238 ugSample 112919 1045 120619 1453 1Tetrachloroethene ND

181 332 ugSample 112919 1045 120619 1453 1Toluene ND

181 188 ugSample 112919 1045 120619 1453 1trans-12-Dichloroethene ND

181 635 ugSample 112919 1045 120619 1453 1trans-13-Dichloropropene ND

181 130 ugSample 112919 1045 120619 1453 1Trichloroethene ND

361 347 ugSample 112919 1045 120619 1453 1Trichlorofluoromethane ND

361 867 ugSample 112919 1045 120619 1453 1Vinyl chloride ND

Cyclohexane 280 T J N ugSample 442 110-82-7 112919 1045 120619 1453 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1045 120619 1453 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 108 112919 1045 120619 1453 157 - 152

Dibromofluoromethane (Surr) 104 112919 1045 120619 1453 162 - 134

Toluene-d8 (Surr) 96 112919 1045 120619 1453 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 2450 J 3850 1930 ugSample 112919 1045 121419 0039 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

1590 722 ugSample 112919 1045 121919 0940 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1106 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 131 50 - 200 120419 1005 120819 1106 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1503 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Eurofins TestAmerica Knoxville

12232019Page 34 of 820158

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17462-1ProjectSite VEN MM-18 Field QC

Method 8260B - Volatile Organic Compounds (GCMS)Prep MeOH Prep

2501112-Tetrachloroethane ugSample

Analyte UnitsMDLRL

0330

50011133-Pentafluorobutane ugSample0500

250111-Trichloroethane ugSample0360

500111-Trifluoro-22-dichloroethane ugSample0990

500111-Trifluoroethane ugSample0500

2501122-Tetrachloroethane ugSample0480

500112-Trichloro-122-trifluoroethane ugSample0280

500112-trichloro-1-fluoroethane ugSample0500

250112-Trichloroethane ugSample0260

50011-Dichloro-1-fluoroethane ugSample250

50011-dichloro-22-difluoroethane ugSample0500

50011-dichloro-22-difluoroethene ugSample0500

25011-Dichloroethane ugSample0300

25011-Dichloroethene ugSample0370

25011-Dichloropropene ugSample0270

50011-Difluoroethene ugSample500

500122-trichloro-11-difluoroethane ugSample0500

250123-Trichlorobenzene ugSample0800

250123-Trichloropropane ugSample0620

250124-Trichlorobenzene ugSample0840

250124-Trimethylbenzene ugSample0520

50012-Dibromo-3-Chloropropane ugSample0880

25012-Dibromoethane (EDB) ugSample0330

50012-dichloro-11-difluoroethane ugSample0500

25012-Dichlorobenzene ugSample0440

25012-Dichloroethane ugSample0420

25012-Dichloropropane ugSample0250

250135-Trimethylbenzene ugSample0520

25013-Dichlorobenzene ugSample0430

25013-Dichloropropane ugSample0280

25014-Dichlorobenzene ugSample0500

5001-Chloro-11-difluoroethane ugSample0510

50022-dichloro-11-difluoroethylmethyl ether ugSample0500

25022-Dichloropropane ugSample0730

1002-Butanone (MEK) ugSample160

5002-chloro-111444-hexafluoro-2-butene ugSample0740

5002-Chloro-111-Trifluoroethane ugSample0500

2502-Chlorotoluene ugSample0470

1002-Hexanone ugSample230

2502-MTP as HFPO ugSample250

2504-Chlorotoluene ugSample0520

2504-Isopropyltoluene ugSample0670

1004-Methyl-2-pentanone (MIBK) ugSample160

100Acetone ugSample590

250Benzene ugSample0480

250Bromobenzene ugSample0350

250Bromochloromethane ugSample0560

250Bromodichloromethane ugSample0430

250Bromoform ugSample0760

500Bromomethane ugSample290

250Carbon disulfide ugSample0620

250Carbon tetrachloride ugSample0330

Eurofins TestAmerica Knoxville

12232019Page 35 of 820159

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17462-1ProjectSite VEN MM-18 Field QC

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)Prep MeOH Prep

100Carbonyl Difluoride ugSample

Analyte UnitsMDLRL

100

250Chlorobenzene ugSample0360

250Chlorodibromomethane ugSample0540

500Chloroethane ugSample110

250Chloroform ugSample0290

500Chloromethane ugSample208

250cis-12-Dichloroethene ugSample0200

250cis-13-Dichloropropene ugSample0430

250Dibromomethane ugSample0240

500Dichlorodifluoromethane ugSample0880

250Ethylbenzene ugSample0410

250Heptafluoropropyl 1222-tetrafluoroethyl ether ugSample250

250Hexachlorobutadiene ugSample0660

250HFPO dimer methyl ester as HFPO-DA ugSample250

250Isopropylbenzene ugSample0350

500mp-Xylene ugSample0410

250Methylene Chloride ugSample160

250Naphthalene ugSample120

250n-Butylbenzene ugSample0640

250n-Propylbenzene ugSample0540

250o-Xylene ugSample0260

250sec-Butylbenzene ugSample0490

250Styrene ugSample0540

250tert-Butylbenzene ugSample0440

250Tetrachloroethene ugSample0330

250Toluene ugSample0460

250trans-12-Dichloroethene ugSample0260

250trans-13-Dichloropropene ugSample0880

250Trichloroethene ugSample0180

500Trichlorofluoromethane ugSample0480

500Vinyl chloride ugSample120

Method 9056 - Anions Ion ChromatographyPrep MeOH Prep

110Hydrogen Fluoride ugSample

Analyte UnitsMDLRL

500

1000Total Fluorine ugSample500

Method 8321A - PFOA and PFOSPrep None

0100HFPO-DA ugSample

Analyte UnitsMDLRL

00200

Eurofins TestAmerica Knoxville

12232019Page 36 of 820160

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

APPENDIX D SAMPLE CALCULATIONS

161

123120191101 AM 112219 Div Stack M0010

EXAMPLE CALCULATIONS FORVOLUMETRIC FLOW AND MOISTURE AND ISOKINETICS

Client Chemours Facility Fayetteville NCTest Number Run 1 Test Date 112219Test Location Division Stack Test Period 0826-1022

1 Volume of dry gas sampled at standard conditions (68 deg F 2992 in Hg) dscf

delta H 1764 x Y x Vm x ( Pb + ------------ )

136Vm(std) = --------------------------------------------

(Tm + 460)

14031764 x 09972 x 63136 x ( 3002 + --------------------- )

136Vm(std) = ------------------------------------------------------------ = 64704

5704 + 460

Where

Vm(std) = Volume of gas sample measured by the dry gas metercorrected to standard conditions dscf

Vm = Volume of gas sample measured by the dry gas meterat meter conditions dcf

Pb = Barometric Pressure in Hgdelt H = Average pressure drop across the orifice meter in H2O

Tm = Average dry gas meter temperature deg FY = Dry gas meter calibration factor

1764 = Factor that includes ratio of standard temperature (528 deg R)to standard pressure (2992 in Hg) deg Rin Hg

136 = Specific gravity of mercury

2 Volume of water vapor in the gas sample corrected to standard conditions scf

Vw(std) = (004707 x Vwc) + (004715 x Wwsg)

Vw(std) = ( 004707 x 100 ) + ( 004715 x 244 ) = 162

Where

Vw(std) = Volume of water vapor in the gas sample corrected tostandard conditions scf

Vwc = Volume of liquid condensed in impingers mlWwsg = Weight of water vapor collected in silica gel g

004707 = Factor which includes the density of water(0002201 lbml) the molecular weight of water(180 lblb-mole) the ideal gas constant2185 (in Hg) (ft3)lb-mole)(deg R) absolutetemperature at standard conditions (528 deg R) absolutepressure at standard conditions (2992 in Hg) ft3ml

004715 = Factor which includes the molecular weight of water(180 lblb-mole) the ideal gas constant2185 (in Hg) (ft3)lb-mole)(deg R) absolutetemperature at standard conditions (528 deg R) absolutepressure at standard conditions (2992 in Hg) and4536 glb ft3g

162

123120191101 AM 112219 Div Stack M0010

3 Moisture content

Vw(std)bws = -------------------------

Vw(std) + Vm(std)

162bws = ------------------------- = 0024

162 + 64704

Where

bws = Proportion of water vapor by volume in the gasstream dimensionless

4 Mole fraction of dry gas

Md = 1 - bws

Md = 1 - 0024 = 0976

Where

Md = Mole fraction of dry gas dimensionless

5 Dry molecular weight of gas stream lblb-mole

MWd = ( 0440 x CO2 ) + ( 0320 x O2 ) + ( 0280 x ( N2 + CO) )

MWd = ( 0440 x 00 ) + ( 0320 x 209 ) + (0280 x ( 791 + 000 ))

MWd = 2884

Where

MWd = Dry molecular weight lblb-mole CO2 = Percent carbon dioxide by volume dry basis

O2 = Percent oxygen by volume dry basis N2 = Percent nitrogen by volume dry basis

CO = Percent carbon monoxide by volume dry basis0440 = Molecular weight of carbon dioxide divided by 1000320 = Molecular weight of oxygen divided by 1000280 = Molecular weight of nitrogen or carbon monoxide

divided by 100

6 Actual molecular weight of gas stream (wet basis) lblb-mole

MWs = ( MWd x Md ) + ( 18 x ( 1 - Md ))

MWs = ( 2884 x 0976 ) +( 18 ( 1 - 0976 )) = 2857

Where

MWs = Molecular weight of wet gas lblb-mole18 = Molecular weight of water lblb-mole

163

123120191101 AM 112219 Div Stack M0010

7 Average velocity of gas stream at actual conditions ftsec

Ts (avg)Vs = 8549 x Cp x ((delt p)12)avg x ( ---------------- )12

Ps x MWs

532Vs = 8549 x 084 x 145039 x ( -------------------- )^12 = 820

2999 x 2857Where

Vs = Average gas stream velocity ftsec (lblb-mole)(in Hg)12

8549 = Pitot tube constant ftsec x ------------------------------------ (deg R)(in H2O)

Cp = Pitot tube coefficient dimensionlessTs = Absolute gas stream temperature deg R = Ts deg F + 460

P(static)Ps = Absolute gas stack pressure in Hg = Pb + --------------

136delt p = Velocity head of stack in H2O

8 Average gas stream volumetric flow rate at actual conditions wacfmin

Qs(act) = 60 x Vs x As

Qs(act) = 60 x 820 x 707 = 34799

Where

Qs(act) = Volumetric flow rate of wet stack gas at actualconditions wacfmin

As = Cross-sectional area of stack ft260 = Conversion factor from seconds to minutes

9 Average gas stream dry volumetric flow rate at standard conditions dscfmin

PsQs(std) = 1764 x Md x ----- x Qs(act)

Ts

2999Qs(std) = 1764 x 0976 x -------------------- x 34799

5316

Qs(std) = 33787

Where

Qs(std) = Volumetric flow rate of dry stack gas at standardconditions dscfmin

164

123120191101 AM 112219 Div Stack M0010

10 Isokinetic variation calculated from intermediate values percent

17327 x Ts x Vm(std)I = -----------------------------------

Vs x O x Ps x Md x (Dn)2

17327 x 532 x 64704I = -------------------------------------------------- = 1010

820 x 96 x 2999 x 0976 x (0160)^2Where

I = Percent of isokinetic samplingO = Total sampling time minutes

Dn = Diameter of nozzle inches17327 = Factor which includes standard temperature (528 deg R)

standard pressure (2992 in Hg) the formula forcalculating area of circle D24 conversion of squarefeet to square inches (144) conversion of secondsto minutes (60) and conversion to percent (100)(in Hg)(in2)(min) (deg R)(ft2)(sec)

165

1320201218 PM 112219 Div Stack M0010

SAMPLE CALCULATIONS FORHFPO DIMER ACID (METHOD 0010)

Client Chemours Plant Fayetteville NCTest Number Run 1 Test Date 112219Test Location Divison Stack Test Period 0826-1022

1 HFPO Dimer Acid concentration lbsdscf

W x 22046 x 10-9

Conc1 = ------------------------------ Vm(std)

223 x 22046 x 10-9Conc1 = ------------------------------

64704

Conc1 = 760E-10

Where

W = Weight of HFPO Dimer Acid collected in sample in ug

Conc1 = Division Stack HFPO Dimer Acid concentration lbsdscf

22046x10-9 = Conversion factor from ug to lbs

2 HFPO Dimer Acid concentration ugdscm

Conc2 = W ( Vm(std) x 002832)

Conc2 = 223 ( 64704 x 002832 )

Conc2 = 122E+01

Where

Conc2 = Division Stack HFPO Dimer Acid concentration ugdscm

002832 = Conversion factor from cubic feet to cubic meters

166

1320201218 PM 112219 Div Stack M0010

3 HFPO Dimer Acid mass emission rate lbshr

MR1(Outlet) = Conc1 x Qs(std) x 60 minhr

MR1(Outlet) = 760E-10 x 33787 x 60

MR1(Outlet) = 154E-03

Where

MR1(Outlet) = Division Stack HFPO Dimer Acid mass emission rate lbshr

4 HFPO Dimer Acid mass emission rate gsec

MR2(Outlet) = PMR1 x 45359 3600

MR2(Outlet) = 154E-03 x 45359 3600

MR2(Outlet) = 194E-04

Where

MR2(Outlet) = Division Stack HFPO Dimer Acid mass emission rate gsec

4536 = Conversion factor from pounds to grams

3600 = Conversion factor from hours to seconds

167

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

APPENDIX E EQUIPMENT CALIBRATION RECORDS

168

P-694 all in oneMOD

Pitot Tube Identification Number

Inspection Date 21919 Individual Conducting Inspection

Distance to A Plane (PA) - inches 046 PASSDistance to B Plane (PB) - inches 046 PASS

Pitot OD (Dt) - inches 0375105 Dt lt P lt 15 Dt PA must Equal PB

Q1 and Q2 must be lt 10o

B1 or B2 must be lt 5o

Z must be lt 0125 inches

W must be lt 003125 inches

X must be gt 075 inches

Thermocouple meets the Distance Criteria in the adjacent figure

Impact Pressure Opening Plane is above the Nozzle Entry Plane

NO

NA

NO

NA

PASS

PASS

PASS

Distance between Sample Nozzle and Pitot (X) - inches

Thermocouple meets the Distance Criteria in the adjacent figure

YES

YES

PASS

NO YES

NA

0

0

Angle of B1 from vertical A Tube- degrees (absolute) 0

0

08

Horizontal offset between A and B Tubes (Z) - inches

Vertical offset between A and B Tubes (W) - inches

0004

0015

PASSFAIL

Angle of B1 from vertical B Tube- degrees (absolute)

PASS

PASS

PASS

P-694

ks

Angle of Q1 from vertical A Tube- degrees (absolute)

Angle of Q2 from vertical B Tube- degrees (absolute)

Type S Pitot Tube Inspection Data Form

Are Open Faces Aligned Perpendicular to the Tube Axis

YES NOPASS

If all Criteria PASS Cp is equal to 084

Sample Probe

Type S Pitot Tube

Temperature Sensor

Dt

2 inch

Sample Probe

Temperature Sensor

DtType S Pitot Tube

3 inch

34 inch

A B

Face Opening Planes

AB

AB

Q1 Q1 Q2

B B

B

A A

A

FlowFlow

B1(+)B1(-)

B2(+ or -)

B1(+ or -)

B-Side Plane

AB

PA

PB

A-Side PlaneDt

X

Sampling D

Impact Pressure Opening Plane

Nozzle Entry Plane

W

B

A

B

A

Z

169

Long Cal Box_30 2-21-19

Calibrator MDW Meter Box Number 30 Ambient Temp 72

Date 21-Feb-19 Wet Test Meter Number P-2952 Temp Reference Source

Dry Gas Meter Number 17485131

Setting

in H20

(∆H) ft3

(Vw)ft3

(Vd)

oF (Tw)

Outlet oF (Tdo)

Inlet oF (Tdi)

Average oF (Td)

Time min (O)

Y ∆H

905750 7000 7000910724 7000 7000

4974 7000 7000911701 7100 7100916685 7100 7100

4984 7100 7100917680 7200 7200927695 7400 740010015 7300 7300

928690 7400 7400938780 7500 750010090 7450 7450

939800 7600 7600949930 7700 770010130 7650 7650

Average 09972 18715

Vw - Gas Volume passing through the wet test meter 0 - Time of calibration runVd - Gas Volume passing through the dry gas meter Pb - Barometric PressureTw - Temp of gas in the wet test meterTdi - Temp of the inlet gas of the dry gas meterTdo - Temp of the outlet gas of the dry gas meterTd - Average temp of the gas in the dry gas meter

1 2 3 4 5 632 32 32 32 32 320 00

212 213 213 212 212 2124 -01932 933 933 932 932 9324 00

1832 1832 1832 1832 1832 18320 001 - Channel Temps must agree with +- 5oF or 3oC

2 - Acceptable Temperature Difference less than 15

20 100

18501128 10002

Dry Gas Meter

700

05 700

10

Long Cal and Temperature Cal Datasheet for Standard Dry Gas Meter Console

Orifice Manometer

Wet Test Meter

Dry gas Meter

Gas Volume

1822450 700 700 90

Y - Ratio of accuracy of wet test meter to dry gas meter

∆H - Pressure differential across orifice

30 100 700

TemperaturesWet Test

Meter

680

15 100

10007

50

700

107 09910

725

745

18894

18851130 09946

150 09995

9321832

Reference Temperature

Select Temperature

oC oF

21232

Average Temperature

Reading

Thermocouple Simulator

(Accuracy +- 1oF)

Temp

Difference 2

()

Temperature Reading from Individual Thermocouple Input 1

Channel Number

19103

Calibration Results

Baro Press in Hg ( Pb)

2987

760

( ) ( )

( )( ) 2

Vw

O460tw

460tdPb

H03170H

460tw613

HPbVd

)460td(PbVwY

lowast+

lowast

+lowast

∆lowast=∆

+lowast

+lowast

+lowastlowast=

( )( ) ( )( )( )

+

+minus+=

460FTempferenceRe

460FTempTest460FTempferenceReDiffTemp

o

oo

170

Y Factor Calibration Check CalculationMODIFIED METHOD 0010 TEST TRAIN

DIVISION STACKMETER BOX NO 30

11222019Run 1 Run 2

MWd = Dry molecular weight source gas lblb-mole032 = Molecular weight of oxygen divided by 100044 = Molecular weight of carbon dioxide divided by 100028 = Molecular weight of nitrogen or carbon monoxide divided by 100

CO2 = Percent carbon dioxide by volume dry basis 00 00 O2 = Percent oxygen by volume dry basis 209 209

MWd = ( 032 O2 ) + ( 044 CO2 ) + ( 028 ( 100 - ( CO2 + O2 )))

MWd = ( 032 209 ) + ( 044 0 ) + ( 028 ( 100 - ( 0 + 209 )))

MWd = ( 669 ) + ( 000 ) + ( 2215 )

MWd = 2884 2884

Tma = Source Temperature absolute(oR)Tm = Average dry gas meter temperature deg F 570 652

Tma = Ts + 460

Tma = 5704 + 460

Tma = 51704 52519

Ps = Absolute meter pressure inches Hg1360 = Specific gravity of mercury

delta H = Avg pressure drop across the orifice meter during sampling in H2O 140 100Pb = Barometric Pressure in Hg 3002 3002

Pm = Pb + (delta H 136)

Pm = 3002 + ( 14025 136)

Pm = 3012 3009

Yqa = dry gas meter calibration check value dimensionless003 = (2992528)(075)2 (in HgdegR) cfm2

2900 = dry molecular weight of air lblb-moleVm = Volume of gas sample measured by the dry gas meter at meter conditions dcf 63136 47088

Y = Dry gas meter calibration factor (based on full calibration) 09972 09972Delta H = Dry Gas meter orifice calibration coefficient in H2O 18715 18715

avg SQRT Delta H = Avg SQRT press drop across the orifice meter during sampling in H2O 11783 09984O = Total sampling time minutes 96 84

Yqa = (O Vm ) SQRT ( 00319 Tma 29 ) ( Delta H Pm MWd ) avg SQRT Delta H

Yqa = ( 9600 6314 ) SQRT ( 00319 51704 29 ) ( 187 3012 2884 ) 118

Yqa = 1521 SQRT 478315 1625473 118

Yqa = 09719 09742

Diff = Absolute difference between Yqa and Y 254 231

Diff = (( Y - Yqa ) Y ) 100

Diff = (( 09972 - 0972 ) 09972 ) 100

Average Diff = 243

Allowable = 50

1220201119 AM 112219 Div Stack M0010171

Long Cal Vost Box 5 11-29-18

Calibrator PM VOST Box Number VOST 5 Ambient Temp 72

Date 29-Nov-18 Wet Test Meter Number 10BB-1 Temp Reference Source

Dry Gas Meter Number 3605443

Resultsin H20

(∆H)liters (Vw)

liters (Vd)

oF (Tw)

Outlet oC (Tdo)

Inlet oC (Tdi)

Average oF (Td)

Time min (O)

Y

0000 2000 20004890 2050 20504890 2025 21600000 2050 20509772 2100 21009772 2075 22800000 2220 222014768 2220 222014768 2220 22200000 2280 228020034 2280 228020034 2280 2280

Average 10088

Vw - Gas Volume passing through the wet test meter 0 - Time of calibration runVd - Gas Volume passing through the dry gas meter Pb - Barometric PressureTw - Temp of gas in the wet test meterTdi - Temp of the inlet gas of the dry gas meter

Tdo - Temp of the outlet gas of the dry gas meterTd - Average temp of the gas in the dry gas meter

oC oF1 2 3 4 5 60 0 0 0 00 00

100 100 100 100 1000 00500 500 500 500 5000 001000 1000 1000 1000 10000 00

1 - Channel Temps must agree with +- 5oF or 3oC

2 - Acceptable Temperature Difference less than 15

Wet Test Meter

Dry gas MeterWet Test

Meter

Gas Volume

50045 725

10154

685 102 10137

695085 100

2975

730 200 09943

110 10118

100

720

Dry Gas Meter

Temperatures

20 200

725

725

150 72515 17

Setting

Roto-meter

Liters per minute

12

Orifice Manometer

120

Long Cal and Temperature Cal Datasheet for VOST Dry Gas Meter Console

∆H - Pressure differential across orifice

Y - Ratio of accuracy of wet test meter to dry gas meter

Thermocouple Simulator

(Accuracy +- 1oF)

Baro Press in Hg ( Pb)

20 23

050 070

100

Temp

Difference 2 ()

Average Temperature

Reading

0

500100

1000

Channel Number

Temperature Reading from Individual Thermocouple Input 1

Select Temperature

Reference Temperature

( ) ( )

( )( ) 2

Vw

O460tw

460tdPb

H03170H

460tw613

HPbVd

)460td(PbVwY

lowast+

lowast

+lowast∆lowast

=∆

+lowast

+lowast

+lowastlowast=

( )( ) ( )( )( )

+

+minus+=

460FTempferenceRe

460FTempTest460FTempferenceReDiffTemp

o

oo

172

Long Cal Vost Box 8 9_21_2019

Calibrator MDW VOST Box Number VOST 8 Ambient Temp 73

Date 21-Sep-19 Wet Test Meter Number 10BB-1 Temp Reference Source

Dry Gas Meter Number 3602380

Resultsin H20

(∆H)liters (Vw)

liters (Vd)

oF (Tw)

Outlet oC (Tdo)

Inlet oC (Tdi)

Average oF (Td)

Time min (O)

Y

0000 2400 24002999 2400 24002999 2400 24000000 2400 24008960 2400 24008960 2400 24000000 2400 24009934 2400 24009934 2400 24000000 2400 240018700 2400 240018700 2400 2400

Average 10088

Vw - Gas Volume passing through the wet test meter 0 - Time of calibration runVd - Gas Volume passing through the dry gas meter Pb - Barometric PressureTw - Temp of gas in the wet test meterTdi - Temp of the inlet gas of the dry gas meter

Tdo - Temp of the outlet gas of the dry gas meterTd - Average temp of the gas in the dry gas meter

oC oF1 2 3 4 5 632 32 32 32 320 00212 212 212 212 2120 00932 932 932 932 9320 001829 1829 1829 1829 18290 01

1 - Channel Temps must agree with +- 5oF or 3oC

2 - Acceptable Temperature Difference less than 15

Wet Test Meter

Dry gas MeterWet Test

Meter

Gas Volume

30000 720

10093

750 118 10060

750035 90

3008

710 99 10099

100 10099

178

750

Dry Gas Meter

Temperatures

170 190

720

720

100 720

050

10 10

Setting

Roto-meter

Liters per minute

100

Orifice Manometer

050

1832

Long Cal and Temperature Cal Datasheet for VOST Dry Gas Meter Console

∆H - Pressure differential across orifice

Y - Ratio of accuracy of wet test meter to dry gas meter

Thermocouple Simulator

(Accuracy +- 1oF)

Baro Press in Hg ( Pb)

20 20

025 025

Channel Number

Temperature Reading from Individual Thermocouple Input 1 Temp

Difference 2 ()

Average Temperature

Reading

32

932212

Select Temperature

Reference Temperature

( ) ( )

( )( ) 2

Vw

O460tw

460tdPb

H03170H

460tw613

HPbVd

)460td(PbVwY

lowast+

lowast

+lowast∆lowast

=∆

+lowast

+lowast

+lowastlowast=

( )( ) ( )( )( )

+

+minus+=

460FTempferenceRe

460FTempTest460FTempferenceReDiffTemp

o

oo

173

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

APPENDIX F LIST OF PROJECT PARTICIPANTS

174

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

The following WESTON employees participated in this project

Paul Meeter Senior Project Manager

Jeff OrsquoNeill Senior Project Manager

Wes Fritz Senior Project Manager

Matt Winkeler Team Member

Kyle Schweitzer Team Member

Brandon Berger Team Member

175

  • ADPB5DBtmp
    • FIELD DATA CALCS
    • SemiVol Results
      • ADPD0DEtmp
        • Data input
        • results
          • ADP152tmp
            • SEMIVOLCALC
              • ADPD8Ftmp
                • Data input
                • results
                  • ADP2D63tmp
                    • results
                      • ADP5868tmp
                        • Data input
                          • ADPE9F3tmp
                            • results
                              • ADP2499tmp
                                • Data input
                                • results
                                  • ADP6F7Etmp
                                    • Data input
                                    • results

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 iii

LIST OF TABLES

Title Page

Table 1-1 Sampling Plan for Division Stack 3

Table 2-1 Summary of HFPO Dimer Acid Division Stack Test Results 4

Table 2-2 Summary of Target Compound Division Stack Test Results 4

Table 6-1 Summary of HFPO Dimer Acid Test Data and Test Results Division Stack ndash M0010

Runs 1 and 2 20

Table 6-2 Summary of Target Compound Test Data and Test Results Division Stack ndash MM18

Runs 1 2 and 3 22

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 1

1 INTRODUCTION

11 FACILITY AND BACKGROUND INFORMATION

The Chemours Fayetteville Works (Chemours) is located in Bladen County North Carolina

approximately 10 miles south of the city of Fayetteville Chemours operating areas on the site

include the Fluoromonomers IXM and Polymers Processing Aid (PPA) manufacturing areas

Wastewater Treatment and Powerhouse

Chemours contracted Weston Solutions Inc (Weston) to perform HFPO Dimer Acid Fluoride

captured as HFPO Dimer Acid and other target compound emission testing on the Division

stack at the facility Testing was performed on 22 November and 4 December 2019 and generally

followed the ldquoEmission Test Protocolrdquo reviewed and approved by the North Carolina

Department of Environmental Quality (NCDEQ) This report provides the results from the

emission test program

12 TEST OBJECTIVES

The specific objectives for this test program were as follows

Measure the emissions concentrations and mass emissions rates of HFPO Dimer Acid Fluoride and other target compounds from the Division stack which is located in the Fluoromonomers process area

Monitor and record process and emissions control data in conjunction with the test program

Provide representative emissions data

13 TEST PROGRAM OVERVIEW

During the emissions test program the concentrations and mass emissions rates of HFPO Dimer

Acid and other target compounds were measured at the Division stack

Table 1-1 provides a summary of the test location and the parameters that were measured along

with the samplinganalytical procedures that were followed

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 2

Section 2 provides a summary of test results A description of the processes is provided in

Section 3 Section 4 provides a description of the test locations The sampling and analytical

procedures are provided in Section 5 Detailed test results and discussion are provided in

Section 6

Appendix C includes the summary reports for the laboratory analytical results The full

laboratory data packages are provided in electronic format

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 4

2 SUMMARY OF TEST RESULTS

A total of three MM18 and two M0010 test runs were performed on the Division stack Table 2-1

provides a summary of the HFPO Dimer Acid emissions test results associated with M0010

Table 2-2 provides a summary of the target compound emissions test results associated with

MM18 Detailed test results summaries are provided in Section 6

It is important to note that emphasis is being placed on the characterization of the emissions

based on the M0010 stack test results Research conducted in developing the protocol for stack

testing HFPO Dimer Acid Fluoride HFPO Dimer Acid Ammonium Salt and HFPO Dimer Acid

realized that the resulting testing including collection of the air samples and extraction of the

various fraction of the sampling train would result in all three compounds being expressed as

simply the HFPO Dimer Acid However it should be understood that the total M0010 HFPO

Dimer Acid results provided in Table 2-1 and in this report include a percentage of each of the

three compounds

Table 2-1 Summary of M0010 HFPO Dimer Acid Division Stack Test Results

Division Stack ndash M0010 gsec lbhr

R1 194E-04 154E-03 R2 339E-04 269E-03 Average 266E-04 212E-03

Samples taken using MM18 were analyzed for the following volatile organic compounds (ldquotarget

compoundsrdquo) HFPO Dimer Methyl Ester as HFPO (HFPO Dimer Methyl Ester) 2-MTP as

HFPO (HFPO Monomer) Heptafluoropropyl 1222-tetrafluoroethyl ether (Fluoroether E-1)

Carbonyl Difluoride Total Fluorine and Hydrogen Fluoride Results of MM18 target compound

analysis are provided in Table 2-2

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 5

Table 2-2 Summary of MM18 Target Compound Division Stack Test Results

Target Compound

Division Stack MM18 Run 1

Division Stack MM18 Run 2

Division Stack MM18 Run 3

gsec lbhr gsec lbhr gsec lbhr HFPO Dimer Methyl Ester

lt438E-03 lt348E-02 lt260E-03 lt207E-02 lt263E-03 lt209E-02

HFPO Monomer

374E-01 297E+00 315E-01 250E+00 192E+00 153E+01

Fluoroether E-1

291E-02 231E-01 667E-02 530E-01 241E-02 192E-01

Carbonyl Difluoride

lt134E-02 lt106E-01 lt796E-03 lt633E-02 lt803E-03 lt638E-02

Total Fluorine

727E+00 578E+01 594E+00 472E+01 140E+01 111E+02

Hydrogen Fluoride

lt182E-01 lt145E+00 lt109-01 lt863E-01 lt110E-01 lt870E-01

Note All lt values were below the laboratory analysis detection limits Emission rates were calculated using the method detection limit (MDL) for the first analytical fraction of the target compound

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 6

3 PROCESS DESCRIPTIONS

The Fluoromonomers area is included in the scope of this test program

31 FLUOROMONOMERS

These facilities produce a family of fluorocarbon compounds used to produce Chemours

products such as Nafionreg Krytoxreg and Vitonreg as well as sales to outside customers

At the time of testing process emissions were vented to the Division waste gas scrubber system

(which included the secondary scrubber) and vented to the Carbon Bed and then into the

Division stack The VE North building air systems were vented to the Carbon Bed and then into

the Division stack

32 PROCESS OPERATIONS AND PARAMETERS

The following table is a summary of the operation and products from the specific areas tested

Source OperationProduct Batch or Continuous VE North

PPVE Condensation is continuous Agitated Bed Reactor and Refining are batch

During the test program the following parameters were monitored by Chemours and are

included in Appendix A

Fluoromonomers Process o VEN Precurser Rate o VEN Condensation Rate o VEN ABR Rate

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 7

4 DESCRIPTION OF TEST LOCATIONS

41 DIVISION STACK

Two 6-inch ID test ports were installed on the 36-inch ID fiberglass stack as shown below The

four vents that enter the top of the stack and the one vent ~11 feet below are catch pots which

under normal process operations do not discharge to the stack They are used to vent process gas

to the stack in the event of a process upset and are not considered a flow contributor or a

disturbance

Per EPA Method 1 a total of 12 traverse points (six per axis) were used for M-0010 isokinetic

sampling Figure 4-1 provides a schematic of the test ports and traverse point locations

Location Distance from Flow Disturbance Downstream (B) Upstream (A)

Division Stack 30 feet gt 10 duct diameters

9 feet gt 3 diameters

The EPA Method 18 sample was collected at a constant rate at a single point at the approximate

center of the stack

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 9

5 SAMPLING AND ANALYTICAL METHODS

51 STACK GAS SAMPLING PROCEDURES

The purpose of this section is to describe the stack gas emissions sampling trains and to provide

details of the stack sampling and analytical procedures utilized during the emissions test

program

511 Pre-Test Determinations

Preliminary test data were obtained at the test location Stack geometry measurements were

measured and recorded and traverse point distances verified A preliminary velocity traverse

was performed utilizing a calibrated S-type pitot tube and an inclined manometer to determine

velocity profiles Flue gas temperatures were observed with a calibrated direct readout panel

meter equipped with a chromel-alumel thermocouple Preliminary water vapor content was

estimated by wet bulbdry bulb temperature measurements

A check for the presence or absence of cyclonic flow was previously conducted at the test

location The cyclonic flow check was negative (lt 20deg) verifying that the test location was

acceptable for testing

Preliminary test data was used for nozzle sizing and sampling rate determinations for isokinetic

sampling procedures

Calibration of probe nozzles pitot tubes metering systems and temperature measurement

devices was performed as specified in Section 5 of EPA Method 5 test procedures

52 STACK PARAMETERS

521 EPA Method 0010

The sampling train utilized to perform the HFPO Dimer Acid sampling at the location was an

EPA Method 0010 train (see Figure 5-1) The Method 0010 consisted of a borosilicate nozzle

that attached directly to a heated borosilicate probe In order to minimize possible thermal

degradation of the HFPO Dimer Acid the probe and particulate filter were heated above stack

temperature to minimize water vapor condensation before the filter The probe was connected

directly to a heated borosilicate filter holder containing a solvent extracted glass fiber filter

18

10

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 11

A section of borosilicate glass or flexible polyethylene tubing connected the filter holder exit to a

Grahm (spiral) type ice water-cooled condenser an ice water-jacketed sorbent module containing

approximately 40 grams of XAD-2 resin The XAD-2 resin tube was equipped with an inlet

temperature sensor The XAD-2 resin trap was followed by a condensate knockout impinger and

a series of two impingers that contained 100 mL of high-purity distilled water The train also

included a second XAD-2 resin trap behind the impinger section to evaluate possible sampling

train breakthrough Each XAD-2 resin trap was connected to a 1-liter condensate knockout trap

The final impinger contained 300 grams of dry pre-weighed silica gel All impingers and the

condensate traps were maintained in an ice bath Ice water was continuously circulated in the

condenser and the XAD-2 module to maintain method-required temperature A control console

with a leakless vacuum pump a calibrated orifice and dual inclined manometers was connected

to the final impinger via an umbilical cord to complete the sample train

HFPO Dimer Acid Fluoride (CAS No 2062-98-8) that is present in the stack gas is expected to

be captured in the sampling train along with HFPO Dimer Acid (CAS No 13252-13-6) HFPO

Dimer Acid Fluoride underwent hydrolysis instantaneously in water in the sampling train and

during the sample recovery step and was converted to HFPO Dimer Acid such that the amount

of HFPO Dimer Acid emissions represented a combination of both HFPO Dimer Acid Fluoride

and HFPO Dimer Acid

During sampling gas stream velocities were measured by attaching a calibrated S-type pitot tube

into the gas stream adjacent to the sampling nozzle The velocity pressure differential was

observed immediately after positioning the nozzle at each traverse point and the sampling rate

adjusted to maintain isokineticity at 100 plusmn 10 Flue gas temperature was monitored at each

point with a calibrated panel meter and thermocouple Isokinetic test data was recorded at each

traverse point during all test periods as appropriate Leak checks were performed on the

sampling apparatus according to reference method instructions prior to and following each run

component change (if required) or during midpoint port changes

522 EPA Method 0010 Sample Recovery

At the conclusion of each test the sampling train was dismantled the openings sealed and the

components transported to the field laboratory trailer for recovery

A consistent procedure was employed for sample recovery

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 12

1 The two XAD-2 covered (to minimize light degradation) sorbent modules (1 and 2) weresealed and labeled

2 The glass fiber filter(s) were removed from the holder with tweezers and placed in apolyethylene container along with any loose particulate and filter fragments

3 The particulate adhering to the internal surfaces of the nozzle probe and front half of thefilter holder were rinsed with a solution of methanol and ammonium hydroxide into apolyethylene container while brushing a minimum of three times until no visibleparticulate remained Particulate adhering to the brush was rinsed with methanolammonium hydroxide into the same container The container was sealed

4 The volume of liquid collected in the first condensate trap was measured the valuerecorded and the contents poured into a polyethylene container

5 All train components between the filter exit and the first condensate trap were rinsed withmethanolammonium hydroxide The solvent rinse was placed in a separate polyethylenecontainer and sealed

6 The volume of liquid in impingers one and two and the second condensate trap weremeasured the values recorded and the sample was placed in the same container as Step 4above then sealed

7 The two impingers condensate trap and connectors were rinsed with methanolammonium hydroxide The solvent sample was placed in a separate polyethylenecontainer and sealed

8 The silica gel in the final impinger was weighed and the weight gain value recorded

9 Site (reagent) blank samples of the methanolammonium hydroxide XAD resin filterand distilled water were retained for analysis

Each container was labeled to clearly identify its contents All samples were maintained cool

Following sample recovery all samples were transported to Eurofins TestAmerica

(TestAmerica) for sample extraction and analysis

See Figure 5-2 for a schematic of the Method 0010 sample recovery process

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 13

523 EPA Method 0010 Sample Analysis

Method 0010 sampling trains resulted in four separate analytical fractions for HFPO Dimer Acid

analysis according to SW-846 Method 3542

Front-half Compositemdashcomprised of the particulate filter and the probe nozzle and

front-half of the filter holder solvent rinses

Back-half Compositemdashcomprised of the first XAD-2 resin material and the back-half of

the filter holder with connecting glassware solvent rinses

Condensate Compositemdashcomprised of the aqueous condensates and the contents of

impingers one and two with solvent rinses

Breakthrough XAD-2 Resin Tubemdashcomprised of the resin tube behind the series of

impingers

The second XAD-2 resin material was analyzed separately to evaluate any possible sampling

train HFPO-DA breakthrough

The front-half and back-half composites and the second XAD-2 resin material were placed in

polypropylene wide-mouth bottles and tumbled with methanol containing 5 NH4OH for 18

hours Portions of the extracts were processed analytically for the HFPO dimer acid by liquid

chromatography and duel mass spectroscopy (HPLCMSMS) The condensate composite was

concentrated onto a solid phase extraction (SPE) cartridge followed by desorption from the

cartridge using methanol Portions of those extracts were also processed analytically by

HPLCMSMS

18

3

14

VACUUM LINEMAINVALVE

TEMPERATURESENSORS

BY-PASS VALVE

DRY GASMETER

CUBIC LITERS

ORIFICE

VACUUMGAUGE

AIR-TIGHT

PUMP

DRY ICE AND METHANOL

BATH

METHANOL IN EACH IMPINGER

FIGURE 5-3MODIFIED EPA METHOD 18 SAMPLING TRAIN FOR PFAS COMPOUNDS

GLASS IMPINGERS

STACK WALL

PLASTIC OR GLASS PROBE

PRESSUREDIFFERENTIAL

GAUGE

8 3 18

16

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 17

54 GAS COMPOSITION

The Weston mobile laboratory equipped with instrumental analyzers was used to measure carbon

dioxide (CO2) and oxygen (O2) concentrations A diagram of the Weston sampling system is

presented in Figure 5-4

For the Division stack test campaign the sample was collected at the exhaust of the Method

0010 sampling system At the end of the line a tee permitted the introduction of calibration gas

The sample was drawn through a heated Teflonreg sample line to the sample conditioner The

output from the sampling system was recorded electronically and one minute averages were

recorded and displayed on a data logger

Each analyzer was set up and calibrated internally by introduction of calibration gas standards

directly to the analyzer from a calibration manifold The calibration manifold is designed with an

atmospheric vent to release excess calibration gas and maintained the calibration at ambient

pressure The direct calibration sequence consisted of alternate injections of zero and mid-range

gases with appropriate adjustments until the desired responses were obtained The high-range

standards were then introduced in sequence without further adjustment

The sample line integrity was verified by performing a bias test before and after each test period

The sampling system bias test consisted of introducing the zero gas and one up-range calibration

standard in excess to the valve at the probe end when the system was sampling normally The

excess calibration gas flowed out through the probe to maintain ambient sampling system

pressure Calibration gas supply was regulated to maintain constant sampling rate and pressure

Instrument bias check response was compared to internal calibration responses to insure sample

line integrity and to calculate a bias correction factor after each run using the ratio of the

measured concentration of the bias gas certified by the calibration gas supplier

The oxygen and carbon dioxide content of each stack gas was measured according to EPA

Method 3A procedures which incorporate the latest updates of EPA Method 7E A Servomex

Model 4900 analyzer (or equivalent) was used to measure oxygen content A Servomex Model

4900 analyzer (or equivalent) was used to measure carbon dioxide content of the stack gas Both

analyzers were calibrated with EPA Protocol gases prior to the start of the test program and

performance was verified by sample bias checks before and after each test run

I

4

184

18

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 19

6 DETAILED TEST RESULTS AND DISCUSSION

M0010 test run number two was stopped prior to the full run time due to a process upset in the

area The run was considered complete and the sample was recovered and submitted for analysis

A total of two M0010 test runs were performed at the location A total of three MM18 test runs

were performed at the location

Table 6-1 provides detailed M0010 test data and test results for Division stack Table 6-2

provides detailed MM18 test data and test results for the Division stack

The Method 3A sampling indicated that the O2 and CO2 concentrations were at ambient air

levels (209 O2 0 CO2) therefore 209 O2 and 0 CO2 values were used in all

calculations

It should be noted that methylene chloride was identified in the MM18 analytical results This

detection was due to a special procedure done in the process area in which methylene chloride

was used to unplug equipment that experienced plugging during testing Methylene chloride

would not typically be detected in this process area

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

APPENDIX A PROCESS OPERATIONS DATA

24

Division

Date 11222019TimeStack TestingHFPOVEN ProductVEN PrecursorVEN Condensation (HFPO)VEN ABRVEN RefiningStripper Column VentDivision WGS Recirculation FlowDivision WGS Inlet Flow

Date 1242019TimeStack TestingHFPOVEN ProductVEN PrecursorVEN Condensation (HFPO)VEN ABRVEN RefiningStripper Column VentDivision WGS Recirculation FlowDivision WGS Inlet Flow

800 900 1000 1100 1300 1400 1500 1600RUN 1 0826-1022 RUN 2 - 1139-1320

1200

PPVE

Burnout

15000 kgh142 kgh 145 kgh 148 kgh 150 kgh 135 kgh 128 kgh 74 kgh103 kgh

RUN 3 0955-1125

PPVE

800 900 1000 1100

15000 kgh65 kgh 73 kgh 110 kgh

25

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

APPENDIX B RAW AND REDUCED TEST DATA

26

Sample and Velocity Traverse Point Data Sheet - Method 1

Client CJtl 11 eAAI Operator Loact1onPlant Vltf t fcu I le v Date 2J- l

Source ( v ) _5 -rj(L W O Number JT(t O

Duct Type Circular D Rectangular Duct Indicate eppropMate type

Traverse Type II( Particulate Traverse D Velocity Traverse D CEM Traverse

Distance from far wall to outside of oort lln l = C ltdeglt ) Flow Disturbances -

Port Deoth (in) = D 121 ur Upstream - A (ft) (1 (t I

Deoth or Duct diameter (inI= C-D I (I Area of Duct (ff) -11 7 01 - - --

Total Traverse Points 1 I tJ fa

Total Traverse Points oer Port

Port Diameter flnl-Flanae-Threaded-Holel l I

Monorail Lenoth t) Rectangular Ducts Onty

Width of Duct rectanaular duct only (In I Total Ports (rectanoular duct only) Eauivalent Diameter= 12middotL Wl(L+W)

Traverse Point Locations

Distance from Traverse Inside Duct Distance1from Outside of

Point of Duct Wallinl Portin)

1 1 i I 1- I b2 jtmicro 1poundgt

2 ( gt-0 h A il1

l y gtf-uir 7 vr

3 21 I09S- timiddot 1T 1e 1 tJ lDI 1

Igt 4 7 V

5

6

7

8

10

11

12

1

2

3

9S i 31 9 l- t

Cf5lv 35)7 $ f

- L

4Mre (

CEM 3 Polnl(Long Measurmbullnt Unbull) StraUflcaton POnt Locations

0167

050

0833 Note If stack dla lt 12 inch use EPA Method 1A

(Sample port upstream of pilot port) Note stack dia gt24 then adjust traverse point to 1 inch from wall

If stack dia lt24 then adjust traverse point to 05 inch from wall

l 2 T I 146

r 2 854 ) L

4 bull 0

r C 5 bull a 6 o I 7

8 p 0 o n 9

I 10

n II 12

Traverso Point Location Ptrcant of Stack Circular

J 4

67

25

75

i

NwnberofT IPoints 5 6 8

44 32

146 tQ5

296 194

704 123

854 677

956 8D6

895

96B

9 10

26

82 146

226

)42

658

774

1154 918

974

ll

tfltr

middotltt

12

21

67 118 111

25

l56

644

15

823

w 9)3

979

Downstream - B (ft) -

91 Qt

Upstream - A (duct diameters t

Downstream - B duct diameters) 61Diagram of Stack

11 _ ---

ltl Igt-

ry middoti 5D -

j

--

Duct 0middot1ameters Upstream from Flow Disturbance (Distance A

05 1 0 1 5 20 25 50

I I I I I I I

Stack Diametergt 24 Inches deg t

40 - A

plusmn --- -middot

Minimum Number cf bull

l

JO -Particulate Traverse Points

l _

24 (chular) 25 (mctangulw dlJdltl)

20 -

Traverse Polllls for Velocity 16

12

I 10 _ Disturbance =Band Expansion Contraction etc

B(tmJiir)lilj

S1adDlaarDti1224Rnefl

4

Duct Dlemehn Downstraam from Acv Dl1furbance (Olslenca B)

Travers Point Location Panent of Stack ootanaular

NIJlber ofTnrne Polnls I 2 l 4 5 6 7 8 9 10 II ll

T I 250 167 125 100 8J 71 6J 56 50 45 41

2 7SO 51l0 31J 300 25J ZIA 18J 167 ISII llli 11l J 8) 3 625 500 417 )57 JU 278 250 227 208 l

4 75 70I ID 5110 431 IU 310 318 29Z o 5 900 750 60 563 500 4SO 409 Jll a 6 911 JU 611 U ru tea 458 I 7 C29 813 722 650 91 l4l

i tu w 750 42 ill p 0

o n i 944 850 m 708 I 10 i5JI 1164 191

II 955 875 12 JJI

27

CHEMOURS - FAYETTEVILLE NCINPUTS FOR HFPO DIMER ACID CALCULATIONS

DIVISION STACK

Test DataRun number 1 2Location Divison Stack Divison StackDate 112219 112219Time period 0826-1022 1139-1324Operator BB BB

Inputs For CalcsSq rt delta P 145039 122804Delta H 14025 10010Stack temp (degF) 716 794Meter temp (degF) 570 652Sample volume (act) 63136 47088Barometric press (inHg) 3002 3002Volume H2O imp (ml) 100 70Weight change sil gel (g) 244 145 CO2 00 00 O2 209 209 N2 791 791Area of stack (sqft) 7070 7070Sample time (min) 960 840Static pressure (inH2O) -035 -035Nozzle dia (in) 0160 0160Meter box cal 09972 09972Cp of pitot tube 084 084Traverse points 12 12

122020 1102 AM 112219 Div Stack M001028

ISOKINETIC FIELD DATA SHEET EPA Method 0010 - HFPO Dimer Acid Page J~ orb client chemours Stack Conditions Meter Box ID K Factor Q wo 15418002018 Assumed Actual MeterBox Y rjq7 a Project ID Chemours Moisture ^~ 3 Meter Box Del H ~ $j ~~ Illltlal Mid-Point Final ModeSource ID Division Impinger Vol (ml) Probe ID Length L~~ ~ Sample Train (ft3) o o D 5 GAO U (~(~ Samp Loc ID STK Silica gel (g) Probe Material ~Boro Leak Check (in Hg) `~ ~ S ~~ ~

Run NoID 1 CO2 deg by Vol Q Pitot Thermocouple ID Pitot leak check good yes no no no Test Method ID M0010 02 by Vol ~ ~ Pitot Coe~cient 84~r Pitot Inspection good no ye no no Date ID NOV2019 Temperature (degF) ~ Noale ID ~~ Method 3 System good yes no yes no yes no SourceLocation Div(sion Stack Meter Temp (F) l~ Noale Measurements ~ 6 p ~ LO Temp Check re-Test Set POSt-Test Set Sample Date ~ Static Press (in H2O) mdash ~ 3 ~j ~J Avg Noale Dia (in) ~ ~ 6 bull ~ Meter Box Temp

Baro Press (in Hg) Area of Stack (ftz) Q~ Reference Temp Operator Ambient Temp (degF) ~ ~ Sample Time `~ (~ PasslFail (+- 2deg~ Pass Fail Pass Fail

Total Traverse Pts ~ a Temp Change Response ~ yes no yes no

~~r~~~-

~~mdash~~ ~ ~ ~ ~ ~ i ~~~~mdash

~~-~~~Itibull1~~~ bull ~~~~~~~_~~

~~-~ I ~~~~~~~~~- ~~~

avg uena r ( vvg uerca ry

a ~ ~Ib J Ava Sart Delta P Avo Sart Dei t

i oral vowme~ ( b vvg i s

~~~ nments

J ~lr ~ ~~~~13~

J

vvg i m J rvun~nnax rvunlnnax nnax rwax vac nnin~rv~ax

~~ d ltltu~~~~ te6~~~~( sq g H~ly~ EPA Method 0010 from EPA SW- 46

(~ Q~ ~~~ 29

ISOHINETIC FIELD DATA SHEET EPA Method 0010 - HFPO Dimer Acid Page ~ or 1 Client Chemours Stack Conditions Meter Box ID qq~ ~ K Factor ~ 6 WO 15418002018 Assumed Actual Meter Box Y Project ID Chemours Moisture ~ Meter Box Del H ( gj ~ Init181 Mid-Point FIn81 ModeSource ID Division Impinger Vol (ml) Probe ID Length H q 4 ~ 6~ Sample Train (ft3) ~ Oo ~ jj ~ Samp Loc ID STK Silica gel (g)

mdash~ Probe Material Boro Leak Check (in Hg) ~

Run NoID 2 CO2 by Vol Pitot Thermocouple ID Pitot leak check good ~ no e no yes np Test Method ID M0010 02 deg by Vol ~ q Pitot Coefficient 084 Pitot Inspection good no e no yes no Date ID S L

NOV2019 Temperature (degF) MeterT m F

~~ Noale ID Method 3 S stem ood Y 9 Yes no yes no yes no ource ovation Diviswn Stack e P ( ) Noale Measurements I b~ ~ 60 ~ (~ Temp Check Pre-Test et Post-Test Set

Sample Date ~ ~ a mdash ( Static Press (in Hz0) mdash~ 3 Avg Noale Dia (in) ( ~ Meter Box Temp Baro Press (in Hg) Q Area of Stack (ft2) Reference Temp Operator Ambient Temp (degF) SQ Sample Time _q~-- `~j PassFail (+- 2deg) Pass Fail Pass Fail

Total Traverse Pts ~ ~ Temp Change Response yes no ves no

bull

mdash~~~~ ~ bull

~~~~--- ~~~

~~mdash~~ ~ r ~ ~~~~~-

1~__2~ 000~5~

Avg Sgrt Delta P Avg Sgrt Del

t-~`~~5 ~~~~~~~

bully bull~ r ~~~~~~~~a~ miuimnn man max vac mnuPnax

~~ flg~ ~1q~1 lo ~-- QOIl2(o g3(tl5 (a~ (v ~I`b~(o0 Comments EPA Method 0010 from EPA SW-846

_ t~~ ~~_~- 30

12120201028 AM 112219 Div Stack MM18

TEST DATA Test run number 1 2 3 Location Division Stack Division Stack Division Stack Test date 112219 112219 12419 Test time period 0826-1022 1139-1318 0955-1125Operator WF WF KS

SAMPLING DATA Duration minutes 84 78 90 Average dry gas meter press in H2O 341 356 500 Average dry gas meter temp deg F 549 6600 5450 Average absolute meter temp deg R 5149 5260 5145 Sample vol at meter cond dcl 143580 147394 159313 Meter box calibration Y 09996 09996 10140 Barometric pressure in Hg 3002 3002 3012 Sample volume dscl (1) 148843 149624 168860 Sample volume dscf (1) 5256 5283 5963

VOLUMETRIC FLOW RATE Avg gas stream volumetric flow dscfmin 33787 28485 31136

(1) Standard conditions = 68 deg F (20 deg C) and 2992 inches Hg (760mm Hg)

CHEMOURS-FAYETTEVILLE NCINPUTS FOR EPA MM18 TARGET COMPOUND CALCULATIONS

DIVISION STACK

32

FIELD DATA SHEET Client Chemours Run No

WO 15418002018 Test Method

Project ID CHEM-F Date

ModeSource ID Division Baro Press (in Hg)

Samp Loc Stack Ambient Temp (degF)

Source Division Stk Operator

Sample Time Comments Initial Probe Leak check

Final Probe Leak check

MM 1 S - HFPO Diener Acid Page ~ of ~ 1 Meter Box ID

Modified M18 Meter Box Y Q G

Nov 2019 Probe IDLength Leak Check (in Hg) (~~~ ~bdquo~~~ I I (~Q (1~~ ~

3Q (~Z Probe Material Pitot leak check good yecLpry yes no y~uc_Law

bull ~

~~- ~~ ~~

~ ~~ ~ --~

------ --

Avg Delta H Total Volume Avg Tm Max Temp Max Vac Max Temp

33

FIELD DATA SHEET Client

W O

Project ID

ModeSource ID

Samp Loc

Source

Comments

Chemours Run No

15418002018 Test Method

CHEM-F Date

Division Baro Press (in Hg)

Stack Ambient Temp (degF)

Division Stk Operator

Sample Time

Initial Probe Leak check Final Probe Leak check

MM 18 - HFPO Dimer Acid 2 Meter Box ID ~0

Modified M18 Meter Box Y G~ ~+ Nov 2019 Probe IDLength Leak Check (in Hg)

~(~ p ~ Probe Material Pitot Teak check good

da W

~~ ~laquo

Page ~ of

pJCH ~~~

yes no yes no

~~~~ r ~~~rl~~~f~r~~~~ ~ ~ ~m~ - ~c~1 ~~~P~~~~i~ ~ ~m~ ~~~c~~~~~l~~~~ ~

m ~ ~_-1

~~bulls~s7xix~~rax a

Hvg ueita n ~ i otai volume

35~ ~ I~1~~ Hvg i m Hoax I emp Max Vac Max Temp

l~ ~

34

~~v S~~-~Ll~

SAMPLE RECOVERY FIELD DATA

Client r~i4 ~`~ WO LocationPlant ~ ~~ bdquomdash r Source ampLocation J I~

Run No Sample Date ~~~~ ~ Recovery Date gt ~

Sample ID ~ ~~(~ Analyst ~ ~ Filter Number

Im in er 1 2 3 4 5 6 7 Im Total 8 Total

Contents Silica Gel

Final ~~ ~~j~zj ~ ~~7i ~ ~

~ `~ 1

Initial ~ G~ ~~ ~ ~ ~~ ~ ~ ~ utJ~ ~d

ca~~ I3 ~- -_~ i ImpingerColor ~A~ j~=~~ Labeled

mdash~ Silica Gel Condition Sealed

Run No ~ Sample Date ~ ~~ Recovery Date ~~~

Sample ID Analyst Filter Number ~~

Im in er 1 2 3 4 5 6 7 ImpTotai 8 Total

Contents Silica Gel

Final ~~r ~ 1o~i(~ ~0~ ~ ~Os

Initial ~ rs b~~~~ ~~~ ~~ Q ~~ f

Gain ~s d d

Impinger Color ~j ( ~ Labeled

Silica Gel Condition Sealed

Run No lf~ Sample Dated ~ ~ Recovery Date ~~ tmdash

Sample ID ~ Analyst Filter Number

Im in er 1 2 3 4 5 6 7 ImpTotal 8 Total

Contents Silica Gel

Final ~ t ~~r ~ b s ~ ~ 0 ~1 ~~~ b~

initial ~ ~ = ~ v b ~~gt ~ ~ ~~ - ~j

Gain ~ 4 ~G(~j~ ~ Impinger Color -~ ~ La~ed

Silica Gel Condition Sealed

Check COC for Sample IDs of Media Blanks ~ ~~

~

~~

35

FIELD DATA SHEET MM 18 Client Chemours Run No 1 Meter Box ID

WO 15418002018 Test Method Modified M18 Meter Box Y D I~

Project ID CHEM-F Date ~I Dec 2019 Probe IDLength Leak Check (in Hg)

ModeSource ID VE NoRh Baro Press (in Hg) 3~~ Probe Mate~ai Pitot leak check good Samp Loc Stack Ambient Temp (degF) O

Source Division Operator f

Sample Time ~~ M~

Comments Initial Probe Leak check ~~ a ~~pi~

Final Probe Leak check ~~i y ~r~~~p

Page ~ of

yes no yes no yes no

a~ ~a~~~ o~r~~~~

~~~ ~~~~a~ ~~~ ~

~~~~ I ~~ ~~ ~ ~ ~~~~~~~~~ ~~~~em~~

--- -- ~~-

--~ -- ~~-~ Avg Delta HJ Total Volume Avg Tm MaxTemp Max Vac Max Temp

36

SAMPLE RECOVERY FIELD DATA

Client ~ ~ lam C~1` s WO l~ 4 l~ gt~ti~- =~~ ~vi LocatioNPlant r-c~ t~ Source ampLocation ~ C JV~3c- mdash ~ y~~ ~~ 5

Run No 3 Sample Date Iz-~ ~-1 mdash j ~ Recovery Date ~~9

Sample ID Analyst Filter Number i l~ Im in er

1 2 3 4 5 6 7 Im Total 8 Total Contents Silica Gel

Final 4 ~ ~ G~ U ~O ~ ~ C1 ~~ 3 ~ _

Initial ~ ~ ~ C1~ bull ~- L ~c3~-~j ~ 13~

Gain C~ ~ d + t ~ ~ ~L O ~ ~ ~ v r C7 r

Impinger Color ______~~ Labeled r

Silica Gel Condition +~U Sealed

Run No Sample Date Recovery Date

Sample ID Analyst Filter Number

Im in er 1 2 3 4 5 6 7 ImpTotal 8 Total

Contents ~ Silica Gel

Final

Initial ~~~ ~~0 607` ~C~ ~~ ~~ ~ f3 ~3

Gain

Impinger Color Labeled

Silica Gel Condition Sealed

Run No Sample Date Recovery Date

Sample ID Analyst Filter Number

Im in er 1 2 3 4 5 6 7 ImpTotal 8 Total

Contents Silica Gel

Final

Initial

Gain

Impinger Color Labeled

Silica Gel Condition Sealed

Check COC for Sample IDs of Media Blanks ~`

k3aT~AF c

37

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

APPENDIX C LABORATORY ANALYTICAL REPORT

38

ANALYTICAL REPORTJob Number 140-17458-1

Job Description VEN Stack - M0010

Contract Number LBIO-67048

ForChemours Company FC LLC The

co AECOMSabre Building Suite 300

4051 Ogletown RoadNewark DE 19713

Attention Michael Aucoin

_____________________________________________

Approved for releaseCourtney M AdkinsProject Manager II12102019 307 PM

Courtney M Adkins Project Manager II5815 Middlebrook Pike Knoxville TN 37921

(865)291-3000courtneyadkinstestamericainccom

12102019

This report may not be reproduced except in full and with written approval from the laboratory For questions please contact the Project Manager atthe e-mail address or telephone number listed on this page

The test results in this report relate only to the samples as received by the laboratory and will meet all requirements of the methodology with anyexceptions noted This report shall not be reproduced except in full without the express written approval of the laboratory All questions should bedirected to the Eurofins TestAmerica Project Manager

This report has been electronically signed and authorized by the signatory Electronic signature is intended to be the legally binding equivalent of atraditionally handwritten signature

Eurofins TestAmerica Knoxville

5815 Middlebrook Pike Knoxville TN 37921

Tel (865) 291-3000 Fax (865) 584-4315 wwwtestamericainccom

12102019Page 1 of 21339

Table of ContentsCover Title Page 1

Data Summaries 4

Definitions 4

Method Summary 5

Sample Summary 6

Case Narrative 7

QC Association 9

Client Sample Results 11

Default Detection Limits 13

Surrogate Summary 14

QC Sample Results 15

Chronicle 18

Certification Summary 22

Manual Integration Summary 24

Organic Sample Data 25

LCMS 25

8321A_HFPO_Du 258321A_HFPO_Du QC Summary 268321A_HFPO_Du Sample Data 32Standards Data 40

8321A_HFPO_Du ICAL Data 408321A_HFPO_Du CCAL Data 63

Raw QC Data 758321A_HFPO_Du Tune Data 758321A_HFPO_Du Blank Data 808321A_HFPO_Du LCSLCSD Data 92

12102019Page 2 of 21340

Table of Contents8321A_HFPO_Du Run Logs 1058321A_HFPO_Du Prep Data 107

Method DV-LC-0012 114Method DV-LC-0012 QC Summary 115Method DV-LC-0012 Sample Data 123Standards Data 147

Method DV-LC-0012 CCAL Data 147Raw QC Data 165

Method DV-LC-0012 Tune Data 165Method DV-LC-0012 Blank Data 170Method DV-LC-0012 LCSLCSD Data 182

Method DV-LC-0012 Run Logs 198Method DV-LC-0012 Prep Data 200

Shipping and Receiving Documents 206

Client Chain of Custody 207

12102019Page 3 of 21341

DefinitionsGlossaryJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

Qualifiers

LCMSQualifier Description

LCS or LCSD is outside acceptance limits

Qualifier

B Compound was found in the blank and sample

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

GlossaryThese commonly used abbreviations may or may not be present in this report

curren Listed under the D column to designate that the result is reported on a dry weight basis

Abbreviation

R Percent Recovery

CFL Contains Free Liquid

CNF Contains No Free Liquid

DER Duplicate Error Ratio (normalized absolute difference)

Dil Fac Dilution Factor

DL Detection Limit (DoDDOE)

DL RA RE IN Indicates a Dilution Re-analysis Re-extraction or additional Initial metalsanion analysis of the sample

DLC Decision Level Concentration (Radiochemistry)

EDL Estimated Detection Limit (Dioxin)

LOD Limit of Detection (DoDDOE)

LOQ Limit of Quantitation (DoDDOE)

MDA Minimum Detectable Activity (Radiochemistry)

MDC Minimum Detectable Concentration (Radiochemistry)

MDL Method Detection Limit

ML Minimum Level (Dioxin)

NC Not Calculated

ND Not Detected at the reporting limit (or MDL or EDL if shown)

PQL Practical Quantitation Limit

QC Quality Control

RER Relative Error Ratio (Radiochemistry)

RL Reporting Limit or Requested Limit (Radiochemistry)

RPD Relative Percent Difference a measure of the relative difference between two points

TEF Toxicity Equivalent Factor (Dioxin)

TEQ Toxicity Equivalent Quotient (Dioxin)

Eurofins TestAmerica Knoxville

12102019Page 4 of 21342

Method SummaryJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

Method Method Description LaboratoryProtocol

SW8468321A HFPO-DA TAL DEN

SW8468321A PFOA and PFOS TAL DEN

TAL SOPNone Leaching Procedure TAL DEN

TAL SOPNone Leaching Procedure for Condensate TAL DEN

TAL SOPNone Leaching Procedure for XAD TAL DEN

Protocol References

SW846 = Test Methods For Evaluating Solid Waste PhysicalChemical Methods Third Edition November 1986 And Its Updates

TAL SOP = TestAmerica Laboratories Standard Operating Procedure

Laboratory References

TAL DEN = Eurofins TestAmerica Denver 4955 Yarrow Street Arvada CO 80002 TEL (303)736-0100

Eurofins TestAmerica Knoxville

12102019Page 5 of 21343

Sample SummaryJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

Lab Sample ID Client Sample ID ReceivedCollectedMatrix Asset ID

140-17458-1 G-25772578 DIV VEN STACK R1 M0010 FH Air 112219 0000 112519 0800

140-17458-2 G-257925802582 DIV VEN STACK R1 M0010

BH

Air 112219 0000 112519 0800

140-17458-3 G-2581 DIV VEN STACK R1 M0010 IMPINGERS

12amp3 COND

Air 112219 0000 112519 0800

140-17458-4 G-2583 DIV VEN STACK R1 M0010

BREAKTHROUGH XAD-2 RESIN TUBE

Air 112219 0000 112519 0800

140-17458-5 G-25842585 DIV VEN STACK R2 M0010 FH Air 112219 0000 112519 0800

140-17458-6 G-258625872589 DIV VEN STACK R2 M0010

BH

Air 112219 0000 112519 0800

140-17458-7 G-2588 DIV VEN STACK R2 M0010 IMPINGERS

12amp3 COND

Air 112219 0000 112519 0800

140-17458-8 G-2590 DIV VEN STACK R2 M0010

BREAKTHROUGH XAD-2 RESIN TUBE

Air 112219 0000 112519 0800

Eurofins TestAmerica Knoxville

12102019Page 6 of 21344

Job Narrative140-17458-1

Sample Receipt

The samples were received on November 25 2019 at 800 AM in good condition and properly preserved The temperature of the cooler at receipt was 16ordm C

Quality Control and Data Interpretation

Unless otherwise noted all holding times and QC criteria were met and the test results shown in this report meet all applicable NELAC requirements

Method 0010Method 3542 Sampling Train Preparation

Train fractions were extracted and prepared for analysis in TestAmericarsquos Knoxville laboratory Extracts and condensate samples were forwarded to the Denver laboratory for HFPO-DA analysis All results are reported in ldquoTotal ugrdquo per sample

LCMS

Method 8321A The following samples were inadvertently spiked with a native solution of HFPO-DA rather than the isotope dilution

internal standard prior to extraction in the Knoxville Laboratory

middot DIV VEN Stack R1 FHmiddot DIV VEN Stack R1 BHmiddot DIV VEN R1 Breakthrough middot DIV VEN Stack R2 FHmiddot DIV VEN Stack R2 BHmiddot DIV VEN R2 Breakthrough

As a result these samples received a relatively small fortification of the native HFPO-DA and no labeled IDA as typically applied Upon

discovery of the processing issue the IDAs were post spiked onto the extracted samples which were then re-analyzed to acquire the

Total HFPO-DA content in the samples The spiked amount of native HFPO-DA was subsequently subtracted from the Total HFPO-DA

and the corrected concentration is reported in with the data set below

Please note that under these conditions the affected samples are not corrected for extraction losses through isotope dilution internal

standard data reduction However the HFPO-DA concentrations are accurate and useful for their intended purpose

Method 8321A The laboratory control sample (LCS) and or laboratory control sample duplicate (LCSD) for preparation batch 280-478940 and analytical batch 280-479928 recovered outside control limits for the following analytes HFPO These analytes were biased high in the LCS and were not detected in the associated samples therefore the data have been reported

No additional analytical or quality issues were noted other than those described above or in the DefinitionsGlossary page

Organic Prep

No analytical or quality issues were noted other than those described in the DefinitionsGlossary page

12102019Page 7 of 21345

Chemours VES Carbon Bed Outlet Test Analytical Report TestAmerica Job No 140-17458-1

December 10 2019

OUsers FoldersAdkinsCProject DocumentsSpecial ReportingChemours Corrected ValuesFayettevilleChemours Corrected Results HFPO-DA_DIV VEN Stack_12102019docx Created on 01302018 Last edited on 12102019 302 PM

The following samples were inadvertently spiked with a native solution of HFPO-DA prior to extraction

in the Knoxville laboratory

DIV VEN Stack R1 FH

DIV VEN Stack R1 BH

DIV VEN R1 Breakthrough

DIV VEN Stack R2 FH

DIV VEN Stack R2 BH

DIV VEN R2 Breakthrough

The HFPO-DA results presented below have been corrected to remove the laboratory contribution from the final result

TALS ID Client ID HFPO-DA Result (ugsample)

HFPO-DA Added in the lab

(ugsample)

HFPO-DA Corrected Result

(ugsample)

140-17458-1 DIV VEN Stack R1 FH

986 2 786

140-17458-2 DIV VEN Stack R1 BH

213 7 143

140-17458-4 DIV VEN R1 Breakthrough

230 4 ND

140-17458-5 DIV VEN Stack R2 FH

658 25 408

140-17458-6 DIV VEN Stack R2 BH

363 65 298

140-17458-8 DIV VEN R2 Breakthrough

219 4 ND

12102019Page 8 of 21346

QC Association SummaryJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

LCMS

Analysis Batch 464589

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321ADLCK 280-46458913 Lab Control Sample TotalNA

Prep Batch 478940

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air None140-17458-1 G-25772578 DIV VEN STACK R1 M0010 FH TotalNA

Air None140-17458-5 G-25842585 DIV VEN STACK R2 M0010 FH TotalNA

Air NoneMB 280-47894014-A Method Blank TotalNA

Air NoneMB 280-4789401-A Method Blank TotalNA

Air NoneLCS 280-4789402-A Lab Control Sample TotalNA

Air NoneLCSD 280-4789403-A Lab Control Sample Dup TotalNA

Prep Batch 478993

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air None140-17458-3 G-2581 DIV VEN STACK R1 M0010 IMPINGERS 12amp3 CONDTotalNA

Air None140-17458-7 G-2588 DIV VEN STACK R2 M0010 IMPINGERS 12amp3 CONDTotalNA

Air NoneMB 280-47899314-A Method Blank TotalNA

Air NoneMB 280-4789931-A Method Blank TotalNA

Air NoneLCS 280-4789932-A Lab Control Sample TotalNA

Air NoneLCSD 280-4789933-A Lab Control Sample Dup TotalNA

Prep Batch 479245

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air None140-17458-2 G-257925802582 DIV VEN STACK R1 M0010 BHTotalNA

Air None140-17458-4 G-2583 DIV VEN STACK R1 M0010 BREAKTHROUGH XAD-2 RESIN TUBETotalNA

Air None140-17458-6 G-258625872589 DIV VEN STACK R2 M0010 BHTotalNA

Air None140-17458-8 G-2590 DIV VEN STACK R2 M0010 BREAKTHROUGH XAD-2 RESIN TUBETotalNA

Air NoneMB 280-4792451-A Method Blank TotalNA

Air NoneLCS 280-4792452-A Lab Control Sample TotalNA

Air NoneLCSD 280-4792453-A Lab Control Sample Dup TotalNA

Analysis Batch 479814

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321A 478993140-17458-3 G-2581 DIV VEN STACK R1 M0010 IMPINGERS 12amp3 CONDTotalNA

Air 8321A 478993140-17458-7 G-2588 DIV VEN STACK R2 M0010 IMPINGERS 12amp3 CONDTotalNA

Air 8321A 478993MB 280-47899314-A Method Blank TotalNA

Air 8321A 478993MB 280-4789931-A Method Blank TotalNA

Air 8321A 478993LCS 280-4789932-A Lab Control Sample TotalNA

Air 8321A 478993LCSD 280-4789933-A Lab Control Sample Dup TotalNA

Analysis Batch 479928

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321A 478940140-17458-1 G-25772578 DIV VEN STACK R1 M0010 FH TotalNA

Air 8321A 478940140-17458-5 G-25842585 DIV VEN STACK R2 M0010 FH TotalNA

Air 8321A 478940MB 280-47894014-A Method Blank TotalNA

Air 8321A 478940MB 280-4789401-A Method Blank TotalNA

Air 8321A 478940LCS 280-4789402-A Lab Control Sample TotalNA

Air 8321A 478940LCSD 280-4789403-A Lab Control Sample Dup TotalNA

Analysis Batch 479929

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321A 479245140-17458-2 G-257925802582 DIV VEN STACK R1 M0010 BHTotalNA

Eurofins TestAmerica Knoxville

12102019Page 9 of 21347

QC Association SummaryJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

LCMS (Continued)

Analysis Batch 479929 (Continued)

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321A 479245140-17458-4 G-2583 DIV VEN STACK R1 M0010 BREAKTHROUGH XAD-2 RESIN TUBETotalNA

Air 8321A 479245140-17458-6 G-258625872589 DIV VEN STACK R2 M0010 BHTotalNA

Air 8321A 479245140-17458-8 G-2590 DIV VEN STACK R2 M0010 BREAKTHROUGH XAD-2 RESIN TUBETotalNA

Air 8321A 479245MB 280-4792451-A Method Blank TotalNA

Air 8321A 479245LCS 280-4792452-A Lab Control Sample TotalNA

Air 8321A 479245LCSD 280-4792453-A Lab Control Sample Dup TotalNA

Eurofins TestAmerica Knoxville

12102019Page 10 of 21348

Client Sample ResultsJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

Lab Sample ID 140-17458-1Client Sample ID G-25772578 DIV VEN STACK R1 M0010 FHMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Air Train

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 986 B 0100 00108 ugSample 112719 0804 120819 0915 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 133 50 - 200 112719 0804 120819 0915 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Lab Sample ID 140-17458-2Client Sample ID G-257925802582 DIV VEN STACK R1 M0010 BH

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Air Train

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 213 B 0350 00700 ugSample 120219 1125 120819 0955 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 116 50 - 200 120219 1125 120819 0955 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Lab Sample ID 140-17458-3Client Sample ID G-2581 DIV VEN STACK R1 M0010 IMPINGERS 12amp3 COND

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Air Train

Method 8321A - HFPO-DARL MDL

HFPO-DA 0145 J 0212 00108 ugSample 112719 1236 120619 1241 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 116 50 - 200 112719 1236 120619 1241 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Lab Sample ID 140-17458-4Client Sample ID G-2583 DIV VEN STACK R1 M0010 BREAKTHROUGH XAD-2 RESIN TUBE

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Air Train

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 230 B 0200 00400 ugSample 120219 1125 120819 0958 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 126 50 - 200 120219 1125 120819 0958 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Eurofins TestAmerica Knoxville

12102019Page 11 of 21349

Client Sample ResultsJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

Lab Sample ID 140-17458-5Client Sample ID G-25842585 DIV VEN STACK R2 M0010 FHMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Air Train

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 658 B 0125 00135 ugSample 112719 0804 120819 0919 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 136 50 - 200 112719 0804 120819 0919 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Lab Sample ID 140-17458-6Client Sample ID G-258625872589 DIV VEN STACK R2 M0010 BH

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Air Train

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 363 B 0325 00650 ugSample 120219 1125 120819 1001 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 100 50 - 200 120219 1125 120819 1001 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Lab Sample ID 140-17458-7Client Sample ID G-2588 DIV VEN STACK R2 M0010 IMPINGERS 12amp3 COND

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Air Train

Method 8321A - HFPO-DARL MDL

HFPO-DA ND 0196 000999 ugSample 112719 1236 120619 1244 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 121 50 - 200 112719 1236 120619 1244 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Lab Sample ID 140-17458-8Client Sample ID G-2590 DIV VEN STACK R2 M0010 BREAKTHROUGH XAD-2 RESIN TUBE

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Air Train

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 219 B 0200 00400 ugSample 120219 1125 120819 1004 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 109 50 - 200 120219 1125 120819 1004 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Eurofins TestAmerica Knoxville

12102019Page 12 of 21350

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17458-1ProjectSite VEN Stack - M0010

Method 8321A - HFPO-DAPrep None

000250HFPO-DA ugSample

Analyte UnitsMDLRL

000128

Method 8321A - PFOA and PFOSPrep None

00250HFPO-DA ugSample

Analyte UnitsMDLRL

000270

0100HFPO-DA ugSample00200

Eurofins TestAmerica Knoxville

12102019Page 13 of 21351

ANALYTICAL REPORTJob Number 140-17461-1

Job Description VEN Stack - MM-18

Contract Number LBIO-67048

ForChemours Company FC LLC The

co AECOMSabre Building Suite 300

4051 Ogletown RoadNewark DE 19713

Attention Michael Aucoin

_____________________________________________

Approved for releaseCourtney M AdkinsProject Manager II12232019 300 PM

Courtney M Adkins Project Manager II5815 Middlebrook Pike Knoxville TN 37921

(865)291-3000 courtneyadkinstestamericainccom

12232019

This report may not be reproduced except in full and with written approval from the laboratory For questions please contact the Project Manager atthe e-mail address or telephone number listed on this page

The test results in this report relate only to the samples as received by the laboratory and will meet all requirements of the methodology with anyexceptions noted This report shall not be reproduced except in full without the express written approval of the laboratory All questions should bedirected to the Eurofins TestAmerica Project Manager

This report has been electronically signed and authorized by the signatory Electronic signature is intended to be the legally binding equivalent of atraditionally handwritten signature

Eurofins TestAmerica Knoxville

5815 Middlebrook Pike Knoxville TN 37921

Tel (865) 291-3000 Fax (865) 584-4315 wwwtestamericainccom

12232019Page 1 of 89452

Table of ContentsCover Title Page 1

Data Summaries 5

Definitions 5

Method Summary 6

Sample Summary 7

Case Narrative 8

QC Association 10

Client Sample Results 14

Default Detection Limits 43

Surrogate Summary 45

QC Sample Results 46

Chronicle 54

Certification Summary 63

Manual Integration Summary 64

Organic Sample Data 77

GCMS VOA 77

Method 8260B 77Method 8260B QC Summary 78Method 8260B Sample Data 93Standards Data 287

Method 8260B ICAL Data 287Method 8260B CCAL Data 389

Raw QC Data 437Method 8260B Tune Data 437Method 8260B Blank Data 453Method 8260B LCSLCSD Data 461

12232019Page 2 of 89453

Table of ContentsMethod 8260B MSMSD Data 474

Method 8260B Run Logs 482Method 8260B Prep Data 495

HPLCIC 498

Method 9056 498Method 9056 QC Summary 499Method 9056 Sample Data 502Standards Data 538

Method 9056 ICAL Data 538Method 9056 CCAL Data 565

Raw QC Data 612Method 9056 Blank Data 612Method 9056 LCSLCSD Data 638Method 9056 MSMSD Data 644

Method 9056 Run Logs 650Method 9056 Prep Data 664

Method 9056A Total Halogens 667Method 9056A Total Halogens QC Summary 668Method 9056A Total Halogens Sample Data 676Standards Data 715

Method 9056A Total Halogens ICAL Data 715Method 9056A Total Halogens CCAL Data 740

Raw QC Data 781Method 9056A Total Halogens Blank Data 781Method 9056A Total Halogens LCSLCSD Data 817Method 9056A Total Halogens MSMSD Data 831

12232019Page 3 of 89454

Table of ContentsMethod 9056A Total Halogens Run Logs 839Method 9056A Total Halogens Prep Data 855

Inorganic Sample Data 864

General Chemistry Data 864

Gen Chem Cover Page 865

Gen Chem Sample Data 866

Gen Chem QC Data 878Gen Chem ICVCCV 878Gen Chem Duplicates 879

Gen Chem MDL 880

Gen Chem Analysis Run Log 881

Gen Chem Prep Data 882

Gen Chem Raw Data 884

Shipping and Receiving Documents 886

Client Chain of Custody 887

12232019Page 4 of 89455

DefinitionsGlossaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Qualifiers

GCMS VOAQualifier Description

LCS or LCSD is outside acceptance limits

Qualifier

H Sample was prepped or analyzed beyond the specified holding time

GCMS VOA TICsQualifier Description

H Sample was prepped or analyzed beyond the specified holding time

Qualifier

J Indicates an Estimated Value for TICs

N Presumptive evidence of material

T Result is a tentatively identified compound (TIC) and an estimated value

HPLCICQualifier Description

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

Qualifier

General ChemistryQualifier Description

HF Field parameter with a holding time of 15 minutes Test performed by laboratory at clients request

Qualifier

GlossaryThese commonly used abbreviations may or may not be present in this report

curren Listed under the D column to designate that the result is reported on a dry weight basis

Abbreviation

R Percent Recovery

CFL Contains Free Liquid

CNF Contains No Free Liquid

DER Duplicate Error Ratio (normalized absolute difference)

Dil Fac Dilution Factor

DL Detection Limit (DoDDOE)

DL RA RE IN Indicates a Dilution Re-analysis Re-extraction or additional Initial metalsanion analysis of the sample

DLC Decision Level Concentration (Radiochemistry)

EDL Estimated Detection Limit (Dioxin)

LOD Limit of Detection (DoDDOE)

LOQ Limit of Quantitation (DoDDOE)

MDA Minimum Detectable Activity (Radiochemistry)

MDC Minimum Detectable Concentration (Radiochemistry)

MDL Method Detection Limit

ML Minimum Level (Dioxin)

NC Not Calculated

ND Not Detected at the reporting limit (or MDL or EDL if shown)

PQL Practical Quantitation Limit

QC Quality Control

RER Relative Error Ratio (Radiochemistry)

RL Reporting Limit or Requested Limit (Radiochemistry)

RPD Relative Percent Difference a measure of the relative difference between two points

TEF Toxicity Equivalent Factor (Dioxin)

TEQ Toxicity Equivalent Quotient (Dioxin)

Eurofins TestAmerica Knoxville

12232019Page 5 of 89456

Method SummaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Method Method Description LaboratoryProtocol

SW8468260B Volatile Organic Compounds (GCMS) TAL KNX

SW8469056 Anions Ion Chromatography TAL KNX

SW8469041A pH TAL KNX

SW8465050 Bomb Preparation Method for Solid Waste TAL KNX

NoneMeOH Prep Methanol Impinger Preparation TAL KNX

Protocol References

None = None

SW846 = Test Methods For Evaluating Solid Waste PhysicalChemical Methods Third Edition November 1986 And Its Updates

Laboratory References

TAL KNX = Eurofins TestAmerica Knoxville 5815 Middlebrook Pike Knoxville TN 37921 TEL (865)291-3000

Eurofins TestAmerica Knoxville

12232019Page 6 of 89457

Sample SummaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID Client Sample ID ReceivedCollectedMatrix Asset ID

140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 Air 112219 0000 112519 0800

140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 Air 112219 0000 112519 0800

140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 Air 112219 0000 112519 0800

140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 Air 112219 0000 112519 0800

140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 Air 112219 0000 112519 0800

140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 Air 112219 0000 112519 0800

140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 Air 112219 0000 112519 0800

140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 Air 112219 0000 112519 0800

140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 Air 112219 0000 112519 0800

140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 Air 112219 0000 112519 0800

140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 Air 112219 0000 112519 0800

140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 Air 112219 0000 112519 0800

Eurofins TestAmerica Knoxville

12232019Page 7 of 89458

Job Narrative140-17461-1

Sample Receipt

The samples were received on November 25 2019 at 800 AM in good condition and properly preserved The temperature of the cooler at receipt was 16ordm C

GCMS VOA

Impinger Sample Preparation and Analysis Impinger samples were analyzed for the volatile organic target analytes by purge and trap GCMS using Eurofins TestAmerica Knoxville standard operating procedure KNOX-MS-0015 based on the following method

middot SW-846 8260B ldquoVolatile Organic Compounds by Gas Chromatography Mass Spectrometry (GCMS)rdquo

Each sample is prepared by adding a known amount of sample to the purge water in a purge and trap vessel and spiking with internal standards surrogates and matrix spike analytes (as needed) Volatile compounds are introduced into the gas chromatograph by the purge and trap method The components are separated using the chromatograph and detected using a mass spectrometer which provides both qualitative and quantitative information

Impinger sample results were calculated using the following equation

Concentration μgsample = (C times DF times W times Vt) (Va)WhereC = On-column concentration μgLDF = Dilution factorW = Volume of water purged LVt = Methanol extract final volume μL Va = Volume of extract analyzed microL

Method 8260B The LCS (LCS 140-357061-A) for analytical batch 140-35903 recovered below marginal exceedance limits for Trichlorofluoromethane This is an ongoing instrument issue with LCS recoveries for this analyte The project manager approved moving forward with analysis for the current job

Method 8260B The following samples were analyzed outside of analytical holding time due to ongoing instrumentation problems Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 (140-17461-9) Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 (140-17461-10) Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 (140-17461-11) and Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 (140-17461-12)

No additional analytical or quality issues were noted other than those described above or in the DefinitionsGlossary page

Total Halogens The samples were prepared for total fluorine chlorine bromine andor iodine using SOP number KNOX-WC-0016 (based on ASTM Method E442 and SW-846 Method 5050) The sample is oxidized by combustion in an oxygen flask at atmospheric pressure or a bomb containing oxygen under pressure The liberated halogen compounds are absorbed primarily as halides in a sodium carbonatesodium bicarbonate buffer solution The combustion products are collected by repeated rinsing of the combustion apparatus and analyzed by ion chromatography in accordance with SOP KNOX-WC-0005 (based on SW-846 Method 9056) The results are calculated using the following equation

C = [(Ccom times Vcom) W] times 1000 gKg

WhereC = Concentration of analyte in the sample mgKgCcom = Concentration of analyte in the combustate mgLVcom = Total volume of combustate LW = Weight of sample combusted g

Anions in Impinger Solutions Anions are is determined in accordance to SOP KNOX-WC-0005 (based on methods 3000A and 9056) The samples were diluted a minimum of 120 in ion chromatography solvent buffer solution to reduce the methanol concentration before injection Buffer concentrate was added until the pH was 10 Samples are diluted with ion chromatography eluate solution to bring the concentrations within the calibration range when necessary Higher dilutions are applied as necessary

An aliquot of prepared sample is introduced into the ion chromatograph Anions are identified based on their retention times as compared to those of known standards Quantification is accomplished by measuring the peak response and comparing it to a calibration curve generated from known standards

12232019Page 8 of 89459

The pH of all samples were tested with pH paper QC consisted of initial CCV and LCS which also serve as initial calibration duplicate analysis for every 10 samples and closing CCV A certified thermometer was used to check the ambient temperature

12232019Page 9 of 89460

QC Association SummaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

GCMS VOA

Prep Batch 35706

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air MeOH Prep140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air MeOH Prep140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air MeOH Prep140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH Prep140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air MeOH Prep140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air MeOH Prep140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air MeOH Prep140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH PrepMB 140-357062-A Method Blank TotalNA

Air MeOH PrepLCS 140-357061-A Lab Control Sample TotalNA

Air MeOH Prep140-17461-8 MS Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17461-8 MSD Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Analysis Batch 35903

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8260B 35706140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 8260B 35706140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 8260B 35706140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 8260B 35706140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 8260B 35706140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 8260B 35706140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 8260B 35706140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 8260B 35706140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 8260B 35706140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 8260B 35706140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 8260B 35706140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 8260B 35706140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 8260B 35706MB 140-357062-A Method Blank TotalNA

Air 8260B 35706LCS 140-357061-A Lab Control Sample TotalNA

Air 8260B 35706LCS 140-357061-A Lab Control Sample TotalNA

Air 8260B 35706140-17461-8 MS Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 8260B 35706140-17461-8 MSD Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

HPLCIC

Prep Batch 35705

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH PrepMB 140-3570514-B Method Blank TotalNA

Air MeOH PrepLCS 140-3570515-B Lab Control Sample TotalNA

Air MeOH PrepLCSD 140-3570516-B Lab Control Sample Dup TotalNA

Prep Batch 35706

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air MeOH Prep140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Eurofins TestAmerica Knoxville

12232019Page 10 of 89461

QC Association SummaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

HPLCIC (Continued)

Prep Batch 35706 (Continued)

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air MeOH Prep140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH Prep140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air MeOH Prep140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air MeOH Prep140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air MeOH Prep140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH PrepMB 140-3570617-A Method Blank TotalNA

Air MeOH PrepLCS 140-3570618-A Lab Control Sample TotalNA

Air MeOH PrepLCSD 140-3570619-A Lab Control Sample Dup TotalNA

Air MeOH Prep140-17461-8 MS Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17461-8 MSD Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Prep Batch 35707

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH PrepMB 140-3570717-B Method Blank TotalNA

Air MeOH PrepLCS 140-3570718-B Lab Control Sample TotalNA

Air MeOH PrepLCSD 140-3570719-B Lab Control Sample Dup TotalNA

Prep Batch 35761

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 5050 35706140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 5050 35706140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 5050 35706140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 5050 35706140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 5050 35706140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 5050 35706140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 5050 35706140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 5050 35707MB 140-3570717-B Method Blank TotalNA

Air 5050 35707LCS 140-3570718-B Lab Control Sample TotalNA

Air 5050 35707LCSD 140-3570719-B Lab Control Sample Dup TotalNA

Prep Batch 35762

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 5050 35706140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 5050 35706140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 5050 35706140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 5050 35706140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 5050 35706140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 5050 35705MB 140-3570514-B Method Blank TotalNA

Air 5050 35705LCS 140-3570515-B Lab Control Sample TotalNA

Air 5050 35705LCSD 140-3570516-B Lab Control Sample Dup TotalNA

Air 5050 35706140-17461-8 MS Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 5050 35706140-17461-8 MSD Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Analysis Batch 36005

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35761140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9056 35761140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35761140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Eurofins TestAmerica Knoxville

12232019Page 11 of 89462

QC Association SummaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

HPLCIC (Continued)

Analysis Batch 36005 (Continued)

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35761140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9056 35761140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9056 35761140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9056 35761140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9056 35761MB 140-3570717-B Method Blank TotalNA

Air 9056 35761LCS 140-3570718-B Lab Control Sample TotalNA

Air 9056 35761LCSD 140-3570719-B Lab Control Sample Dup TotalNA

Analysis Batch 36121

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35762140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35762140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9056 35762140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9056 35762140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9056 35762140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9056 35762MB 140-3570514-B Method Blank TotalNA

Air 9056 35762LCS 140-3570515-B Lab Control Sample TotalNA

Air 9056 35762LCSD 140-3570516-B Lab Control Sample Dup TotalNA

Air 9056 35762140-17461-8 MS Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35762140-17461-8 MSD Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Analysis Batch 36210

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35706140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9056 35706140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35706140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9056 35706140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9056 35706140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9056 35706140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9056 35706140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9056 35706140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35706140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9056 35706140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9056 35706140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9056 35706140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9056 35706MB 140-3570617-A Method Blank TotalNA

Air 9056 35706LCS 140-3570618-A Lab Control Sample TotalNA

Air 9056 35706LCSD 140-3570619-A Lab Control Sample Dup TotalNA

Air 9056 35706140-17461-8 MS Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35706140-17461-8 MSD Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

General Chemistry

Analysis Batch 36086

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9041A140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9041A140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9041A140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9041A140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9041A140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9041A140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Eurofins TestAmerica Knoxville

12232019Page 12 of 89463

QC Association SummaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

General Chemistry (Continued)

Analysis Batch 36086 (Continued)

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9041A140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9041A140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9041A140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9041A140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9041A140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9041A140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9041ALCS 140-360862 Lab Control Sample TotalNA

Air 9041A140-17461-1 DU Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9041A140-17461-2 DU Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9041A140-17461-3 DU Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Eurofins TestAmerica Knoxville

12232019Page 13 of 89464

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-1Client Sample ID Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 426 562 ugSample 112919 1048 120619 2054 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

852 852 ugSample 112919 1048 120619 2054 111133-Pentafluorobutane ND

426 613 ugSample 112919 1048 120619 2054 1111-Trichloroethane ND

852 169 ugSample 112919 1048 120619 2054 1111-Trifluoro-22-dichloroethane ND

852 852 ugSample 112919 1048 120619 2054 1111-Trifluoroethane ND

426 818 ugSample 112919 1048 120619 2054 11122-Tetrachloroethane ND

852 477 ugSample 112919 1048 120619 2054 1112-Trichloro-122-trifluoroethane ND

852 852 ugSample 112919 1048 120619 2054 1112-trichloro-1-fluoroethane ND

426 443 ugSample 112919 1048 120619 2054 1112-Trichloroethane ND

852 426 ugSample 112919 1048 120619 2054 111-Dichloro-1-fluoroethane ND

852 852 ugSample 112919 1048 120619 2054 111-dichloro-22-difluoroethane ND

852 852 ugSample 112919 1048 120619 2054 111-dichloro-22-difluoroethene ND

426 511 ugSample 112919 1048 120619 2054 111-Dichloroethane ND

426 630 ugSample 112919 1048 120619 2054 111-Dichloroethene ND

426 460 ugSample 112919 1048 120619 2054 111-Dichloropropene ND

852 852 ugSample 112919 1048 120619 2054 111-Difluoroethene ND

852 852 ugSample 112919 1048 120619 2054 1122-trichloro-11-difluoroethane ND

426 136 ugSample 112919 1048 120619 2054 1123-Trichlorobenzene ND

426 106 ugSample 112919 1048 120619 2054 1123-Trichloropropane ND

426 143 ugSample 112919 1048 120619 2054 1124-Trichlorobenzene ND

426 886 ugSample 112919 1048 120619 2054 1124-Trimethylbenzene ND

852 150 ugSample 112919 1048 120619 2054 112-Dibromo-3-Chloropropane ND

426 562 ugSample 112919 1048 120619 2054 112-Dibromoethane (EDB) ND

852 852 ugSample 112919 1048 120619 2054 112-dichloro-11-difluoroethane ND

426 749 ugSample 112919 1048 120619 2054 112-Dichlorobenzene ND

426 715 ugSample 112919 1048 120619 2054 112-Dichloroethane ND

426 426 ugSample 112919 1048 120619 2054 112-Dichloropropane ND

426 886 ugSample 112919 1048 120619 2054 1135-Trimethylbenzene ND

426 732 ugSample 112919 1048 120619 2054 113-Dichlorobenzene ND

426 477 ugSample 112919 1048 120619 2054 113-Dichloropropane ND

426 852 ugSample 112919 1048 120619 2054 114-Dichlorobenzene ND

852 869 ugSample 112919 1048 120619 2054 11-Chloro-11-difluoroethane ND

852 852 ugSample 112919 1048 120619 2054 122-dichloro-11-difluoroethylmethyl

ether

ND

426 124 ugSample 112919 1048 120619 2054 122-Dichloropropane ND

170 273 ugSample 112919 1048 120619 2054 12-Butanone (MEK) ND

852 126 ugSample 112919 1048 120619 2054 12-chloro-111444-hexafluoro-2-but

ene

ND

852 852 ugSample 112919 1048 120619 2054 12-Chloro-111-Trifluoroethane ND

426 801 ugSample 112919 1048 120619 2054 12-Chlorotoluene ND

170 392 ugSample 112919 1048 120619 2054 12-Hexanone ND

372 372 ugSample 112919 1048 120619 2054 12-MTP as HFPO 820

426 886 ugSample 112919 1048 120619 2054 14-Chlorotoluene ND

426 114 ugSample 112919 1048 120619 2054 14-Isopropyltoluene ND

170 273 ugSample 112919 1048 120619 2054 14-Methyl-2-pentanone (MIBK) ND

170 101 ugSample 112919 1048 120619 2054 1Acetone ND

426 818 ugSample 112919 1048 120619 2054 1Benzene ND

426 596 ugSample 112919 1048 120619 2054 1Bromobenzene ND

Eurofins TestAmerica Knoxville

12232019Page 14 of 89465

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-1Client Sample ID Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromochloromethane ND 426 954 ugSample 112919 1048 120619 2054 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

426 732 ugSample 112919 1048 120619 2054 1Bromodichloromethane ND

426 129 ugSample 112919 1048 120619 2054 1Bromoform ND

852 494 ugSample 112919 1048 120619 2054 1Bromomethane ND

426 106 ugSample 112919 1048 120619 2054 1Carbon disulfide ND

426 562 ugSample 112919 1048 120619 2054 1Carbon tetrachloride ND

125 125 ugSample 112919 1048 120619 2054 1Carbonyl Difluoride ND

426 613 ugSample 112919 1048 120619 2054 1Chlorobenzene ND

426 920 ugSample 112919 1048 120619 2054 1Chlorodibromomethane ND

852 187 ugSample 112919 1048 120619 2054 1Chloroethane ND

426 494 ugSample 112919 1048 120619 2054 1Chloroform ND

852 354 ugSample 112919 1048 120619 2054 1Chloromethane ND

426 341 ugSample 112919 1048 120619 2054 1cis-12-Dichloroethene ND

426 732 ugSample 112919 1048 120619 2054 1cis-13-Dichloropropene ND

426 409 ugSample 112919 1048 120619 2054 1Dibromomethane ND

852 150 ugSample 112919 1048 120619 2054 1Dichlorodifluoromethane ND

426 698 ugSample 112919 1048 120619 2054 1Ethylbenzene ND

426 426 ugSample 112919 1048 120619 2054 1Heptafluoropropyl 1222-tetrafluoroethyl ether

111

426 112 ugSample 112919 1048 120619 2054 1Hexachlorobutadiene ND

409 409 ugSample 112919 1048 120619 2054 1HFPO dimer methyl ester as

HFPO-DA

ND

426 596 ugSample 112919 1048 120619 2054 1Isopropylbenzene ND

852 698 ugSample 112919 1048 120619 2054 1mp-Xylene ND

426 273 ugSample 112919 1048 120619 2054 1Methylene Chloride 687

426 204 ugSample 112919 1048 120619 2054 1Naphthalene ND

426 109 ugSample 112919 1048 120619 2054 1n-Butylbenzene ND

426 920 ugSample 112919 1048 120619 2054 1n-Propylbenzene ND

426 443 ugSample 112919 1048 120619 2054 1o-Xylene ND

426 835 ugSample 112919 1048 120619 2054 1sec-Butylbenzene ND

426 920 ugSample 112919 1048 120619 2054 1Styrene ND

426 749 ugSample 112919 1048 120619 2054 1tert-Butylbenzene ND

426 562 ugSample 112919 1048 120619 2054 1Tetrachloroethene ND

426 784 ugSample 112919 1048 120619 2054 1Toluene ND

426 443 ugSample 112919 1048 120619 2054 1trans-12-Dichloroethene ND

426 150 ugSample 112919 1048 120619 2054 1trans-13-Dichloropropene ND

426 307 ugSample 112919 1048 120619 2054 1Trichloroethene ND

852 818 ugSample 112919 1048 120619 2054 1Trichlorofluoromethane ND

852 204 ugSample 112919 1048 120619 2054 1Vinyl chloride ND

Butanoic acid heptafluoro- sodium

salt

437 T J N ugSample 113 2218-54-4 112919 1048 120619 2054 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2054112919 1048T JUnknown 489 ugSample 118

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1048 120619 2054 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 110 112919 1048 120619 2054 157 - 152

Eurofins TestAmerica Knoxville

12232019Page 15 of 89466

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-1Client Sample ID Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)

Dibromofluoromethane (Surr) 104 62 - 134 112919 1048 120619 2054 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Toluene-d8 (Surr) 97 112919 1048 120619 2054 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine ND 9080 4540 ugSample 112919 1048 121119 2121 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

3750 1700 ugSample 112919 1048 121719 1902 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-2Client Sample ID Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 461 608 ugSample 112919 1048 120619 2119 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

922 922 ugSample 112919 1048 120619 2119 111133-Pentafluorobutane ND

461 664 ugSample 112919 1048 120619 2119 1111-Trichloroethane ND

922 182 ugSample 112919 1048 120619 2119 1111-Trifluoro-22-dichloroethane ND

922 922 ugSample 112919 1048 120619 2119 1111-Trifluoroethane ND

461 885 ugSample 112919 1048 120619 2119 11122-Tetrachloroethane ND

922 516 ugSample 112919 1048 120619 2119 1112-Trichloro-122-trifluoroethane ND

922 922 ugSample 112919 1048 120619 2119 1112-trichloro-1-fluoroethane ND

461 479 ugSample 112919 1048 120619 2119 1112-Trichloroethane ND

922 461 ugSample 112919 1048 120619 2119 111-Dichloro-1-fluoroethane ND

922 922 ugSample 112919 1048 120619 2119 111-dichloro-22-difluoroethane ND

922 922 ugSample 112919 1048 120619 2119 111-dichloro-22-difluoroethene ND

461 553 ugSample 112919 1048 120619 2119 111-Dichloroethane ND

461 682 ugSample 112919 1048 120619 2119 111-Dichloroethene ND

461 498 ugSample 112919 1048 120619 2119 111-Dichloropropene ND

922 922 ugSample 112919 1048 120619 2119 111-Difluoroethene ND

922 922 ugSample 112919 1048 120619 2119 1122-trichloro-11-difluoroethane ND

461 147 ugSample 112919 1048 120619 2119 1123-Trichlorobenzene ND

461 114 ugSample 112919 1048 120619 2119 1123-Trichloropropane ND

461 155 ugSample 112919 1048 120619 2119 1124-Trichlorobenzene ND

461 959 ugSample 112919 1048 120619 2119 1124-Trimethylbenzene ND

922 162 ugSample 112919 1048 120619 2119 112-Dibromo-3-Chloropropane ND

461 608 ugSample 112919 1048 120619 2119 112-Dibromoethane (EDB) ND

922 922 ugSample 112919 1048 120619 2119 112-dichloro-11-difluoroethane ND

461 811 ugSample 112919 1048 120619 2119 112-Dichlorobenzene ND

461 774 ugSample 112919 1048 120619 2119 112-Dichloroethane ND

461 461 ugSample 112919 1048 120619 2119 112-Dichloropropane ND

Eurofins TestAmerica Knoxville

12232019Page 16 of 89467

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-2Client Sample ID Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

135-Trimethylbenzene ND 461 959 ugSample 112919 1048 120619 2119 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

461 793 ugSample 112919 1048 120619 2119 113-Dichlorobenzene ND

461 516 ugSample 112919 1048 120619 2119 113-Dichloropropane ND

461 922 ugSample 112919 1048 120619 2119 114-Dichlorobenzene ND

922 940 ugSample 112919 1048 120619 2119 11-Chloro-11-difluoroethane ND

922 922 ugSample 112919 1048 120619 2119 122-dichloro-11-difluoroethylmethyl

ether

ND

461 135 ugSample 112919 1048 120619 2119 122-Dichloropropane ND

184 295 ugSample 112919 1048 120619 2119 12-Butanone (MEK) ND

922 136 ugSample 112919 1048 120619 2119 12-chloro-111444-hexafluoro-2-but

ene

ND

922 922 ugSample 112919 1048 120619 2119 12-Chloro-111-Trifluoroethane ND

461 866 ugSample 112919 1048 120619 2119 12-Chlorotoluene ND

184 424 ugSample 112919 1048 120619 2119 12-Hexanone ND

403 403 ugSample 112919 1048 120619 2119 12-MTP as HFPO 819

461 959 ugSample 112919 1048 120619 2119 14-Chlorotoluene ND

461 124 ugSample 112919 1048 120619 2119 14-Isopropyltoluene ND

184 295 ugSample 112919 1048 120619 2119 14-Methyl-2-pentanone (MIBK) ND

184 109 ugSample 112919 1048 120619 2119 1Acetone ND

461 885 ugSample 112919 1048 120619 2119 1Benzene ND

461 645 ugSample 112919 1048 120619 2119 1Bromobenzene ND

461 103 ugSample 112919 1048 120619 2119 1Bromochloromethane ND

461 793 ugSample 112919 1048 120619 2119 1Bromodichloromethane ND

461 140 ugSample 112919 1048 120619 2119 1Bromoform ND

922 535 ugSample 112919 1048 120619 2119 1Bromomethane ND

461 114 ugSample 112919 1048 120619 2119 1Carbon disulfide ND

461 608 ugSample 112919 1048 120619 2119 1Carbon tetrachloride ND

135 135 ugSample 112919 1048 120619 2119 1Carbonyl Difluoride ND

461 664 ugSample 112919 1048 120619 2119 1Chlorobenzene ND

461 995 ugSample 112919 1048 120619 2119 1Chlorodibromomethane ND

922 203 ugSample 112919 1048 120619 2119 1Chloroethane ND

461 535 ugSample 112919 1048 120619 2119 1Chloroform ND

922 383 ugSample 112919 1048 120619 2119 1Chloromethane ND

461 369 ugSample 112919 1048 120619 2119 1cis-12-Dichloroethene ND

461 793 ugSample 112919 1048 120619 2119 1cis-13-Dichloropropene ND

461 442 ugSample 112919 1048 120619 2119 1Dibromomethane ND

922 162 ugSample 112919 1048 120619 2119 1Dichlorodifluoromethane ND

461 756 ugSample 112919 1048 120619 2119 1Ethylbenzene ND

461 461 ugSample 112919 1048 120619 2119 1Heptafluoropropyl 1222-tetrafluoroethyl ether

161

461 122 ugSample 112919 1048 120619 2119 1Hexachlorobutadiene ND

442 442 ugSample 112919 1048 120619 2119 1HFPO dimer methyl ester as

HFPO-DA

ND

461 645 ugSample 112919 1048 120619 2119 1Isopropylbenzene ND

922 756 ugSample 112919 1048 120619 2119 1mp-Xylene ND

461 295 ugSample 112919 1048 120619 2119 1Methylene Chloride 568

461 221 ugSample 112919 1048 120619 2119 1Naphthalene ND

461 118 ugSample 112919 1048 120619 2119 1n-Butylbenzene ND

Eurofins TestAmerica Knoxville

12232019Page 17 of 89468

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-2Client Sample ID Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

n-Propylbenzene ND 461 995 ugSample 112919 1048 120619 2119 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

461 479 ugSample 112919 1048 120619 2119 1o-Xylene ND

461 903 ugSample 112919 1048 120619 2119 1sec-Butylbenzene ND

461 995 ugSample 112919 1048 120619 2119 1Styrene ND

461 811 ugSample 112919 1048 120619 2119 1tert-Butylbenzene ND

461 608 ugSample 112919 1048 120619 2119 1Tetrachloroethene ND

461 848 ugSample 112919 1048 120619 2119 1Toluene ND

461 479 ugSample 112919 1048 120619 2119 1trans-12-Dichloroethene ND

461 162 ugSample 112919 1048 120619 2119 1trans-13-Dichloropropene ND

461 332 ugSample 112919 1048 120619 2119 1Trichloroethene ND

922 885 ugSample 112919 1048 120619 2119 1Trichlorofluoromethane ND

922 221 ugSample 112919 1048 120619 2119 1Vinyl chloride ND

Unknown 561 T J ugSample 113 112919 1048 120619 2119 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2119112919 1048T JUnknown 1150 ugSample 118

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1048 120619 2119 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 112919 1048 120619 2119 157 - 152

Dibromofluoromethane (Surr) 104 112919 1048 120619 2119 162 - 134

Toluene-d8 (Surr) 96 112919 1048 120619 2119 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 27900 9830 4920 ugSample 112919 1048 121119 2142 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

4060 1840 ugSample 112919 1048 121719 2006 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-3Client Sample ID Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 858 113 ugSample 112919 1048 120619 2143 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

172 172 ugSample 112919 1048 120619 2143 111133-Pentafluorobutane ND

858 124 ugSample 112919 1048 120619 2143 1111-Trichloroethane ND

172 340 ugSample 112919 1048 120619 2143 1111-Trifluoro-22-dichloroethane ND

172 172 ugSample 112919 1048 120619 2143 1111-Trifluoroethane ND

858 165 ugSample 112919 1048 120619 2143 11122-Tetrachloroethane ND

172 0961 ugSample 112919 1048 120619 2143 1112-Trichloro-122-trifluoroethane ND

172 172 ugSample 112919 1048 120619 2143 1112-trichloro-1-fluoroethane ND

Eurofins TestAmerica Knoxville

12232019Page 18 of 89469

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-3Client Sample ID Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

112-Trichloroethane ND 858 0892 ugSample 112919 1048 120619 2143 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

172 858 ugSample 112919 1048 120619 2143 111-Dichloro-1-fluoroethane ND

172 172 ugSample 112919 1048 120619 2143 111-dichloro-22-difluoroethane ND

172 172 ugSample 112919 1048 120619 2143 111-dichloro-22-difluoroethene ND

858 103 ugSample 112919 1048 120619 2143 111-Dichloroethane ND

858 127 ugSample 112919 1048 120619 2143 111-Dichloroethene ND

858 0926 ugSample 112919 1048 120619 2143 111-Dichloropropene ND

172 172 ugSample 112919 1048 120619 2143 111-Difluoroethene ND

172 172 ugSample 112919 1048 120619 2143 1122-trichloro-11-difluoroethane ND

858 274 ugSample 112919 1048 120619 2143 1123-Trichlorobenzene ND

858 213 ugSample 112919 1048 120619 2143 1123-Trichloropropane ND

858 288 ugSample 112919 1048 120619 2143 1124-Trichlorobenzene ND

858 178 ugSample 112919 1048 120619 2143 1124-Trimethylbenzene ND

172 302 ugSample 112919 1048 120619 2143 112-Dibromo-3-Chloropropane ND

858 113 ugSample 112919 1048 120619 2143 112-Dibromoethane (EDB) ND

172 172 ugSample 112919 1048 120619 2143 112-dichloro-11-difluoroethane ND

858 151 ugSample 112919 1048 120619 2143 112-Dichlorobenzene ND

858 144 ugSample 112919 1048 120619 2143 112-Dichloroethane ND

858 0858 ugSample 112919 1048 120619 2143 112-Dichloropropane ND

858 178 ugSample 112919 1048 120619 2143 1135-Trimethylbenzene ND

858 148 ugSample 112919 1048 120619 2143 113-Dichlorobenzene ND

858 0961 ugSample 112919 1048 120619 2143 113-Dichloropropane ND

858 172 ugSample 112919 1048 120619 2143 114-Dichlorobenzene ND

172 175 ugSample 112919 1048 120619 2143 11-Chloro-11-difluoroethane ND

172 172 ugSample 112919 1048 120619 2143 122-dichloro-11-difluoroethylmethyl

ether

ND

858 250 ugSample 112919 1048 120619 2143 122-Dichloropropane ND

343 549 ugSample 112919 1048 120619 2143 12-Butanone (MEK) ND

172 254 ugSample 112919 1048 120619 2143 12-chloro-111444-hexafluoro-2-but

ene

ND

172 172 ugSample 112919 1048 120619 2143 12-Chloro-111-Trifluoroethane ND

858 161 ugSample 112919 1048 120619 2143 12-Chlorotoluene ND

343 789 ugSample 112919 1048 120619 2143 12-Hexanone ND

749 749 ugSample 112919 1048 120619 2143 12-MTP as HFPO 604

858 178 ugSample 112919 1048 120619 2143 14-Chlorotoluene ND

858 230 ugSample 112919 1048 120619 2143 14-Isopropyltoluene ND

343 549 ugSample 112919 1048 120619 2143 14-Methyl-2-pentanone (MIBK) ND

343 202 ugSample 112919 1048 120619 2143 1Acetone ND

858 165 ugSample 112919 1048 120619 2143 1Benzene ND

858 120 ugSample 112919 1048 120619 2143 1Bromobenzene ND

858 192 ugSample 112919 1048 120619 2143 1Bromochloromethane ND

858 148 ugSample 112919 1048 120619 2143 1Bromodichloromethane ND

858 261 ugSample 112919 1048 120619 2143 1Bromoform ND

172 995 ugSample 112919 1048 120619 2143 1Bromomethane ND

858 213 ugSample 112919 1048 120619 2143 1Carbon disulfide ND

858 113 ugSample 112919 1048 120619 2143 1Carbon tetrachloride ND

251 251 ugSample 112919 1048 120619 2143 1Carbonyl Difluoride ND

858 124 ugSample 112919 1048 120619 2143 1Chlorobenzene ND

Eurofins TestAmerica Knoxville

12232019Page 19 of 89470

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-3Client Sample ID Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Chlorodibromomethane ND 858 185 ugSample 112919 1048 120619 2143 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

172 377 ugSample 112919 1048 120619 2143 1Chloroethane ND

858 0995 ugSample 112919 1048 120619 2143 1Chloroform ND

172 714 ugSample 112919 1048 120619 2143 1Chloromethane ND

858 0686 ugSample 112919 1048 120619 2143 1cis-12-Dichloroethene ND

858 148 ugSample 112919 1048 120619 2143 1cis-13-Dichloropropene ND

858 0823 ugSample 112919 1048 120619 2143 1Dibromomethane ND

172 302 ugSample 112919 1048 120619 2143 1Dichlorodifluoromethane ND

858 141 ugSample 112919 1048 120619 2143 1Ethylbenzene ND

858 858 ugSample 112919 1048 120619 2143 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

858 226 ugSample 112919 1048 120619 2143 1Hexachlorobutadiene ND

823 823 ugSample 112919 1048 120619 2143 1HFPO dimer methyl ester as

HFPO-DA

ND

858 120 ugSample 112919 1048 120619 2143 1Isopropylbenzene ND

172 141 ugSample 112919 1048 120619 2143 1mp-Xylene ND

858 549 ugSample 112919 1048 120619 2143 1Methylene Chloride ND

858 412 ugSample 112919 1048 120619 2143 1Naphthalene ND

858 220 ugSample 112919 1048 120619 2143 1n-Butylbenzene ND

858 185 ugSample 112919 1048 120619 2143 1n-Propylbenzene ND

858 0892 ugSample 112919 1048 120619 2143 1o-Xylene ND

858 168 ugSample 112919 1048 120619 2143 1sec-Butylbenzene ND

858 185 ugSample 112919 1048 120619 2143 1Styrene ND

858 151 ugSample 112919 1048 120619 2143 1tert-Butylbenzene ND

858 113 ugSample 112919 1048 120619 2143 1Tetrachloroethene ND

858 158 ugSample 112919 1048 120619 2143 1Toluene ND

858 0892 ugSample 112919 1048 120619 2143 1trans-12-Dichloroethene ND

858 302 ugSample 112919 1048 120619 2143 1trans-13-Dichloropropene ND

858 0618 ugSample 112919 1048 120619 2143 1Trichloroethene ND

172 165 ugSample 112919 1048 120619 2143 1Trichlorofluoromethane ND

172 412 ugSample 112919 1048 120619 2143 1Vinyl chloride ND

Unknown 201 T J ugSample 113 112919 1048 120619 2143 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2143112919 1048T JUnknown 996 ugSample 118

1120619 2143112919 1048T J NCyclohexane 110-82-7248 ugSample 442

1120619 2143112919 1048T J N1-Dodecene 112-41-4105 ugSample 1207

1120619 2143112919 1048T J NCyclohexane hexyl- 4292-75-5129 ugSample 1269

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1048 120619 2143 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 112919 1048 120619 2143 157 - 152

Dibromofluoromethane (Surr) 102 112919 1048 120619 2143 162 - 134

Toluene-d8 (Surr) 97 112919 1048 120619 2143 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 9710 1830 915 ugSample 112919 1048 121119 2203 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-3Client Sample ID Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 9056 - Anions Ion Chromatography (Continued)RL MDL

Hydrogen Fluoride ND 755 343 ugSample 112919 1048 121719 2029 20

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-4Client Sample ID Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 264 349 ugSample 112919 1048 120619 2208 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

529 529 ugSample 112919 1048 120619 2208 111133-Pentafluorobutane ND

264 381 ugSample 112919 1048 120619 2208 1111-Trichloroethane ND

529 105 ugSample 112919 1048 120619 2208 1111-Trifluoro-22-dichloroethane ND

529 529 ugSample 112919 1048 120619 2208 1111-Trifluoroethane ND

264 508 ugSample 112919 1048 120619 2208 11122-Tetrachloroethane ND

529 296 ugSample 112919 1048 120619 2208 1112-Trichloro-122-trifluoroethane ND

529 529 ugSample 112919 1048 120619 2208 1112-trichloro-1-fluoroethane ND

264 275 ugSample 112919 1048 120619 2208 1112-Trichloroethane ND

529 264 ugSample 112919 1048 120619 2208 111-Dichloro-1-fluoroethane ND

529 529 ugSample 112919 1048 120619 2208 111-dichloro-22-difluoroethane ND

529 529 ugSample 112919 1048 120619 2208 111-dichloro-22-difluoroethene ND

264 317 ugSample 112919 1048 120619 2208 111-Dichloroethane ND

264 391 ugSample 112919 1048 120619 2208 111-Dichloroethene ND

264 286 ugSample 112919 1048 120619 2208 111-Dichloropropene ND

529 529 ugSample 112919 1048 120619 2208 111-Difluoroethene ND

529 529 ugSample 112919 1048 120619 2208 1122-trichloro-11-difluoroethane ND

264 846 ugSample 112919 1048 120619 2208 1123-Trichlorobenzene ND

264 656 ugSample 112919 1048 120619 2208 1123-Trichloropropane ND

264 889 ugSample 112919 1048 120619 2208 1124-Trichlorobenzene ND

264 550 ugSample 112919 1048 120619 2208 1124-Trimethylbenzene ND

529 931 ugSample 112919 1048 120619 2208 112-Dibromo-3-Chloropropane ND

264 349 ugSample 112919 1048 120619 2208 112-Dibromoethane (EDB) ND

529 529 ugSample 112919 1048 120619 2208 112-dichloro-11-difluoroethane ND

264 465 ugSample 112919 1048 120619 2208 112-Dichlorobenzene ND

264 444 ugSample 112919 1048 120619 2208 112-Dichloroethane ND

264 264 ugSample 112919 1048 120619 2208 112-Dichloropropane ND

264 550 ugSample 112919 1048 120619 2208 1135-Trimethylbenzene ND

264 455 ugSample 112919 1048 120619 2208 113-Dichlorobenzene ND

264 296 ugSample 112919 1048 120619 2208 113-Dichloropropane ND

264 529 ugSample 112919 1048 120619 2208 114-Dichlorobenzene ND

529 539 ugSample 112919 1048 120619 2208 11-Chloro-11-difluoroethane ND

529 529 ugSample 112919 1048 120619 2208 122-dichloro-11-difluoroethylmethyl

ether

ND

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-4Client Sample ID Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

22-Dichloropropane ND 264 772 ugSample 112919 1048 120619 2208 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

106 169 ugSample 112919 1048 120619 2208 12-Butanone (MEK) ND

529 783 ugSample 112919 1048 120619 2208 12-chloro-111444-hexafluoro-2-but

ene

ND

529 529 ugSample 112919 1048 120619 2208 12-Chloro-111-Trifluoroethane ND

264 497 ugSample 112919 1048 120619 2208 12-Chlorotoluene ND

106 243 ugSample 112919 1048 120619 2208 12-Hexanone ND

231 231 ugSample 112919 1048 120619 2208 12-MTP as HFPO 636

264 550 ugSample 112919 1048 120619 2208 14-Chlorotoluene ND

264 709 ugSample 112919 1048 120619 2208 14-Isopropyltoluene ND

106 169 ugSample 112919 1048 120619 2208 14-Methyl-2-pentanone (MIBK) ND

106 624 ugSample 112919 1048 120619 2208 1Acetone ND

264 508 ugSample 112919 1048 120619 2208 1Benzene ND

264 370 ugSample 112919 1048 120619 2208 1Bromobenzene ND

264 592 ugSample 112919 1048 120619 2208 1Bromochloromethane ND

264 455 ugSample 112919 1048 120619 2208 1Bromodichloromethane ND

264 804 ugSample 112919 1048 120619 2208 1Bromoform ND

529 307 ugSample 112919 1048 120619 2208 1Bromomethane ND

264 656 ugSample 112919 1048 120619 2208 1Carbon disulfide ND

264 349 ugSample 112919 1048 120619 2208 1Carbon tetrachloride ND

777 777 ugSample 112919 1048 120619 2208 1Carbonyl Difluoride ND

264 381 ugSample 112919 1048 120619 2208 1Chlorobenzene ND

264 571 ugSample 112919 1048 120619 2208 1Chlorodibromomethane ND

529 116 ugSample 112919 1048 120619 2208 1Chloroethane ND

264 307 ugSample 112919 1048 120619 2208 1Chloroform ND

529 220 ugSample 112919 1048 120619 2208 1Chloromethane ND

264 212 ugSample 112919 1048 120619 2208 1cis-12-Dichloroethene ND

264 455 ugSample 112919 1048 120619 2208 1cis-13-Dichloropropene ND

264 254 ugSample 112919 1048 120619 2208 1Dibromomethane ND

529 931 ugSample 112919 1048 120619 2208 1Dichlorodifluoromethane ND

264 434 ugSample 112919 1048 120619 2208 1Ethylbenzene ND

264 264 ugSample 112919 1048 120619 2208 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

264 698 ugSample 112919 1048 120619 2208 1Hexachlorobutadiene ND

253 253 ugSample 112919 1048 120619 2208 1HFPO dimer methyl ester as

HFPO-DA

ND

264 370 ugSample 112919 1048 120619 2208 1Isopropylbenzene ND

529 434 ugSample 112919 1048 120619 2208 1mp-Xylene ND

264 169 ugSample 112919 1048 120619 2208 1Methylene Chloride ND

264 127 ugSample 112919 1048 120619 2208 1Naphthalene ND

264 677 ugSample 112919 1048 120619 2208 1n-Butylbenzene ND

264 571 ugSample 112919 1048 120619 2208 1n-Propylbenzene ND

264 275 ugSample 112919 1048 120619 2208 1o-Xylene ND

264 518 ugSample 112919 1048 120619 2208 1sec-Butylbenzene ND

264 571 ugSample 112919 1048 120619 2208 1Styrene ND

264 465 ugSample 112919 1048 120619 2208 1tert-Butylbenzene ND

264 349 ugSample 112919 1048 120619 2208 1Tetrachloroethene ND

264 487 ugSample 112919 1048 120619 2208 1Toluene ND

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12232019Page 22 of 89473

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-4Client Sample ID Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

trans-12-Dichloroethene ND 264 275 ugSample 112919 1048 120619 2208 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

264 931 ugSample 112919 1048 120619 2208 1trans-13-Dichloropropene ND

264 190 ugSample 112919 1048 120619 2208 1Trichloroethene ND

529 508 ugSample 112919 1048 120619 2208 1Trichlorofluoromethane ND

529 127 ugSample 112919 1048 120619 2208 1Vinyl chloride ND

Unknown 365 T J ugSample 113 112919 1048 120619 2208 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2208112919 1048T JUnknown 452 ugSample 118

1120619 2208112919 1048T J NCyclohexane 110-82-7419 ugSample 442

12-Dichloroethane-d4 (Surr) 120 70 - 160 112919 1048 120619 2208 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 110 112919 1048 120619 2208 157 - 152

Dibromofluoromethane (Surr) 104 112919 1048 120619 2208 162 - 134

Toluene-d8 (Surr) 96 112919 1048 120619 2208 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 22000 5640 2820 ugSample 112919 1048 121219 1510 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2330 1060 ugSample 112919 1048 121719 2051 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-5Client Sample ID Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 241 318 ugSample 112919 1048 120619 2232 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

482 482 ugSample 112919 1048 120619 2232 111133-Pentafluorobutane ND

241 347 ugSample 112919 1048 120619 2232 1111-Trichloroethane ND

482 954 ugSample 112919 1048 120619 2232 1111-Trifluoro-22-dichloroethane ND

482 482 ugSample 112919 1048 120619 2232 1111-Trifluoroethane ND

241 462 ugSample 112919 1048 120619 2232 11122-Tetrachloroethane ND

482 270 ugSample 112919 1048 120619 2232 1112-Trichloro-122-trifluoroethane ND

482 482 ugSample 112919 1048 120619 2232 1112-trichloro-1-fluoroethane ND

241 250 ugSample 112919 1048 120619 2232 1112-Trichloroethane ND

482 241 ugSample 112919 1048 120619 2232 111-Dichloro-1-fluoroethane ND

482 482 ugSample 112919 1048 120619 2232 111-dichloro-22-difluoroethane ND

482 482 ugSample 112919 1048 120619 2232 111-dichloro-22-difluoroethene ND

241 289 ugSample 112919 1048 120619 2232 111-Dichloroethane ND

241 356 ugSample 112919 1048 120619 2232 111-Dichloroethene ND

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-5Client Sample ID Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

11-Dichloropropene ND 241 260 ugSample 112919 1048 120619 2232 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

482 482 ugSample 112919 1048 120619 2232 111-Difluoroethene ND

482 482 ugSample 112919 1048 120619 2232 1122-trichloro-11-difluoroethane ND

241 771 ugSample 112919 1048 120619 2232 1123-Trichlorobenzene ND

241 597 ugSample 112919 1048 120619 2232 1123-Trichloropropane ND

241 809 ugSample 112919 1048 120619 2232 1124-Trichlorobenzene ND

241 501 ugSample 112919 1048 120619 2232 1124-Trimethylbenzene ND

482 848 ugSample 112919 1048 120619 2232 112-Dibromo-3-Chloropropane ND

241 318 ugSample 112919 1048 120619 2232 112-Dibromoethane (EDB) ND

482 482 ugSample 112919 1048 120619 2232 112-dichloro-11-difluoroethane ND

241 424 ugSample 112919 1048 120619 2232 112-Dichlorobenzene ND

241 405 ugSample 112919 1048 120619 2232 112-Dichloroethane ND

241 241 ugSample 112919 1048 120619 2232 112-Dichloropropane ND

241 501 ugSample 112919 1048 120619 2232 1135-Trimethylbenzene ND

241 414 ugSample 112919 1048 120619 2232 113-Dichlorobenzene ND

241 270 ugSample 112919 1048 120619 2232 113-Dichloropropane ND

241 482 ugSample 112919 1048 120619 2232 114-Dichlorobenzene ND

482 491 ugSample 112919 1048 120619 2232 11-Chloro-11-difluoroethane ND

482 482 ugSample 112919 1048 120619 2232 122-dichloro-11-difluoroethylmethyl

ether

ND

241 703 ugSample 112919 1048 120619 2232 122-Dichloropropane ND

963 154 ugSample 112919 1048 120619 2232 12-Butanone (MEK) ND

482 713 ugSample 112919 1048 120619 2232 12-chloro-111444-hexafluoro-2-but

ene

ND

482 482 ugSample 112919 1048 120619 2232 12-Chloro-111-Trifluoroethane ND

241 453 ugSample 112919 1048 120619 2232 12-Chlorotoluene ND

963 222 ugSample 112919 1048 120619 2232 12-Hexanone ND

210 210 ugSample 112919 1048 120619 2232 12-MTP as HFPO 490

241 501 ugSample 112919 1048 120619 2232 14-Chlorotoluene ND

241 645 ugSample 112919 1048 120619 2232 14-Isopropyltoluene ND

963 154 ugSample 112919 1048 120619 2232 14-Methyl-2-pentanone (MIBK) ND

963 568 ugSample 112919 1048 120619 2232 1Acetone ND

241 462 ugSample 112919 1048 120619 2232 1Benzene ND

241 337 ugSample 112919 1048 120619 2232 1Bromobenzene ND

241 540 ugSample 112919 1048 120619 2232 1Bromochloromethane ND

241 414 ugSample 112919 1048 120619 2232 1Bromodichloromethane ND

241 732 ugSample 112919 1048 120619 2232 1Bromoform ND

482 279 ugSample 112919 1048 120619 2232 1Bromomethane ND

241 597 ugSample 112919 1048 120619 2232 1Carbon disulfide ND

241 318 ugSample 112919 1048 120619 2232 1Carbon tetrachloride ND

706 706 ugSample 112919 1048 120619 2232 1Carbonyl Difluoride ND

241 347 ugSample 112919 1048 120619 2232 1Chlorobenzene ND

241 520 ugSample 112919 1048 120619 2232 1Chlorodibromomethane ND

482 106 ugSample 112919 1048 120619 2232 1Chloroethane ND

241 279 ugSample 112919 1048 120619 2232 1Chloroform ND

482 200 ugSample 112919 1048 120619 2232 1Chloromethane ND

241 193 ugSample 112919 1048 120619 2232 1cis-12-Dichloroethene ND

241 414 ugSample 112919 1048 120619 2232 1cis-13-Dichloropropene ND

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-5Client Sample ID Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Dibromomethane ND 241 231 ugSample 112919 1048 120619 2232 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

482 848 ugSample 112919 1048 120619 2232 1Dichlorodifluoromethane ND

241 395 ugSample 112919 1048 120619 2232 1Ethylbenzene ND

241 241 ugSample 112919 1048 120619 2232 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

241 636 ugSample 112919 1048 120619 2232 1Hexachlorobutadiene ND

231 231 ugSample 112919 1048 120619 2232 1HFPO dimer methyl ester as

HFPO-DA

ND

241 337 ugSample 112919 1048 120619 2232 1Isopropylbenzene ND

482 395 ugSample 112919 1048 120619 2232 1mp-Xylene ND

241 154 ugSample 112919 1048 120619 2232 1Methylene Chloride ND

241 116 ugSample 112919 1048 120619 2232 1Naphthalene ND

241 617 ugSample 112919 1048 120619 2232 1n-Butylbenzene ND

241 520 ugSample 112919 1048 120619 2232 1n-Propylbenzene ND

241 250 ugSample 112919 1048 120619 2232 1o-Xylene ND

241 472 ugSample 112919 1048 120619 2232 1sec-Butylbenzene ND

241 520 ugSample 112919 1048 120619 2232 1Styrene ND

241 424 ugSample 112919 1048 120619 2232 1tert-Butylbenzene ND

241 318 ugSample 112919 1048 120619 2232 1Tetrachloroethene ND

241 443 ugSample 112919 1048 120619 2232 1Toluene ND

241 250 ugSample 112919 1048 120619 2232 1trans-12-Dichloroethene ND

241 848 ugSample 112919 1048 120619 2232 1trans-13-Dichloropropene ND

241 173 ugSample 112919 1048 120619 2232 1Trichloroethene ND

482 462 ugSample 112919 1048 120619 2232 1Trichlorofluoromethane ND

482 116 ugSample 112919 1048 120619 2232 1Vinyl chloride ND

Unknown 223 T J ugSample 113 112919 1048 120619 2232 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2232112919 1048T J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-8104 ugSample 118

1120619 2232112919 1048T J NCyclohexane 110-82-7410 ugSample 442

1120619 2232112919 1048T JUnknown 309 ugSample 1317

12-Dichloroethane-d4 (Surr) 121 70 - 160 112919 1048 120619 2232 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1048 120619 2232 157 - 152

Dibromofluoromethane (Surr) 106 112919 1048 120619 2232 162 - 134

Toluene-d8 (Surr) 95 112919 1048 120619 2232 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 4360 J 5140 2570 ugSample 112919 1048 121119 2330 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2120 963 ugSample 112919 1048 121719 2114 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-6Client Sample ID Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 313 413 ugSample 112919 1048 120619 2257 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

627 627 ugSample 112919 1048 120619 2257 111133-Pentafluorobutane ND

313 451 ugSample 112919 1048 120619 2257 1111-Trichloroethane ND

627 124 ugSample 112919 1048 120619 2257 1111-Trifluoro-22-dichloroethane ND

627 627 ugSample 112919 1048 120619 2257 1111-Trifluoroethane ND

313 601 ugSample 112919 1048 120619 2257 11122-Tetrachloroethane ND

627 351 ugSample 112919 1048 120619 2257 1112-Trichloro-122-trifluoroethane ND

627 627 ugSample 112919 1048 120619 2257 1112-trichloro-1-fluoroethane ND

313 326 ugSample 112919 1048 120619 2257 1112-Trichloroethane ND

627 313 ugSample 112919 1048 120619 2257 111-Dichloro-1-fluoroethane ND

627 627 ugSample 112919 1048 120619 2257 111-dichloro-22-difluoroethane ND

627 627 ugSample 112919 1048 120619 2257 111-dichloro-22-difluoroethene ND

313 376 ugSample 112919 1048 120619 2257 111-Dichloroethane ND

313 464 ugSample 112919 1048 120619 2257 111-Dichloroethene ND

313 338 ugSample 112919 1048 120619 2257 111-Dichloropropene ND

627 627 ugSample 112919 1048 120619 2257 111-Difluoroethene ND

627 627 ugSample 112919 1048 120619 2257 1122-trichloro-11-difluoroethane ND

313 100 ugSample 112919 1048 120619 2257 1123-Trichlorobenzene ND

313 777 ugSample 112919 1048 120619 2257 1123-Trichloropropane ND

313 105 ugSample 112919 1048 120619 2257 1124-Trichlorobenzene ND

313 652 ugSample 112919 1048 120619 2257 1124-Trimethylbenzene ND

627 110 ugSample 112919 1048 120619 2257 112-Dibromo-3-Chloropropane ND

313 413 ugSample 112919 1048 120619 2257 112-Dibromoethane (EDB) ND

627 627 ugSample 112919 1048 120619 2257 112-dichloro-11-difluoroethane ND

313 551 ugSample 112919 1048 120619 2257 112-Dichlorobenzene ND

313 526 ugSample 112919 1048 120619 2257 112-Dichloroethane ND

313 313 ugSample 112919 1048 120619 2257 112-Dichloropropane ND

313 652 ugSample 112919 1048 120619 2257 1135-Trimethylbenzene ND

313 539 ugSample 112919 1048 120619 2257 113-Dichlorobenzene ND

313 351 ugSample 112919 1048 120619 2257 113-Dichloropropane ND

313 627 ugSample 112919 1048 120619 2257 114-Dichlorobenzene ND

627 639 ugSample 112919 1048 120619 2257 11-Chloro-11-difluoroethane ND

627 627 ugSample 112919 1048 120619 2257 122-dichloro-11-difluoroethylmethyl

ether

ND

313 915 ugSample 112919 1048 120619 2257 122-Dichloropropane ND

125 200 ugSample 112919 1048 120619 2257 12-Butanone (MEK) ND

627 927 ugSample 112919 1048 120619 2257 12-chloro-111444-hexafluoro-2-but

ene

ND

627 627 ugSample 112919 1048 120619 2257 12-Chloro-111-Trifluoroethane ND

313 589 ugSample 112919 1048 120619 2257 12-Chlorotoluene ND

125 288 ugSample 112919 1048 120619 2257 12-Hexanone ND

273 273 ugSample 112919 1048 120619 2257 12-MTP as HFPO 672

313 652 ugSample 112919 1048 120619 2257 14-Chlorotoluene ND

313 840 ugSample 112919 1048 120619 2257 14-Isopropyltoluene ND

125 200 ugSample 112919 1048 120619 2257 14-Methyl-2-pentanone (MIBK) ND

125 739 ugSample 112919 1048 120619 2257 1Acetone ND

313 601 ugSample 112919 1048 120619 2257 1Benzene ND

313 439 ugSample 112919 1048 120619 2257 1Bromobenzene ND

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ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-6Client Sample ID Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromochloromethane ND 313 702 ugSample 112919 1048 120619 2257 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

313 539 ugSample 112919 1048 120619 2257 1Bromodichloromethane ND

313 952 ugSample 112919 1048 120619 2257 1Bromoform ND

627 363 ugSample 112919 1048 120619 2257 1Bromomethane ND

313 777 ugSample 112919 1048 120619 2257 1Carbon disulfide ND

313 413 ugSample 112919 1048 120619 2257 1Carbon tetrachloride ND

916 916 ugSample 112919 1048 120619 2257 1Carbonyl Difluoride ND

313 451 ugSample 112919 1048 120619 2257 1Chlorobenzene ND

313 677 ugSample 112919 1048 120619 2257 1Chlorodibromomethane ND

627 138 ugSample 112919 1048 120619 2257 1Chloroethane ND

313 363 ugSample 112919 1048 120619 2257 1Chloroform ND

627 261 ugSample 112919 1048 120619 2257 1Chloromethane ND

313 251 ugSample 112919 1048 120619 2257 1cis-12-Dichloroethene ND

313 539 ugSample 112919 1048 120619 2257 1cis-13-Dichloropropene ND

313 301 ugSample 112919 1048 120619 2257 1Dibromomethane ND

627 110 ugSample 112919 1048 120619 2257 1Dichlorodifluoromethane ND

313 514 ugSample 112919 1048 120619 2257 1Ethylbenzene ND

313 313 ugSample 112919 1048 120619 2257 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

313 827 ugSample 112919 1048 120619 2257 1Hexachlorobutadiene ND

300 300 ugSample 112919 1048 120619 2257 1HFPO dimer methyl ester as

HFPO-DA

ND

313 439 ugSample 112919 1048 120619 2257 1Isopropylbenzene ND

627 514 ugSample 112919 1048 120619 2257 1mp-Xylene ND

313 200 ugSample 112919 1048 120619 2257 1Methylene Chloride ND

313 150 ugSample 112919 1048 120619 2257 1Naphthalene ND

313 802 ugSample 112919 1048 120619 2257 1n-Butylbenzene ND

313 677 ugSample 112919 1048 120619 2257 1n-Propylbenzene ND

313 326 ugSample 112919 1048 120619 2257 1o-Xylene ND

313 614 ugSample 112919 1048 120619 2257 1sec-Butylbenzene ND

313 677 ugSample 112919 1048 120619 2257 1Styrene ND

313 551 ugSample 112919 1048 120619 2257 1tert-Butylbenzene ND

313 413 ugSample 112919 1048 120619 2257 1Tetrachloroethene ND

313 576 ugSample 112919 1048 120619 2257 1Toluene ND

313 326 ugSample 112919 1048 120619 2257 1trans-12-Dichloroethene ND

313 110 ugSample 112919 1048 120619 2257 1trans-13-Dichloropropene ND

313 226 ugSample 112919 1048 120619 2257 1Trichloroethene ND

627 601 ugSample 112919 1048 120619 2257 1Trichlorofluoromethane ND

627 150 ugSample 112919 1048 120619 2257 1Vinyl chloride ND

Unknown 273 T J ugSample 113 112919 1048 120619 2257 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2257112919 1048T J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-8160 ugSample 118

12-Dichloroethane-d4 (Surr) 118 70 - 160 112919 1048 120619 2257 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 108 112919 1048 120619 2257 157 - 152

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12232019Page 27 of 89478

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-6Client Sample ID Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)

Dibromofluoromethane (Surr) 105 62 - 134 112919 1048 120619 2257 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Toluene-d8 (Surr) 97 112919 1048 120619 2257 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 3970 J 6680 3340 ugSample 112919 1048 121119 2350 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2760 1250 ugSample 112919 1048 121719 2137 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-7Client Sample ID Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 302 399 ugSample 112919 1048 120619 2321 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

604 604 ugSample 112919 1048 120619 2321 111133-Pentafluorobutane ND

302 435 ugSample 112919 1048 120619 2321 1111-Trichloroethane ND

604 120 ugSample 112919 1048 120619 2321 1111-Trifluoro-22-dichloroethane ND

604 604 ugSample 112919 1048 120619 2321 1111-Trifluoroethane ND

302 580 ugSample 112919 1048 120619 2321 11122-Tetrachloroethane ND

604 338 ugSample 112919 1048 120619 2321 1112-Trichloro-122-trifluoroethane ND

604 604 ugSample 112919 1048 120619 2321 1112-trichloro-1-fluoroethane ND

302 314 ugSample 112919 1048 120619 2321 1112-Trichloroethane ND

604 302 ugSample 112919 1048 120619 2321 111-Dichloro-1-fluoroethane ND

604 604 ugSample 112919 1048 120619 2321 111-dichloro-22-difluoroethane ND

604 604 ugSample 112919 1048 120619 2321 111-dichloro-22-difluoroethene ND

302 362 ugSample 112919 1048 120619 2321 111-Dichloroethane ND

302 447 ugSample 112919 1048 120619 2321 111-Dichloroethene ND

302 326 ugSample 112919 1048 120619 2321 111-Dichloropropene ND

604 604 ugSample 112919 1048 120619 2321 111-Difluoroethene ND

604 604 ugSample 112919 1048 120619 2321 1122-trichloro-11-difluoroethane ND

302 967 ugSample 112919 1048 120619 2321 1123-Trichlorobenzene ND

302 749 ugSample 112919 1048 120619 2321 1123-Trichloropropane ND

302 101 ugSample 112919 1048 120619 2321 1124-Trichlorobenzene ND

302 628 ugSample 112919 1048 120619 2321 1124-Trimethylbenzene ND

604 106 ugSample 112919 1048 120619 2321 112-Dibromo-3-Chloropropane ND

302 399 ugSample 112919 1048 120619 2321 112-Dibromoethane (EDB) ND

604 604 ugSample 112919 1048 120619 2321 112-dichloro-11-difluoroethane ND

302 532 ugSample 112919 1048 120619 2321 112-Dichlorobenzene ND

302 507 ugSample 112919 1048 120619 2321 112-Dichloroethane ND

302 302 ugSample 112919 1048 120619 2321 112-Dichloropropane ND

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-7Client Sample ID Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

135-Trimethylbenzene ND 302 628 ugSample 112919 1048 120619 2321 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

302 520 ugSample 112919 1048 120619 2321 113-Dichlorobenzene ND

302 338 ugSample 112919 1048 120619 2321 113-Dichloropropane ND

302 604 ugSample 112919 1048 120619 2321 114-Dichlorobenzene ND

604 616 ugSample 112919 1048 120619 2321 11-Chloro-11-difluoroethane ND

604 604 ugSample 112919 1048 120619 2321 122-dichloro-11-difluoroethylmethyl

ether

ND

302 882 ugSample 112919 1048 120619 2321 122-Dichloropropane ND

121 193 ugSample 112919 1048 120619 2321 12-Butanone (MEK) ND

604 894 ugSample 112919 1048 120619 2321 12-chloro-111444-hexafluoro-2-but

ene

ND

604 604 ugSample 112919 1048 120619 2321 12-Chloro-111-Trifluoroethane ND

302 568 ugSample 112919 1048 120619 2321 12-Chlorotoluene ND

121 278 ugSample 112919 1048 120619 2321 12-Hexanone ND

264 264 ugSample 112919 1048 120619 2321 12-MTP as HFPO 467

302 628 ugSample 112919 1048 120619 2321 14-Chlorotoluene ND

302 809 ugSample 112919 1048 120619 2321 14-Isopropyltoluene ND

121 193 ugSample 112919 1048 120619 2321 14-Methyl-2-pentanone (MIBK) ND

121 713 ugSample 112919 1048 120619 2321 1Acetone ND

302 580 ugSample 112919 1048 120619 2321 1Benzene ND

302 423 ugSample 112919 1048 120619 2321 1Bromobenzene ND

302 677 ugSample 112919 1048 120619 2321 1Bromochloromethane ND

302 520 ugSample 112919 1048 120619 2321 1Bromodichloromethane ND

302 918 ugSample 112919 1048 120619 2321 1Bromoform ND

604 350 ugSample 112919 1048 120619 2321 1Bromomethane ND

302 749 ugSample 112919 1048 120619 2321 1Carbon disulfide ND

302 399 ugSample 112919 1048 120619 2321 1Carbon tetrachloride ND

887 887 ugSample 112919 1048 120619 2321 1Carbonyl Difluoride ND

302 435 ugSample 112919 1048 120619 2321 1Chlorobenzene ND

302 652 ugSample 112919 1048 120619 2321 1Chlorodibromomethane ND

604 133 ugSample 112919 1048 120619 2321 1Chloroethane ND

302 350 ugSample 112919 1048 120619 2321 1Chloroform ND

604 251 ugSample 112919 1048 120619 2321 1Chloromethane ND

302 242 ugSample 112919 1048 120619 2321 1cis-12-Dichloroethene ND

302 520 ugSample 112919 1048 120619 2321 1cis-13-Dichloropropene ND

302 290 ugSample 112919 1048 120619 2321 1Dibromomethane ND

604 106 ugSample 112919 1048 120619 2321 1Dichlorodifluoromethane ND

302 495 ugSample 112919 1048 120619 2321 1Ethylbenzene ND

302 302 ugSample 112919 1048 120619 2321 1Heptafluoropropyl 1222-tetrafluoroethyl ether

550

302 797 ugSample 112919 1048 120619 2321 1Hexachlorobutadiene ND

290 290 ugSample 112919 1048 120619 2321 1HFPO dimer methyl ester as

HFPO-DA

ND

302 423 ugSample 112919 1048 120619 2321 1Isopropylbenzene ND

604 495 ugSample 112919 1048 120619 2321 1mp-Xylene ND

302 193 ugSample 112919 1048 120619 2321 1Methylene Chloride 116

302 145 ugSample 112919 1048 120619 2321 1Naphthalene ND

302 773 ugSample 112919 1048 120619 2321 1n-Butylbenzene ND

Eurofins TestAmerica Knoxville

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-7Client Sample ID Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

n-Propylbenzene ND 302 652 ugSample 112919 1048 120619 2321 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

302 314 ugSample 112919 1048 120619 2321 1o-Xylene ND

302 592 ugSample 112919 1048 120619 2321 1sec-Butylbenzene ND

302 652 ugSample 112919 1048 120619 2321 1Styrene ND

302 532 ugSample 112919 1048 120619 2321 1tert-Butylbenzene ND

302 399 ugSample 112919 1048 120619 2321 1Tetrachloroethene ND

302 556 ugSample 112919 1048 120619 2321 1Toluene ND

302 314 ugSample 112919 1048 120619 2321 1trans-12-Dichloroethene ND

302 106 ugSample 112919 1048 120619 2321 1trans-13-Dichloropropene ND

302 217 ugSample 112919 1048 120619 2321 1Trichloroethene ND

604 580 ugSample 112919 1048 120619 2321 1Trichlorofluoromethane ND

604 145 ugSample 112919 1048 120619 2321 1Vinyl chloride ND

Unknown 275 T J ugSample 113 112919 1048 120619 2321 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2321112919 1048T JUnknown 2960 ugSample 118

1120619 2321112919 1048T JUnknown 572 ugSample 122

1120619 2321112919 1048T JUnknown 229 ugSample 212

1120619 2321112919 1048T JUnknown 104 ugSample 250

1120619 2321112919 1048T J NCyclohexane 110-82-7363 ugSample 442

12-Dichloroethane-d4 (Surr) 118 70 - 160 112919 1048 120619 2321 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1048 120619 2321 157 - 152

Dibromofluoromethane (Surr) 105 112919 1048 120619 2321 162 - 134

Toluene-d8 (Surr) 96 112919 1048 120619 2321 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 6490 6440 3220 ugSample 112919 1048 121219 0011 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2660 1210 ugSample 112919 1048 121819 0946 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-8Client Sample ID Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 296 390 ugSample 112919 1048 120619 2346 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

591 591 ugSample 112919 1048 120619 2346 111133-Pentafluorobutane ND

296 426 ugSample 112919 1048 120619 2346 1111-Trichloroethane ND

591 117 ugSample 112919 1048 120619 2346 1111-Trifluoro-22-dichloroethane ND

Eurofins TestAmerica Knoxville

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-8Client Sample ID Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

111-Trifluoroethane ND 591 591 ugSample 112919 1048 120619 2346 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

296 567 ugSample 112919 1048 120619 2346 11122-Tetrachloroethane ND

591 331 ugSample 112919 1048 120619 2346 1112-Trichloro-122-trifluoroethane ND

591 591 ugSample 112919 1048 120619 2346 1112-trichloro-1-fluoroethane ND

296 307 ugSample 112919 1048 120619 2346 1112-Trichloroethane ND

591 296 ugSample 112919 1048 120619 2346 111-Dichloro-1-fluoroethane ND

591 591 ugSample 112919 1048 120619 2346 111-dichloro-22-difluoroethane ND

591 591 ugSample 112919 1048 120619 2346 111-dichloro-22-difluoroethene ND

296 355 ugSample 112919 1048 120619 2346 111-Dichloroethane ND

296 437 ugSample 112919 1048 120619 2346 111-Dichloroethene ND

296 319 ugSample 112919 1048 120619 2346 111-Dichloropropene ND

591 591 ugSample 112919 1048 120619 2346 111-Difluoroethene ND

591 591 ugSample 112919 1048 120619 2346 1122-trichloro-11-difluoroethane ND

296 946 ugSample 112919 1048 120619 2346 1123-Trichlorobenzene ND

296 733 ugSample 112919 1048 120619 2346 1123-Trichloropropane ND

296 993 ugSample 112919 1048 120619 2346 1124-Trichlorobenzene ND

296 615 ugSample 112919 1048 120619 2346 1124-Trimethylbenzene ND

591 104 ugSample 112919 1048 120619 2346 112-Dibromo-3-Chloropropane ND

296 390 ugSample 112919 1048 120619 2346 112-Dibromoethane (EDB) ND

591 591 ugSample 112919 1048 120619 2346 112-dichloro-11-difluoroethane ND

296 520 ugSample 112919 1048 120619 2346 112-Dichlorobenzene ND

296 496 ugSample 112919 1048 120619 2346 112-Dichloroethane ND

296 296 ugSample 112919 1048 120619 2346 112-Dichloropropane ND

296 615 ugSample 112919 1048 120619 2346 1135-Trimethylbenzene ND

296 508 ugSample 112919 1048 120619 2346 113-Dichlorobenzene ND

296 331 ugSample 112919 1048 120619 2346 113-Dichloropropane ND

296 591 ugSample 112919 1048 120619 2346 114-Dichlorobenzene ND

591 603 ugSample 112919 1048 120619 2346 11-Chloro-11-difluoroethane ND

591 591 ugSample 112919 1048 120619 2346 122-dichloro-11-difluoroethylmethyl

ether

ND

296 863 ugSample 112919 1048 120619 2346 122-Dichloropropane ND

118 189 ugSample 112919 1048 120619 2346 12-Butanone (MEK) ND

591 875 ugSample 112919 1048 120619 2346 12-chloro-111444-hexafluoro-2-but

ene

ND

591 591 ugSample 112919 1048 120619 2346 12-Chloro-111-Trifluoroethane ND

296 556 ugSample 112919 1048 120619 2346 12-Chlorotoluene ND

118 272 ugSample 112919 1048 120619 2346 12-Hexanone ND

259 259 ugSample 112919 1048 120619 2346 12-MTP as HFPO 610

296 615 ugSample 112919 1048 120619 2346 14-Chlorotoluene ND

296 792 ugSample 112919 1048 120619 2346 14-Isopropyltoluene ND

118 189 ugSample 112919 1048 120619 2346 14-Methyl-2-pentanone (MIBK) ND

118 697 ugSample 112919 1048 120619 2346 1Acetone ND

296 567 ugSample 112919 1048 120619 2346 1Benzene ND

296 414 ugSample 112919 1048 120619 2346 1Bromobenzene ND

296 662 ugSample 112919 1048 120619 2346 1Bromochloromethane ND

296 508 ugSample 112919 1048 120619 2346 1Bromodichloromethane ND

296 898 ugSample 112919 1048 120619 2346 1Bromoform ND

591 343 ugSample 112919 1048 120619 2346 1Bromomethane ND

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12232019Page 31 of 89482

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-8Client Sample ID Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Carbon disulfide ND 296 733 ugSample 112919 1048 120619 2346 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

296 390 ugSample 112919 1048 120619 2346 1Carbon tetrachloride ND

865 865 ugSample 112919 1048 120619 2346 1Carbonyl Difluoride ND

296 426 ugSample 112919 1048 120619 2346 1Chlorobenzene ND

296 638 ugSample 112919 1048 120619 2346 1Chlorodibromomethane ND

591 130 ugSample 112919 1048 120619 2346 1Chloroethane ND

296 343 ugSample 112919 1048 120619 2346 1Chloroform ND

591 246 ugSample 112919 1048 120619 2346 1Chloromethane ND

296 236 ugSample 112919 1048 120619 2346 1cis-12-Dichloroethene ND

296 508 ugSample 112919 1048 120619 2346 1cis-13-Dichloropropene ND

296 284 ugSample 112919 1048 120619 2346 1Dibromomethane ND

591 104 ugSample 112919 1048 120619 2346 1Dichlorodifluoromethane ND

296 485 ugSample 112919 1048 120619 2346 1Ethylbenzene ND

296 296 ugSample 112919 1048 120619 2346 1Heptafluoropropyl 1222-tetrafluoroethyl ether

193

296 780 ugSample 112919 1048 120619 2346 1Hexachlorobutadiene ND

284 284 ugSample 112919 1048 120619 2346 1HFPO dimer methyl ester as

HFPO-DA

ND

296 414 ugSample 112919 1048 120619 2346 1Isopropylbenzene ND

591 485 ugSample 112919 1048 120619 2346 1mp-Xylene ND

296 189 ugSample 112919 1048 120619 2346 1Methylene Chloride ND

296 142 ugSample 112919 1048 120619 2346 1Naphthalene ND

296 757 ugSample 112919 1048 120619 2346 1n-Butylbenzene ND

296 638 ugSample 112919 1048 120619 2346 1n-Propylbenzene ND

296 307 ugSample 112919 1048 120619 2346 1o-Xylene ND

296 579 ugSample 112919 1048 120619 2346 1sec-Butylbenzene ND

296 638 ugSample 112919 1048 120619 2346 1Styrene ND

296 520 ugSample 112919 1048 120619 2346 1tert-Butylbenzene ND

296 390 ugSample 112919 1048 120619 2346 1Tetrachloroethene ND

296 544 ugSample 112919 1048 120619 2346 1Toluene ND

296 307 ugSample 112919 1048 120619 2346 1trans-12-Dichloroethene ND

296 104 ugSample 112919 1048 120619 2346 1trans-13-Dichloropropene ND

296 213 ugSample 112919 1048 120619 2346 1Trichloroethene ND

591 567 ugSample 112919 1048 120619 2346 1Trichlorofluoromethane ND

591 142 ugSample 112919 1048 120619 2346 1Vinyl chloride ND

Unknown 341 T J ugSample 113 112919 1048 120619 2346 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2346112919 1048T JUnknown 2160 ugSample 119

1120619 2346112919 1048T J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-8497 ugSample 122

1120619 2346112919 1048T J NCyclohexane 110-82-7397 ugSample 442

1120619 2346112919 1048T J NCyclotetrasiloxane octamethyl- 556-67-2316 ugSample 878

1120619 2346112919 1048T J NSalicylic acid 2TMS derivative 3789-85-3307 ugSample 1136

1120619 2346112919 1048T JUnknown 563 ugSample 1317

12-Dichloroethane-d4 (Surr) 115 70 - 160 112919 1048 120619 2346 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Eurofins TestAmerica Knoxville

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-8Client Sample ID Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)

4-Bromofluorobenzene (Surr) 110 57 - 152 112919 1048 120619 2346 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Dibromofluoromethane (Surr) 104 112919 1048 120619 2346 162 - 134

Toluene-d8 (Surr) 97 112919 1048 120619 2346 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 24300 6380 3190 ugSample 112919 1048 121319 1843 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2600 1180 ugSample 112919 1048 121819 1009 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-9Client Sample ID Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND H 308 406 ugSample 112919 1048 120719 0010 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

615 615 ugSample 112919 1048 120719 0010 111133-Pentafluorobutane ND H

308 443 ugSample 112919 1048 120719 0010 1111-Trichloroethane ND H

615 122 ugSample 112919 1048 120719 0010 1111-Trifluoro-22-dichloroethane ND H

615 615 ugSample 112919 1048 120719 0010 1111-Trifluoroethane ND H

308 591 ugSample 112919 1048 120719 0010 11122-Tetrachloroethane ND H

615 345 ugSample 112919 1048 120719 0010 1112-Trichloro-122-trifluoroethane ND H

615 615 ugSample 112919 1048 120719 0010 1112-trichloro-1-fluoroethane ND H

308 320 ugSample 112919 1048 120719 0010 1112-Trichloroethane ND H

615 308 ugSample 112919 1048 120719 0010 111-Dichloro-1-fluoroethane ND H

615 615 ugSample 112919 1048 120719 0010 111-dichloro-22-difluoroethane ND H

615 615 ugSample 112919 1048 120719 0010 111-dichloro-22-difluoroethene ND H

308 369 ugSample 112919 1048 120719 0010 111-Dichloroethane ND H

308 455 ugSample 112919 1048 120719 0010 111-Dichloroethene ND H

308 332 ugSample 112919 1048 120719 0010 111-Dichloropropene ND H

615 615 ugSample 112919 1048 120719 0010 111-Difluoroethene ND H

615 615 ugSample 112919 1048 120719 0010 1122-trichloro-11-difluoroethane ND H

308 985 ugSample 112919 1048 120719 0010 1123-Trichlorobenzene ND H

308 763 ugSample 112919 1048 120719 0010 1123-Trichloropropane ND H

308 103 ugSample 112919 1048 120719 0010 1124-Trichlorobenzene ND H

308 640 ugSample 112919 1048 120719 0010 1124-Trimethylbenzene ND H

615 108 ugSample 112919 1048 120719 0010 112-Dibromo-3-Chloropropane ND H

308 406 ugSample 112919 1048 120719 0010 112-Dibromoethane (EDB) ND H

615 615 ugSample 112919 1048 120719 0010 112-dichloro-11-difluoroethane ND H

308 542 ugSample 112919 1048 120719 0010 112-Dichlorobenzene ND H

308 517 ugSample 112919 1048 120719 0010 112-Dichloroethane ND H

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-9Client Sample ID Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

12-Dichloropropane ND H 308 308 ugSample 112919 1048 120719 0010 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

308 640 ugSample 112919 1048 120719 0010 1135-Trimethylbenzene ND H

308 529 ugSample 112919 1048 120719 0010 113-Dichlorobenzene ND H

308 345 ugSample 112919 1048 120719 0010 113-Dichloropropane ND H

308 615 ugSample 112919 1048 120719 0010 114-Dichlorobenzene ND H

615 628 ugSample 112919 1048 120719 0010 11-Chloro-11-difluoroethane ND H

615 615 ugSample 112919 1048 120719 0010 122-dichloro-11-difluoroethylmethyl

ether

ND H

308 898 ugSample 112919 1048 120719 0010 122-Dichloropropane ND H

123 197 ugSample 112919 1048 120719 0010 12-Butanone (MEK) ND H

615 911 ugSample 112919 1048 120719 0010 12-chloro-111444-hexafluoro-2-but

ene

ND H

615 615 ugSample 112919 1048 120719 0010 12-Chloro-111-Trifluoroethane ND H

308 578 ugSample 112919 1048 120719 0010 12-Chlorotoluene ND H

123 283 ugSample 112919 1048 120719 0010 12-Hexanone ND H

269 269 ugSample 112919 1048 120719 0010 12-MTP as HFPO 609 H

308 640 ugSample 112919 1048 120719 0010 14-Chlorotoluene ND H

308 825 ugSample 112919 1048 120719 0010 14-Isopropyltoluene ND H

123 197 ugSample 112919 1048 120719 0010 14-Methyl-2-pentanone (MIBK) ND H

123 726 ugSample 112919 1048 120719 0010 1Acetone ND H

308 591 ugSample 112919 1048 120719 0010 1Benzene ND H

308 431 ugSample 112919 1048 120719 0010 1Bromobenzene ND H

308 689 ugSample 112919 1048 120719 0010 1Bromochloromethane ND H

308 529 ugSample 112919 1048 120719 0010 1Bromodichloromethane ND H

308 935 ugSample 112919 1048 120719 0010 1Bromoform ND H

615 357 ugSample 112919 1048 120719 0010 1Bromomethane ND H

308 763 ugSample 112919 1048 120719 0010 1Carbon disulfide ND H

308 406 ugSample 112919 1048 120719 0010 1Carbon tetrachloride ND H

901 901 ugSample 112919 1048 120719 0010 1Carbonyl Difluoride ND H

308 443 ugSample 112919 1048 120719 0010 1Chlorobenzene ND H

308 665 ugSample 112919 1048 120719 0010 1Chlorodibromomethane ND H

615 135 ugSample 112919 1048 120719 0010 1Chloroethane ND H

308 357 ugSample 112919 1048 120719 0010 1Chloroform ND H

615 256 ugSample 112919 1048 120719 0010 1Chloromethane ND H

308 246 ugSample 112919 1048 120719 0010 1cis-12-Dichloroethene ND H

308 529 ugSample 112919 1048 120719 0010 1cis-13-Dichloropropene ND H

308 295 ugSample 112919 1048 120719 0010 1Dibromomethane ND H

615 108 ugSample 112919 1048 120719 0010 1Dichlorodifluoromethane ND H

308 505 ugSample 112919 1048 120719 0010 1Ethylbenzene ND H

308 308 ugSample 112919 1048 120719 0010 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND H

308 812 ugSample 112919 1048 120719 0010 1Hexachlorobutadiene ND H

295 295 ugSample 112919 1048 120719 0010 1HFPO dimer methyl ester as

HFPO-DA

ND H

308 431 ugSample 112919 1048 120719 0010 1Isopropylbenzene ND H

615 505 ugSample 112919 1048 120719 0010 1mp-Xylene ND H

308 197 ugSample 112919 1048 120719 0010 1Methylene Chloride ND H

308 148 ugSample 112919 1048 120719 0010 1Naphthalene ND H

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ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-9Client Sample ID Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

n-Butylbenzene ND H 308 788 ugSample 112919 1048 120719 0010 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

308 665 ugSample 112919 1048 120719 0010 1n-Propylbenzene ND H

308 320 ugSample 112919 1048 120719 0010 1o-Xylene ND H

308 603 ugSample 112919 1048 120719 0010 1sec-Butylbenzene ND H

308 665 ugSample 112919 1048 120719 0010 1Styrene ND H

308 542 ugSample 112919 1048 120719 0010 1tert-Butylbenzene ND H

308 406 ugSample 112919 1048 120719 0010 1Tetrachloroethene ND H

308 566 ugSample 112919 1048 120719 0010 1Toluene ND H

308 320 ugSample 112919 1048 120719 0010 1trans-12-Dichloroethene ND H

308 108 ugSample 112919 1048 120719 0010 1trans-13-Dichloropropene ND H

308 222 ugSample 112919 1048 120719 0010 1Trichloroethene ND H

615 591 ugSample 112919 1048 120719 0010 1Trichlorofluoromethane ND H

615 148 ugSample 112919 1048 120719 0010 1Vinyl chloride ND H

Unknown 490 T H J ugSample 113 112919 1048 120719 0010 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120719 0010112919 1048T H J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-82290 ugSample 118

1120719 0010112919 1048T H J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-8410 ugSample 122

1120719 0010112919 1048T H J NCyclohexane 110-82-7426 ugSample 442

12-Dichloroethane-d4 (Surr) 118 70 - 160 112919 1048 120719 0010 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1048 120719 0010 157 - 152

Dibromofluoromethane (Surr) 104 112919 1048 120719 0010 162 - 134

Toluene-d8 (Surr) 97 112919 1048 120719 0010 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 3770 J 6560 3280 ugSample 112919 1048 121319 1945 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2710 1230 ugSample 112919 1048 121819 1111 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-10Client Sample ID Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND H 304 401 ugSample 112919 1048 120719 0035 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

608 608 ugSample 112919 1048 120719 0035 111133-Pentafluorobutane ND H

304 438 ugSample 112919 1048 120719 0035 1111-Trichloroethane ND H

608 120 ugSample 112919 1048 120719 0035 1111-Trifluoro-22-dichloroethane ND H

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-10Client Sample ID Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

111-Trifluoroethane ND H 608 608 ugSample 112919 1048 120719 0035 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

304 584 ugSample 112919 1048 120719 0035 11122-Tetrachloroethane ND H

608 341 ugSample 112919 1048 120719 0035 1112-Trichloro-122-trifluoroethane ND H

608 608 ugSample 112919 1048 120719 0035 1112-trichloro-1-fluoroethane ND H

304 316 ugSample 112919 1048 120719 0035 1112-Trichloroethane ND H

608 304 ugSample 112919 1048 120719 0035 111-Dichloro-1-fluoroethane ND H

608 608 ugSample 112919 1048 120719 0035 111-dichloro-22-difluoroethane ND H

608 608 ugSample 112919 1048 120719 0035 111-dichloro-22-difluoroethene ND H

304 365 ugSample 112919 1048 120719 0035 111-Dichloroethane ND H

304 450 ugSample 112919 1048 120719 0035 111-Dichloroethene ND H

304 328 ugSample 112919 1048 120719 0035 111-Dichloropropene ND H

608 608 ugSample 112919 1048 120719 0035 111-Difluoroethene ND H

608 608 ugSample 112919 1048 120719 0035 1122-trichloro-11-difluoroethane ND H

304 973 ugSample 112919 1048 120719 0035 1123-Trichlorobenzene ND H

304 754 ugSample 112919 1048 120719 0035 1123-Trichloropropane ND H

304 102 ugSample 112919 1048 120719 0035 1124-Trichlorobenzene ND H

304 632 ugSample 112919 1048 120719 0035 1124-Trimethylbenzene ND H

608 107 ugSample 112919 1048 120719 0035 112-Dibromo-3-Chloropropane ND H

304 401 ugSample 112919 1048 120719 0035 112-Dibromoethane (EDB) ND H

608 608 ugSample 112919 1048 120719 0035 112-dichloro-11-difluoroethane ND H

304 535 ugSample 112919 1048 120719 0035 112-Dichlorobenzene ND H

304 511 ugSample 112919 1048 120719 0035 112-Dichloroethane ND H

304 304 ugSample 112919 1048 120719 0035 112-Dichloropropane ND H

304 632 ugSample 112919 1048 120719 0035 1135-Trimethylbenzene ND H

304 523 ugSample 112919 1048 120719 0035 113-Dichlorobenzene ND H

304 341 ugSample 112919 1048 120719 0035 113-Dichloropropane ND H

304 608 ugSample 112919 1048 120719 0035 114-Dichlorobenzene ND H

608 620 ugSample 112919 1048 120719 0035 11-Chloro-11-difluoroethane ND H

608 608 ugSample 112919 1048 120719 0035 122-dichloro-11-difluoroethylmethyl

ether

ND H

304 888 ugSample 112919 1048 120719 0035 122-Dichloropropane ND H

122 195 ugSample 112919 1048 120719 0035 12-Butanone (MEK) ND H

608 900 ugSample 112919 1048 120719 0035 12-chloro-111444-hexafluoro-2-but

ene

ND H

608 608 ugSample 112919 1048 120719 0035 12-Chloro-111-Trifluoroethane ND H

304 572 ugSample 112919 1048 120719 0035 12-Chlorotoluene ND H

122 280 ugSample 112919 1048 120719 0035 12-Hexanone ND H

266 266 ugSample 112919 1048 120719 0035 12-MTP as HFPO 629 H

304 632 ugSample 112919 1048 120719 0035 14-Chlorotoluene ND H

304 815 ugSample 112919 1048 120719 0035 14-Isopropyltoluene ND H

122 195 ugSample 112919 1048 120719 0035 14-Methyl-2-pentanone (MIBK) ND H

122 718 ugSample 112919 1048 120719 0035 1Acetone ND H

304 584 ugSample 112919 1048 120719 0035 1Benzene ND H

304 426 ugSample 112919 1048 120719 0035 1Bromobenzene ND H

304 681 ugSample 112919 1048 120719 0035 1Bromochloromethane ND H

304 523 ugSample 112919 1048 120719 0035 1Bromodichloromethane ND H

304 924 ugSample 112919 1048 120719 0035 1Bromoform ND H

608 353 ugSample 112919 1048 120719 0035 1Bromomethane ND H

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-10Client Sample ID Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Carbon disulfide ND H 304 754 ugSample 112919 1048 120719 0035 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

304 401 ugSample 112919 1048 120719 0035 1Carbon tetrachloride ND H

894 894 ugSample 112919 1048 120719 0035 1Carbonyl Difluoride ND H

304 438 ugSample 112919 1048 120719 0035 1Chlorobenzene ND H

304 657 ugSample 112919 1048 120719 0035 1Chlorodibromomethane ND H

608 134 ugSample 112919 1048 120719 0035 1Chloroethane ND H

304 353 ugSample 112919 1048 120719 0035 1Chloroform ND H

608 253 ugSample 112919 1048 120719 0035 1Chloromethane ND H

304 243 ugSample 112919 1048 120719 0035 1cis-12-Dichloroethene ND H

304 523 ugSample 112919 1048 120719 0035 1cis-13-Dichloropropene ND H

304 292 ugSample 112919 1048 120719 0035 1Dibromomethane ND H

608 107 ugSample 112919 1048 120719 0035 1Dichlorodifluoromethane ND H

304 499 ugSample 112919 1048 120719 0035 1Ethylbenzene ND H

304 304 ugSample 112919 1048 120719 0035 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND H

304 803 ugSample 112919 1048 120719 0035 1Hexachlorobutadiene ND H

292 292 ugSample 112919 1048 120719 0035 1HFPO dimer methyl ester as

HFPO-DA

ND H

304 426 ugSample 112919 1048 120719 0035 1Isopropylbenzene ND H

608 499 ugSample 112919 1048 120719 0035 1mp-Xylene ND H

304 195 ugSample 112919 1048 120719 0035 1Methylene Chloride ND H

304 146 ugSample 112919 1048 120719 0035 1Naphthalene ND H

304 778 ugSample 112919 1048 120719 0035 1n-Butylbenzene ND H

304 657 ugSample 112919 1048 120719 0035 1n-Propylbenzene ND H

304 316 ugSample 112919 1048 120719 0035 1o-Xylene ND H

304 596 ugSample 112919 1048 120719 0035 1sec-Butylbenzene ND H

304 657 ugSample 112919 1048 120719 0035 1Styrene ND H

304 535 ugSample 112919 1048 120719 0035 1tert-Butylbenzene ND H

304 401 ugSample 112919 1048 120719 0035 1Tetrachloroethene ND H

304 559 ugSample 112919 1048 120719 0035 1Toluene ND H

304 316 ugSample 112919 1048 120719 0035 1trans-12-Dichloroethene ND H

304 107 ugSample 112919 1048 120719 0035 1trans-13-Dichloropropene ND H

304 219 ugSample 112919 1048 120719 0035 1Trichloroethene ND H

608 584 ugSample 112919 1048 120719 0035 1Trichlorofluoromethane ND H

608 146 ugSample 112919 1048 120719 0035 1Vinyl chloride ND H

Butanoic acid heptafluoro- sodium

salt

484 T H J N ugSample 113 2218-54-4 112919 1048 120719 0035 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120719 0035112919 1048T H JUnknown 1700 ugSample 118

1120719 0035112919 1048T H J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-8316 ugSample 122

1120719 0035112919 1048T H J NCyclohexane 110-82-7432 ugSample 442

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1048 120719 0035 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 110 112919 1048 120719 0035 157 - 152

Dibromofluoromethane (Surr) 103 112919 1048 120719 0035 162 - 134

Toluene-d8 (Surr) 97 112919 1048 120719 0035 171 - 139

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-10Client Sample ID Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 3540 J 6490 3240 ugSample 112919 1048 121319 2006 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2680 1220 ugSample 112919 1048 121819 1215 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-11Client Sample ID Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND H 314 414 ugSample 112919 1048 120719 0059 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

627 627 ugSample 112919 1048 120719 0059 111133-Pentafluorobutane ND H

314 452 ugSample 112919 1048 120719 0059 1111-Trichloroethane ND H

627 124 ugSample 112919 1048 120719 0059 1111-Trifluoro-22-dichloroethane ND H

627 627 ugSample 112919 1048 120719 0059 1111-Trifluoroethane ND H

314 602 ugSample 112919 1048 120719 0059 11122-Tetrachloroethane ND H

627 351 ugSample 112919 1048 120719 0059 1112-Trichloro-122-trifluoroethane ND H

627 627 ugSample 112919 1048 120719 0059 1112-trichloro-1-fluoroethane ND H

314 326 ugSample 112919 1048 120719 0059 1112-Trichloroethane ND H

627 314 ugSample 112919 1048 120719 0059 111-Dichloro-1-fluoroethane ND H

627 627 ugSample 112919 1048 120719 0059 111-dichloro-22-difluoroethane ND H

627 627 ugSample 112919 1048 120719 0059 111-dichloro-22-difluoroethene ND H

314 376 ugSample 112919 1048 120719 0059 111-Dichloroethane ND H

314 464 ugSample 112919 1048 120719 0059 111-Dichloroethene ND H

314 339 ugSample 112919 1048 120719 0059 111-Dichloropropene ND H

627 627 ugSample 112919 1048 120719 0059 111-Difluoroethene ND H

627 627 ugSample 112919 1048 120719 0059 1122-trichloro-11-difluoroethane ND H

314 100 ugSample 112919 1048 120719 0059 1123-Trichlorobenzene ND H

314 778 ugSample 112919 1048 120719 0059 1123-Trichloropropane ND H

314 105 ugSample 112919 1048 120719 0059 1124-Trichlorobenzene ND H

314 653 ugSample 112919 1048 120719 0059 1124-Trimethylbenzene ND H

627 110 ugSample 112919 1048 120719 0059 112-Dibromo-3-Chloropropane ND H

314 414 ugSample 112919 1048 120719 0059 112-Dibromoethane (EDB) ND H

627 627 ugSample 112919 1048 120719 0059 112-dichloro-11-difluoroethane ND H

314 552 ugSample 112919 1048 120719 0059 112-Dichlorobenzene ND H

314 527 ugSample 112919 1048 120719 0059 112-Dichloroethane ND H

314 314 ugSample 112919 1048 120719 0059 112-Dichloropropane ND H

314 653 ugSample 112919 1048 120719 0059 1135-Trimethylbenzene ND H

314 540 ugSample 112919 1048 120719 0059 113-Dichlorobenzene ND H

314 351 ugSample 112919 1048 120719 0059 113-Dichloropropane ND H

314 627 ugSample 112919 1048 120719 0059 114-Dichlorobenzene ND H

627 640 ugSample 112919 1048 120719 0059 11-Chloro-11-difluoroethane ND H

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-11Client Sample ID Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

22-dichloro-11-difluoroethylmethyl

ether

ND H 627 627 ugSample 112919 1048 120719 0059 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

314 916 ugSample 112919 1048 120719 0059 122-Dichloropropane ND H

125 201 ugSample 112919 1048 120719 0059 12-Butanone (MEK) ND H

627 929 ugSample 112919 1048 120719 0059 12-chloro-111444-hexafluoro-2-but

ene

ND H

627 627 ugSample 112919 1048 120719 0059 12-Chloro-111-Trifluoroethane ND H

314 590 ugSample 112919 1048 120719 0059 12-Chlorotoluene ND H

125 289 ugSample 112919 1048 120719 0059 12-Hexanone ND H

274 274 ugSample 112919 1048 120719 0059 12-MTP as HFPO 609 H

314 653 ugSample 112919 1048 120719 0059 14-Chlorotoluene ND H

314 841 ugSample 112919 1048 120719 0059 14-Isopropyltoluene ND H

125 201 ugSample 112919 1048 120719 0059 14-Methyl-2-pentanone (MIBK) ND H

125 740 ugSample 112919 1048 120719 0059 1Acetone ND H

314 602 ugSample 112919 1048 120719 0059 1Benzene ND H

314 439 ugSample 112919 1048 120719 0059 1Bromobenzene ND H

314 703 ugSample 112919 1048 120719 0059 1Bromochloromethane ND H

314 540 ugSample 112919 1048 120719 0059 1Bromodichloromethane ND H

314 954 ugSample 112919 1048 120719 0059 1Bromoform ND H

627 364 ugSample 112919 1048 120719 0059 1Bromomethane ND H

314 778 ugSample 112919 1048 120719 0059 1Carbon disulfide ND H

314 414 ugSample 112919 1048 120719 0059 1Carbon tetrachloride ND H

916 916 ugSample 112919 1048 120719 0059 1Carbonyl Difluoride ND H

314 452 ugSample 112919 1048 120719 0059 1Chlorobenzene ND H

314 678 ugSample 112919 1048 120719 0059 1Chlorodibromomethane ND H

627 138 ugSample 112919 1048 120719 0059 1Chloroethane ND H

314 364 ugSample 112919 1048 120719 0059 1Chloroform ND H

627 261 ugSample 112919 1048 120719 0059 1Chloromethane ND H

314 251 ugSample 112919 1048 120719 0059 1cis-12-Dichloroethene ND H

314 540 ugSample 112919 1048 120719 0059 1cis-13-Dichloropropene ND H

314 301 ugSample 112919 1048 120719 0059 1Dibromomethane ND H

627 110 ugSample 112919 1048 120719 0059 1Dichlorodifluoromethane ND H

314 515 ugSample 112919 1048 120719 0059 1Ethylbenzene ND H

314 314 ugSample 112919 1048 120719 0059 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND H

314 828 ugSample 112919 1048 120719 0059 1Hexachlorobutadiene ND H

301 301 ugSample 112919 1048 120719 0059 1HFPO dimer methyl ester as

HFPO-DA

ND H

314 439 ugSample 112919 1048 120719 0059 1Isopropylbenzene ND H

627 515 ugSample 112919 1048 120719 0059 1mp-Xylene ND H

314 201 ugSample 112919 1048 120719 0059 1Methylene Chloride ND H

314 151 ugSample 112919 1048 120719 0059 1Naphthalene ND H

314 803 ugSample 112919 1048 120719 0059 1n-Butylbenzene ND H

314 678 ugSample 112919 1048 120719 0059 1n-Propylbenzene ND H

314 326 ugSample 112919 1048 120719 0059 1o-Xylene ND H

314 615 ugSample 112919 1048 120719 0059 1sec-Butylbenzene ND H

314 678 ugSample 112919 1048 120719 0059 1Styrene ND H

314 552 ugSample 112919 1048 120719 0059 1tert-Butylbenzene ND H

Eurofins TestAmerica Knoxville

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-11Client Sample ID Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Tetrachloroethene ND H 314 414 ugSample 112919 1048 120719 0059 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

314 577 ugSample 112919 1048 120719 0059 1Toluene ND H

314 326 ugSample 112919 1048 120719 0059 1trans-12-Dichloroethene ND H

314 110 ugSample 112919 1048 120719 0059 1trans-13-Dichloropropene ND H

314 226 ugSample 112919 1048 120719 0059 1Trichloroethene ND H

627 602 ugSample 112919 1048 120719 0059 1Trichlorofluoromethane ND H

627 151 ugSample 112919 1048 120719 0059 1Vinyl chloride ND H

Propene hexafluoro- 421 T H J N ugSample 113 116-15-4 112919 1048 120719 0059 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120719 0059112919 1048T H JUnknown 882 ugSample 118

12-Dichloroethane-d4 (Surr) 116 70 - 160 112919 1048 120719 0059 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1048 120719 0059 157 - 152

Dibromofluoromethane (Surr) 105 112919 1048 120719 0059 162 - 134

Toluene-d8 (Surr) 96 112919 1048 120719 0059 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine ND 6690 3350 ugSample 112919 1048 121319 2027 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2760 1250 ugSample 112919 1048 121819 1238 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-12Client Sample ID Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND H 307 406 ugSample 112919 1048 120719 0124 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

615 615 ugSample 112919 1048 120719 0124 111133-Pentafluorobutane ND H

307 443 ugSample 112919 1048 120719 0124 1111-Trichloroethane ND H

615 122 ugSample 112919 1048 120719 0124 1111-Trifluoro-22-dichloroethane ND H

615 615 ugSample 112919 1048 120719 0124 1111-Trifluoroethane ND H

307 590 ugSample 112919 1048 120719 0124 11122-Tetrachloroethane ND H

615 344 ugSample 112919 1048 120719 0124 1112-Trichloro-122-trifluoroethane ND H

615 615 ugSample 112919 1048 120719 0124 1112-trichloro-1-fluoroethane ND H

307 320 ugSample 112919 1048 120719 0124 1112-Trichloroethane ND H

615 307 ugSample 112919 1048 120719 0124 111-Dichloro-1-fluoroethane ND H

615 615 ugSample 112919 1048 120719 0124 111-dichloro-22-difluoroethane ND H

615 615 ugSample 112919 1048 120719 0124 111-dichloro-22-difluoroethene ND H

307 369 ugSample 112919 1048 120719 0124 111-Dichloroethane ND H

Eurofins TestAmerica Knoxville

12232019Page 40 of 89491

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-12Client Sample ID Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

11-Dichloroethene ND H 307 455 ugSample 112919 1048 120719 0124 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

307 332 ugSample 112919 1048 120719 0124 111-Dichloropropene ND H

615 615 ugSample 112919 1048 120719 0124 111-Difluoroethene ND H

615 615 ugSample 112919 1048 120719 0124 1122-trichloro-11-difluoroethane ND H

307 983 ugSample 112919 1048 120719 0124 1123-Trichlorobenzene ND H

307 762 ugSample 112919 1048 120719 0124 1123-Trichloropropane ND H

307 103 ugSample 112919 1048 120719 0124 1124-Trichlorobenzene ND H

307 639 ugSample 112919 1048 120719 0124 1124-Trimethylbenzene ND H

615 108 ugSample 112919 1048 120719 0124 112-Dibromo-3-Chloropropane ND H

307 406 ugSample 112919 1048 120719 0124 112-Dibromoethane (EDB) ND H

615 615 ugSample 112919 1048 120719 0124 112-dichloro-11-difluoroethane ND H

307 541 ugSample 112919 1048 120719 0124 112-Dichlorobenzene ND H

307 516 ugSample 112919 1048 120719 0124 112-Dichloroethane ND H

307 307 ugSample 112919 1048 120719 0124 112-Dichloropropane ND H

307 639 ugSample 112919 1048 120719 0124 1135-Trimethylbenzene ND H

307 529 ugSample 112919 1048 120719 0124 113-Dichlorobenzene ND H

307 344 ugSample 112919 1048 120719 0124 113-Dichloropropane ND H

307 615 ugSample 112919 1048 120719 0124 114-Dichlorobenzene ND H

615 627 ugSample 112919 1048 120719 0124 11-Chloro-11-difluoroethane ND H

615 615 ugSample 112919 1048 120719 0124 122-dichloro-11-difluoroethylmethyl

ether

ND H

307 897 ugSample 112919 1048 120719 0124 122-Dichloropropane ND H

123 197 ugSample 112919 1048 120719 0124 12-Butanone (MEK) ND H

615 910 ugSample 112919 1048 120719 0124 12-chloro-111444-hexafluoro-2-but

ene

ND H

615 615 ugSample 112919 1048 120719 0124 12-Chloro-111-Trifluoroethane ND H

307 578 ugSample 112919 1048 120719 0124 12-Chlorotoluene ND H

123 283 ugSample 112919 1048 120719 0124 12-Hexanone ND H

268 268 ugSample 112919 1048 120719 0124 12-MTP as HFPO 583 H

307 639 ugSample 112919 1048 120719 0124 14-Chlorotoluene ND H

307 824 ugSample 112919 1048 120719 0124 14-Isopropyltoluene ND H

123 197 ugSample 112919 1048 120719 0124 14-Methyl-2-pentanone (MIBK) ND H

123 725 ugSample 112919 1048 120719 0124 1Acetone ND H

307 590 ugSample 112919 1048 120719 0124 1Benzene ND H

307 430 ugSample 112919 1048 120719 0124 1Bromobenzene ND H

307 688 ugSample 112919 1048 120719 0124 1Bromochloromethane ND H

307 529 ugSample 112919 1048 120719 0124 1Bromodichloromethane ND H

307 934 ugSample 112919 1048 120719 0124 1Bromoform ND H

615 356 ugSample 112919 1048 120719 0124 1Bromomethane ND H

307 762 ugSample 112919 1048 120719 0124 1Carbon disulfide ND H

307 406 ugSample 112919 1048 120719 0124 1Carbon tetrachloride ND H

901 901 ugSample 112919 1048 120719 0124 1Carbonyl Difluoride ND H

307 443 ugSample 112919 1048 120719 0124 1Chlorobenzene ND H

307 664 ugSample 112919 1048 120719 0124 1Chlorodibromomethane ND H

615 135 ugSample 112919 1048 120719 0124 1Chloroethane ND H

307 356 ugSample 112919 1048 120719 0124 1Chloroform ND H

615 256 ugSample 112919 1048 120719 0124 1Chloromethane ND H

307 246 ugSample 112919 1048 120719 0124 1cis-12-Dichloroethene ND H

Eurofins TestAmerica Knoxville

12232019Page 41 of 89492

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-12Client Sample ID Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

cis-13-Dichloropropene ND H 307 529 ugSample 112919 1048 120719 0124 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

307 295 ugSample 112919 1048 120719 0124 1Dibromomethane ND H

615 108 ugSample 112919 1048 120719 0124 1Dichlorodifluoromethane ND H

307 504 ugSample 112919 1048 120719 0124 1Ethylbenzene ND H

307 307 ugSample 112919 1048 120719 0124 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND H

307 811 ugSample 112919 1048 120719 0124 1Hexachlorobutadiene ND H

294 294 ugSample 112919 1048 120719 0124 1HFPO dimer methyl ester as

HFPO-DA

ND H

307 430 ugSample 112919 1048 120719 0124 1Isopropylbenzene ND H

615 504 ugSample 112919 1048 120719 0124 1mp-Xylene ND H

307 197 ugSample 112919 1048 120719 0124 1Methylene Chloride ND H

307 148 ugSample 112919 1048 120719 0124 1Naphthalene ND H

307 787 ugSample 112919 1048 120719 0124 1n-Butylbenzene ND H

307 664 ugSample 112919 1048 120719 0124 1n-Propylbenzene ND H

307 320 ugSample 112919 1048 120719 0124 1o-Xylene ND H

307 602 ugSample 112919 1048 120719 0124 1sec-Butylbenzene ND H

307 664 ugSample 112919 1048 120719 0124 1Styrene ND H

307 541 ugSample 112919 1048 120719 0124 1tert-Butylbenzene ND H

307 406 ugSample 112919 1048 120719 0124 1Tetrachloroethene ND H

307 565 ugSample 112919 1048 120719 0124 1Toluene ND H

307 320 ugSample 112919 1048 120719 0124 1trans-12-Dichloroethene ND H

307 108 ugSample 112919 1048 120719 0124 1trans-13-Dichloropropene ND H

307 221 ugSample 112919 1048 120719 0124 1Trichloroethene ND H

615 590 ugSample 112919 1048 120719 0124 1Trichlorofluoromethane ND H

615 148 ugSample 112919 1048 120719 0124 1Vinyl chloride ND H

Propene hexafluoro- 333 T H J N ugSample 113 116-15-4 112919 1048 120719 0124 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120719 0124112919 1048T H JUnknown 498 ugSample 118

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1048 120719 0124 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 112919 1048 120719 0124 157 - 152

Dibromofluoromethane (Surr) 104 112919 1048 120719 0124 162 - 134

Toluene-d8 (Surr) 96 112919 1048 120719 0124 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 28100 6560 3280 ugSample 112919 1048 121319 2047 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2700 1230 ugSample 112919 1048 121819 1259 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Eurofins TestAmerica Knoxville

12232019Page 42 of 89493

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17461-1ProjectSite VEN Stack - MM-18

Method 8260B - Volatile Organic Compounds (GCMS)Prep MeOH Prep

2501112-Tetrachloroethane ugSample

Analyte UnitsMDLRL

0330

50011133-Pentafluorobutane ugSample0500

250111-Trichloroethane ugSample0360

500111-Trifluoro-22-dichloroethane ugSample0990

500111-Trifluoroethane ugSample0500

2501122-Tetrachloroethane ugSample0480

500112-Trichloro-122-trifluoroethane ugSample0280

500112-trichloro-1-fluoroethane ugSample0500

250112-Trichloroethane ugSample0260

50011-Dichloro-1-fluoroethane ugSample250

50011-dichloro-22-difluoroethane ugSample0500

50011-dichloro-22-difluoroethene ugSample0500

25011-Dichloroethane ugSample0300

25011-Dichloroethene ugSample0370

25011-Dichloropropene ugSample0270

50011-Difluoroethene ugSample500

500122-trichloro-11-difluoroethane ugSample0500

250123-Trichlorobenzene ugSample0800

250123-Trichloropropane ugSample0620

250124-Trichlorobenzene ugSample0840

250124-Trimethylbenzene ugSample0520

50012-Dibromo-3-Chloropropane ugSample0880

25012-Dibromoethane (EDB) ugSample0330

50012-dichloro-11-difluoroethane ugSample0500

25012-Dichlorobenzene ugSample0440

25012-Dichloroethane ugSample0420

25012-Dichloropropane ugSample0250

250135-Trimethylbenzene ugSample0520

25013-Dichlorobenzene ugSample0430

25013-Dichloropropane ugSample0280

25014-Dichlorobenzene ugSample0500

5001-Chloro-11-difluoroethane ugSample0510

50022-dichloro-11-difluoroethylmethyl ether ugSample0500

25022-Dichloropropane ugSample0730

1002-Butanone (MEK) ugSample160

5002-chloro-111444-hexafluoro-2-butene ugSample0740

5002-Chloro-111-Trifluoroethane ugSample0500

2502-Chlorotoluene ugSample0470

1002-Hexanone ugSample230

2502-MTP as HFPO ugSample250

2504-Chlorotoluene ugSample0520

2504-Isopropyltoluene ugSample0670

1004-Methyl-2-pentanone (MIBK) ugSample160

100Acetone ugSample590

250Benzene ugSample0480

250Bromobenzene ugSample0350

250Bromochloromethane ugSample0560

250Bromodichloromethane ugSample0430

250Bromoform ugSample0760

500Bromomethane ugSample290

250Carbon disulfide ugSample0620

250Carbon tetrachloride ugSample0330

Eurofins TestAmerica Knoxville

12232019Page 43 of 89494

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17461-1ProjectSite VEN Stack - MM-18

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)Prep MeOH Prep

100Carbonyl Difluoride ugSample

Analyte UnitsMDLRL

100

250Chlorobenzene ugSample0360

250Chlorodibromomethane ugSample0540

500Chloroethane ugSample110

250Chloroform ugSample0290

500Chloromethane ugSample208

250cis-12-Dichloroethene ugSample0200

250cis-13-Dichloropropene ugSample0430

250Dibromomethane ugSample0240

500Dichlorodifluoromethane ugSample0880

250Ethylbenzene ugSample0410

250Heptafluoropropyl 1222-tetrafluoroethyl ether ugSample250

250Hexachlorobutadiene ugSample0660

250HFPO dimer methyl ester as HFPO-DA ugSample250

250Isopropylbenzene ugSample0350

500mp-Xylene ugSample0410

250Methylene Chloride ugSample160

250Naphthalene ugSample120

250n-Butylbenzene ugSample0640

250n-Propylbenzene ugSample0540

250o-Xylene ugSample0260

250sec-Butylbenzene ugSample0490

250Styrene ugSample0540

250tert-Butylbenzene ugSample0440

250Tetrachloroethene ugSample0330

250Toluene ugSample0460

250trans-12-Dichloroethene ugSample0260

250trans-13-Dichloropropene ugSample0880

250Trichloroethene ugSample0180

500Trichlorofluoromethane ugSample0480

500Vinyl chloride ugSample120

Method 9056 - Anions Ion ChromatographyPrep MeOH Prep

110Hydrogen Fluoride ugSample

Analyte UnitsMDLRL

500

1000Total Fluorine ugSample500

Eurofins TestAmerica Knoxville

12232019Page 44 of 89495

ANALYTICAL REPORTJob Number 140-17557-1

Job Description VEN Stack - MM-18

Contract Number LBIO-67048

ForChemours Company FC LLC The

co AECOMSabre Building Suite 300

4051 Ogletown RoadNewark DE 19713

Attention Michael Aucoin

_____________________________________________

Approved for releaseCourtney M AdkinsProject Manager II12302019 639 AM

Courtney M Adkins Project Manager II5815 Middlebrook Pike Knoxville TN 37921

(865)291-3000 courtneyadkinstestamericainccom

12302019

This report may not be reproduced except in full and with written approval from the laboratory For questions please contact the Project Manager atthe e-mail address or telephone number listed on this page

The test results in this report relate only to the samples as received by the laboratory and will meet all requirements of the methodology with anyexceptions noted This report shall not be reproduced except in full without the express written approval of the laboratory All questions should bedirected to the Eurofins TestAmerica Project Manager

This report has been electronically signed and authorized by the signatory Electronic signature is intended to be the legally binding equivalent of atraditionally handwritten signature

Eurofins TestAmerica Knoxville

5815 Middlebrook Pike Knoxville TN 37921

Tel (865) 291-3000 Fax (865) 584-4315 wwwtestamericainccom

12302019Page 1 of 70696

Table of ContentsCover Title Page 1

Data Summaries 5

Definitions 5

Method Summary 6

Sample Summary 7

Case Narrative 8

QC Association 10

Client Sample Results 13

Default Detection Limits 28

Surrogate Summary 30

QC Sample Results 31

Chronicle 38

Certification Summary 44

Manual Integration Summary 45

Organic Sample Data 55

GCMS VOA 55

Method 8260B 55Method 8260B QC Summary 56Method 8260B Sample Data 71Standards Data 188

Method 8260B ICAL Data 188Method 8260B CCAL Data 290

Raw QC Data 362Method 8260B Tune Data 362Method 8260B Blank Data 382Method 8260B LCSLCSD Data 391

12302019Page 2 of 70697

Table of ContentsMethod 8260B MSMSD Data 403

Method 8260B Run Logs 411Method 8260B Prep Data 428

HPLCIC 431

Method 9056 431Method 9056 QC Summary 432Method 9056 Sample Data 437Standards Data 455

Method 9056 ICAL Data 455Method 9056 CCAL Data 482

Raw QC Data 511Method 9056 Blank Data 511Method 9056 LCSLCSD Data 532Method 9056 MSMSD Data 538

Method 9056 Run Logs 544Method 9056 Prep Data 549

Method 9056A Total Halogens 552Method 9056A Total Halogens QC Summary 553Method 9056A Total Halogens Sample Data 558Standards Data 576

Method 9056A Total Halogens ICAL Data 576Method 9056A Total Halogens CCAL Data 601

Raw QC Data 629Method 9056A Total Halogens Blank Data 629Method 9056A Total Halogens LCSLCSD Data 654Method 9056A Total Halogens MSMSD Data 660

12302019Page 3 of 70698

Table of ContentsMethod 9056A Total Halogens Run Logs 666Method 9056A Total Halogens Prep Data 680

Inorganic Sample Data 685

General Chemistry Data 685

Gen Chem Cover Page 686

Gen Chem Sample Data 687

Gen Chem QC Data 693Gen Chem ICVCCV 693Gen Chem Duplicates 694

Gen Chem MDL 695

Gen Chem Analysis Run Log 696

Gen Chem Prep Data 697

Gen Chem Raw Data 698

Shipping and Receiving Documents 699

Client Chain of Custody 700

12302019Page 4 of 70699

DefinitionsGlossaryJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Qualifiers

GCMS VOAQualifier Description

LCS or LCSD is outside acceptance limits

Qualifier

4 MS MSD The analyte present in the original sample is greater than 4 times the matrix spike concentration therefore control limits are not

applicableE Result exceeded calibration range

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

GCMS VOA TICsQualifier Description

J Indicates an Estimated Value for TICs

Qualifier

N Presumptive evidence of material

T Result is a tentatively identified compound (TIC) and an estimated value

HPLCICQualifier Description

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

Qualifier

General ChemistryQualifier Description

HF Field parameter with a holding time of 15 minutes Test performed by laboratory at clients request

Qualifier

GlossaryThese commonly used abbreviations may or may not be present in this report

curren Listed under the D column to designate that the result is reported on a dry weight basis

Abbreviation

R Percent Recovery

CFL Contains Free Liquid

CNF Contains No Free Liquid

DER Duplicate Error Ratio (normalized absolute difference)

Dil Fac Dilution Factor

DL Detection Limit (DoDDOE)

DL RA RE IN Indicates a Dilution Re-analysis Re-extraction or additional Initial metalsanion analysis of the sample

DLC Decision Level Concentration (Radiochemistry)

EDL Estimated Detection Limit (Dioxin)

LOD Limit of Detection (DoDDOE)

LOQ Limit of Quantitation (DoDDOE)

MDA Minimum Detectable Activity (Radiochemistry)

MDC Minimum Detectable Concentration (Radiochemistry)

MDL Method Detection Limit

ML Minimum Level (Dioxin)

NC Not Calculated

ND Not Detected at the reporting limit (or MDL or EDL if shown)

PQL Practical Quantitation Limit

QC Quality Control

RER Relative Error Ratio (Radiochemistry)

RL Reporting Limit or Requested Limit (Radiochemistry)

RPD Relative Percent Difference a measure of the relative difference between two points

TEF Toxicity Equivalent Factor (Dioxin)

TEQ Toxicity Equivalent Quotient (Dioxin)

Eurofins TestAmerica Knoxville

12302019Page 5 of 706100

Method SummaryJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Method Method Description LaboratoryProtocol

SW8468260B Volatile Organic Compounds (GCMS) TAL KNX

SW8469056 Anions Ion Chromatography TAL KNX

SW8469041A pH TAL KNX

SW8465050 Bomb Preparation Method for Solid Waste TAL KNX

NoneMeOH Prep Methanol Impinger Preparation TAL KNX

Protocol References

None = None

SW846 = Test Methods For Evaluating Solid Waste PhysicalChemical Methods Third Edition November 1986 And Its Updates

Laboratory References

TAL KNX = Eurofins TestAmerica Knoxville 5815 Middlebrook Pike Knoxville TN 37921 TEL (865)291-3000

Eurofins TestAmerica Knoxville

12302019Page 6 of 706101

Sample SummaryJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID Client Sample ID ReceivedCollectedMatrix Asset ID

140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 Air 120419 0000 120719 0800

140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 Air 120419 0000 120719 0800

140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 Air 120419 0000 120719 0800

140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 Air 120419 0000 120719 0800

140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 Air 120419 0000 120719 0800

140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 Air 120419 0000 120719 0800

Eurofins TestAmerica Knoxville

12302019Page 7 of 706102

Job Narrative140-17557-1

Receipt The samples were received on December 7 2019 at 800 AM the samples arrived in good condition properly preserved and where required on ice The temperatures of the 2 coolers at receipt time were 09ordm C and 14ordm C

GCMS VOA Impinger Sample Preparation and Analysis Impinger samples were analyzed for the volatile organic target analytes by purge and trap GCMS using Eurofins TestAmerica Knoxville standard operating procedure KNOX-MS-0015 based on the following method

middot SW-846 8260B ldquoVolatile Organic Compounds by Gas Chromatography Mass Spectrometry (GCMS)rdquo

Each sample is prepared by adding a known amount of sample to the purge water in a purge and trap vessel and spiking with internal standards surrogates and matrix spike analytes (as needed) Volatile compounds are introduced into the gas chromatograph by the purge and trap method The components are separated using the chromatograph and detected using a mass spectrometer which provides both qualitative and quantitative information

Impinger sample results were calculated using the following equation

Concentration μgsample = (C times DF times W times Vt) (Va)WhereC = On-column concentration μgLDF = Dilution factorW = Volume of water purged LVt = Methanol extract final volume μL Va = Volume of extract analyzed microL

Method 8260B (LCS 140-359561-A) for analytical batch 140-35964 recovered below marginal exceedance limits for Trichlorofluoromethane This is an ongoing instrument issue with LCS recoveries for this analyte The project manager approved moving forward with analysis for the current job

Method 8260B The following samples were diluted to bring the concentration of target analytes within the calibration range Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 (140-17557-1) Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 (140-17557-2) Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 (140-17557-3) Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 (140-17557-4) Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 (140-17557-5) and Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 (140-17557-6) Elevated reporting limits (RLs) are provided

Method 8260B The continuing calibration verification (CCV) associated with batch 140-35990 recovered above the upper control limit for Chloroethane The samples associated with this CCV were non-detects for the affected analytes therefore the data have been reported

No additional analytical or quality issues were noted other than those described above or in the DefinitionsGlossary page

General Chemistry Total Halogens The samples were prepared for total fluorine chlorine bromine andor iodine using SOP number KNOX-WC-0016 (based on ASTM Method E442 and SW-846 Method 5050) The sample is oxidized by combustion in an oxygen flask at atmospheric pressure or a bomb containing oxygen under pressure The liberated halogen compounds are absorbed primarily as halides in a sodium carbonatesodium bicarbonate buffer solution The combustion products are collected by repeated rinsing of the combustion apparatus and analyzed by ion chromatography in accordance with SOP KNOX-WC-0005 (based on SW-846 Method 9056) The results are calculated using the following equation

C = [(Ccom times Vcom) W] times 1000 gKg

WhereC = Concentration of analyte in the sample mgKgCcom = Concentration of analyte in the combustate mgLVcom = Total volume of combustate LW = Weight of sample combusted g

Anions in Impinger Solutions Anions are is determined in accordance to SOP KNOX-WC-0005 (based on methods 3000A and 9056) The samples were diluted a minimum of 120 in ion chromatography solvent buffer solution to reduce the methanol concentration before injection Buffer concentrate was added until the pH was 10 Samples are diluted with ion chromatography eluate solution to bring the

12302019Page 8 of 706103

concentrations within the calibration range when necessary Higher dilutions are applied as necessary

An aliquot of prepared sample is introduced into the ion chromatograph Anions are identified based on their retention times as compared to those of known standards Quantification is accomplished by measuring the peak response and comparing it to a calibration curve generated from known standards

The pH of all samples were tested with pH paper QC consisted of initial CCV and LCS which also serve as initial calibration duplicate analysis for every 10 samples and closing CCV A certified thermometer was used to check the ambient temperature

No additional analytical or quality issues were noted other than those described above or in the DefinitionsGlossary page

12302019Page 9 of 706104

QC Association SummaryJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

GCMS VOA

Prep Batch 35956

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air MeOH Prep140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17557-2 - DL Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17557-3 - DL Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air MeOH Prep140-17557-4 - DL Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air MeOH Prep140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air MeOH Prep140-17557-6 - DL Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH Prep140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH PrepMB 140-359562-A Method Blank TotalNA

Air MeOH PrepLCS 140-359561-A Lab Control Sample TotalNA

Air MeOH Prep140-17557-2 MS Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17557-2 MSD Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Analysis Batch 35964

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8260B 35956140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 8260B 35956140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 8260B 35956140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 8260B 35956140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 8260B 35956140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 8260B 35956140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 8260B 35956MB 140-359562-A Method Blank TotalNA

Air 8260B 35956LCS 140-359561-A Lab Control Sample TotalNA

Air 8260B 35956LCS 140-359561-A Lab Control Sample TotalNA

Analysis Batch 35990

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8260B 35956140-17557-2 - DL Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 8260B 35956140-17557-3 - DL Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 8260B 35956140-17557-4 - DL Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 8260B 35956140-17557-6 - DL Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 8260B 35956140-17557-2 MS Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 8260B 35956140-17557-2 MSD Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

HPLCIC

Prep Batch 35956

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air MeOH Prep140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air MeOH Prep140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air MeOH Prep140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH PrepMB 140-3595619-A Method Blank TotalNA

Air MeOH PrepMB 140-3595619-B Method Blank TotalNA

Air MeOH PrepLCS 140-3595620-A Lab Control Sample TotalNA

Air MeOH PrepLCS 140-3595620-B Lab Control Sample TotalNA

Air MeOH PrepLCSD 140-3595621-A Lab Control Sample Dup TotalNA

Eurofins TestAmerica Knoxville

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QC Association SummaryJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

HPLCIC (Continued)

Prep Batch 35956 (Continued)

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH PrepLCSD 140-3595621-B Lab Control Sample Dup TotalNA

Air MeOH Prep140-17557-2 MS Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17557-2 MSD Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Prep Batch 35976

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 5050 35956140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 5050 35956140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 5050 35956140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 5050 35956140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 5050 35956140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 5050 35956140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 5050 35956MB 140-3595619-B Method Blank TotalNA

Air 5050 35956LCS 140-3595620-B Lab Control Sample TotalNA

Air 5050 35956LCSD 140-3595621-B Lab Control Sample Dup TotalNA

Air 5050 35956140-17557-2 MS Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 5050 35956140-17557-2 MSD Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Analysis Batch 36294

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35976140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9056 35976140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35976140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9056 35976140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9056 35976140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9056 35976140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9056 35976MB 140-3595619-B Method Blank TotalNA

Air 9056 35976LCS 140-3595620-B Lab Control Sample TotalNA

Air 9056 35976LCSD 140-3595621-B Lab Control Sample Dup TotalNA

Air 9056 35976140-17557-2 MS Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35976140-17557-2 MSD Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Analysis Batch 36325

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35956140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9056 35956140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35956140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9056 35956140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9056 35956140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9056 35956140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9056 35956MB 140-3595619-A Method Blank TotalNA

Air 9056 35956LCS 140-3595620-A Lab Control Sample TotalNA

Air 9056 35956LCSD 140-3595621-A Lab Control Sample Dup TotalNA

Air 9056 35956140-17557-2 MS Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35956140-17557-2 MSD Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

General Chemistry

Analysis Batch 36156

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9041A140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Eurofins TestAmerica Knoxville

12302019Page 11 of 706106

QC Association SummaryJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

General Chemistry (Continued)

Analysis Batch 36156 (Continued)

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9041A140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9041A140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9041A140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9041A140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9041A140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9041ALCS 140-361562 Lab Control Sample TotalNA

Air 9041A140-17557-1 DU Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Eurofins TestAmerica Knoxville

12302019Page 12 of 706107

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-1Client Sample ID Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 315 415 ugSample 121019 0947 121019 2258 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

629 629 ugSample 121019 0947 121019 2258 111133-Pentafluorobutane ND

315 453 ugSample 121019 0947 121019 2258 1111-Trichloroethane ND

629 125 ugSample 121019 0947 121019 2258 1111-Trifluoro-22-dichloroethane ND

629 629 ugSample 121019 0947 121019 2258 1111-Trifluoroethane ND

315 604 ugSample 121019 0947 121019 2258 11122-Tetrachloroethane ND

629 352 ugSample 121019 0947 121019 2258 1112-Trichloro-122-trifluoroethane ND

629 629 ugSample 121019 0947 121019 2258 1112-trichloro-1-fluoroethane ND

315 327 ugSample 121019 0947 121019 2258 1112-Trichloroethane ND

629 315 ugSample 121019 0947 121019 2258 111-Dichloro-1-fluoroethane ND

629 629 ugSample 121019 0947 121019 2258 111-dichloro-22-difluoroethane ND

629 629 ugSample 121019 0947 121019 2258 111-dichloro-22-difluoroethene ND

315 378 ugSample 121019 0947 121019 2258 111-Dichloroethane ND

315 466 ugSample 121019 0947 121019 2258 111-Dichloroethene ND

315 340 ugSample 121019 0947 121019 2258 111-Dichloropropene ND

629 629 ugSample 121019 0947 121019 2258 111-Difluoroethene ND

629 629 ugSample 121019 0947 121019 2258 1122-trichloro-11-difluoroethane ND

315 101 ugSample 121019 0947 121019 2258 1123-Trichlorobenzene ND

315 780 ugSample 121019 0947 121019 2258 1123-Trichloropropane ND

315 106 ugSample 121019 0947 121019 2258 1124-Trichlorobenzene ND

315 654 ugSample 121019 0947 121019 2258 1124-Trimethylbenzene ND

629 111 ugSample 121019 0947 121019 2258 112-Dibromo-3-Chloropropane ND

315 415 ugSample 121019 0947 121019 2258 112-Dibromoethane (EDB) ND

629 629 ugSample 121019 0947 121019 2258 112-dichloro-11-difluoroethane ND

315 554 ugSample 121019 0947 121019 2258 112-Dichlorobenzene ND

315 529 ugSample 121019 0947 121019 2258 112-Dichloroethane ND

315 315 ugSample 121019 0947 121019 2258 112-Dichloropropane ND

315 654 ugSample 121019 0947 121019 2258 1135-Trimethylbenzene ND

315 541 ugSample 121019 0947 121019 2258 113-Dichlorobenzene ND

315 352 ugSample 121019 0947 121019 2258 113-Dichloropropane ND

315 629 ugSample 121019 0947 121019 2258 114-Dichlorobenzene ND

629 642 ugSample 121019 0947 121019 2258 11-Chloro-11-difluoroethane ND

629 629 ugSample 121019 0947 121019 2258 122-dichloro-11-difluoroethylmethyl

ether

ND

315 919 ugSample 121019 0947 121019 2258 122-Dichloropropane ND

126 201 ugSample 121019 0947 121019 2258 12-Butanone (MEK) ND

629 931 ugSample 121019 0947 121019 2258 12-chloro-111444-hexafluoro-2-but

ene

ND

629 629 ugSample 121019 0947 121019 2258 12-Chloro-111-Trifluoroethane ND

315 592 ugSample 121019 0947 121019 2258 12-Chlorotoluene ND

126 289 ugSample 121019 0947 121019 2258 12-Hexanone ND

275 275 ugSample 121019 0947 121019 2258 12-MTP as HFPO 1460

315 654 ugSample 121019 0947 121019 2258 14-Chlorotoluene ND

315 843 ugSample 121019 0947 121019 2258 14-Isopropyltoluene ND

126 201 ugSample 121019 0947 121019 2258 14-Methyl-2-pentanone (MIBK) ND

126 743 ugSample 121019 0947 121019 2258 1Acetone ND

315 604 ugSample 121019 0947 121019 2258 1Benzene ND

315 441 ugSample 121019 0947 121019 2258 1Bromobenzene ND

Eurofins TestAmerica Knoxville

12302019Page 13 of 706108

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-1Client Sample ID Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromochloromethane ND 315 705 ugSample 121019 0947 121019 2258 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

315 541 ugSample 121019 0947 121019 2258 1Bromodichloromethane ND

315 957 ugSample 121019 0947 121019 2258 1Bromoform ND

629 365 ugSample 121019 0947 121019 2258 1Bromomethane ND

315 780 ugSample 121019 0947 121019 2258 1Carbon disulfide ND

315 415 ugSample 121019 0947 121019 2258 1Carbon tetrachloride ND

923 923 ugSample 121019 0947 121019 2258 1Carbonyl Difluoride ND

315 453 ugSample 121019 0947 121019 2258 1Chlorobenzene ND

315 680 ugSample 121019 0947 121019 2258 1Chlorodibromomethane ND

629 138 ugSample 121019 0947 121019 2258 1Chloroethane ND

315 365 ugSample 121019 0947 121019 2258 1Chloroform ND

629 262 ugSample 121019 0947 121019 2258 1Chloromethane ND

315 252 ugSample 121019 0947 121019 2258 1cis-12-Dichloroethene ND

315 541 ugSample 121019 0947 121019 2258 1cis-13-Dichloropropene ND

315 302 ugSample 121019 0947 121019 2258 1Dibromomethane ND

629 111 ugSample 121019 0947 121019 2258 1Dichlorodifluoromethane ND

315 516 ugSample 121019 0947 121019 2258 1Ethylbenzene ND

315 315 ugSample 121019 0947 121019 2258 1Heptafluoropropyl 1222-tetrafluoroethyl ether

149

315 831 ugSample 121019 0947 121019 2258 1Hexachlorobutadiene ND

302 302 ugSample 121019 0947 121019 2258 1HFPO dimer methyl ester as

HFPO-DA

ND

315 441 ugSample 121019 0947 121019 2258 1Isopropylbenzene ND

629 516 ugSample 121019 0947 121019 2258 1mp-Xylene ND

315 201 ugSample 121019 0947 121019 2258 1Methylene Chloride 373

315 151 ugSample 121019 0947 121019 2258 1Naphthalene ND

315 806 ugSample 121019 0947 121019 2258 1n-Butylbenzene ND

315 680 ugSample 121019 0947 121019 2258 1n-Propylbenzene ND

315 327 ugSample 121019 0947 121019 2258 1o-Xylene ND

315 617 ugSample 121019 0947 121019 2258 1sec-Butylbenzene ND

315 680 ugSample 121019 0947 121019 2258 1Styrene ND

315 554 ugSample 121019 0947 121019 2258 1tert-Butylbenzene ND

315 415 ugSample 121019 0947 121019 2258 1Tetrachloroethene ND

315 579 ugSample 121019 0947 121019 2258 1Toluene ND

315 327 ugSample 121019 0947 121019 2258 1trans-12-Dichloroethene ND

315 111 ugSample 121019 0947 121019 2258 1trans-13-Dichloropropene ND

315 227 ugSample 121019 0947 121019 2258 1Trichloroethene ND

629 604 ugSample 121019 0947 121019 2258 1Trichlorofluoromethane ND

629 151 ugSample 121019 0947 121019 2258 1Vinyl chloride ND

Unknown 318 T J ugSample 113 121019 0947 121019 2258 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1121019 2258121019 0947T JUnknown 626 ugSample 118

12-Dichloroethane-d4 (Surr) 121 70 - 160 121019 0947 121019 2258 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 106 121019 0947 121019 2258 157 - 152

Dibromofluoromethane (Surr) 109 121019 0947 121019 2258 162 - 134

Eurofins TestAmerica Knoxville

12302019Page 14 of 706109

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-1Client Sample ID Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)

Toluene-d8 (Surr) 89 71 - 139 121019 0947 121019 2258 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 98200 13400 6710 ugSample 121019 0947 122319 1201 2

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2770 1260 ugSample 121019 0947 122419 0117 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 40 HF SU 121719 1337 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17557-2Client Sample ID Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 305 402 ugSample 121019 0947 121019 2234 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

610 610 ugSample 121019 0947 121019 2234 111133-Pentafluorobutane ND

305 439 ugSample 121019 0947 121019 2234 1111-Trichloroethane ND

610 121 ugSample 121019 0947 121019 2234 1111-Trifluoro-22-dichloroethane ND

610 610 ugSample 121019 0947 121019 2234 1111-Trifluoroethane ND

305 585 ugSample 121019 0947 121019 2234 11122-Tetrachloroethane ND

610 341 ugSample 121019 0947 121019 2234 1112-Trichloro-122-trifluoroethane ND

610 610 ugSample 121019 0947 121019 2234 1112-trichloro-1-fluoroethane ND

305 317 ugSample 121019 0947 121019 2234 1112-Trichloroethane ND

610 305 ugSample 121019 0947 121019 2234 111-Dichloro-1-fluoroethane ND

610 610 ugSample 121019 0947 121019 2234 111-dichloro-22-difluoroethane ND

610 610 ugSample 121019 0947 121019 2234 111-dichloro-22-difluoroethene ND

305 366 ugSample 121019 0947 121019 2234 111-Dichloroethane ND

305 451 ugSample 121019 0947 121019 2234 111-Dichloroethene ND

305 329 ugSample 121019 0947 121019 2234 111-Dichloropropene ND

610 610 ugSample 121019 0947 121019 2234 111-Difluoroethene ND

610 610 ugSample 121019 0947 121019 2234 1122-trichloro-11-difluoroethane ND

305 976 ugSample 121019 0947 121019 2234 1123-Trichlorobenzene ND

305 756 ugSample 121019 0947 121019 2234 1123-Trichloropropane ND

305 102 ugSample 121019 0947 121019 2234 1124-Trichlorobenzene ND

305 634 ugSample 121019 0947 121019 2234 1124-Trimethylbenzene ND

610 107 ugSample 121019 0947 121019 2234 112-Dibromo-3-Chloropropane ND

305 402 ugSample 121019 0947 121019 2234 112-Dibromoethane (EDB) ND

610 610 ugSample 121019 0947 121019 2234 112-dichloro-11-difluoroethane ND

305 537 ugSample 121019 0947 121019 2234 112-Dichlorobenzene ND

305 512 ugSample 121019 0947 121019 2234 112-Dichloroethane ND

305 305 ugSample 121019 0947 121019 2234 112-Dichloropropane ND

305 634 ugSample 121019 0947 121019 2234 1135-Trimethylbenzene ND

Eurofins TestAmerica Knoxville

12302019Page 15 of 706110

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-2Client Sample ID Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

13-Dichlorobenzene ND 305 524 ugSample 121019 0947 121019 2234 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

305 341 ugSample 121019 0947 121019 2234 113-Dichloropropane ND

305 610 ugSample 121019 0947 121019 2234 114-Dichlorobenzene ND

610 622 ugSample 121019 0947 121019 2234 11-Chloro-11-difluoroethane ND

610 610 ugSample 121019 0947 121019 2234 122-dichloro-11-difluoroethylmethyl

ether

ND

305 890 ugSample 121019 0947 121019 2234 122-Dichloropropane ND

122 195 ugSample 121019 0947 121019 2234 12-Butanone (MEK) ND

610 903 ugSample 121019 0947 121019 2234 12-chloro-111444-hexafluoro-2-but

ene

ND

610 610 ugSample 121019 0947 121019 2234 12-Chloro-111-Trifluoroethane ND

305 573 ugSample 121019 0947 121019 2234 12-Chlorotoluene ND

122 281 ugSample 121019 0947 121019 2234 12-Hexanone ND

266 266 ugSample 121019 0947 121019 2234 12-MTP as HFPO 2430 E

305 634 ugSample 121019 0947 121019 2234 14-Chlorotoluene ND

305 817 ugSample 121019 0947 121019 2234 14-Isopropyltoluene ND

122 195 ugSample 121019 0947 121019 2234 14-Methyl-2-pentanone (MIBK) ND

122 720 ugSample 121019 0947 121019 2234 1Acetone ND

305 585 ugSample 121019 0947 121019 2234 1Benzene ND

305 427 ugSample 121019 0947 121019 2234 1Bromobenzene ND

305 683 ugSample 121019 0947 121019 2234 1Bromochloromethane ND

305 524 ugSample 121019 0947 121019 2234 1Bromodichloromethane ND

305 927 ugSample 121019 0947 121019 2234 1Bromoform ND

610 354 ugSample 121019 0947 121019 2234 1Bromomethane ND

305 756 ugSample 121019 0947 121019 2234 1Carbon disulfide ND

305 402 ugSample 121019 0947 121019 2234 1Carbon tetrachloride ND

894 894 ugSample 121019 0947 121019 2234 1Carbonyl Difluoride ND

305 439 ugSample 121019 0947 121019 2234 1Chlorobenzene ND

305 659 ugSample 121019 0947 121019 2234 1Chlorodibromomethane ND

610 134 ugSample 121019 0947 121019 2234 1Chloroethane ND

305 354 ugSample 121019 0947 121019 2234 1Chloroform ND

610 254 ugSample 121019 0947 121019 2234 1Chloromethane ND

305 244 ugSample 121019 0947 121019 2234 1cis-12-Dichloroethene ND

305 524 ugSample 121019 0947 121019 2234 1cis-13-Dichloropropene ND

305 293 ugSample 121019 0947 121019 2234 1Dibromomethane ND

610 107 ugSample 121019 0947 121019 2234 1Dichlorodifluoromethane ND

305 500 ugSample 121019 0947 121019 2234 1Ethylbenzene ND

305 305 ugSample 121019 0947 121019 2234 1Heptafluoropropyl 1222-tetrafluoroethyl ether

953

305 805 ugSample 121019 0947 121019 2234 1Hexachlorobutadiene ND

293 293 ugSample 121019 0947 121019 2234 1HFPO dimer methyl ester as

HFPO-DA

ND

305 427 ugSample 121019 0947 121019 2234 1Isopropylbenzene ND

610 500 ugSample 121019 0947 121019 2234 1mp-Xylene ND

305 195 ugSample 121019 0947 121019 2234 1Methylene Chloride 211 J

305 146 ugSample 121019 0947 121019 2234 1Naphthalene ND

305 781 ugSample 121019 0947 121019 2234 1n-Butylbenzene ND

305 659 ugSample 121019 0947 121019 2234 1n-Propylbenzene ND

Eurofins TestAmerica Knoxville

12302019Page 16 of 706111

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-2Client Sample ID Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

o-Xylene ND 305 317 ugSample 121019 0947 121019 2234 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

305 598 ugSample 121019 0947 121019 2234 1sec-Butylbenzene ND

305 659 ugSample 121019 0947 121019 2234 1Styrene ND

305 537 ugSample 121019 0947 121019 2234 1tert-Butylbenzene ND

305 402 ugSample 121019 0947 121019 2234 1Tetrachloroethene ND

305 561 ugSample 121019 0947 121019 2234 1Toluene ND

305 317 ugSample 121019 0947 121019 2234 1trans-12-Dichloroethene ND

305 107 ugSample 121019 0947 121019 2234 1trans-13-Dichloropropene ND

305 220 ugSample 121019 0947 121019 2234 1Trichloroethene ND

610 585 ugSample 121019 0947 121019 2234 1Trichlorofluoromethane ND

610 146 ugSample 121019 0947 121019 2234 1Vinyl chloride ND

Unknown 596 T J ugSample 113 121019 0947 121019 2234 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1121019 2234121019 0947T JUnknown 1110 ugSample 118

1121019 2234121019 0947T JUnknown 351 ugSample 122

12-Dichloroethane-d4 (Surr) 121 70 - 160 121019 0947 121019 2234 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 107 121019 0947 121019 2234 157 - 152

Dibromofluoromethane (Surr) 106 121019 0947 121019 2234 162 - 134

Toluene-d8 (Surr) 89 121019 0947 121019 2234 171 - 139

Method 8260B - Volatile Organic Compounds (GCMS) - DLRL MDL

2-MTP as HFPO 2230 533 533 ugSample 121019 0947 121119 1629 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

12-Dichloroethane-d4 (Surr) 112 70 - 160 121019 0947 121119 1629 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 108 121019 0947 121119 1629 157 - 152

Dibromofluoromethane (Surr) 97 121019 0947 121119 1629 162 - 134

Toluene-d8 (Surr) 96 121019 0947 121119 1629 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 32600 6500 3250 ugSample 121019 0947 121919 2322 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2680 1220 ugSample 121019 0947 122419 0140 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 40 HF SU 121719 1337 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Eurofins TestAmerica Knoxville

12302019Page 17 of 706112

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-3Client Sample ID Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 304 401 ugSample 121019 0947 121019 2209 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

608 608 ugSample 121019 0947 121019 2209 111133-Pentafluorobutane ND

304 438 ugSample 121019 0947 121019 2209 1111-Trichloroethane ND

608 120 ugSample 121019 0947 121019 2209 1111-Trifluoro-22-dichloroethane ND

608 608 ugSample 121019 0947 121019 2209 1111-Trifluoroethane ND

304 583 ugSample 121019 0947 121019 2209 11122-Tetrachloroethane ND

608 340 ugSample 121019 0947 121019 2209 1112-Trichloro-122-trifluoroethane ND

608 608 ugSample 121019 0947 121019 2209 1112-trichloro-1-fluoroethane ND

304 316 ugSample 121019 0947 121019 2209 1112-Trichloroethane ND

608 304 ugSample 121019 0947 121019 2209 111-Dichloro-1-fluoroethane ND

608 608 ugSample 121019 0947 121019 2209 111-dichloro-22-difluoroethane ND

608 608 ugSample 121019 0947 121019 2209 111-dichloro-22-difluoroethene ND

304 365 ugSample 121019 0947 121019 2209 111-Dichloroethane ND

304 450 ugSample 121019 0947 121019 2209 111-Dichloroethene ND

304 328 ugSample 121019 0947 121019 2209 111-Dichloropropene ND

608 608 ugSample 121019 0947 121019 2209 111-Difluoroethene ND

608 608 ugSample 121019 0947 121019 2209 1122-trichloro-11-difluoroethane ND

304 972 ugSample 121019 0947 121019 2209 1123-Trichlorobenzene ND

304 753 ugSample 121019 0947 121019 2209 1123-Trichloropropane ND

304 102 ugSample 121019 0947 121019 2209 1124-Trichlorobenzene ND

304 632 ugSample 121019 0947 121019 2209 1124-Trimethylbenzene ND

608 107 ugSample 121019 0947 121019 2209 112-Dibromo-3-Chloropropane ND

304 401 ugSample 121019 0947 121019 2209 112-Dibromoethane (EDB) ND

608 608 ugSample 121019 0947 121019 2209 112-dichloro-11-difluoroethane ND

304 535 ugSample 121019 0947 121019 2209 112-Dichlorobenzene ND

304 510 ugSample 121019 0947 121019 2209 112-Dichloroethane ND

304 304 ugSample 121019 0947 121019 2209 112-Dichloropropane ND

304 632 ugSample 121019 0947 121019 2209 1135-Trimethylbenzene ND

304 523 ugSample 121019 0947 121019 2209 113-Dichlorobenzene ND

304 340 ugSample 121019 0947 121019 2209 113-Dichloropropane ND

304 608 ugSample 121019 0947 121019 2209 114-Dichlorobenzene ND

608 620 ugSample 121019 0947 121019 2209 11-Chloro-11-difluoroethane ND

608 608 ugSample 121019 0947 121019 2209 122-dichloro-11-difluoroethylmethyl

ether

ND

304 887 ugSample 121019 0947 121019 2209 122-Dichloropropane ND

122 194 ugSample 121019 0947 121019 2209 12-Butanone (MEK) ND

608 899 ugSample 121019 0947 121019 2209 12-chloro-111444-hexafluoro-2-but

ene

ND

608 608 ugSample 121019 0947 121019 2209 12-Chloro-111-Trifluoroethane ND

304 571 ugSample 121019 0947 121019 2209 12-Chlorotoluene ND

122 280 ugSample 121019 0947 121019 2209 12-Hexanone ND

266 266 ugSample 121019 0947 121019 2209 12-MTP as HFPO 2130 E

304 632 ugSample 121019 0947 121019 2209 14-Chlorotoluene ND

304 814 ugSample 121019 0947 121019 2209 14-Isopropyltoluene ND

122 194 ugSample 121019 0947 121019 2209 14-Methyl-2-pentanone (MIBK) ND

122 717 ugSample 121019 0947 121019 2209 1Acetone ND

304 583 ugSample 121019 0947 121019 2209 1Benzene ND

304 425 ugSample 121019 0947 121019 2209 1Bromobenzene ND

Eurofins TestAmerica Knoxville

12302019Page 18 of 706113

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-3Client Sample ID Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromochloromethane ND 304 681 ugSample 121019 0947 121019 2209 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

304 523 ugSample 121019 0947 121019 2209 1Bromodichloromethane ND

304 924 ugSample 121019 0947 121019 2209 1Bromoform ND

608 352 ugSample 121019 0947 121019 2209 1Bromomethane ND

304 753 ugSample 121019 0947 121019 2209 1Carbon disulfide ND

304 401 ugSample 121019 0947 121019 2209 1Carbon tetrachloride ND

894 894 ugSample 121019 0947 121019 2209 1Carbonyl Difluoride ND

304 438 ugSample 121019 0947 121019 2209 1Chlorobenzene ND

304 656 ugSample 121019 0947 121019 2209 1Chlorodibromomethane ND

608 134 ugSample 121019 0947 121019 2209 1Chloroethane ND

304 352 ugSample 121019 0947 121019 2209 1Chloroform ND

608 253 ugSample 121019 0947 121019 2209 1Chloromethane ND

304 243 ugSample 121019 0947 121019 2209 1cis-12-Dichloroethene ND

304 523 ugSample 121019 0947 121019 2209 1cis-13-Dichloropropene ND

304 292 ugSample 121019 0947 121019 2209 1Dibromomethane ND

608 107 ugSample 121019 0947 121019 2209 1Dichlorodifluoromethane ND

304 498 ugSample 121019 0947 121019 2209 1Ethylbenzene ND

304 304 ugSample 121019 0947 121019 2209 1Heptafluoropropyl 1222-tetrafluoroethyl ether

334

304 802 ugSample 121019 0947 121019 2209 1Hexachlorobutadiene ND

292 292 ugSample 121019 0947 121019 2209 1HFPO dimer methyl ester as

HFPO-DA

ND

304 425 ugSample 121019 0947 121019 2209 1Isopropylbenzene ND

608 498 ugSample 121019 0947 121019 2209 1mp-Xylene ND

304 194 ugSample 121019 0947 121019 2209 1Methylene Chloride 202 J

304 146 ugSample 121019 0947 121019 2209 1Naphthalene ND

304 778 ugSample 121019 0947 121019 2209 1n-Butylbenzene ND

304 656 ugSample 121019 0947 121019 2209 1n-Propylbenzene ND

304 316 ugSample 121019 0947 121019 2209 1o-Xylene ND

304 595 ugSample 121019 0947 121019 2209 1sec-Butylbenzene ND

304 656 ugSample 121019 0947 121019 2209 1Styrene ND

304 535 ugSample 121019 0947 121019 2209 1tert-Butylbenzene ND

304 401 ugSample 121019 0947 121019 2209 1Tetrachloroethene ND

304 559 ugSample 121019 0947 121019 2209 1Toluene ND

304 316 ugSample 121019 0947 121019 2209 1trans-12-Dichloroethene ND

304 107 ugSample 121019 0947 121019 2209 1trans-13-Dichloropropene ND

304 219 ugSample 121019 0947 121019 2209 1Trichloroethene ND

608 583 ugSample 121019 0947 121019 2209 1Trichlorofluoromethane ND

608 146 ugSample 121019 0947 121019 2209 1Vinyl chloride ND

Unknown 411 T J ugSample 113 121019 0947 121019 2209 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1121019 2209121019 0947T JUnknown 747 ugSample 118

12-Dichloroethane-d4 (Surr) 114 70 - 160 121019 0947 121019 2209 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 107 121019 0947 121019 2209 157 - 152

Dibromofluoromethane (Surr) 103 121019 0947 121019 2209 162 - 134

Eurofins TestAmerica Knoxville

12302019Page 19 of 706114

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-3Client Sample ID Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)

Toluene-d8 (Surr) 92 71 - 139 121019 0947 121019 2209 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Method 8260B - Volatile Organic Compounds (GCMS) - DLRL MDL

2-MTP as HFPO 1970 531 531 ugSample 121019 0947 121119 1653 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

12-Dichloroethane-d4 (Surr) 110 70 - 160 121019 0947 121119 1653 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 108 121019 0947 121119 1653 157 - 152

Dibromofluoromethane (Surr) 98 121019 0947 121119 1653 162 - 134

Toluene-d8 (Surr) 95 121019 0947 121119 1653 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 13600 6480 3240 ugSample 121019 0947 122019 0030 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2670 1220 ugSample 121019 0947 122419 0248 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 50 HF SU 121719 1337 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17557-4Client Sample ID Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 297 393 ugSample 121019 0947 121019 2145 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

595 595 ugSample 121019 0947 121019 2145 111133-Pentafluorobutane ND

297 428 ugSample 121019 0947 121019 2145 1111-Trichloroethane ND

595 118 ugSample 121019 0947 121019 2145 1111-Trifluoro-22-dichloroethane ND

595 595 ugSample 121019 0947 121019 2145 1111-Trifluoroethane ND

297 571 ugSample 121019 0947 121019 2145 11122-Tetrachloroethane ND

595 333 ugSample 121019 0947 121019 2145 1112-Trichloro-122-trifluoroethane ND

595 595 ugSample 121019 0947 121019 2145 1112-trichloro-1-fluoroethane ND

297 309 ugSample 121019 0947 121019 2145 1112-Trichloroethane ND

595 297 ugSample 121019 0947 121019 2145 111-Dichloro-1-fluoroethane ND

595 595 ugSample 121019 0947 121019 2145 111-dichloro-22-difluoroethane ND

595 595 ugSample 121019 0947 121019 2145 111-dichloro-22-difluoroethene ND

297 357 ugSample 121019 0947 121019 2145 111-Dichloroethane ND

297 440 ugSample 121019 0947 121019 2145 111-Dichloroethene ND

297 321 ugSample 121019 0947 121019 2145 111-Dichloropropene ND

595 595 ugSample 121019 0947 121019 2145 111-Difluoroethene ND

595 595 ugSample 121019 0947 121019 2145 1122-trichloro-11-difluoroethane ND

297 952 ugSample 121019 0947 121019 2145 1123-Trichlorobenzene ND

297 738 ugSample 121019 0947 121019 2145 1123-Trichloropropane ND

Eurofins TestAmerica Knoxville

12302019Page 20 of 706115

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-4Client Sample ID Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

124-Trichlorobenzene ND 297 100 ugSample 121019 0947 121019 2145 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

297 619 ugSample 121019 0947 121019 2145 1124-Trimethylbenzene ND

595 105 ugSample 121019 0947 121019 2145 112-Dibromo-3-Chloropropane ND

297 393 ugSample 121019 0947 121019 2145 112-Dibromoethane (EDB) ND

595 595 ugSample 121019 0947 121019 2145 112-dichloro-11-difluoroethane ND

297 524 ugSample 121019 0947 121019 2145 112-Dichlorobenzene ND

297 500 ugSample 121019 0947 121019 2145 112-Dichloroethane ND

297 297 ugSample 121019 0947 121019 2145 112-Dichloropropane ND

297 619 ugSample 121019 0947 121019 2145 1135-Trimethylbenzene ND

297 512 ugSample 121019 0947 121019 2145 113-Dichlorobenzene ND

297 333 ugSample 121019 0947 121019 2145 113-Dichloropropane ND

297 595 ugSample 121019 0947 121019 2145 114-Dichlorobenzene ND

595 607 ugSample 121019 0947 121019 2145 11-Chloro-11-difluoroethane ND

595 595 ugSample 121019 0947 121019 2145 122-dichloro-11-difluoroethylmethyl

ether

ND

297 869 ugSample 121019 0947 121019 2145 122-Dichloropropane ND

119 190 ugSample 121019 0947 121019 2145 12-Butanone (MEK) ND

595 881 ugSample 121019 0947 121019 2145 12-chloro-111444-hexafluoro-2-but

ene

ND

595 595 ugSample 121019 0947 121019 2145 12-Chloro-111-Trifluoroethane ND

297 559 ugSample 121019 0947 121019 2145 12-Chlorotoluene ND

119 274 ugSample 121019 0947 121019 2145 12-Hexanone ND

259 259 ugSample 121019 0947 121019 2145 12-MTP as HFPO 2560 E

297 619 ugSample 121019 0947 121019 2145 14-Chlorotoluene ND

297 797 ugSample 121019 0947 121019 2145 14-Isopropyltoluene ND

119 190 ugSample 121019 0947 121019 2145 14-Methyl-2-pentanone (MIBK) ND

119 702 ugSample 121019 0947 121019 2145 1Acetone ND

297 571 ugSample 121019 0947 121019 2145 1Benzene ND

297 416 ugSample 121019 0947 121019 2145 1Bromobenzene ND

297 666 ugSample 121019 0947 121019 2145 1Bromochloromethane ND

297 512 ugSample 121019 0947 121019 2145 1Bromodichloromethane ND

297 904 ugSample 121019 0947 121019 2145 1Bromoform ND

595 345 ugSample 121019 0947 121019 2145 1Bromomethane ND

297 738 ugSample 121019 0947 121019 2145 1Carbon disulfide ND

297 393 ugSample 121019 0947 121019 2145 1Carbon tetrachloride ND

872 872 ugSample 121019 0947 121019 2145 1Carbonyl Difluoride ND

297 428 ugSample 121019 0947 121019 2145 1Chlorobenzene ND

297 643 ugSample 121019 0947 121019 2145 1Chlorodibromomethane ND

595 131 ugSample 121019 0947 121019 2145 1Chloroethane ND

297 345 ugSample 121019 0947 121019 2145 1Chloroform ND

595 247 ugSample 121019 0947 121019 2145 1Chloromethane ND

297 238 ugSample 121019 0947 121019 2145 1cis-12-Dichloroethene ND

297 512 ugSample 121019 0947 121019 2145 1cis-13-Dichloropropene ND

297 286 ugSample 121019 0947 121019 2145 1Dibromomethane ND

595 105 ugSample 121019 0947 121019 2145 1Dichlorodifluoromethane ND

297 488 ugSample 121019 0947 121019 2145 1Ethylbenzene ND

297 297 ugSample 121019 0947 121019 2145 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

Eurofins TestAmerica Knoxville

12302019Page 21 of 706116

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-4Client Sample ID Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Hexachlorobutadiene ND 297 785 ugSample 121019 0947 121019 2145 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

285 285 ugSample 121019 0947 121019 2145 1HFPO dimer methyl ester as

HFPO-DA

ND

297 416 ugSample 121019 0947 121019 2145 1Isopropylbenzene ND

595 488 ugSample 121019 0947 121019 2145 1mp-Xylene ND

297 190 ugSample 121019 0947 121019 2145 1Methylene Chloride 200 J

297 143 ugSample 121019 0947 121019 2145 1Naphthalene ND

297 762 ugSample 121019 0947 121019 2145 1n-Butylbenzene ND

297 643 ugSample 121019 0947 121019 2145 1n-Propylbenzene ND

297 309 ugSample 121019 0947 121019 2145 1o-Xylene ND

297 583 ugSample 121019 0947 121019 2145 1sec-Butylbenzene ND

297 643 ugSample 121019 0947 121019 2145 1Styrene ND

297 524 ugSample 121019 0947 121019 2145 1tert-Butylbenzene ND

297 393 ugSample 121019 0947 121019 2145 1Tetrachloroethene ND

297 547 ugSample 121019 0947 121019 2145 1Toluene ND

297 309 ugSample 121019 0947 121019 2145 1trans-12-Dichloroethene ND

297 105 ugSample 121019 0947 121019 2145 1trans-13-Dichloropropene ND

297 214 ugSample 121019 0947 121019 2145 1Trichloroethene ND

595 571 ugSample 121019 0947 121019 2145 1Trichlorofluoromethane ND

595 143 ugSample 121019 0947 121019 2145 1Vinyl chloride ND

Butanoic acid heptafluoro- sodium

salt

545 T J N ugSample 113 2218-54-4 121019 0947 121019 2145 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1121019 2145121019 0947T J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-8761 ugSample 118

12-Dichloroethane-d4 (Surr) 118 70 - 160 121019 0947 121019 2145 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 110 121019 0947 121019 2145 157 - 152

Dibromofluoromethane (Surr) 107 121019 0947 121019 2145 162 - 134

Toluene-d8 (Surr) 91 121019 0947 121019 2145 171 - 139

Method 8260B - Volatile Organic Compounds (GCMS) - DLRL MDL

2-MTP as HFPO 2330 650 650 ugSample 121019 0947 121119 1718 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

12-Dichloroethane-d4 (Surr) 112 70 - 160 121019 0947 121119 1718 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 107 121019 0947 121119 1718 157 - 152

Dibromofluoromethane (Surr) 98 121019 0947 121119 1718 162 - 134

Toluene-d8 (Surr) 95 121019 0947 121119 1718 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 5730 J 6350 3170 ugSample 121019 0947 122019 0053 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2620 1190 ugSample 121019 0947 122419 0356 20Hydrogen Fluoride ND

Eurofins TestAmerica Knoxville

12302019Page 22 of 706117

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-4Client Sample ID Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

General ChemistryRL MDL

pH 50 HF SU 121719 1337 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17557-5Client Sample ID Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 310 409 ugSample 121019 0947 121019 2120 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

619 619 ugSample 121019 0947 121019 2120 111133-Pentafluorobutane ND

310 446 ugSample 121019 0947 121019 2120 1111-Trichloroethane ND

619 123 ugSample 121019 0947 121019 2120 1111-Trifluoro-22-dichloroethane ND

619 619 ugSample 121019 0947 121019 2120 1111-Trifluoroethane ND

310 595 ugSample 121019 0947 121019 2120 11122-Tetrachloroethane ND

619 347 ugSample 121019 0947 121019 2120 1112-Trichloro-122-trifluoroethane ND

619 619 ugSample 121019 0947 121019 2120 1112-trichloro-1-fluoroethane ND

310 322 ugSample 121019 0947 121019 2120 1112-Trichloroethane ND

619 310 ugSample 121019 0947 121019 2120 111-Dichloro-1-fluoroethane ND

619 619 ugSample 121019 0947 121019 2120 111-dichloro-22-difluoroethane ND

619 619 ugSample 121019 0947 121019 2120 111-dichloro-22-difluoroethene ND

310 372 ugSample 121019 0947 121019 2120 111-Dichloroethane ND

310 458 ugSample 121019 0947 121019 2120 111-Dichloroethene ND

310 334 ugSample 121019 0947 121019 2120 111-Dichloropropene ND

619 619 ugSample 121019 0947 121019 2120 111-Difluoroethene ND

619 619 ugSample 121019 0947 121019 2120 1122-trichloro-11-difluoroethane ND

310 991 ugSample 121019 0947 121019 2120 1123-Trichlorobenzene ND

310 768 ugSample 121019 0947 121019 2120 1123-Trichloropropane ND

310 104 ugSample 121019 0947 121019 2120 1124-Trichlorobenzene ND

310 644 ugSample 121019 0947 121019 2120 1124-Trimethylbenzene ND

619 109 ugSample 121019 0947 121019 2120 112-Dibromo-3-Chloropropane ND

310 409 ugSample 121019 0947 121019 2120 112-Dibromoethane (EDB) ND

619 619 ugSample 121019 0947 121019 2120 112-dichloro-11-difluoroethane ND

310 545 ugSample 121019 0947 121019 2120 112-Dichlorobenzene ND

310 520 ugSample 121019 0947 121019 2120 112-Dichloroethane ND

310 310 ugSample 121019 0947 121019 2120 112-Dichloropropane ND

310 644 ugSample 121019 0947 121019 2120 1135-Trimethylbenzene ND

310 533 ugSample 121019 0947 121019 2120 113-Dichlorobenzene ND

310 347 ugSample 121019 0947 121019 2120 113-Dichloropropane ND

310 619 ugSample 121019 0947 121019 2120 114-Dichlorobenzene ND

619 632 ugSample 121019 0947 121019 2120 11-Chloro-11-difluoroethane ND

619 619 ugSample 121019 0947 121019 2120 122-dichloro-11-difluoroethylmethyl

ether

ND

310 904 ugSample 121019 0947 121019 2120 122-Dichloropropane ND

124 198 ugSample 121019 0947 121019 2120 12-Butanone (MEK) ND

619 917 ugSample 121019 0947 121019 2120 12-chloro-111444-hexafluoro-2-but

ene

ND

Eurofins TestAmerica Knoxville

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Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-5Client Sample ID Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

2-Chloro-111-Trifluoroethane ND 619 619 ugSample 121019 0947 121019 2120 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

310 582 ugSample 121019 0947 121019 2120 12-Chlorotoluene ND

124 285 ugSample 121019 0947 121019 2120 12-Hexanone ND

271 271 ugSample 121019 0947 121019 2120 12-MTP as HFPO 2070

310 644 ugSample 121019 0947 121019 2120 14-Chlorotoluene ND

310 830 ugSample 121019 0947 121019 2120 14-Isopropyltoluene ND

124 198 ugSample 121019 0947 121019 2120 14-Methyl-2-pentanone (MIBK) ND

124 731 ugSample 121019 0947 121019 2120 1Acetone ND

310 595 ugSample 121019 0947 121019 2120 1Benzene ND

310 434 ugSample 121019 0947 121019 2120 1Bromobenzene ND

310 694 ugSample 121019 0947 121019 2120 1Bromochloromethane ND

310 533 ugSample 121019 0947 121019 2120 1Bromodichloromethane ND

310 941 ugSample 121019 0947 121019 2120 1Bromoform ND

619 359 ugSample 121019 0947 121019 2120 1Bromomethane ND

310 768 ugSample 121019 0947 121019 2120 1Carbon disulfide ND

310 409 ugSample 121019 0947 121019 2120 1Carbon tetrachloride ND

909 909 ugSample 121019 0947 121019 2120 1Carbonyl Difluoride ND

310 446 ugSample 121019 0947 121019 2120 1Chlorobenzene ND

310 669 ugSample 121019 0947 121019 2120 1Chlorodibromomethane ND

619 136 ugSample 121019 0947 121019 2120 1Chloroethane ND

310 359 ugSample 121019 0947 121019 2120 1Chloroform ND

619 258 ugSample 121019 0947 121019 2120 1Chloromethane ND

310 248 ugSample 121019 0947 121019 2120 1cis-12-Dichloroethene ND

310 533 ugSample 121019 0947 121019 2120 1cis-13-Dichloropropene ND

310 297 ugSample 121019 0947 121019 2120 1Dibromomethane ND

619 109 ugSample 121019 0947 121019 2120 1Dichlorodifluoromethane ND

310 508 ugSample 121019 0947 121019 2120 1Ethylbenzene ND

310 310 ugSample 121019 0947 121019 2120 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

310 818 ugSample 121019 0947 121019 2120 1Hexachlorobutadiene ND

297 297 ugSample 121019 0947 121019 2120 1HFPO dimer methyl ester as

HFPO-DA

ND

310 434 ugSample 121019 0947 121019 2120 1Isopropylbenzene ND

619 508 ugSample 121019 0947 121019 2120 1mp-Xylene ND

310 198 ugSample 121019 0947 121019 2120 1Methylene Chloride ND

310 149 ugSample 121019 0947 121019 2120 1Naphthalene ND

310 793 ugSample 121019 0947 121019 2120 1n-Butylbenzene ND

310 669 ugSample 121019 0947 121019 2120 1n-Propylbenzene ND

310 322 ugSample 121019 0947 121019 2120 1o-Xylene ND

310 607 ugSample 121019 0947 121019 2120 1sec-Butylbenzene ND

310 669 ugSample 121019 0947 121019 2120 1Styrene ND

310 545 ugSample 121019 0947 121019 2120 1tert-Butylbenzene ND

310 409 ugSample 121019 0947 121019 2120 1Tetrachloroethene ND

310 570 ugSample 121019 0947 121019 2120 1Toluene ND

310 322 ugSample 121019 0947 121019 2120 1trans-12-Dichloroethene ND

310 109 ugSample 121019 0947 121019 2120 1trans-13-Dichloropropene ND

310 223 ugSample 121019 0947 121019 2120 1Trichloroethene ND

619 595 ugSample 121019 0947 121019 2120 1Trichlorofluoromethane ND

Eurofins TestAmerica Knoxville

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Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-5Client Sample ID Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Vinyl chloride ND 619 149 ugSample 121019 0947 121019 2120 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Propene hexafluoro- 445 T J N ugSample 113 116-15-4 121019 0947 121019 2120 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1121019 2120121019 0947T JUnknown 454 ugSample 118

12-Dichloroethane-d4 (Surr) 117 70 - 160 121019 0947 121019 2120 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 108 121019 0947 121019 2120 157 - 152

Dibromofluoromethane (Surr) 105 121019 0947 121019 2120 162 - 134

Toluene-d8 (Surr) 91 121019 0947 121019 2120 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 5710 J 6610 3300 ugSample 121019 0947 122019 0116 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2730 1240 ugSample 121019 0947 122419 0419 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 50 HF SU 121719 1337 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17557-6Client Sample ID Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 301 397 ugSample 121019 0947 121019 2056 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

601 601 ugSample 121019 0947 121019 2056 111133-Pentafluorobutane ND

301 433 ugSample 121019 0947 121019 2056 1111-Trichloroethane ND

601 119 ugSample 121019 0947 121019 2056 1111-Trifluoro-22-dichloroethane ND

601 601 ugSample 121019 0947 121019 2056 1111-Trifluoroethane ND

301 577 ugSample 121019 0947 121019 2056 11122-Tetrachloroethane ND

601 337 ugSample 121019 0947 121019 2056 1112-Trichloro-122-trifluoroethane ND

601 601 ugSample 121019 0947 121019 2056 1112-trichloro-1-fluoroethane ND

301 313 ugSample 121019 0947 121019 2056 1112-Trichloroethane ND

601 301 ugSample 121019 0947 121019 2056 111-Dichloro-1-fluoroethane ND

601 601 ugSample 121019 0947 121019 2056 111-dichloro-22-difluoroethane ND

601 601 ugSample 121019 0947 121019 2056 111-dichloro-22-difluoroethene ND

301 361 ugSample 121019 0947 121019 2056 111-Dichloroethane ND

301 445 ugSample 121019 0947 121019 2056 111-Dichloroethene ND

301 325 ugSample 121019 0947 121019 2056 111-Dichloropropene ND

601 601 ugSample 121019 0947 121019 2056 111-Difluoroethene ND

601 601 ugSample 121019 0947 121019 2056 1122-trichloro-11-difluoroethane ND

301 962 ugSample 121019 0947 121019 2056 1123-Trichlorobenzene ND

301 745 ugSample 121019 0947 121019 2056 1123-Trichloropropane ND

Eurofins TestAmerica Knoxville

12302019Page 25 of 706120

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-6Client Sample ID Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

124-Trichlorobenzene ND 301 101 ugSample 121019 0947 121019 2056 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

301 625 ugSample 121019 0947 121019 2056 1124-Trimethylbenzene ND

601 106 ugSample 121019 0947 121019 2056 112-Dibromo-3-Chloropropane ND

301 397 ugSample 121019 0947 121019 2056 112-Dibromoethane (EDB) ND

601 601 ugSample 121019 0947 121019 2056 112-dichloro-11-difluoroethane ND

301 529 ugSample 121019 0947 121019 2056 112-Dichlorobenzene ND

301 505 ugSample 121019 0947 121019 2056 112-Dichloroethane ND

301 301 ugSample 121019 0947 121019 2056 112-Dichloropropane ND

301 625 ugSample 121019 0947 121019 2056 1135-Trimethylbenzene ND

301 517 ugSample 121019 0947 121019 2056 113-Dichlorobenzene ND

301 337 ugSample 121019 0947 121019 2056 113-Dichloropropane ND

301 601 ugSample 121019 0947 121019 2056 114-Dichlorobenzene ND

601 613 ugSample 121019 0947 121019 2056 11-Chloro-11-difluoroethane ND

601 601 ugSample 121019 0947 121019 2056 122-dichloro-11-difluoroethylmethyl

ether

ND

301 878 ugSample 121019 0947 121019 2056 122-Dichloropropane ND

120 192 ugSample 121019 0947 121019 2056 12-Butanone (MEK) ND

601 890 ugSample 121019 0947 121019 2056 12-chloro-111444-hexafluoro-2-but

ene

ND

601 601 ugSample 121019 0947 121019 2056 12-Chloro-111-Trifluoroethane ND

301 565 ugSample 121019 0947 121019 2056 12-Chlorotoluene ND

120 277 ugSample 121019 0947 121019 2056 12-Hexanone ND

263 263 ugSample 121019 0947 121019 2056 12-MTP as HFPO 2550 E

301 625 ugSample 121019 0947 121019 2056 14-Chlorotoluene ND

301 806 ugSample 121019 0947 121019 2056 14-Isopropyltoluene ND

120 192 ugSample 121019 0947 121019 2056 14-Methyl-2-pentanone (MIBK) ND

120 709 ugSample 121019 0947 121019 2056 1Acetone ND

301 577 ugSample 121019 0947 121019 2056 1Benzene ND

301 421 ugSample 121019 0947 121019 2056 1Bromobenzene ND

301 673 ugSample 121019 0947 121019 2056 1Bromochloromethane ND

301 517 ugSample 121019 0947 121019 2056 1Bromodichloromethane ND

301 914 ugSample 121019 0947 121019 2056 1Bromoform ND

601 349 ugSample 121019 0947 121019 2056 1Bromomethane ND

301 745 ugSample 121019 0947 121019 2056 1Carbon disulfide ND

301 397 ugSample 121019 0947 121019 2056 1Carbon tetrachloride ND

879 879 ugSample 121019 0947 121019 2056 1Carbonyl Difluoride ND

301 433 ugSample 121019 0947 121019 2056 1Chlorobenzene ND

301 649 ugSample 121019 0947 121019 2056 1Chlorodibromomethane ND

601 132 ugSample 121019 0947 121019 2056 1Chloroethane ND

301 349 ugSample 121019 0947 121019 2056 1Chloroform ND

601 250 ugSample 121019 0947 121019 2056 1Chloromethane ND

301 240 ugSample 121019 0947 121019 2056 1cis-12-Dichloroethene ND

301 517 ugSample 121019 0947 121019 2056 1cis-13-Dichloropropene ND

301 289 ugSample 121019 0947 121019 2056 1Dibromomethane ND

601 106 ugSample 121019 0947 121019 2056 1Dichlorodifluoromethane ND

301 493 ugSample 121019 0947 121019 2056 1Ethylbenzene ND

301 301 ugSample 121019 0947 121019 2056 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

Eurofins TestAmerica Knoxville

12302019Page 26 of 706121

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-6Client Sample ID Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Hexachlorobutadiene ND 301 794 ugSample 121019 0947 121019 2056 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

289 289 ugSample 121019 0947 121019 2056 1HFPO dimer methyl ester as

HFPO-DA

ND

301 421 ugSample 121019 0947 121019 2056 1Isopropylbenzene ND

601 493 ugSample 121019 0947 121019 2056 1mp-Xylene ND

301 192 ugSample 121019 0947 121019 2056 1Methylene Chloride ND

301 144 ugSample 121019 0947 121019 2056 1Naphthalene ND

301 770 ugSample 121019 0947 121019 2056 1n-Butylbenzene ND

301 649 ugSample 121019 0947 121019 2056 1n-Propylbenzene ND

301 313 ugSample 121019 0947 121019 2056 1o-Xylene ND

301 589 ugSample 121019 0947 121019 2056 1sec-Butylbenzene ND

301 649 ugSample 121019 0947 121019 2056 1Styrene ND

301 529 ugSample 121019 0947 121019 2056 1tert-Butylbenzene ND

301 397 ugSample 121019 0947 121019 2056 1Tetrachloroethene ND

301 553 ugSample 121019 0947 121019 2056 1Toluene ND

301 313 ugSample 121019 0947 121019 2056 1trans-12-Dichloroethene ND

301 106 ugSample 121019 0947 121019 2056 1trans-13-Dichloropropene ND

301 216 ugSample 121019 0947 121019 2056 1Trichloroethene ND

601 577 ugSample 121019 0947 121019 2056 1Trichlorofluoromethane ND

601 144 ugSample 121019 0947 121019 2056 1Vinyl chloride ND

Propene hexafluoro- 408 T J N ugSample 113 116-15-4 121019 0947 121019 2056 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1121019 2056121019 0947T JUnknown 418 ugSample 118

12-Dichloroethane-d4 (Surr) 116 70 - 160 121019 0947 121019 2056 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 121019 0947 121019 2056 157 - 152

Dibromofluoromethane (Surr) 104 121019 0947 121019 2056 162 - 134

Toluene-d8 (Surr) 92 121019 0947 121019 2056 171 - 139

Method 8260B - Volatile Organic Compounds (GCMS) - DLRL MDL

2-MTP as HFPO 2350 657 657 ugSample 121019 0947 121119 1742 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

12-Dichloroethane-d4 (Surr) 112 70 - 160 121019 0947 121119 1742 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 107 121019 0947 121119 1742 157 - 152

Dibromofluoromethane (Surr) 98 121019 0947 121119 1742 162 - 134

Toluene-d8 (Surr) 96 121019 0947 121119 1742 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 4990 J 6410 3210 ugSample 121019 0947 122019 0138 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2650 1200 ugSample 121019 0947 122419 0442 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 50 HF SU 121719 1339 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Eurofins TestAmerica Knoxville

12302019Page 27 of 706122

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17557-1ProjectSite VEN Stack - MM-18

Method 8260B - Volatile Organic Compounds (GCMS)Prep MeOH Prep

2501112-Tetrachloroethane ugSample

Analyte UnitsMDLRL

0330

50011133-Pentafluorobutane ugSample0500

250111-Trichloroethane ugSample0360

500111-Trifluoro-22-dichloroethane ugSample0990

500111-Trifluoroethane ugSample0500

2501122-Tetrachloroethane ugSample0480

500112-Trichloro-122-trifluoroethane ugSample0280

500112-trichloro-1-fluoroethane ugSample0500

250112-Trichloroethane ugSample0260

50011-Dichloro-1-fluoroethane ugSample250

50011-dichloro-22-difluoroethane ugSample0500

50011-dichloro-22-difluoroethene ugSample0500

25011-Dichloroethane ugSample0300

25011-Dichloroethene ugSample0370

25011-Dichloropropene ugSample0270

50011-Difluoroethene ugSample500

500122-trichloro-11-difluoroethane ugSample0500

250123-Trichlorobenzene ugSample0800

250123-Trichloropropane ugSample0620

250124-Trichlorobenzene ugSample0840

250124-Trimethylbenzene ugSample0520

50012-Dibromo-3-Chloropropane ugSample0880

25012-Dibromoethane (EDB) ugSample0330

50012-dichloro-11-difluoroethane ugSample0500

25012-Dichlorobenzene ugSample0440

25012-Dichloroethane ugSample0420

25012-Dichloropropane ugSample0250

250135-Trimethylbenzene ugSample0520

25013-Dichlorobenzene ugSample0430

25013-Dichloropropane ugSample0280

25014-Dichlorobenzene ugSample0500

5001-Chloro-11-difluoroethane ugSample0510

50022-dichloro-11-difluoroethylmethyl ether ugSample0500

25022-Dichloropropane ugSample0730

1002-Butanone (MEK) ugSample160

5002-chloro-111444-hexafluoro-2-butene ugSample0740

5002-Chloro-111-Trifluoroethane ugSample0500

2502-Chlorotoluene ugSample0470

1002-Hexanone ugSample230

2502-MTP as HFPO ugSample250

2504-Chlorotoluene ugSample0520

2504-Isopropyltoluene ugSample0670

1004-Methyl-2-pentanone (MIBK) ugSample160

100Acetone ugSample590

250Benzene ugSample0480

250Bromobenzene ugSample0350

250Bromochloromethane ugSample0560

250Bromodichloromethane ugSample0430

250Bromoform ugSample0760

500Bromomethane ugSample290

250Carbon disulfide ugSample0620

250Carbon tetrachloride ugSample0330

Eurofins TestAmerica Knoxville

12302019Page 28 of 706123

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17557-1ProjectSite VEN Stack - MM-18

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)Prep MeOH Prep

100Carbonyl Difluoride ugSample

Analyte UnitsMDLRL

100

250Chlorobenzene ugSample0360

250Chlorodibromomethane ugSample0540

500Chloroethane ugSample110

250Chloroform ugSample0290

500Chloromethane ugSample208

250cis-12-Dichloroethene ugSample0200

250cis-13-Dichloropropene ugSample0430

250Dibromomethane ugSample0240

500Dichlorodifluoromethane ugSample0880

250Ethylbenzene ugSample0410

250Heptafluoropropyl 1222-tetrafluoroethyl ether ugSample250

250Hexachlorobutadiene ugSample0660

250HFPO dimer methyl ester as HFPO-DA ugSample250

250Isopropylbenzene ugSample0350

500mp-Xylene ugSample0410

250Methylene Chloride ugSample160

250Naphthalene ugSample120

250n-Butylbenzene ugSample0640

250n-Propylbenzene ugSample0540

250o-Xylene ugSample0260

250sec-Butylbenzene ugSample0490

250Styrene ugSample0540

250tert-Butylbenzene ugSample0440

250Tetrachloroethene ugSample0330

250Toluene ugSample0460

250trans-12-Dichloroethene ugSample0260

250trans-13-Dichloropropene ugSample0880

250Trichloroethene ugSample0180

500Trichlorofluoromethane ugSample0480

500Vinyl chloride ugSample120

Method 9056 - Anions Ion ChromatographyPrep MeOH Prep

110Hydrogen Fluoride ugSample

Analyte UnitsMDLRL

500

1000Total Fluorine ugSample500

Eurofins TestAmerica Knoxville

12302019Page 29 of 706124

ANALYTICAL REPORTJob Number 140-17462-1

Job Description VEN MM-18 Field QC

Contract Number LBIO-67048

ForChemours Company FC LLC The

co AECOMSabre Building Suite 300

4051 Ogletown RoadNewark DE 19713

Attention Michael Aucoin

_____________________________________________

Approved for releaseCourtney M AdkinsProject Manager II12232019 302 PM

Courtney M Adkins Project Manager II5815 Middlebrook Pike Knoxville TN 37921

(865)291-3000 courtneyadkinstestamericainccom

12232019

This report may not be reproduced except in full and with written approval from the laboratory For questions please contact the Project Manager atthe e-mail address or telephone number listed on this page

The test results in this report relate only to the samples as received by the laboratory and will meet all requirements of the methodology with anyexceptions noted This report shall not be reproduced except in full without the express written approval of the laboratory All questions should bedirected to the Eurofins TestAmerica Project Manager

This report has been electronically signed and authorized by the signatory Electronic signature is intended to be the legally binding equivalent of atraditionally handwritten signature

Eurofins TestAmerica Knoxville

5815 Middlebrook Pike Knoxville TN 37921

Tel (865) 291-3000 Fax (865) 584-4315 wwwtestamericainccom

12232019Page 1 of 820125

Table of ContentsCover Title Page 1

Data Summaries 5

Definitions 5

Method Summary 6

Sample Summary 7

Case Narrative 8

QC Association 10

Client Sample Results 13

Default Detection Limits 35

Surrogate Summary 37

QC Sample Results 39

Chronicle 46

Certification Summary 54

Manual Integration Summary 56

Organic Sample Data 69

GCMS VOA 69

Method 8260B 69Method 8260B QC Summary 70Method 8260B Sample Data 83Standards Data 179

Method 8260B ICAL Data 179Method 8260B CCAL Data 281

Raw QC Data 329Method 8260B Tune Data 329Method 8260B Blank Data 345Method 8260B LCSLCSD Data 355

12232019Page 2 of 820126

Table of ContentsMethod 8260B MSMSD Data 368

Method 8260B Run Logs 376Method 8260B Prep Data 389

HPLCIC 392

Method 9056 392Method 9056 QC Summary 393Method 9056 Sample Data 396Standards Data 423

Method 9056 ICAL Data 423Method 9056 CCAL Data 450

Raw QC Data 493Method 9056 Blank Data 493Method 9056 LCSLCSD Data 519

Method 9056 Run Logs 525Method 9056 Prep Data 539

Method 9056A Total Halogens 541Method 9056A Total Halogens QC Summary 542Method 9056A Total Halogens Sample Data 545Standards Data 580

Method 9056A Total Halogens ICAL Data 580Method 9056A Total Halogens CCAL Data 605

Raw QC Data 624Method 9056A Total Halogens Blank Data 624Method 9056A Total Halogens LCSLCSD Data 641

Method 9056A Total Halogens Run Logs 649Method 9056A Total Halogens Prep Data 658

12232019Page 3 of 820127

Table of ContentsLCMS 662

Method DV-LC-0012 662Method DV-LC-0012 QC Summary 663Method DV-LC-0012 Sample Data 668Standards Data 704

Method DV-LC-0012 ICAL Data 704Method DV-LC-0012 CCAL Data 751

Raw QC Data 763Method DV-LC-0012 Tune Data 763Method DV-LC-0012 Blank Data 768Method DV-LC-0012 LCSLCSD Data 772

Method DV-LC-0012 Run Logs 785Method DV-LC-0012 Prep Data 788

Inorganic Sample Data 796

General Chemistry Data 796

Gen Chem Cover Page 797

Gen Chem Sample Data 798

Gen Chem QC Data 807Gen Chem ICVCCV 807

Gen Chem MDL 808

Gen Chem Analysis Run Log 809

Gen Chem Prep Data 810

Gen Chem Raw Data 811

Shipping and Receiving Documents 813

Client Chain of Custody 814

12232019Page 4 of 820128

DefinitionsGlossaryJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Qualifiers

GCMS VOAQualifier Description

LCS or LCSD is outside acceptance limits

Qualifier

B Compound was found in the blank and sample

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

GCMS VOA TICsQualifier Description

J Indicates an Estimated Value for TICs

Qualifier

N Presumptive evidence of material

T Result is a tentatively identified compound (TIC) and an estimated value

HPLCICQualifier Description

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

Qualifier

LCMSQualifier Description

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

Qualifier

General ChemistryQualifier Description

HF Field parameter with a holding time of 15 minutes Test performed by laboratory at clients request

Qualifier

GlossaryThese commonly used abbreviations may or may not be present in this report

curren Listed under the D column to designate that the result is reported on a dry weight basis

Abbreviation

R Percent Recovery

CFL Contains Free Liquid

CNF Contains No Free Liquid

DER Duplicate Error Ratio (normalized absolute difference)

Dil Fac Dilution Factor

DL Detection Limit (DoDDOE)

DL RA RE IN Indicates a Dilution Re-analysis Re-extraction or additional Initial metalsanion analysis of the sample

DLC Decision Level Concentration (Radiochemistry)

EDL Estimated Detection Limit (Dioxin)

LOD Limit of Detection (DoDDOE)

LOQ Limit of Quantitation (DoDDOE)

MDA Minimum Detectable Activity (Radiochemistry)

MDC Minimum Detectable Concentration (Radiochemistry)

MDL Method Detection Limit

ML Minimum Level (Dioxin)

NC Not Calculated

ND Not Detected at the reporting limit (or MDL or EDL if shown)

PQL Practical Quantitation Limit

QC Quality Control

RER Relative Error Ratio (Radiochemistry)

RL Reporting Limit or Requested Limit (Radiochemistry)

RPD Relative Percent Difference a measure of the relative difference between two points

TEF Toxicity Equivalent Factor (Dioxin)

TEQ Toxicity Equivalent Quotient (Dioxin)

Eurofins TestAmerica Knoxville

12232019Page 5 of 820129

Method SummaryJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Method Method Description LaboratoryProtocol

SW8468260B Volatile Organic Compounds (GCMS) TAL KNX

SW8469056 Anions Ion Chromatography TAL KNX

SW8468321A PFOA and PFOS TAL DEN

SW8469041A pH TAL KNX

SW8465050 Bomb Preparation Method for Solid Waste TAL KNX

NoneMeOH Prep Methanol Impinger Preparation TAL KNX

TAL SOPNone Leaching Procedure TAL DEN

Protocol References

None = None

SW846 = Test Methods For Evaluating Solid Waste PhysicalChemical Methods Third Edition November 1986 And Its Updates

TAL SOP = TestAmerica Laboratories Standard Operating Procedure

Laboratory References

TAL DEN = Eurofins TestAmerica Denver 4955 Yarrow Street Arvada CO 80002 TEL (303)736-0100

TAL KNX = Eurofins TestAmerica Knoxville 5815 Middlebrook Pike Knoxville TN 37921 TEL (865)291-3000

Eurofins TestAmerica Knoxville

12232019Page 6 of 820130

Sample SummaryJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID Client Sample ID ReceivedCollectedMatrix Asset ID

140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1

BT

Air 112219 0000 112519 0800

140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2

BT

Air 112219 0000 112519 0800

140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3

BT

Air 112219 0000 112519 0800

140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4

BT

Air 112219 0000 112519 0800

140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5

BT

Air 112219 0000 112519 0800

140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6

BT

Air 112219 0000 112519 0800

140-17462-7 A-5786 QC MEOH RB Air 112219 0000 112519 0800

140-17462-8 A-5787 QC MEOH TB Air 112219 0000 112519 0800

140-17462-9 A-5788 QC MEOH PB Air 112219 0000 112519 0800

Eurofins TestAmerica Knoxville

12232019Page 7 of 820131

Job Narrative140-17462-1

Sample Receipt

The samples were received on November 25 2019 at 800 AM in good condition and properly preserved The temperature of the cooler at receipt was 33ordm C

GCMS VOA

Impinger Sample Preparation and Analysis Impinger samples were analyzed for the volatile organic target analytes by purge and trap GCMS using Eurofins TestAmerica Knoxville standard operating procedure KNOX-MS-0015 based on the following method

middot SW-846 8260B ldquoVolatile Organic Compounds by Gas Chromatography Mass Spectrometry (GCMS)rdquo

Each sample is prepared by adding a known amount of sample to the purge water in a purge and trap vessel and spiking with internal standards surrogates and matrix spike analytes (as needed) Volatile compounds are introduced into the gas chromatograph by the purge and trap method The components are separated using the chromatograph and detected using a mass spectrometer which provides both qualitative and quantitative information

Impinger sample results were calculated using the following equation

Concentration μgsample = (C times DF times W times Vt) (Va)WhereC = On-column concentration μgLDF = Dilution factorW = Volume of water purged LVt = Methanol extract final volume μL Va = Volume of extract analyzed microL

Method 8260B The following analyte(s) recovered outside control limits but within marginal exceedance limits for the LCS associated with batch 140-35880 Trichlorofluoromethane This is not indicative of a systematic control problem because these were random marginal exceedances Qualified results have been reported

No additional analytical or quality issues were noted other than those described above or in the DefinitionsGlossary page

LCMS No analytical or quality issues were noted other than those described in the DefinitionsGlossary page

General Chemistry Total Chlorine The samples were prepared for total chlorine using SOP number KNOX-WC-0016 (based on ASTM Method E442 and SW-846 Method 5050) The sample is oxidized by combustion in an oxygen flask at atmospheric pressure or a bomb containing oxygen under pressure The liberated halogen compounds are absorbed primarily as halides in a sodium carbonatesodium bicarbonate buffer solution The combustion products are collected by repeated rinsing of the combustion apparatus and analyzed by ion chromatography in accordance with SOP KNOX- WC-0005 (based on SW-846 Method 9056) The results are calculated using the following equation

C = [(Ccom times Vcom) W] times 1000 gKg

WhereC = Concentration of analyte in the sample mgKgCcom = Concentration of analyte in the combustate mgLVcom = Total volume of combustate LW = Weight of sample combusted g

Anions in Impinger Solutions Anions are is determined in accordance to SOP KNOX-WC-0005 (based on methods 3000A and 9056) The samples were diluted a minimum of 120 in ion chromatography solvent buffer solution to reduce the methanol concentration before injection Buffer concentrate was added until the pH was 10 Samples are diluted with ion chromatography eluate solution to bring the concentrations within the calibration range when necessary Higher dilutions are applied as necessary

An aliquot of prepared sample is introduced into the ion chromatograph Anions are identified based on their retention times as compared to those of known standards Quantification is accomplished by measuring the peak response and comparing it to a calibration curve generated from known standards

12232019Page 8 of 820132

The pH of all samples were tested with pH paper QC consisted of initial CCV and LCS which also serve as initial calibration duplicate analysis for every 10 samples and closing CCV A certified thermometer was used to check the ambient temperature

No additional analytical or quality issues were noted other than those described above or in the DefinitionsGlossary page

Organic Prep No analytical or quality issues were noted other than those described in the DefinitionsGlossary page

No analytical or quality issues were noted other than those described in the DefinitionsGlossary page

12232019Page 9 of 820133

QC Association SummaryJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

GCMS VOA

Prep Batch 35705

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air MeOH Prep140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air MeOH Prep140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air MeOH Prep140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air MeOH Prep140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air MeOH Prep140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air MeOH Prep140-17462-7 A-5786 QC MEOH RB TotalNA

Air MeOH Prep140-17462-8 A-5787 QC MEOH TB TotalNA

Air MeOH Prep140-17462-9 A-5788 QC MEOH PB TotalNA

Air MeOH PrepMB 140-357052-A Method Blank TotalNA

Air MeOH PrepLCS 140-357051-A Lab Control Sample TotalNA

Air MeOH Prep140-17462-2 MS A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air MeOH Prep140-17462-2 MSD A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Analysis Batch 35880

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8260B 35705140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air 8260B 35705140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 8260B 35705140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air 8260B 35705140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air 8260B 35705140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air 8260B 35705140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air 8260B 35705140-17462-7 A-5786 QC MEOH RB TotalNA

Air 8260B 35705140-17462-8 A-5787 QC MEOH TB TotalNA

Air 8260B 35705140-17462-9 A-5788 QC MEOH PB TotalNA

Air 8260B 35705MB 140-357052-A Method Blank TotalNA

Air 8260B 35705LCS 140-357051-A Lab Control Sample TotalNA

Air 8260B 35705LCS 140-357051-A Lab Control Sample TotalNA

Air 8260B 35705140-17462-2 MS A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 8260B 35705140-17462-2 MSD A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

HPLCIC

Prep Batch 35705

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air MeOH Prep140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air MeOH Prep140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air MeOH Prep140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air MeOH Prep140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air MeOH Prep140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air MeOH Prep140-17462-7 A-5786 QC MEOH RB TotalNA

Air MeOH Prep140-17462-8 A-5787 QC MEOH TB TotalNA

Air MeOH Prep140-17462-9 A-5788 QC MEOH PB TotalNA

Air MeOH PrepMB 140-3570514-A Method Blank TotalNA

Air MeOH PrepMB 140-3570514-B Method Blank TotalNA

Air MeOH PrepLCS 140-3570515-A Lab Control Sample TotalNA

Air MeOH PrepLCS 140-3570515-B Lab Control Sample TotalNA

Air MeOH PrepLCSD 140-3570516-A Lab Control Sample Dup TotalNA

Air MeOH PrepLCSD 140-3570516-B Lab Control Sample Dup TotalNA

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12232019Page 10 of 820134

QC Association SummaryJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

HPLCIC

Prep Batch 35762

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 5050 35705140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air 5050 35705140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 5050 35705140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air 5050 35705140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air 5050 35705140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air 5050 35705140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air 5050 35705140-17462-7 A-5786 QC MEOH RB TotalNA

Air 5050 35705140-17462-8 A-5787 QC MEOH TB TotalNA

Air 5050 35705140-17462-9 A-5788 QC MEOH PB TotalNA

Air 5050 35705MB 140-3570514-B Method Blank TotalNA

Air 5050 35705LCS 140-3570515-B Lab Control Sample TotalNA

Air 5050 35705LCSD 140-3570516-B Lab Control Sample Dup TotalNA

Analysis Batch 36121

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35762140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air 9056 35762140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 9056 35762140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air 9056 35762140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air 9056 35762140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air 9056 35762140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air 9056 35762140-17462-7 A-5786 QC MEOH RB TotalNA

Air 9056 35762140-17462-8 A-5787 QC MEOH TB TotalNA

Air 9056 35762140-17462-9 A-5788 QC MEOH PB TotalNA

Air 9056 35762MB 140-3570514-B Method Blank TotalNA

Air 9056 35762LCS 140-3570515-B Lab Control Sample TotalNA

Air 9056 35762LCSD 140-3570516-B Lab Control Sample Dup TotalNA

Analysis Batch 36210

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35705140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air 9056 35705140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 9056 35705140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air 9056 35705140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air 9056 35705140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air 9056 35705140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air 9056 35705140-17462-7 A-5786 QC MEOH RB TotalNA

Air 9056 35705140-17462-8 A-5787 QC MEOH TB TotalNA

Air 9056 35705140-17462-9 A-5788 QC MEOH PB TotalNA

Air 9056 35705MB 140-3570514-A Method Blank TotalNA

Air 9056 35705LCS 140-3570515-A Lab Control Sample TotalNA

Air 9056 35705LCSD 140-3570516-A Lab Control Sample Dup TotalNA

LCMS

Analysis Batch 464589

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321ADLCK 280-46458913 Lab Control Sample TotalNA

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12232019Page 11 of 820135

QC Association SummaryJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

LCMS

Prep Batch 479505

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air None140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air None140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air None140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air None140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air None140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air None140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air None140-17462-7 A-5786 QC MEOH RB TotalNA

Air None140-17462-8 A-5787 QC MEOH TB TotalNA

Air None140-17462-9 A-5788 QC MEOH PB TotalNA

Air NoneMB 280-4795051-A Method Blank TotalNA

Air NoneLCS 280-4795052-A Lab Control Sample TotalNA

Air NoneLCSD 280-4795053-A Lab Control Sample Dup TotalNA

Analysis Batch 479931

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321A 479505140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air 8321A 479505140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 8321A 479505140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air 8321A 479505140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air 8321A 479505140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air 8321A 479505140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air 8321A 479505140-17462-7 A-5786 QC MEOH RB TotalNA

Air 8321A 479505140-17462-8 A-5787 QC MEOH TB TotalNA

Air 8321A 479505140-17462-9 A-5788 QC MEOH PB TotalNA

Air 8321A 479505MB 280-4795051-A Method Blank TotalNA

Air 8321A 479505LCS 280-4795052-A Lab Control Sample TotalNA

Air 8321A 479505LCSD 280-4795053-A Lab Control Sample Dup TotalNA

General Chemistry

Analysis Batch 36086

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9041A140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air 9041A140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 9041A140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air 9041A140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air 9041A140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air 9041A140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air 9041A140-17462-7 A-5786 QC MEOH RB TotalNA

Air 9041A140-17462-8 A-5787 QC MEOH TB TotalNA

Air 9041A140-17462-9 A-5788 QC MEOH PB TotalNA

Air 9041ALCS 140-360862 Lab Control Sample TotalNA

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12232019Page 12 of 820136

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-1Client Sample ID A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 287 379 ugSample 112919 1045 120619 1517 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

574 574 ugSample 112919 1045 120619 1517 111133-Pentafluorobutane ND

287 413 ugSample 112919 1045 120619 1517 1111-Trichloroethane ND

574 114 ugSample 112919 1045 120619 1517 1111-Trifluoro-22-dichloroethane ND

574 574 ugSample 112919 1045 120619 1517 1111-Trifluoroethane ND

287 551 ugSample 112919 1045 120619 1517 11122-Tetrachloroethane ND

574 321 ugSample 112919 1045 120619 1517 1112-Trichloro-122-trifluoroethane ND

574 574 ugSample 112919 1045 120619 1517 1112-trichloro-1-fluoroethane ND

287 298 ugSample 112919 1045 120619 1517 1112-Trichloroethane ND

574 287 ugSample 112919 1045 120619 1517 111-Dichloro-1-fluoroethane ND

574 574 ugSample 112919 1045 120619 1517 111-dichloro-22-difluoroethane ND

574 574 ugSample 112919 1045 120619 1517 111-dichloro-22-difluoroethene ND

287 344 ugSample 112919 1045 120619 1517 111-Dichloroethane ND

287 425 ugSample 112919 1045 120619 1517 111-Dichloroethene ND

287 310 ugSample 112919 1045 120619 1517 111-Dichloropropene ND

574 574 ugSample 112919 1045 120619 1517 111-Difluoroethene ND

574 574 ugSample 112919 1045 120619 1517 1122-trichloro-11-difluoroethane ND

287 918 ugSample 112919 1045 120619 1517 1123-Trichlorobenzene ND

287 712 ugSample 112919 1045 120619 1517 1123-Trichloropropane ND

287 964 ugSample 112919 1045 120619 1517 1124-Trichlorobenzene ND

287 597 ugSample 112919 1045 120619 1517 1124-Trimethylbenzene ND

574 101 ugSample 112919 1045 120619 1517 112-Dibromo-3-Chloropropane ND

287 379 ugSample 112919 1045 120619 1517 112-Dibromoethane (EDB) ND

574 574 ugSample 112919 1045 120619 1517 112-dichloro-11-difluoroethane ND

287 505 ugSample 112919 1045 120619 1517 112-Dichlorobenzene ND

287 482 ugSample 112919 1045 120619 1517 112-Dichloroethane ND

287 287 ugSample 112919 1045 120619 1517 112-Dichloropropane ND

287 597 ugSample 112919 1045 120619 1517 1135-Trimethylbenzene ND

287 494 ugSample 112919 1045 120619 1517 113-Dichlorobenzene ND

287 321 ugSample 112919 1045 120619 1517 113-Dichloropropane ND

287 574 ugSample 112919 1045 120619 1517 114-Dichlorobenzene ND

574 585 ugSample 112919 1045 120619 1517 11-Chloro-11-difluoroethane ND

574 574 ugSample 112919 1045 120619 1517 122-dichloro-11-difluoroethylmethyl

ether

ND

287 838 ugSample 112919 1045 120619 1517 122-Dichloropropane ND

115 184 ugSample 112919 1045 120619 1517 12-Butanone (MEK) ND

574 849 ugSample 112919 1045 120619 1517 12-chloro-111444-hexafluoro-2-but

ene

ND

574 574 ugSample 112919 1045 120619 1517 12-Chloro-111-Trifluoroethane ND

287 540 ugSample 112919 1045 120619 1517 12-Chlorotoluene ND

115 264 ugSample 112919 1045 120619 1517 12-Hexanone ND

251 251 ugSample 112919 1045 120619 1517 12-MTP as HFPO ND

287 597 ugSample 112919 1045 120619 1517 14-Chlorotoluene ND

287 769 ugSample 112919 1045 120619 1517 14-Isopropyltoluene ND

115 184 ugSample 112919 1045 120619 1517 14-Methyl-2-pentanone (MIBK) ND

115 677 ugSample 112919 1045 120619 1517 1Acetone ND

287 551 ugSample 112919 1045 120619 1517 1Benzene ND

287 402 ugSample 112919 1045 120619 1517 1Bromobenzene ND

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12232019Page 13 of 820137

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-1Client Sample ID A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromochloromethane ND 287 643 ugSample 112919 1045 120619 1517 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

287 494 ugSample 112919 1045 120619 1517 1Bromodichloromethane ND

287 872 ugSample 112919 1045 120619 1517 1Bromoform ND

574 333 ugSample 112919 1045 120619 1517 1Bromomethane ND

287 712 ugSample 112919 1045 120619 1517 1Carbon disulfide ND

287 379 ugSample 112919 1045 120619 1517 1Carbon tetrachloride ND

843 843 ugSample 112919 1045 120619 1517 1Carbonyl Difluoride ND

287 413 ugSample 112919 1045 120619 1517 1Chlorobenzene ND

287 620 ugSample 112919 1045 120619 1517 1Chlorodibromomethane ND

574 126 ugSample 112919 1045 120619 1517 1Chloroethane ND

287 333 ugSample 112919 1045 120619 1517 1Chloroform ND

574 239 ugSample 112919 1045 120619 1517 1Chloromethane ND

287 230 ugSample 112919 1045 120619 1517 1cis-12-Dichloroethene ND

287 494 ugSample 112919 1045 120619 1517 1cis-13-Dichloropropene ND

287 275 ugSample 112919 1045 120619 1517 1Dibromomethane ND

574 101 ugSample 112919 1045 120619 1517 1Dichlorodifluoromethane ND

287 471 ugSample 112919 1045 120619 1517 1Ethylbenzene ND

287 287 ugSample 112919 1045 120619 1517 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

287 758 ugSample 112919 1045 120619 1517 1Hexachlorobutadiene ND

275 275 ugSample 112919 1045 120619 1517 1HFPO dimer methyl ester as

HFPO-DA

ND

287 402 ugSample 112919 1045 120619 1517 1Isopropylbenzene ND

574 471 ugSample 112919 1045 120619 1517 1mp-Xylene ND

287 184 ugSample 112919 1045 120619 1517 1Methylene Chloride ND

287 138 ugSample 112919 1045 120619 1517 1Naphthalene ND

287 735 ugSample 112919 1045 120619 1517 1n-Butylbenzene ND

287 620 ugSample 112919 1045 120619 1517 1n-Propylbenzene ND

287 298 ugSample 112919 1045 120619 1517 1o-Xylene ND

287 562 ugSample 112919 1045 120619 1517 1sec-Butylbenzene ND

287 620 ugSample 112919 1045 120619 1517 1Styrene ND

287 505 ugSample 112919 1045 120619 1517 1tert-Butylbenzene ND

287 379 ugSample 112919 1045 120619 1517 1Tetrachloroethene ND

287 528 ugSample 112919 1045 120619 1517 1Toluene ND

287 298 ugSample 112919 1045 120619 1517 1trans-12-Dichloroethene ND

287 101 ugSample 112919 1045 120619 1517 1trans-13-Dichloropropene ND

287 207 ugSample 112919 1045 120619 1517 1Trichloroethene ND

574 551 ugSample 112919 1045 120619 1517 1Trichlorofluoromethane ND

574 138 ugSample 112919 1045 120619 1517 1Vinyl chloride ND

Tentatively Identified Compound None ugSample 112919 1045 120619 1517 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1045 120619 1517 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 112919 1045 120619 1517 157 - 152

Dibromofluoromethane (Surr) 104 112919 1045 120619 1517 162 - 134

Toluene-d8 (Surr) 97 112919 1045 120619 1517 171 - 139

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12232019Page 14 of 820138

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-1Client Sample ID A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 11800 6120 3060 ugSample 112919 1045 121319 2153 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2530 1150 ugSample 112919 1045 121819 1319 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1037 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 130 50 - 200 120419 1005 120819 1037 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-2Client Sample ID A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 299 394 ugSample 112919 1045 120619 1542 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

598 598 ugSample 112919 1045 120619 1542 111133-Pentafluorobutane ND

299 430 ugSample 112919 1045 120619 1542 1111-Trichloroethane ND

598 118 ugSample 112919 1045 120619 1542 1111-Trifluoro-22-dichloroethane ND

598 598 ugSample 112919 1045 120619 1542 1111-Trifluoroethane ND

299 574 ugSample 112919 1045 120619 1542 11122-Tetrachloroethane ND

598 335 ugSample 112919 1045 120619 1542 1112-Trichloro-122-trifluoroethane ND

598 598 ugSample 112919 1045 120619 1542 1112-trichloro-1-fluoroethane ND

299 311 ugSample 112919 1045 120619 1542 1112-Trichloroethane ND

598 299 ugSample 112919 1045 120619 1542 111-Dichloro-1-fluoroethane ND

598 598 ugSample 112919 1045 120619 1542 111-dichloro-22-difluoroethane ND

598 598 ugSample 112919 1045 120619 1542 111-dichloro-22-difluoroethene ND

299 359 ugSample 112919 1045 120619 1542 111-Dichloroethane ND

299 442 ugSample 112919 1045 120619 1542 111-Dichloroethene ND

299 323 ugSample 112919 1045 120619 1542 111-Dichloropropene ND

598 598 ugSample 112919 1045 120619 1542 111-Difluoroethene ND

598 598 ugSample 112919 1045 120619 1542 1122-trichloro-11-difluoroethane ND

299 956 ugSample 112919 1045 120619 1542 1123-Trichlorobenzene ND

299 741 ugSample 112919 1045 120619 1542 1123-Trichloropropane ND

299 100 ugSample 112919 1045 120619 1542 1124-Trichlorobenzene ND

299 621 ugSample 112919 1045 120619 1542 1124-Trimethylbenzene ND

598 105 ugSample 112919 1045 120619 1542 112-Dibromo-3-Chloropropane ND

299 394 ugSample 112919 1045 120619 1542 112-Dibromoethane (EDB) ND

598 598 ugSample 112919 1045 120619 1542 112-dichloro-11-difluoroethane ND

299 526 ugSample 112919 1045 120619 1542 112-Dichlorobenzene ND

299 502 ugSample 112919 1045 120619 1542 112-Dichloroethane ND

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12232019Page 15 of 820139

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-2Client Sample ID A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

12-Dichloropropane ND 299 299 ugSample 112919 1045 120619 1542 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

299 621 ugSample 112919 1045 120619 1542 1135-Trimethylbenzene ND

299 514 ugSample 112919 1045 120619 1542 113-Dichlorobenzene ND

299 335 ugSample 112919 1045 120619 1542 113-Dichloropropane ND

299 598 ugSample 112919 1045 120619 1542 114-Dichlorobenzene ND

598 610 ugSample 112919 1045 120619 1542 11-Chloro-11-difluoroethane ND

598 598 ugSample 112919 1045 120619 1542 122-dichloro-11-difluoroethylmethyl

ether

ND

299 872 ugSample 112919 1045 120619 1542 122-Dichloropropane ND

120 191 ugSample 112919 1045 120619 1542 12-Butanone (MEK) ND

598 884 ugSample 112919 1045 120619 1542 12-chloro-111444-hexafluoro-2-but

ene

ND

598 598 ugSample 112919 1045 120619 1542 12-Chloro-111-Trifluoroethane ND

299 562 ugSample 112919 1045 120619 1542 12-Chlorotoluene ND

120 275 ugSample 112919 1045 120619 1542 12-Hexanone ND

261 261 ugSample 112919 1045 120619 1542 12-MTP as HFPO ND

299 621 ugSample 112919 1045 120619 1542 14-Chlorotoluene ND

299 801 ugSample 112919 1045 120619 1542 14-Isopropyltoluene ND

120 191 ugSample 112919 1045 120619 1542 14-Methyl-2-pentanone (MIBK) ND

120 705 ugSample 112919 1045 120619 1542 1Acetone ND

299 574 ugSample 112919 1045 120619 1542 1Benzene ND

299 418 ugSample 112919 1045 120619 1542 1Bromobenzene ND

299 669 ugSample 112919 1045 120619 1542 1Bromochloromethane ND

299 514 ugSample 112919 1045 120619 1542 1Bromodichloromethane ND

299 908 ugSample 112919 1045 120619 1542 1Bromoform ND

598 347 ugSample 112919 1045 120619 1542 1Bromomethane ND

299 741 ugSample 112919 1045 120619 1542 1Carbon disulfide ND

299 394 ugSample 112919 1045 120619 1542 1Carbon tetrachloride ND

879 879 ugSample 112919 1045 120619 1542 1Carbonyl Difluoride ND

299 430 ugSample 112919 1045 120619 1542 1Chlorobenzene ND

299 645 ugSample 112919 1045 120619 1542 1Chlorodibromomethane ND

598 131 ugSample 112919 1045 120619 1542 1Chloroethane ND

299 347 ugSample 112919 1045 120619 1542 1Chloroform ND

598 249 ugSample 112919 1045 120619 1542 1Chloromethane ND

299 239 ugSample 112919 1045 120619 1542 1cis-12-Dichloroethene ND

299 514 ugSample 112919 1045 120619 1542 1cis-13-Dichloropropene ND

299 287 ugSample 112919 1045 120619 1542 1Dibromomethane ND

598 105 ugSample 112919 1045 120619 1542 1Dichlorodifluoromethane ND

299 490 ugSample 112919 1045 120619 1542 1Ethylbenzene ND

299 299 ugSample 112919 1045 120619 1542 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

299 789 ugSample 112919 1045 120619 1542 1Hexachlorobutadiene ND

287 287 ugSample 112919 1045 120619 1542 1HFPO dimer methyl ester as

HFPO-DA

ND

299 418 ugSample 112919 1045 120619 1542 1Isopropylbenzene ND

598 490 ugSample 112919 1045 120619 1542 1mp-Xylene ND

299 191 ugSample 112919 1045 120619 1542 1Methylene Chloride ND

299 143 ugSample 112919 1045 120619 1542 1Naphthalene ND

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12232019Page 16 of 820140

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-2Client Sample ID A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

n-Butylbenzene ND 299 765 ugSample 112919 1045 120619 1542 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

299 645 ugSample 112919 1045 120619 1542 1n-Propylbenzene ND

299 311 ugSample 112919 1045 120619 1542 1o-Xylene ND

299 586 ugSample 112919 1045 120619 1542 1sec-Butylbenzene ND

299 645 ugSample 112919 1045 120619 1542 1Styrene ND

299 526 ugSample 112919 1045 120619 1542 1tert-Butylbenzene ND

299 394 ugSample 112919 1045 120619 1542 1Tetrachloroethene ND

299 550 ugSample 112919 1045 120619 1542 1Toluene ND

299 311 ugSample 112919 1045 120619 1542 1trans-12-Dichloroethene ND

299 105 ugSample 112919 1045 120619 1542 1trans-13-Dichloropropene ND

299 215 ugSample 112919 1045 120619 1542 1Trichloroethene ND

598 574 ugSample 112919 1045 120619 1542 1Trichlorofluoromethane ND

598 143 ugSample 112919 1045 120619 1542 1Vinyl chloride ND

Cyclohexane 433 T J N ugSample 442 110-82-7 112919 1045 120619 1542 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1045 120619 1542 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1045 120619 1542 157 - 152

Dibromofluoromethane (Surr) 105 112919 1045 120619 1542 162 - 134

Toluene-d8 (Surr) 96 112919 1045 120619 1542 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 14800 6370 3190 ugSample 112919 1045 121319 2214 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2630 1200 ugSample 112919 1045 121819 1340 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1040 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 131 50 - 200 120419 1005 120819 1040 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-3Client Sample ID A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 291 384 ugSample 112919 1045 120619 1606 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

582 582 ugSample 112919 1045 120619 1606 111133-Pentafluorobutane ND

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12232019Page 17 of 820141

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-3Client Sample ID A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

111-Trichloroethane ND 291 419 ugSample 112919 1045 120619 1606 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

582 115 ugSample 112919 1045 120619 1606 1111-Trifluoro-22-dichloroethane ND

582 582 ugSample 112919 1045 120619 1606 1111-Trifluoroethane ND

291 559 ugSample 112919 1045 120619 1606 11122-Tetrachloroethane ND

582 326 ugSample 112919 1045 120619 1606 1112-Trichloro-122-trifluoroethane ND

582 582 ugSample 112919 1045 120619 1606 1112-trichloro-1-fluoroethane ND

291 303 ugSample 112919 1045 120619 1606 1112-Trichloroethane ND

582 291 ugSample 112919 1045 120619 1606 111-Dichloro-1-fluoroethane ND

582 582 ugSample 112919 1045 120619 1606 111-dichloro-22-difluoroethane ND

582 582 ugSample 112919 1045 120619 1606 111-dichloro-22-difluoroethene ND

291 349 ugSample 112919 1045 120619 1606 111-Dichloroethane ND

291 431 ugSample 112919 1045 120619 1606 111-Dichloroethene ND

291 314 ugSample 112919 1045 120619 1606 111-Dichloropropene ND

582 582 ugSample 112919 1045 120619 1606 111-Difluoroethene ND

582 582 ugSample 112919 1045 120619 1606 1122-trichloro-11-difluoroethane ND

291 932 ugSample 112919 1045 120619 1606 1123-Trichlorobenzene ND

291 722 ugSample 112919 1045 120619 1606 1123-Trichloropropane ND

291 978 ugSample 112919 1045 120619 1606 1124-Trichlorobenzene ND

291 606 ugSample 112919 1045 120619 1606 1124-Trimethylbenzene ND

582 102 ugSample 112919 1045 120619 1606 112-Dibromo-3-Chloropropane ND

291 384 ugSample 112919 1045 120619 1606 112-Dibromoethane (EDB) ND

582 582 ugSample 112919 1045 120619 1606 112-dichloro-11-difluoroethane ND

291 512 ugSample 112919 1045 120619 1606 112-Dichlorobenzene ND

291 489 ugSample 112919 1045 120619 1606 112-Dichloroethane ND

291 291 ugSample 112919 1045 120619 1606 112-Dichloropropane ND

291 606 ugSample 112919 1045 120619 1606 1135-Trimethylbenzene ND

291 501 ugSample 112919 1045 120619 1606 113-Dichlorobenzene ND

291 326 ugSample 112919 1045 120619 1606 113-Dichloropropane ND

291 582 ugSample 112919 1045 120619 1606 114-Dichlorobenzene ND

582 594 ugSample 112919 1045 120619 1606 11-Chloro-11-difluoroethane ND

582 582 ugSample 112919 1045 120619 1606 122-dichloro-11-difluoroethylmethyl

ether

ND

291 850 ugSample 112919 1045 120619 1606 122-Dichloropropane ND

116 186 ugSample 112919 1045 120619 1606 12-Butanone (MEK) ND

582 862 ugSample 112919 1045 120619 1606 12-chloro-111444-hexafluoro-2-but

ene

ND

582 582 ugSample 112919 1045 120619 1606 12-Chloro-111-Trifluoroethane ND

291 547 ugSample 112919 1045 120619 1606 12-Chlorotoluene ND

116 268 ugSample 112919 1045 120619 1606 12-Hexanone ND

254 254 ugSample 112919 1045 120619 1606 12-MTP as HFPO ND

291 606 ugSample 112919 1045 120619 1606 14-Chlorotoluene ND

291 780 ugSample 112919 1045 120619 1606 14-Isopropyltoluene ND

116 186 ugSample 112919 1045 120619 1606 14-Methyl-2-pentanone (MIBK) ND

116 687 ugSample 112919 1045 120619 1606 1Acetone ND

291 559 ugSample 112919 1045 120619 1606 1Benzene ND

291 408 ugSample 112919 1045 120619 1606 1Bromobenzene ND

291 652 ugSample 112919 1045 120619 1606 1Bromochloromethane ND

291 501 ugSample 112919 1045 120619 1606 1Bromodichloromethane ND

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12232019Page 18 of 820142

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-3Client Sample ID A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromoform ND 291 885 ugSample 112919 1045 120619 1606 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

582 338 ugSample 112919 1045 120619 1606 1Bromomethane ND

291 722 ugSample 112919 1045 120619 1606 1Carbon disulfide ND

291 384 ugSample 112919 1045 120619 1606 1Carbon tetrachloride ND

850 850 ugSample 112919 1045 120619 1606 1Carbonyl Difluoride ND

291 419 ugSample 112919 1045 120619 1606 1Chlorobenzene ND

291 629 ugSample 112919 1045 120619 1606 1Chlorodibromomethane ND

582 128 ugSample 112919 1045 120619 1606 1Chloroethane ND

291 338 ugSample 112919 1045 120619 1606 1Chloroform ND

582 242 ugSample 112919 1045 120619 1606 1Chloromethane ND

291 233 ugSample 112919 1045 120619 1606 1cis-12-Dichloroethene ND

291 501 ugSample 112919 1045 120619 1606 1cis-13-Dichloropropene ND

291 280 ugSample 112919 1045 120619 1606 1Dibromomethane ND

582 102 ugSample 112919 1045 120619 1606 1Dichlorodifluoromethane ND

291 477 ugSample 112919 1045 120619 1606 1Ethylbenzene ND

291 291 ugSample 112919 1045 120619 1606 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

291 769 ugSample 112919 1045 120619 1606 1Hexachlorobutadiene ND

279 279 ugSample 112919 1045 120619 1606 1HFPO dimer methyl ester as

HFPO-DA

ND

291 408 ugSample 112919 1045 120619 1606 1Isopropylbenzene ND

582 477 ugSample 112919 1045 120619 1606 1mp-Xylene ND

291 186 ugSample 112919 1045 120619 1606 1Methylene Chloride ND

291 140 ugSample 112919 1045 120619 1606 1Naphthalene ND

291 745 ugSample 112919 1045 120619 1606 1n-Butylbenzene ND

291 629 ugSample 112919 1045 120619 1606 1n-Propylbenzene ND

291 303 ugSample 112919 1045 120619 1606 1o-Xylene ND

291 571 ugSample 112919 1045 120619 1606 1sec-Butylbenzene ND

291 629 ugSample 112919 1045 120619 1606 1Styrene ND

291 512 ugSample 112919 1045 120619 1606 1tert-Butylbenzene ND

291 384 ugSample 112919 1045 120619 1606 1Tetrachloroethene ND

291 536 ugSample 112919 1045 120619 1606 1Toluene ND

291 303 ugSample 112919 1045 120619 1606 1trans-12-Dichloroethene ND

291 102 ugSample 112919 1045 120619 1606 1trans-13-Dichloropropene ND

291 210 ugSample 112919 1045 120619 1606 1Trichloroethene ND

582 559 ugSample 112919 1045 120619 1606 1Trichlorofluoromethane ND

582 140 ugSample 112919 1045 120619 1606 1Vinyl chloride ND

Cyclohexane 424 T J N ugSample 442 110-82-7 112919 1045 120619 1606 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1045 120619 1606 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 112919 1045 120619 1606 157 - 152

Dibromofluoromethane (Surr) 104 112919 1045 120619 1606 162 - 134

Toluene-d8 (Surr) 98 112919 1045 120619 1606 171 - 139

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12232019Page 19 of 820143

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-3Client Sample ID A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 6110 J 6210 3110 ugSample 112919 1045 121319 2235 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2560 1160 ugSample 112919 1045 121819 1401 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1044 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 129 50 - 200 120419 1005 120819 1044 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-4Client Sample ID A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 304 402 ugSample 112919 1045 120619 1631 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

608 608 ugSample 112919 1045 120619 1631 111133-Pentafluorobutane ND

304 438 ugSample 112919 1045 120619 1631 1111-Trichloroethane ND

608 120 ugSample 112919 1045 120619 1631 1111-Trifluoro-22-dichloroethane ND

608 608 ugSample 112919 1045 120619 1631 1111-Trifluoroethane ND

304 584 ugSample 112919 1045 120619 1631 11122-Tetrachloroethane ND

608 341 ugSample 112919 1045 120619 1631 1112-Trichloro-122-trifluoroethane ND

608 608 ugSample 112919 1045 120619 1631 1112-trichloro-1-fluoroethane ND

304 316 ugSample 112919 1045 120619 1631 1112-Trichloroethane ND

608 304 ugSample 112919 1045 120619 1631 111-Dichloro-1-fluoroethane ND

608 608 ugSample 112919 1045 120619 1631 111-dichloro-22-difluoroethane ND

608 608 ugSample 112919 1045 120619 1631 111-dichloro-22-difluoroethene ND

304 365 ugSample 112919 1045 120619 1631 111-Dichloroethane ND

304 450 ugSample 112919 1045 120619 1631 111-Dichloroethene ND

304 329 ugSample 112919 1045 120619 1631 111-Dichloropropene ND

608 608 ugSample 112919 1045 120619 1631 111-Difluoroethene ND

608 608 ugSample 112919 1045 120619 1631 1122-trichloro-11-difluoroethane ND

304 974 ugSample 112919 1045 120619 1631 1123-Trichlorobenzene ND

304 754 ugSample 112919 1045 120619 1631 1123-Trichloropropane ND

304 102 ugSample 112919 1045 120619 1631 1124-Trichlorobenzene ND

304 633 ugSample 112919 1045 120619 1631 1124-Trimethylbenzene ND

608 107 ugSample 112919 1045 120619 1631 112-Dibromo-3-Chloropropane ND

304 402 ugSample 112919 1045 120619 1631 112-Dibromoethane (EDB) ND

608 608 ugSample 112919 1045 120619 1631 112-dichloro-11-difluoroethane ND

304 535 ugSample 112919 1045 120619 1631 112-Dichlorobenzene ND

304 511 ugSample 112919 1045 120619 1631 112-Dichloroethane ND

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12232019Page 20 of 820144

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-4Client Sample ID A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

12-Dichloropropane ND 304 304 ugSample 112919 1045 120619 1631 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

304 633 ugSample 112919 1045 120619 1631 1135-Trimethylbenzene ND

304 523 ugSample 112919 1045 120619 1631 113-Dichlorobenzene ND

304 341 ugSample 112919 1045 120619 1631 113-Dichloropropane ND

304 608 ugSample 112919 1045 120619 1631 114-Dichlorobenzene ND

608 621 ugSample 112919 1045 120619 1631 11-Chloro-11-difluoroethane ND

608 608 ugSample 112919 1045 120619 1631 122-dichloro-11-difluoroethylmethyl

ether

ND

304 888 ugSample 112919 1045 120619 1631 122-Dichloropropane ND

122 195 ugSample 112919 1045 120619 1631 12-Butanone (MEK) ND

608 901 ugSample 112919 1045 120619 1631 12-chloro-111444-hexafluoro-2-but

ene

ND

608 608 ugSample 112919 1045 120619 1631 12-Chloro-111-Trifluoroethane ND

304 572 ugSample 112919 1045 120619 1631 12-Chlorotoluene ND

122 280 ugSample 112919 1045 120619 1631 12-Hexanone ND

266 266 ugSample 112919 1045 120619 1631 12-MTP as HFPO ND

304 633 ugSample 112919 1045 120619 1631 14-Chlorotoluene ND

304 815 ugSample 112919 1045 120619 1631 14-Isopropyltoluene ND

122 195 ugSample 112919 1045 120619 1631 14-Methyl-2-pentanone (MIBK) ND

122 718 ugSample 112919 1045 120619 1631 1Acetone ND

304 584 ugSample 112919 1045 120619 1631 1Benzene ND

304 426 ugSample 112919 1045 120619 1631 1Bromobenzene ND

304 681 ugSample 112919 1045 120619 1631 1Bromochloromethane ND

304 523 ugSample 112919 1045 120619 1631 1Bromodichloromethane ND

304 925 ugSample 112919 1045 120619 1631 1Bromoform ND

608 353 ugSample 112919 1045 120619 1631 1Bromomethane ND

304 754 ugSample 112919 1045 120619 1631 1Carbon disulfide ND

304 402 ugSample 112919 1045 120619 1631 1Carbon tetrachloride ND

894 894 ugSample 112919 1045 120619 1631 1Carbonyl Difluoride ND

304 438 ugSample 112919 1045 120619 1631 1Chlorobenzene ND

304 657 ugSample 112919 1045 120619 1631 1Chlorodibromomethane ND

608 134 ugSample 112919 1045 120619 1631 1Chloroethane ND

304 353 ugSample 112919 1045 120619 1631 1Chloroform ND

608 253 ugSample 112919 1045 120619 1631 1Chloromethane ND

304 243 ugSample 112919 1045 120619 1631 1cis-12-Dichloroethene ND

304 523 ugSample 112919 1045 120619 1631 1cis-13-Dichloropropene ND

304 292 ugSample 112919 1045 120619 1631 1Dibromomethane ND

608 107 ugSample 112919 1045 120619 1631 1Dichlorodifluoromethane ND

304 499 ugSample 112919 1045 120619 1631 1Ethylbenzene ND

304 304 ugSample 112919 1045 120619 1631 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

304 803 ugSample 112919 1045 120619 1631 1Hexachlorobutadiene ND

292 292 ugSample 112919 1045 120619 1631 1HFPO dimer methyl ester as

HFPO-DA

ND

304 426 ugSample 112919 1045 120619 1631 1Isopropylbenzene ND

608 499 ugSample 112919 1045 120619 1631 1mp-Xylene ND

304 195 ugSample 112919 1045 120619 1631 1Methylene Chloride ND

304 146 ugSample 112919 1045 120619 1631 1Naphthalene ND

Eurofins TestAmerica Knoxville

12232019Page 21 of 820145

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-4Client Sample ID A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

n-Butylbenzene ND 304 779 ugSample 112919 1045 120619 1631 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

304 657 ugSample 112919 1045 120619 1631 1n-Propylbenzene ND

304 316 ugSample 112919 1045 120619 1631 1o-Xylene ND

304 596 ugSample 112919 1045 120619 1631 1sec-Butylbenzene ND

304 657 ugSample 112919 1045 120619 1631 1Styrene ND

304 535 ugSample 112919 1045 120619 1631 1tert-Butylbenzene ND

304 402 ugSample 112919 1045 120619 1631 1Tetrachloroethene ND

304 560 ugSample 112919 1045 120619 1631 1Toluene ND

304 316 ugSample 112919 1045 120619 1631 1trans-12-Dichloroethene ND

304 107 ugSample 112919 1045 120619 1631 1trans-13-Dichloropropene ND

304 219 ugSample 112919 1045 120619 1631 1Trichloroethene ND

608 584 ugSample 112919 1045 120619 1631 1Trichlorofluoromethane ND

608 146 ugSample 112919 1045 120619 1631 1Vinyl chloride ND

Cyclohexane 454 T J N ugSample 442 110-82-7 112919 1045 120619 1631 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 118 70 - 160 112919 1045 120619 1631 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 110 112919 1045 120619 1631 157 - 152

Dibromofluoromethane (Surr) 104 112919 1045 120619 1631 162 - 134

Toluene-d8 (Surr) 96 112919 1045 120619 1631 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 4170 J 6490 3250 ugSample 112919 1045 121319 2256 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2680 1220 ugSample 112919 1045 121819 1421 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1047 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 126 50 - 200 120419 1005 120819 1047 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1503 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-5Client Sample ID A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 269 355 ugSample 112919 1045 120619 1655 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

538 538 ugSample 112919 1045 120619 1655 111133-Pentafluorobutane ND

Eurofins TestAmerica Knoxville

12232019Page 22 of 820146

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-5Client Sample ID A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

111-Trichloroethane ND 269 387 ugSample 112919 1045 120619 1655 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

538 106 ugSample 112919 1045 120619 1655 1111-Trifluoro-22-dichloroethane ND

538 538 ugSample 112919 1045 120619 1655 1111-Trifluoroethane ND

269 516 ugSample 112919 1045 120619 1655 11122-Tetrachloroethane ND

538 301 ugSample 112919 1045 120619 1655 1112-Trichloro-122-trifluoroethane ND

538 538 ugSample 112919 1045 120619 1655 1112-trichloro-1-fluoroethane ND

269 280 ugSample 112919 1045 120619 1655 1112-Trichloroethane ND

538 269 ugSample 112919 1045 120619 1655 111-Dichloro-1-fluoroethane ND

538 538 ugSample 112919 1045 120619 1655 111-dichloro-22-difluoroethane ND

538 538 ugSample 112919 1045 120619 1655 111-dichloro-22-difluoroethene ND

269 323 ugSample 112919 1045 120619 1655 111-Dichloroethane ND

269 398 ugSample 112919 1045 120619 1655 111-Dichloroethene ND

269 290 ugSample 112919 1045 120619 1655 111-Dichloropropene ND

538 538 ugSample 112919 1045 120619 1655 111-Difluoroethene ND

538 538 ugSample 112919 1045 120619 1655 1122-trichloro-11-difluoroethane ND

269 860 ugSample 112919 1045 120619 1655 1123-Trichlorobenzene ND

269 667 ugSample 112919 1045 120619 1655 1123-Trichloropropane ND

269 903 ugSample 112919 1045 120619 1655 1124-Trichlorobenzene ND

269 559 ugSample 112919 1045 120619 1655 1124-Trimethylbenzene ND

538 946 ugSample 112919 1045 120619 1655 112-Dibromo-3-Chloropropane ND

269 355 ugSample 112919 1045 120619 1655 112-Dibromoethane (EDB) ND

538 538 ugSample 112919 1045 120619 1655 112-dichloro-11-difluoroethane ND

269 473 ugSample 112919 1045 120619 1655 112-Dichlorobenzene ND

269 452 ugSample 112919 1045 120619 1655 112-Dichloroethane ND

269 269 ugSample 112919 1045 120619 1655 112-Dichloropropane ND

269 559 ugSample 112919 1045 120619 1655 1135-Trimethylbenzene ND

269 462 ugSample 112919 1045 120619 1655 113-Dichlorobenzene ND

269 301 ugSample 112919 1045 120619 1655 113-Dichloropropane ND

269 538 ugSample 112919 1045 120619 1655 114-Dichlorobenzene ND

538 548 ugSample 112919 1045 120619 1655 11-Chloro-11-difluoroethane ND

538 538 ugSample 112919 1045 120619 1655 122-dichloro-11-difluoroethylmethyl

ether

ND

269 785 ugSample 112919 1045 120619 1655 122-Dichloropropane ND

108 172 ugSample 112919 1045 120619 1655 12-Butanone (MEK) ND

538 796 ugSample 112919 1045 120619 1655 12-chloro-111444-hexafluoro-2-but

ene

ND

538 538 ugSample 112919 1045 120619 1655 12-Chloro-111-Trifluoroethane ND

269 505 ugSample 112919 1045 120619 1655 12-Chlorotoluene ND

108 247 ugSample 112919 1045 120619 1655 12-Hexanone ND

235 235 ugSample 112919 1045 120619 1655 12-MTP as HFPO ND

269 559 ugSample 112919 1045 120619 1655 14-Chlorotoluene ND

269 720 ugSample 112919 1045 120619 1655 14-Isopropyltoluene ND

108 172 ugSample 112919 1045 120619 1655 14-Methyl-2-pentanone (MIBK) ND

108 634 ugSample 112919 1045 120619 1655 1Acetone ND

269 516 ugSample 112919 1045 120619 1655 1Benzene ND

269 376 ugSample 112919 1045 120619 1655 1Bromobenzene ND

269 602 ugSample 112919 1045 120619 1655 1Bromochloromethane ND

269 462 ugSample 112919 1045 120619 1655 1Bromodichloromethane ND

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12232019Page 23 of 820147

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-5Client Sample ID A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromoform ND 269 817 ugSample 112919 1045 120619 1655 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

538 312 ugSample 112919 1045 120619 1655 1Bromomethane ND

269 667 ugSample 112919 1045 120619 1655 1Carbon disulfide ND

269 355 ugSample 112919 1045 120619 1655 1Carbon tetrachloride ND

791 791 ugSample 112919 1045 120619 1655 1Carbonyl Difluoride ND

269 387 ugSample 112919 1045 120619 1655 1Chlorobenzene ND

269 581 ugSample 112919 1045 120619 1655 1Chlorodibromomethane ND

538 118 ugSample 112919 1045 120619 1655 1Chloroethane ND

269 312 ugSample 112919 1045 120619 1655 1Chloroform ND

538 224 ugSample 112919 1045 120619 1655 1Chloromethane ND

269 215 ugSample 112919 1045 120619 1655 1cis-12-Dichloroethene ND

269 462 ugSample 112919 1045 120619 1655 1cis-13-Dichloropropene ND

269 258 ugSample 112919 1045 120619 1655 1Dibromomethane ND

538 946 ugSample 112919 1045 120619 1655 1Dichlorodifluoromethane ND

269 441 ugSample 112919 1045 120619 1655 1Ethylbenzene ND

269 269 ugSample 112919 1045 120619 1655 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

269 710 ugSample 112919 1045 120619 1655 1Hexachlorobutadiene ND

258 258 ugSample 112919 1045 120619 1655 1HFPO dimer methyl ester as

HFPO-DA

ND

269 376 ugSample 112919 1045 120619 1655 1Isopropylbenzene ND

538 441 ugSample 112919 1045 120619 1655 1mp-Xylene ND

269 172 ugSample 112919 1045 120619 1655 1Methylene Chloride ND

269 129 ugSample 112919 1045 120619 1655 1Naphthalene ND

269 688 ugSample 112919 1045 120619 1655 1n-Butylbenzene ND

269 581 ugSample 112919 1045 120619 1655 1n-Propylbenzene ND

269 280 ugSample 112919 1045 120619 1655 1o-Xylene ND

269 527 ugSample 112919 1045 120619 1655 1sec-Butylbenzene ND

269 581 ugSample 112919 1045 120619 1655 1Styrene ND

269 473 ugSample 112919 1045 120619 1655 1tert-Butylbenzene ND

269 355 ugSample 112919 1045 120619 1655 1Tetrachloroethene ND

269 495 ugSample 112919 1045 120619 1655 1Toluene ND

269 280 ugSample 112919 1045 120619 1655 1trans-12-Dichloroethene ND

269 946 ugSample 112919 1045 120619 1655 1trans-13-Dichloropropene ND

269 194 ugSample 112919 1045 120619 1655 1Trichloroethene ND

538 516 ugSample 112919 1045 120619 1655 1Trichlorofluoromethane ND

538 129 ugSample 112919 1045 120619 1655 1Vinyl chloride ND

Cyclohexane 436 T J N ugSample 442 110-82-7 112919 1045 120619 1655 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 118 70 - 160 112919 1045 120619 1655 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1045 120619 1655 157 - 152

Dibromofluoromethane (Surr) 103 112919 1045 120619 1655 162 - 134

Toluene-d8 (Surr) 96 112919 1045 120619 1655 171 - 139

Eurofins TestAmerica Knoxville

12232019Page 24 of 820148

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-5Client Sample ID A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine ND 5730 2870 ugSample 112919 1045 121319 2316 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2370 1080 ugSample 112919 1045 121819 1442 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1053 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 125 50 - 200 120419 1005 120819 1053 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1503 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-6Client Sample ID A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 291 384 ugSample 112919 1045 120619 1720 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

582 582 ugSample 112919 1045 120619 1720 111133-Pentafluorobutane ND

291 419 ugSample 112919 1045 120619 1720 1111-Trichloroethane ND

582 115 ugSample 112919 1045 120619 1720 1111-Trifluoro-22-dichloroethane ND

582 582 ugSample 112919 1045 120619 1720 1111-Trifluoroethane ND

291 559 ugSample 112919 1045 120619 1720 11122-Tetrachloroethane ND

582 326 ugSample 112919 1045 120619 1720 1112-Trichloro-122-trifluoroethane ND

582 582 ugSample 112919 1045 120619 1720 1112-trichloro-1-fluoroethane ND

291 303 ugSample 112919 1045 120619 1720 1112-Trichloroethane ND

582 291 ugSample 112919 1045 120619 1720 111-Dichloro-1-fluoroethane ND

582 582 ugSample 112919 1045 120619 1720 111-dichloro-22-difluoroethane ND

582 582 ugSample 112919 1045 120619 1720 111-dichloro-22-difluoroethene ND

291 349 ugSample 112919 1045 120619 1720 111-Dichloroethane ND

291 431 ugSample 112919 1045 120619 1720 111-Dichloroethene ND

291 314 ugSample 112919 1045 120619 1720 111-Dichloropropene ND

582 582 ugSample 112919 1045 120619 1720 111-Difluoroethene ND

582 582 ugSample 112919 1045 120619 1720 1122-trichloro-11-difluoroethane ND

291 931 ugSample 112919 1045 120619 1720 1123-Trichlorobenzene ND

291 722 ugSample 112919 1045 120619 1720 1123-Trichloropropane ND

291 978 ugSample 112919 1045 120619 1720 1124-Trichlorobenzene ND

291 605 ugSample 112919 1045 120619 1720 1124-Trimethylbenzene ND

582 102 ugSample 112919 1045 120619 1720 112-Dibromo-3-Chloropropane ND

291 384 ugSample 112919 1045 120619 1720 112-Dibromoethane (EDB) ND

582 582 ugSample 112919 1045 120619 1720 112-dichloro-11-difluoroethane ND

291 512 ugSample 112919 1045 120619 1720 112-Dichlorobenzene ND

291 489 ugSample 112919 1045 120619 1720 112-Dichloroethane ND

Eurofins TestAmerica Knoxville

12232019Page 25 of 820149

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-6Client Sample ID A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

12-Dichloropropane ND 291 291 ugSample 112919 1045 120619 1720 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

291 605 ugSample 112919 1045 120619 1720 1135-Trimethylbenzene ND

291 501 ugSample 112919 1045 120619 1720 113-Dichlorobenzene ND

291 326 ugSample 112919 1045 120619 1720 113-Dichloropropane ND

291 582 ugSample 112919 1045 120619 1720 114-Dichlorobenzene ND

582 594 ugSample 112919 1045 120619 1720 11-Chloro-11-difluoroethane ND

582 582 ugSample 112919 1045 120619 1720 122-dichloro-11-difluoroethylmethyl

ether

ND

291 850 ugSample 112919 1045 120619 1720 122-Dichloropropane ND

116 186 ugSample 112919 1045 120619 1720 12-Butanone (MEK) ND

582 861 ugSample 112919 1045 120619 1720 12-chloro-111444-hexafluoro-2-but

ene

ND

582 582 ugSample 112919 1045 120619 1720 12-Chloro-111-Trifluoroethane ND

291 547 ugSample 112919 1045 120619 1720 12-Chlorotoluene ND

116 268 ugSample 112919 1045 120619 1720 12-Hexanone ND

254 254 ugSample 112919 1045 120619 1720 12-MTP as HFPO ND

291 605 ugSample 112919 1045 120619 1720 14-Chlorotoluene ND

291 780 ugSample 112919 1045 120619 1720 14-Isopropyltoluene ND

116 186 ugSample 112919 1045 120619 1720 14-Methyl-2-pentanone (MIBK) ND

116 687 ugSample 112919 1045 120619 1720 1Acetone ND

291 559 ugSample 112919 1045 120619 1720 1Benzene ND

291 407 ugSample 112919 1045 120619 1720 1Bromobenzene ND

291 652 ugSample 112919 1045 120619 1720 1Bromochloromethane ND

291 501 ugSample 112919 1045 120619 1720 1Bromodichloromethane ND

291 885 ugSample 112919 1045 120619 1720 1Bromoform ND

582 338 ugSample 112919 1045 120619 1720 1Bromomethane ND

291 722 ugSample 112919 1045 120619 1720 1Carbon disulfide ND

291 384 ugSample 112919 1045 120619 1720 1Carbon tetrachloride ND

850 850 ugSample 112919 1045 120619 1720 1Carbonyl Difluoride ND

291 419 ugSample 112919 1045 120619 1720 1Chlorobenzene ND

291 629 ugSample 112919 1045 120619 1720 1Chlorodibromomethane ND

582 128 ugSample 112919 1045 120619 1720 1Chloroethane ND

291 338 ugSample 112919 1045 120619 1720 1Chloroform ND

582 242 ugSample 112919 1045 120619 1720 1Chloromethane ND

291 233 ugSample 112919 1045 120619 1720 1cis-12-Dichloroethene ND

291 501 ugSample 112919 1045 120619 1720 1cis-13-Dichloropropene ND

291 279 ugSample 112919 1045 120619 1720 1Dibromomethane ND

582 102 ugSample 112919 1045 120619 1720 1Dichlorodifluoromethane ND

291 477 ugSample 112919 1045 120619 1720 1Ethylbenzene ND

291 291 ugSample 112919 1045 120619 1720 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

291 768 ugSample 112919 1045 120619 1720 1Hexachlorobutadiene ND

279 279 ugSample 112919 1045 120619 1720 1HFPO dimer methyl ester as

HFPO-DA

ND

291 407 ugSample 112919 1045 120619 1720 1Isopropylbenzene ND

582 477 ugSample 112919 1045 120619 1720 1mp-Xylene ND

291 186 ugSample 112919 1045 120619 1720 1Methylene Chloride ND

291 140 ugSample 112919 1045 120619 1720 1Naphthalene ND

Eurofins TestAmerica Knoxville

12232019Page 26 of 820150

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-6Client Sample ID A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

n-Butylbenzene ND 291 745 ugSample 112919 1045 120619 1720 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

291 629 ugSample 112919 1045 120619 1720 1n-Propylbenzene ND

291 303 ugSample 112919 1045 120619 1720 1o-Xylene ND

291 570 ugSample 112919 1045 120619 1720 1sec-Butylbenzene ND

291 629 ugSample 112919 1045 120619 1720 1Styrene ND

291 512 ugSample 112919 1045 120619 1720 1tert-Butylbenzene ND

291 384 ugSample 112919 1045 120619 1720 1Tetrachloroethene ND

291 535 ugSample 112919 1045 120619 1720 1Toluene ND

291 303 ugSample 112919 1045 120619 1720 1trans-12-Dichloroethene ND

291 102 ugSample 112919 1045 120619 1720 1trans-13-Dichloropropene ND

291 210 ugSample 112919 1045 120619 1720 1Trichloroethene ND

582 559 ugSample 112919 1045 120619 1720 1Trichlorofluoromethane ND

582 140 ugSample 112919 1045 120619 1720 1Vinyl chloride ND

Tentatively Identified Compound None ugSample 112919 1045 120619 1720 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 119 70 - 160 112919 1045 120619 1720 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1045 120619 1720 157 - 152

Dibromofluoromethane (Surr) 104 112919 1045 120619 1720 162 - 134

Toluene-d8 (Surr) 96 112919 1045 120619 1720 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine ND 6480 3240 ugSample 112919 1045 121319 2337 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2560 1160 ugSample 112919 1045 121819 1503 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1057 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 127 50 - 200 120419 1005 120819 1057 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1503 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-7Client Sample ID A-5786 QC MEOH RBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 203 268 ugSample 112919 1045 120619 1404 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

406 406 ugSample 112919 1045 120619 1404 111133-Pentafluorobutane ND

203 293 ugSample 112919 1045 120619 1404 1111-Trichloroethane ND

Eurofins TestAmerica Knoxville

12232019Page 27 of 820151

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-7Client Sample ID A-5786 QC MEOH RBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

111-Trifluoro-22-dichloroethane ND 406 804 ugSample 112919 1045 120619 1404 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

406 406 ugSample 112919 1045 120619 1404 1111-Trifluoroethane ND

203 390 ugSample 112919 1045 120619 1404 11122-Tetrachloroethane ND

406 228 ugSample 112919 1045 120619 1404 1112-Trichloro-122-trifluoroethane ND

406 406 ugSample 112919 1045 120619 1404 1112-trichloro-1-fluoroethane ND

203 211 ugSample 112919 1045 120619 1404 1112-Trichloroethane ND

406 203 ugSample 112919 1045 120619 1404 111-Dichloro-1-fluoroethane ND

406 406 ugSample 112919 1045 120619 1404 111-dichloro-22-difluoroethane ND

406 406 ugSample 112919 1045 120619 1404 111-dichloro-22-difluoroethene ND

203 244 ugSample 112919 1045 120619 1404 111-Dichloroethane ND

203 301 ugSample 112919 1045 120619 1404 111-Dichloroethene ND

203 219 ugSample 112919 1045 120619 1404 111-Dichloropropene ND

406 406 ugSample 112919 1045 120619 1404 111-Difluoroethene ND

406 406 ugSample 112919 1045 120619 1404 1122-trichloro-11-difluoroethane ND

203 650 ugSample 112919 1045 120619 1404 1123-Trichlorobenzene ND

203 504 ugSample 112919 1045 120619 1404 1123-Trichloropropane ND

203 683 ugSample 112919 1045 120619 1404 1124-Trichlorobenzene ND

203 423 ugSample 112919 1045 120619 1404 1124-Trimethylbenzene ND

406 715 ugSample 112919 1045 120619 1404 112-Dibromo-3-Chloropropane ND

203 268 ugSample 112919 1045 120619 1404 112-Dibromoethane (EDB) ND

406 406 ugSample 112919 1045 120619 1404 112-dichloro-11-difluoroethane ND

203 358 ugSample 112919 1045 120619 1404 112-Dichlorobenzene ND

203 341 ugSample 112919 1045 120619 1404 112-Dichloroethane ND

203 203 ugSample 112919 1045 120619 1404 112-Dichloropropane ND

203 423 ugSample 112919 1045 120619 1404 1135-Trimethylbenzene ND

203 349 ugSample 112919 1045 120619 1404 113-Dichlorobenzene ND

203 228 ugSample 112919 1045 120619 1404 113-Dichloropropane ND

203 406 ugSample 112919 1045 120619 1404 114-Dichlorobenzene ND

406 414 ugSample 112919 1045 120619 1404 11-Chloro-11-difluoroethane ND

406 406 ugSample 112919 1045 120619 1404 122-dichloro-11-difluoroethylmethyl

ether

ND

203 593 ugSample 112919 1045 120619 1404 122-Dichloropropane ND

813 130 ugSample 112919 1045 120619 1404 12-Butanone (MEK) ND

406 601 ugSample 112919 1045 120619 1404 12-chloro-111444-hexafluoro-2-but

ene

ND

406 406 ugSample 112919 1045 120619 1404 12-Chloro-111-Trifluoroethane ND

203 382 ugSample 112919 1045 120619 1404 12-Chlorotoluene ND

813 187 ugSample 112919 1045 120619 1404 12-Hexanone ND

177 177 ugSample 112919 1045 120619 1404 12-MTP as HFPO ND

203 423 ugSample 112919 1045 120619 1404 14-Chlorotoluene ND

203 544 ugSample 112919 1045 120619 1404 14-Isopropyltoluene ND

813 130 ugSample 112919 1045 120619 1404 14-Methyl-2-pentanone (MIBK) ND

813 479 ugSample 112919 1045 120619 1404 1Acetone ND

203 390 ugSample 112919 1045 120619 1404 1Benzene ND

203 284 ugSample 112919 1045 120619 1404 1Bromobenzene ND

203 455 ugSample 112919 1045 120619 1404 1Bromochloromethane ND

203 349 ugSample 112919 1045 120619 1404 1Bromodichloromethane ND

203 618 ugSample 112919 1045 120619 1404 1Bromoform ND

406 236 ugSample 112919 1045 120619 1404 1Bromomethane ND

Eurofins TestAmerica Knoxville

12232019Page 28 of 820152

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-7Client Sample ID A-5786 QC MEOH RBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Carbon disulfide ND 203 504 ugSample 112919 1045 120619 1404 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

203 268 ugSample 112919 1045 120619 1404 1Carbon tetrachloride ND

596 596 ugSample 112919 1045 120619 1404 1Carbonyl Difluoride ND

203 293 ugSample 112919 1045 120619 1404 1Chlorobenzene ND

203 439 ugSample 112919 1045 120619 1404 1Chlorodibromomethane ND

406 894 ugSample 112919 1045 120619 1404 1Chloroethane ND

203 236 ugSample 112919 1045 120619 1404 1Chloroform ND

406 169 ugSample 112919 1045 120619 1404 1Chloromethane ND

203 163 ugSample 112919 1045 120619 1404 1cis-12-Dichloroethene ND

203 349 ugSample 112919 1045 120619 1404 1cis-13-Dichloropropene ND

203 195 ugSample 112919 1045 120619 1404 1Dibromomethane ND

406 715 ugSample 112919 1045 120619 1404 1Dichlorodifluoromethane ND

203 333 ugSample 112919 1045 120619 1404 1Ethylbenzene ND

203 203 ugSample 112919 1045 120619 1404 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

203 536 ugSample 112919 1045 120619 1404 1Hexachlorobutadiene ND

195 195 ugSample 112919 1045 120619 1404 1HFPO dimer methyl ester as

HFPO-DA

ND

203 284 ugSample 112919 1045 120619 1404 1Isopropylbenzene ND

406 333 ugSample 112919 1045 120619 1404 1mp-Xylene ND

203 130 ugSample 112919 1045 120619 1404 1Methylene Chloride 131 J B

203 975 ugSample 112919 1045 120619 1404 1Naphthalene ND

203 520 ugSample 112919 1045 120619 1404 1n-Butylbenzene ND

203 439 ugSample 112919 1045 120619 1404 1n-Propylbenzene ND

203 211 ugSample 112919 1045 120619 1404 1o-Xylene ND

203 398 ugSample 112919 1045 120619 1404 1sec-Butylbenzene ND

203 439 ugSample 112919 1045 120619 1404 1Styrene ND

203 358 ugSample 112919 1045 120619 1404 1tert-Butylbenzene ND

203 268 ugSample 112919 1045 120619 1404 1Tetrachloroethene ND

203 374 ugSample 112919 1045 120619 1404 1Toluene ND

203 211 ugSample 112919 1045 120619 1404 1trans-12-Dichloroethene ND

203 715 ugSample 112919 1045 120619 1404 1trans-13-Dichloropropene ND

203 146 ugSample 112919 1045 120619 1404 1Trichloroethene ND

406 390 ugSample 112919 1045 120619 1404 1Trichlorofluoromethane ND

406 975 ugSample 112919 1045 120619 1404 1Vinyl chloride ND

Cyclohexane 349 T J N ugSample 442 110-82-7 112919 1045 120619 1404 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 116 70 - 160 112919 1045 120619 1404 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 110 112919 1045 120619 1404 157 - 152

Dibromofluoromethane (Surr) 104 112919 1045 120619 1404 162 - 134

Toluene-d8 (Surr) 97 112919 1045 120619 1404 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine ND 4330 2170 ugSample 112919 1045 121319 2358 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

1790 813 ugSample 112919 1045 121819 1524 20Hydrogen Fluoride ND

Eurofins TestAmerica Knoxville

12232019Page 29 of 820153

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-7Client Sample ID A-5786 QC MEOH RBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 00106 J 00250 000500 ugSample 120419 1005 120819 1100 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 125 50 - 200 120419 1005 120819 1100 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1503 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-8Client Sample ID A-5787 QC MEOH TBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 154 203 ugSample 112919 1045 120619 1428 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

308 308 ugSample 112919 1045 120619 1428 111133-Pentafluorobutane ND

154 222 ugSample 112919 1045 120619 1428 1111-Trichloroethane ND

308 609 ugSample 112919 1045 120619 1428 1111-Trifluoro-22-dichloroethane ND

308 308 ugSample 112919 1045 120619 1428 1111-Trifluoroethane ND

154 295 ugSample 112919 1045 120619 1428 11122-Tetrachloroethane ND

308 172 ugSample 112919 1045 120619 1428 1112-Trichloro-122-trifluoroethane ND

308 308 ugSample 112919 1045 120619 1428 1112-trichloro-1-fluoroethane ND

154 160 ugSample 112919 1045 120619 1428 1112-Trichloroethane ND

308 154 ugSample 112919 1045 120619 1428 111-Dichloro-1-fluoroethane ND

308 308 ugSample 112919 1045 120619 1428 111-dichloro-22-difluoroethane ND

308 308 ugSample 112919 1045 120619 1428 111-dichloro-22-difluoroethene ND

154 185 ugSample 112919 1045 120619 1428 111-Dichloroethane ND

154 228 ugSample 112919 1045 120619 1428 111-Dichloroethene ND

154 166 ugSample 112919 1045 120619 1428 111-Dichloropropene ND

308 308 ugSample 112919 1045 120619 1428 111-Difluoroethene ND

308 308 ugSample 112919 1045 120619 1428 1122-trichloro-11-difluoroethane ND

154 492 ugSample 112919 1045 120619 1428 1123-Trichlorobenzene ND

154 382 ugSample 112919 1045 120619 1428 1123-Trichloropropane ND

154 517 ugSample 112919 1045 120619 1428 1124-Trichlorobenzene ND

154 320 ugSample 112919 1045 120619 1428 1124-Trimethylbenzene ND

308 542 ugSample 112919 1045 120619 1428 112-Dibromo-3-Chloropropane ND

154 203 ugSample 112919 1045 120619 1428 112-Dibromoethane (EDB) ND

308 308 ugSample 112919 1045 120619 1428 112-dichloro-11-difluoroethane ND

154 271 ugSample 112919 1045 120619 1428 112-Dichlorobenzene ND

154 259 ugSample 112919 1045 120619 1428 112-Dichloroethane ND

154 154 ugSample 112919 1045 120619 1428 112-Dichloropropane ND

154 320 ugSample 112919 1045 120619 1428 1135-Trimethylbenzene ND

154 265 ugSample 112919 1045 120619 1428 113-Dichlorobenzene ND

154 172 ugSample 112919 1045 120619 1428 113-Dichloropropane ND

154 308 ugSample 112919 1045 120619 1428 114-Dichlorobenzene ND

308 314 ugSample 112919 1045 120619 1428 11-Chloro-11-difluoroethane ND

308 308 ugSample 112919 1045 120619 1428 122-dichloro-11-difluoroethylmethyl

ether

ND

Eurofins TestAmerica Knoxville

12232019Page 30 of 820154

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-8Client Sample ID A-5787 QC MEOH TBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

22-Dichloropropane ND 154 449 ugSample 112919 1045 120619 1428 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

616 985 ugSample 112919 1045 120619 1428 12-Butanone (MEK) ND

308 455 ugSample 112919 1045 120619 1428 12-chloro-111444-hexafluoro-2-but

ene

ND

308 308 ugSample 112919 1045 120619 1428 12-Chloro-111-Trifluoroethane ND

154 289 ugSample 112919 1045 120619 1428 12-Chlorotoluene ND

616 142 ugSample 112919 1045 120619 1428 12-Hexanone ND

135 135 ugSample 112919 1045 120619 1428 12-MTP as HFPO ND

154 320 ugSample 112919 1045 120619 1428 14-Chlorotoluene ND

154 412 ugSample 112919 1045 120619 1428 14-Isopropyltoluene ND

616 985 ugSample 112919 1045 120619 1428 14-Methyl-2-pentanone (MIBK) ND

616 363 ugSample 112919 1045 120619 1428 1Acetone ND

154 295 ugSample 112919 1045 120619 1428 1Benzene ND

154 215 ugSample 112919 1045 120619 1428 1Bromobenzene ND

154 345 ugSample 112919 1045 120619 1428 1Bromochloromethane ND

154 265 ugSample 112919 1045 120619 1428 1Bromodichloromethane ND

154 468 ugSample 112919 1045 120619 1428 1Bromoform ND

308 178 ugSample 112919 1045 120619 1428 1Bromomethane ND

154 382 ugSample 112919 1045 120619 1428 1Carbon disulfide ND

154 203 ugSample 112919 1045 120619 1428 1Carbon tetrachloride ND

451 451 ugSample 112919 1045 120619 1428 1Carbonyl Difluoride ND

154 222 ugSample 112919 1045 120619 1428 1Chlorobenzene ND

154 332 ugSample 112919 1045 120619 1428 1Chlorodibromomethane ND

308 677 ugSample 112919 1045 120619 1428 1Chloroethane ND

154 178 ugSample 112919 1045 120619 1428 1Chloroform ND

308 128 ugSample 112919 1045 120619 1428 1Chloromethane ND

154 123 ugSample 112919 1045 120619 1428 1cis-12-Dichloroethene ND

154 265 ugSample 112919 1045 120619 1428 1cis-13-Dichloropropene ND

154 148 ugSample 112919 1045 120619 1428 1Dibromomethane ND

308 542 ugSample 112919 1045 120619 1428 1Dichlorodifluoromethane ND

154 252 ugSample 112919 1045 120619 1428 1Ethylbenzene ND

154 154 ugSample 112919 1045 120619 1428 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

154 406 ugSample 112919 1045 120619 1428 1Hexachlorobutadiene ND

148 148 ugSample 112919 1045 120619 1428 1HFPO dimer methyl ester as

HFPO-DA

ND

154 215 ugSample 112919 1045 120619 1428 1Isopropylbenzene ND

308 252 ugSample 112919 1045 120619 1428 1mp-Xylene ND

154 985 ugSample 112919 1045 120619 1428 1Methylene Chloride 101 J B

154 739 ugSample 112919 1045 120619 1428 1Naphthalene ND

154 394 ugSample 112919 1045 120619 1428 1n-Butylbenzene ND

154 332 ugSample 112919 1045 120619 1428 1n-Propylbenzene ND

154 160 ugSample 112919 1045 120619 1428 1o-Xylene ND

154 302 ugSample 112919 1045 120619 1428 1sec-Butylbenzene ND

154 332 ugSample 112919 1045 120619 1428 1Styrene ND

154 271 ugSample 112919 1045 120619 1428 1tert-Butylbenzene ND

154 203 ugSample 112919 1045 120619 1428 1Tetrachloroethene ND

154 283 ugSample 112919 1045 120619 1428 1Toluene ND

154 160 ugSample 112919 1045 120619 1428 1trans-12-Dichloroethene ND

Eurofins TestAmerica Knoxville

12232019Page 31 of 820155

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-8Client Sample ID A-5787 QC MEOH TBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

trans-13-Dichloropropene ND 154 542 ugSample 112919 1045 120619 1428 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

154 111 ugSample 112919 1045 120619 1428 1Trichloroethene ND

308 295 ugSample 112919 1045 120619 1428 1Trichlorofluoromethane ND

308 739 ugSample 112919 1045 120619 1428 1Vinyl chloride ND

Cyclohexane 417 T J N ugSample 442 110-82-7 112919 1045 120619 1428 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 119 70 - 160 112919 1045 120619 1428 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 112919 1045 120619 1428 157 - 152

Dibromofluoromethane (Surr) 105 112919 1045 120619 1428 162 - 134

Toluene-d8 (Surr) 96 112919 1045 120619 1428 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 9720 3280 1640 ugSample 112919 1045 121419 0018 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

1350 616 ugSample 112919 1045 121919 0919 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1103 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 125 50 - 200 120419 1005 120819 1103 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1503 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-9Client Sample ID A-5788 QC MEOH PBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 181 238 ugSample 112919 1045 120619 1453 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

361 361 ugSample 112919 1045 120619 1453 111133-Pentafluorobutane ND

181 260 ugSample 112919 1045 120619 1453 1111-Trichloroethane ND

361 715 ugSample 112919 1045 120619 1453 1111-Trifluoro-22-dichloroethane ND

361 361 ugSample 112919 1045 120619 1453 1111-Trifluoroethane ND

181 347 ugSample 112919 1045 120619 1453 11122-Tetrachloroethane ND

361 202 ugSample 112919 1045 120619 1453 1112-Trichloro-122-trifluoroethane ND

361 361 ugSample 112919 1045 120619 1453 1112-trichloro-1-fluoroethane ND

181 188 ugSample 112919 1045 120619 1453 1112-Trichloroethane ND

361 181 ugSample 112919 1045 120619 1453 111-Dichloro-1-fluoroethane ND

361 361 ugSample 112919 1045 120619 1453 111-dichloro-22-difluoroethane ND

361 361 ugSample 112919 1045 120619 1453 111-dichloro-22-difluoroethene ND

181 217 ugSample 112919 1045 120619 1453 111-Dichloroethane ND

Eurofins TestAmerica Knoxville

12232019Page 32 of 820156

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-9Client Sample ID A-5788 QC MEOH PBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

11-Dichloroethene ND 181 267 ugSample 112919 1045 120619 1453 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

181 195 ugSample 112919 1045 120619 1453 111-Dichloropropene ND

361 361 ugSample 112919 1045 120619 1453 111-Difluoroethene ND

361 361 ugSample 112919 1045 120619 1453 1122-trichloro-11-difluoroethane ND

181 578 ugSample 112919 1045 120619 1453 1123-Trichlorobenzene ND

181 448 ugSample 112919 1045 120619 1453 1123-Trichloropropane ND

181 607 ugSample 112919 1045 120619 1453 1124-Trichlorobenzene ND

181 375 ugSample 112919 1045 120619 1453 1124-Trimethylbenzene ND

361 635 ugSample 112919 1045 120619 1453 112-Dibromo-3-Chloropropane ND

181 238 ugSample 112919 1045 120619 1453 112-Dibromoethane (EDB) ND

361 361 ugSample 112919 1045 120619 1453 112-dichloro-11-difluoroethane ND

181 318 ugSample 112919 1045 120619 1453 112-Dichlorobenzene ND

181 303 ugSample 112919 1045 120619 1453 112-Dichloroethane ND

181 181 ugSample 112919 1045 120619 1453 112-Dichloropropane ND

181 375 ugSample 112919 1045 120619 1453 1135-Trimethylbenzene ND

181 311 ugSample 112919 1045 120619 1453 113-Dichlorobenzene ND

181 202 ugSample 112919 1045 120619 1453 113-Dichloropropane ND

181 361 ugSample 112919 1045 120619 1453 114-Dichlorobenzene ND

361 368 ugSample 112919 1045 120619 1453 11-Chloro-11-difluoroethane ND

361 361 ugSample 112919 1045 120619 1453 122-dichloro-11-difluoroethylmethyl

ether

ND

181 527 ugSample 112919 1045 120619 1453 122-Dichloropropane ND

722 116 ugSample 112919 1045 120619 1453 12-Butanone (MEK) ND

361 534 ugSample 112919 1045 120619 1453 12-chloro-111444-hexafluoro-2-but

ene

ND

361 361 ugSample 112919 1045 120619 1453 12-Chloro-111-Trifluoroethane ND

181 339 ugSample 112919 1045 120619 1453 12-Chlorotoluene ND

722 166 ugSample 112919 1045 120619 1453 12-Hexanone ND

158 158 ugSample 112919 1045 120619 1453 12-MTP as HFPO ND

181 375 ugSample 112919 1045 120619 1453 14-Chlorotoluene ND

181 484 ugSample 112919 1045 120619 1453 14-Isopropyltoluene ND

722 116 ugSample 112919 1045 120619 1453 14-Methyl-2-pentanone (MIBK) ND

722 426 ugSample 112919 1045 120619 1453 1Acetone ND

181 347 ugSample 112919 1045 120619 1453 1Benzene ND

181 253 ugSample 112919 1045 120619 1453 1Bromobenzene ND

181 404 ugSample 112919 1045 120619 1453 1Bromochloromethane ND

181 311 ugSample 112919 1045 120619 1453 1Bromodichloromethane ND

181 549 ugSample 112919 1045 120619 1453 1Bromoform ND

361 209 ugSample 112919 1045 120619 1453 1Bromomethane ND

181 448 ugSample 112919 1045 120619 1453 1Carbon disulfide ND

181 238 ugSample 112919 1045 120619 1453 1Carbon tetrachloride ND

529 529 ugSample 112919 1045 120619 1453 1Carbonyl Difluoride ND

181 260 ugSample 112919 1045 120619 1453 1Chlorobenzene ND

181 390 ugSample 112919 1045 120619 1453 1Chlorodibromomethane ND

361 794 ugSample 112919 1045 120619 1453 1Chloroethane ND

181 209 ugSample 112919 1045 120619 1453 1Chloroform ND

361 150 ugSample 112919 1045 120619 1453 1Chloromethane ND

181 144 ugSample 112919 1045 120619 1453 1cis-12-Dichloroethene ND

181 311 ugSample 112919 1045 120619 1453 1cis-13-Dichloropropene ND

Eurofins TestAmerica Knoxville

12232019Page 33 of 820157

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-9Client Sample ID A-5788 QC MEOH PBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Dibromomethane ND 181 173 ugSample 112919 1045 120619 1453 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

361 635 ugSample 112919 1045 120619 1453 1Dichlorodifluoromethane ND

181 296 ugSample 112919 1045 120619 1453 1Ethylbenzene ND

181 181 ugSample 112919 1045 120619 1453 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

181 477 ugSample 112919 1045 120619 1453 1Hexachlorobutadiene ND

174 174 ugSample 112919 1045 120619 1453 1HFPO dimer methyl ester as

HFPO-DA

ND

181 253 ugSample 112919 1045 120619 1453 1Isopropylbenzene ND

361 296 ugSample 112919 1045 120619 1453 1mp-Xylene ND

181 116 ugSample 112919 1045 120619 1453 1Methylene Chloride 136 J B

181 867 ugSample 112919 1045 120619 1453 1Naphthalene ND

181 462 ugSample 112919 1045 120619 1453 1n-Butylbenzene ND

181 390 ugSample 112919 1045 120619 1453 1n-Propylbenzene ND

181 188 ugSample 112919 1045 120619 1453 1o-Xylene ND

181 354 ugSample 112919 1045 120619 1453 1sec-Butylbenzene ND

181 390 ugSample 112919 1045 120619 1453 1Styrene ND

181 318 ugSample 112919 1045 120619 1453 1tert-Butylbenzene ND

181 238 ugSample 112919 1045 120619 1453 1Tetrachloroethene ND

181 332 ugSample 112919 1045 120619 1453 1Toluene ND

181 188 ugSample 112919 1045 120619 1453 1trans-12-Dichloroethene ND

181 635 ugSample 112919 1045 120619 1453 1trans-13-Dichloropropene ND

181 130 ugSample 112919 1045 120619 1453 1Trichloroethene ND

361 347 ugSample 112919 1045 120619 1453 1Trichlorofluoromethane ND

361 867 ugSample 112919 1045 120619 1453 1Vinyl chloride ND

Cyclohexane 280 T J N ugSample 442 110-82-7 112919 1045 120619 1453 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1045 120619 1453 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 108 112919 1045 120619 1453 157 - 152

Dibromofluoromethane (Surr) 104 112919 1045 120619 1453 162 - 134

Toluene-d8 (Surr) 96 112919 1045 120619 1453 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 2450 J 3850 1930 ugSample 112919 1045 121419 0039 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

1590 722 ugSample 112919 1045 121919 0940 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1106 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 131 50 - 200 120419 1005 120819 1106 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1503 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Eurofins TestAmerica Knoxville

12232019Page 34 of 820158

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17462-1ProjectSite VEN MM-18 Field QC

Method 8260B - Volatile Organic Compounds (GCMS)Prep MeOH Prep

2501112-Tetrachloroethane ugSample

Analyte UnitsMDLRL

0330

50011133-Pentafluorobutane ugSample0500

250111-Trichloroethane ugSample0360

500111-Trifluoro-22-dichloroethane ugSample0990

500111-Trifluoroethane ugSample0500

2501122-Tetrachloroethane ugSample0480

500112-Trichloro-122-trifluoroethane ugSample0280

500112-trichloro-1-fluoroethane ugSample0500

250112-Trichloroethane ugSample0260

50011-Dichloro-1-fluoroethane ugSample250

50011-dichloro-22-difluoroethane ugSample0500

50011-dichloro-22-difluoroethene ugSample0500

25011-Dichloroethane ugSample0300

25011-Dichloroethene ugSample0370

25011-Dichloropropene ugSample0270

50011-Difluoroethene ugSample500

500122-trichloro-11-difluoroethane ugSample0500

250123-Trichlorobenzene ugSample0800

250123-Trichloropropane ugSample0620

250124-Trichlorobenzene ugSample0840

250124-Trimethylbenzene ugSample0520

50012-Dibromo-3-Chloropropane ugSample0880

25012-Dibromoethane (EDB) ugSample0330

50012-dichloro-11-difluoroethane ugSample0500

25012-Dichlorobenzene ugSample0440

25012-Dichloroethane ugSample0420

25012-Dichloropropane ugSample0250

250135-Trimethylbenzene ugSample0520

25013-Dichlorobenzene ugSample0430

25013-Dichloropropane ugSample0280

25014-Dichlorobenzene ugSample0500

5001-Chloro-11-difluoroethane ugSample0510

50022-dichloro-11-difluoroethylmethyl ether ugSample0500

25022-Dichloropropane ugSample0730

1002-Butanone (MEK) ugSample160

5002-chloro-111444-hexafluoro-2-butene ugSample0740

5002-Chloro-111-Trifluoroethane ugSample0500

2502-Chlorotoluene ugSample0470

1002-Hexanone ugSample230

2502-MTP as HFPO ugSample250

2504-Chlorotoluene ugSample0520

2504-Isopropyltoluene ugSample0670

1004-Methyl-2-pentanone (MIBK) ugSample160

100Acetone ugSample590

250Benzene ugSample0480

250Bromobenzene ugSample0350

250Bromochloromethane ugSample0560

250Bromodichloromethane ugSample0430

250Bromoform ugSample0760

500Bromomethane ugSample290

250Carbon disulfide ugSample0620

250Carbon tetrachloride ugSample0330

Eurofins TestAmerica Knoxville

12232019Page 35 of 820159

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17462-1ProjectSite VEN MM-18 Field QC

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)Prep MeOH Prep

100Carbonyl Difluoride ugSample

Analyte UnitsMDLRL

100

250Chlorobenzene ugSample0360

250Chlorodibromomethane ugSample0540

500Chloroethane ugSample110

250Chloroform ugSample0290

500Chloromethane ugSample208

250cis-12-Dichloroethene ugSample0200

250cis-13-Dichloropropene ugSample0430

250Dibromomethane ugSample0240

500Dichlorodifluoromethane ugSample0880

250Ethylbenzene ugSample0410

250Heptafluoropropyl 1222-tetrafluoroethyl ether ugSample250

250Hexachlorobutadiene ugSample0660

250HFPO dimer methyl ester as HFPO-DA ugSample250

250Isopropylbenzene ugSample0350

500mp-Xylene ugSample0410

250Methylene Chloride ugSample160

250Naphthalene ugSample120

250n-Butylbenzene ugSample0640

250n-Propylbenzene ugSample0540

250o-Xylene ugSample0260

250sec-Butylbenzene ugSample0490

250Styrene ugSample0540

250tert-Butylbenzene ugSample0440

250Tetrachloroethene ugSample0330

250Toluene ugSample0460

250trans-12-Dichloroethene ugSample0260

250trans-13-Dichloropropene ugSample0880

250Trichloroethene ugSample0180

500Trichlorofluoromethane ugSample0480

500Vinyl chloride ugSample120

Method 9056 - Anions Ion ChromatographyPrep MeOH Prep

110Hydrogen Fluoride ugSample

Analyte UnitsMDLRL

500

1000Total Fluorine ugSample500

Method 8321A - PFOA and PFOSPrep None

0100HFPO-DA ugSample

Analyte UnitsMDLRL

00200

Eurofins TestAmerica Knoxville

12232019Page 36 of 820160

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

APPENDIX D SAMPLE CALCULATIONS

161

123120191101 AM 112219 Div Stack M0010

EXAMPLE CALCULATIONS FORVOLUMETRIC FLOW AND MOISTURE AND ISOKINETICS

Client Chemours Facility Fayetteville NCTest Number Run 1 Test Date 112219Test Location Division Stack Test Period 0826-1022

1 Volume of dry gas sampled at standard conditions (68 deg F 2992 in Hg) dscf

delta H 1764 x Y x Vm x ( Pb + ------------ )

136Vm(std) = --------------------------------------------

(Tm + 460)

14031764 x 09972 x 63136 x ( 3002 + --------------------- )

136Vm(std) = ------------------------------------------------------------ = 64704

5704 + 460

Where

Vm(std) = Volume of gas sample measured by the dry gas metercorrected to standard conditions dscf

Vm = Volume of gas sample measured by the dry gas meterat meter conditions dcf

Pb = Barometric Pressure in Hgdelt H = Average pressure drop across the orifice meter in H2O

Tm = Average dry gas meter temperature deg FY = Dry gas meter calibration factor

1764 = Factor that includes ratio of standard temperature (528 deg R)to standard pressure (2992 in Hg) deg Rin Hg

136 = Specific gravity of mercury

2 Volume of water vapor in the gas sample corrected to standard conditions scf

Vw(std) = (004707 x Vwc) + (004715 x Wwsg)

Vw(std) = ( 004707 x 100 ) + ( 004715 x 244 ) = 162

Where

Vw(std) = Volume of water vapor in the gas sample corrected tostandard conditions scf

Vwc = Volume of liquid condensed in impingers mlWwsg = Weight of water vapor collected in silica gel g

004707 = Factor which includes the density of water(0002201 lbml) the molecular weight of water(180 lblb-mole) the ideal gas constant2185 (in Hg) (ft3)lb-mole)(deg R) absolutetemperature at standard conditions (528 deg R) absolutepressure at standard conditions (2992 in Hg) ft3ml

004715 = Factor which includes the molecular weight of water(180 lblb-mole) the ideal gas constant2185 (in Hg) (ft3)lb-mole)(deg R) absolutetemperature at standard conditions (528 deg R) absolutepressure at standard conditions (2992 in Hg) and4536 glb ft3g

162

123120191101 AM 112219 Div Stack M0010

3 Moisture content

Vw(std)bws = -------------------------

Vw(std) + Vm(std)

162bws = ------------------------- = 0024

162 + 64704

Where

bws = Proportion of water vapor by volume in the gasstream dimensionless

4 Mole fraction of dry gas

Md = 1 - bws

Md = 1 - 0024 = 0976

Where

Md = Mole fraction of dry gas dimensionless

5 Dry molecular weight of gas stream lblb-mole

MWd = ( 0440 x CO2 ) + ( 0320 x O2 ) + ( 0280 x ( N2 + CO) )

MWd = ( 0440 x 00 ) + ( 0320 x 209 ) + (0280 x ( 791 + 000 ))

MWd = 2884

Where

MWd = Dry molecular weight lblb-mole CO2 = Percent carbon dioxide by volume dry basis

O2 = Percent oxygen by volume dry basis N2 = Percent nitrogen by volume dry basis

CO = Percent carbon monoxide by volume dry basis0440 = Molecular weight of carbon dioxide divided by 1000320 = Molecular weight of oxygen divided by 1000280 = Molecular weight of nitrogen or carbon monoxide

divided by 100

6 Actual molecular weight of gas stream (wet basis) lblb-mole

MWs = ( MWd x Md ) + ( 18 x ( 1 - Md ))

MWs = ( 2884 x 0976 ) +( 18 ( 1 - 0976 )) = 2857

Where

MWs = Molecular weight of wet gas lblb-mole18 = Molecular weight of water lblb-mole

163

123120191101 AM 112219 Div Stack M0010

7 Average velocity of gas stream at actual conditions ftsec

Ts (avg)Vs = 8549 x Cp x ((delt p)12)avg x ( ---------------- )12

Ps x MWs

532Vs = 8549 x 084 x 145039 x ( -------------------- )^12 = 820

2999 x 2857Where

Vs = Average gas stream velocity ftsec (lblb-mole)(in Hg)12

8549 = Pitot tube constant ftsec x ------------------------------------ (deg R)(in H2O)

Cp = Pitot tube coefficient dimensionlessTs = Absolute gas stream temperature deg R = Ts deg F + 460

P(static)Ps = Absolute gas stack pressure in Hg = Pb + --------------

136delt p = Velocity head of stack in H2O

8 Average gas stream volumetric flow rate at actual conditions wacfmin

Qs(act) = 60 x Vs x As

Qs(act) = 60 x 820 x 707 = 34799

Where

Qs(act) = Volumetric flow rate of wet stack gas at actualconditions wacfmin

As = Cross-sectional area of stack ft260 = Conversion factor from seconds to minutes

9 Average gas stream dry volumetric flow rate at standard conditions dscfmin

PsQs(std) = 1764 x Md x ----- x Qs(act)

Ts

2999Qs(std) = 1764 x 0976 x -------------------- x 34799

5316

Qs(std) = 33787

Where

Qs(std) = Volumetric flow rate of dry stack gas at standardconditions dscfmin

164

123120191101 AM 112219 Div Stack M0010

10 Isokinetic variation calculated from intermediate values percent

17327 x Ts x Vm(std)I = -----------------------------------

Vs x O x Ps x Md x (Dn)2

17327 x 532 x 64704I = -------------------------------------------------- = 1010

820 x 96 x 2999 x 0976 x (0160)^2Where

I = Percent of isokinetic samplingO = Total sampling time minutes

Dn = Diameter of nozzle inches17327 = Factor which includes standard temperature (528 deg R)

standard pressure (2992 in Hg) the formula forcalculating area of circle D24 conversion of squarefeet to square inches (144) conversion of secondsto minutes (60) and conversion to percent (100)(in Hg)(in2)(min) (deg R)(ft2)(sec)

165

1320201218 PM 112219 Div Stack M0010

SAMPLE CALCULATIONS FORHFPO DIMER ACID (METHOD 0010)

Client Chemours Plant Fayetteville NCTest Number Run 1 Test Date 112219Test Location Divison Stack Test Period 0826-1022

1 HFPO Dimer Acid concentration lbsdscf

W x 22046 x 10-9

Conc1 = ------------------------------ Vm(std)

223 x 22046 x 10-9Conc1 = ------------------------------

64704

Conc1 = 760E-10

Where

W = Weight of HFPO Dimer Acid collected in sample in ug

Conc1 = Division Stack HFPO Dimer Acid concentration lbsdscf

22046x10-9 = Conversion factor from ug to lbs

2 HFPO Dimer Acid concentration ugdscm

Conc2 = W ( Vm(std) x 002832)

Conc2 = 223 ( 64704 x 002832 )

Conc2 = 122E+01

Where

Conc2 = Division Stack HFPO Dimer Acid concentration ugdscm

002832 = Conversion factor from cubic feet to cubic meters

166

1320201218 PM 112219 Div Stack M0010

3 HFPO Dimer Acid mass emission rate lbshr

MR1(Outlet) = Conc1 x Qs(std) x 60 minhr

MR1(Outlet) = 760E-10 x 33787 x 60

MR1(Outlet) = 154E-03

Where

MR1(Outlet) = Division Stack HFPO Dimer Acid mass emission rate lbshr

4 HFPO Dimer Acid mass emission rate gsec

MR2(Outlet) = PMR1 x 45359 3600

MR2(Outlet) = 154E-03 x 45359 3600

MR2(Outlet) = 194E-04

Where

MR2(Outlet) = Division Stack HFPO Dimer Acid mass emission rate gsec

4536 = Conversion factor from pounds to grams

3600 = Conversion factor from hours to seconds

167

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

APPENDIX E EQUIPMENT CALIBRATION RECORDS

168

P-694 all in oneMOD

Pitot Tube Identification Number

Inspection Date 21919 Individual Conducting Inspection

Distance to A Plane (PA) - inches 046 PASSDistance to B Plane (PB) - inches 046 PASS

Pitot OD (Dt) - inches 0375105 Dt lt P lt 15 Dt PA must Equal PB

Q1 and Q2 must be lt 10o

B1 or B2 must be lt 5o

Z must be lt 0125 inches

W must be lt 003125 inches

X must be gt 075 inches

Thermocouple meets the Distance Criteria in the adjacent figure

Impact Pressure Opening Plane is above the Nozzle Entry Plane

NO

NA

NO

NA

PASS

PASS

PASS

Distance between Sample Nozzle and Pitot (X) - inches

Thermocouple meets the Distance Criteria in the adjacent figure

YES

YES

PASS

NO YES

NA

0

0

Angle of B1 from vertical A Tube- degrees (absolute) 0

0

08

Horizontal offset between A and B Tubes (Z) - inches

Vertical offset between A and B Tubes (W) - inches

0004

0015

PASSFAIL

Angle of B1 from vertical B Tube- degrees (absolute)

PASS

PASS

PASS

P-694

ks

Angle of Q1 from vertical A Tube- degrees (absolute)

Angle of Q2 from vertical B Tube- degrees (absolute)

Type S Pitot Tube Inspection Data Form

Are Open Faces Aligned Perpendicular to the Tube Axis

YES NOPASS

If all Criteria PASS Cp is equal to 084

Sample Probe

Type S Pitot Tube

Temperature Sensor

Dt

2 inch

Sample Probe

Temperature Sensor

DtType S Pitot Tube

3 inch

34 inch

A B

Face Opening Planes

AB

AB

Q1 Q1 Q2

B B

B

A A

A

FlowFlow

B1(+)B1(-)

B2(+ or -)

B1(+ or -)

B-Side Plane

AB

PA

PB

A-Side PlaneDt

X

Sampling D

Impact Pressure Opening Plane

Nozzle Entry Plane

W

B

A

B

A

Z

169

Long Cal Box_30 2-21-19

Calibrator MDW Meter Box Number 30 Ambient Temp 72

Date 21-Feb-19 Wet Test Meter Number P-2952 Temp Reference Source

Dry Gas Meter Number 17485131

Setting

in H20

(∆H) ft3

(Vw)ft3

(Vd)

oF (Tw)

Outlet oF (Tdo)

Inlet oF (Tdi)

Average oF (Td)

Time min (O)

Y ∆H

905750 7000 7000910724 7000 7000

4974 7000 7000911701 7100 7100916685 7100 7100

4984 7100 7100917680 7200 7200927695 7400 740010015 7300 7300

928690 7400 7400938780 7500 750010090 7450 7450

939800 7600 7600949930 7700 770010130 7650 7650

Average 09972 18715

Vw - Gas Volume passing through the wet test meter 0 - Time of calibration runVd - Gas Volume passing through the dry gas meter Pb - Barometric PressureTw - Temp of gas in the wet test meterTdi - Temp of the inlet gas of the dry gas meterTdo - Temp of the outlet gas of the dry gas meterTd - Average temp of the gas in the dry gas meter

1 2 3 4 5 632 32 32 32 32 320 00

212 213 213 212 212 2124 -01932 933 933 932 932 9324 00

1832 1832 1832 1832 1832 18320 001 - Channel Temps must agree with +- 5oF or 3oC

2 - Acceptable Temperature Difference less than 15

20 100

18501128 10002

Dry Gas Meter

700

05 700

10

Long Cal and Temperature Cal Datasheet for Standard Dry Gas Meter Console

Orifice Manometer

Wet Test Meter

Dry gas Meter

Gas Volume

1822450 700 700 90

Y - Ratio of accuracy of wet test meter to dry gas meter

∆H - Pressure differential across orifice

30 100 700

TemperaturesWet Test

Meter

680

15 100

10007

50

700

107 09910

725

745

18894

18851130 09946

150 09995

9321832

Reference Temperature

Select Temperature

oC oF

21232

Average Temperature

Reading

Thermocouple Simulator

(Accuracy +- 1oF)

Temp

Difference 2

()

Temperature Reading from Individual Thermocouple Input 1

Channel Number

19103

Calibration Results

Baro Press in Hg ( Pb)

2987

760

( ) ( )

( )( ) 2

Vw

O460tw

460tdPb

H03170H

460tw613

HPbVd

)460td(PbVwY

lowast+

lowast

+lowast

∆lowast=∆

+lowast

+lowast

+lowastlowast=

( )( ) ( )( )( )

+

+minus+=

460FTempferenceRe

460FTempTest460FTempferenceReDiffTemp

o

oo

170

Y Factor Calibration Check CalculationMODIFIED METHOD 0010 TEST TRAIN

DIVISION STACKMETER BOX NO 30

11222019Run 1 Run 2

MWd = Dry molecular weight source gas lblb-mole032 = Molecular weight of oxygen divided by 100044 = Molecular weight of carbon dioxide divided by 100028 = Molecular weight of nitrogen or carbon monoxide divided by 100

CO2 = Percent carbon dioxide by volume dry basis 00 00 O2 = Percent oxygen by volume dry basis 209 209

MWd = ( 032 O2 ) + ( 044 CO2 ) + ( 028 ( 100 - ( CO2 + O2 )))

MWd = ( 032 209 ) + ( 044 0 ) + ( 028 ( 100 - ( 0 + 209 )))

MWd = ( 669 ) + ( 000 ) + ( 2215 )

MWd = 2884 2884

Tma = Source Temperature absolute(oR)Tm = Average dry gas meter temperature deg F 570 652

Tma = Ts + 460

Tma = 5704 + 460

Tma = 51704 52519

Ps = Absolute meter pressure inches Hg1360 = Specific gravity of mercury

delta H = Avg pressure drop across the orifice meter during sampling in H2O 140 100Pb = Barometric Pressure in Hg 3002 3002

Pm = Pb + (delta H 136)

Pm = 3002 + ( 14025 136)

Pm = 3012 3009

Yqa = dry gas meter calibration check value dimensionless003 = (2992528)(075)2 (in HgdegR) cfm2

2900 = dry molecular weight of air lblb-moleVm = Volume of gas sample measured by the dry gas meter at meter conditions dcf 63136 47088

Y = Dry gas meter calibration factor (based on full calibration) 09972 09972Delta H = Dry Gas meter orifice calibration coefficient in H2O 18715 18715

avg SQRT Delta H = Avg SQRT press drop across the orifice meter during sampling in H2O 11783 09984O = Total sampling time minutes 96 84

Yqa = (O Vm ) SQRT ( 00319 Tma 29 ) ( Delta H Pm MWd ) avg SQRT Delta H

Yqa = ( 9600 6314 ) SQRT ( 00319 51704 29 ) ( 187 3012 2884 ) 118

Yqa = 1521 SQRT 478315 1625473 118

Yqa = 09719 09742

Diff = Absolute difference between Yqa and Y 254 231

Diff = (( Y - Yqa ) Y ) 100

Diff = (( 09972 - 0972 ) 09972 ) 100

Average Diff = 243

Allowable = 50

1220201119 AM 112219 Div Stack M0010171

Long Cal Vost Box 5 11-29-18

Calibrator PM VOST Box Number VOST 5 Ambient Temp 72

Date 29-Nov-18 Wet Test Meter Number 10BB-1 Temp Reference Source

Dry Gas Meter Number 3605443

Resultsin H20

(∆H)liters (Vw)

liters (Vd)

oF (Tw)

Outlet oC (Tdo)

Inlet oC (Tdi)

Average oF (Td)

Time min (O)

Y

0000 2000 20004890 2050 20504890 2025 21600000 2050 20509772 2100 21009772 2075 22800000 2220 222014768 2220 222014768 2220 22200000 2280 228020034 2280 228020034 2280 2280

Average 10088

Vw - Gas Volume passing through the wet test meter 0 - Time of calibration runVd - Gas Volume passing through the dry gas meter Pb - Barometric PressureTw - Temp of gas in the wet test meterTdi - Temp of the inlet gas of the dry gas meter

Tdo - Temp of the outlet gas of the dry gas meterTd - Average temp of the gas in the dry gas meter

oC oF1 2 3 4 5 60 0 0 0 00 00

100 100 100 100 1000 00500 500 500 500 5000 001000 1000 1000 1000 10000 00

1 - Channel Temps must agree with +- 5oF or 3oC

2 - Acceptable Temperature Difference less than 15

Wet Test Meter

Dry gas MeterWet Test

Meter

Gas Volume

50045 725

10154

685 102 10137

695085 100

2975

730 200 09943

110 10118

100

720

Dry Gas Meter

Temperatures

20 200

725

725

150 72515 17

Setting

Roto-meter

Liters per minute

12

Orifice Manometer

120

Long Cal and Temperature Cal Datasheet for VOST Dry Gas Meter Console

∆H - Pressure differential across orifice

Y - Ratio of accuracy of wet test meter to dry gas meter

Thermocouple Simulator

(Accuracy +- 1oF)

Baro Press in Hg ( Pb)

20 23

050 070

100

Temp

Difference 2 ()

Average Temperature

Reading

0

500100

1000

Channel Number

Temperature Reading from Individual Thermocouple Input 1

Select Temperature

Reference Temperature

( ) ( )

( )( ) 2

Vw

O460tw

460tdPb

H03170H

460tw613

HPbVd

)460td(PbVwY

lowast+

lowast

+lowast∆lowast

=∆

+lowast

+lowast

+lowastlowast=

( )( ) ( )( )( )

+

+minus+=

460FTempferenceRe

460FTempTest460FTempferenceReDiffTemp

o

oo

172

Long Cal Vost Box 8 9_21_2019

Calibrator MDW VOST Box Number VOST 8 Ambient Temp 73

Date 21-Sep-19 Wet Test Meter Number 10BB-1 Temp Reference Source

Dry Gas Meter Number 3602380

Resultsin H20

(∆H)liters (Vw)

liters (Vd)

oF (Tw)

Outlet oC (Tdo)

Inlet oC (Tdi)

Average oF (Td)

Time min (O)

Y

0000 2400 24002999 2400 24002999 2400 24000000 2400 24008960 2400 24008960 2400 24000000 2400 24009934 2400 24009934 2400 24000000 2400 240018700 2400 240018700 2400 2400

Average 10088

Vw - Gas Volume passing through the wet test meter 0 - Time of calibration runVd - Gas Volume passing through the dry gas meter Pb - Barometric PressureTw - Temp of gas in the wet test meterTdi - Temp of the inlet gas of the dry gas meter

Tdo - Temp of the outlet gas of the dry gas meterTd - Average temp of the gas in the dry gas meter

oC oF1 2 3 4 5 632 32 32 32 320 00212 212 212 212 2120 00932 932 932 932 9320 001829 1829 1829 1829 18290 01

1 - Channel Temps must agree with +- 5oF or 3oC

2 - Acceptable Temperature Difference less than 15

Wet Test Meter

Dry gas MeterWet Test

Meter

Gas Volume

30000 720

10093

750 118 10060

750035 90

3008

710 99 10099

100 10099

178

750

Dry Gas Meter

Temperatures

170 190

720

720

100 720

050

10 10

Setting

Roto-meter

Liters per minute

100

Orifice Manometer

050

1832

Long Cal and Temperature Cal Datasheet for VOST Dry Gas Meter Console

∆H - Pressure differential across orifice

Y - Ratio of accuracy of wet test meter to dry gas meter

Thermocouple Simulator

(Accuracy +- 1oF)

Baro Press in Hg ( Pb)

20 20

025 025

Channel Number

Temperature Reading from Individual Thermocouple Input 1 Temp

Difference 2 ()

Average Temperature

Reading

32

932212

Select Temperature

Reference Temperature

( ) ( )

( )( ) 2

Vw

O460tw

460tdPb

H03170H

460tw613

HPbVd

)460td(PbVwY

lowast+

lowast

+lowast∆lowast

=∆

+lowast

+lowast

+lowastlowast=

( )( ) ( )( )( )

+

+minus+=

460FTempferenceRe

460FTempTest460FTempferenceReDiffTemp

o

oo

173

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

APPENDIX F LIST OF PROJECT PARTICIPANTS

174

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

The following WESTON employees participated in this project

Paul Meeter Senior Project Manager

Jeff OrsquoNeill Senior Project Manager

Wes Fritz Senior Project Manager

Matt Winkeler Team Member

Kyle Schweitzer Team Member

Brandon Berger Team Member

175

  • ADPB5DBtmp
    • FIELD DATA CALCS
    • SemiVol Results
      • ADPD0DEtmp
        • Data input
        • results
          • ADP152tmp
            • SEMIVOLCALC
              • ADPD8Ftmp
                • Data input
                • results
                  • ADP2D63tmp
                    • results
                      • ADP5868tmp
                        • Data input
                          • ADPE9F3tmp
                            • results
                              • ADP2499tmp
                                • Data input
                                • results
                                  • ADP6F7Etmp
                                    • Data input
                                    • results

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 1

1 INTRODUCTION

11 FACILITY AND BACKGROUND INFORMATION

The Chemours Fayetteville Works (Chemours) is located in Bladen County North Carolina

approximately 10 miles south of the city of Fayetteville Chemours operating areas on the site

include the Fluoromonomers IXM and Polymers Processing Aid (PPA) manufacturing areas

Wastewater Treatment and Powerhouse

Chemours contracted Weston Solutions Inc (Weston) to perform HFPO Dimer Acid Fluoride

captured as HFPO Dimer Acid and other target compound emission testing on the Division

stack at the facility Testing was performed on 22 November and 4 December 2019 and generally

followed the ldquoEmission Test Protocolrdquo reviewed and approved by the North Carolina

Department of Environmental Quality (NCDEQ) This report provides the results from the

emission test program

12 TEST OBJECTIVES

The specific objectives for this test program were as follows

Measure the emissions concentrations and mass emissions rates of HFPO Dimer Acid Fluoride and other target compounds from the Division stack which is located in the Fluoromonomers process area

Monitor and record process and emissions control data in conjunction with the test program

Provide representative emissions data

13 TEST PROGRAM OVERVIEW

During the emissions test program the concentrations and mass emissions rates of HFPO Dimer

Acid and other target compounds were measured at the Division stack

Table 1-1 provides a summary of the test location and the parameters that were measured along

with the samplinganalytical procedures that were followed

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 2

Section 2 provides a summary of test results A description of the processes is provided in

Section 3 Section 4 provides a description of the test locations The sampling and analytical

procedures are provided in Section 5 Detailed test results and discussion are provided in

Section 6

Appendix C includes the summary reports for the laboratory analytical results The full

laboratory data packages are provided in electronic format

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 4

2 SUMMARY OF TEST RESULTS

A total of three MM18 and two M0010 test runs were performed on the Division stack Table 2-1

provides a summary of the HFPO Dimer Acid emissions test results associated with M0010

Table 2-2 provides a summary of the target compound emissions test results associated with

MM18 Detailed test results summaries are provided in Section 6

It is important to note that emphasis is being placed on the characterization of the emissions

based on the M0010 stack test results Research conducted in developing the protocol for stack

testing HFPO Dimer Acid Fluoride HFPO Dimer Acid Ammonium Salt and HFPO Dimer Acid

realized that the resulting testing including collection of the air samples and extraction of the

various fraction of the sampling train would result in all three compounds being expressed as

simply the HFPO Dimer Acid However it should be understood that the total M0010 HFPO

Dimer Acid results provided in Table 2-1 and in this report include a percentage of each of the

three compounds

Table 2-1 Summary of M0010 HFPO Dimer Acid Division Stack Test Results

Division Stack ndash M0010 gsec lbhr

R1 194E-04 154E-03 R2 339E-04 269E-03 Average 266E-04 212E-03

Samples taken using MM18 were analyzed for the following volatile organic compounds (ldquotarget

compoundsrdquo) HFPO Dimer Methyl Ester as HFPO (HFPO Dimer Methyl Ester) 2-MTP as

HFPO (HFPO Monomer) Heptafluoropropyl 1222-tetrafluoroethyl ether (Fluoroether E-1)

Carbonyl Difluoride Total Fluorine and Hydrogen Fluoride Results of MM18 target compound

analysis are provided in Table 2-2

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 5

Table 2-2 Summary of MM18 Target Compound Division Stack Test Results

Target Compound

Division Stack MM18 Run 1

Division Stack MM18 Run 2

Division Stack MM18 Run 3

gsec lbhr gsec lbhr gsec lbhr HFPO Dimer Methyl Ester

lt438E-03 lt348E-02 lt260E-03 lt207E-02 lt263E-03 lt209E-02

HFPO Monomer

374E-01 297E+00 315E-01 250E+00 192E+00 153E+01

Fluoroether E-1

291E-02 231E-01 667E-02 530E-01 241E-02 192E-01

Carbonyl Difluoride

lt134E-02 lt106E-01 lt796E-03 lt633E-02 lt803E-03 lt638E-02

Total Fluorine

727E+00 578E+01 594E+00 472E+01 140E+01 111E+02

Hydrogen Fluoride

lt182E-01 lt145E+00 lt109-01 lt863E-01 lt110E-01 lt870E-01

Note All lt values were below the laboratory analysis detection limits Emission rates were calculated using the method detection limit (MDL) for the first analytical fraction of the target compound

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 6

3 PROCESS DESCRIPTIONS

The Fluoromonomers area is included in the scope of this test program

31 FLUOROMONOMERS

These facilities produce a family of fluorocarbon compounds used to produce Chemours

products such as Nafionreg Krytoxreg and Vitonreg as well as sales to outside customers

At the time of testing process emissions were vented to the Division waste gas scrubber system

(which included the secondary scrubber) and vented to the Carbon Bed and then into the

Division stack The VE North building air systems were vented to the Carbon Bed and then into

the Division stack

32 PROCESS OPERATIONS AND PARAMETERS

The following table is a summary of the operation and products from the specific areas tested

Source OperationProduct Batch or Continuous VE North

PPVE Condensation is continuous Agitated Bed Reactor and Refining are batch

During the test program the following parameters were monitored by Chemours and are

included in Appendix A

Fluoromonomers Process o VEN Precurser Rate o VEN Condensation Rate o VEN ABR Rate

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 7

4 DESCRIPTION OF TEST LOCATIONS

41 DIVISION STACK

Two 6-inch ID test ports were installed on the 36-inch ID fiberglass stack as shown below The

four vents that enter the top of the stack and the one vent ~11 feet below are catch pots which

under normal process operations do not discharge to the stack They are used to vent process gas

to the stack in the event of a process upset and are not considered a flow contributor or a

disturbance

Per EPA Method 1 a total of 12 traverse points (six per axis) were used for M-0010 isokinetic

sampling Figure 4-1 provides a schematic of the test ports and traverse point locations

Location Distance from Flow Disturbance Downstream (B) Upstream (A)

Division Stack 30 feet gt 10 duct diameters

9 feet gt 3 diameters

The EPA Method 18 sample was collected at a constant rate at a single point at the approximate

center of the stack

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 9

5 SAMPLING AND ANALYTICAL METHODS

51 STACK GAS SAMPLING PROCEDURES

The purpose of this section is to describe the stack gas emissions sampling trains and to provide

details of the stack sampling and analytical procedures utilized during the emissions test

program

511 Pre-Test Determinations

Preliminary test data were obtained at the test location Stack geometry measurements were

measured and recorded and traverse point distances verified A preliminary velocity traverse

was performed utilizing a calibrated S-type pitot tube and an inclined manometer to determine

velocity profiles Flue gas temperatures were observed with a calibrated direct readout panel

meter equipped with a chromel-alumel thermocouple Preliminary water vapor content was

estimated by wet bulbdry bulb temperature measurements

A check for the presence or absence of cyclonic flow was previously conducted at the test

location The cyclonic flow check was negative (lt 20deg) verifying that the test location was

acceptable for testing

Preliminary test data was used for nozzle sizing and sampling rate determinations for isokinetic

sampling procedures

Calibration of probe nozzles pitot tubes metering systems and temperature measurement

devices was performed as specified in Section 5 of EPA Method 5 test procedures

52 STACK PARAMETERS

521 EPA Method 0010

The sampling train utilized to perform the HFPO Dimer Acid sampling at the location was an

EPA Method 0010 train (see Figure 5-1) The Method 0010 consisted of a borosilicate nozzle

that attached directly to a heated borosilicate probe In order to minimize possible thermal

degradation of the HFPO Dimer Acid the probe and particulate filter were heated above stack

temperature to minimize water vapor condensation before the filter The probe was connected

directly to a heated borosilicate filter holder containing a solvent extracted glass fiber filter

18

10

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 11

A section of borosilicate glass or flexible polyethylene tubing connected the filter holder exit to a

Grahm (spiral) type ice water-cooled condenser an ice water-jacketed sorbent module containing

approximately 40 grams of XAD-2 resin The XAD-2 resin tube was equipped with an inlet

temperature sensor The XAD-2 resin trap was followed by a condensate knockout impinger and

a series of two impingers that contained 100 mL of high-purity distilled water The train also

included a second XAD-2 resin trap behind the impinger section to evaluate possible sampling

train breakthrough Each XAD-2 resin trap was connected to a 1-liter condensate knockout trap

The final impinger contained 300 grams of dry pre-weighed silica gel All impingers and the

condensate traps were maintained in an ice bath Ice water was continuously circulated in the

condenser and the XAD-2 module to maintain method-required temperature A control console

with a leakless vacuum pump a calibrated orifice and dual inclined manometers was connected

to the final impinger via an umbilical cord to complete the sample train

HFPO Dimer Acid Fluoride (CAS No 2062-98-8) that is present in the stack gas is expected to

be captured in the sampling train along with HFPO Dimer Acid (CAS No 13252-13-6) HFPO

Dimer Acid Fluoride underwent hydrolysis instantaneously in water in the sampling train and

during the sample recovery step and was converted to HFPO Dimer Acid such that the amount

of HFPO Dimer Acid emissions represented a combination of both HFPO Dimer Acid Fluoride

and HFPO Dimer Acid

During sampling gas stream velocities were measured by attaching a calibrated S-type pitot tube

into the gas stream adjacent to the sampling nozzle The velocity pressure differential was

observed immediately after positioning the nozzle at each traverse point and the sampling rate

adjusted to maintain isokineticity at 100 plusmn 10 Flue gas temperature was monitored at each

point with a calibrated panel meter and thermocouple Isokinetic test data was recorded at each

traverse point during all test periods as appropriate Leak checks were performed on the

sampling apparatus according to reference method instructions prior to and following each run

component change (if required) or during midpoint port changes

522 EPA Method 0010 Sample Recovery

At the conclusion of each test the sampling train was dismantled the openings sealed and the

components transported to the field laboratory trailer for recovery

A consistent procedure was employed for sample recovery

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 12

1 The two XAD-2 covered (to minimize light degradation) sorbent modules (1 and 2) weresealed and labeled

2 The glass fiber filter(s) were removed from the holder with tweezers and placed in apolyethylene container along with any loose particulate and filter fragments

3 The particulate adhering to the internal surfaces of the nozzle probe and front half of thefilter holder were rinsed with a solution of methanol and ammonium hydroxide into apolyethylene container while brushing a minimum of three times until no visibleparticulate remained Particulate adhering to the brush was rinsed with methanolammonium hydroxide into the same container The container was sealed

4 The volume of liquid collected in the first condensate trap was measured the valuerecorded and the contents poured into a polyethylene container

5 All train components between the filter exit and the first condensate trap were rinsed withmethanolammonium hydroxide The solvent rinse was placed in a separate polyethylenecontainer and sealed

6 The volume of liquid in impingers one and two and the second condensate trap weremeasured the values recorded and the sample was placed in the same container as Step 4above then sealed

7 The two impingers condensate trap and connectors were rinsed with methanolammonium hydroxide The solvent sample was placed in a separate polyethylenecontainer and sealed

8 The silica gel in the final impinger was weighed and the weight gain value recorded

9 Site (reagent) blank samples of the methanolammonium hydroxide XAD resin filterand distilled water were retained for analysis

Each container was labeled to clearly identify its contents All samples were maintained cool

Following sample recovery all samples were transported to Eurofins TestAmerica

(TestAmerica) for sample extraction and analysis

See Figure 5-2 for a schematic of the Method 0010 sample recovery process

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 13

523 EPA Method 0010 Sample Analysis

Method 0010 sampling trains resulted in four separate analytical fractions for HFPO Dimer Acid

analysis according to SW-846 Method 3542

Front-half Compositemdashcomprised of the particulate filter and the probe nozzle and

front-half of the filter holder solvent rinses

Back-half Compositemdashcomprised of the first XAD-2 resin material and the back-half of

the filter holder with connecting glassware solvent rinses

Condensate Compositemdashcomprised of the aqueous condensates and the contents of

impingers one and two with solvent rinses

Breakthrough XAD-2 Resin Tubemdashcomprised of the resin tube behind the series of

impingers

The second XAD-2 resin material was analyzed separately to evaluate any possible sampling

train HFPO-DA breakthrough

The front-half and back-half composites and the second XAD-2 resin material were placed in

polypropylene wide-mouth bottles and tumbled with methanol containing 5 NH4OH for 18

hours Portions of the extracts were processed analytically for the HFPO dimer acid by liquid

chromatography and duel mass spectroscopy (HPLCMSMS) The condensate composite was

concentrated onto a solid phase extraction (SPE) cartridge followed by desorption from the

cartridge using methanol Portions of those extracts were also processed analytically by

HPLCMSMS

18

3

14

VACUUM LINEMAINVALVE

TEMPERATURESENSORS

BY-PASS VALVE

DRY GASMETER

CUBIC LITERS

ORIFICE

VACUUMGAUGE

AIR-TIGHT

PUMP

DRY ICE AND METHANOL

BATH

METHANOL IN EACH IMPINGER

FIGURE 5-3MODIFIED EPA METHOD 18 SAMPLING TRAIN FOR PFAS COMPOUNDS

GLASS IMPINGERS

STACK WALL

PLASTIC OR GLASS PROBE

PRESSUREDIFFERENTIAL

GAUGE

8 3 18

16

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 17

54 GAS COMPOSITION

The Weston mobile laboratory equipped with instrumental analyzers was used to measure carbon

dioxide (CO2) and oxygen (O2) concentrations A diagram of the Weston sampling system is

presented in Figure 5-4

For the Division stack test campaign the sample was collected at the exhaust of the Method

0010 sampling system At the end of the line a tee permitted the introduction of calibration gas

The sample was drawn through a heated Teflonreg sample line to the sample conditioner The

output from the sampling system was recorded electronically and one minute averages were

recorded and displayed on a data logger

Each analyzer was set up and calibrated internally by introduction of calibration gas standards

directly to the analyzer from a calibration manifold The calibration manifold is designed with an

atmospheric vent to release excess calibration gas and maintained the calibration at ambient

pressure The direct calibration sequence consisted of alternate injections of zero and mid-range

gases with appropriate adjustments until the desired responses were obtained The high-range

standards were then introduced in sequence without further adjustment

The sample line integrity was verified by performing a bias test before and after each test period

The sampling system bias test consisted of introducing the zero gas and one up-range calibration

standard in excess to the valve at the probe end when the system was sampling normally The

excess calibration gas flowed out through the probe to maintain ambient sampling system

pressure Calibration gas supply was regulated to maintain constant sampling rate and pressure

Instrument bias check response was compared to internal calibration responses to insure sample

line integrity and to calculate a bias correction factor after each run using the ratio of the

measured concentration of the bias gas certified by the calibration gas supplier

The oxygen and carbon dioxide content of each stack gas was measured according to EPA

Method 3A procedures which incorporate the latest updates of EPA Method 7E A Servomex

Model 4900 analyzer (or equivalent) was used to measure oxygen content A Servomex Model

4900 analyzer (or equivalent) was used to measure carbon dioxide content of the stack gas Both

analyzers were calibrated with EPA Protocol gases prior to the start of the test program and

performance was verified by sample bias checks before and after each test run

I

4

184

18

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020 19

6 DETAILED TEST RESULTS AND DISCUSSION

M0010 test run number two was stopped prior to the full run time due to a process upset in the

area The run was considered complete and the sample was recovered and submitted for analysis

A total of two M0010 test runs were performed at the location A total of three MM18 test runs

were performed at the location

Table 6-1 provides detailed M0010 test data and test results for Division stack Table 6-2

provides detailed MM18 test data and test results for the Division stack

The Method 3A sampling indicated that the O2 and CO2 concentrations were at ambient air

levels (209 O2 0 CO2) therefore 209 O2 and 0 CO2 values were used in all

calculations

It should be noted that methylene chloride was identified in the MM18 analytical results This

detection was due to a special procedure done in the process area in which methylene chloride

was used to unplug equipment that experienced plugging during testing Methylene chloride

would not typically be detected in this process area

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

APPENDIX A PROCESS OPERATIONS DATA

24

Division

Date 11222019TimeStack TestingHFPOVEN ProductVEN PrecursorVEN Condensation (HFPO)VEN ABRVEN RefiningStripper Column VentDivision WGS Recirculation FlowDivision WGS Inlet Flow

Date 1242019TimeStack TestingHFPOVEN ProductVEN PrecursorVEN Condensation (HFPO)VEN ABRVEN RefiningStripper Column VentDivision WGS Recirculation FlowDivision WGS Inlet Flow

800 900 1000 1100 1300 1400 1500 1600RUN 1 0826-1022 RUN 2 - 1139-1320

1200

PPVE

Burnout

15000 kgh142 kgh 145 kgh 148 kgh 150 kgh 135 kgh 128 kgh 74 kgh103 kgh

RUN 3 0955-1125

PPVE

800 900 1000 1100

15000 kgh65 kgh 73 kgh 110 kgh

25

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

APPENDIX B RAW AND REDUCED TEST DATA

26

Sample and Velocity Traverse Point Data Sheet - Method 1

Client CJtl 11 eAAI Operator Loact1onPlant Vltf t fcu I le v Date 2J- l

Source ( v ) _5 -rj(L W O Number JT(t O

Duct Type Circular D Rectangular Duct Indicate eppropMate type

Traverse Type II( Particulate Traverse D Velocity Traverse D CEM Traverse

Distance from far wall to outside of oort lln l = C ltdeglt ) Flow Disturbances -

Port Deoth (in) = D 121 ur Upstream - A (ft) (1 (t I

Deoth or Duct diameter (inI= C-D I (I Area of Duct (ff) -11 7 01 - - --

Total Traverse Points 1 I tJ fa

Total Traverse Points oer Port

Port Diameter flnl-Flanae-Threaded-Holel l I

Monorail Lenoth t) Rectangular Ducts Onty

Width of Duct rectanaular duct only (In I Total Ports (rectanoular duct only) Eauivalent Diameter= 12middotL Wl(L+W)

Traverse Point Locations

Distance from Traverse Inside Duct Distance1from Outside of

Point of Duct Wallinl Portin)

1 1 i I 1- I b2 jtmicro 1poundgt

2 ( gt-0 h A il1

l y gtf-uir 7 vr

3 21 I09S- timiddot 1T 1e 1 tJ lDI 1

Igt 4 7 V

5

6

7

8

10

11

12

1

2

3

9S i 31 9 l- t

Cf5lv 35)7 $ f

- L

4Mre (

CEM 3 Polnl(Long Measurmbullnt Unbull) StraUflcaton POnt Locations

0167

050

0833 Note If stack dla lt 12 inch use EPA Method 1A

(Sample port upstream of pilot port) Note stack dia gt24 then adjust traverse point to 1 inch from wall

If stack dia lt24 then adjust traverse point to 05 inch from wall

l 2 T I 146

r 2 854 ) L

4 bull 0

r C 5 bull a 6 o I 7

8 p 0 o n 9

I 10

n II 12

Traverso Point Location Ptrcant of Stack Circular

J 4

67

25

75

i

NwnberofT IPoints 5 6 8

44 32

146 tQ5

296 194

704 123

854 677

956 8D6

895

96B

9 10

26

82 146

226

)42

658

774

1154 918

974

ll

tfltr

middotltt

12

21

67 118 111

25

l56

644

15

823

w 9)3

979

Downstream - B (ft) -

91 Qt

Upstream - A (duct diameters t

Downstream - B duct diameters) 61Diagram of Stack

11 _ ---

ltl Igt-

ry middoti 5D -

j

--

Duct 0middot1ameters Upstream from Flow Disturbance (Distance A

05 1 0 1 5 20 25 50

I I I I I I I

Stack Diametergt 24 Inches deg t

40 - A

plusmn --- -middot

Minimum Number cf bull

l

JO -Particulate Traverse Points

l _

24 (chular) 25 (mctangulw dlJdltl)

20 -

Traverse Polllls for Velocity 16

12

I 10 _ Disturbance =Band Expansion Contraction etc

B(tmJiir)lilj

S1adDlaarDti1224Rnefl

4

Duct Dlemehn Downstraam from Acv Dl1furbance (Olslenca B)

Travers Point Location Panent of Stack ootanaular

NIJlber ofTnrne Polnls I 2 l 4 5 6 7 8 9 10 II ll

T I 250 167 125 100 8J 71 6J 56 50 45 41

2 7SO 51l0 31J 300 25J ZIA 18J 167 ISII llli 11l J 8) 3 625 500 417 )57 JU 278 250 227 208 l

4 75 70I ID 5110 431 IU 310 318 29Z o 5 900 750 60 563 500 4SO 409 Jll a 6 911 JU 611 U ru tea 458 I 7 C29 813 722 650 91 l4l

i tu w 750 42 ill p 0

o n i 944 850 m 708 I 10 i5JI 1164 191

II 955 875 12 JJI

27

CHEMOURS - FAYETTEVILLE NCINPUTS FOR HFPO DIMER ACID CALCULATIONS

DIVISION STACK

Test DataRun number 1 2Location Divison Stack Divison StackDate 112219 112219Time period 0826-1022 1139-1324Operator BB BB

Inputs For CalcsSq rt delta P 145039 122804Delta H 14025 10010Stack temp (degF) 716 794Meter temp (degF) 570 652Sample volume (act) 63136 47088Barometric press (inHg) 3002 3002Volume H2O imp (ml) 100 70Weight change sil gel (g) 244 145 CO2 00 00 O2 209 209 N2 791 791Area of stack (sqft) 7070 7070Sample time (min) 960 840Static pressure (inH2O) -035 -035Nozzle dia (in) 0160 0160Meter box cal 09972 09972Cp of pitot tube 084 084Traverse points 12 12

122020 1102 AM 112219 Div Stack M001028

ISOKINETIC FIELD DATA SHEET EPA Method 0010 - HFPO Dimer Acid Page J~ orb client chemours Stack Conditions Meter Box ID K Factor Q wo 15418002018 Assumed Actual MeterBox Y rjq7 a Project ID Chemours Moisture ^~ 3 Meter Box Del H ~ $j ~~ Illltlal Mid-Point Final ModeSource ID Division Impinger Vol (ml) Probe ID Length L~~ ~ Sample Train (ft3) o o D 5 GAO U (~(~ Samp Loc ID STK Silica gel (g) Probe Material ~Boro Leak Check (in Hg) `~ ~ S ~~ ~

Run NoID 1 CO2 deg by Vol Q Pitot Thermocouple ID Pitot leak check good yes no no no Test Method ID M0010 02 by Vol ~ ~ Pitot Coe~cient 84~r Pitot Inspection good no ye no no Date ID NOV2019 Temperature (degF) ~ Noale ID ~~ Method 3 System good yes no yes no yes no SourceLocation Div(sion Stack Meter Temp (F) l~ Noale Measurements ~ 6 p ~ LO Temp Check re-Test Set POSt-Test Set Sample Date ~ Static Press (in H2O) mdash ~ 3 ~j ~J Avg Noale Dia (in) ~ ~ 6 bull ~ Meter Box Temp

Baro Press (in Hg) Area of Stack (ftz) Q~ Reference Temp Operator Ambient Temp (degF) ~ ~ Sample Time `~ (~ PasslFail (+- 2deg~ Pass Fail Pass Fail

Total Traverse Pts ~ a Temp Change Response ~ yes no yes no

~~r~~~-

~~mdash~~ ~ ~ ~ ~ ~ i ~~~~mdash

~~-~~~Itibull1~~~ bull ~~~~~~~_~~

~~-~ I ~~~~~~~~~- ~~~

avg uena r ( vvg uerca ry

a ~ ~Ib J Ava Sart Delta P Avo Sart Dei t

i oral vowme~ ( b vvg i s

~~~ nments

J ~lr ~ ~~~~13~

J

vvg i m J rvun~nnax rvunlnnax nnax rwax vac nnin~rv~ax

~~ d ltltu~~~~ te6~~~~( sq g H~ly~ EPA Method 0010 from EPA SW- 46

(~ Q~ ~~~ 29

ISOHINETIC FIELD DATA SHEET EPA Method 0010 - HFPO Dimer Acid Page ~ or 1 Client Chemours Stack Conditions Meter Box ID qq~ ~ K Factor ~ 6 WO 15418002018 Assumed Actual Meter Box Y Project ID Chemours Moisture ~ Meter Box Del H ( gj ~ Init181 Mid-Point FIn81 ModeSource ID Division Impinger Vol (ml) Probe ID Length H q 4 ~ 6~ Sample Train (ft3) ~ Oo ~ jj ~ Samp Loc ID STK Silica gel (g)

mdash~ Probe Material Boro Leak Check (in Hg) ~

Run NoID 2 CO2 by Vol Pitot Thermocouple ID Pitot leak check good ~ no e no yes np Test Method ID M0010 02 deg by Vol ~ q Pitot Coefficient 084 Pitot Inspection good no e no yes no Date ID S L

NOV2019 Temperature (degF) MeterT m F

~~ Noale ID Method 3 S stem ood Y 9 Yes no yes no yes no ource ovation Diviswn Stack e P ( ) Noale Measurements I b~ ~ 60 ~ (~ Temp Check Pre-Test et Post-Test Set

Sample Date ~ ~ a mdash ( Static Press (in Hz0) mdash~ 3 Avg Noale Dia (in) ( ~ Meter Box Temp Baro Press (in Hg) Q Area of Stack (ft2) Reference Temp Operator Ambient Temp (degF) SQ Sample Time _q~-- `~j PassFail (+- 2deg) Pass Fail Pass Fail

Total Traverse Pts ~ ~ Temp Change Response yes no ves no

bull

mdash~~~~ ~ bull

~~~~--- ~~~

~~mdash~~ ~ r ~ ~~~~~-

1~__2~ 000~5~

Avg Sgrt Delta P Avg Sgrt Del

t-~`~~5 ~~~~~~~

bully bull~ r ~~~~~~~~a~ miuimnn man max vac mnuPnax

~~ flg~ ~1q~1 lo ~-- QOIl2(o g3(tl5 (a~ (v ~I`b~(o0 Comments EPA Method 0010 from EPA SW-846

_ t~~ ~~_~- 30

12120201028 AM 112219 Div Stack MM18

TEST DATA Test run number 1 2 3 Location Division Stack Division Stack Division Stack Test date 112219 112219 12419 Test time period 0826-1022 1139-1318 0955-1125Operator WF WF KS

SAMPLING DATA Duration minutes 84 78 90 Average dry gas meter press in H2O 341 356 500 Average dry gas meter temp deg F 549 6600 5450 Average absolute meter temp deg R 5149 5260 5145 Sample vol at meter cond dcl 143580 147394 159313 Meter box calibration Y 09996 09996 10140 Barometric pressure in Hg 3002 3002 3012 Sample volume dscl (1) 148843 149624 168860 Sample volume dscf (1) 5256 5283 5963

VOLUMETRIC FLOW RATE Avg gas stream volumetric flow dscfmin 33787 28485 31136

(1) Standard conditions = 68 deg F (20 deg C) and 2992 inches Hg (760mm Hg)

CHEMOURS-FAYETTEVILLE NCINPUTS FOR EPA MM18 TARGET COMPOUND CALCULATIONS

DIVISION STACK

32

FIELD DATA SHEET Client Chemours Run No

WO 15418002018 Test Method

Project ID CHEM-F Date

ModeSource ID Division Baro Press (in Hg)

Samp Loc Stack Ambient Temp (degF)

Source Division Stk Operator

Sample Time Comments Initial Probe Leak check

Final Probe Leak check

MM 1 S - HFPO Diener Acid Page ~ of ~ 1 Meter Box ID

Modified M18 Meter Box Y Q G

Nov 2019 Probe IDLength Leak Check (in Hg) (~~~ ~bdquo~~~ I I (~Q (1~~ ~

3Q (~Z Probe Material Pitot leak check good yecLpry yes no y~uc_Law

bull ~

~~- ~~ ~~

~ ~~ ~ --~

------ --

Avg Delta H Total Volume Avg Tm Max Temp Max Vac Max Temp

33

FIELD DATA SHEET Client

W O

Project ID

ModeSource ID

Samp Loc

Source

Comments

Chemours Run No

15418002018 Test Method

CHEM-F Date

Division Baro Press (in Hg)

Stack Ambient Temp (degF)

Division Stk Operator

Sample Time

Initial Probe Leak check Final Probe Leak check

MM 18 - HFPO Dimer Acid 2 Meter Box ID ~0

Modified M18 Meter Box Y G~ ~+ Nov 2019 Probe IDLength Leak Check (in Hg)

~(~ p ~ Probe Material Pitot Teak check good

da W

~~ ~laquo

Page ~ of

pJCH ~~~

yes no yes no

~~~~ r ~~~rl~~~f~r~~~~ ~ ~ ~m~ - ~c~1 ~~~P~~~~i~ ~ ~m~ ~~~c~~~~~l~~~~ ~

m ~ ~_-1

~~bulls~s7xix~~rax a

Hvg ueita n ~ i otai volume

35~ ~ I~1~~ Hvg i m Hoax I emp Max Vac Max Temp

l~ ~

34

~~v S~~-~Ll~

SAMPLE RECOVERY FIELD DATA

Client r~i4 ~`~ WO LocationPlant ~ ~~ bdquomdash r Source ampLocation J I~

Run No Sample Date ~~~~ ~ Recovery Date gt ~

Sample ID ~ ~~(~ Analyst ~ ~ Filter Number

Im in er 1 2 3 4 5 6 7 Im Total 8 Total

Contents Silica Gel

Final ~~ ~~j~zj ~ ~~7i ~ ~

~ `~ 1

Initial ~ G~ ~~ ~ ~ ~~ ~ ~ ~ utJ~ ~d

ca~~ I3 ~- -_~ i ImpingerColor ~A~ j~=~~ Labeled

mdash~ Silica Gel Condition Sealed

Run No ~ Sample Date ~ ~~ Recovery Date ~~~

Sample ID Analyst Filter Number ~~

Im in er 1 2 3 4 5 6 7 ImpTotai 8 Total

Contents Silica Gel

Final ~~r ~ 1o~i(~ ~0~ ~ ~Os

Initial ~ rs b~~~~ ~~~ ~~ Q ~~ f

Gain ~s d d

Impinger Color ~j ( ~ Labeled

Silica Gel Condition Sealed

Run No lf~ Sample Dated ~ ~ Recovery Date ~~ tmdash

Sample ID ~ Analyst Filter Number

Im in er 1 2 3 4 5 6 7 ImpTotal 8 Total

Contents Silica Gel

Final ~ t ~~r ~ b s ~ ~ 0 ~1 ~~~ b~

initial ~ ~ = ~ v b ~~gt ~ ~ ~~ - ~j

Gain ~ 4 ~G(~j~ ~ Impinger Color -~ ~ La~ed

Silica Gel Condition Sealed

Check COC for Sample IDs of Media Blanks ~ ~~

~

~~

35

FIELD DATA SHEET MM 18 Client Chemours Run No 1 Meter Box ID

WO 15418002018 Test Method Modified M18 Meter Box Y D I~

Project ID CHEM-F Date ~I Dec 2019 Probe IDLength Leak Check (in Hg)

ModeSource ID VE NoRh Baro Press (in Hg) 3~~ Probe Mate~ai Pitot leak check good Samp Loc Stack Ambient Temp (degF) O

Source Division Operator f

Sample Time ~~ M~

Comments Initial Probe Leak check ~~ a ~~pi~

Final Probe Leak check ~~i y ~r~~~p

Page ~ of

yes no yes no yes no

a~ ~a~~~ o~r~~~~

~~~ ~~~~a~ ~~~ ~

~~~~ I ~~ ~~ ~ ~ ~~~~~~~~~ ~~~~em~~

--- -- ~~-

--~ -- ~~-~ Avg Delta HJ Total Volume Avg Tm MaxTemp Max Vac Max Temp

36

SAMPLE RECOVERY FIELD DATA

Client ~ ~ lam C~1` s WO l~ 4 l~ gt~ti~- =~~ ~vi LocatioNPlant r-c~ t~ Source ampLocation ~ C JV~3c- mdash ~ y~~ ~~ 5

Run No 3 Sample Date Iz-~ ~-1 mdash j ~ Recovery Date ~~9

Sample ID Analyst Filter Number i l~ Im in er

1 2 3 4 5 6 7 Im Total 8 Total Contents Silica Gel

Final 4 ~ ~ G~ U ~O ~ ~ C1 ~~ 3 ~ _

Initial ~ ~ ~ C1~ bull ~- L ~c3~-~j ~ 13~

Gain C~ ~ d + t ~ ~ ~L O ~ ~ ~ v r C7 r

Impinger Color ______~~ Labeled r

Silica Gel Condition +~U Sealed

Run No Sample Date Recovery Date

Sample ID Analyst Filter Number

Im in er 1 2 3 4 5 6 7 ImpTotal 8 Total

Contents ~ Silica Gel

Final

Initial ~~~ ~~0 607` ~C~ ~~ ~~ ~ f3 ~3

Gain

Impinger Color Labeled

Silica Gel Condition Sealed

Run No Sample Date Recovery Date

Sample ID Analyst Filter Number

Im in er 1 2 3 4 5 6 7 ImpTotal 8 Total

Contents Silica Gel

Final

Initial

Gain

Impinger Color Labeled

Silica Gel Condition Sealed

Check COC for Sample IDs of Media Blanks ~`

k3aT~AF c

37

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

APPENDIX C LABORATORY ANALYTICAL REPORT

38

ANALYTICAL REPORTJob Number 140-17458-1

Job Description VEN Stack - M0010

Contract Number LBIO-67048

ForChemours Company FC LLC The

co AECOMSabre Building Suite 300

4051 Ogletown RoadNewark DE 19713

Attention Michael Aucoin

_____________________________________________

Approved for releaseCourtney M AdkinsProject Manager II12102019 307 PM

Courtney M Adkins Project Manager II5815 Middlebrook Pike Knoxville TN 37921

(865)291-3000courtneyadkinstestamericainccom

12102019

This report may not be reproduced except in full and with written approval from the laboratory For questions please contact the Project Manager atthe e-mail address or telephone number listed on this page

The test results in this report relate only to the samples as received by the laboratory and will meet all requirements of the methodology with anyexceptions noted This report shall not be reproduced except in full without the express written approval of the laboratory All questions should bedirected to the Eurofins TestAmerica Project Manager

This report has been electronically signed and authorized by the signatory Electronic signature is intended to be the legally binding equivalent of atraditionally handwritten signature

Eurofins TestAmerica Knoxville

5815 Middlebrook Pike Knoxville TN 37921

Tel (865) 291-3000 Fax (865) 584-4315 wwwtestamericainccom

12102019Page 1 of 21339

Table of ContentsCover Title Page 1

Data Summaries 4

Definitions 4

Method Summary 5

Sample Summary 6

Case Narrative 7

QC Association 9

Client Sample Results 11

Default Detection Limits 13

Surrogate Summary 14

QC Sample Results 15

Chronicle 18

Certification Summary 22

Manual Integration Summary 24

Organic Sample Data 25

LCMS 25

8321A_HFPO_Du 258321A_HFPO_Du QC Summary 268321A_HFPO_Du Sample Data 32Standards Data 40

8321A_HFPO_Du ICAL Data 408321A_HFPO_Du CCAL Data 63

Raw QC Data 758321A_HFPO_Du Tune Data 758321A_HFPO_Du Blank Data 808321A_HFPO_Du LCSLCSD Data 92

12102019Page 2 of 21340

Table of Contents8321A_HFPO_Du Run Logs 1058321A_HFPO_Du Prep Data 107

Method DV-LC-0012 114Method DV-LC-0012 QC Summary 115Method DV-LC-0012 Sample Data 123Standards Data 147

Method DV-LC-0012 CCAL Data 147Raw QC Data 165

Method DV-LC-0012 Tune Data 165Method DV-LC-0012 Blank Data 170Method DV-LC-0012 LCSLCSD Data 182

Method DV-LC-0012 Run Logs 198Method DV-LC-0012 Prep Data 200

Shipping and Receiving Documents 206

Client Chain of Custody 207

12102019Page 3 of 21341

DefinitionsGlossaryJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

Qualifiers

LCMSQualifier Description

LCS or LCSD is outside acceptance limits

Qualifier

B Compound was found in the blank and sample

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

GlossaryThese commonly used abbreviations may or may not be present in this report

curren Listed under the D column to designate that the result is reported on a dry weight basis

Abbreviation

R Percent Recovery

CFL Contains Free Liquid

CNF Contains No Free Liquid

DER Duplicate Error Ratio (normalized absolute difference)

Dil Fac Dilution Factor

DL Detection Limit (DoDDOE)

DL RA RE IN Indicates a Dilution Re-analysis Re-extraction or additional Initial metalsanion analysis of the sample

DLC Decision Level Concentration (Radiochemistry)

EDL Estimated Detection Limit (Dioxin)

LOD Limit of Detection (DoDDOE)

LOQ Limit of Quantitation (DoDDOE)

MDA Minimum Detectable Activity (Radiochemistry)

MDC Minimum Detectable Concentration (Radiochemistry)

MDL Method Detection Limit

ML Minimum Level (Dioxin)

NC Not Calculated

ND Not Detected at the reporting limit (or MDL or EDL if shown)

PQL Practical Quantitation Limit

QC Quality Control

RER Relative Error Ratio (Radiochemistry)

RL Reporting Limit or Requested Limit (Radiochemistry)

RPD Relative Percent Difference a measure of the relative difference between two points

TEF Toxicity Equivalent Factor (Dioxin)

TEQ Toxicity Equivalent Quotient (Dioxin)

Eurofins TestAmerica Knoxville

12102019Page 4 of 21342

Method SummaryJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

Method Method Description LaboratoryProtocol

SW8468321A HFPO-DA TAL DEN

SW8468321A PFOA and PFOS TAL DEN

TAL SOPNone Leaching Procedure TAL DEN

TAL SOPNone Leaching Procedure for Condensate TAL DEN

TAL SOPNone Leaching Procedure for XAD TAL DEN

Protocol References

SW846 = Test Methods For Evaluating Solid Waste PhysicalChemical Methods Third Edition November 1986 And Its Updates

TAL SOP = TestAmerica Laboratories Standard Operating Procedure

Laboratory References

TAL DEN = Eurofins TestAmerica Denver 4955 Yarrow Street Arvada CO 80002 TEL (303)736-0100

Eurofins TestAmerica Knoxville

12102019Page 5 of 21343

Sample SummaryJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

Lab Sample ID Client Sample ID ReceivedCollectedMatrix Asset ID

140-17458-1 G-25772578 DIV VEN STACK R1 M0010 FH Air 112219 0000 112519 0800

140-17458-2 G-257925802582 DIV VEN STACK R1 M0010

BH

Air 112219 0000 112519 0800

140-17458-3 G-2581 DIV VEN STACK R1 M0010 IMPINGERS

12amp3 COND

Air 112219 0000 112519 0800

140-17458-4 G-2583 DIV VEN STACK R1 M0010

BREAKTHROUGH XAD-2 RESIN TUBE

Air 112219 0000 112519 0800

140-17458-5 G-25842585 DIV VEN STACK R2 M0010 FH Air 112219 0000 112519 0800

140-17458-6 G-258625872589 DIV VEN STACK R2 M0010

BH

Air 112219 0000 112519 0800

140-17458-7 G-2588 DIV VEN STACK R2 M0010 IMPINGERS

12amp3 COND

Air 112219 0000 112519 0800

140-17458-8 G-2590 DIV VEN STACK R2 M0010

BREAKTHROUGH XAD-2 RESIN TUBE

Air 112219 0000 112519 0800

Eurofins TestAmerica Knoxville

12102019Page 6 of 21344

Job Narrative140-17458-1

Sample Receipt

The samples were received on November 25 2019 at 800 AM in good condition and properly preserved The temperature of the cooler at receipt was 16ordm C

Quality Control and Data Interpretation

Unless otherwise noted all holding times and QC criteria were met and the test results shown in this report meet all applicable NELAC requirements

Method 0010Method 3542 Sampling Train Preparation

Train fractions were extracted and prepared for analysis in TestAmericarsquos Knoxville laboratory Extracts and condensate samples were forwarded to the Denver laboratory for HFPO-DA analysis All results are reported in ldquoTotal ugrdquo per sample

LCMS

Method 8321A The following samples were inadvertently spiked with a native solution of HFPO-DA rather than the isotope dilution

internal standard prior to extraction in the Knoxville Laboratory

middot DIV VEN Stack R1 FHmiddot DIV VEN Stack R1 BHmiddot DIV VEN R1 Breakthrough middot DIV VEN Stack R2 FHmiddot DIV VEN Stack R2 BHmiddot DIV VEN R2 Breakthrough

As a result these samples received a relatively small fortification of the native HFPO-DA and no labeled IDA as typically applied Upon

discovery of the processing issue the IDAs were post spiked onto the extracted samples which were then re-analyzed to acquire the

Total HFPO-DA content in the samples The spiked amount of native HFPO-DA was subsequently subtracted from the Total HFPO-DA

and the corrected concentration is reported in with the data set below

Please note that under these conditions the affected samples are not corrected for extraction losses through isotope dilution internal

standard data reduction However the HFPO-DA concentrations are accurate and useful for their intended purpose

Method 8321A The laboratory control sample (LCS) and or laboratory control sample duplicate (LCSD) for preparation batch 280-478940 and analytical batch 280-479928 recovered outside control limits for the following analytes HFPO These analytes were biased high in the LCS and were not detected in the associated samples therefore the data have been reported

No additional analytical or quality issues were noted other than those described above or in the DefinitionsGlossary page

Organic Prep

No analytical or quality issues were noted other than those described in the DefinitionsGlossary page

12102019Page 7 of 21345

Chemours VES Carbon Bed Outlet Test Analytical Report TestAmerica Job No 140-17458-1

December 10 2019

OUsers FoldersAdkinsCProject DocumentsSpecial ReportingChemours Corrected ValuesFayettevilleChemours Corrected Results HFPO-DA_DIV VEN Stack_12102019docx Created on 01302018 Last edited on 12102019 302 PM

The following samples were inadvertently spiked with a native solution of HFPO-DA prior to extraction

in the Knoxville laboratory

DIV VEN Stack R1 FH

DIV VEN Stack R1 BH

DIV VEN R1 Breakthrough

DIV VEN Stack R2 FH

DIV VEN Stack R2 BH

DIV VEN R2 Breakthrough

The HFPO-DA results presented below have been corrected to remove the laboratory contribution from the final result

TALS ID Client ID HFPO-DA Result (ugsample)

HFPO-DA Added in the lab

(ugsample)

HFPO-DA Corrected Result

(ugsample)

140-17458-1 DIV VEN Stack R1 FH

986 2 786

140-17458-2 DIV VEN Stack R1 BH

213 7 143

140-17458-4 DIV VEN R1 Breakthrough

230 4 ND

140-17458-5 DIV VEN Stack R2 FH

658 25 408

140-17458-6 DIV VEN Stack R2 BH

363 65 298

140-17458-8 DIV VEN R2 Breakthrough

219 4 ND

12102019Page 8 of 21346

QC Association SummaryJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

LCMS

Analysis Batch 464589

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321ADLCK 280-46458913 Lab Control Sample TotalNA

Prep Batch 478940

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air None140-17458-1 G-25772578 DIV VEN STACK R1 M0010 FH TotalNA

Air None140-17458-5 G-25842585 DIV VEN STACK R2 M0010 FH TotalNA

Air NoneMB 280-47894014-A Method Blank TotalNA

Air NoneMB 280-4789401-A Method Blank TotalNA

Air NoneLCS 280-4789402-A Lab Control Sample TotalNA

Air NoneLCSD 280-4789403-A Lab Control Sample Dup TotalNA

Prep Batch 478993

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air None140-17458-3 G-2581 DIV VEN STACK R1 M0010 IMPINGERS 12amp3 CONDTotalNA

Air None140-17458-7 G-2588 DIV VEN STACK R2 M0010 IMPINGERS 12amp3 CONDTotalNA

Air NoneMB 280-47899314-A Method Blank TotalNA

Air NoneMB 280-4789931-A Method Blank TotalNA

Air NoneLCS 280-4789932-A Lab Control Sample TotalNA

Air NoneLCSD 280-4789933-A Lab Control Sample Dup TotalNA

Prep Batch 479245

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air None140-17458-2 G-257925802582 DIV VEN STACK R1 M0010 BHTotalNA

Air None140-17458-4 G-2583 DIV VEN STACK R1 M0010 BREAKTHROUGH XAD-2 RESIN TUBETotalNA

Air None140-17458-6 G-258625872589 DIV VEN STACK R2 M0010 BHTotalNA

Air None140-17458-8 G-2590 DIV VEN STACK R2 M0010 BREAKTHROUGH XAD-2 RESIN TUBETotalNA

Air NoneMB 280-4792451-A Method Blank TotalNA

Air NoneLCS 280-4792452-A Lab Control Sample TotalNA

Air NoneLCSD 280-4792453-A Lab Control Sample Dup TotalNA

Analysis Batch 479814

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321A 478993140-17458-3 G-2581 DIV VEN STACK R1 M0010 IMPINGERS 12amp3 CONDTotalNA

Air 8321A 478993140-17458-7 G-2588 DIV VEN STACK R2 M0010 IMPINGERS 12amp3 CONDTotalNA

Air 8321A 478993MB 280-47899314-A Method Blank TotalNA

Air 8321A 478993MB 280-4789931-A Method Blank TotalNA

Air 8321A 478993LCS 280-4789932-A Lab Control Sample TotalNA

Air 8321A 478993LCSD 280-4789933-A Lab Control Sample Dup TotalNA

Analysis Batch 479928

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321A 478940140-17458-1 G-25772578 DIV VEN STACK R1 M0010 FH TotalNA

Air 8321A 478940140-17458-5 G-25842585 DIV VEN STACK R2 M0010 FH TotalNA

Air 8321A 478940MB 280-47894014-A Method Blank TotalNA

Air 8321A 478940MB 280-4789401-A Method Blank TotalNA

Air 8321A 478940LCS 280-4789402-A Lab Control Sample TotalNA

Air 8321A 478940LCSD 280-4789403-A Lab Control Sample Dup TotalNA

Analysis Batch 479929

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321A 479245140-17458-2 G-257925802582 DIV VEN STACK R1 M0010 BHTotalNA

Eurofins TestAmerica Knoxville

12102019Page 9 of 21347

QC Association SummaryJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

LCMS (Continued)

Analysis Batch 479929 (Continued)

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321A 479245140-17458-4 G-2583 DIV VEN STACK R1 M0010 BREAKTHROUGH XAD-2 RESIN TUBETotalNA

Air 8321A 479245140-17458-6 G-258625872589 DIV VEN STACK R2 M0010 BHTotalNA

Air 8321A 479245140-17458-8 G-2590 DIV VEN STACK R2 M0010 BREAKTHROUGH XAD-2 RESIN TUBETotalNA

Air 8321A 479245MB 280-4792451-A Method Blank TotalNA

Air 8321A 479245LCS 280-4792452-A Lab Control Sample TotalNA

Air 8321A 479245LCSD 280-4792453-A Lab Control Sample Dup TotalNA

Eurofins TestAmerica Knoxville

12102019Page 10 of 21348

Client Sample ResultsJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

Lab Sample ID 140-17458-1Client Sample ID G-25772578 DIV VEN STACK R1 M0010 FHMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Air Train

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 986 B 0100 00108 ugSample 112719 0804 120819 0915 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 133 50 - 200 112719 0804 120819 0915 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Lab Sample ID 140-17458-2Client Sample ID G-257925802582 DIV VEN STACK R1 M0010 BH

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Air Train

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 213 B 0350 00700 ugSample 120219 1125 120819 0955 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 116 50 - 200 120219 1125 120819 0955 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Lab Sample ID 140-17458-3Client Sample ID G-2581 DIV VEN STACK R1 M0010 IMPINGERS 12amp3 COND

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Air Train

Method 8321A - HFPO-DARL MDL

HFPO-DA 0145 J 0212 00108 ugSample 112719 1236 120619 1241 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 116 50 - 200 112719 1236 120619 1241 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Lab Sample ID 140-17458-4Client Sample ID G-2583 DIV VEN STACK R1 M0010 BREAKTHROUGH XAD-2 RESIN TUBE

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Air Train

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 230 B 0200 00400 ugSample 120219 1125 120819 0958 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 126 50 - 200 120219 1125 120819 0958 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Eurofins TestAmerica Knoxville

12102019Page 11 of 21349

Client Sample ResultsJob ID 140-17458-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - M0010

Lab Sample ID 140-17458-5Client Sample ID G-25842585 DIV VEN STACK R2 M0010 FHMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Air Train

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 658 B 0125 00135 ugSample 112719 0804 120819 0919 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 136 50 - 200 112719 0804 120819 0919 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Lab Sample ID 140-17458-6Client Sample ID G-258625872589 DIV VEN STACK R2 M0010 BH

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Air Train

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 363 B 0325 00650 ugSample 120219 1125 120819 1001 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 100 50 - 200 120219 1125 120819 1001 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Lab Sample ID 140-17458-7Client Sample ID G-2588 DIV VEN STACK R2 M0010 IMPINGERS 12amp3 COND

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Air Train

Method 8321A - HFPO-DARL MDL

HFPO-DA ND 0196 000999 ugSample 112719 1236 120619 1244 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 121 50 - 200 112719 1236 120619 1244 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Lab Sample ID 140-17458-8Client Sample ID G-2590 DIV VEN STACK R2 M0010 BREAKTHROUGH XAD-2 RESIN TUBE

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Air Train

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 219 B 0200 00400 ugSample 120219 1125 120819 1004 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 109 50 - 200 120219 1125 120819 1004 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Eurofins TestAmerica Knoxville

12102019Page 12 of 21350

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17458-1ProjectSite VEN Stack - M0010

Method 8321A - HFPO-DAPrep None

000250HFPO-DA ugSample

Analyte UnitsMDLRL

000128

Method 8321A - PFOA and PFOSPrep None

00250HFPO-DA ugSample

Analyte UnitsMDLRL

000270

0100HFPO-DA ugSample00200

Eurofins TestAmerica Knoxville

12102019Page 13 of 21351

ANALYTICAL REPORTJob Number 140-17461-1

Job Description VEN Stack - MM-18

Contract Number LBIO-67048

ForChemours Company FC LLC The

co AECOMSabre Building Suite 300

4051 Ogletown RoadNewark DE 19713

Attention Michael Aucoin

_____________________________________________

Approved for releaseCourtney M AdkinsProject Manager II12232019 300 PM

Courtney M Adkins Project Manager II5815 Middlebrook Pike Knoxville TN 37921

(865)291-3000 courtneyadkinstestamericainccom

12232019

This report may not be reproduced except in full and with written approval from the laboratory For questions please contact the Project Manager atthe e-mail address or telephone number listed on this page

The test results in this report relate only to the samples as received by the laboratory and will meet all requirements of the methodology with anyexceptions noted This report shall not be reproduced except in full without the express written approval of the laboratory All questions should bedirected to the Eurofins TestAmerica Project Manager

This report has been electronically signed and authorized by the signatory Electronic signature is intended to be the legally binding equivalent of atraditionally handwritten signature

Eurofins TestAmerica Knoxville

5815 Middlebrook Pike Knoxville TN 37921

Tel (865) 291-3000 Fax (865) 584-4315 wwwtestamericainccom

12232019Page 1 of 89452

Table of ContentsCover Title Page 1

Data Summaries 5

Definitions 5

Method Summary 6

Sample Summary 7

Case Narrative 8

QC Association 10

Client Sample Results 14

Default Detection Limits 43

Surrogate Summary 45

QC Sample Results 46

Chronicle 54

Certification Summary 63

Manual Integration Summary 64

Organic Sample Data 77

GCMS VOA 77

Method 8260B 77Method 8260B QC Summary 78Method 8260B Sample Data 93Standards Data 287

Method 8260B ICAL Data 287Method 8260B CCAL Data 389

Raw QC Data 437Method 8260B Tune Data 437Method 8260B Blank Data 453Method 8260B LCSLCSD Data 461

12232019Page 2 of 89453

Table of ContentsMethod 8260B MSMSD Data 474

Method 8260B Run Logs 482Method 8260B Prep Data 495

HPLCIC 498

Method 9056 498Method 9056 QC Summary 499Method 9056 Sample Data 502Standards Data 538

Method 9056 ICAL Data 538Method 9056 CCAL Data 565

Raw QC Data 612Method 9056 Blank Data 612Method 9056 LCSLCSD Data 638Method 9056 MSMSD Data 644

Method 9056 Run Logs 650Method 9056 Prep Data 664

Method 9056A Total Halogens 667Method 9056A Total Halogens QC Summary 668Method 9056A Total Halogens Sample Data 676Standards Data 715

Method 9056A Total Halogens ICAL Data 715Method 9056A Total Halogens CCAL Data 740

Raw QC Data 781Method 9056A Total Halogens Blank Data 781Method 9056A Total Halogens LCSLCSD Data 817Method 9056A Total Halogens MSMSD Data 831

12232019Page 3 of 89454

Table of ContentsMethod 9056A Total Halogens Run Logs 839Method 9056A Total Halogens Prep Data 855

Inorganic Sample Data 864

General Chemistry Data 864

Gen Chem Cover Page 865

Gen Chem Sample Data 866

Gen Chem QC Data 878Gen Chem ICVCCV 878Gen Chem Duplicates 879

Gen Chem MDL 880

Gen Chem Analysis Run Log 881

Gen Chem Prep Data 882

Gen Chem Raw Data 884

Shipping and Receiving Documents 886

Client Chain of Custody 887

12232019Page 4 of 89455

DefinitionsGlossaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Qualifiers

GCMS VOAQualifier Description

LCS or LCSD is outside acceptance limits

Qualifier

H Sample was prepped or analyzed beyond the specified holding time

GCMS VOA TICsQualifier Description

H Sample was prepped or analyzed beyond the specified holding time

Qualifier

J Indicates an Estimated Value for TICs

N Presumptive evidence of material

T Result is a tentatively identified compound (TIC) and an estimated value

HPLCICQualifier Description

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

Qualifier

General ChemistryQualifier Description

HF Field parameter with a holding time of 15 minutes Test performed by laboratory at clients request

Qualifier

GlossaryThese commonly used abbreviations may or may not be present in this report

curren Listed under the D column to designate that the result is reported on a dry weight basis

Abbreviation

R Percent Recovery

CFL Contains Free Liquid

CNF Contains No Free Liquid

DER Duplicate Error Ratio (normalized absolute difference)

Dil Fac Dilution Factor

DL Detection Limit (DoDDOE)

DL RA RE IN Indicates a Dilution Re-analysis Re-extraction or additional Initial metalsanion analysis of the sample

DLC Decision Level Concentration (Radiochemistry)

EDL Estimated Detection Limit (Dioxin)

LOD Limit of Detection (DoDDOE)

LOQ Limit of Quantitation (DoDDOE)

MDA Minimum Detectable Activity (Radiochemistry)

MDC Minimum Detectable Concentration (Radiochemistry)

MDL Method Detection Limit

ML Minimum Level (Dioxin)

NC Not Calculated

ND Not Detected at the reporting limit (or MDL or EDL if shown)

PQL Practical Quantitation Limit

QC Quality Control

RER Relative Error Ratio (Radiochemistry)

RL Reporting Limit or Requested Limit (Radiochemistry)

RPD Relative Percent Difference a measure of the relative difference between two points

TEF Toxicity Equivalent Factor (Dioxin)

TEQ Toxicity Equivalent Quotient (Dioxin)

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12232019Page 5 of 89456

Method SummaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Method Method Description LaboratoryProtocol

SW8468260B Volatile Organic Compounds (GCMS) TAL KNX

SW8469056 Anions Ion Chromatography TAL KNX

SW8469041A pH TAL KNX

SW8465050 Bomb Preparation Method for Solid Waste TAL KNX

NoneMeOH Prep Methanol Impinger Preparation TAL KNX

Protocol References

None = None

SW846 = Test Methods For Evaluating Solid Waste PhysicalChemical Methods Third Edition November 1986 And Its Updates

Laboratory References

TAL KNX = Eurofins TestAmerica Knoxville 5815 Middlebrook Pike Knoxville TN 37921 TEL (865)291-3000

Eurofins TestAmerica Knoxville

12232019Page 6 of 89457

Sample SummaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID Client Sample ID ReceivedCollectedMatrix Asset ID

140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 Air 112219 0000 112519 0800

140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 Air 112219 0000 112519 0800

140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 Air 112219 0000 112519 0800

140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 Air 112219 0000 112519 0800

140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 Air 112219 0000 112519 0800

140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 Air 112219 0000 112519 0800

140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 Air 112219 0000 112519 0800

140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 Air 112219 0000 112519 0800

140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 Air 112219 0000 112519 0800

140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 Air 112219 0000 112519 0800

140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 Air 112219 0000 112519 0800

140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 Air 112219 0000 112519 0800

Eurofins TestAmerica Knoxville

12232019Page 7 of 89458

Job Narrative140-17461-1

Sample Receipt

The samples were received on November 25 2019 at 800 AM in good condition and properly preserved The temperature of the cooler at receipt was 16ordm C

GCMS VOA

Impinger Sample Preparation and Analysis Impinger samples were analyzed for the volatile organic target analytes by purge and trap GCMS using Eurofins TestAmerica Knoxville standard operating procedure KNOX-MS-0015 based on the following method

middot SW-846 8260B ldquoVolatile Organic Compounds by Gas Chromatography Mass Spectrometry (GCMS)rdquo

Each sample is prepared by adding a known amount of sample to the purge water in a purge and trap vessel and spiking with internal standards surrogates and matrix spike analytes (as needed) Volatile compounds are introduced into the gas chromatograph by the purge and trap method The components are separated using the chromatograph and detected using a mass spectrometer which provides both qualitative and quantitative information

Impinger sample results were calculated using the following equation

Concentration μgsample = (C times DF times W times Vt) (Va)WhereC = On-column concentration μgLDF = Dilution factorW = Volume of water purged LVt = Methanol extract final volume μL Va = Volume of extract analyzed microL

Method 8260B The LCS (LCS 140-357061-A) for analytical batch 140-35903 recovered below marginal exceedance limits for Trichlorofluoromethane This is an ongoing instrument issue with LCS recoveries for this analyte The project manager approved moving forward with analysis for the current job

Method 8260B The following samples were analyzed outside of analytical holding time due to ongoing instrumentation problems Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 (140-17461-9) Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 (140-17461-10) Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 (140-17461-11) and Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 (140-17461-12)

No additional analytical or quality issues were noted other than those described above or in the DefinitionsGlossary page

Total Halogens The samples were prepared for total fluorine chlorine bromine andor iodine using SOP number KNOX-WC-0016 (based on ASTM Method E442 and SW-846 Method 5050) The sample is oxidized by combustion in an oxygen flask at atmospheric pressure or a bomb containing oxygen under pressure The liberated halogen compounds are absorbed primarily as halides in a sodium carbonatesodium bicarbonate buffer solution The combustion products are collected by repeated rinsing of the combustion apparatus and analyzed by ion chromatography in accordance with SOP KNOX-WC-0005 (based on SW-846 Method 9056) The results are calculated using the following equation

C = [(Ccom times Vcom) W] times 1000 gKg

WhereC = Concentration of analyte in the sample mgKgCcom = Concentration of analyte in the combustate mgLVcom = Total volume of combustate LW = Weight of sample combusted g

Anions in Impinger Solutions Anions are is determined in accordance to SOP KNOX-WC-0005 (based on methods 3000A and 9056) The samples were diluted a minimum of 120 in ion chromatography solvent buffer solution to reduce the methanol concentration before injection Buffer concentrate was added until the pH was 10 Samples are diluted with ion chromatography eluate solution to bring the concentrations within the calibration range when necessary Higher dilutions are applied as necessary

An aliquot of prepared sample is introduced into the ion chromatograph Anions are identified based on their retention times as compared to those of known standards Quantification is accomplished by measuring the peak response and comparing it to a calibration curve generated from known standards

12232019Page 8 of 89459

The pH of all samples were tested with pH paper QC consisted of initial CCV and LCS which also serve as initial calibration duplicate analysis for every 10 samples and closing CCV A certified thermometer was used to check the ambient temperature

12232019Page 9 of 89460

QC Association SummaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

GCMS VOA

Prep Batch 35706

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air MeOH Prep140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air MeOH Prep140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air MeOH Prep140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH Prep140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air MeOH Prep140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air MeOH Prep140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air MeOH Prep140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH PrepMB 140-357062-A Method Blank TotalNA

Air MeOH PrepLCS 140-357061-A Lab Control Sample TotalNA

Air MeOH Prep140-17461-8 MS Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17461-8 MSD Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Analysis Batch 35903

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8260B 35706140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 8260B 35706140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 8260B 35706140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 8260B 35706140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 8260B 35706140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 8260B 35706140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 8260B 35706140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 8260B 35706140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 8260B 35706140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 8260B 35706140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 8260B 35706140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 8260B 35706140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 8260B 35706MB 140-357062-A Method Blank TotalNA

Air 8260B 35706LCS 140-357061-A Lab Control Sample TotalNA

Air 8260B 35706LCS 140-357061-A Lab Control Sample TotalNA

Air 8260B 35706140-17461-8 MS Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 8260B 35706140-17461-8 MSD Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

HPLCIC

Prep Batch 35705

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH PrepMB 140-3570514-B Method Blank TotalNA

Air MeOH PrepLCS 140-3570515-B Lab Control Sample TotalNA

Air MeOH PrepLCSD 140-3570516-B Lab Control Sample Dup TotalNA

Prep Batch 35706

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air MeOH Prep140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Eurofins TestAmerica Knoxville

12232019Page 10 of 89461

QC Association SummaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

HPLCIC (Continued)

Prep Batch 35706 (Continued)

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air MeOH Prep140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH Prep140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air MeOH Prep140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air MeOH Prep140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air MeOH Prep140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH PrepMB 140-3570617-A Method Blank TotalNA

Air MeOH PrepLCS 140-3570618-A Lab Control Sample TotalNA

Air MeOH PrepLCSD 140-3570619-A Lab Control Sample Dup TotalNA

Air MeOH Prep140-17461-8 MS Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17461-8 MSD Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Prep Batch 35707

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH PrepMB 140-3570717-B Method Blank TotalNA

Air MeOH PrepLCS 140-3570718-B Lab Control Sample TotalNA

Air MeOH PrepLCSD 140-3570719-B Lab Control Sample Dup TotalNA

Prep Batch 35761

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 5050 35706140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 5050 35706140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 5050 35706140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 5050 35706140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 5050 35706140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 5050 35706140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 5050 35706140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 5050 35707MB 140-3570717-B Method Blank TotalNA

Air 5050 35707LCS 140-3570718-B Lab Control Sample TotalNA

Air 5050 35707LCSD 140-3570719-B Lab Control Sample Dup TotalNA

Prep Batch 35762

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 5050 35706140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 5050 35706140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 5050 35706140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 5050 35706140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 5050 35706140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 5050 35705MB 140-3570514-B Method Blank TotalNA

Air 5050 35705LCS 140-3570515-B Lab Control Sample TotalNA

Air 5050 35705LCSD 140-3570516-B Lab Control Sample Dup TotalNA

Air 5050 35706140-17461-8 MS Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 5050 35706140-17461-8 MSD Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Analysis Batch 36005

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35761140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9056 35761140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35761140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

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12232019Page 11 of 89462

QC Association SummaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

HPLCIC (Continued)

Analysis Batch 36005 (Continued)

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35761140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9056 35761140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9056 35761140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9056 35761140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9056 35761MB 140-3570717-B Method Blank TotalNA

Air 9056 35761LCS 140-3570718-B Lab Control Sample TotalNA

Air 9056 35761LCSD 140-3570719-B Lab Control Sample Dup TotalNA

Analysis Batch 36121

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35762140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35762140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9056 35762140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9056 35762140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9056 35762140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9056 35762MB 140-3570514-B Method Blank TotalNA

Air 9056 35762LCS 140-3570515-B Lab Control Sample TotalNA

Air 9056 35762LCSD 140-3570516-B Lab Control Sample Dup TotalNA

Air 9056 35762140-17461-8 MS Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35762140-17461-8 MSD Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Analysis Batch 36210

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35706140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9056 35706140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35706140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9056 35706140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9056 35706140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9056 35706140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9056 35706140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9056 35706140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35706140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9056 35706140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9056 35706140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9056 35706140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9056 35706MB 140-3570617-A Method Blank TotalNA

Air 9056 35706LCS 140-3570618-A Lab Control Sample TotalNA

Air 9056 35706LCSD 140-3570619-A Lab Control Sample Dup TotalNA

Air 9056 35706140-17461-8 MS Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35706140-17461-8 MSD Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

General Chemistry

Analysis Batch 36086

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9041A140-17461-1 Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9041A140-17461-2 Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9041A140-17461-3 Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9041A140-17461-4 Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9041A140-17461-5 Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9041A140-17461-6 Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6 TotalNA

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QC Association SummaryJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

General Chemistry (Continued)

Analysis Batch 36086 (Continued)

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9041A140-17461-7 Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9041A140-17461-8 Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9041A140-17461-9 Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9041A140-17461-10 Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9041A140-17461-11 Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9041A140-17461-12 Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9041ALCS 140-360862 Lab Control Sample TotalNA

Air 9041A140-17461-1 DU Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9041A140-17461-2 DU Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9041A140-17461-3 DU Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3 TotalNA

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-1Client Sample ID Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 426 562 ugSample 112919 1048 120619 2054 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

852 852 ugSample 112919 1048 120619 2054 111133-Pentafluorobutane ND

426 613 ugSample 112919 1048 120619 2054 1111-Trichloroethane ND

852 169 ugSample 112919 1048 120619 2054 1111-Trifluoro-22-dichloroethane ND

852 852 ugSample 112919 1048 120619 2054 1111-Trifluoroethane ND

426 818 ugSample 112919 1048 120619 2054 11122-Tetrachloroethane ND

852 477 ugSample 112919 1048 120619 2054 1112-Trichloro-122-trifluoroethane ND

852 852 ugSample 112919 1048 120619 2054 1112-trichloro-1-fluoroethane ND

426 443 ugSample 112919 1048 120619 2054 1112-Trichloroethane ND

852 426 ugSample 112919 1048 120619 2054 111-Dichloro-1-fluoroethane ND

852 852 ugSample 112919 1048 120619 2054 111-dichloro-22-difluoroethane ND

852 852 ugSample 112919 1048 120619 2054 111-dichloro-22-difluoroethene ND

426 511 ugSample 112919 1048 120619 2054 111-Dichloroethane ND

426 630 ugSample 112919 1048 120619 2054 111-Dichloroethene ND

426 460 ugSample 112919 1048 120619 2054 111-Dichloropropene ND

852 852 ugSample 112919 1048 120619 2054 111-Difluoroethene ND

852 852 ugSample 112919 1048 120619 2054 1122-trichloro-11-difluoroethane ND

426 136 ugSample 112919 1048 120619 2054 1123-Trichlorobenzene ND

426 106 ugSample 112919 1048 120619 2054 1123-Trichloropropane ND

426 143 ugSample 112919 1048 120619 2054 1124-Trichlorobenzene ND

426 886 ugSample 112919 1048 120619 2054 1124-Trimethylbenzene ND

852 150 ugSample 112919 1048 120619 2054 112-Dibromo-3-Chloropropane ND

426 562 ugSample 112919 1048 120619 2054 112-Dibromoethane (EDB) ND

852 852 ugSample 112919 1048 120619 2054 112-dichloro-11-difluoroethane ND

426 749 ugSample 112919 1048 120619 2054 112-Dichlorobenzene ND

426 715 ugSample 112919 1048 120619 2054 112-Dichloroethane ND

426 426 ugSample 112919 1048 120619 2054 112-Dichloropropane ND

426 886 ugSample 112919 1048 120619 2054 1135-Trimethylbenzene ND

426 732 ugSample 112919 1048 120619 2054 113-Dichlorobenzene ND

426 477 ugSample 112919 1048 120619 2054 113-Dichloropropane ND

426 852 ugSample 112919 1048 120619 2054 114-Dichlorobenzene ND

852 869 ugSample 112919 1048 120619 2054 11-Chloro-11-difluoroethane ND

852 852 ugSample 112919 1048 120619 2054 122-dichloro-11-difluoroethylmethyl

ether

ND

426 124 ugSample 112919 1048 120619 2054 122-Dichloropropane ND

170 273 ugSample 112919 1048 120619 2054 12-Butanone (MEK) ND

852 126 ugSample 112919 1048 120619 2054 12-chloro-111444-hexafluoro-2-but

ene

ND

852 852 ugSample 112919 1048 120619 2054 12-Chloro-111-Trifluoroethane ND

426 801 ugSample 112919 1048 120619 2054 12-Chlorotoluene ND

170 392 ugSample 112919 1048 120619 2054 12-Hexanone ND

372 372 ugSample 112919 1048 120619 2054 12-MTP as HFPO 820

426 886 ugSample 112919 1048 120619 2054 14-Chlorotoluene ND

426 114 ugSample 112919 1048 120619 2054 14-Isopropyltoluene ND

170 273 ugSample 112919 1048 120619 2054 14-Methyl-2-pentanone (MIBK) ND

170 101 ugSample 112919 1048 120619 2054 1Acetone ND

426 818 ugSample 112919 1048 120619 2054 1Benzene ND

426 596 ugSample 112919 1048 120619 2054 1Bromobenzene ND

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-1Client Sample ID Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromochloromethane ND 426 954 ugSample 112919 1048 120619 2054 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

426 732 ugSample 112919 1048 120619 2054 1Bromodichloromethane ND

426 129 ugSample 112919 1048 120619 2054 1Bromoform ND

852 494 ugSample 112919 1048 120619 2054 1Bromomethane ND

426 106 ugSample 112919 1048 120619 2054 1Carbon disulfide ND

426 562 ugSample 112919 1048 120619 2054 1Carbon tetrachloride ND

125 125 ugSample 112919 1048 120619 2054 1Carbonyl Difluoride ND

426 613 ugSample 112919 1048 120619 2054 1Chlorobenzene ND

426 920 ugSample 112919 1048 120619 2054 1Chlorodibromomethane ND

852 187 ugSample 112919 1048 120619 2054 1Chloroethane ND

426 494 ugSample 112919 1048 120619 2054 1Chloroform ND

852 354 ugSample 112919 1048 120619 2054 1Chloromethane ND

426 341 ugSample 112919 1048 120619 2054 1cis-12-Dichloroethene ND

426 732 ugSample 112919 1048 120619 2054 1cis-13-Dichloropropene ND

426 409 ugSample 112919 1048 120619 2054 1Dibromomethane ND

852 150 ugSample 112919 1048 120619 2054 1Dichlorodifluoromethane ND

426 698 ugSample 112919 1048 120619 2054 1Ethylbenzene ND

426 426 ugSample 112919 1048 120619 2054 1Heptafluoropropyl 1222-tetrafluoroethyl ether

111

426 112 ugSample 112919 1048 120619 2054 1Hexachlorobutadiene ND

409 409 ugSample 112919 1048 120619 2054 1HFPO dimer methyl ester as

HFPO-DA

ND

426 596 ugSample 112919 1048 120619 2054 1Isopropylbenzene ND

852 698 ugSample 112919 1048 120619 2054 1mp-Xylene ND

426 273 ugSample 112919 1048 120619 2054 1Methylene Chloride 687

426 204 ugSample 112919 1048 120619 2054 1Naphthalene ND

426 109 ugSample 112919 1048 120619 2054 1n-Butylbenzene ND

426 920 ugSample 112919 1048 120619 2054 1n-Propylbenzene ND

426 443 ugSample 112919 1048 120619 2054 1o-Xylene ND

426 835 ugSample 112919 1048 120619 2054 1sec-Butylbenzene ND

426 920 ugSample 112919 1048 120619 2054 1Styrene ND

426 749 ugSample 112919 1048 120619 2054 1tert-Butylbenzene ND

426 562 ugSample 112919 1048 120619 2054 1Tetrachloroethene ND

426 784 ugSample 112919 1048 120619 2054 1Toluene ND

426 443 ugSample 112919 1048 120619 2054 1trans-12-Dichloroethene ND

426 150 ugSample 112919 1048 120619 2054 1trans-13-Dichloropropene ND

426 307 ugSample 112919 1048 120619 2054 1Trichloroethene ND

852 818 ugSample 112919 1048 120619 2054 1Trichlorofluoromethane ND

852 204 ugSample 112919 1048 120619 2054 1Vinyl chloride ND

Butanoic acid heptafluoro- sodium

salt

437 T J N ugSample 113 2218-54-4 112919 1048 120619 2054 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2054112919 1048T JUnknown 489 ugSample 118

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1048 120619 2054 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 110 112919 1048 120619 2054 157 - 152

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-1Client Sample ID Y-2964 R1 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)

Dibromofluoromethane (Surr) 104 62 - 134 112919 1048 120619 2054 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Toluene-d8 (Surr) 97 112919 1048 120619 2054 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine ND 9080 4540 ugSample 112919 1048 121119 2121 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

3750 1700 ugSample 112919 1048 121719 1902 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-2Client Sample ID Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 461 608 ugSample 112919 1048 120619 2119 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

922 922 ugSample 112919 1048 120619 2119 111133-Pentafluorobutane ND

461 664 ugSample 112919 1048 120619 2119 1111-Trichloroethane ND

922 182 ugSample 112919 1048 120619 2119 1111-Trifluoro-22-dichloroethane ND

922 922 ugSample 112919 1048 120619 2119 1111-Trifluoroethane ND

461 885 ugSample 112919 1048 120619 2119 11122-Tetrachloroethane ND

922 516 ugSample 112919 1048 120619 2119 1112-Trichloro-122-trifluoroethane ND

922 922 ugSample 112919 1048 120619 2119 1112-trichloro-1-fluoroethane ND

461 479 ugSample 112919 1048 120619 2119 1112-Trichloroethane ND

922 461 ugSample 112919 1048 120619 2119 111-Dichloro-1-fluoroethane ND

922 922 ugSample 112919 1048 120619 2119 111-dichloro-22-difluoroethane ND

922 922 ugSample 112919 1048 120619 2119 111-dichloro-22-difluoroethene ND

461 553 ugSample 112919 1048 120619 2119 111-Dichloroethane ND

461 682 ugSample 112919 1048 120619 2119 111-Dichloroethene ND

461 498 ugSample 112919 1048 120619 2119 111-Dichloropropene ND

922 922 ugSample 112919 1048 120619 2119 111-Difluoroethene ND

922 922 ugSample 112919 1048 120619 2119 1122-trichloro-11-difluoroethane ND

461 147 ugSample 112919 1048 120619 2119 1123-Trichlorobenzene ND

461 114 ugSample 112919 1048 120619 2119 1123-Trichloropropane ND

461 155 ugSample 112919 1048 120619 2119 1124-Trichlorobenzene ND

461 959 ugSample 112919 1048 120619 2119 1124-Trimethylbenzene ND

922 162 ugSample 112919 1048 120619 2119 112-Dibromo-3-Chloropropane ND

461 608 ugSample 112919 1048 120619 2119 112-Dibromoethane (EDB) ND

922 922 ugSample 112919 1048 120619 2119 112-dichloro-11-difluoroethane ND

461 811 ugSample 112919 1048 120619 2119 112-Dichlorobenzene ND

461 774 ugSample 112919 1048 120619 2119 112-Dichloroethane ND

461 461 ugSample 112919 1048 120619 2119 112-Dichloropropane ND

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-2Client Sample ID Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

135-Trimethylbenzene ND 461 959 ugSample 112919 1048 120619 2119 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

461 793 ugSample 112919 1048 120619 2119 113-Dichlorobenzene ND

461 516 ugSample 112919 1048 120619 2119 113-Dichloropropane ND

461 922 ugSample 112919 1048 120619 2119 114-Dichlorobenzene ND

922 940 ugSample 112919 1048 120619 2119 11-Chloro-11-difluoroethane ND

922 922 ugSample 112919 1048 120619 2119 122-dichloro-11-difluoroethylmethyl

ether

ND

461 135 ugSample 112919 1048 120619 2119 122-Dichloropropane ND

184 295 ugSample 112919 1048 120619 2119 12-Butanone (MEK) ND

922 136 ugSample 112919 1048 120619 2119 12-chloro-111444-hexafluoro-2-but

ene

ND

922 922 ugSample 112919 1048 120619 2119 12-Chloro-111-Trifluoroethane ND

461 866 ugSample 112919 1048 120619 2119 12-Chlorotoluene ND

184 424 ugSample 112919 1048 120619 2119 12-Hexanone ND

403 403 ugSample 112919 1048 120619 2119 12-MTP as HFPO 819

461 959 ugSample 112919 1048 120619 2119 14-Chlorotoluene ND

461 124 ugSample 112919 1048 120619 2119 14-Isopropyltoluene ND

184 295 ugSample 112919 1048 120619 2119 14-Methyl-2-pentanone (MIBK) ND

184 109 ugSample 112919 1048 120619 2119 1Acetone ND

461 885 ugSample 112919 1048 120619 2119 1Benzene ND

461 645 ugSample 112919 1048 120619 2119 1Bromobenzene ND

461 103 ugSample 112919 1048 120619 2119 1Bromochloromethane ND

461 793 ugSample 112919 1048 120619 2119 1Bromodichloromethane ND

461 140 ugSample 112919 1048 120619 2119 1Bromoform ND

922 535 ugSample 112919 1048 120619 2119 1Bromomethane ND

461 114 ugSample 112919 1048 120619 2119 1Carbon disulfide ND

461 608 ugSample 112919 1048 120619 2119 1Carbon tetrachloride ND

135 135 ugSample 112919 1048 120619 2119 1Carbonyl Difluoride ND

461 664 ugSample 112919 1048 120619 2119 1Chlorobenzene ND

461 995 ugSample 112919 1048 120619 2119 1Chlorodibromomethane ND

922 203 ugSample 112919 1048 120619 2119 1Chloroethane ND

461 535 ugSample 112919 1048 120619 2119 1Chloroform ND

922 383 ugSample 112919 1048 120619 2119 1Chloromethane ND

461 369 ugSample 112919 1048 120619 2119 1cis-12-Dichloroethene ND

461 793 ugSample 112919 1048 120619 2119 1cis-13-Dichloropropene ND

461 442 ugSample 112919 1048 120619 2119 1Dibromomethane ND

922 162 ugSample 112919 1048 120619 2119 1Dichlorodifluoromethane ND

461 756 ugSample 112919 1048 120619 2119 1Ethylbenzene ND

461 461 ugSample 112919 1048 120619 2119 1Heptafluoropropyl 1222-tetrafluoroethyl ether

161

461 122 ugSample 112919 1048 120619 2119 1Hexachlorobutadiene ND

442 442 ugSample 112919 1048 120619 2119 1HFPO dimer methyl ester as

HFPO-DA

ND

461 645 ugSample 112919 1048 120619 2119 1Isopropylbenzene ND

922 756 ugSample 112919 1048 120619 2119 1mp-Xylene ND

461 295 ugSample 112919 1048 120619 2119 1Methylene Chloride 568

461 221 ugSample 112919 1048 120619 2119 1Naphthalene ND

461 118 ugSample 112919 1048 120619 2119 1n-Butylbenzene ND

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-2Client Sample ID Y-2965 R1 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

n-Propylbenzene ND 461 995 ugSample 112919 1048 120619 2119 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

461 479 ugSample 112919 1048 120619 2119 1o-Xylene ND

461 903 ugSample 112919 1048 120619 2119 1sec-Butylbenzene ND

461 995 ugSample 112919 1048 120619 2119 1Styrene ND

461 811 ugSample 112919 1048 120619 2119 1tert-Butylbenzene ND

461 608 ugSample 112919 1048 120619 2119 1Tetrachloroethene ND

461 848 ugSample 112919 1048 120619 2119 1Toluene ND

461 479 ugSample 112919 1048 120619 2119 1trans-12-Dichloroethene ND

461 162 ugSample 112919 1048 120619 2119 1trans-13-Dichloropropene ND

461 332 ugSample 112919 1048 120619 2119 1Trichloroethene ND

922 885 ugSample 112919 1048 120619 2119 1Trichlorofluoromethane ND

922 221 ugSample 112919 1048 120619 2119 1Vinyl chloride ND

Unknown 561 T J ugSample 113 112919 1048 120619 2119 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2119112919 1048T JUnknown 1150 ugSample 118

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1048 120619 2119 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 112919 1048 120619 2119 157 - 152

Dibromofluoromethane (Surr) 104 112919 1048 120619 2119 162 - 134

Toluene-d8 (Surr) 96 112919 1048 120619 2119 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 27900 9830 4920 ugSample 112919 1048 121119 2142 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

4060 1840 ugSample 112919 1048 121719 2006 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-3Client Sample ID Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 858 113 ugSample 112919 1048 120619 2143 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

172 172 ugSample 112919 1048 120619 2143 111133-Pentafluorobutane ND

858 124 ugSample 112919 1048 120619 2143 1111-Trichloroethane ND

172 340 ugSample 112919 1048 120619 2143 1111-Trifluoro-22-dichloroethane ND

172 172 ugSample 112919 1048 120619 2143 1111-Trifluoroethane ND

858 165 ugSample 112919 1048 120619 2143 11122-Tetrachloroethane ND

172 0961 ugSample 112919 1048 120619 2143 1112-Trichloro-122-trifluoroethane ND

172 172 ugSample 112919 1048 120619 2143 1112-trichloro-1-fluoroethane ND

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12232019Page 18 of 89469

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-3Client Sample ID Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

112-Trichloroethane ND 858 0892 ugSample 112919 1048 120619 2143 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

172 858 ugSample 112919 1048 120619 2143 111-Dichloro-1-fluoroethane ND

172 172 ugSample 112919 1048 120619 2143 111-dichloro-22-difluoroethane ND

172 172 ugSample 112919 1048 120619 2143 111-dichloro-22-difluoroethene ND

858 103 ugSample 112919 1048 120619 2143 111-Dichloroethane ND

858 127 ugSample 112919 1048 120619 2143 111-Dichloroethene ND

858 0926 ugSample 112919 1048 120619 2143 111-Dichloropropene ND

172 172 ugSample 112919 1048 120619 2143 111-Difluoroethene ND

172 172 ugSample 112919 1048 120619 2143 1122-trichloro-11-difluoroethane ND

858 274 ugSample 112919 1048 120619 2143 1123-Trichlorobenzene ND

858 213 ugSample 112919 1048 120619 2143 1123-Trichloropropane ND

858 288 ugSample 112919 1048 120619 2143 1124-Trichlorobenzene ND

858 178 ugSample 112919 1048 120619 2143 1124-Trimethylbenzene ND

172 302 ugSample 112919 1048 120619 2143 112-Dibromo-3-Chloropropane ND

858 113 ugSample 112919 1048 120619 2143 112-Dibromoethane (EDB) ND

172 172 ugSample 112919 1048 120619 2143 112-dichloro-11-difluoroethane ND

858 151 ugSample 112919 1048 120619 2143 112-Dichlorobenzene ND

858 144 ugSample 112919 1048 120619 2143 112-Dichloroethane ND

858 0858 ugSample 112919 1048 120619 2143 112-Dichloropropane ND

858 178 ugSample 112919 1048 120619 2143 1135-Trimethylbenzene ND

858 148 ugSample 112919 1048 120619 2143 113-Dichlorobenzene ND

858 0961 ugSample 112919 1048 120619 2143 113-Dichloropropane ND

858 172 ugSample 112919 1048 120619 2143 114-Dichlorobenzene ND

172 175 ugSample 112919 1048 120619 2143 11-Chloro-11-difluoroethane ND

172 172 ugSample 112919 1048 120619 2143 122-dichloro-11-difluoroethylmethyl

ether

ND

858 250 ugSample 112919 1048 120619 2143 122-Dichloropropane ND

343 549 ugSample 112919 1048 120619 2143 12-Butanone (MEK) ND

172 254 ugSample 112919 1048 120619 2143 12-chloro-111444-hexafluoro-2-but

ene

ND

172 172 ugSample 112919 1048 120619 2143 12-Chloro-111-Trifluoroethane ND

858 161 ugSample 112919 1048 120619 2143 12-Chlorotoluene ND

343 789 ugSample 112919 1048 120619 2143 12-Hexanone ND

749 749 ugSample 112919 1048 120619 2143 12-MTP as HFPO 604

858 178 ugSample 112919 1048 120619 2143 14-Chlorotoluene ND

858 230 ugSample 112919 1048 120619 2143 14-Isopropyltoluene ND

343 549 ugSample 112919 1048 120619 2143 14-Methyl-2-pentanone (MIBK) ND

343 202 ugSample 112919 1048 120619 2143 1Acetone ND

858 165 ugSample 112919 1048 120619 2143 1Benzene ND

858 120 ugSample 112919 1048 120619 2143 1Bromobenzene ND

858 192 ugSample 112919 1048 120619 2143 1Bromochloromethane ND

858 148 ugSample 112919 1048 120619 2143 1Bromodichloromethane ND

858 261 ugSample 112919 1048 120619 2143 1Bromoform ND

172 995 ugSample 112919 1048 120619 2143 1Bromomethane ND

858 213 ugSample 112919 1048 120619 2143 1Carbon disulfide ND

858 113 ugSample 112919 1048 120619 2143 1Carbon tetrachloride ND

251 251 ugSample 112919 1048 120619 2143 1Carbonyl Difluoride ND

858 124 ugSample 112919 1048 120619 2143 1Chlorobenzene ND

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ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-3Client Sample ID Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Chlorodibromomethane ND 858 185 ugSample 112919 1048 120619 2143 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

172 377 ugSample 112919 1048 120619 2143 1Chloroethane ND

858 0995 ugSample 112919 1048 120619 2143 1Chloroform ND

172 714 ugSample 112919 1048 120619 2143 1Chloromethane ND

858 0686 ugSample 112919 1048 120619 2143 1cis-12-Dichloroethene ND

858 148 ugSample 112919 1048 120619 2143 1cis-13-Dichloropropene ND

858 0823 ugSample 112919 1048 120619 2143 1Dibromomethane ND

172 302 ugSample 112919 1048 120619 2143 1Dichlorodifluoromethane ND

858 141 ugSample 112919 1048 120619 2143 1Ethylbenzene ND

858 858 ugSample 112919 1048 120619 2143 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

858 226 ugSample 112919 1048 120619 2143 1Hexachlorobutadiene ND

823 823 ugSample 112919 1048 120619 2143 1HFPO dimer methyl ester as

HFPO-DA

ND

858 120 ugSample 112919 1048 120619 2143 1Isopropylbenzene ND

172 141 ugSample 112919 1048 120619 2143 1mp-Xylene ND

858 549 ugSample 112919 1048 120619 2143 1Methylene Chloride ND

858 412 ugSample 112919 1048 120619 2143 1Naphthalene ND

858 220 ugSample 112919 1048 120619 2143 1n-Butylbenzene ND

858 185 ugSample 112919 1048 120619 2143 1n-Propylbenzene ND

858 0892 ugSample 112919 1048 120619 2143 1o-Xylene ND

858 168 ugSample 112919 1048 120619 2143 1sec-Butylbenzene ND

858 185 ugSample 112919 1048 120619 2143 1Styrene ND

858 151 ugSample 112919 1048 120619 2143 1tert-Butylbenzene ND

858 113 ugSample 112919 1048 120619 2143 1Tetrachloroethene ND

858 158 ugSample 112919 1048 120619 2143 1Toluene ND

858 0892 ugSample 112919 1048 120619 2143 1trans-12-Dichloroethene ND

858 302 ugSample 112919 1048 120619 2143 1trans-13-Dichloropropene ND

858 0618 ugSample 112919 1048 120619 2143 1Trichloroethene ND

172 165 ugSample 112919 1048 120619 2143 1Trichlorofluoromethane ND

172 412 ugSample 112919 1048 120619 2143 1Vinyl chloride ND

Unknown 201 T J ugSample 113 112919 1048 120619 2143 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2143112919 1048T JUnknown 996 ugSample 118

1120619 2143112919 1048T J NCyclohexane 110-82-7248 ugSample 442

1120619 2143112919 1048T J N1-Dodecene 112-41-4105 ugSample 1207

1120619 2143112919 1048T J NCyclohexane hexyl- 4292-75-5129 ugSample 1269

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1048 120619 2143 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 112919 1048 120619 2143 157 - 152

Dibromofluoromethane (Surr) 102 112919 1048 120619 2143 162 - 134

Toluene-d8 (Surr) 97 112919 1048 120619 2143 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 9710 1830 915 ugSample 112919 1048 121119 2203 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-3Client Sample ID Y-2966 R1 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 9056 - Anions Ion Chromatography (Continued)RL MDL

Hydrogen Fluoride ND 755 343 ugSample 112919 1048 121719 2029 20

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-4Client Sample ID Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 264 349 ugSample 112919 1048 120619 2208 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

529 529 ugSample 112919 1048 120619 2208 111133-Pentafluorobutane ND

264 381 ugSample 112919 1048 120619 2208 1111-Trichloroethane ND

529 105 ugSample 112919 1048 120619 2208 1111-Trifluoro-22-dichloroethane ND

529 529 ugSample 112919 1048 120619 2208 1111-Trifluoroethane ND

264 508 ugSample 112919 1048 120619 2208 11122-Tetrachloroethane ND

529 296 ugSample 112919 1048 120619 2208 1112-Trichloro-122-trifluoroethane ND

529 529 ugSample 112919 1048 120619 2208 1112-trichloro-1-fluoroethane ND

264 275 ugSample 112919 1048 120619 2208 1112-Trichloroethane ND

529 264 ugSample 112919 1048 120619 2208 111-Dichloro-1-fluoroethane ND

529 529 ugSample 112919 1048 120619 2208 111-dichloro-22-difluoroethane ND

529 529 ugSample 112919 1048 120619 2208 111-dichloro-22-difluoroethene ND

264 317 ugSample 112919 1048 120619 2208 111-Dichloroethane ND

264 391 ugSample 112919 1048 120619 2208 111-Dichloroethene ND

264 286 ugSample 112919 1048 120619 2208 111-Dichloropropene ND

529 529 ugSample 112919 1048 120619 2208 111-Difluoroethene ND

529 529 ugSample 112919 1048 120619 2208 1122-trichloro-11-difluoroethane ND

264 846 ugSample 112919 1048 120619 2208 1123-Trichlorobenzene ND

264 656 ugSample 112919 1048 120619 2208 1123-Trichloropropane ND

264 889 ugSample 112919 1048 120619 2208 1124-Trichlorobenzene ND

264 550 ugSample 112919 1048 120619 2208 1124-Trimethylbenzene ND

529 931 ugSample 112919 1048 120619 2208 112-Dibromo-3-Chloropropane ND

264 349 ugSample 112919 1048 120619 2208 112-Dibromoethane (EDB) ND

529 529 ugSample 112919 1048 120619 2208 112-dichloro-11-difluoroethane ND

264 465 ugSample 112919 1048 120619 2208 112-Dichlorobenzene ND

264 444 ugSample 112919 1048 120619 2208 112-Dichloroethane ND

264 264 ugSample 112919 1048 120619 2208 112-Dichloropropane ND

264 550 ugSample 112919 1048 120619 2208 1135-Trimethylbenzene ND

264 455 ugSample 112919 1048 120619 2208 113-Dichlorobenzene ND

264 296 ugSample 112919 1048 120619 2208 113-Dichloropropane ND

264 529 ugSample 112919 1048 120619 2208 114-Dichlorobenzene ND

529 539 ugSample 112919 1048 120619 2208 11-Chloro-11-difluoroethane ND

529 529 ugSample 112919 1048 120619 2208 122-dichloro-11-difluoroethylmethyl

ether

ND

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-4Client Sample ID Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

22-Dichloropropane ND 264 772 ugSample 112919 1048 120619 2208 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

106 169 ugSample 112919 1048 120619 2208 12-Butanone (MEK) ND

529 783 ugSample 112919 1048 120619 2208 12-chloro-111444-hexafluoro-2-but

ene

ND

529 529 ugSample 112919 1048 120619 2208 12-Chloro-111-Trifluoroethane ND

264 497 ugSample 112919 1048 120619 2208 12-Chlorotoluene ND

106 243 ugSample 112919 1048 120619 2208 12-Hexanone ND

231 231 ugSample 112919 1048 120619 2208 12-MTP as HFPO 636

264 550 ugSample 112919 1048 120619 2208 14-Chlorotoluene ND

264 709 ugSample 112919 1048 120619 2208 14-Isopropyltoluene ND

106 169 ugSample 112919 1048 120619 2208 14-Methyl-2-pentanone (MIBK) ND

106 624 ugSample 112919 1048 120619 2208 1Acetone ND

264 508 ugSample 112919 1048 120619 2208 1Benzene ND

264 370 ugSample 112919 1048 120619 2208 1Bromobenzene ND

264 592 ugSample 112919 1048 120619 2208 1Bromochloromethane ND

264 455 ugSample 112919 1048 120619 2208 1Bromodichloromethane ND

264 804 ugSample 112919 1048 120619 2208 1Bromoform ND

529 307 ugSample 112919 1048 120619 2208 1Bromomethane ND

264 656 ugSample 112919 1048 120619 2208 1Carbon disulfide ND

264 349 ugSample 112919 1048 120619 2208 1Carbon tetrachloride ND

777 777 ugSample 112919 1048 120619 2208 1Carbonyl Difluoride ND

264 381 ugSample 112919 1048 120619 2208 1Chlorobenzene ND

264 571 ugSample 112919 1048 120619 2208 1Chlorodibromomethane ND

529 116 ugSample 112919 1048 120619 2208 1Chloroethane ND

264 307 ugSample 112919 1048 120619 2208 1Chloroform ND

529 220 ugSample 112919 1048 120619 2208 1Chloromethane ND

264 212 ugSample 112919 1048 120619 2208 1cis-12-Dichloroethene ND

264 455 ugSample 112919 1048 120619 2208 1cis-13-Dichloropropene ND

264 254 ugSample 112919 1048 120619 2208 1Dibromomethane ND

529 931 ugSample 112919 1048 120619 2208 1Dichlorodifluoromethane ND

264 434 ugSample 112919 1048 120619 2208 1Ethylbenzene ND

264 264 ugSample 112919 1048 120619 2208 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

264 698 ugSample 112919 1048 120619 2208 1Hexachlorobutadiene ND

253 253 ugSample 112919 1048 120619 2208 1HFPO dimer methyl ester as

HFPO-DA

ND

264 370 ugSample 112919 1048 120619 2208 1Isopropylbenzene ND

529 434 ugSample 112919 1048 120619 2208 1mp-Xylene ND

264 169 ugSample 112919 1048 120619 2208 1Methylene Chloride ND

264 127 ugSample 112919 1048 120619 2208 1Naphthalene ND

264 677 ugSample 112919 1048 120619 2208 1n-Butylbenzene ND

264 571 ugSample 112919 1048 120619 2208 1n-Propylbenzene ND

264 275 ugSample 112919 1048 120619 2208 1o-Xylene ND

264 518 ugSample 112919 1048 120619 2208 1sec-Butylbenzene ND

264 571 ugSample 112919 1048 120619 2208 1Styrene ND

264 465 ugSample 112919 1048 120619 2208 1tert-Butylbenzene ND

264 349 ugSample 112919 1048 120619 2208 1Tetrachloroethene ND

264 487 ugSample 112919 1048 120619 2208 1Toluene ND

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12232019Page 22 of 89473

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-4Client Sample ID Y-2967 R1 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

trans-12-Dichloroethene ND 264 275 ugSample 112919 1048 120619 2208 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

264 931 ugSample 112919 1048 120619 2208 1trans-13-Dichloropropene ND

264 190 ugSample 112919 1048 120619 2208 1Trichloroethene ND

529 508 ugSample 112919 1048 120619 2208 1Trichlorofluoromethane ND

529 127 ugSample 112919 1048 120619 2208 1Vinyl chloride ND

Unknown 365 T J ugSample 113 112919 1048 120619 2208 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2208112919 1048T JUnknown 452 ugSample 118

1120619 2208112919 1048T J NCyclohexane 110-82-7419 ugSample 442

12-Dichloroethane-d4 (Surr) 120 70 - 160 112919 1048 120619 2208 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 110 112919 1048 120619 2208 157 - 152

Dibromofluoromethane (Surr) 104 112919 1048 120619 2208 162 - 134

Toluene-d8 (Surr) 96 112919 1048 120619 2208 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 22000 5640 2820 ugSample 112919 1048 121219 1510 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2330 1060 ugSample 112919 1048 121719 2051 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-5Client Sample ID Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 241 318 ugSample 112919 1048 120619 2232 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

482 482 ugSample 112919 1048 120619 2232 111133-Pentafluorobutane ND

241 347 ugSample 112919 1048 120619 2232 1111-Trichloroethane ND

482 954 ugSample 112919 1048 120619 2232 1111-Trifluoro-22-dichloroethane ND

482 482 ugSample 112919 1048 120619 2232 1111-Trifluoroethane ND

241 462 ugSample 112919 1048 120619 2232 11122-Tetrachloroethane ND

482 270 ugSample 112919 1048 120619 2232 1112-Trichloro-122-trifluoroethane ND

482 482 ugSample 112919 1048 120619 2232 1112-trichloro-1-fluoroethane ND

241 250 ugSample 112919 1048 120619 2232 1112-Trichloroethane ND

482 241 ugSample 112919 1048 120619 2232 111-Dichloro-1-fluoroethane ND

482 482 ugSample 112919 1048 120619 2232 111-dichloro-22-difluoroethane ND

482 482 ugSample 112919 1048 120619 2232 111-dichloro-22-difluoroethene ND

241 289 ugSample 112919 1048 120619 2232 111-Dichloroethane ND

241 356 ugSample 112919 1048 120619 2232 111-Dichloroethene ND

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ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-5Client Sample ID Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

11-Dichloropropene ND 241 260 ugSample 112919 1048 120619 2232 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

482 482 ugSample 112919 1048 120619 2232 111-Difluoroethene ND

482 482 ugSample 112919 1048 120619 2232 1122-trichloro-11-difluoroethane ND

241 771 ugSample 112919 1048 120619 2232 1123-Trichlorobenzene ND

241 597 ugSample 112919 1048 120619 2232 1123-Trichloropropane ND

241 809 ugSample 112919 1048 120619 2232 1124-Trichlorobenzene ND

241 501 ugSample 112919 1048 120619 2232 1124-Trimethylbenzene ND

482 848 ugSample 112919 1048 120619 2232 112-Dibromo-3-Chloropropane ND

241 318 ugSample 112919 1048 120619 2232 112-Dibromoethane (EDB) ND

482 482 ugSample 112919 1048 120619 2232 112-dichloro-11-difluoroethane ND

241 424 ugSample 112919 1048 120619 2232 112-Dichlorobenzene ND

241 405 ugSample 112919 1048 120619 2232 112-Dichloroethane ND

241 241 ugSample 112919 1048 120619 2232 112-Dichloropropane ND

241 501 ugSample 112919 1048 120619 2232 1135-Trimethylbenzene ND

241 414 ugSample 112919 1048 120619 2232 113-Dichlorobenzene ND

241 270 ugSample 112919 1048 120619 2232 113-Dichloropropane ND

241 482 ugSample 112919 1048 120619 2232 114-Dichlorobenzene ND

482 491 ugSample 112919 1048 120619 2232 11-Chloro-11-difluoroethane ND

482 482 ugSample 112919 1048 120619 2232 122-dichloro-11-difluoroethylmethyl

ether

ND

241 703 ugSample 112919 1048 120619 2232 122-Dichloropropane ND

963 154 ugSample 112919 1048 120619 2232 12-Butanone (MEK) ND

482 713 ugSample 112919 1048 120619 2232 12-chloro-111444-hexafluoro-2-but

ene

ND

482 482 ugSample 112919 1048 120619 2232 12-Chloro-111-Trifluoroethane ND

241 453 ugSample 112919 1048 120619 2232 12-Chlorotoluene ND

963 222 ugSample 112919 1048 120619 2232 12-Hexanone ND

210 210 ugSample 112919 1048 120619 2232 12-MTP as HFPO 490

241 501 ugSample 112919 1048 120619 2232 14-Chlorotoluene ND

241 645 ugSample 112919 1048 120619 2232 14-Isopropyltoluene ND

963 154 ugSample 112919 1048 120619 2232 14-Methyl-2-pentanone (MIBK) ND

963 568 ugSample 112919 1048 120619 2232 1Acetone ND

241 462 ugSample 112919 1048 120619 2232 1Benzene ND

241 337 ugSample 112919 1048 120619 2232 1Bromobenzene ND

241 540 ugSample 112919 1048 120619 2232 1Bromochloromethane ND

241 414 ugSample 112919 1048 120619 2232 1Bromodichloromethane ND

241 732 ugSample 112919 1048 120619 2232 1Bromoform ND

482 279 ugSample 112919 1048 120619 2232 1Bromomethane ND

241 597 ugSample 112919 1048 120619 2232 1Carbon disulfide ND

241 318 ugSample 112919 1048 120619 2232 1Carbon tetrachloride ND

706 706 ugSample 112919 1048 120619 2232 1Carbonyl Difluoride ND

241 347 ugSample 112919 1048 120619 2232 1Chlorobenzene ND

241 520 ugSample 112919 1048 120619 2232 1Chlorodibromomethane ND

482 106 ugSample 112919 1048 120619 2232 1Chloroethane ND

241 279 ugSample 112919 1048 120619 2232 1Chloroform ND

482 200 ugSample 112919 1048 120619 2232 1Chloromethane ND

241 193 ugSample 112919 1048 120619 2232 1cis-12-Dichloroethene ND

241 414 ugSample 112919 1048 120619 2232 1cis-13-Dichloropropene ND

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-5Client Sample ID Y-2968 R1 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Dibromomethane ND 241 231 ugSample 112919 1048 120619 2232 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

482 848 ugSample 112919 1048 120619 2232 1Dichlorodifluoromethane ND

241 395 ugSample 112919 1048 120619 2232 1Ethylbenzene ND

241 241 ugSample 112919 1048 120619 2232 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

241 636 ugSample 112919 1048 120619 2232 1Hexachlorobutadiene ND

231 231 ugSample 112919 1048 120619 2232 1HFPO dimer methyl ester as

HFPO-DA

ND

241 337 ugSample 112919 1048 120619 2232 1Isopropylbenzene ND

482 395 ugSample 112919 1048 120619 2232 1mp-Xylene ND

241 154 ugSample 112919 1048 120619 2232 1Methylene Chloride ND

241 116 ugSample 112919 1048 120619 2232 1Naphthalene ND

241 617 ugSample 112919 1048 120619 2232 1n-Butylbenzene ND

241 520 ugSample 112919 1048 120619 2232 1n-Propylbenzene ND

241 250 ugSample 112919 1048 120619 2232 1o-Xylene ND

241 472 ugSample 112919 1048 120619 2232 1sec-Butylbenzene ND

241 520 ugSample 112919 1048 120619 2232 1Styrene ND

241 424 ugSample 112919 1048 120619 2232 1tert-Butylbenzene ND

241 318 ugSample 112919 1048 120619 2232 1Tetrachloroethene ND

241 443 ugSample 112919 1048 120619 2232 1Toluene ND

241 250 ugSample 112919 1048 120619 2232 1trans-12-Dichloroethene ND

241 848 ugSample 112919 1048 120619 2232 1trans-13-Dichloropropene ND

241 173 ugSample 112919 1048 120619 2232 1Trichloroethene ND

482 462 ugSample 112919 1048 120619 2232 1Trichlorofluoromethane ND

482 116 ugSample 112919 1048 120619 2232 1Vinyl chloride ND

Unknown 223 T J ugSample 113 112919 1048 120619 2232 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2232112919 1048T J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-8104 ugSample 118

1120619 2232112919 1048T J NCyclohexane 110-82-7410 ugSample 442

1120619 2232112919 1048T JUnknown 309 ugSample 1317

12-Dichloroethane-d4 (Surr) 121 70 - 160 112919 1048 120619 2232 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1048 120619 2232 157 - 152

Dibromofluoromethane (Surr) 106 112919 1048 120619 2232 162 - 134

Toluene-d8 (Surr) 95 112919 1048 120619 2232 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 4360 J 5140 2570 ugSample 112919 1048 121119 2330 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2120 963 ugSample 112919 1048 121719 2114 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-6Client Sample ID Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 313 413 ugSample 112919 1048 120619 2257 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

627 627 ugSample 112919 1048 120619 2257 111133-Pentafluorobutane ND

313 451 ugSample 112919 1048 120619 2257 1111-Trichloroethane ND

627 124 ugSample 112919 1048 120619 2257 1111-Trifluoro-22-dichloroethane ND

627 627 ugSample 112919 1048 120619 2257 1111-Trifluoroethane ND

313 601 ugSample 112919 1048 120619 2257 11122-Tetrachloroethane ND

627 351 ugSample 112919 1048 120619 2257 1112-Trichloro-122-trifluoroethane ND

627 627 ugSample 112919 1048 120619 2257 1112-trichloro-1-fluoroethane ND

313 326 ugSample 112919 1048 120619 2257 1112-Trichloroethane ND

627 313 ugSample 112919 1048 120619 2257 111-Dichloro-1-fluoroethane ND

627 627 ugSample 112919 1048 120619 2257 111-dichloro-22-difluoroethane ND

627 627 ugSample 112919 1048 120619 2257 111-dichloro-22-difluoroethene ND

313 376 ugSample 112919 1048 120619 2257 111-Dichloroethane ND

313 464 ugSample 112919 1048 120619 2257 111-Dichloroethene ND

313 338 ugSample 112919 1048 120619 2257 111-Dichloropropene ND

627 627 ugSample 112919 1048 120619 2257 111-Difluoroethene ND

627 627 ugSample 112919 1048 120619 2257 1122-trichloro-11-difluoroethane ND

313 100 ugSample 112919 1048 120619 2257 1123-Trichlorobenzene ND

313 777 ugSample 112919 1048 120619 2257 1123-Trichloropropane ND

313 105 ugSample 112919 1048 120619 2257 1124-Trichlorobenzene ND

313 652 ugSample 112919 1048 120619 2257 1124-Trimethylbenzene ND

627 110 ugSample 112919 1048 120619 2257 112-Dibromo-3-Chloropropane ND

313 413 ugSample 112919 1048 120619 2257 112-Dibromoethane (EDB) ND

627 627 ugSample 112919 1048 120619 2257 112-dichloro-11-difluoroethane ND

313 551 ugSample 112919 1048 120619 2257 112-Dichlorobenzene ND

313 526 ugSample 112919 1048 120619 2257 112-Dichloroethane ND

313 313 ugSample 112919 1048 120619 2257 112-Dichloropropane ND

313 652 ugSample 112919 1048 120619 2257 1135-Trimethylbenzene ND

313 539 ugSample 112919 1048 120619 2257 113-Dichlorobenzene ND

313 351 ugSample 112919 1048 120619 2257 113-Dichloropropane ND

313 627 ugSample 112919 1048 120619 2257 114-Dichlorobenzene ND

627 639 ugSample 112919 1048 120619 2257 11-Chloro-11-difluoroethane ND

627 627 ugSample 112919 1048 120619 2257 122-dichloro-11-difluoroethylmethyl

ether

ND

313 915 ugSample 112919 1048 120619 2257 122-Dichloropropane ND

125 200 ugSample 112919 1048 120619 2257 12-Butanone (MEK) ND

627 927 ugSample 112919 1048 120619 2257 12-chloro-111444-hexafluoro-2-but

ene

ND

627 627 ugSample 112919 1048 120619 2257 12-Chloro-111-Trifluoroethane ND

313 589 ugSample 112919 1048 120619 2257 12-Chlorotoluene ND

125 288 ugSample 112919 1048 120619 2257 12-Hexanone ND

273 273 ugSample 112919 1048 120619 2257 12-MTP as HFPO 672

313 652 ugSample 112919 1048 120619 2257 14-Chlorotoluene ND

313 840 ugSample 112919 1048 120619 2257 14-Isopropyltoluene ND

125 200 ugSample 112919 1048 120619 2257 14-Methyl-2-pentanone (MIBK) ND

125 739 ugSample 112919 1048 120619 2257 1Acetone ND

313 601 ugSample 112919 1048 120619 2257 1Benzene ND

313 439 ugSample 112919 1048 120619 2257 1Bromobenzene ND

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ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-6Client Sample ID Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromochloromethane ND 313 702 ugSample 112919 1048 120619 2257 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

313 539 ugSample 112919 1048 120619 2257 1Bromodichloromethane ND

313 952 ugSample 112919 1048 120619 2257 1Bromoform ND

627 363 ugSample 112919 1048 120619 2257 1Bromomethane ND

313 777 ugSample 112919 1048 120619 2257 1Carbon disulfide ND

313 413 ugSample 112919 1048 120619 2257 1Carbon tetrachloride ND

916 916 ugSample 112919 1048 120619 2257 1Carbonyl Difluoride ND

313 451 ugSample 112919 1048 120619 2257 1Chlorobenzene ND

313 677 ugSample 112919 1048 120619 2257 1Chlorodibromomethane ND

627 138 ugSample 112919 1048 120619 2257 1Chloroethane ND

313 363 ugSample 112919 1048 120619 2257 1Chloroform ND

627 261 ugSample 112919 1048 120619 2257 1Chloromethane ND

313 251 ugSample 112919 1048 120619 2257 1cis-12-Dichloroethene ND

313 539 ugSample 112919 1048 120619 2257 1cis-13-Dichloropropene ND

313 301 ugSample 112919 1048 120619 2257 1Dibromomethane ND

627 110 ugSample 112919 1048 120619 2257 1Dichlorodifluoromethane ND

313 514 ugSample 112919 1048 120619 2257 1Ethylbenzene ND

313 313 ugSample 112919 1048 120619 2257 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

313 827 ugSample 112919 1048 120619 2257 1Hexachlorobutadiene ND

300 300 ugSample 112919 1048 120619 2257 1HFPO dimer methyl ester as

HFPO-DA

ND

313 439 ugSample 112919 1048 120619 2257 1Isopropylbenzene ND

627 514 ugSample 112919 1048 120619 2257 1mp-Xylene ND

313 200 ugSample 112919 1048 120619 2257 1Methylene Chloride ND

313 150 ugSample 112919 1048 120619 2257 1Naphthalene ND

313 802 ugSample 112919 1048 120619 2257 1n-Butylbenzene ND

313 677 ugSample 112919 1048 120619 2257 1n-Propylbenzene ND

313 326 ugSample 112919 1048 120619 2257 1o-Xylene ND

313 614 ugSample 112919 1048 120619 2257 1sec-Butylbenzene ND

313 677 ugSample 112919 1048 120619 2257 1Styrene ND

313 551 ugSample 112919 1048 120619 2257 1tert-Butylbenzene ND

313 413 ugSample 112919 1048 120619 2257 1Tetrachloroethene ND

313 576 ugSample 112919 1048 120619 2257 1Toluene ND

313 326 ugSample 112919 1048 120619 2257 1trans-12-Dichloroethene ND

313 110 ugSample 112919 1048 120619 2257 1trans-13-Dichloropropene ND

313 226 ugSample 112919 1048 120619 2257 1Trichloroethene ND

627 601 ugSample 112919 1048 120619 2257 1Trichlorofluoromethane ND

627 150 ugSample 112919 1048 120619 2257 1Vinyl chloride ND

Unknown 273 T J ugSample 113 112919 1048 120619 2257 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2257112919 1048T J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-8160 ugSample 118

12-Dichloroethane-d4 (Surr) 118 70 - 160 112919 1048 120619 2257 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 108 112919 1048 120619 2257 157 - 152

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-6Client Sample ID Y-2969 R1 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)

Dibromofluoromethane (Surr) 105 62 - 134 112919 1048 120619 2257 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Toluene-d8 (Surr) 97 112919 1048 120619 2257 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 3970 J 6680 3340 ugSample 112919 1048 121119 2350 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2760 1250 ugSample 112919 1048 121719 2137 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-7Client Sample ID Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 302 399 ugSample 112919 1048 120619 2321 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

604 604 ugSample 112919 1048 120619 2321 111133-Pentafluorobutane ND

302 435 ugSample 112919 1048 120619 2321 1111-Trichloroethane ND

604 120 ugSample 112919 1048 120619 2321 1111-Trifluoro-22-dichloroethane ND

604 604 ugSample 112919 1048 120619 2321 1111-Trifluoroethane ND

302 580 ugSample 112919 1048 120619 2321 11122-Tetrachloroethane ND

604 338 ugSample 112919 1048 120619 2321 1112-Trichloro-122-trifluoroethane ND

604 604 ugSample 112919 1048 120619 2321 1112-trichloro-1-fluoroethane ND

302 314 ugSample 112919 1048 120619 2321 1112-Trichloroethane ND

604 302 ugSample 112919 1048 120619 2321 111-Dichloro-1-fluoroethane ND

604 604 ugSample 112919 1048 120619 2321 111-dichloro-22-difluoroethane ND

604 604 ugSample 112919 1048 120619 2321 111-dichloro-22-difluoroethene ND

302 362 ugSample 112919 1048 120619 2321 111-Dichloroethane ND

302 447 ugSample 112919 1048 120619 2321 111-Dichloroethene ND

302 326 ugSample 112919 1048 120619 2321 111-Dichloropropene ND

604 604 ugSample 112919 1048 120619 2321 111-Difluoroethene ND

604 604 ugSample 112919 1048 120619 2321 1122-trichloro-11-difluoroethane ND

302 967 ugSample 112919 1048 120619 2321 1123-Trichlorobenzene ND

302 749 ugSample 112919 1048 120619 2321 1123-Trichloropropane ND

302 101 ugSample 112919 1048 120619 2321 1124-Trichlorobenzene ND

302 628 ugSample 112919 1048 120619 2321 1124-Trimethylbenzene ND

604 106 ugSample 112919 1048 120619 2321 112-Dibromo-3-Chloropropane ND

302 399 ugSample 112919 1048 120619 2321 112-Dibromoethane (EDB) ND

604 604 ugSample 112919 1048 120619 2321 112-dichloro-11-difluoroethane ND

302 532 ugSample 112919 1048 120619 2321 112-Dichlorobenzene ND

302 507 ugSample 112919 1048 120619 2321 112-Dichloroethane ND

302 302 ugSample 112919 1048 120619 2321 112-Dichloropropane ND

Eurofins TestAmerica Knoxville

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-7Client Sample ID Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

135-Trimethylbenzene ND 302 628 ugSample 112919 1048 120619 2321 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

302 520 ugSample 112919 1048 120619 2321 113-Dichlorobenzene ND

302 338 ugSample 112919 1048 120619 2321 113-Dichloropropane ND

302 604 ugSample 112919 1048 120619 2321 114-Dichlorobenzene ND

604 616 ugSample 112919 1048 120619 2321 11-Chloro-11-difluoroethane ND

604 604 ugSample 112919 1048 120619 2321 122-dichloro-11-difluoroethylmethyl

ether

ND

302 882 ugSample 112919 1048 120619 2321 122-Dichloropropane ND

121 193 ugSample 112919 1048 120619 2321 12-Butanone (MEK) ND

604 894 ugSample 112919 1048 120619 2321 12-chloro-111444-hexafluoro-2-but

ene

ND

604 604 ugSample 112919 1048 120619 2321 12-Chloro-111-Trifluoroethane ND

302 568 ugSample 112919 1048 120619 2321 12-Chlorotoluene ND

121 278 ugSample 112919 1048 120619 2321 12-Hexanone ND

264 264 ugSample 112919 1048 120619 2321 12-MTP as HFPO 467

302 628 ugSample 112919 1048 120619 2321 14-Chlorotoluene ND

302 809 ugSample 112919 1048 120619 2321 14-Isopropyltoluene ND

121 193 ugSample 112919 1048 120619 2321 14-Methyl-2-pentanone (MIBK) ND

121 713 ugSample 112919 1048 120619 2321 1Acetone ND

302 580 ugSample 112919 1048 120619 2321 1Benzene ND

302 423 ugSample 112919 1048 120619 2321 1Bromobenzene ND

302 677 ugSample 112919 1048 120619 2321 1Bromochloromethane ND

302 520 ugSample 112919 1048 120619 2321 1Bromodichloromethane ND

302 918 ugSample 112919 1048 120619 2321 1Bromoform ND

604 350 ugSample 112919 1048 120619 2321 1Bromomethane ND

302 749 ugSample 112919 1048 120619 2321 1Carbon disulfide ND

302 399 ugSample 112919 1048 120619 2321 1Carbon tetrachloride ND

887 887 ugSample 112919 1048 120619 2321 1Carbonyl Difluoride ND

302 435 ugSample 112919 1048 120619 2321 1Chlorobenzene ND

302 652 ugSample 112919 1048 120619 2321 1Chlorodibromomethane ND

604 133 ugSample 112919 1048 120619 2321 1Chloroethane ND

302 350 ugSample 112919 1048 120619 2321 1Chloroform ND

604 251 ugSample 112919 1048 120619 2321 1Chloromethane ND

302 242 ugSample 112919 1048 120619 2321 1cis-12-Dichloroethene ND

302 520 ugSample 112919 1048 120619 2321 1cis-13-Dichloropropene ND

302 290 ugSample 112919 1048 120619 2321 1Dibromomethane ND

604 106 ugSample 112919 1048 120619 2321 1Dichlorodifluoromethane ND

302 495 ugSample 112919 1048 120619 2321 1Ethylbenzene ND

302 302 ugSample 112919 1048 120619 2321 1Heptafluoropropyl 1222-tetrafluoroethyl ether

550

302 797 ugSample 112919 1048 120619 2321 1Hexachlorobutadiene ND

290 290 ugSample 112919 1048 120619 2321 1HFPO dimer methyl ester as

HFPO-DA

ND

302 423 ugSample 112919 1048 120619 2321 1Isopropylbenzene ND

604 495 ugSample 112919 1048 120619 2321 1mp-Xylene ND

302 193 ugSample 112919 1048 120619 2321 1Methylene Chloride 116

302 145 ugSample 112919 1048 120619 2321 1Naphthalene ND

302 773 ugSample 112919 1048 120619 2321 1n-Butylbenzene ND

Eurofins TestAmerica Knoxville

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-7Client Sample ID Y-2970 R2 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

n-Propylbenzene ND 302 652 ugSample 112919 1048 120619 2321 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

302 314 ugSample 112919 1048 120619 2321 1o-Xylene ND

302 592 ugSample 112919 1048 120619 2321 1sec-Butylbenzene ND

302 652 ugSample 112919 1048 120619 2321 1Styrene ND

302 532 ugSample 112919 1048 120619 2321 1tert-Butylbenzene ND

302 399 ugSample 112919 1048 120619 2321 1Tetrachloroethene ND

302 556 ugSample 112919 1048 120619 2321 1Toluene ND

302 314 ugSample 112919 1048 120619 2321 1trans-12-Dichloroethene ND

302 106 ugSample 112919 1048 120619 2321 1trans-13-Dichloropropene ND

302 217 ugSample 112919 1048 120619 2321 1Trichloroethene ND

604 580 ugSample 112919 1048 120619 2321 1Trichlorofluoromethane ND

604 145 ugSample 112919 1048 120619 2321 1Vinyl chloride ND

Unknown 275 T J ugSample 113 112919 1048 120619 2321 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2321112919 1048T JUnknown 2960 ugSample 118

1120619 2321112919 1048T JUnknown 572 ugSample 122

1120619 2321112919 1048T JUnknown 229 ugSample 212

1120619 2321112919 1048T JUnknown 104 ugSample 250

1120619 2321112919 1048T J NCyclohexane 110-82-7363 ugSample 442

12-Dichloroethane-d4 (Surr) 118 70 - 160 112919 1048 120619 2321 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1048 120619 2321 157 - 152

Dibromofluoromethane (Surr) 105 112919 1048 120619 2321 162 - 134

Toluene-d8 (Surr) 96 112919 1048 120619 2321 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 6490 6440 3220 ugSample 112919 1048 121219 0011 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2660 1210 ugSample 112919 1048 121819 0946 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-8Client Sample ID Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 296 390 ugSample 112919 1048 120619 2346 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

591 591 ugSample 112919 1048 120619 2346 111133-Pentafluorobutane ND

296 426 ugSample 112919 1048 120619 2346 1111-Trichloroethane ND

591 117 ugSample 112919 1048 120619 2346 1111-Trifluoro-22-dichloroethane ND

Eurofins TestAmerica Knoxville

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-8Client Sample ID Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

111-Trifluoroethane ND 591 591 ugSample 112919 1048 120619 2346 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

296 567 ugSample 112919 1048 120619 2346 11122-Tetrachloroethane ND

591 331 ugSample 112919 1048 120619 2346 1112-Trichloro-122-trifluoroethane ND

591 591 ugSample 112919 1048 120619 2346 1112-trichloro-1-fluoroethane ND

296 307 ugSample 112919 1048 120619 2346 1112-Trichloroethane ND

591 296 ugSample 112919 1048 120619 2346 111-Dichloro-1-fluoroethane ND

591 591 ugSample 112919 1048 120619 2346 111-dichloro-22-difluoroethane ND

591 591 ugSample 112919 1048 120619 2346 111-dichloro-22-difluoroethene ND

296 355 ugSample 112919 1048 120619 2346 111-Dichloroethane ND

296 437 ugSample 112919 1048 120619 2346 111-Dichloroethene ND

296 319 ugSample 112919 1048 120619 2346 111-Dichloropropene ND

591 591 ugSample 112919 1048 120619 2346 111-Difluoroethene ND

591 591 ugSample 112919 1048 120619 2346 1122-trichloro-11-difluoroethane ND

296 946 ugSample 112919 1048 120619 2346 1123-Trichlorobenzene ND

296 733 ugSample 112919 1048 120619 2346 1123-Trichloropropane ND

296 993 ugSample 112919 1048 120619 2346 1124-Trichlorobenzene ND

296 615 ugSample 112919 1048 120619 2346 1124-Trimethylbenzene ND

591 104 ugSample 112919 1048 120619 2346 112-Dibromo-3-Chloropropane ND

296 390 ugSample 112919 1048 120619 2346 112-Dibromoethane (EDB) ND

591 591 ugSample 112919 1048 120619 2346 112-dichloro-11-difluoroethane ND

296 520 ugSample 112919 1048 120619 2346 112-Dichlorobenzene ND

296 496 ugSample 112919 1048 120619 2346 112-Dichloroethane ND

296 296 ugSample 112919 1048 120619 2346 112-Dichloropropane ND

296 615 ugSample 112919 1048 120619 2346 1135-Trimethylbenzene ND

296 508 ugSample 112919 1048 120619 2346 113-Dichlorobenzene ND

296 331 ugSample 112919 1048 120619 2346 113-Dichloropropane ND

296 591 ugSample 112919 1048 120619 2346 114-Dichlorobenzene ND

591 603 ugSample 112919 1048 120619 2346 11-Chloro-11-difluoroethane ND

591 591 ugSample 112919 1048 120619 2346 122-dichloro-11-difluoroethylmethyl

ether

ND

296 863 ugSample 112919 1048 120619 2346 122-Dichloropropane ND

118 189 ugSample 112919 1048 120619 2346 12-Butanone (MEK) ND

591 875 ugSample 112919 1048 120619 2346 12-chloro-111444-hexafluoro-2-but

ene

ND

591 591 ugSample 112919 1048 120619 2346 12-Chloro-111-Trifluoroethane ND

296 556 ugSample 112919 1048 120619 2346 12-Chlorotoluene ND

118 272 ugSample 112919 1048 120619 2346 12-Hexanone ND

259 259 ugSample 112919 1048 120619 2346 12-MTP as HFPO 610

296 615 ugSample 112919 1048 120619 2346 14-Chlorotoluene ND

296 792 ugSample 112919 1048 120619 2346 14-Isopropyltoluene ND

118 189 ugSample 112919 1048 120619 2346 14-Methyl-2-pentanone (MIBK) ND

118 697 ugSample 112919 1048 120619 2346 1Acetone ND

296 567 ugSample 112919 1048 120619 2346 1Benzene ND

296 414 ugSample 112919 1048 120619 2346 1Bromobenzene ND

296 662 ugSample 112919 1048 120619 2346 1Bromochloromethane ND

296 508 ugSample 112919 1048 120619 2346 1Bromodichloromethane ND

296 898 ugSample 112919 1048 120619 2346 1Bromoform ND

591 343 ugSample 112919 1048 120619 2346 1Bromomethane ND

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-8Client Sample ID Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Carbon disulfide ND 296 733 ugSample 112919 1048 120619 2346 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

296 390 ugSample 112919 1048 120619 2346 1Carbon tetrachloride ND

865 865 ugSample 112919 1048 120619 2346 1Carbonyl Difluoride ND

296 426 ugSample 112919 1048 120619 2346 1Chlorobenzene ND

296 638 ugSample 112919 1048 120619 2346 1Chlorodibromomethane ND

591 130 ugSample 112919 1048 120619 2346 1Chloroethane ND

296 343 ugSample 112919 1048 120619 2346 1Chloroform ND

591 246 ugSample 112919 1048 120619 2346 1Chloromethane ND

296 236 ugSample 112919 1048 120619 2346 1cis-12-Dichloroethene ND

296 508 ugSample 112919 1048 120619 2346 1cis-13-Dichloropropene ND

296 284 ugSample 112919 1048 120619 2346 1Dibromomethane ND

591 104 ugSample 112919 1048 120619 2346 1Dichlorodifluoromethane ND

296 485 ugSample 112919 1048 120619 2346 1Ethylbenzene ND

296 296 ugSample 112919 1048 120619 2346 1Heptafluoropropyl 1222-tetrafluoroethyl ether

193

296 780 ugSample 112919 1048 120619 2346 1Hexachlorobutadiene ND

284 284 ugSample 112919 1048 120619 2346 1HFPO dimer methyl ester as

HFPO-DA

ND

296 414 ugSample 112919 1048 120619 2346 1Isopropylbenzene ND

591 485 ugSample 112919 1048 120619 2346 1mp-Xylene ND

296 189 ugSample 112919 1048 120619 2346 1Methylene Chloride ND

296 142 ugSample 112919 1048 120619 2346 1Naphthalene ND

296 757 ugSample 112919 1048 120619 2346 1n-Butylbenzene ND

296 638 ugSample 112919 1048 120619 2346 1n-Propylbenzene ND

296 307 ugSample 112919 1048 120619 2346 1o-Xylene ND

296 579 ugSample 112919 1048 120619 2346 1sec-Butylbenzene ND

296 638 ugSample 112919 1048 120619 2346 1Styrene ND

296 520 ugSample 112919 1048 120619 2346 1tert-Butylbenzene ND

296 390 ugSample 112919 1048 120619 2346 1Tetrachloroethene ND

296 544 ugSample 112919 1048 120619 2346 1Toluene ND

296 307 ugSample 112919 1048 120619 2346 1trans-12-Dichloroethene ND

296 104 ugSample 112919 1048 120619 2346 1trans-13-Dichloropropene ND

296 213 ugSample 112919 1048 120619 2346 1Trichloroethene ND

591 567 ugSample 112919 1048 120619 2346 1Trichlorofluoromethane ND

591 142 ugSample 112919 1048 120619 2346 1Vinyl chloride ND

Unknown 341 T J ugSample 113 112919 1048 120619 2346 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120619 2346112919 1048T JUnknown 2160 ugSample 119

1120619 2346112919 1048T J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-8497 ugSample 122

1120619 2346112919 1048T J NCyclohexane 110-82-7397 ugSample 442

1120619 2346112919 1048T J NCyclotetrasiloxane octamethyl- 556-67-2316 ugSample 878

1120619 2346112919 1048T J NSalicylic acid 2TMS derivative 3789-85-3307 ugSample 1136

1120619 2346112919 1048T JUnknown 563 ugSample 1317

12-Dichloroethane-d4 (Surr) 115 70 - 160 112919 1048 120619 2346 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-8Client Sample ID Y-2971 R2 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)

4-Bromofluorobenzene (Surr) 110 57 - 152 112919 1048 120619 2346 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Dibromofluoromethane (Surr) 104 112919 1048 120619 2346 162 - 134

Toluene-d8 (Surr) 97 112919 1048 120619 2346 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 24300 6380 3190 ugSample 112919 1048 121319 1843 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2600 1180 ugSample 112919 1048 121819 1009 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-9Client Sample ID Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND H 308 406 ugSample 112919 1048 120719 0010 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

615 615 ugSample 112919 1048 120719 0010 111133-Pentafluorobutane ND H

308 443 ugSample 112919 1048 120719 0010 1111-Trichloroethane ND H

615 122 ugSample 112919 1048 120719 0010 1111-Trifluoro-22-dichloroethane ND H

615 615 ugSample 112919 1048 120719 0010 1111-Trifluoroethane ND H

308 591 ugSample 112919 1048 120719 0010 11122-Tetrachloroethane ND H

615 345 ugSample 112919 1048 120719 0010 1112-Trichloro-122-trifluoroethane ND H

615 615 ugSample 112919 1048 120719 0010 1112-trichloro-1-fluoroethane ND H

308 320 ugSample 112919 1048 120719 0010 1112-Trichloroethane ND H

615 308 ugSample 112919 1048 120719 0010 111-Dichloro-1-fluoroethane ND H

615 615 ugSample 112919 1048 120719 0010 111-dichloro-22-difluoroethane ND H

615 615 ugSample 112919 1048 120719 0010 111-dichloro-22-difluoroethene ND H

308 369 ugSample 112919 1048 120719 0010 111-Dichloroethane ND H

308 455 ugSample 112919 1048 120719 0010 111-Dichloroethene ND H

308 332 ugSample 112919 1048 120719 0010 111-Dichloropropene ND H

615 615 ugSample 112919 1048 120719 0010 111-Difluoroethene ND H

615 615 ugSample 112919 1048 120719 0010 1122-trichloro-11-difluoroethane ND H

308 985 ugSample 112919 1048 120719 0010 1123-Trichlorobenzene ND H

308 763 ugSample 112919 1048 120719 0010 1123-Trichloropropane ND H

308 103 ugSample 112919 1048 120719 0010 1124-Trichlorobenzene ND H

308 640 ugSample 112919 1048 120719 0010 1124-Trimethylbenzene ND H

615 108 ugSample 112919 1048 120719 0010 112-Dibromo-3-Chloropropane ND H

308 406 ugSample 112919 1048 120719 0010 112-Dibromoethane (EDB) ND H

615 615 ugSample 112919 1048 120719 0010 112-dichloro-11-difluoroethane ND H

308 542 ugSample 112919 1048 120719 0010 112-Dichlorobenzene ND H

308 517 ugSample 112919 1048 120719 0010 112-Dichloroethane ND H

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-9Client Sample ID Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

12-Dichloropropane ND H 308 308 ugSample 112919 1048 120719 0010 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

308 640 ugSample 112919 1048 120719 0010 1135-Trimethylbenzene ND H

308 529 ugSample 112919 1048 120719 0010 113-Dichlorobenzene ND H

308 345 ugSample 112919 1048 120719 0010 113-Dichloropropane ND H

308 615 ugSample 112919 1048 120719 0010 114-Dichlorobenzene ND H

615 628 ugSample 112919 1048 120719 0010 11-Chloro-11-difluoroethane ND H

615 615 ugSample 112919 1048 120719 0010 122-dichloro-11-difluoroethylmethyl

ether

ND H

308 898 ugSample 112919 1048 120719 0010 122-Dichloropropane ND H

123 197 ugSample 112919 1048 120719 0010 12-Butanone (MEK) ND H

615 911 ugSample 112919 1048 120719 0010 12-chloro-111444-hexafluoro-2-but

ene

ND H

615 615 ugSample 112919 1048 120719 0010 12-Chloro-111-Trifluoroethane ND H

308 578 ugSample 112919 1048 120719 0010 12-Chlorotoluene ND H

123 283 ugSample 112919 1048 120719 0010 12-Hexanone ND H

269 269 ugSample 112919 1048 120719 0010 12-MTP as HFPO 609 H

308 640 ugSample 112919 1048 120719 0010 14-Chlorotoluene ND H

308 825 ugSample 112919 1048 120719 0010 14-Isopropyltoluene ND H

123 197 ugSample 112919 1048 120719 0010 14-Methyl-2-pentanone (MIBK) ND H

123 726 ugSample 112919 1048 120719 0010 1Acetone ND H

308 591 ugSample 112919 1048 120719 0010 1Benzene ND H

308 431 ugSample 112919 1048 120719 0010 1Bromobenzene ND H

308 689 ugSample 112919 1048 120719 0010 1Bromochloromethane ND H

308 529 ugSample 112919 1048 120719 0010 1Bromodichloromethane ND H

308 935 ugSample 112919 1048 120719 0010 1Bromoform ND H

615 357 ugSample 112919 1048 120719 0010 1Bromomethane ND H

308 763 ugSample 112919 1048 120719 0010 1Carbon disulfide ND H

308 406 ugSample 112919 1048 120719 0010 1Carbon tetrachloride ND H

901 901 ugSample 112919 1048 120719 0010 1Carbonyl Difluoride ND H

308 443 ugSample 112919 1048 120719 0010 1Chlorobenzene ND H

308 665 ugSample 112919 1048 120719 0010 1Chlorodibromomethane ND H

615 135 ugSample 112919 1048 120719 0010 1Chloroethane ND H

308 357 ugSample 112919 1048 120719 0010 1Chloroform ND H

615 256 ugSample 112919 1048 120719 0010 1Chloromethane ND H

308 246 ugSample 112919 1048 120719 0010 1cis-12-Dichloroethene ND H

308 529 ugSample 112919 1048 120719 0010 1cis-13-Dichloropropene ND H

308 295 ugSample 112919 1048 120719 0010 1Dibromomethane ND H

615 108 ugSample 112919 1048 120719 0010 1Dichlorodifluoromethane ND H

308 505 ugSample 112919 1048 120719 0010 1Ethylbenzene ND H

308 308 ugSample 112919 1048 120719 0010 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND H

308 812 ugSample 112919 1048 120719 0010 1Hexachlorobutadiene ND H

295 295 ugSample 112919 1048 120719 0010 1HFPO dimer methyl ester as

HFPO-DA

ND H

308 431 ugSample 112919 1048 120719 0010 1Isopropylbenzene ND H

615 505 ugSample 112919 1048 120719 0010 1mp-Xylene ND H

308 197 ugSample 112919 1048 120719 0010 1Methylene Chloride ND H

308 148 ugSample 112919 1048 120719 0010 1Naphthalene ND H

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-9Client Sample ID Y-2972 R2 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

n-Butylbenzene ND H 308 788 ugSample 112919 1048 120719 0010 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

308 665 ugSample 112919 1048 120719 0010 1n-Propylbenzene ND H

308 320 ugSample 112919 1048 120719 0010 1o-Xylene ND H

308 603 ugSample 112919 1048 120719 0010 1sec-Butylbenzene ND H

308 665 ugSample 112919 1048 120719 0010 1Styrene ND H

308 542 ugSample 112919 1048 120719 0010 1tert-Butylbenzene ND H

308 406 ugSample 112919 1048 120719 0010 1Tetrachloroethene ND H

308 566 ugSample 112919 1048 120719 0010 1Toluene ND H

308 320 ugSample 112919 1048 120719 0010 1trans-12-Dichloroethene ND H

308 108 ugSample 112919 1048 120719 0010 1trans-13-Dichloropropene ND H

308 222 ugSample 112919 1048 120719 0010 1Trichloroethene ND H

615 591 ugSample 112919 1048 120719 0010 1Trichlorofluoromethane ND H

615 148 ugSample 112919 1048 120719 0010 1Vinyl chloride ND H

Unknown 490 T H J ugSample 113 112919 1048 120719 0010 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120719 0010112919 1048T H J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-82290 ugSample 118

1120719 0010112919 1048T H J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-8410 ugSample 122

1120719 0010112919 1048T H J NCyclohexane 110-82-7426 ugSample 442

12-Dichloroethane-d4 (Surr) 118 70 - 160 112919 1048 120719 0010 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1048 120719 0010 157 - 152

Dibromofluoromethane (Surr) 104 112919 1048 120719 0010 162 - 134

Toluene-d8 (Surr) 97 112919 1048 120719 0010 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 3770 J 6560 3280 ugSample 112919 1048 121319 1945 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2710 1230 ugSample 112919 1048 121819 1111 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-10Client Sample ID Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND H 304 401 ugSample 112919 1048 120719 0035 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

608 608 ugSample 112919 1048 120719 0035 111133-Pentafluorobutane ND H

304 438 ugSample 112919 1048 120719 0035 1111-Trichloroethane ND H

608 120 ugSample 112919 1048 120719 0035 1111-Trifluoro-22-dichloroethane ND H

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-10Client Sample ID Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

111-Trifluoroethane ND H 608 608 ugSample 112919 1048 120719 0035 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

304 584 ugSample 112919 1048 120719 0035 11122-Tetrachloroethane ND H

608 341 ugSample 112919 1048 120719 0035 1112-Trichloro-122-trifluoroethane ND H

608 608 ugSample 112919 1048 120719 0035 1112-trichloro-1-fluoroethane ND H

304 316 ugSample 112919 1048 120719 0035 1112-Trichloroethane ND H

608 304 ugSample 112919 1048 120719 0035 111-Dichloro-1-fluoroethane ND H

608 608 ugSample 112919 1048 120719 0035 111-dichloro-22-difluoroethane ND H

608 608 ugSample 112919 1048 120719 0035 111-dichloro-22-difluoroethene ND H

304 365 ugSample 112919 1048 120719 0035 111-Dichloroethane ND H

304 450 ugSample 112919 1048 120719 0035 111-Dichloroethene ND H

304 328 ugSample 112919 1048 120719 0035 111-Dichloropropene ND H

608 608 ugSample 112919 1048 120719 0035 111-Difluoroethene ND H

608 608 ugSample 112919 1048 120719 0035 1122-trichloro-11-difluoroethane ND H

304 973 ugSample 112919 1048 120719 0035 1123-Trichlorobenzene ND H

304 754 ugSample 112919 1048 120719 0035 1123-Trichloropropane ND H

304 102 ugSample 112919 1048 120719 0035 1124-Trichlorobenzene ND H

304 632 ugSample 112919 1048 120719 0035 1124-Trimethylbenzene ND H

608 107 ugSample 112919 1048 120719 0035 112-Dibromo-3-Chloropropane ND H

304 401 ugSample 112919 1048 120719 0035 112-Dibromoethane (EDB) ND H

608 608 ugSample 112919 1048 120719 0035 112-dichloro-11-difluoroethane ND H

304 535 ugSample 112919 1048 120719 0035 112-Dichlorobenzene ND H

304 511 ugSample 112919 1048 120719 0035 112-Dichloroethane ND H

304 304 ugSample 112919 1048 120719 0035 112-Dichloropropane ND H

304 632 ugSample 112919 1048 120719 0035 1135-Trimethylbenzene ND H

304 523 ugSample 112919 1048 120719 0035 113-Dichlorobenzene ND H

304 341 ugSample 112919 1048 120719 0035 113-Dichloropropane ND H

304 608 ugSample 112919 1048 120719 0035 114-Dichlorobenzene ND H

608 620 ugSample 112919 1048 120719 0035 11-Chloro-11-difluoroethane ND H

608 608 ugSample 112919 1048 120719 0035 122-dichloro-11-difluoroethylmethyl

ether

ND H

304 888 ugSample 112919 1048 120719 0035 122-Dichloropropane ND H

122 195 ugSample 112919 1048 120719 0035 12-Butanone (MEK) ND H

608 900 ugSample 112919 1048 120719 0035 12-chloro-111444-hexafluoro-2-but

ene

ND H

608 608 ugSample 112919 1048 120719 0035 12-Chloro-111-Trifluoroethane ND H

304 572 ugSample 112919 1048 120719 0035 12-Chlorotoluene ND H

122 280 ugSample 112919 1048 120719 0035 12-Hexanone ND H

266 266 ugSample 112919 1048 120719 0035 12-MTP as HFPO 629 H

304 632 ugSample 112919 1048 120719 0035 14-Chlorotoluene ND H

304 815 ugSample 112919 1048 120719 0035 14-Isopropyltoluene ND H

122 195 ugSample 112919 1048 120719 0035 14-Methyl-2-pentanone (MIBK) ND H

122 718 ugSample 112919 1048 120719 0035 1Acetone ND H

304 584 ugSample 112919 1048 120719 0035 1Benzene ND H

304 426 ugSample 112919 1048 120719 0035 1Bromobenzene ND H

304 681 ugSample 112919 1048 120719 0035 1Bromochloromethane ND H

304 523 ugSample 112919 1048 120719 0035 1Bromodichloromethane ND H

304 924 ugSample 112919 1048 120719 0035 1Bromoform ND H

608 353 ugSample 112919 1048 120719 0035 1Bromomethane ND H

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-10Client Sample ID Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Carbon disulfide ND H 304 754 ugSample 112919 1048 120719 0035 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

304 401 ugSample 112919 1048 120719 0035 1Carbon tetrachloride ND H

894 894 ugSample 112919 1048 120719 0035 1Carbonyl Difluoride ND H

304 438 ugSample 112919 1048 120719 0035 1Chlorobenzene ND H

304 657 ugSample 112919 1048 120719 0035 1Chlorodibromomethane ND H

608 134 ugSample 112919 1048 120719 0035 1Chloroethane ND H

304 353 ugSample 112919 1048 120719 0035 1Chloroform ND H

608 253 ugSample 112919 1048 120719 0035 1Chloromethane ND H

304 243 ugSample 112919 1048 120719 0035 1cis-12-Dichloroethene ND H

304 523 ugSample 112919 1048 120719 0035 1cis-13-Dichloropropene ND H

304 292 ugSample 112919 1048 120719 0035 1Dibromomethane ND H

608 107 ugSample 112919 1048 120719 0035 1Dichlorodifluoromethane ND H

304 499 ugSample 112919 1048 120719 0035 1Ethylbenzene ND H

304 304 ugSample 112919 1048 120719 0035 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND H

304 803 ugSample 112919 1048 120719 0035 1Hexachlorobutadiene ND H

292 292 ugSample 112919 1048 120719 0035 1HFPO dimer methyl ester as

HFPO-DA

ND H

304 426 ugSample 112919 1048 120719 0035 1Isopropylbenzene ND H

608 499 ugSample 112919 1048 120719 0035 1mp-Xylene ND H

304 195 ugSample 112919 1048 120719 0035 1Methylene Chloride ND H

304 146 ugSample 112919 1048 120719 0035 1Naphthalene ND H

304 778 ugSample 112919 1048 120719 0035 1n-Butylbenzene ND H

304 657 ugSample 112919 1048 120719 0035 1n-Propylbenzene ND H

304 316 ugSample 112919 1048 120719 0035 1o-Xylene ND H

304 596 ugSample 112919 1048 120719 0035 1sec-Butylbenzene ND H

304 657 ugSample 112919 1048 120719 0035 1Styrene ND H

304 535 ugSample 112919 1048 120719 0035 1tert-Butylbenzene ND H

304 401 ugSample 112919 1048 120719 0035 1Tetrachloroethene ND H

304 559 ugSample 112919 1048 120719 0035 1Toluene ND H

304 316 ugSample 112919 1048 120719 0035 1trans-12-Dichloroethene ND H

304 107 ugSample 112919 1048 120719 0035 1trans-13-Dichloropropene ND H

304 219 ugSample 112919 1048 120719 0035 1Trichloroethene ND H

608 584 ugSample 112919 1048 120719 0035 1Trichlorofluoromethane ND H

608 146 ugSample 112919 1048 120719 0035 1Vinyl chloride ND H

Butanoic acid heptafluoro- sodium

salt

484 T H J N ugSample 113 2218-54-4 112919 1048 120719 0035 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120719 0035112919 1048T H JUnknown 1700 ugSample 118

1120719 0035112919 1048T H J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-8316 ugSample 122

1120719 0035112919 1048T H J NCyclohexane 110-82-7432 ugSample 442

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1048 120719 0035 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 110 112919 1048 120719 0035 157 - 152

Dibromofluoromethane (Surr) 103 112919 1048 120719 0035 162 - 134

Toluene-d8 (Surr) 97 112919 1048 120719 0035 171 - 139

Eurofins TestAmerica Knoxville

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-10Client Sample ID Y-2973 R2 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 3540 J 6490 3240 ugSample 112919 1048 121319 2006 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2680 1220 ugSample 112919 1048 121819 1215 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-11Client Sample ID Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND H 314 414 ugSample 112919 1048 120719 0059 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

627 627 ugSample 112919 1048 120719 0059 111133-Pentafluorobutane ND H

314 452 ugSample 112919 1048 120719 0059 1111-Trichloroethane ND H

627 124 ugSample 112919 1048 120719 0059 1111-Trifluoro-22-dichloroethane ND H

627 627 ugSample 112919 1048 120719 0059 1111-Trifluoroethane ND H

314 602 ugSample 112919 1048 120719 0059 11122-Tetrachloroethane ND H

627 351 ugSample 112919 1048 120719 0059 1112-Trichloro-122-trifluoroethane ND H

627 627 ugSample 112919 1048 120719 0059 1112-trichloro-1-fluoroethane ND H

314 326 ugSample 112919 1048 120719 0059 1112-Trichloroethane ND H

627 314 ugSample 112919 1048 120719 0059 111-Dichloro-1-fluoroethane ND H

627 627 ugSample 112919 1048 120719 0059 111-dichloro-22-difluoroethane ND H

627 627 ugSample 112919 1048 120719 0059 111-dichloro-22-difluoroethene ND H

314 376 ugSample 112919 1048 120719 0059 111-Dichloroethane ND H

314 464 ugSample 112919 1048 120719 0059 111-Dichloroethene ND H

314 339 ugSample 112919 1048 120719 0059 111-Dichloropropene ND H

627 627 ugSample 112919 1048 120719 0059 111-Difluoroethene ND H

627 627 ugSample 112919 1048 120719 0059 1122-trichloro-11-difluoroethane ND H

314 100 ugSample 112919 1048 120719 0059 1123-Trichlorobenzene ND H

314 778 ugSample 112919 1048 120719 0059 1123-Trichloropropane ND H

314 105 ugSample 112919 1048 120719 0059 1124-Trichlorobenzene ND H

314 653 ugSample 112919 1048 120719 0059 1124-Trimethylbenzene ND H

627 110 ugSample 112919 1048 120719 0059 112-Dibromo-3-Chloropropane ND H

314 414 ugSample 112919 1048 120719 0059 112-Dibromoethane (EDB) ND H

627 627 ugSample 112919 1048 120719 0059 112-dichloro-11-difluoroethane ND H

314 552 ugSample 112919 1048 120719 0059 112-Dichlorobenzene ND H

314 527 ugSample 112919 1048 120719 0059 112-Dichloroethane ND H

314 314 ugSample 112919 1048 120719 0059 112-Dichloropropane ND H

314 653 ugSample 112919 1048 120719 0059 1135-Trimethylbenzene ND H

314 540 ugSample 112919 1048 120719 0059 113-Dichlorobenzene ND H

314 351 ugSample 112919 1048 120719 0059 113-Dichloropropane ND H

314 627 ugSample 112919 1048 120719 0059 114-Dichlorobenzene ND H

627 640 ugSample 112919 1048 120719 0059 11-Chloro-11-difluoroethane ND H

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Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-11Client Sample ID Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

22-dichloro-11-difluoroethylmethyl

ether

ND H 627 627 ugSample 112919 1048 120719 0059 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

314 916 ugSample 112919 1048 120719 0059 122-Dichloropropane ND H

125 201 ugSample 112919 1048 120719 0059 12-Butanone (MEK) ND H

627 929 ugSample 112919 1048 120719 0059 12-chloro-111444-hexafluoro-2-but

ene

ND H

627 627 ugSample 112919 1048 120719 0059 12-Chloro-111-Trifluoroethane ND H

314 590 ugSample 112919 1048 120719 0059 12-Chlorotoluene ND H

125 289 ugSample 112919 1048 120719 0059 12-Hexanone ND H

274 274 ugSample 112919 1048 120719 0059 12-MTP as HFPO 609 H

314 653 ugSample 112919 1048 120719 0059 14-Chlorotoluene ND H

314 841 ugSample 112919 1048 120719 0059 14-Isopropyltoluene ND H

125 201 ugSample 112919 1048 120719 0059 14-Methyl-2-pentanone (MIBK) ND H

125 740 ugSample 112919 1048 120719 0059 1Acetone ND H

314 602 ugSample 112919 1048 120719 0059 1Benzene ND H

314 439 ugSample 112919 1048 120719 0059 1Bromobenzene ND H

314 703 ugSample 112919 1048 120719 0059 1Bromochloromethane ND H

314 540 ugSample 112919 1048 120719 0059 1Bromodichloromethane ND H

314 954 ugSample 112919 1048 120719 0059 1Bromoform ND H

627 364 ugSample 112919 1048 120719 0059 1Bromomethane ND H

314 778 ugSample 112919 1048 120719 0059 1Carbon disulfide ND H

314 414 ugSample 112919 1048 120719 0059 1Carbon tetrachloride ND H

916 916 ugSample 112919 1048 120719 0059 1Carbonyl Difluoride ND H

314 452 ugSample 112919 1048 120719 0059 1Chlorobenzene ND H

314 678 ugSample 112919 1048 120719 0059 1Chlorodibromomethane ND H

627 138 ugSample 112919 1048 120719 0059 1Chloroethane ND H

314 364 ugSample 112919 1048 120719 0059 1Chloroform ND H

627 261 ugSample 112919 1048 120719 0059 1Chloromethane ND H

314 251 ugSample 112919 1048 120719 0059 1cis-12-Dichloroethene ND H

314 540 ugSample 112919 1048 120719 0059 1cis-13-Dichloropropene ND H

314 301 ugSample 112919 1048 120719 0059 1Dibromomethane ND H

627 110 ugSample 112919 1048 120719 0059 1Dichlorodifluoromethane ND H

314 515 ugSample 112919 1048 120719 0059 1Ethylbenzene ND H

314 314 ugSample 112919 1048 120719 0059 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND H

314 828 ugSample 112919 1048 120719 0059 1Hexachlorobutadiene ND H

301 301 ugSample 112919 1048 120719 0059 1HFPO dimer methyl ester as

HFPO-DA

ND H

314 439 ugSample 112919 1048 120719 0059 1Isopropylbenzene ND H

627 515 ugSample 112919 1048 120719 0059 1mp-Xylene ND H

314 201 ugSample 112919 1048 120719 0059 1Methylene Chloride ND H

314 151 ugSample 112919 1048 120719 0059 1Naphthalene ND H

314 803 ugSample 112919 1048 120719 0059 1n-Butylbenzene ND H

314 678 ugSample 112919 1048 120719 0059 1n-Propylbenzene ND H

314 326 ugSample 112919 1048 120719 0059 1o-Xylene ND H

314 615 ugSample 112919 1048 120719 0059 1sec-Butylbenzene ND H

314 678 ugSample 112919 1048 120719 0059 1Styrene ND H

314 552 ugSample 112919 1048 120719 0059 1tert-Butylbenzene ND H

Eurofins TestAmerica Knoxville

12232019Page 39 of 89490

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-11Client Sample ID Y-2974 R2 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Tetrachloroethene ND H 314 414 ugSample 112919 1048 120719 0059 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

314 577 ugSample 112919 1048 120719 0059 1Toluene ND H

314 326 ugSample 112919 1048 120719 0059 1trans-12-Dichloroethene ND H

314 110 ugSample 112919 1048 120719 0059 1trans-13-Dichloropropene ND H

314 226 ugSample 112919 1048 120719 0059 1Trichloroethene ND H

627 602 ugSample 112919 1048 120719 0059 1Trichlorofluoromethane ND H

627 151 ugSample 112919 1048 120719 0059 1Vinyl chloride ND H

Propene hexafluoro- 421 T H J N ugSample 113 116-15-4 112919 1048 120719 0059 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120719 0059112919 1048T H JUnknown 882 ugSample 118

12-Dichloroethane-d4 (Surr) 116 70 - 160 112919 1048 120719 0059 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1048 120719 0059 157 - 152

Dibromofluoromethane (Surr) 105 112919 1048 120719 0059 162 - 134

Toluene-d8 (Surr) 96 112919 1048 120719 0059 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine ND 6690 3350 ugSample 112919 1048 121319 2027 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2760 1250 ugSample 112919 1048 121819 1238 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17461-12Client Sample ID Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND H 307 406 ugSample 112919 1048 120719 0124 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

615 615 ugSample 112919 1048 120719 0124 111133-Pentafluorobutane ND H

307 443 ugSample 112919 1048 120719 0124 1111-Trichloroethane ND H

615 122 ugSample 112919 1048 120719 0124 1111-Trifluoro-22-dichloroethane ND H

615 615 ugSample 112919 1048 120719 0124 1111-Trifluoroethane ND H

307 590 ugSample 112919 1048 120719 0124 11122-Tetrachloroethane ND H

615 344 ugSample 112919 1048 120719 0124 1112-Trichloro-122-trifluoroethane ND H

615 615 ugSample 112919 1048 120719 0124 1112-trichloro-1-fluoroethane ND H

307 320 ugSample 112919 1048 120719 0124 1112-Trichloroethane ND H

615 307 ugSample 112919 1048 120719 0124 111-Dichloro-1-fluoroethane ND H

615 615 ugSample 112919 1048 120719 0124 111-dichloro-22-difluoroethane ND H

615 615 ugSample 112919 1048 120719 0124 111-dichloro-22-difluoroethene ND H

307 369 ugSample 112919 1048 120719 0124 111-Dichloroethane ND H

Eurofins TestAmerica Knoxville

12232019Page 40 of 89491

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-12Client Sample ID Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

11-Dichloroethene ND H 307 455 ugSample 112919 1048 120719 0124 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

307 332 ugSample 112919 1048 120719 0124 111-Dichloropropene ND H

615 615 ugSample 112919 1048 120719 0124 111-Difluoroethene ND H

615 615 ugSample 112919 1048 120719 0124 1122-trichloro-11-difluoroethane ND H

307 983 ugSample 112919 1048 120719 0124 1123-Trichlorobenzene ND H

307 762 ugSample 112919 1048 120719 0124 1123-Trichloropropane ND H

307 103 ugSample 112919 1048 120719 0124 1124-Trichlorobenzene ND H

307 639 ugSample 112919 1048 120719 0124 1124-Trimethylbenzene ND H

615 108 ugSample 112919 1048 120719 0124 112-Dibromo-3-Chloropropane ND H

307 406 ugSample 112919 1048 120719 0124 112-Dibromoethane (EDB) ND H

615 615 ugSample 112919 1048 120719 0124 112-dichloro-11-difluoroethane ND H

307 541 ugSample 112919 1048 120719 0124 112-Dichlorobenzene ND H

307 516 ugSample 112919 1048 120719 0124 112-Dichloroethane ND H

307 307 ugSample 112919 1048 120719 0124 112-Dichloropropane ND H

307 639 ugSample 112919 1048 120719 0124 1135-Trimethylbenzene ND H

307 529 ugSample 112919 1048 120719 0124 113-Dichlorobenzene ND H

307 344 ugSample 112919 1048 120719 0124 113-Dichloropropane ND H

307 615 ugSample 112919 1048 120719 0124 114-Dichlorobenzene ND H

615 627 ugSample 112919 1048 120719 0124 11-Chloro-11-difluoroethane ND H

615 615 ugSample 112919 1048 120719 0124 122-dichloro-11-difluoroethylmethyl

ether

ND H

307 897 ugSample 112919 1048 120719 0124 122-Dichloropropane ND H

123 197 ugSample 112919 1048 120719 0124 12-Butanone (MEK) ND H

615 910 ugSample 112919 1048 120719 0124 12-chloro-111444-hexafluoro-2-but

ene

ND H

615 615 ugSample 112919 1048 120719 0124 12-Chloro-111-Trifluoroethane ND H

307 578 ugSample 112919 1048 120719 0124 12-Chlorotoluene ND H

123 283 ugSample 112919 1048 120719 0124 12-Hexanone ND H

268 268 ugSample 112919 1048 120719 0124 12-MTP as HFPO 583 H

307 639 ugSample 112919 1048 120719 0124 14-Chlorotoluene ND H

307 824 ugSample 112919 1048 120719 0124 14-Isopropyltoluene ND H

123 197 ugSample 112919 1048 120719 0124 14-Methyl-2-pentanone (MIBK) ND H

123 725 ugSample 112919 1048 120719 0124 1Acetone ND H

307 590 ugSample 112919 1048 120719 0124 1Benzene ND H

307 430 ugSample 112919 1048 120719 0124 1Bromobenzene ND H

307 688 ugSample 112919 1048 120719 0124 1Bromochloromethane ND H

307 529 ugSample 112919 1048 120719 0124 1Bromodichloromethane ND H

307 934 ugSample 112919 1048 120719 0124 1Bromoform ND H

615 356 ugSample 112919 1048 120719 0124 1Bromomethane ND H

307 762 ugSample 112919 1048 120719 0124 1Carbon disulfide ND H

307 406 ugSample 112919 1048 120719 0124 1Carbon tetrachloride ND H

901 901 ugSample 112919 1048 120719 0124 1Carbonyl Difluoride ND H

307 443 ugSample 112919 1048 120719 0124 1Chlorobenzene ND H

307 664 ugSample 112919 1048 120719 0124 1Chlorodibromomethane ND H

615 135 ugSample 112919 1048 120719 0124 1Chloroethane ND H

307 356 ugSample 112919 1048 120719 0124 1Chloroform ND H

615 256 ugSample 112919 1048 120719 0124 1Chloromethane ND H

307 246 ugSample 112919 1048 120719 0124 1cis-12-Dichloroethene ND H

Eurofins TestAmerica Knoxville

12232019Page 41 of 89492

Client Sample ResultsJob ID 140-17461-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17461-12Client Sample ID Y-2975 R2 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

cis-13-Dichloropropene ND H 307 529 ugSample 112919 1048 120719 0124 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

307 295 ugSample 112919 1048 120719 0124 1Dibromomethane ND H

615 108 ugSample 112919 1048 120719 0124 1Dichlorodifluoromethane ND H

307 504 ugSample 112919 1048 120719 0124 1Ethylbenzene ND H

307 307 ugSample 112919 1048 120719 0124 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND H

307 811 ugSample 112919 1048 120719 0124 1Hexachlorobutadiene ND H

294 294 ugSample 112919 1048 120719 0124 1HFPO dimer methyl ester as

HFPO-DA

ND H

307 430 ugSample 112919 1048 120719 0124 1Isopropylbenzene ND H

615 504 ugSample 112919 1048 120719 0124 1mp-Xylene ND H

307 197 ugSample 112919 1048 120719 0124 1Methylene Chloride ND H

307 148 ugSample 112919 1048 120719 0124 1Naphthalene ND H

307 787 ugSample 112919 1048 120719 0124 1n-Butylbenzene ND H

307 664 ugSample 112919 1048 120719 0124 1n-Propylbenzene ND H

307 320 ugSample 112919 1048 120719 0124 1o-Xylene ND H

307 602 ugSample 112919 1048 120719 0124 1sec-Butylbenzene ND H

307 664 ugSample 112919 1048 120719 0124 1Styrene ND H

307 541 ugSample 112919 1048 120719 0124 1tert-Butylbenzene ND H

307 406 ugSample 112919 1048 120719 0124 1Tetrachloroethene ND H

307 565 ugSample 112919 1048 120719 0124 1Toluene ND H

307 320 ugSample 112919 1048 120719 0124 1trans-12-Dichloroethene ND H

307 108 ugSample 112919 1048 120719 0124 1trans-13-Dichloropropene ND H

307 221 ugSample 112919 1048 120719 0124 1Trichloroethene ND H

615 590 ugSample 112919 1048 120719 0124 1Trichlorofluoromethane ND H

615 148 ugSample 112919 1048 120719 0124 1Vinyl chloride ND H

Propene hexafluoro- 333 T H J N ugSample 113 116-15-4 112919 1048 120719 0124 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1120719 0124112919 1048T H JUnknown 498 ugSample 118

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1048 120719 0124 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 112919 1048 120719 0124 157 - 152

Dibromofluoromethane (Surr) 104 112919 1048 120719 0124 162 - 134

Toluene-d8 (Surr) 96 112919 1048 120719 0124 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 28100 6560 3280 ugSample 112919 1048 121319 2047 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2700 1230 ugSample 112919 1048 121819 1259 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Eurofins TestAmerica Knoxville

12232019Page 42 of 89493

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17461-1ProjectSite VEN Stack - MM-18

Method 8260B - Volatile Organic Compounds (GCMS)Prep MeOH Prep

2501112-Tetrachloroethane ugSample

Analyte UnitsMDLRL

0330

50011133-Pentafluorobutane ugSample0500

250111-Trichloroethane ugSample0360

500111-Trifluoro-22-dichloroethane ugSample0990

500111-Trifluoroethane ugSample0500

2501122-Tetrachloroethane ugSample0480

500112-Trichloro-122-trifluoroethane ugSample0280

500112-trichloro-1-fluoroethane ugSample0500

250112-Trichloroethane ugSample0260

50011-Dichloro-1-fluoroethane ugSample250

50011-dichloro-22-difluoroethane ugSample0500

50011-dichloro-22-difluoroethene ugSample0500

25011-Dichloroethane ugSample0300

25011-Dichloroethene ugSample0370

25011-Dichloropropene ugSample0270

50011-Difluoroethene ugSample500

500122-trichloro-11-difluoroethane ugSample0500

250123-Trichlorobenzene ugSample0800

250123-Trichloropropane ugSample0620

250124-Trichlorobenzene ugSample0840

250124-Trimethylbenzene ugSample0520

50012-Dibromo-3-Chloropropane ugSample0880

25012-Dibromoethane (EDB) ugSample0330

50012-dichloro-11-difluoroethane ugSample0500

25012-Dichlorobenzene ugSample0440

25012-Dichloroethane ugSample0420

25012-Dichloropropane ugSample0250

250135-Trimethylbenzene ugSample0520

25013-Dichlorobenzene ugSample0430

25013-Dichloropropane ugSample0280

25014-Dichlorobenzene ugSample0500

5001-Chloro-11-difluoroethane ugSample0510

50022-dichloro-11-difluoroethylmethyl ether ugSample0500

25022-Dichloropropane ugSample0730

1002-Butanone (MEK) ugSample160

5002-chloro-111444-hexafluoro-2-butene ugSample0740

5002-Chloro-111-Trifluoroethane ugSample0500

2502-Chlorotoluene ugSample0470

1002-Hexanone ugSample230

2502-MTP as HFPO ugSample250

2504-Chlorotoluene ugSample0520

2504-Isopropyltoluene ugSample0670

1004-Methyl-2-pentanone (MIBK) ugSample160

100Acetone ugSample590

250Benzene ugSample0480

250Bromobenzene ugSample0350

250Bromochloromethane ugSample0560

250Bromodichloromethane ugSample0430

250Bromoform ugSample0760

500Bromomethane ugSample290

250Carbon disulfide ugSample0620

250Carbon tetrachloride ugSample0330

Eurofins TestAmerica Knoxville

12232019Page 43 of 89494

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17461-1ProjectSite VEN Stack - MM-18

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)Prep MeOH Prep

100Carbonyl Difluoride ugSample

Analyte UnitsMDLRL

100

250Chlorobenzene ugSample0360

250Chlorodibromomethane ugSample0540

500Chloroethane ugSample110

250Chloroform ugSample0290

500Chloromethane ugSample208

250cis-12-Dichloroethene ugSample0200

250cis-13-Dichloropropene ugSample0430

250Dibromomethane ugSample0240

500Dichlorodifluoromethane ugSample0880

250Ethylbenzene ugSample0410

250Heptafluoropropyl 1222-tetrafluoroethyl ether ugSample250

250Hexachlorobutadiene ugSample0660

250HFPO dimer methyl ester as HFPO-DA ugSample250

250Isopropylbenzene ugSample0350

500mp-Xylene ugSample0410

250Methylene Chloride ugSample160

250Naphthalene ugSample120

250n-Butylbenzene ugSample0640

250n-Propylbenzene ugSample0540

250o-Xylene ugSample0260

250sec-Butylbenzene ugSample0490

250Styrene ugSample0540

250tert-Butylbenzene ugSample0440

250Tetrachloroethene ugSample0330

250Toluene ugSample0460

250trans-12-Dichloroethene ugSample0260

250trans-13-Dichloropropene ugSample0880

250Trichloroethene ugSample0180

500Trichlorofluoromethane ugSample0480

500Vinyl chloride ugSample120

Method 9056 - Anions Ion ChromatographyPrep MeOH Prep

110Hydrogen Fluoride ugSample

Analyte UnitsMDLRL

500

1000Total Fluorine ugSample500

Eurofins TestAmerica Knoxville

12232019Page 44 of 89495

ANALYTICAL REPORTJob Number 140-17557-1

Job Description VEN Stack - MM-18

Contract Number LBIO-67048

ForChemours Company FC LLC The

co AECOMSabre Building Suite 300

4051 Ogletown RoadNewark DE 19713

Attention Michael Aucoin

_____________________________________________

Approved for releaseCourtney M AdkinsProject Manager II12302019 639 AM

Courtney M Adkins Project Manager II5815 Middlebrook Pike Knoxville TN 37921

(865)291-3000 courtneyadkinstestamericainccom

12302019

This report may not be reproduced except in full and with written approval from the laboratory For questions please contact the Project Manager atthe e-mail address or telephone number listed on this page

The test results in this report relate only to the samples as received by the laboratory and will meet all requirements of the methodology with anyexceptions noted This report shall not be reproduced except in full without the express written approval of the laboratory All questions should bedirected to the Eurofins TestAmerica Project Manager

This report has been electronically signed and authorized by the signatory Electronic signature is intended to be the legally binding equivalent of atraditionally handwritten signature

Eurofins TestAmerica Knoxville

5815 Middlebrook Pike Knoxville TN 37921

Tel (865) 291-3000 Fax (865) 584-4315 wwwtestamericainccom

12302019Page 1 of 70696

Table of ContentsCover Title Page 1

Data Summaries 5

Definitions 5

Method Summary 6

Sample Summary 7

Case Narrative 8

QC Association 10

Client Sample Results 13

Default Detection Limits 28

Surrogate Summary 30

QC Sample Results 31

Chronicle 38

Certification Summary 44

Manual Integration Summary 45

Organic Sample Data 55

GCMS VOA 55

Method 8260B 55Method 8260B QC Summary 56Method 8260B Sample Data 71Standards Data 188

Method 8260B ICAL Data 188Method 8260B CCAL Data 290

Raw QC Data 362Method 8260B Tune Data 362Method 8260B Blank Data 382Method 8260B LCSLCSD Data 391

12302019Page 2 of 70697

Table of ContentsMethod 8260B MSMSD Data 403

Method 8260B Run Logs 411Method 8260B Prep Data 428

HPLCIC 431

Method 9056 431Method 9056 QC Summary 432Method 9056 Sample Data 437Standards Data 455

Method 9056 ICAL Data 455Method 9056 CCAL Data 482

Raw QC Data 511Method 9056 Blank Data 511Method 9056 LCSLCSD Data 532Method 9056 MSMSD Data 538

Method 9056 Run Logs 544Method 9056 Prep Data 549

Method 9056A Total Halogens 552Method 9056A Total Halogens QC Summary 553Method 9056A Total Halogens Sample Data 558Standards Data 576

Method 9056A Total Halogens ICAL Data 576Method 9056A Total Halogens CCAL Data 601

Raw QC Data 629Method 9056A Total Halogens Blank Data 629Method 9056A Total Halogens LCSLCSD Data 654Method 9056A Total Halogens MSMSD Data 660

12302019Page 3 of 70698

Table of ContentsMethod 9056A Total Halogens Run Logs 666Method 9056A Total Halogens Prep Data 680

Inorganic Sample Data 685

General Chemistry Data 685

Gen Chem Cover Page 686

Gen Chem Sample Data 687

Gen Chem QC Data 693Gen Chem ICVCCV 693Gen Chem Duplicates 694

Gen Chem MDL 695

Gen Chem Analysis Run Log 696

Gen Chem Prep Data 697

Gen Chem Raw Data 698

Shipping and Receiving Documents 699

Client Chain of Custody 700

12302019Page 4 of 70699

DefinitionsGlossaryJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Qualifiers

GCMS VOAQualifier Description

LCS or LCSD is outside acceptance limits

Qualifier

4 MS MSD The analyte present in the original sample is greater than 4 times the matrix spike concentration therefore control limits are not

applicableE Result exceeded calibration range

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

GCMS VOA TICsQualifier Description

J Indicates an Estimated Value for TICs

Qualifier

N Presumptive evidence of material

T Result is a tentatively identified compound (TIC) and an estimated value

HPLCICQualifier Description

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

Qualifier

General ChemistryQualifier Description

HF Field parameter with a holding time of 15 minutes Test performed by laboratory at clients request

Qualifier

GlossaryThese commonly used abbreviations may or may not be present in this report

curren Listed under the D column to designate that the result is reported on a dry weight basis

Abbreviation

R Percent Recovery

CFL Contains Free Liquid

CNF Contains No Free Liquid

DER Duplicate Error Ratio (normalized absolute difference)

Dil Fac Dilution Factor

DL Detection Limit (DoDDOE)

DL RA RE IN Indicates a Dilution Re-analysis Re-extraction or additional Initial metalsanion analysis of the sample

DLC Decision Level Concentration (Radiochemistry)

EDL Estimated Detection Limit (Dioxin)

LOD Limit of Detection (DoDDOE)

LOQ Limit of Quantitation (DoDDOE)

MDA Minimum Detectable Activity (Radiochemistry)

MDC Minimum Detectable Concentration (Radiochemistry)

MDL Method Detection Limit

ML Minimum Level (Dioxin)

NC Not Calculated

ND Not Detected at the reporting limit (or MDL or EDL if shown)

PQL Practical Quantitation Limit

QC Quality Control

RER Relative Error Ratio (Radiochemistry)

RL Reporting Limit or Requested Limit (Radiochemistry)

RPD Relative Percent Difference a measure of the relative difference between two points

TEF Toxicity Equivalent Factor (Dioxin)

TEQ Toxicity Equivalent Quotient (Dioxin)

Eurofins TestAmerica Knoxville

12302019Page 5 of 706100

Method SummaryJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Method Method Description LaboratoryProtocol

SW8468260B Volatile Organic Compounds (GCMS) TAL KNX

SW8469056 Anions Ion Chromatography TAL KNX

SW8469041A pH TAL KNX

SW8465050 Bomb Preparation Method for Solid Waste TAL KNX

NoneMeOH Prep Methanol Impinger Preparation TAL KNX

Protocol References

None = None

SW846 = Test Methods For Evaluating Solid Waste PhysicalChemical Methods Third Edition November 1986 And Its Updates

Laboratory References

TAL KNX = Eurofins TestAmerica Knoxville 5815 Middlebrook Pike Knoxville TN 37921 TEL (865)291-3000

Eurofins TestAmerica Knoxville

12302019Page 6 of 706101

Sample SummaryJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID Client Sample ID ReceivedCollectedMatrix Asset ID

140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 Air 120419 0000 120719 0800

140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 Air 120419 0000 120719 0800

140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 Air 120419 0000 120719 0800

140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 Air 120419 0000 120719 0800

140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 Air 120419 0000 120719 0800

140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 Air 120419 0000 120719 0800

Eurofins TestAmerica Knoxville

12302019Page 7 of 706102

Job Narrative140-17557-1

Receipt The samples were received on December 7 2019 at 800 AM the samples arrived in good condition properly preserved and where required on ice The temperatures of the 2 coolers at receipt time were 09ordm C and 14ordm C

GCMS VOA Impinger Sample Preparation and Analysis Impinger samples were analyzed for the volatile organic target analytes by purge and trap GCMS using Eurofins TestAmerica Knoxville standard operating procedure KNOX-MS-0015 based on the following method

middot SW-846 8260B ldquoVolatile Organic Compounds by Gas Chromatography Mass Spectrometry (GCMS)rdquo

Each sample is prepared by adding a known amount of sample to the purge water in a purge and trap vessel and spiking with internal standards surrogates and matrix spike analytes (as needed) Volatile compounds are introduced into the gas chromatograph by the purge and trap method The components are separated using the chromatograph and detected using a mass spectrometer which provides both qualitative and quantitative information

Impinger sample results were calculated using the following equation

Concentration μgsample = (C times DF times W times Vt) (Va)WhereC = On-column concentration μgLDF = Dilution factorW = Volume of water purged LVt = Methanol extract final volume μL Va = Volume of extract analyzed microL

Method 8260B (LCS 140-359561-A) for analytical batch 140-35964 recovered below marginal exceedance limits for Trichlorofluoromethane This is an ongoing instrument issue with LCS recoveries for this analyte The project manager approved moving forward with analysis for the current job

Method 8260B The following samples were diluted to bring the concentration of target analytes within the calibration range Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 (140-17557-1) Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 (140-17557-2) Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 (140-17557-3) Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 (140-17557-4) Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 (140-17557-5) and Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 (140-17557-6) Elevated reporting limits (RLs) are provided

Method 8260B The continuing calibration verification (CCV) associated with batch 140-35990 recovered above the upper control limit for Chloroethane The samples associated with this CCV were non-detects for the affected analytes therefore the data have been reported

No additional analytical or quality issues were noted other than those described above or in the DefinitionsGlossary page

General Chemistry Total Halogens The samples were prepared for total fluorine chlorine bromine andor iodine using SOP number KNOX-WC-0016 (based on ASTM Method E442 and SW-846 Method 5050) The sample is oxidized by combustion in an oxygen flask at atmospheric pressure or a bomb containing oxygen under pressure The liberated halogen compounds are absorbed primarily as halides in a sodium carbonatesodium bicarbonate buffer solution The combustion products are collected by repeated rinsing of the combustion apparatus and analyzed by ion chromatography in accordance with SOP KNOX-WC-0005 (based on SW-846 Method 9056) The results are calculated using the following equation

C = [(Ccom times Vcom) W] times 1000 gKg

WhereC = Concentration of analyte in the sample mgKgCcom = Concentration of analyte in the combustate mgLVcom = Total volume of combustate LW = Weight of sample combusted g

Anions in Impinger Solutions Anions are is determined in accordance to SOP KNOX-WC-0005 (based on methods 3000A and 9056) The samples were diluted a minimum of 120 in ion chromatography solvent buffer solution to reduce the methanol concentration before injection Buffer concentrate was added until the pH was 10 Samples are diluted with ion chromatography eluate solution to bring the

12302019Page 8 of 706103

concentrations within the calibration range when necessary Higher dilutions are applied as necessary

An aliquot of prepared sample is introduced into the ion chromatograph Anions are identified based on their retention times as compared to those of known standards Quantification is accomplished by measuring the peak response and comparing it to a calibration curve generated from known standards

The pH of all samples were tested with pH paper QC consisted of initial CCV and LCS which also serve as initial calibration duplicate analysis for every 10 samples and closing CCV A certified thermometer was used to check the ambient temperature

No additional analytical or quality issues were noted other than those described above or in the DefinitionsGlossary page

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QC Association SummaryJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

GCMS VOA

Prep Batch 35956

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air MeOH Prep140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17557-2 - DL Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17557-3 - DL Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air MeOH Prep140-17557-4 - DL Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air MeOH Prep140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air MeOH Prep140-17557-6 - DL Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH Prep140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH PrepMB 140-359562-A Method Blank TotalNA

Air MeOH PrepLCS 140-359561-A Lab Control Sample TotalNA

Air MeOH Prep140-17557-2 MS Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17557-2 MSD Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Analysis Batch 35964

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8260B 35956140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 8260B 35956140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 8260B 35956140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 8260B 35956140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 8260B 35956140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 8260B 35956140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 8260B 35956MB 140-359562-A Method Blank TotalNA

Air 8260B 35956LCS 140-359561-A Lab Control Sample TotalNA

Air 8260B 35956LCS 140-359561-A Lab Control Sample TotalNA

Analysis Batch 35990

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8260B 35956140-17557-2 - DL Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 8260B 35956140-17557-3 - DL Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 8260B 35956140-17557-4 - DL Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 8260B 35956140-17557-6 - DL Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 8260B 35956140-17557-2 MS Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 8260B 35956140-17557-2 MSD Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

HPLCIC

Prep Batch 35956

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air MeOH Prep140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air MeOH Prep140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air MeOH Prep140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air MeOH Prep140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air MeOH PrepMB 140-3595619-A Method Blank TotalNA

Air MeOH PrepMB 140-3595619-B Method Blank TotalNA

Air MeOH PrepLCS 140-3595620-A Lab Control Sample TotalNA

Air MeOH PrepLCS 140-3595620-B Lab Control Sample TotalNA

Air MeOH PrepLCSD 140-3595621-A Lab Control Sample Dup TotalNA

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QC Association SummaryJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

HPLCIC (Continued)

Prep Batch 35956 (Continued)

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH PrepLCSD 140-3595621-B Lab Control Sample Dup TotalNA

Air MeOH Prep140-17557-2 MS Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air MeOH Prep140-17557-2 MSD Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Prep Batch 35976

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 5050 35956140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 5050 35956140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 5050 35956140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 5050 35956140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 5050 35956140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 5050 35956140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 5050 35956MB 140-3595619-B Method Blank TotalNA

Air 5050 35956LCS 140-3595620-B Lab Control Sample TotalNA

Air 5050 35956LCSD 140-3595621-B Lab Control Sample Dup TotalNA

Air 5050 35956140-17557-2 MS Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 5050 35956140-17557-2 MSD Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Analysis Batch 36294

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35976140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9056 35976140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35976140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9056 35976140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9056 35976140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9056 35976140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9056 35976MB 140-3595619-B Method Blank TotalNA

Air 9056 35976LCS 140-3595620-B Lab Control Sample TotalNA

Air 9056 35976LCSD 140-3595621-B Lab Control Sample Dup TotalNA

Air 9056 35976140-17557-2 MS Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35976140-17557-2 MSD Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Analysis Batch 36325

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35956140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

Air 9056 35956140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35956140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9056 35956140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9056 35956140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9056 35956140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9056 35956MB 140-3595619-A Method Blank TotalNA

Air 9056 35956LCS 140-3595620-A Lab Control Sample TotalNA

Air 9056 35956LCSD 140-3595621-A Lab Control Sample Dup TotalNA

Air 9056 35956140-17557-2 MS Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9056 35956140-17557-2 MSD Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

General Chemistry

Analysis Batch 36156

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9041A140-17557-1 Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

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QC Association SummaryJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

General Chemistry (Continued)

Analysis Batch 36156 (Continued)

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9041A140-17557-2 Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2 TotalNA

Air 9041A140-17557-3 Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3 TotalNA

Air 9041A140-17557-4 Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4 TotalNA

Air 9041A140-17557-5 Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5 TotalNA

Air 9041A140-17557-6 Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6 TotalNA

Air 9041ALCS 140-361562 Lab Control Sample TotalNA

Air 9041A140-17557-1 DU Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1 TotalNA

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Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-1Client Sample ID Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 315 415 ugSample 121019 0947 121019 2258 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

629 629 ugSample 121019 0947 121019 2258 111133-Pentafluorobutane ND

315 453 ugSample 121019 0947 121019 2258 1111-Trichloroethane ND

629 125 ugSample 121019 0947 121019 2258 1111-Trifluoro-22-dichloroethane ND

629 629 ugSample 121019 0947 121019 2258 1111-Trifluoroethane ND

315 604 ugSample 121019 0947 121019 2258 11122-Tetrachloroethane ND

629 352 ugSample 121019 0947 121019 2258 1112-Trichloro-122-trifluoroethane ND

629 629 ugSample 121019 0947 121019 2258 1112-trichloro-1-fluoroethane ND

315 327 ugSample 121019 0947 121019 2258 1112-Trichloroethane ND

629 315 ugSample 121019 0947 121019 2258 111-Dichloro-1-fluoroethane ND

629 629 ugSample 121019 0947 121019 2258 111-dichloro-22-difluoroethane ND

629 629 ugSample 121019 0947 121019 2258 111-dichloro-22-difluoroethene ND

315 378 ugSample 121019 0947 121019 2258 111-Dichloroethane ND

315 466 ugSample 121019 0947 121019 2258 111-Dichloroethene ND

315 340 ugSample 121019 0947 121019 2258 111-Dichloropropene ND

629 629 ugSample 121019 0947 121019 2258 111-Difluoroethene ND

629 629 ugSample 121019 0947 121019 2258 1122-trichloro-11-difluoroethane ND

315 101 ugSample 121019 0947 121019 2258 1123-Trichlorobenzene ND

315 780 ugSample 121019 0947 121019 2258 1123-Trichloropropane ND

315 106 ugSample 121019 0947 121019 2258 1124-Trichlorobenzene ND

315 654 ugSample 121019 0947 121019 2258 1124-Trimethylbenzene ND

629 111 ugSample 121019 0947 121019 2258 112-Dibromo-3-Chloropropane ND

315 415 ugSample 121019 0947 121019 2258 112-Dibromoethane (EDB) ND

629 629 ugSample 121019 0947 121019 2258 112-dichloro-11-difluoroethane ND

315 554 ugSample 121019 0947 121019 2258 112-Dichlorobenzene ND

315 529 ugSample 121019 0947 121019 2258 112-Dichloroethane ND

315 315 ugSample 121019 0947 121019 2258 112-Dichloropropane ND

315 654 ugSample 121019 0947 121019 2258 1135-Trimethylbenzene ND

315 541 ugSample 121019 0947 121019 2258 113-Dichlorobenzene ND

315 352 ugSample 121019 0947 121019 2258 113-Dichloropropane ND

315 629 ugSample 121019 0947 121019 2258 114-Dichlorobenzene ND

629 642 ugSample 121019 0947 121019 2258 11-Chloro-11-difluoroethane ND

629 629 ugSample 121019 0947 121019 2258 122-dichloro-11-difluoroethylmethyl

ether

ND

315 919 ugSample 121019 0947 121019 2258 122-Dichloropropane ND

126 201 ugSample 121019 0947 121019 2258 12-Butanone (MEK) ND

629 931 ugSample 121019 0947 121019 2258 12-chloro-111444-hexafluoro-2-but

ene

ND

629 629 ugSample 121019 0947 121019 2258 12-Chloro-111-Trifluoroethane ND

315 592 ugSample 121019 0947 121019 2258 12-Chlorotoluene ND

126 289 ugSample 121019 0947 121019 2258 12-Hexanone ND

275 275 ugSample 121019 0947 121019 2258 12-MTP as HFPO 1460

315 654 ugSample 121019 0947 121019 2258 14-Chlorotoluene ND

315 843 ugSample 121019 0947 121019 2258 14-Isopropyltoluene ND

126 201 ugSample 121019 0947 121019 2258 14-Methyl-2-pentanone (MIBK) ND

126 743 ugSample 121019 0947 121019 2258 1Acetone ND

315 604 ugSample 121019 0947 121019 2258 1Benzene ND

315 441 ugSample 121019 0947 121019 2258 1Bromobenzene ND

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Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-1Client Sample ID Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromochloromethane ND 315 705 ugSample 121019 0947 121019 2258 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

315 541 ugSample 121019 0947 121019 2258 1Bromodichloromethane ND

315 957 ugSample 121019 0947 121019 2258 1Bromoform ND

629 365 ugSample 121019 0947 121019 2258 1Bromomethane ND

315 780 ugSample 121019 0947 121019 2258 1Carbon disulfide ND

315 415 ugSample 121019 0947 121019 2258 1Carbon tetrachloride ND

923 923 ugSample 121019 0947 121019 2258 1Carbonyl Difluoride ND

315 453 ugSample 121019 0947 121019 2258 1Chlorobenzene ND

315 680 ugSample 121019 0947 121019 2258 1Chlorodibromomethane ND

629 138 ugSample 121019 0947 121019 2258 1Chloroethane ND

315 365 ugSample 121019 0947 121019 2258 1Chloroform ND

629 262 ugSample 121019 0947 121019 2258 1Chloromethane ND

315 252 ugSample 121019 0947 121019 2258 1cis-12-Dichloroethene ND

315 541 ugSample 121019 0947 121019 2258 1cis-13-Dichloropropene ND

315 302 ugSample 121019 0947 121019 2258 1Dibromomethane ND

629 111 ugSample 121019 0947 121019 2258 1Dichlorodifluoromethane ND

315 516 ugSample 121019 0947 121019 2258 1Ethylbenzene ND

315 315 ugSample 121019 0947 121019 2258 1Heptafluoropropyl 1222-tetrafluoroethyl ether

149

315 831 ugSample 121019 0947 121019 2258 1Hexachlorobutadiene ND

302 302 ugSample 121019 0947 121019 2258 1HFPO dimer methyl ester as

HFPO-DA

ND

315 441 ugSample 121019 0947 121019 2258 1Isopropylbenzene ND

629 516 ugSample 121019 0947 121019 2258 1mp-Xylene ND

315 201 ugSample 121019 0947 121019 2258 1Methylene Chloride 373

315 151 ugSample 121019 0947 121019 2258 1Naphthalene ND

315 806 ugSample 121019 0947 121019 2258 1n-Butylbenzene ND

315 680 ugSample 121019 0947 121019 2258 1n-Propylbenzene ND

315 327 ugSample 121019 0947 121019 2258 1o-Xylene ND

315 617 ugSample 121019 0947 121019 2258 1sec-Butylbenzene ND

315 680 ugSample 121019 0947 121019 2258 1Styrene ND

315 554 ugSample 121019 0947 121019 2258 1tert-Butylbenzene ND

315 415 ugSample 121019 0947 121019 2258 1Tetrachloroethene ND

315 579 ugSample 121019 0947 121019 2258 1Toluene ND

315 327 ugSample 121019 0947 121019 2258 1trans-12-Dichloroethene ND

315 111 ugSample 121019 0947 121019 2258 1trans-13-Dichloropropene ND

315 227 ugSample 121019 0947 121019 2258 1Trichloroethene ND

629 604 ugSample 121019 0947 121019 2258 1Trichlorofluoromethane ND

629 151 ugSample 121019 0947 121019 2258 1Vinyl chloride ND

Unknown 318 T J ugSample 113 121019 0947 121019 2258 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1121019 2258121019 0947T JUnknown 626 ugSample 118

12-Dichloroethane-d4 (Surr) 121 70 - 160 121019 0947 121019 2258 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 106 121019 0947 121019 2258 157 - 152

Dibromofluoromethane (Surr) 109 121019 0947 121019 2258 162 - 134

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Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-1Client Sample ID Y-2976 R3 VEN DIV STACK MM18 IMPINGER 1

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)

Toluene-d8 (Surr) 89 71 - 139 121019 0947 121019 2258 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 98200 13400 6710 ugSample 121019 0947 122319 1201 2

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2770 1260 ugSample 121019 0947 122419 0117 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 40 HF SU 121719 1337 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17557-2Client Sample ID Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 305 402 ugSample 121019 0947 121019 2234 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

610 610 ugSample 121019 0947 121019 2234 111133-Pentafluorobutane ND

305 439 ugSample 121019 0947 121019 2234 1111-Trichloroethane ND

610 121 ugSample 121019 0947 121019 2234 1111-Trifluoro-22-dichloroethane ND

610 610 ugSample 121019 0947 121019 2234 1111-Trifluoroethane ND

305 585 ugSample 121019 0947 121019 2234 11122-Tetrachloroethane ND

610 341 ugSample 121019 0947 121019 2234 1112-Trichloro-122-trifluoroethane ND

610 610 ugSample 121019 0947 121019 2234 1112-trichloro-1-fluoroethane ND

305 317 ugSample 121019 0947 121019 2234 1112-Trichloroethane ND

610 305 ugSample 121019 0947 121019 2234 111-Dichloro-1-fluoroethane ND

610 610 ugSample 121019 0947 121019 2234 111-dichloro-22-difluoroethane ND

610 610 ugSample 121019 0947 121019 2234 111-dichloro-22-difluoroethene ND

305 366 ugSample 121019 0947 121019 2234 111-Dichloroethane ND

305 451 ugSample 121019 0947 121019 2234 111-Dichloroethene ND

305 329 ugSample 121019 0947 121019 2234 111-Dichloropropene ND

610 610 ugSample 121019 0947 121019 2234 111-Difluoroethene ND

610 610 ugSample 121019 0947 121019 2234 1122-trichloro-11-difluoroethane ND

305 976 ugSample 121019 0947 121019 2234 1123-Trichlorobenzene ND

305 756 ugSample 121019 0947 121019 2234 1123-Trichloropropane ND

305 102 ugSample 121019 0947 121019 2234 1124-Trichlorobenzene ND

305 634 ugSample 121019 0947 121019 2234 1124-Trimethylbenzene ND

610 107 ugSample 121019 0947 121019 2234 112-Dibromo-3-Chloropropane ND

305 402 ugSample 121019 0947 121019 2234 112-Dibromoethane (EDB) ND

610 610 ugSample 121019 0947 121019 2234 112-dichloro-11-difluoroethane ND

305 537 ugSample 121019 0947 121019 2234 112-Dichlorobenzene ND

305 512 ugSample 121019 0947 121019 2234 112-Dichloroethane ND

305 305 ugSample 121019 0947 121019 2234 112-Dichloropropane ND

305 634 ugSample 121019 0947 121019 2234 1135-Trimethylbenzene ND

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Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-2Client Sample ID Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

13-Dichlorobenzene ND 305 524 ugSample 121019 0947 121019 2234 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

305 341 ugSample 121019 0947 121019 2234 113-Dichloropropane ND

305 610 ugSample 121019 0947 121019 2234 114-Dichlorobenzene ND

610 622 ugSample 121019 0947 121019 2234 11-Chloro-11-difluoroethane ND

610 610 ugSample 121019 0947 121019 2234 122-dichloro-11-difluoroethylmethyl

ether

ND

305 890 ugSample 121019 0947 121019 2234 122-Dichloropropane ND

122 195 ugSample 121019 0947 121019 2234 12-Butanone (MEK) ND

610 903 ugSample 121019 0947 121019 2234 12-chloro-111444-hexafluoro-2-but

ene

ND

610 610 ugSample 121019 0947 121019 2234 12-Chloro-111-Trifluoroethane ND

305 573 ugSample 121019 0947 121019 2234 12-Chlorotoluene ND

122 281 ugSample 121019 0947 121019 2234 12-Hexanone ND

266 266 ugSample 121019 0947 121019 2234 12-MTP as HFPO 2430 E

305 634 ugSample 121019 0947 121019 2234 14-Chlorotoluene ND

305 817 ugSample 121019 0947 121019 2234 14-Isopropyltoluene ND

122 195 ugSample 121019 0947 121019 2234 14-Methyl-2-pentanone (MIBK) ND

122 720 ugSample 121019 0947 121019 2234 1Acetone ND

305 585 ugSample 121019 0947 121019 2234 1Benzene ND

305 427 ugSample 121019 0947 121019 2234 1Bromobenzene ND

305 683 ugSample 121019 0947 121019 2234 1Bromochloromethane ND

305 524 ugSample 121019 0947 121019 2234 1Bromodichloromethane ND

305 927 ugSample 121019 0947 121019 2234 1Bromoform ND

610 354 ugSample 121019 0947 121019 2234 1Bromomethane ND

305 756 ugSample 121019 0947 121019 2234 1Carbon disulfide ND

305 402 ugSample 121019 0947 121019 2234 1Carbon tetrachloride ND

894 894 ugSample 121019 0947 121019 2234 1Carbonyl Difluoride ND

305 439 ugSample 121019 0947 121019 2234 1Chlorobenzene ND

305 659 ugSample 121019 0947 121019 2234 1Chlorodibromomethane ND

610 134 ugSample 121019 0947 121019 2234 1Chloroethane ND

305 354 ugSample 121019 0947 121019 2234 1Chloroform ND

610 254 ugSample 121019 0947 121019 2234 1Chloromethane ND

305 244 ugSample 121019 0947 121019 2234 1cis-12-Dichloroethene ND

305 524 ugSample 121019 0947 121019 2234 1cis-13-Dichloropropene ND

305 293 ugSample 121019 0947 121019 2234 1Dibromomethane ND

610 107 ugSample 121019 0947 121019 2234 1Dichlorodifluoromethane ND

305 500 ugSample 121019 0947 121019 2234 1Ethylbenzene ND

305 305 ugSample 121019 0947 121019 2234 1Heptafluoropropyl 1222-tetrafluoroethyl ether

953

305 805 ugSample 121019 0947 121019 2234 1Hexachlorobutadiene ND

293 293 ugSample 121019 0947 121019 2234 1HFPO dimer methyl ester as

HFPO-DA

ND

305 427 ugSample 121019 0947 121019 2234 1Isopropylbenzene ND

610 500 ugSample 121019 0947 121019 2234 1mp-Xylene ND

305 195 ugSample 121019 0947 121019 2234 1Methylene Chloride 211 J

305 146 ugSample 121019 0947 121019 2234 1Naphthalene ND

305 781 ugSample 121019 0947 121019 2234 1n-Butylbenzene ND

305 659 ugSample 121019 0947 121019 2234 1n-Propylbenzene ND

Eurofins TestAmerica Knoxville

12302019Page 16 of 706111

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-2Client Sample ID Y-2977 R3 VEN DIV STACK MM18 IMPINGER 2

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

o-Xylene ND 305 317 ugSample 121019 0947 121019 2234 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

305 598 ugSample 121019 0947 121019 2234 1sec-Butylbenzene ND

305 659 ugSample 121019 0947 121019 2234 1Styrene ND

305 537 ugSample 121019 0947 121019 2234 1tert-Butylbenzene ND

305 402 ugSample 121019 0947 121019 2234 1Tetrachloroethene ND

305 561 ugSample 121019 0947 121019 2234 1Toluene ND

305 317 ugSample 121019 0947 121019 2234 1trans-12-Dichloroethene ND

305 107 ugSample 121019 0947 121019 2234 1trans-13-Dichloropropene ND

305 220 ugSample 121019 0947 121019 2234 1Trichloroethene ND

610 585 ugSample 121019 0947 121019 2234 1Trichlorofluoromethane ND

610 146 ugSample 121019 0947 121019 2234 1Vinyl chloride ND

Unknown 596 T J ugSample 113 121019 0947 121019 2234 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1121019 2234121019 0947T JUnknown 1110 ugSample 118

1121019 2234121019 0947T JUnknown 351 ugSample 122

12-Dichloroethane-d4 (Surr) 121 70 - 160 121019 0947 121019 2234 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 107 121019 0947 121019 2234 157 - 152

Dibromofluoromethane (Surr) 106 121019 0947 121019 2234 162 - 134

Toluene-d8 (Surr) 89 121019 0947 121019 2234 171 - 139

Method 8260B - Volatile Organic Compounds (GCMS) - DLRL MDL

2-MTP as HFPO 2230 533 533 ugSample 121019 0947 121119 1629 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

12-Dichloroethane-d4 (Surr) 112 70 - 160 121019 0947 121119 1629 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 108 121019 0947 121119 1629 157 - 152

Dibromofluoromethane (Surr) 97 121019 0947 121119 1629 162 - 134

Toluene-d8 (Surr) 96 121019 0947 121119 1629 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 32600 6500 3250 ugSample 121019 0947 121919 2322 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2680 1220 ugSample 121019 0947 122419 0140 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 40 HF SU 121719 1337 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Eurofins TestAmerica Knoxville

12302019Page 17 of 706112

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-3Client Sample ID Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 304 401 ugSample 121019 0947 121019 2209 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

608 608 ugSample 121019 0947 121019 2209 111133-Pentafluorobutane ND

304 438 ugSample 121019 0947 121019 2209 1111-Trichloroethane ND

608 120 ugSample 121019 0947 121019 2209 1111-Trifluoro-22-dichloroethane ND

608 608 ugSample 121019 0947 121019 2209 1111-Trifluoroethane ND

304 583 ugSample 121019 0947 121019 2209 11122-Tetrachloroethane ND

608 340 ugSample 121019 0947 121019 2209 1112-Trichloro-122-trifluoroethane ND

608 608 ugSample 121019 0947 121019 2209 1112-trichloro-1-fluoroethane ND

304 316 ugSample 121019 0947 121019 2209 1112-Trichloroethane ND

608 304 ugSample 121019 0947 121019 2209 111-Dichloro-1-fluoroethane ND

608 608 ugSample 121019 0947 121019 2209 111-dichloro-22-difluoroethane ND

608 608 ugSample 121019 0947 121019 2209 111-dichloro-22-difluoroethene ND

304 365 ugSample 121019 0947 121019 2209 111-Dichloroethane ND

304 450 ugSample 121019 0947 121019 2209 111-Dichloroethene ND

304 328 ugSample 121019 0947 121019 2209 111-Dichloropropene ND

608 608 ugSample 121019 0947 121019 2209 111-Difluoroethene ND

608 608 ugSample 121019 0947 121019 2209 1122-trichloro-11-difluoroethane ND

304 972 ugSample 121019 0947 121019 2209 1123-Trichlorobenzene ND

304 753 ugSample 121019 0947 121019 2209 1123-Trichloropropane ND

304 102 ugSample 121019 0947 121019 2209 1124-Trichlorobenzene ND

304 632 ugSample 121019 0947 121019 2209 1124-Trimethylbenzene ND

608 107 ugSample 121019 0947 121019 2209 112-Dibromo-3-Chloropropane ND

304 401 ugSample 121019 0947 121019 2209 112-Dibromoethane (EDB) ND

608 608 ugSample 121019 0947 121019 2209 112-dichloro-11-difluoroethane ND

304 535 ugSample 121019 0947 121019 2209 112-Dichlorobenzene ND

304 510 ugSample 121019 0947 121019 2209 112-Dichloroethane ND

304 304 ugSample 121019 0947 121019 2209 112-Dichloropropane ND

304 632 ugSample 121019 0947 121019 2209 1135-Trimethylbenzene ND

304 523 ugSample 121019 0947 121019 2209 113-Dichlorobenzene ND

304 340 ugSample 121019 0947 121019 2209 113-Dichloropropane ND

304 608 ugSample 121019 0947 121019 2209 114-Dichlorobenzene ND

608 620 ugSample 121019 0947 121019 2209 11-Chloro-11-difluoroethane ND

608 608 ugSample 121019 0947 121019 2209 122-dichloro-11-difluoroethylmethyl

ether

ND

304 887 ugSample 121019 0947 121019 2209 122-Dichloropropane ND

122 194 ugSample 121019 0947 121019 2209 12-Butanone (MEK) ND

608 899 ugSample 121019 0947 121019 2209 12-chloro-111444-hexafluoro-2-but

ene

ND

608 608 ugSample 121019 0947 121019 2209 12-Chloro-111-Trifluoroethane ND

304 571 ugSample 121019 0947 121019 2209 12-Chlorotoluene ND

122 280 ugSample 121019 0947 121019 2209 12-Hexanone ND

266 266 ugSample 121019 0947 121019 2209 12-MTP as HFPO 2130 E

304 632 ugSample 121019 0947 121019 2209 14-Chlorotoluene ND

304 814 ugSample 121019 0947 121019 2209 14-Isopropyltoluene ND

122 194 ugSample 121019 0947 121019 2209 14-Methyl-2-pentanone (MIBK) ND

122 717 ugSample 121019 0947 121019 2209 1Acetone ND

304 583 ugSample 121019 0947 121019 2209 1Benzene ND

304 425 ugSample 121019 0947 121019 2209 1Bromobenzene ND

Eurofins TestAmerica Knoxville

12302019Page 18 of 706113

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-3Client Sample ID Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromochloromethane ND 304 681 ugSample 121019 0947 121019 2209 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

304 523 ugSample 121019 0947 121019 2209 1Bromodichloromethane ND

304 924 ugSample 121019 0947 121019 2209 1Bromoform ND

608 352 ugSample 121019 0947 121019 2209 1Bromomethane ND

304 753 ugSample 121019 0947 121019 2209 1Carbon disulfide ND

304 401 ugSample 121019 0947 121019 2209 1Carbon tetrachloride ND

894 894 ugSample 121019 0947 121019 2209 1Carbonyl Difluoride ND

304 438 ugSample 121019 0947 121019 2209 1Chlorobenzene ND

304 656 ugSample 121019 0947 121019 2209 1Chlorodibromomethane ND

608 134 ugSample 121019 0947 121019 2209 1Chloroethane ND

304 352 ugSample 121019 0947 121019 2209 1Chloroform ND

608 253 ugSample 121019 0947 121019 2209 1Chloromethane ND

304 243 ugSample 121019 0947 121019 2209 1cis-12-Dichloroethene ND

304 523 ugSample 121019 0947 121019 2209 1cis-13-Dichloropropene ND

304 292 ugSample 121019 0947 121019 2209 1Dibromomethane ND

608 107 ugSample 121019 0947 121019 2209 1Dichlorodifluoromethane ND

304 498 ugSample 121019 0947 121019 2209 1Ethylbenzene ND

304 304 ugSample 121019 0947 121019 2209 1Heptafluoropropyl 1222-tetrafluoroethyl ether

334

304 802 ugSample 121019 0947 121019 2209 1Hexachlorobutadiene ND

292 292 ugSample 121019 0947 121019 2209 1HFPO dimer methyl ester as

HFPO-DA

ND

304 425 ugSample 121019 0947 121019 2209 1Isopropylbenzene ND

608 498 ugSample 121019 0947 121019 2209 1mp-Xylene ND

304 194 ugSample 121019 0947 121019 2209 1Methylene Chloride 202 J

304 146 ugSample 121019 0947 121019 2209 1Naphthalene ND

304 778 ugSample 121019 0947 121019 2209 1n-Butylbenzene ND

304 656 ugSample 121019 0947 121019 2209 1n-Propylbenzene ND

304 316 ugSample 121019 0947 121019 2209 1o-Xylene ND

304 595 ugSample 121019 0947 121019 2209 1sec-Butylbenzene ND

304 656 ugSample 121019 0947 121019 2209 1Styrene ND

304 535 ugSample 121019 0947 121019 2209 1tert-Butylbenzene ND

304 401 ugSample 121019 0947 121019 2209 1Tetrachloroethene ND

304 559 ugSample 121019 0947 121019 2209 1Toluene ND

304 316 ugSample 121019 0947 121019 2209 1trans-12-Dichloroethene ND

304 107 ugSample 121019 0947 121019 2209 1trans-13-Dichloropropene ND

304 219 ugSample 121019 0947 121019 2209 1Trichloroethene ND

608 583 ugSample 121019 0947 121019 2209 1Trichlorofluoromethane ND

608 146 ugSample 121019 0947 121019 2209 1Vinyl chloride ND

Unknown 411 T J ugSample 113 121019 0947 121019 2209 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1121019 2209121019 0947T JUnknown 747 ugSample 118

12-Dichloroethane-d4 (Surr) 114 70 - 160 121019 0947 121019 2209 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 107 121019 0947 121019 2209 157 - 152

Dibromofluoromethane (Surr) 103 121019 0947 121019 2209 162 - 134

Eurofins TestAmerica Knoxville

12302019Page 19 of 706114

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-3Client Sample ID Y-2978 R3 VEN DIV STACK MM18 IMPINGER 3

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)

Toluene-d8 (Surr) 92 71 - 139 121019 0947 121019 2209 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

Method 8260B - Volatile Organic Compounds (GCMS) - DLRL MDL

2-MTP as HFPO 1970 531 531 ugSample 121019 0947 121119 1653 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

12-Dichloroethane-d4 (Surr) 110 70 - 160 121019 0947 121119 1653 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 108 121019 0947 121119 1653 157 - 152

Dibromofluoromethane (Surr) 98 121019 0947 121119 1653 162 - 134

Toluene-d8 (Surr) 95 121019 0947 121119 1653 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 13600 6480 3240 ugSample 121019 0947 122019 0030 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2670 1220 ugSample 121019 0947 122419 0248 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 50 HF SU 121719 1337 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17557-4Client Sample ID Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 297 393 ugSample 121019 0947 121019 2145 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

595 595 ugSample 121019 0947 121019 2145 111133-Pentafluorobutane ND

297 428 ugSample 121019 0947 121019 2145 1111-Trichloroethane ND

595 118 ugSample 121019 0947 121019 2145 1111-Trifluoro-22-dichloroethane ND

595 595 ugSample 121019 0947 121019 2145 1111-Trifluoroethane ND

297 571 ugSample 121019 0947 121019 2145 11122-Tetrachloroethane ND

595 333 ugSample 121019 0947 121019 2145 1112-Trichloro-122-trifluoroethane ND

595 595 ugSample 121019 0947 121019 2145 1112-trichloro-1-fluoroethane ND

297 309 ugSample 121019 0947 121019 2145 1112-Trichloroethane ND

595 297 ugSample 121019 0947 121019 2145 111-Dichloro-1-fluoroethane ND

595 595 ugSample 121019 0947 121019 2145 111-dichloro-22-difluoroethane ND

595 595 ugSample 121019 0947 121019 2145 111-dichloro-22-difluoroethene ND

297 357 ugSample 121019 0947 121019 2145 111-Dichloroethane ND

297 440 ugSample 121019 0947 121019 2145 111-Dichloroethene ND

297 321 ugSample 121019 0947 121019 2145 111-Dichloropropene ND

595 595 ugSample 121019 0947 121019 2145 111-Difluoroethene ND

595 595 ugSample 121019 0947 121019 2145 1122-trichloro-11-difluoroethane ND

297 952 ugSample 121019 0947 121019 2145 1123-Trichlorobenzene ND

297 738 ugSample 121019 0947 121019 2145 1123-Trichloropropane ND

Eurofins TestAmerica Knoxville

12302019Page 20 of 706115

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-4Client Sample ID Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

124-Trichlorobenzene ND 297 100 ugSample 121019 0947 121019 2145 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

297 619 ugSample 121019 0947 121019 2145 1124-Trimethylbenzene ND

595 105 ugSample 121019 0947 121019 2145 112-Dibromo-3-Chloropropane ND

297 393 ugSample 121019 0947 121019 2145 112-Dibromoethane (EDB) ND

595 595 ugSample 121019 0947 121019 2145 112-dichloro-11-difluoroethane ND

297 524 ugSample 121019 0947 121019 2145 112-Dichlorobenzene ND

297 500 ugSample 121019 0947 121019 2145 112-Dichloroethane ND

297 297 ugSample 121019 0947 121019 2145 112-Dichloropropane ND

297 619 ugSample 121019 0947 121019 2145 1135-Trimethylbenzene ND

297 512 ugSample 121019 0947 121019 2145 113-Dichlorobenzene ND

297 333 ugSample 121019 0947 121019 2145 113-Dichloropropane ND

297 595 ugSample 121019 0947 121019 2145 114-Dichlorobenzene ND

595 607 ugSample 121019 0947 121019 2145 11-Chloro-11-difluoroethane ND

595 595 ugSample 121019 0947 121019 2145 122-dichloro-11-difluoroethylmethyl

ether

ND

297 869 ugSample 121019 0947 121019 2145 122-Dichloropropane ND

119 190 ugSample 121019 0947 121019 2145 12-Butanone (MEK) ND

595 881 ugSample 121019 0947 121019 2145 12-chloro-111444-hexafluoro-2-but

ene

ND

595 595 ugSample 121019 0947 121019 2145 12-Chloro-111-Trifluoroethane ND

297 559 ugSample 121019 0947 121019 2145 12-Chlorotoluene ND

119 274 ugSample 121019 0947 121019 2145 12-Hexanone ND

259 259 ugSample 121019 0947 121019 2145 12-MTP as HFPO 2560 E

297 619 ugSample 121019 0947 121019 2145 14-Chlorotoluene ND

297 797 ugSample 121019 0947 121019 2145 14-Isopropyltoluene ND

119 190 ugSample 121019 0947 121019 2145 14-Methyl-2-pentanone (MIBK) ND

119 702 ugSample 121019 0947 121019 2145 1Acetone ND

297 571 ugSample 121019 0947 121019 2145 1Benzene ND

297 416 ugSample 121019 0947 121019 2145 1Bromobenzene ND

297 666 ugSample 121019 0947 121019 2145 1Bromochloromethane ND

297 512 ugSample 121019 0947 121019 2145 1Bromodichloromethane ND

297 904 ugSample 121019 0947 121019 2145 1Bromoform ND

595 345 ugSample 121019 0947 121019 2145 1Bromomethane ND

297 738 ugSample 121019 0947 121019 2145 1Carbon disulfide ND

297 393 ugSample 121019 0947 121019 2145 1Carbon tetrachloride ND

872 872 ugSample 121019 0947 121019 2145 1Carbonyl Difluoride ND

297 428 ugSample 121019 0947 121019 2145 1Chlorobenzene ND

297 643 ugSample 121019 0947 121019 2145 1Chlorodibromomethane ND

595 131 ugSample 121019 0947 121019 2145 1Chloroethane ND

297 345 ugSample 121019 0947 121019 2145 1Chloroform ND

595 247 ugSample 121019 0947 121019 2145 1Chloromethane ND

297 238 ugSample 121019 0947 121019 2145 1cis-12-Dichloroethene ND

297 512 ugSample 121019 0947 121019 2145 1cis-13-Dichloropropene ND

297 286 ugSample 121019 0947 121019 2145 1Dibromomethane ND

595 105 ugSample 121019 0947 121019 2145 1Dichlorodifluoromethane ND

297 488 ugSample 121019 0947 121019 2145 1Ethylbenzene ND

297 297 ugSample 121019 0947 121019 2145 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

Eurofins TestAmerica Knoxville

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Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-4Client Sample ID Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Hexachlorobutadiene ND 297 785 ugSample 121019 0947 121019 2145 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

285 285 ugSample 121019 0947 121019 2145 1HFPO dimer methyl ester as

HFPO-DA

ND

297 416 ugSample 121019 0947 121019 2145 1Isopropylbenzene ND

595 488 ugSample 121019 0947 121019 2145 1mp-Xylene ND

297 190 ugSample 121019 0947 121019 2145 1Methylene Chloride 200 J

297 143 ugSample 121019 0947 121019 2145 1Naphthalene ND

297 762 ugSample 121019 0947 121019 2145 1n-Butylbenzene ND

297 643 ugSample 121019 0947 121019 2145 1n-Propylbenzene ND

297 309 ugSample 121019 0947 121019 2145 1o-Xylene ND

297 583 ugSample 121019 0947 121019 2145 1sec-Butylbenzene ND

297 643 ugSample 121019 0947 121019 2145 1Styrene ND

297 524 ugSample 121019 0947 121019 2145 1tert-Butylbenzene ND

297 393 ugSample 121019 0947 121019 2145 1Tetrachloroethene ND

297 547 ugSample 121019 0947 121019 2145 1Toluene ND

297 309 ugSample 121019 0947 121019 2145 1trans-12-Dichloroethene ND

297 105 ugSample 121019 0947 121019 2145 1trans-13-Dichloropropene ND

297 214 ugSample 121019 0947 121019 2145 1Trichloroethene ND

595 571 ugSample 121019 0947 121019 2145 1Trichlorofluoromethane ND

595 143 ugSample 121019 0947 121019 2145 1Vinyl chloride ND

Butanoic acid heptafluoro- sodium

salt

545 T J N ugSample 113 2218-54-4 121019 0947 121019 2145 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1121019 2145121019 0947T J NPropane 1112233-heptafluoro-3-

[(trifluoroethenyl)oxy]

1623-05-8761 ugSample 118

12-Dichloroethane-d4 (Surr) 118 70 - 160 121019 0947 121019 2145 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 110 121019 0947 121019 2145 157 - 152

Dibromofluoromethane (Surr) 107 121019 0947 121019 2145 162 - 134

Toluene-d8 (Surr) 91 121019 0947 121019 2145 171 - 139

Method 8260B - Volatile Organic Compounds (GCMS) - DLRL MDL

2-MTP as HFPO 2330 650 650 ugSample 121019 0947 121119 1718 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

12-Dichloroethane-d4 (Surr) 112 70 - 160 121019 0947 121119 1718 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 107 121019 0947 121119 1718 157 - 152

Dibromofluoromethane (Surr) 98 121019 0947 121119 1718 162 - 134

Toluene-d8 (Surr) 95 121019 0947 121119 1718 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 5730 J 6350 3170 ugSample 121019 0947 122019 0053 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2620 1190 ugSample 121019 0947 122419 0356 20Hydrogen Fluoride ND

Eurofins TestAmerica Knoxville

12302019Page 22 of 706117

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-4Client Sample ID Y-2979 R3 VEN DIV STACK MM18 IMPINGER 4

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

General ChemistryRL MDL

pH 50 HF SU 121719 1337 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17557-5Client Sample ID Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 310 409 ugSample 121019 0947 121019 2120 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

619 619 ugSample 121019 0947 121019 2120 111133-Pentafluorobutane ND

310 446 ugSample 121019 0947 121019 2120 1111-Trichloroethane ND

619 123 ugSample 121019 0947 121019 2120 1111-Trifluoro-22-dichloroethane ND

619 619 ugSample 121019 0947 121019 2120 1111-Trifluoroethane ND

310 595 ugSample 121019 0947 121019 2120 11122-Tetrachloroethane ND

619 347 ugSample 121019 0947 121019 2120 1112-Trichloro-122-trifluoroethane ND

619 619 ugSample 121019 0947 121019 2120 1112-trichloro-1-fluoroethane ND

310 322 ugSample 121019 0947 121019 2120 1112-Trichloroethane ND

619 310 ugSample 121019 0947 121019 2120 111-Dichloro-1-fluoroethane ND

619 619 ugSample 121019 0947 121019 2120 111-dichloro-22-difluoroethane ND

619 619 ugSample 121019 0947 121019 2120 111-dichloro-22-difluoroethene ND

310 372 ugSample 121019 0947 121019 2120 111-Dichloroethane ND

310 458 ugSample 121019 0947 121019 2120 111-Dichloroethene ND

310 334 ugSample 121019 0947 121019 2120 111-Dichloropropene ND

619 619 ugSample 121019 0947 121019 2120 111-Difluoroethene ND

619 619 ugSample 121019 0947 121019 2120 1122-trichloro-11-difluoroethane ND

310 991 ugSample 121019 0947 121019 2120 1123-Trichlorobenzene ND

310 768 ugSample 121019 0947 121019 2120 1123-Trichloropropane ND

310 104 ugSample 121019 0947 121019 2120 1124-Trichlorobenzene ND

310 644 ugSample 121019 0947 121019 2120 1124-Trimethylbenzene ND

619 109 ugSample 121019 0947 121019 2120 112-Dibromo-3-Chloropropane ND

310 409 ugSample 121019 0947 121019 2120 112-Dibromoethane (EDB) ND

619 619 ugSample 121019 0947 121019 2120 112-dichloro-11-difluoroethane ND

310 545 ugSample 121019 0947 121019 2120 112-Dichlorobenzene ND

310 520 ugSample 121019 0947 121019 2120 112-Dichloroethane ND

310 310 ugSample 121019 0947 121019 2120 112-Dichloropropane ND

310 644 ugSample 121019 0947 121019 2120 1135-Trimethylbenzene ND

310 533 ugSample 121019 0947 121019 2120 113-Dichlorobenzene ND

310 347 ugSample 121019 0947 121019 2120 113-Dichloropropane ND

310 619 ugSample 121019 0947 121019 2120 114-Dichlorobenzene ND

619 632 ugSample 121019 0947 121019 2120 11-Chloro-11-difluoroethane ND

619 619 ugSample 121019 0947 121019 2120 122-dichloro-11-difluoroethylmethyl

ether

ND

310 904 ugSample 121019 0947 121019 2120 122-Dichloropropane ND

124 198 ugSample 121019 0947 121019 2120 12-Butanone (MEK) ND

619 917 ugSample 121019 0947 121019 2120 12-chloro-111444-hexafluoro-2-but

ene

ND

Eurofins TestAmerica Knoxville

12302019Page 23 of 706118

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-5Client Sample ID Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

2-Chloro-111-Trifluoroethane ND 619 619 ugSample 121019 0947 121019 2120 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

310 582 ugSample 121019 0947 121019 2120 12-Chlorotoluene ND

124 285 ugSample 121019 0947 121019 2120 12-Hexanone ND

271 271 ugSample 121019 0947 121019 2120 12-MTP as HFPO 2070

310 644 ugSample 121019 0947 121019 2120 14-Chlorotoluene ND

310 830 ugSample 121019 0947 121019 2120 14-Isopropyltoluene ND

124 198 ugSample 121019 0947 121019 2120 14-Methyl-2-pentanone (MIBK) ND

124 731 ugSample 121019 0947 121019 2120 1Acetone ND

310 595 ugSample 121019 0947 121019 2120 1Benzene ND

310 434 ugSample 121019 0947 121019 2120 1Bromobenzene ND

310 694 ugSample 121019 0947 121019 2120 1Bromochloromethane ND

310 533 ugSample 121019 0947 121019 2120 1Bromodichloromethane ND

310 941 ugSample 121019 0947 121019 2120 1Bromoform ND

619 359 ugSample 121019 0947 121019 2120 1Bromomethane ND

310 768 ugSample 121019 0947 121019 2120 1Carbon disulfide ND

310 409 ugSample 121019 0947 121019 2120 1Carbon tetrachloride ND

909 909 ugSample 121019 0947 121019 2120 1Carbonyl Difluoride ND

310 446 ugSample 121019 0947 121019 2120 1Chlorobenzene ND

310 669 ugSample 121019 0947 121019 2120 1Chlorodibromomethane ND

619 136 ugSample 121019 0947 121019 2120 1Chloroethane ND

310 359 ugSample 121019 0947 121019 2120 1Chloroform ND

619 258 ugSample 121019 0947 121019 2120 1Chloromethane ND

310 248 ugSample 121019 0947 121019 2120 1cis-12-Dichloroethene ND

310 533 ugSample 121019 0947 121019 2120 1cis-13-Dichloropropene ND

310 297 ugSample 121019 0947 121019 2120 1Dibromomethane ND

619 109 ugSample 121019 0947 121019 2120 1Dichlorodifluoromethane ND

310 508 ugSample 121019 0947 121019 2120 1Ethylbenzene ND

310 310 ugSample 121019 0947 121019 2120 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

310 818 ugSample 121019 0947 121019 2120 1Hexachlorobutadiene ND

297 297 ugSample 121019 0947 121019 2120 1HFPO dimer methyl ester as

HFPO-DA

ND

310 434 ugSample 121019 0947 121019 2120 1Isopropylbenzene ND

619 508 ugSample 121019 0947 121019 2120 1mp-Xylene ND

310 198 ugSample 121019 0947 121019 2120 1Methylene Chloride ND

310 149 ugSample 121019 0947 121019 2120 1Naphthalene ND

310 793 ugSample 121019 0947 121019 2120 1n-Butylbenzene ND

310 669 ugSample 121019 0947 121019 2120 1n-Propylbenzene ND

310 322 ugSample 121019 0947 121019 2120 1o-Xylene ND

310 607 ugSample 121019 0947 121019 2120 1sec-Butylbenzene ND

310 669 ugSample 121019 0947 121019 2120 1Styrene ND

310 545 ugSample 121019 0947 121019 2120 1tert-Butylbenzene ND

310 409 ugSample 121019 0947 121019 2120 1Tetrachloroethene ND

310 570 ugSample 121019 0947 121019 2120 1Toluene ND

310 322 ugSample 121019 0947 121019 2120 1trans-12-Dichloroethene ND

310 109 ugSample 121019 0947 121019 2120 1trans-13-Dichloropropene ND

310 223 ugSample 121019 0947 121019 2120 1Trichloroethene ND

619 595 ugSample 121019 0947 121019 2120 1Trichlorofluoromethane ND

Eurofins TestAmerica Knoxville

12302019Page 24 of 706119

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-5Client Sample ID Y-2980 R3 VEN DIV STACK MM18 IMPINGER 5

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Vinyl chloride ND 619 149 ugSample 121019 0947 121019 2120 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Propene hexafluoro- 445 T J N ugSample 113 116-15-4 121019 0947 121019 2120 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1121019 2120121019 0947T JUnknown 454 ugSample 118

12-Dichloroethane-d4 (Surr) 117 70 - 160 121019 0947 121019 2120 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 108 121019 0947 121019 2120 157 - 152

Dibromofluoromethane (Surr) 105 121019 0947 121019 2120 162 - 134

Toluene-d8 (Surr) 91 121019 0947 121019 2120 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 5710 J 6610 3300 ugSample 121019 0947 122019 0116 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2730 1240 ugSample 121019 0947 122419 0419 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 50 HF SU 121719 1337 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17557-6Client Sample ID Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 301 397 ugSample 121019 0947 121019 2056 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

601 601 ugSample 121019 0947 121019 2056 111133-Pentafluorobutane ND

301 433 ugSample 121019 0947 121019 2056 1111-Trichloroethane ND

601 119 ugSample 121019 0947 121019 2056 1111-Trifluoro-22-dichloroethane ND

601 601 ugSample 121019 0947 121019 2056 1111-Trifluoroethane ND

301 577 ugSample 121019 0947 121019 2056 11122-Tetrachloroethane ND

601 337 ugSample 121019 0947 121019 2056 1112-Trichloro-122-trifluoroethane ND

601 601 ugSample 121019 0947 121019 2056 1112-trichloro-1-fluoroethane ND

301 313 ugSample 121019 0947 121019 2056 1112-Trichloroethane ND

601 301 ugSample 121019 0947 121019 2056 111-Dichloro-1-fluoroethane ND

601 601 ugSample 121019 0947 121019 2056 111-dichloro-22-difluoroethane ND

601 601 ugSample 121019 0947 121019 2056 111-dichloro-22-difluoroethene ND

301 361 ugSample 121019 0947 121019 2056 111-Dichloroethane ND

301 445 ugSample 121019 0947 121019 2056 111-Dichloroethene ND

301 325 ugSample 121019 0947 121019 2056 111-Dichloropropene ND

601 601 ugSample 121019 0947 121019 2056 111-Difluoroethene ND

601 601 ugSample 121019 0947 121019 2056 1122-trichloro-11-difluoroethane ND

301 962 ugSample 121019 0947 121019 2056 1123-Trichlorobenzene ND

301 745 ugSample 121019 0947 121019 2056 1123-Trichloropropane ND

Eurofins TestAmerica Knoxville

12302019Page 25 of 706120

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-6Client Sample ID Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

124-Trichlorobenzene ND 301 101 ugSample 121019 0947 121019 2056 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

301 625 ugSample 121019 0947 121019 2056 1124-Trimethylbenzene ND

601 106 ugSample 121019 0947 121019 2056 112-Dibromo-3-Chloropropane ND

301 397 ugSample 121019 0947 121019 2056 112-Dibromoethane (EDB) ND

601 601 ugSample 121019 0947 121019 2056 112-dichloro-11-difluoroethane ND

301 529 ugSample 121019 0947 121019 2056 112-Dichlorobenzene ND

301 505 ugSample 121019 0947 121019 2056 112-Dichloroethane ND

301 301 ugSample 121019 0947 121019 2056 112-Dichloropropane ND

301 625 ugSample 121019 0947 121019 2056 1135-Trimethylbenzene ND

301 517 ugSample 121019 0947 121019 2056 113-Dichlorobenzene ND

301 337 ugSample 121019 0947 121019 2056 113-Dichloropropane ND

301 601 ugSample 121019 0947 121019 2056 114-Dichlorobenzene ND

601 613 ugSample 121019 0947 121019 2056 11-Chloro-11-difluoroethane ND

601 601 ugSample 121019 0947 121019 2056 122-dichloro-11-difluoroethylmethyl

ether

ND

301 878 ugSample 121019 0947 121019 2056 122-Dichloropropane ND

120 192 ugSample 121019 0947 121019 2056 12-Butanone (MEK) ND

601 890 ugSample 121019 0947 121019 2056 12-chloro-111444-hexafluoro-2-but

ene

ND

601 601 ugSample 121019 0947 121019 2056 12-Chloro-111-Trifluoroethane ND

301 565 ugSample 121019 0947 121019 2056 12-Chlorotoluene ND

120 277 ugSample 121019 0947 121019 2056 12-Hexanone ND

263 263 ugSample 121019 0947 121019 2056 12-MTP as HFPO 2550 E

301 625 ugSample 121019 0947 121019 2056 14-Chlorotoluene ND

301 806 ugSample 121019 0947 121019 2056 14-Isopropyltoluene ND

120 192 ugSample 121019 0947 121019 2056 14-Methyl-2-pentanone (MIBK) ND

120 709 ugSample 121019 0947 121019 2056 1Acetone ND

301 577 ugSample 121019 0947 121019 2056 1Benzene ND

301 421 ugSample 121019 0947 121019 2056 1Bromobenzene ND

301 673 ugSample 121019 0947 121019 2056 1Bromochloromethane ND

301 517 ugSample 121019 0947 121019 2056 1Bromodichloromethane ND

301 914 ugSample 121019 0947 121019 2056 1Bromoform ND

601 349 ugSample 121019 0947 121019 2056 1Bromomethane ND

301 745 ugSample 121019 0947 121019 2056 1Carbon disulfide ND

301 397 ugSample 121019 0947 121019 2056 1Carbon tetrachloride ND

879 879 ugSample 121019 0947 121019 2056 1Carbonyl Difluoride ND

301 433 ugSample 121019 0947 121019 2056 1Chlorobenzene ND

301 649 ugSample 121019 0947 121019 2056 1Chlorodibromomethane ND

601 132 ugSample 121019 0947 121019 2056 1Chloroethane ND

301 349 ugSample 121019 0947 121019 2056 1Chloroform ND

601 250 ugSample 121019 0947 121019 2056 1Chloromethane ND

301 240 ugSample 121019 0947 121019 2056 1cis-12-Dichloroethene ND

301 517 ugSample 121019 0947 121019 2056 1cis-13-Dichloropropene ND

301 289 ugSample 121019 0947 121019 2056 1Dibromomethane ND

601 106 ugSample 121019 0947 121019 2056 1Dichlorodifluoromethane ND

301 493 ugSample 121019 0947 121019 2056 1Ethylbenzene ND

301 301 ugSample 121019 0947 121019 2056 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

Eurofins TestAmerica Knoxville

12302019Page 26 of 706121

Client Sample ResultsJob ID 140-17557-1Client Chemours Company FC LLC The

ProjectSite VEN Stack - MM-18

Lab Sample ID 140-17557-6Client Sample ID Y-2981 R3 VEN DIV STACK MM18 IMPINGER 6

Matrix AirDate Collected 120419 0000Date Received 120719 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Hexachlorobutadiene ND 301 794 ugSample 121019 0947 121019 2056 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

289 289 ugSample 121019 0947 121019 2056 1HFPO dimer methyl ester as

HFPO-DA

ND

301 421 ugSample 121019 0947 121019 2056 1Isopropylbenzene ND

601 493 ugSample 121019 0947 121019 2056 1mp-Xylene ND

301 192 ugSample 121019 0947 121019 2056 1Methylene Chloride ND

301 144 ugSample 121019 0947 121019 2056 1Naphthalene ND

301 770 ugSample 121019 0947 121019 2056 1n-Butylbenzene ND

301 649 ugSample 121019 0947 121019 2056 1n-Propylbenzene ND

301 313 ugSample 121019 0947 121019 2056 1o-Xylene ND

301 589 ugSample 121019 0947 121019 2056 1sec-Butylbenzene ND

301 649 ugSample 121019 0947 121019 2056 1Styrene ND

301 529 ugSample 121019 0947 121019 2056 1tert-Butylbenzene ND

301 397 ugSample 121019 0947 121019 2056 1Tetrachloroethene ND

301 553 ugSample 121019 0947 121019 2056 1Toluene ND

301 313 ugSample 121019 0947 121019 2056 1trans-12-Dichloroethene ND

301 106 ugSample 121019 0947 121019 2056 1trans-13-Dichloropropene ND

301 216 ugSample 121019 0947 121019 2056 1Trichloroethene ND

601 577 ugSample 121019 0947 121019 2056 1Trichlorofluoromethane ND

601 144 ugSample 121019 0947 121019 2056 1Vinyl chloride ND

Propene hexafluoro- 408 T J N ugSample 113 116-15-4 121019 0947 121019 2056 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

1121019 2056121019 0947T JUnknown 418 ugSample 118

12-Dichloroethane-d4 (Surr) 116 70 - 160 121019 0947 121019 2056 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 121019 0947 121019 2056 157 - 152

Dibromofluoromethane (Surr) 104 121019 0947 121019 2056 162 - 134

Toluene-d8 (Surr) 92 121019 0947 121019 2056 171 - 139

Method 8260B - Volatile Organic Compounds (GCMS) - DLRL MDL

2-MTP as HFPO 2350 657 657 ugSample 121019 0947 121119 1742 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

12-Dichloroethane-d4 (Surr) 112 70 - 160 121019 0947 121119 1742 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 107 121019 0947 121119 1742 157 - 152

Dibromofluoromethane (Surr) 98 121019 0947 121119 1742 162 - 134

Toluene-d8 (Surr) 96 121019 0947 121119 1742 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 4990 J 6410 3210 ugSample 121019 0947 122019 0138 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2650 1200 ugSample 121019 0947 122419 0442 20Hydrogen Fluoride ND

General ChemistryRL MDL

pH 50 HF SU 121719 1339 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Eurofins TestAmerica Knoxville

12302019Page 27 of 706122

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17557-1ProjectSite VEN Stack - MM-18

Method 8260B - Volatile Organic Compounds (GCMS)Prep MeOH Prep

2501112-Tetrachloroethane ugSample

Analyte UnitsMDLRL

0330

50011133-Pentafluorobutane ugSample0500

250111-Trichloroethane ugSample0360

500111-Trifluoro-22-dichloroethane ugSample0990

500111-Trifluoroethane ugSample0500

2501122-Tetrachloroethane ugSample0480

500112-Trichloro-122-trifluoroethane ugSample0280

500112-trichloro-1-fluoroethane ugSample0500

250112-Trichloroethane ugSample0260

50011-Dichloro-1-fluoroethane ugSample250

50011-dichloro-22-difluoroethane ugSample0500

50011-dichloro-22-difluoroethene ugSample0500

25011-Dichloroethane ugSample0300

25011-Dichloroethene ugSample0370

25011-Dichloropropene ugSample0270

50011-Difluoroethene ugSample500

500122-trichloro-11-difluoroethane ugSample0500

250123-Trichlorobenzene ugSample0800

250123-Trichloropropane ugSample0620

250124-Trichlorobenzene ugSample0840

250124-Trimethylbenzene ugSample0520

50012-Dibromo-3-Chloropropane ugSample0880

25012-Dibromoethane (EDB) ugSample0330

50012-dichloro-11-difluoroethane ugSample0500

25012-Dichlorobenzene ugSample0440

25012-Dichloroethane ugSample0420

25012-Dichloropropane ugSample0250

250135-Trimethylbenzene ugSample0520

25013-Dichlorobenzene ugSample0430

25013-Dichloropropane ugSample0280

25014-Dichlorobenzene ugSample0500

5001-Chloro-11-difluoroethane ugSample0510

50022-dichloro-11-difluoroethylmethyl ether ugSample0500

25022-Dichloropropane ugSample0730

1002-Butanone (MEK) ugSample160

5002-chloro-111444-hexafluoro-2-butene ugSample0740

5002-Chloro-111-Trifluoroethane ugSample0500

2502-Chlorotoluene ugSample0470

1002-Hexanone ugSample230

2502-MTP as HFPO ugSample250

2504-Chlorotoluene ugSample0520

2504-Isopropyltoluene ugSample0670

1004-Methyl-2-pentanone (MIBK) ugSample160

100Acetone ugSample590

250Benzene ugSample0480

250Bromobenzene ugSample0350

250Bromochloromethane ugSample0560

250Bromodichloromethane ugSample0430

250Bromoform ugSample0760

500Bromomethane ugSample290

250Carbon disulfide ugSample0620

250Carbon tetrachloride ugSample0330

Eurofins TestAmerica Knoxville

12302019Page 28 of 706123

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17557-1ProjectSite VEN Stack - MM-18

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)Prep MeOH Prep

100Carbonyl Difluoride ugSample

Analyte UnitsMDLRL

100

250Chlorobenzene ugSample0360

250Chlorodibromomethane ugSample0540

500Chloroethane ugSample110

250Chloroform ugSample0290

500Chloromethane ugSample208

250cis-12-Dichloroethene ugSample0200

250cis-13-Dichloropropene ugSample0430

250Dibromomethane ugSample0240

500Dichlorodifluoromethane ugSample0880

250Ethylbenzene ugSample0410

250Heptafluoropropyl 1222-tetrafluoroethyl ether ugSample250

250Hexachlorobutadiene ugSample0660

250HFPO dimer methyl ester as HFPO-DA ugSample250

250Isopropylbenzene ugSample0350

500mp-Xylene ugSample0410

250Methylene Chloride ugSample160

250Naphthalene ugSample120

250n-Butylbenzene ugSample0640

250n-Propylbenzene ugSample0540

250o-Xylene ugSample0260

250sec-Butylbenzene ugSample0490

250Styrene ugSample0540

250tert-Butylbenzene ugSample0440

250Tetrachloroethene ugSample0330

250Toluene ugSample0460

250trans-12-Dichloroethene ugSample0260

250trans-13-Dichloropropene ugSample0880

250Trichloroethene ugSample0180

500Trichlorofluoromethane ugSample0480

500Vinyl chloride ugSample120

Method 9056 - Anions Ion ChromatographyPrep MeOH Prep

110Hydrogen Fluoride ugSample

Analyte UnitsMDLRL

500

1000Total Fluorine ugSample500

Eurofins TestAmerica Knoxville

12302019Page 29 of 706124

ANALYTICAL REPORTJob Number 140-17462-1

Job Description VEN MM-18 Field QC

Contract Number LBIO-67048

ForChemours Company FC LLC The

co AECOMSabre Building Suite 300

4051 Ogletown RoadNewark DE 19713

Attention Michael Aucoin

_____________________________________________

Approved for releaseCourtney M AdkinsProject Manager II12232019 302 PM

Courtney M Adkins Project Manager II5815 Middlebrook Pike Knoxville TN 37921

(865)291-3000 courtneyadkinstestamericainccom

12232019

This report may not be reproduced except in full and with written approval from the laboratory For questions please contact the Project Manager atthe e-mail address or telephone number listed on this page

The test results in this report relate only to the samples as received by the laboratory and will meet all requirements of the methodology with anyexceptions noted This report shall not be reproduced except in full without the express written approval of the laboratory All questions should bedirected to the Eurofins TestAmerica Project Manager

This report has been electronically signed and authorized by the signatory Electronic signature is intended to be the legally binding equivalent of atraditionally handwritten signature

Eurofins TestAmerica Knoxville

5815 Middlebrook Pike Knoxville TN 37921

Tel (865) 291-3000 Fax (865) 584-4315 wwwtestamericainccom

12232019Page 1 of 820125

Table of ContentsCover Title Page 1

Data Summaries 5

Definitions 5

Method Summary 6

Sample Summary 7

Case Narrative 8

QC Association 10

Client Sample Results 13

Default Detection Limits 35

Surrogate Summary 37

QC Sample Results 39

Chronicle 46

Certification Summary 54

Manual Integration Summary 56

Organic Sample Data 69

GCMS VOA 69

Method 8260B 69Method 8260B QC Summary 70Method 8260B Sample Data 83Standards Data 179

Method 8260B ICAL Data 179Method 8260B CCAL Data 281

Raw QC Data 329Method 8260B Tune Data 329Method 8260B Blank Data 345Method 8260B LCSLCSD Data 355

12232019Page 2 of 820126

Table of ContentsMethod 8260B MSMSD Data 368

Method 8260B Run Logs 376Method 8260B Prep Data 389

HPLCIC 392

Method 9056 392Method 9056 QC Summary 393Method 9056 Sample Data 396Standards Data 423

Method 9056 ICAL Data 423Method 9056 CCAL Data 450

Raw QC Data 493Method 9056 Blank Data 493Method 9056 LCSLCSD Data 519

Method 9056 Run Logs 525Method 9056 Prep Data 539

Method 9056A Total Halogens 541Method 9056A Total Halogens QC Summary 542Method 9056A Total Halogens Sample Data 545Standards Data 580

Method 9056A Total Halogens ICAL Data 580Method 9056A Total Halogens CCAL Data 605

Raw QC Data 624Method 9056A Total Halogens Blank Data 624Method 9056A Total Halogens LCSLCSD Data 641

Method 9056A Total Halogens Run Logs 649Method 9056A Total Halogens Prep Data 658

12232019Page 3 of 820127

Table of ContentsLCMS 662

Method DV-LC-0012 662Method DV-LC-0012 QC Summary 663Method DV-LC-0012 Sample Data 668Standards Data 704

Method DV-LC-0012 ICAL Data 704Method DV-LC-0012 CCAL Data 751

Raw QC Data 763Method DV-LC-0012 Tune Data 763Method DV-LC-0012 Blank Data 768Method DV-LC-0012 LCSLCSD Data 772

Method DV-LC-0012 Run Logs 785Method DV-LC-0012 Prep Data 788

Inorganic Sample Data 796

General Chemistry Data 796

Gen Chem Cover Page 797

Gen Chem Sample Data 798

Gen Chem QC Data 807Gen Chem ICVCCV 807

Gen Chem MDL 808

Gen Chem Analysis Run Log 809

Gen Chem Prep Data 810

Gen Chem Raw Data 811

Shipping and Receiving Documents 813

Client Chain of Custody 814

12232019Page 4 of 820128

DefinitionsGlossaryJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Qualifiers

GCMS VOAQualifier Description

LCS or LCSD is outside acceptance limits

Qualifier

B Compound was found in the blank and sample

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

GCMS VOA TICsQualifier Description

J Indicates an Estimated Value for TICs

Qualifier

N Presumptive evidence of material

T Result is a tentatively identified compound (TIC) and an estimated value

HPLCICQualifier Description

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

Qualifier

LCMSQualifier Description

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value

Qualifier

General ChemistryQualifier Description

HF Field parameter with a holding time of 15 minutes Test performed by laboratory at clients request

Qualifier

GlossaryThese commonly used abbreviations may or may not be present in this report

curren Listed under the D column to designate that the result is reported on a dry weight basis

Abbreviation

R Percent Recovery

CFL Contains Free Liquid

CNF Contains No Free Liquid

DER Duplicate Error Ratio (normalized absolute difference)

Dil Fac Dilution Factor

DL Detection Limit (DoDDOE)

DL RA RE IN Indicates a Dilution Re-analysis Re-extraction or additional Initial metalsanion analysis of the sample

DLC Decision Level Concentration (Radiochemistry)

EDL Estimated Detection Limit (Dioxin)

LOD Limit of Detection (DoDDOE)

LOQ Limit of Quantitation (DoDDOE)

MDA Minimum Detectable Activity (Radiochemistry)

MDC Minimum Detectable Concentration (Radiochemistry)

MDL Method Detection Limit

ML Minimum Level (Dioxin)

NC Not Calculated

ND Not Detected at the reporting limit (or MDL or EDL if shown)

PQL Practical Quantitation Limit

QC Quality Control

RER Relative Error Ratio (Radiochemistry)

RL Reporting Limit or Requested Limit (Radiochemistry)

RPD Relative Percent Difference a measure of the relative difference between two points

TEF Toxicity Equivalent Factor (Dioxin)

TEQ Toxicity Equivalent Quotient (Dioxin)

Eurofins TestAmerica Knoxville

12232019Page 5 of 820129

Method SummaryJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Method Method Description LaboratoryProtocol

SW8468260B Volatile Organic Compounds (GCMS) TAL KNX

SW8469056 Anions Ion Chromatography TAL KNX

SW8468321A PFOA and PFOS TAL DEN

SW8469041A pH TAL KNX

SW8465050 Bomb Preparation Method for Solid Waste TAL KNX

NoneMeOH Prep Methanol Impinger Preparation TAL KNX

TAL SOPNone Leaching Procedure TAL DEN

Protocol References

None = None

SW846 = Test Methods For Evaluating Solid Waste PhysicalChemical Methods Third Edition November 1986 And Its Updates

TAL SOP = TestAmerica Laboratories Standard Operating Procedure

Laboratory References

TAL DEN = Eurofins TestAmerica Denver 4955 Yarrow Street Arvada CO 80002 TEL (303)736-0100

TAL KNX = Eurofins TestAmerica Knoxville 5815 Middlebrook Pike Knoxville TN 37921 TEL (865)291-3000

Eurofins TestAmerica Knoxville

12232019Page 6 of 820130

Sample SummaryJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID Client Sample ID ReceivedCollectedMatrix Asset ID

140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1

BT

Air 112219 0000 112519 0800

140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2

BT

Air 112219 0000 112519 0800

140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3

BT

Air 112219 0000 112519 0800

140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4

BT

Air 112219 0000 112519 0800

140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5

BT

Air 112219 0000 112519 0800

140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6

BT

Air 112219 0000 112519 0800

140-17462-7 A-5786 QC MEOH RB Air 112219 0000 112519 0800

140-17462-8 A-5787 QC MEOH TB Air 112219 0000 112519 0800

140-17462-9 A-5788 QC MEOH PB Air 112219 0000 112519 0800

Eurofins TestAmerica Knoxville

12232019Page 7 of 820131

Job Narrative140-17462-1

Sample Receipt

The samples were received on November 25 2019 at 800 AM in good condition and properly preserved The temperature of the cooler at receipt was 33ordm C

GCMS VOA

Impinger Sample Preparation and Analysis Impinger samples were analyzed for the volatile organic target analytes by purge and trap GCMS using Eurofins TestAmerica Knoxville standard operating procedure KNOX-MS-0015 based on the following method

middot SW-846 8260B ldquoVolatile Organic Compounds by Gas Chromatography Mass Spectrometry (GCMS)rdquo

Each sample is prepared by adding a known amount of sample to the purge water in a purge and trap vessel and spiking with internal standards surrogates and matrix spike analytes (as needed) Volatile compounds are introduced into the gas chromatograph by the purge and trap method The components are separated using the chromatograph and detected using a mass spectrometer which provides both qualitative and quantitative information

Impinger sample results were calculated using the following equation

Concentration μgsample = (C times DF times W times Vt) (Va)WhereC = On-column concentration μgLDF = Dilution factorW = Volume of water purged LVt = Methanol extract final volume μL Va = Volume of extract analyzed microL

Method 8260B The following analyte(s) recovered outside control limits but within marginal exceedance limits for the LCS associated with batch 140-35880 Trichlorofluoromethane This is not indicative of a systematic control problem because these were random marginal exceedances Qualified results have been reported

No additional analytical or quality issues were noted other than those described above or in the DefinitionsGlossary page

LCMS No analytical or quality issues were noted other than those described in the DefinitionsGlossary page

General Chemistry Total Chlorine The samples were prepared for total chlorine using SOP number KNOX-WC-0016 (based on ASTM Method E442 and SW-846 Method 5050) The sample is oxidized by combustion in an oxygen flask at atmospheric pressure or a bomb containing oxygen under pressure The liberated halogen compounds are absorbed primarily as halides in a sodium carbonatesodium bicarbonate buffer solution The combustion products are collected by repeated rinsing of the combustion apparatus and analyzed by ion chromatography in accordance with SOP KNOX- WC-0005 (based on SW-846 Method 9056) The results are calculated using the following equation

C = [(Ccom times Vcom) W] times 1000 gKg

WhereC = Concentration of analyte in the sample mgKgCcom = Concentration of analyte in the combustate mgLVcom = Total volume of combustate LW = Weight of sample combusted g

Anions in Impinger Solutions Anions are is determined in accordance to SOP KNOX-WC-0005 (based on methods 3000A and 9056) The samples were diluted a minimum of 120 in ion chromatography solvent buffer solution to reduce the methanol concentration before injection Buffer concentrate was added until the pH was 10 Samples are diluted with ion chromatography eluate solution to bring the concentrations within the calibration range when necessary Higher dilutions are applied as necessary

An aliquot of prepared sample is introduced into the ion chromatograph Anions are identified based on their retention times as compared to those of known standards Quantification is accomplished by measuring the peak response and comparing it to a calibration curve generated from known standards

12232019Page 8 of 820132

The pH of all samples were tested with pH paper QC consisted of initial CCV and LCS which also serve as initial calibration duplicate analysis for every 10 samples and closing CCV A certified thermometer was used to check the ambient temperature

No additional analytical or quality issues were noted other than those described above or in the DefinitionsGlossary page

Organic Prep No analytical or quality issues were noted other than those described in the DefinitionsGlossary page

No analytical or quality issues were noted other than those described in the DefinitionsGlossary page

12232019Page 9 of 820133

QC Association SummaryJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

GCMS VOA

Prep Batch 35705

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air MeOH Prep140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air MeOH Prep140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air MeOH Prep140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air MeOH Prep140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air MeOH Prep140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air MeOH Prep140-17462-7 A-5786 QC MEOH RB TotalNA

Air MeOH Prep140-17462-8 A-5787 QC MEOH TB TotalNA

Air MeOH Prep140-17462-9 A-5788 QC MEOH PB TotalNA

Air MeOH PrepMB 140-357052-A Method Blank TotalNA

Air MeOH PrepLCS 140-357051-A Lab Control Sample TotalNA

Air MeOH Prep140-17462-2 MS A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air MeOH Prep140-17462-2 MSD A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Analysis Batch 35880

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8260B 35705140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air 8260B 35705140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 8260B 35705140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air 8260B 35705140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air 8260B 35705140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air 8260B 35705140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air 8260B 35705140-17462-7 A-5786 QC MEOH RB TotalNA

Air 8260B 35705140-17462-8 A-5787 QC MEOH TB TotalNA

Air 8260B 35705140-17462-9 A-5788 QC MEOH PB TotalNA

Air 8260B 35705MB 140-357052-A Method Blank TotalNA

Air 8260B 35705LCS 140-357051-A Lab Control Sample TotalNA

Air 8260B 35705LCS 140-357051-A Lab Control Sample TotalNA

Air 8260B 35705140-17462-2 MS A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 8260B 35705140-17462-2 MSD A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

HPLCIC

Prep Batch 35705

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air MeOH Prep140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air MeOH Prep140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air MeOH Prep140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air MeOH Prep140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air MeOH Prep140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air MeOH Prep140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air MeOH Prep140-17462-7 A-5786 QC MEOH RB TotalNA

Air MeOH Prep140-17462-8 A-5787 QC MEOH TB TotalNA

Air MeOH Prep140-17462-9 A-5788 QC MEOH PB TotalNA

Air MeOH PrepMB 140-3570514-A Method Blank TotalNA

Air MeOH PrepMB 140-3570514-B Method Blank TotalNA

Air MeOH PrepLCS 140-3570515-A Lab Control Sample TotalNA

Air MeOH PrepLCS 140-3570515-B Lab Control Sample TotalNA

Air MeOH PrepLCSD 140-3570516-A Lab Control Sample Dup TotalNA

Air MeOH PrepLCSD 140-3570516-B Lab Control Sample Dup TotalNA

Eurofins TestAmerica Knoxville

12232019Page 10 of 820134

QC Association SummaryJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

HPLCIC

Prep Batch 35762

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 5050 35705140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air 5050 35705140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 5050 35705140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air 5050 35705140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air 5050 35705140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air 5050 35705140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air 5050 35705140-17462-7 A-5786 QC MEOH RB TotalNA

Air 5050 35705140-17462-8 A-5787 QC MEOH TB TotalNA

Air 5050 35705140-17462-9 A-5788 QC MEOH PB TotalNA

Air 5050 35705MB 140-3570514-B Method Blank TotalNA

Air 5050 35705LCS 140-3570515-B Lab Control Sample TotalNA

Air 5050 35705LCSD 140-3570516-B Lab Control Sample Dup TotalNA

Analysis Batch 36121

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35762140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air 9056 35762140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 9056 35762140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air 9056 35762140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air 9056 35762140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air 9056 35762140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air 9056 35762140-17462-7 A-5786 QC MEOH RB TotalNA

Air 9056 35762140-17462-8 A-5787 QC MEOH TB TotalNA

Air 9056 35762140-17462-9 A-5788 QC MEOH PB TotalNA

Air 9056 35762MB 140-3570514-B Method Blank TotalNA

Air 9056 35762LCS 140-3570515-B Lab Control Sample TotalNA

Air 9056 35762LCSD 140-3570516-B Lab Control Sample Dup TotalNA

Analysis Batch 36210

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9056 35705140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air 9056 35705140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 9056 35705140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air 9056 35705140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air 9056 35705140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air 9056 35705140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air 9056 35705140-17462-7 A-5786 QC MEOH RB TotalNA

Air 9056 35705140-17462-8 A-5787 QC MEOH TB TotalNA

Air 9056 35705140-17462-9 A-5788 QC MEOH PB TotalNA

Air 9056 35705MB 140-3570514-A Method Blank TotalNA

Air 9056 35705LCS 140-3570515-A Lab Control Sample TotalNA

Air 9056 35705LCSD 140-3570516-A Lab Control Sample Dup TotalNA

LCMS

Analysis Batch 464589

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321ADLCK 280-46458913 Lab Control Sample TotalNA

Eurofins TestAmerica Knoxville

12232019Page 11 of 820135

QC Association SummaryJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

LCMS

Prep Batch 479505

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air None140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air None140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air None140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air None140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air None140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air None140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air None140-17462-7 A-5786 QC MEOH RB TotalNA

Air None140-17462-8 A-5787 QC MEOH TB TotalNA

Air None140-17462-9 A-5788 QC MEOH PB TotalNA

Air NoneMB 280-4795051-A Method Blank TotalNA

Air NoneLCS 280-4795052-A Lab Control Sample TotalNA

Air NoneLCSD 280-4795053-A Lab Control Sample Dup TotalNA

Analysis Batch 479931

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 8321A 479505140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air 8321A 479505140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 8321A 479505140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air 8321A 479505140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air 8321A 479505140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air 8321A 479505140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air 8321A 479505140-17462-7 A-5786 QC MEOH RB TotalNA

Air 8321A 479505140-17462-8 A-5787 QC MEOH TB TotalNA

Air 8321A 479505140-17462-9 A-5788 QC MEOH PB TotalNA

Air 8321A 479505MB 280-4795051-A Method Blank TotalNA

Air 8321A 479505LCS 280-4795052-A Lab Control Sample TotalNA

Air 8321A 479505LCSD 280-4795053-A Lab Control Sample Dup TotalNA

General Chemistry

Analysis Batch 36086

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Air 9041A140-17462-1 A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BTTotalNA

Air 9041A140-17462-2 A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BTTotalNA

Air 9041A140-17462-3 A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BTTotalNA

Air 9041A140-17462-4 A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BTTotalNA

Air 9041A140-17462-5 A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BTTotalNA

Air 9041A140-17462-6 A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BTTotalNA

Air 9041A140-17462-7 A-5786 QC MEOH RB TotalNA

Air 9041A140-17462-8 A-5787 QC MEOH TB TotalNA

Air 9041A140-17462-9 A-5788 QC MEOH PB TotalNA

Air 9041ALCS 140-360862 Lab Control Sample TotalNA

Eurofins TestAmerica Knoxville

12232019Page 12 of 820136

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-1Client Sample ID A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 287 379 ugSample 112919 1045 120619 1517 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

574 574 ugSample 112919 1045 120619 1517 111133-Pentafluorobutane ND

287 413 ugSample 112919 1045 120619 1517 1111-Trichloroethane ND

574 114 ugSample 112919 1045 120619 1517 1111-Trifluoro-22-dichloroethane ND

574 574 ugSample 112919 1045 120619 1517 1111-Trifluoroethane ND

287 551 ugSample 112919 1045 120619 1517 11122-Tetrachloroethane ND

574 321 ugSample 112919 1045 120619 1517 1112-Trichloro-122-trifluoroethane ND

574 574 ugSample 112919 1045 120619 1517 1112-trichloro-1-fluoroethane ND

287 298 ugSample 112919 1045 120619 1517 1112-Trichloroethane ND

574 287 ugSample 112919 1045 120619 1517 111-Dichloro-1-fluoroethane ND

574 574 ugSample 112919 1045 120619 1517 111-dichloro-22-difluoroethane ND

574 574 ugSample 112919 1045 120619 1517 111-dichloro-22-difluoroethene ND

287 344 ugSample 112919 1045 120619 1517 111-Dichloroethane ND

287 425 ugSample 112919 1045 120619 1517 111-Dichloroethene ND

287 310 ugSample 112919 1045 120619 1517 111-Dichloropropene ND

574 574 ugSample 112919 1045 120619 1517 111-Difluoroethene ND

574 574 ugSample 112919 1045 120619 1517 1122-trichloro-11-difluoroethane ND

287 918 ugSample 112919 1045 120619 1517 1123-Trichlorobenzene ND

287 712 ugSample 112919 1045 120619 1517 1123-Trichloropropane ND

287 964 ugSample 112919 1045 120619 1517 1124-Trichlorobenzene ND

287 597 ugSample 112919 1045 120619 1517 1124-Trimethylbenzene ND

574 101 ugSample 112919 1045 120619 1517 112-Dibromo-3-Chloropropane ND

287 379 ugSample 112919 1045 120619 1517 112-Dibromoethane (EDB) ND

574 574 ugSample 112919 1045 120619 1517 112-dichloro-11-difluoroethane ND

287 505 ugSample 112919 1045 120619 1517 112-Dichlorobenzene ND

287 482 ugSample 112919 1045 120619 1517 112-Dichloroethane ND

287 287 ugSample 112919 1045 120619 1517 112-Dichloropropane ND

287 597 ugSample 112919 1045 120619 1517 1135-Trimethylbenzene ND

287 494 ugSample 112919 1045 120619 1517 113-Dichlorobenzene ND

287 321 ugSample 112919 1045 120619 1517 113-Dichloropropane ND

287 574 ugSample 112919 1045 120619 1517 114-Dichlorobenzene ND

574 585 ugSample 112919 1045 120619 1517 11-Chloro-11-difluoroethane ND

574 574 ugSample 112919 1045 120619 1517 122-dichloro-11-difluoroethylmethyl

ether

ND

287 838 ugSample 112919 1045 120619 1517 122-Dichloropropane ND

115 184 ugSample 112919 1045 120619 1517 12-Butanone (MEK) ND

574 849 ugSample 112919 1045 120619 1517 12-chloro-111444-hexafluoro-2-but

ene

ND

574 574 ugSample 112919 1045 120619 1517 12-Chloro-111-Trifluoroethane ND

287 540 ugSample 112919 1045 120619 1517 12-Chlorotoluene ND

115 264 ugSample 112919 1045 120619 1517 12-Hexanone ND

251 251 ugSample 112919 1045 120619 1517 12-MTP as HFPO ND

287 597 ugSample 112919 1045 120619 1517 14-Chlorotoluene ND

287 769 ugSample 112919 1045 120619 1517 14-Isopropyltoluene ND

115 184 ugSample 112919 1045 120619 1517 14-Methyl-2-pentanone (MIBK) ND

115 677 ugSample 112919 1045 120619 1517 1Acetone ND

287 551 ugSample 112919 1045 120619 1517 1Benzene ND

287 402 ugSample 112919 1045 120619 1517 1Bromobenzene ND

Eurofins TestAmerica Knoxville

12232019Page 13 of 820137

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-1Client Sample ID A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromochloromethane ND 287 643 ugSample 112919 1045 120619 1517 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

287 494 ugSample 112919 1045 120619 1517 1Bromodichloromethane ND

287 872 ugSample 112919 1045 120619 1517 1Bromoform ND

574 333 ugSample 112919 1045 120619 1517 1Bromomethane ND

287 712 ugSample 112919 1045 120619 1517 1Carbon disulfide ND

287 379 ugSample 112919 1045 120619 1517 1Carbon tetrachloride ND

843 843 ugSample 112919 1045 120619 1517 1Carbonyl Difluoride ND

287 413 ugSample 112919 1045 120619 1517 1Chlorobenzene ND

287 620 ugSample 112919 1045 120619 1517 1Chlorodibromomethane ND

574 126 ugSample 112919 1045 120619 1517 1Chloroethane ND

287 333 ugSample 112919 1045 120619 1517 1Chloroform ND

574 239 ugSample 112919 1045 120619 1517 1Chloromethane ND

287 230 ugSample 112919 1045 120619 1517 1cis-12-Dichloroethene ND

287 494 ugSample 112919 1045 120619 1517 1cis-13-Dichloropropene ND

287 275 ugSample 112919 1045 120619 1517 1Dibromomethane ND

574 101 ugSample 112919 1045 120619 1517 1Dichlorodifluoromethane ND

287 471 ugSample 112919 1045 120619 1517 1Ethylbenzene ND

287 287 ugSample 112919 1045 120619 1517 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

287 758 ugSample 112919 1045 120619 1517 1Hexachlorobutadiene ND

275 275 ugSample 112919 1045 120619 1517 1HFPO dimer methyl ester as

HFPO-DA

ND

287 402 ugSample 112919 1045 120619 1517 1Isopropylbenzene ND

574 471 ugSample 112919 1045 120619 1517 1mp-Xylene ND

287 184 ugSample 112919 1045 120619 1517 1Methylene Chloride ND

287 138 ugSample 112919 1045 120619 1517 1Naphthalene ND

287 735 ugSample 112919 1045 120619 1517 1n-Butylbenzene ND

287 620 ugSample 112919 1045 120619 1517 1n-Propylbenzene ND

287 298 ugSample 112919 1045 120619 1517 1o-Xylene ND

287 562 ugSample 112919 1045 120619 1517 1sec-Butylbenzene ND

287 620 ugSample 112919 1045 120619 1517 1Styrene ND

287 505 ugSample 112919 1045 120619 1517 1tert-Butylbenzene ND

287 379 ugSample 112919 1045 120619 1517 1Tetrachloroethene ND

287 528 ugSample 112919 1045 120619 1517 1Toluene ND

287 298 ugSample 112919 1045 120619 1517 1trans-12-Dichloroethene ND

287 101 ugSample 112919 1045 120619 1517 1trans-13-Dichloropropene ND

287 207 ugSample 112919 1045 120619 1517 1Trichloroethene ND

574 551 ugSample 112919 1045 120619 1517 1Trichlorofluoromethane ND

574 138 ugSample 112919 1045 120619 1517 1Vinyl chloride ND

Tentatively Identified Compound None ugSample 112919 1045 120619 1517 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1045 120619 1517 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 112919 1045 120619 1517 157 - 152

Dibromofluoromethane (Surr) 104 112919 1045 120619 1517 162 - 134

Toluene-d8 (Surr) 97 112919 1045 120619 1517 171 - 139

Eurofins TestAmerica Knoxville

12232019Page 14 of 820138

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-1Client Sample ID A-5780 QC VEN DIV STACK MM18 IMPINGER 1 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 11800 6120 3060 ugSample 112919 1045 121319 2153 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2530 1150 ugSample 112919 1045 121819 1319 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1037 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 130 50 - 200 120419 1005 120819 1037 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-2Client Sample ID A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 299 394 ugSample 112919 1045 120619 1542 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

598 598 ugSample 112919 1045 120619 1542 111133-Pentafluorobutane ND

299 430 ugSample 112919 1045 120619 1542 1111-Trichloroethane ND

598 118 ugSample 112919 1045 120619 1542 1111-Trifluoro-22-dichloroethane ND

598 598 ugSample 112919 1045 120619 1542 1111-Trifluoroethane ND

299 574 ugSample 112919 1045 120619 1542 11122-Tetrachloroethane ND

598 335 ugSample 112919 1045 120619 1542 1112-Trichloro-122-trifluoroethane ND

598 598 ugSample 112919 1045 120619 1542 1112-trichloro-1-fluoroethane ND

299 311 ugSample 112919 1045 120619 1542 1112-Trichloroethane ND

598 299 ugSample 112919 1045 120619 1542 111-Dichloro-1-fluoroethane ND

598 598 ugSample 112919 1045 120619 1542 111-dichloro-22-difluoroethane ND

598 598 ugSample 112919 1045 120619 1542 111-dichloro-22-difluoroethene ND

299 359 ugSample 112919 1045 120619 1542 111-Dichloroethane ND

299 442 ugSample 112919 1045 120619 1542 111-Dichloroethene ND

299 323 ugSample 112919 1045 120619 1542 111-Dichloropropene ND

598 598 ugSample 112919 1045 120619 1542 111-Difluoroethene ND

598 598 ugSample 112919 1045 120619 1542 1122-trichloro-11-difluoroethane ND

299 956 ugSample 112919 1045 120619 1542 1123-Trichlorobenzene ND

299 741 ugSample 112919 1045 120619 1542 1123-Trichloropropane ND

299 100 ugSample 112919 1045 120619 1542 1124-Trichlorobenzene ND

299 621 ugSample 112919 1045 120619 1542 1124-Trimethylbenzene ND

598 105 ugSample 112919 1045 120619 1542 112-Dibromo-3-Chloropropane ND

299 394 ugSample 112919 1045 120619 1542 112-Dibromoethane (EDB) ND

598 598 ugSample 112919 1045 120619 1542 112-dichloro-11-difluoroethane ND

299 526 ugSample 112919 1045 120619 1542 112-Dichlorobenzene ND

299 502 ugSample 112919 1045 120619 1542 112-Dichloroethane ND

Eurofins TestAmerica Knoxville

12232019Page 15 of 820139

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-2Client Sample ID A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

12-Dichloropropane ND 299 299 ugSample 112919 1045 120619 1542 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

299 621 ugSample 112919 1045 120619 1542 1135-Trimethylbenzene ND

299 514 ugSample 112919 1045 120619 1542 113-Dichlorobenzene ND

299 335 ugSample 112919 1045 120619 1542 113-Dichloropropane ND

299 598 ugSample 112919 1045 120619 1542 114-Dichlorobenzene ND

598 610 ugSample 112919 1045 120619 1542 11-Chloro-11-difluoroethane ND

598 598 ugSample 112919 1045 120619 1542 122-dichloro-11-difluoroethylmethyl

ether

ND

299 872 ugSample 112919 1045 120619 1542 122-Dichloropropane ND

120 191 ugSample 112919 1045 120619 1542 12-Butanone (MEK) ND

598 884 ugSample 112919 1045 120619 1542 12-chloro-111444-hexafluoro-2-but

ene

ND

598 598 ugSample 112919 1045 120619 1542 12-Chloro-111-Trifluoroethane ND

299 562 ugSample 112919 1045 120619 1542 12-Chlorotoluene ND

120 275 ugSample 112919 1045 120619 1542 12-Hexanone ND

261 261 ugSample 112919 1045 120619 1542 12-MTP as HFPO ND

299 621 ugSample 112919 1045 120619 1542 14-Chlorotoluene ND

299 801 ugSample 112919 1045 120619 1542 14-Isopropyltoluene ND

120 191 ugSample 112919 1045 120619 1542 14-Methyl-2-pentanone (MIBK) ND

120 705 ugSample 112919 1045 120619 1542 1Acetone ND

299 574 ugSample 112919 1045 120619 1542 1Benzene ND

299 418 ugSample 112919 1045 120619 1542 1Bromobenzene ND

299 669 ugSample 112919 1045 120619 1542 1Bromochloromethane ND

299 514 ugSample 112919 1045 120619 1542 1Bromodichloromethane ND

299 908 ugSample 112919 1045 120619 1542 1Bromoform ND

598 347 ugSample 112919 1045 120619 1542 1Bromomethane ND

299 741 ugSample 112919 1045 120619 1542 1Carbon disulfide ND

299 394 ugSample 112919 1045 120619 1542 1Carbon tetrachloride ND

879 879 ugSample 112919 1045 120619 1542 1Carbonyl Difluoride ND

299 430 ugSample 112919 1045 120619 1542 1Chlorobenzene ND

299 645 ugSample 112919 1045 120619 1542 1Chlorodibromomethane ND

598 131 ugSample 112919 1045 120619 1542 1Chloroethane ND

299 347 ugSample 112919 1045 120619 1542 1Chloroform ND

598 249 ugSample 112919 1045 120619 1542 1Chloromethane ND

299 239 ugSample 112919 1045 120619 1542 1cis-12-Dichloroethene ND

299 514 ugSample 112919 1045 120619 1542 1cis-13-Dichloropropene ND

299 287 ugSample 112919 1045 120619 1542 1Dibromomethane ND

598 105 ugSample 112919 1045 120619 1542 1Dichlorodifluoromethane ND

299 490 ugSample 112919 1045 120619 1542 1Ethylbenzene ND

299 299 ugSample 112919 1045 120619 1542 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

299 789 ugSample 112919 1045 120619 1542 1Hexachlorobutadiene ND

287 287 ugSample 112919 1045 120619 1542 1HFPO dimer methyl ester as

HFPO-DA

ND

299 418 ugSample 112919 1045 120619 1542 1Isopropylbenzene ND

598 490 ugSample 112919 1045 120619 1542 1mp-Xylene ND

299 191 ugSample 112919 1045 120619 1542 1Methylene Chloride ND

299 143 ugSample 112919 1045 120619 1542 1Naphthalene ND

Eurofins TestAmerica Knoxville

12232019Page 16 of 820140

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-2Client Sample ID A-5781 QC VEN DIV STACK MM18 IMPINGER 2 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

n-Butylbenzene ND 299 765 ugSample 112919 1045 120619 1542 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

299 645 ugSample 112919 1045 120619 1542 1n-Propylbenzene ND

299 311 ugSample 112919 1045 120619 1542 1o-Xylene ND

299 586 ugSample 112919 1045 120619 1542 1sec-Butylbenzene ND

299 645 ugSample 112919 1045 120619 1542 1Styrene ND

299 526 ugSample 112919 1045 120619 1542 1tert-Butylbenzene ND

299 394 ugSample 112919 1045 120619 1542 1Tetrachloroethene ND

299 550 ugSample 112919 1045 120619 1542 1Toluene ND

299 311 ugSample 112919 1045 120619 1542 1trans-12-Dichloroethene ND

299 105 ugSample 112919 1045 120619 1542 1trans-13-Dichloropropene ND

299 215 ugSample 112919 1045 120619 1542 1Trichloroethene ND

598 574 ugSample 112919 1045 120619 1542 1Trichlorofluoromethane ND

598 143 ugSample 112919 1045 120619 1542 1Vinyl chloride ND

Cyclohexane 433 T J N ugSample 442 110-82-7 112919 1045 120619 1542 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1045 120619 1542 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1045 120619 1542 157 - 152

Dibromofluoromethane (Surr) 105 112919 1045 120619 1542 162 - 134

Toluene-d8 (Surr) 96 112919 1045 120619 1542 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 14800 6370 3190 ugSample 112919 1045 121319 2214 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2630 1200 ugSample 112919 1045 121819 1340 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1040 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 131 50 - 200 120419 1005 120819 1040 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-3Client Sample ID A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 291 384 ugSample 112919 1045 120619 1606 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

582 582 ugSample 112919 1045 120619 1606 111133-Pentafluorobutane ND

Eurofins TestAmerica Knoxville

12232019Page 17 of 820141

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-3Client Sample ID A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

111-Trichloroethane ND 291 419 ugSample 112919 1045 120619 1606 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

582 115 ugSample 112919 1045 120619 1606 1111-Trifluoro-22-dichloroethane ND

582 582 ugSample 112919 1045 120619 1606 1111-Trifluoroethane ND

291 559 ugSample 112919 1045 120619 1606 11122-Tetrachloroethane ND

582 326 ugSample 112919 1045 120619 1606 1112-Trichloro-122-trifluoroethane ND

582 582 ugSample 112919 1045 120619 1606 1112-trichloro-1-fluoroethane ND

291 303 ugSample 112919 1045 120619 1606 1112-Trichloroethane ND

582 291 ugSample 112919 1045 120619 1606 111-Dichloro-1-fluoroethane ND

582 582 ugSample 112919 1045 120619 1606 111-dichloro-22-difluoroethane ND

582 582 ugSample 112919 1045 120619 1606 111-dichloro-22-difluoroethene ND

291 349 ugSample 112919 1045 120619 1606 111-Dichloroethane ND

291 431 ugSample 112919 1045 120619 1606 111-Dichloroethene ND

291 314 ugSample 112919 1045 120619 1606 111-Dichloropropene ND

582 582 ugSample 112919 1045 120619 1606 111-Difluoroethene ND

582 582 ugSample 112919 1045 120619 1606 1122-trichloro-11-difluoroethane ND

291 932 ugSample 112919 1045 120619 1606 1123-Trichlorobenzene ND

291 722 ugSample 112919 1045 120619 1606 1123-Trichloropropane ND

291 978 ugSample 112919 1045 120619 1606 1124-Trichlorobenzene ND

291 606 ugSample 112919 1045 120619 1606 1124-Trimethylbenzene ND

582 102 ugSample 112919 1045 120619 1606 112-Dibromo-3-Chloropropane ND

291 384 ugSample 112919 1045 120619 1606 112-Dibromoethane (EDB) ND

582 582 ugSample 112919 1045 120619 1606 112-dichloro-11-difluoroethane ND

291 512 ugSample 112919 1045 120619 1606 112-Dichlorobenzene ND

291 489 ugSample 112919 1045 120619 1606 112-Dichloroethane ND

291 291 ugSample 112919 1045 120619 1606 112-Dichloropropane ND

291 606 ugSample 112919 1045 120619 1606 1135-Trimethylbenzene ND

291 501 ugSample 112919 1045 120619 1606 113-Dichlorobenzene ND

291 326 ugSample 112919 1045 120619 1606 113-Dichloropropane ND

291 582 ugSample 112919 1045 120619 1606 114-Dichlorobenzene ND

582 594 ugSample 112919 1045 120619 1606 11-Chloro-11-difluoroethane ND

582 582 ugSample 112919 1045 120619 1606 122-dichloro-11-difluoroethylmethyl

ether

ND

291 850 ugSample 112919 1045 120619 1606 122-Dichloropropane ND

116 186 ugSample 112919 1045 120619 1606 12-Butanone (MEK) ND

582 862 ugSample 112919 1045 120619 1606 12-chloro-111444-hexafluoro-2-but

ene

ND

582 582 ugSample 112919 1045 120619 1606 12-Chloro-111-Trifluoroethane ND

291 547 ugSample 112919 1045 120619 1606 12-Chlorotoluene ND

116 268 ugSample 112919 1045 120619 1606 12-Hexanone ND

254 254 ugSample 112919 1045 120619 1606 12-MTP as HFPO ND

291 606 ugSample 112919 1045 120619 1606 14-Chlorotoluene ND

291 780 ugSample 112919 1045 120619 1606 14-Isopropyltoluene ND

116 186 ugSample 112919 1045 120619 1606 14-Methyl-2-pentanone (MIBK) ND

116 687 ugSample 112919 1045 120619 1606 1Acetone ND

291 559 ugSample 112919 1045 120619 1606 1Benzene ND

291 408 ugSample 112919 1045 120619 1606 1Bromobenzene ND

291 652 ugSample 112919 1045 120619 1606 1Bromochloromethane ND

291 501 ugSample 112919 1045 120619 1606 1Bromodichloromethane ND

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12232019Page 18 of 820142

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-3Client Sample ID A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromoform ND 291 885 ugSample 112919 1045 120619 1606 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

582 338 ugSample 112919 1045 120619 1606 1Bromomethane ND

291 722 ugSample 112919 1045 120619 1606 1Carbon disulfide ND

291 384 ugSample 112919 1045 120619 1606 1Carbon tetrachloride ND

850 850 ugSample 112919 1045 120619 1606 1Carbonyl Difluoride ND

291 419 ugSample 112919 1045 120619 1606 1Chlorobenzene ND

291 629 ugSample 112919 1045 120619 1606 1Chlorodibromomethane ND

582 128 ugSample 112919 1045 120619 1606 1Chloroethane ND

291 338 ugSample 112919 1045 120619 1606 1Chloroform ND

582 242 ugSample 112919 1045 120619 1606 1Chloromethane ND

291 233 ugSample 112919 1045 120619 1606 1cis-12-Dichloroethene ND

291 501 ugSample 112919 1045 120619 1606 1cis-13-Dichloropropene ND

291 280 ugSample 112919 1045 120619 1606 1Dibromomethane ND

582 102 ugSample 112919 1045 120619 1606 1Dichlorodifluoromethane ND

291 477 ugSample 112919 1045 120619 1606 1Ethylbenzene ND

291 291 ugSample 112919 1045 120619 1606 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

291 769 ugSample 112919 1045 120619 1606 1Hexachlorobutadiene ND

279 279 ugSample 112919 1045 120619 1606 1HFPO dimer methyl ester as

HFPO-DA

ND

291 408 ugSample 112919 1045 120619 1606 1Isopropylbenzene ND

582 477 ugSample 112919 1045 120619 1606 1mp-Xylene ND

291 186 ugSample 112919 1045 120619 1606 1Methylene Chloride ND

291 140 ugSample 112919 1045 120619 1606 1Naphthalene ND

291 745 ugSample 112919 1045 120619 1606 1n-Butylbenzene ND

291 629 ugSample 112919 1045 120619 1606 1n-Propylbenzene ND

291 303 ugSample 112919 1045 120619 1606 1o-Xylene ND

291 571 ugSample 112919 1045 120619 1606 1sec-Butylbenzene ND

291 629 ugSample 112919 1045 120619 1606 1Styrene ND

291 512 ugSample 112919 1045 120619 1606 1tert-Butylbenzene ND

291 384 ugSample 112919 1045 120619 1606 1Tetrachloroethene ND

291 536 ugSample 112919 1045 120619 1606 1Toluene ND

291 303 ugSample 112919 1045 120619 1606 1trans-12-Dichloroethene ND

291 102 ugSample 112919 1045 120619 1606 1trans-13-Dichloropropene ND

291 210 ugSample 112919 1045 120619 1606 1Trichloroethene ND

582 559 ugSample 112919 1045 120619 1606 1Trichlorofluoromethane ND

582 140 ugSample 112919 1045 120619 1606 1Vinyl chloride ND

Cyclohexane 424 T J N ugSample 442 110-82-7 112919 1045 120619 1606 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1045 120619 1606 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 112919 1045 120619 1606 157 - 152

Dibromofluoromethane (Surr) 104 112919 1045 120619 1606 162 - 134

Toluene-d8 (Surr) 98 112919 1045 120619 1606 171 - 139

Eurofins TestAmerica Knoxville

12232019Page 19 of 820143

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-3Client Sample ID A-5782 QC VEN DIV STACK MM18 IMPINGER 3 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 6110 J 6210 3110 ugSample 112919 1045 121319 2235 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2560 1160 ugSample 112919 1045 121819 1401 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1044 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 129 50 - 200 120419 1005 120819 1044 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1501 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-4Client Sample ID A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 304 402 ugSample 112919 1045 120619 1631 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

608 608 ugSample 112919 1045 120619 1631 111133-Pentafluorobutane ND

304 438 ugSample 112919 1045 120619 1631 1111-Trichloroethane ND

608 120 ugSample 112919 1045 120619 1631 1111-Trifluoro-22-dichloroethane ND

608 608 ugSample 112919 1045 120619 1631 1111-Trifluoroethane ND

304 584 ugSample 112919 1045 120619 1631 11122-Tetrachloroethane ND

608 341 ugSample 112919 1045 120619 1631 1112-Trichloro-122-trifluoroethane ND

608 608 ugSample 112919 1045 120619 1631 1112-trichloro-1-fluoroethane ND

304 316 ugSample 112919 1045 120619 1631 1112-Trichloroethane ND

608 304 ugSample 112919 1045 120619 1631 111-Dichloro-1-fluoroethane ND

608 608 ugSample 112919 1045 120619 1631 111-dichloro-22-difluoroethane ND

608 608 ugSample 112919 1045 120619 1631 111-dichloro-22-difluoroethene ND

304 365 ugSample 112919 1045 120619 1631 111-Dichloroethane ND

304 450 ugSample 112919 1045 120619 1631 111-Dichloroethene ND

304 329 ugSample 112919 1045 120619 1631 111-Dichloropropene ND

608 608 ugSample 112919 1045 120619 1631 111-Difluoroethene ND

608 608 ugSample 112919 1045 120619 1631 1122-trichloro-11-difluoroethane ND

304 974 ugSample 112919 1045 120619 1631 1123-Trichlorobenzene ND

304 754 ugSample 112919 1045 120619 1631 1123-Trichloropropane ND

304 102 ugSample 112919 1045 120619 1631 1124-Trichlorobenzene ND

304 633 ugSample 112919 1045 120619 1631 1124-Trimethylbenzene ND

608 107 ugSample 112919 1045 120619 1631 112-Dibromo-3-Chloropropane ND

304 402 ugSample 112919 1045 120619 1631 112-Dibromoethane (EDB) ND

608 608 ugSample 112919 1045 120619 1631 112-dichloro-11-difluoroethane ND

304 535 ugSample 112919 1045 120619 1631 112-Dichlorobenzene ND

304 511 ugSample 112919 1045 120619 1631 112-Dichloroethane ND

Eurofins TestAmerica Knoxville

12232019Page 20 of 820144

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-4Client Sample ID A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

12-Dichloropropane ND 304 304 ugSample 112919 1045 120619 1631 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

304 633 ugSample 112919 1045 120619 1631 1135-Trimethylbenzene ND

304 523 ugSample 112919 1045 120619 1631 113-Dichlorobenzene ND

304 341 ugSample 112919 1045 120619 1631 113-Dichloropropane ND

304 608 ugSample 112919 1045 120619 1631 114-Dichlorobenzene ND

608 621 ugSample 112919 1045 120619 1631 11-Chloro-11-difluoroethane ND

608 608 ugSample 112919 1045 120619 1631 122-dichloro-11-difluoroethylmethyl

ether

ND

304 888 ugSample 112919 1045 120619 1631 122-Dichloropropane ND

122 195 ugSample 112919 1045 120619 1631 12-Butanone (MEK) ND

608 901 ugSample 112919 1045 120619 1631 12-chloro-111444-hexafluoro-2-but

ene

ND

608 608 ugSample 112919 1045 120619 1631 12-Chloro-111-Trifluoroethane ND

304 572 ugSample 112919 1045 120619 1631 12-Chlorotoluene ND

122 280 ugSample 112919 1045 120619 1631 12-Hexanone ND

266 266 ugSample 112919 1045 120619 1631 12-MTP as HFPO ND

304 633 ugSample 112919 1045 120619 1631 14-Chlorotoluene ND

304 815 ugSample 112919 1045 120619 1631 14-Isopropyltoluene ND

122 195 ugSample 112919 1045 120619 1631 14-Methyl-2-pentanone (MIBK) ND

122 718 ugSample 112919 1045 120619 1631 1Acetone ND

304 584 ugSample 112919 1045 120619 1631 1Benzene ND

304 426 ugSample 112919 1045 120619 1631 1Bromobenzene ND

304 681 ugSample 112919 1045 120619 1631 1Bromochloromethane ND

304 523 ugSample 112919 1045 120619 1631 1Bromodichloromethane ND

304 925 ugSample 112919 1045 120619 1631 1Bromoform ND

608 353 ugSample 112919 1045 120619 1631 1Bromomethane ND

304 754 ugSample 112919 1045 120619 1631 1Carbon disulfide ND

304 402 ugSample 112919 1045 120619 1631 1Carbon tetrachloride ND

894 894 ugSample 112919 1045 120619 1631 1Carbonyl Difluoride ND

304 438 ugSample 112919 1045 120619 1631 1Chlorobenzene ND

304 657 ugSample 112919 1045 120619 1631 1Chlorodibromomethane ND

608 134 ugSample 112919 1045 120619 1631 1Chloroethane ND

304 353 ugSample 112919 1045 120619 1631 1Chloroform ND

608 253 ugSample 112919 1045 120619 1631 1Chloromethane ND

304 243 ugSample 112919 1045 120619 1631 1cis-12-Dichloroethene ND

304 523 ugSample 112919 1045 120619 1631 1cis-13-Dichloropropene ND

304 292 ugSample 112919 1045 120619 1631 1Dibromomethane ND

608 107 ugSample 112919 1045 120619 1631 1Dichlorodifluoromethane ND

304 499 ugSample 112919 1045 120619 1631 1Ethylbenzene ND

304 304 ugSample 112919 1045 120619 1631 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

304 803 ugSample 112919 1045 120619 1631 1Hexachlorobutadiene ND

292 292 ugSample 112919 1045 120619 1631 1HFPO dimer methyl ester as

HFPO-DA

ND

304 426 ugSample 112919 1045 120619 1631 1Isopropylbenzene ND

608 499 ugSample 112919 1045 120619 1631 1mp-Xylene ND

304 195 ugSample 112919 1045 120619 1631 1Methylene Chloride ND

304 146 ugSample 112919 1045 120619 1631 1Naphthalene ND

Eurofins TestAmerica Knoxville

12232019Page 21 of 820145

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-4Client Sample ID A-5783 QC VEN DIV STACK MM18 IMPINGER 4 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

n-Butylbenzene ND 304 779 ugSample 112919 1045 120619 1631 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

304 657 ugSample 112919 1045 120619 1631 1n-Propylbenzene ND

304 316 ugSample 112919 1045 120619 1631 1o-Xylene ND

304 596 ugSample 112919 1045 120619 1631 1sec-Butylbenzene ND

304 657 ugSample 112919 1045 120619 1631 1Styrene ND

304 535 ugSample 112919 1045 120619 1631 1tert-Butylbenzene ND

304 402 ugSample 112919 1045 120619 1631 1Tetrachloroethene ND

304 560 ugSample 112919 1045 120619 1631 1Toluene ND

304 316 ugSample 112919 1045 120619 1631 1trans-12-Dichloroethene ND

304 107 ugSample 112919 1045 120619 1631 1trans-13-Dichloropropene ND

304 219 ugSample 112919 1045 120619 1631 1Trichloroethene ND

608 584 ugSample 112919 1045 120619 1631 1Trichlorofluoromethane ND

608 146 ugSample 112919 1045 120619 1631 1Vinyl chloride ND

Cyclohexane 454 T J N ugSample 442 110-82-7 112919 1045 120619 1631 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 118 70 - 160 112919 1045 120619 1631 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 110 112919 1045 120619 1631 157 - 152

Dibromofluoromethane (Surr) 104 112919 1045 120619 1631 162 - 134

Toluene-d8 (Surr) 96 112919 1045 120619 1631 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 4170 J 6490 3250 ugSample 112919 1045 121319 2256 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2680 1220 ugSample 112919 1045 121819 1421 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1047 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 126 50 - 200 120419 1005 120819 1047 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1503 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-5Client Sample ID A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 269 355 ugSample 112919 1045 120619 1655 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

538 538 ugSample 112919 1045 120619 1655 111133-Pentafluorobutane ND

Eurofins TestAmerica Knoxville

12232019Page 22 of 820146

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-5Client Sample ID A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

111-Trichloroethane ND 269 387 ugSample 112919 1045 120619 1655 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

538 106 ugSample 112919 1045 120619 1655 1111-Trifluoro-22-dichloroethane ND

538 538 ugSample 112919 1045 120619 1655 1111-Trifluoroethane ND

269 516 ugSample 112919 1045 120619 1655 11122-Tetrachloroethane ND

538 301 ugSample 112919 1045 120619 1655 1112-Trichloro-122-trifluoroethane ND

538 538 ugSample 112919 1045 120619 1655 1112-trichloro-1-fluoroethane ND

269 280 ugSample 112919 1045 120619 1655 1112-Trichloroethane ND

538 269 ugSample 112919 1045 120619 1655 111-Dichloro-1-fluoroethane ND

538 538 ugSample 112919 1045 120619 1655 111-dichloro-22-difluoroethane ND

538 538 ugSample 112919 1045 120619 1655 111-dichloro-22-difluoroethene ND

269 323 ugSample 112919 1045 120619 1655 111-Dichloroethane ND

269 398 ugSample 112919 1045 120619 1655 111-Dichloroethene ND

269 290 ugSample 112919 1045 120619 1655 111-Dichloropropene ND

538 538 ugSample 112919 1045 120619 1655 111-Difluoroethene ND

538 538 ugSample 112919 1045 120619 1655 1122-trichloro-11-difluoroethane ND

269 860 ugSample 112919 1045 120619 1655 1123-Trichlorobenzene ND

269 667 ugSample 112919 1045 120619 1655 1123-Trichloropropane ND

269 903 ugSample 112919 1045 120619 1655 1124-Trichlorobenzene ND

269 559 ugSample 112919 1045 120619 1655 1124-Trimethylbenzene ND

538 946 ugSample 112919 1045 120619 1655 112-Dibromo-3-Chloropropane ND

269 355 ugSample 112919 1045 120619 1655 112-Dibromoethane (EDB) ND

538 538 ugSample 112919 1045 120619 1655 112-dichloro-11-difluoroethane ND

269 473 ugSample 112919 1045 120619 1655 112-Dichlorobenzene ND

269 452 ugSample 112919 1045 120619 1655 112-Dichloroethane ND

269 269 ugSample 112919 1045 120619 1655 112-Dichloropropane ND

269 559 ugSample 112919 1045 120619 1655 1135-Trimethylbenzene ND

269 462 ugSample 112919 1045 120619 1655 113-Dichlorobenzene ND

269 301 ugSample 112919 1045 120619 1655 113-Dichloropropane ND

269 538 ugSample 112919 1045 120619 1655 114-Dichlorobenzene ND

538 548 ugSample 112919 1045 120619 1655 11-Chloro-11-difluoroethane ND

538 538 ugSample 112919 1045 120619 1655 122-dichloro-11-difluoroethylmethyl

ether

ND

269 785 ugSample 112919 1045 120619 1655 122-Dichloropropane ND

108 172 ugSample 112919 1045 120619 1655 12-Butanone (MEK) ND

538 796 ugSample 112919 1045 120619 1655 12-chloro-111444-hexafluoro-2-but

ene

ND

538 538 ugSample 112919 1045 120619 1655 12-Chloro-111-Trifluoroethane ND

269 505 ugSample 112919 1045 120619 1655 12-Chlorotoluene ND

108 247 ugSample 112919 1045 120619 1655 12-Hexanone ND

235 235 ugSample 112919 1045 120619 1655 12-MTP as HFPO ND

269 559 ugSample 112919 1045 120619 1655 14-Chlorotoluene ND

269 720 ugSample 112919 1045 120619 1655 14-Isopropyltoluene ND

108 172 ugSample 112919 1045 120619 1655 14-Methyl-2-pentanone (MIBK) ND

108 634 ugSample 112919 1045 120619 1655 1Acetone ND

269 516 ugSample 112919 1045 120619 1655 1Benzene ND

269 376 ugSample 112919 1045 120619 1655 1Bromobenzene ND

269 602 ugSample 112919 1045 120619 1655 1Bromochloromethane ND

269 462 ugSample 112919 1045 120619 1655 1Bromodichloromethane ND

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12232019Page 23 of 820147

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-5Client Sample ID A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Bromoform ND 269 817 ugSample 112919 1045 120619 1655 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

538 312 ugSample 112919 1045 120619 1655 1Bromomethane ND

269 667 ugSample 112919 1045 120619 1655 1Carbon disulfide ND

269 355 ugSample 112919 1045 120619 1655 1Carbon tetrachloride ND

791 791 ugSample 112919 1045 120619 1655 1Carbonyl Difluoride ND

269 387 ugSample 112919 1045 120619 1655 1Chlorobenzene ND

269 581 ugSample 112919 1045 120619 1655 1Chlorodibromomethane ND

538 118 ugSample 112919 1045 120619 1655 1Chloroethane ND

269 312 ugSample 112919 1045 120619 1655 1Chloroform ND

538 224 ugSample 112919 1045 120619 1655 1Chloromethane ND

269 215 ugSample 112919 1045 120619 1655 1cis-12-Dichloroethene ND

269 462 ugSample 112919 1045 120619 1655 1cis-13-Dichloropropene ND

269 258 ugSample 112919 1045 120619 1655 1Dibromomethane ND

538 946 ugSample 112919 1045 120619 1655 1Dichlorodifluoromethane ND

269 441 ugSample 112919 1045 120619 1655 1Ethylbenzene ND

269 269 ugSample 112919 1045 120619 1655 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

269 710 ugSample 112919 1045 120619 1655 1Hexachlorobutadiene ND

258 258 ugSample 112919 1045 120619 1655 1HFPO dimer methyl ester as

HFPO-DA

ND

269 376 ugSample 112919 1045 120619 1655 1Isopropylbenzene ND

538 441 ugSample 112919 1045 120619 1655 1mp-Xylene ND

269 172 ugSample 112919 1045 120619 1655 1Methylene Chloride ND

269 129 ugSample 112919 1045 120619 1655 1Naphthalene ND

269 688 ugSample 112919 1045 120619 1655 1n-Butylbenzene ND

269 581 ugSample 112919 1045 120619 1655 1n-Propylbenzene ND

269 280 ugSample 112919 1045 120619 1655 1o-Xylene ND

269 527 ugSample 112919 1045 120619 1655 1sec-Butylbenzene ND

269 581 ugSample 112919 1045 120619 1655 1Styrene ND

269 473 ugSample 112919 1045 120619 1655 1tert-Butylbenzene ND

269 355 ugSample 112919 1045 120619 1655 1Tetrachloroethene ND

269 495 ugSample 112919 1045 120619 1655 1Toluene ND

269 280 ugSample 112919 1045 120619 1655 1trans-12-Dichloroethene ND

269 946 ugSample 112919 1045 120619 1655 1trans-13-Dichloropropene ND

269 194 ugSample 112919 1045 120619 1655 1Trichloroethene ND

538 516 ugSample 112919 1045 120619 1655 1Trichlorofluoromethane ND

538 129 ugSample 112919 1045 120619 1655 1Vinyl chloride ND

Cyclohexane 436 T J N ugSample 442 110-82-7 112919 1045 120619 1655 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 118 70 - 160 112919 1045 120619 1655 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1045 120619 1655 157 - 152

Dibromofluoromethane (Surr) 103 112919 1045 120619 1655 162 - 134

Toluene-d8 (Surr) 96 112919 1045 120619 1655 171 - 139

Eurofins TestAmerica Knoxville

12232019Page 24 of 820148

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-5Client Sample ID A-5784 QC VEN DIV STACK MM18 IMPINGER 5 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine ND 5730 2870 ugSample 112919 1045 121319 2316 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2370 1080 ugSample 112919 1045 121819 1442 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1053 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 125 50 - 200 120419 1005 120819 1053 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1503 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-6Client Sample ID A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 291 384 ugSample 112919 1045 120619 1720 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

582 582 ugSample 112919 1045 120619 1720 111133-Pentafluorobutane ND

291 419 ugSample 112919 1045 120619 1720 1111-Trichloroethane ND

582 115 ugSample 112919 1045 120619 1720 1111-Trifluoro-22-dichloroethane ND

582 582 ugSample 112919 1045 120619 1720 1111-Trifluoroethane ND

291 559 ugSample 112919 1045 120619 1720 11122-Tetrachloroethane ND

582 326 ugSample 112919 1045 120619 1720 1112-Trichloro-122-trifluoroethane ND

582 582 ugSample 112919 1045 120619 1720 1112-trichloro-1-fluoroethane ND

291 303 ugSample 112919 1045 120619 1720 1112-Trichloroethane ND

582 291 ugSample 112919 1045 120619 1720 111-Dichloro-1-fluoroethane ND

582 582 ugSample 112919 1045 120619 1720 111-dichloro-22-difluoroethane ND

582 582 ugSample 112919 1045 120619 1720 111-dichloro-22-difluoroethene ND

291 349 ugSample 112919 1045 120619 1720 111-Dichloroethane ND

291 431 ugSample 112919 1045 120619 1720 111-Dichloroethene ND

291 314 ugSample 112919 1045 120619 1720 111-Dichloropropene ND

582 582 ugSample 112919 1045 120619 1720 111-Difluoroethene ND

582 582 ugSample 112919 1045 120619 1720 1122-trichloro-11-difluoroethane ND

291 931 ugSample 112919 1045 120619 1720 1123-Trichlorobenzene ND

291 722 ugSample 112919 1045 120619 1720 1123-Trichloropropane ND

291 978 ugSample 112919 1045 120619 1720 1124-Trichlorobenzene ND

291 605 ugSample 112919 1045 120619 1720 1124-Trimethylbenzene ND

582 102 ugSample 112919 1045 120619 1720 112-Dibromo-3-Chloropropane ND

291 384 ugSample 112919 1045 120619 1720 112-Dibromoethane (EDB) ND

582 582 ugSample 112919 1045 120619 1720 112-dichloro-11-difluoroethane ND

291 512 ugSample 112919 1045 120619 1720 112-Dichlorobenzene ND

291 489 ugSample 112919 1045 120619 1720 112-Dichloroethane ND

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12232019Page 25 of 820149

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-6Client Sample ID A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

12-Dichloropropane ND 291 291 ugSample 112919 1045 120619 1720 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

291 605 ugSample 112919 1045 120619 1720 1135-Trimethylbenzene ND

291 501 ugSample 112919 1045 120619 1720 113-Dichlorobenzene ND

291 326 ugSample 112919 1045 120619 1720 113-Dichloropropane ND

291 582 ugSample 112919 1045 120619 1720 114-Dichlorobenzene ND

582 594 ugSample 112919 1045 120619 1720 11-Chloro-11-difluoroethane ND

582 582 ugSample 112919 1045 120619 1720 122-dichloro-11-difluoroethylmethyl

ether

ND

291 850 ugSample 112919 1045 120619 1720 122-Dichloropropane ND

116 186 ugSample 112919 1045 120619 1720 12-Butanone (MEK) ND

582 861 ugSample 112919 1045 120619 1720 12-chloro-111444-hexafluoro-2-but

ene

ND

582 582 ugSample 112919 1045 120619 1720 12-Chloro-111-Trifluoroethane ND

291 547 ugSample 112919 1045 120619 1720 12-Chlorotoluene ND

116 268 ugSample 112919 1045 120619 1720 12-Hexanone ND

254 254 ugSample 112919 1045 120619 1720 12-MTP as HFPO ND

291 605 ugSample 112919 1045 120619 1720 14-Chlorotoluene ND

291 780 ugSample 112919 1045 120619 1720 14-Isopropyltoluene ND

116 186 ugSample 112919 1045 120619 1720 14-Methyl-2-pentanone (MIBK) ND

116 687 ugSample 112919 1045 120619 1720 1Acetone ND

291 559 ugSample 112919 1045 120619 1720 1Benzene ND

291 407 ugSample 112919 1045 120619 1720 1Bromobenzene ND

291 652 ugSample 112919 1045 120619 1720 1Bromochloromethane ND

291 501 ugSample 112919 1045 120619 1720 1Bromodichloromethane ND

291 885 ugSample 112919 1045 120619 1720 1Bromoform ND

582 338 ugSample 112919 1045 120619 1720 1Bromomethane ND

291 722 ugSample 112919 1045 120619 1720 1Carbon disulfide ND

291 384 ugSample 112919 1045 120619 1720 1Carbon tetrachloride ND

850 850 ugSample 112919 1045 120619 1720 1Carbonyl Difluoride ND

291 419 ugSample 112919 1045 120619 1720 1Chlorobenzene ND

291 629 ugSample 112919 1045 120619 1720 1Chlorodibromomethane ND

582 128 ugSample 112919 1045 120619 1720 1Chloroethane ND

291 338 ugSample 112919 1045 120619 1720 1Chloroform ND

582 242 ugSample 112919 1045 120619 1720 1Chloromethane ND

291 233 ugSample 112919 1045 120619 1720 1cis-12-Dichloroethene ND

291 501 ugSample 112919 1045 120619 1720 1cis-13-Dichloropropene ND

291 279 ugSample 112919 1045 120619 1720 1Dibromomethane ND

582 102 ugSample 112919 1045 120619 1720 1Dichlorodifluoromethane ND

291 477 ugSample 112919 1045 120619 1720 1Ethylbenzene ND

291 291 ugSample 112919 1045 120619 1720 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

291 768 ugSample 112919 1045 120619 1720 1Hexachlorobutadiene ND

279 279 ugSample 112919 1045 120619 1720 1HFPO dimer methyl ester as

HFPO-DA

ND

291 407 ugSample 112919 1045 120619 1720 1Isopropylbenzene ND

582 477 ugSample 112919 1045 120619 1720 1mp-Xylene ND

291 186 ugSample 112919 1045 120619 1720 1Methylene Chloride ND

291 140 ugSample 112919 1045 120619 1720 1Naphthalene ND

Eurofins TestAmerica Knoxville

12232019Page 26 of 820150

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-6Client Sample ID A-5785 QC VEN DIV STACK MM18 IMPINGER 6 BT

Matrix AirDate Collected 112219 0000Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

n-Butylbenzene ND 291 745 ugSample 112919 1045 120619 1720 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

291 629 ugSample 112919 1045 120619 1720 1n-Propylbenzene ND

291 303 ugSample 112919 1045 120619 1720 1o-Xylene ND

291 570 ugSample 112919 1045 120619 1720 1sec-Butylbenzene ND

291 629 ugSample 112919 1045 120619 1720 1Styrene ND

291 512 ugSample 112919 1045 120619 1720 1tert-Butylbenzene ND

291 384 ugSample 112919 1045 120619 1720 1Tetrachloroethene ND

291 535 ugSample 112919 1045 120619 1720 1Toluene ND

291 303 ugSample 112919 1045 120619 1720 1trans-12-Dichloroethene ND

291 102 ugSample 112919 1045 120619 1720 1trans-13-Dichloropropene ND

291 210 ugSample 112919 1045 120619 1720 1Trichloroethene ND

582 559 ugSample 112919 1045 120619 1720 1Trichlorofluoromethane ND

582 140 ugSample 112919 1045 120619 1720 1Vinyl chloride ND

Tentatively Identified Compound None ugSample 112919 1045 120619 1720 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 119 70 - 160 112919 1045 120619 1720 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 109 112919 1045 120619 1720 157 - 152

Dibromofluoromethane (Surr) 104 112919 1045 120619 1720 162 - 134

Toluene-d8 (Surr) 96 112919 1045 120619 1720 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine ND 6480 3240 ugSample 112919 1045 121319 2337 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2560 1160 ugSample 112919 1045 121819 1503 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1057 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 127 50 - 200 120419 1005 120819 1057 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1503 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-7Client Sample ID A-5786 QC MEOH RBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 203 268 ugSample 112919 1045 120619 1404 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

406 406 ugSample 112919 1045 120619 1404 111133-Pentafluorobutane ND

203 293 ugSample 112919 1045 120619 1404 1111-Trichloroethane ND

Eurofins TestAmerica Knoxville

12232019Page 27 of 820151

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-7Client Sample ID A-5786 QC MEOH RBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

111-Trifluoro-22-dichloroethane ND 406 804 ugSample 112919 1045 120619 1404 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

406 406 ugSample 112919 1045 120619 1404 1111-Trifluoroethane ND

203 390 ugSample 112919 1045 120619 1404 11122-Tetrachloroethane ND

406 228 ugSample 112919 1045 120619 1404 1112-Trichloro-122-trifluoroethane ND

406 406 ugSample 112919 1045 120619 1404 1112-trichloro-1-fluoroethane ND

203 211 ugSample 112919 1045 120619 1404 1112-Trichloroethane ND

406 203 ugSample 112919 1045 120619 1404 111-Dichloro-1-fluoroethane ND

406 406 ugSample 112919 1045 120619 1404 111-dichloro-22-difluoroethane ND

406 406 ugSample 112919 1045 120619 1404 111-dichloro-22-difluoroethene ND

203 244 ugSample 112919 1045 120619 1404 111-Dichloroethane ND

203 301 ugSample 112919 1045 120619 1404 111-Dichloroethene ND

203 219 ugSample 112919 1045 120619 1404 111-Dichloropropene ND

406 406 ugSample 112919 1045 120619 1404 111-Difluoroethene ND

406 406 ugSample 112919 1045 120619 1404 1122-trichloro-11-difluoroethane ND

203 650 ugSample 112919 1045 120619 1404 1123-Trichlorobenzene ND

203 504 ugSample 112919 1045 120619 1404 1123-Trichloropropane ND

203 683 ugSample 112919 1045 120619 1404 1124-Trichlorobenzene ND

203 423 ugSample 112919 1045 120619 1404 1124-Trimethylbenzene ND

406 715 ugSample 112919 1045 120619 1404 112-Dibromo-3-Chloropropane ND

203 268 ugSample 112919 1045 120619 1404 112-Dibromoethane (EDB) ND

406 406 ugSample 112919 1045 120619 1404 112-dichloro-11-difluoroethane ND

203 358 ugSample 112919 1045 120619 1404 112-Dichlorobenzene ND

203 341 ugSample 112919 1045 120619 1404 112-Dichloroethane ND

203 203 ugSample 112919 1045 120619 1404 112-Dichloropropane ND

203 423 ugSample 112919 1045 120619 1404 1135-Trimethylbenzene ND

203 349 ugSample 112919 1045 120619 1404 113-Dichlorobenzene ND

203 228 ugSample 112919 1045 120619 1404 113-Dichloropropane ND

203 406 ugSample 112919 1045 120619 1404 114-Dichlorobenzene ND

406 414 ugSample 112919 1045 120619 1404 11-Chloro-11-difluoroethane ND

406 406 ugSample 112919 1045 120619 1404 122-dichloro-11-difluoroethylmethyl

ether

ND

203 593 ugSample 112919 1045 120619 1404 122-Dichloropropane ND

813 130 ugSample 112919 1045 120619 1404 12-Butanone (MEK) ND

406 601 ugSample 112919 1045 120619 1404 12-chloro-111444-hexafluoro-2-but

ene

ND

406 406 ugSample 112919 1045 120619 1404 12-Chloro-111-Trifluoroethane ND

203 382 ugSample 112919 1045 120619 1404 12-Chlorotoluene ND

813 187 ugSample 112919 1045 120619 1404 12-Hexanone ND

177 177 ugSample 112919 1045 120619 1404 12-MTP as HFPO ND

203 423 ugSample 112919 1045 120619 1404 14-Chlorotoluene ND

203 544 ugSample 112919 1045 120619 1404 14-Isopropyltoluene ND

813 130 ugSample 112919 1045 120619 1404 14-Methyl-2-pentanone (MIBK) ND

813 479 ugSample 112919 1045 120619 1404 1Acetone ND

203 390 ugSample 112919 1045 120619 1404 1Benzene ND

203 284 ugSample 112919 1045 120619 1404 1Bromobenzene ND

203 455 ugSample 112919 1045 120619 1404 1Bromochloromethane ND

203 349 ugSample 112919 1045 120619 1404 1Bromodichloromethane ND

203 618 ugSample 112919 1045 120619 1404 1Bromoform ND

406 236 ugSample 112919 1045 120619 1404 1Bromomethane ND

Eurofins TestAmerica Knoxville

12232019Page 28 of 820152

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-7Client Sample ID A-5786 QC MEOH RBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Carbon disulfide ND 203 504 ugSample 112919 1045 120619 1404 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

203 268 ugSample 112919 1045 120619 1404 1Carbon tetrachloride ND

596 596 ugSample 112919 1045 120619 1404 1Carbonyl Difluoride ND

203 293 ugSample 112919 1045 120619 1404 1Chlorobenzene ND

203 439 ugSample 112919 1045 120619 1404 1Chlorodibromomethane ND

406 894 ugSample 112919 1045 120619 1404 1Chloroethane ND

203 236 ugSample 112919 1045 120619 1404 1Chloroform ND

406 169 ugSample 112919 1045 120619 1404 1Chloromethane ND

203 163 ugSample 112919 1045 120619 1404 1cis-12-Dichloroethene ND

203 349 ugSample 112919 1045 120619 1404 1cis-13-Dichloropropene ND

203 195 ugSample 112919 1045 120619 1404 1Dibromomethane ND

406 715 ugSample 112919 1045 120619 1404 1Dichlorodifluoromethane ND

203 333 ugSample 112919 1045 120619 1404 1Ethylbenzene ND

203 203 ugSample 112919 1045 120619 1404 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

203 536 ugSample 112919 1045 120619 1404 1Hexachlorobutadiene ND

195 195 ugSample 112919 1045 120619 1404 1HFPO dimer methyl ester as

HFPO-DA

ND

203 284 ugSample 112919 1045 120619 1404 1Isopropylbenzene ND

406 333 ugSample 112919 1045 120619 1404 1mp-Xylene ND

203 130 ugSample 112919 1045 120619 1404 1Methylene Chloride 131 J B

203 975 ugSample 112919 1045 120619 1404 1Naphthalene ND

203 520 ugSample 112919 1045 120619 1404 1n-Butylbenzene ND

203 439 ugSample 112919 1045 120619 1404 1n-Propylbenzene ND

203 211 ugSample 112919 1045 120619 1404 1o-Xylene ND

203 398 ugSample 112919 1045 120619 1404 1sec-Butylbenzene ND

203 439 ugSample 112919 1045 120619 1404 1Styrene ND

203 358 ugSample 112919 1045 120619 1404 1tert-Butylbenzene ND

203 268 ugSample 112919 1045 120619 1404 1Tetrachloroethene ND

203 374 ugSample 112919 1045 120619 1404 1Toluene ND

203 211 ugSample 112919 1045 120619 1404 1trans-12-Dichloroethene ND

203 715 ugSample 112919 1045 120619 1404 1trans-13-Dichloropropene ND

203 146 ugSample 112919 1045 120619 1404 1Trichloroethene ND

406 390 ugSample 112919 1045 120619 1404 1Trichlorofluoromethane ND

406 975 ugSample 112919 1045 120619 1404 1Vinyl chloride ND

Cyclohexane 349 T J N ugSample 442 110-82-7 112919 1045 120619 1404 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 116 70 - 160 112919 1045 120619 1404 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 110 112919 1045 120619 1404 157 - 152

Dibromofluoromethane (Surr) 104 112919 1045 120619 1404 162 - 134

Toluene-d8 (Surr) 97 112919 1045 120619 1404 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine ND 4330 2170 ugSample 112919 1045 121319 2358 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

1790 813 ugSample 112919 1045 121819 1524 20Hydrogen Fluoride ND

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12232019Page 29 of 820153

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-7Client Sample ID A-5786 QC MEOH RBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA 00106 J 00250 000500 ugSample 120419 1005 120819 1100 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 125 50 - 200 120419 1005 120819 1100 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1503 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-8Client Sample ID A-5787 QC MEOH TBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 154 203 ugSample 112919 1045 120619 1428 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

308 308 ugSample 112919 1045 120619 1428 111133-Pentafluorobutane ND

154 222 ugSample 112919 1045 120619 1428 1111-Trichloroethane ND

308 609 ugSample 112919 1045 120619 1428 1111-Trifluoro-22-dichloroethane ND

308 308 ugSample 112919 1045 120619 1428 1111-Trifluoroethane ND

154 295 ugSample 112919 1045 120619 1428 11122-Tetrachloroethane ND

308 172 ugSample 112919 1045 120619 1428 1112-Trichloro-122-trifluoroethane ND

308 308 ugSample 112919 1045 120619 1428 1112-trichloro-1-fluoroethane ND

154 160 ugSample 112919 1045 120619 1428 1112-Trichloroethane ND

308 154 ugSample 112919 1045 120619 1428 111-Dichloro-1-fluoroethane ND

308 308 ugSample 112919 1045 120619 1428 111-dichloro-22-difluoroethane ND

308 308 ugSample 112919 1045 120619 1428 111-dichloro-22-difluoroethene ND

154 185 ugSample 112919 1045 120619 1428 111-Dichloroethane ND

154 228 ugSample 112919 1045 120619 1428 111-Dichloroethene ND

154 166 ugSample 112919 1045 120619 1428 111-Dichloropropene ND

308 308 ugSample 112919 1045 120619 1428 111-Difluoroethene ND

308 308 ugSample 112919 1045 120619 1428 1122-trichloro-11-difluoroethane ND

154 492 ugSample 112919 1045 120619 1428 1123-Trichlorobenzene ND

154 382 ugSample 112919 1045 120619 1428 1123-Trichloropropane ND

154 517 ugSample 112919 1045 120619 1428 1124-Trichlorobenzene ND

154 320 ugSample 112919 1045 120619 1428 1124-Trimethylbenzene ND

308 542 ugSample 112919 1045 120619 1428 112-Dibromo-3-Chloropropane ND

154 203 ugSample 112919 1045 120619 1428 112-Dibromoethane (EDB) ND

308 308 ugSample 112919 1045 120619 1428 112-dichloro-11-difluoroethane ND

154 271 ugSample 112919 1045 120619 1428 112-Dichlorobenzene ND

154 259 ugSample 112919 1045 120619 1428 112-Dichloroethane ND

154 154 ugSample 112919 1045 120619 1428 112-Dichloropropane ND

154 320 ugSample 112919 1045 120619 1428 1135-Trimethylbenzene ND

154 265 ugSample 112919 1045 120619 1428 113-Dichlorobenzene ND

154 172 ugSample 112919 1045 120619 1428 113-Dichloropropane ND

154 308 ugSample 112919 1045 120619 1428 114-Dichlorobenzene ND

308 314 ugSample 112919 1045 120619 1428 11-Chloro-11-difluoroethane ND

308 308 ugSample 112919 1045 120619 1428 122-dichloro-11-difluoroethylmethyl

ether

ND

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12232019Page 30 of 820154

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-8Client Sample ID A-5787 QC MEOH TBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

22-Dichloropropane ND 154 449 ugSample 112919 1045 120619 1428 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

616 985 ugSample 112919 1045 120619 1428 12-Butanone (MEK) ND

308 455 ugSample 112919 1045 120619 1428 12-chloro-111444-hexafluoro-2-but

ene

ND

308 308 ugSample 112919 1045 120619 1428 12-Chloro-111-Trifluoroethane ND

154 289 ugSample 112919 1045 120619 1428 12-Chlorotoluene ND

616 142 ugSample 112919 1045 120619 1428 12-Hexanone ND

135 135 ugSample 112919 1045 120619 1428 12-MTP as HFPO ND

154 320 ugSample 112919 1045 120619 1428 14-Chlorotoluene ND

154 412 ugSample 112919 1045 120619 1428 14-Isopropyltoluene ND

616 985 ugSample 112919 1045 120619 1428 14-Methyl-2-pentanone (MIBK) ND

616 363 ugSample 112919 1045 120619 1428 1Acetone ND

154 295 ugSample 112919 1045 120619 1428 1Benzene ND

154 215 ugSample 112919 1045 120619 1428 1Bromobenzene ND

154 345 ugSample 112919 1045 120619 1428 1Bromochloromethane ND

154 265 ugSample 112919 1045 120619 1428 1Bromodichloromethane ND

154 468 ugSample 112919 1045 120619 1428 1Bromoform ND

308 178 ugSample 112919 1045 120619 1428 1Bromomethane ND

154 382 ugSample 112919 1045 120619 1428 1Carbon disulfide ND

154 203 ugSample 112919 1045 120619 1428 1Carbon tetrachloride ND

451 451 ugSample 112919 1045 120619 1428 1Carbonyl Difluoride ND

154 222 ugSample 112919 1045 120619 1428 1Chlorobenzene ND

154 332 ugSample 112919 1045 120619 1428 1Chlorodibromomethane ND

308 677 ugSample 112919 1045 120619 1428 1Chloroethane ND

154 178 ugSample 112919 1045 120619 1428 1Chloroform ND

308 128 ugSample 112919 1045 120619 1428 1Chloromethane ND

154 123 ugSample 112919 1045 120619 1428 1cis-12-Dichloroethene ND

154 265 ugSample 112919 1045 120619 1428 1cis-13-Dichloropropene ND

154 148 ugSample 112919 1045 120619 1428 1Dibromomethane ND

308 542 ugSample 112919 1045 120619 1428 1Dichlorodifluoromethane ND

154 252 ugSample 112919 1045 120619 1428 1Ethylbenzene ND

154 154 ugSample 112919 1045 120619 1428 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

154 406 ugSample 112919 1045 120619 1428 1Hexachlorobutadiene ND

148 148 ugSample 112919 1045 120619 1428 1HFPO dimer methyl ester as

HFPO-DA

ND

154 215 ugSample 112919 1045 120619 1428 1Isopropylbenzene ND

308 252 ugSample 112919 1045 120619 1428 1mp-Xylene ND

154 985 ugSample 112919 1045 120619 1428 1Methylene Chloride 101 J B

154 739 ugSample 112919 1045 120619 1428 1Naphthalene ND

154 394 ugSample 112919 1045 120619 1428 1n-Butylbenzene ND

154 332 ugSample 112919 1045 120619 1428 1n-Propylbenzene ND

154 160 ugSample 112919 1045 120619 1428 1o-Xylene ND

154 302 ugSample 112919 1045 120619 1428 1sec-Butylbenzene ND

154 332 ugSample 112919 1045 120619 1428 1Styrene ND

154 271 ugSample 112919 1045 120619 1428 1tert-Butylbenzene ND

154 203 ugSample 112919 1045 120619 1428 1Tetrachloroethene ND

154 283 ugSample 112919 1045 120619 1428 1Toluene ND

154 160 ugSample 112919 1045 120619 1428 1trans-12-Dichloroethene ND

Eurofins TestAmerica Knoxville

12232019Page 31 of 820155

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-8Client Sample ID A-5787 QC MEOH TBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

trans-13-Dichloropropene ND 154 542 ugSample 112919 1045 120619 1428 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

154 111 ugSample 112919 1045 120619 1428 1Trichloroethene ND

308 295 ugSample 112919 1045 120619 1428 1Trichlorofluoromethane ND

308 739 ugSample 112919 1045 120619 1428 1Vinyl chloride ND

Cyclohexane 417 T J N ugSample 442 110-82-7 112919 1045 120619 1428 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 119 70 - 160 112919 1045 120619 1428 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 111 112919 1045 120619 1428 157 - 152

Dibromofluoromethane (Surr) 105 112919 1045 120619 1428 162 - 134

Toluene-d8 (Surr) 96 112919 1045 120619 1428 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 9720 3280 1640 ugSample 112919 1045 121419 0018 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

1350 616 ugSample 112919 1045 121919 0919 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1103 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 125 50 - 200 120419 1005 120819 1103 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1503 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID 140-17462-9Client Sample ID A-5788 QC MEOH PBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS)RL MDL

1112-Tetrachloroethane ND 181 238 ugSample 112919 1045 120619 1453 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

361 361 ugSample 112919 1045 120619 1453 111133-Pentafluorobutane ND

181 260 ugSample 112919 1045 120619 1453 1111-Trichloroethane ND

361 715 ugSample 112919 1045 120619 1453 1111-Trifluoro-22-dichloroethane ND

361 361 ugSample 112919 1045 120619 1453 1111-Trifluoroethane ND

181 347 ugSample 112919 1045 120619 1453 11122-Tetrachloroethane ND

361 202 ugSample 112919 1045 120619 1453 1112-Trichloro-122-trifluoroethane ND

361 361 ugSample 112919 1045 120619 1453 1112-trichloro-1-fluoroethane ND

181 188 ugSample 112919 1045 120619 1453 1112-Trichloroethane ND

361 181 ugSample 112919 1045 120619 1453 111-Dichloro-1-fluoroethane ND

361 361 ugSample 112919 1045 120619 1453 111-dichloro-22-difluoroethane ND

361 361 ugSample 112919 1045 120619 1453 111-dichloro-22-difluoroethene ND

181 217 ugSample 112919 1045 120619 1453 111-Dichloroethane ND

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12232019Page 32 of 820156

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-9Client Sample ID A-5788 QC MEOH PBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

11-Dichloroethene ND 181 267 ugSample 112919 1045 120619 1453 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

181 195 ugSample 112919 1045 120619 1453 111-Dichloropropene ND

361 361 ugSample 112919 1045 120619 1453 111-Difluoroethene ND

361 361 ugSample 112919 1045 120619 1453 1122-trichloro-11-difluoroethane ND

181 578 ugSample 112919 1045 120619 1453 1123-Trichlorobenzene ND

181 448 ugSample 112919 1045 120619 1453 1123-Trichloropropane ND

181 607 ugSample 112919 1045 120619 1453 1124-Trichlorobenzene ND

181 375 ugSample 112919 1045 120619 1453 1124-Trimethylbenzene ND

361 635 ugSample 112919 1045 120619 1453 112-Dibromo-3-Chloropropane ND

181 238 ugSample 112919 1045 120619 1453 112-Dibromoethane (EDB) ND

361 361 ugSample 112919 1045 120619 1453 112-dichloro-11-difluoroethane ND

181 318 ugSample 112919 1045 120619 1453 112-Dichlorobenzene ND

181 303 ugSample 112919 1045 120619 1453 112-Dichloroethane ND

181 181 ugSample 112919 1045 120619 1453 112-Dichloropropane ND

181 375 ugSample 112919 1045 120619 1453 1135-Trimethylbenzene ND

181 311 ugSample 112919 1045 120619 1453 113-Dichlorobenzene ND

181 202 ugSample 112919 1045 120619 1453 113-Dichloropropane ND

181 361 ugSample 112919 1045 120619 1453 114-Dichlorobenzene ND

361 368 ugSample 112919 1045 120619 1453 11-Chloro-11-difluoroethane ND

361 361 ugSample 112919 1045 120619 1453 122-dichloro-11-difluoroethylmethyl

ether

ND

181 527 ugSample 112919 1045 120619 1453 122-Dichloropropane ND

722 116 ugSample 112919 1045 120619 1453 12-Butanone (MEK) ND

361 534 ugSample 112919 1045 120619 1453 12-chloro-111444-hexafluoro-2-but

ene

ND

361 361 ugSample 112919 1045 120619 1453 12-Chloro-111-Trifluoroethane ND

181 339 ugSample 112919 1045 120619 1453 12-Chlorotoluene ND

722 166 ugSample 112919 1045 120619 1453 12-Hexanone ND

158 158 ugSample 112919 1045 120619 1453 12-MTP as HFPO ND

181 375 ugSample 112919 1045 120619 1453 14-Chlorotoluene ND

181 484 ugSample 112919 1045 120619 1453 14-Isopropyltoluene ND

722 116 ugSample 112919 1045 120619 1453 14-Methyl-2-pentanone (MIBK) ND

722 426 ugSample 112919 1045 120619 1453 1Acetone ND

181 347 ugSample 112919 1045 120619 1453 1Benzene ND

181 253 ugSample 112919 1045 120619 1453 1Bromobenzene ND

181 404 ugSample 112919 1045 120619 1453 1Bromochloromethane ND

181 311 ugSample 112919 1045 120619 1453 1Bromodichloromethane ND

181 549 ugSample 112919 1045 120619 1453 1Bromoform ND

361 209 ugSample 112919 1045 120619 1453 1Bromomethane ND

181 448 ugSample 112919 1045 120619 1453 1Carbon disulfide ND

181 238 ugSample 112919 1045 120619 1453 1Carbon tetrachloride ND

529 529 ugSample 112919 1045 120619 1453 1Carbonyl Difluoride ND

181 260 ugSample 112919 1045 120619 1453 1Chlorobenzene ND

181 390 ugSample 112919 1045 120619 1453 1Chlorodibromomethane ND

361 794 ugSample 112919 1045 120619 1453 1Chloroethane ND

181 209 ugSample 112919 1045 120619 1453 1Chloroform ND

361 150 ugSample 112919 1045 120619 1453 1Chloromethane ND

181 144 ugSample 112919 1045 120619 1453 1cis-12-Dichloroethene ND

181 311 ugSample 112919 1045 120619 1453 1cis-13-Dichloropropene ND

Eurofins TestAmerica Knoxville

12232019Page 33 of 820157

Client Sample ResultsJob ID 140-17462-1Client Chemours Company FC LLC The

ProjectSite VEN MM-18 Field QC

Lab Sample ID 140-17462-9Client Sample ID A-5788 QC MEOH PBMatrix AirDate Collected 112219 0000

Date Received 112519 0800Sample Container Plastic 250ml - unpreserved

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)RL MDL

Dibromomethane ND 181 173 ugSample 112919 1045 120619 1453 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

361 635 ugSample 112919 1045 120619 1453 1Dichlorodifluoromethane ND

181 296 ugSample 112919 1045 120619 1453 1Ethylbenzene ND

181 181 ugSample 112919 1045 120619 1453 1Heptafluoropropyl

1222-tetrafluoroethyl ether

ND

181 477 ugSample 112919 1045 120619 1453 1Hexachlorobutadiene ND

174 174 ugSample 112919 1045 120619 1453 1HFPO dimer methyl ester as

HFPO-DA

ND

181 253 ugSample 112919 1045 120619 1453 1Isopropylbenzene ND

361 296 ugSample 112919 1045 120619 1453 1mp-Xylene ND

181 116 ugSample 112919 1045 120619 1453 1Methylene Chloride 136 J B

181 867 ugSample 112919 1045 120619 1453 1Naphthalene ND

181 462 ugSample 112919 1045 120619 1453 1n-Butylbenzene ND

181 390 ugSample 112919 1045 120619 1453 1n-Propylbenzene ND

181 188 ugSample 112919 1045 120619 1453 1o-Xylene ND

181 354 ugSample 112919 1045 120619 1453 1sec-Butylbenzene ND

181 390 ugSample 112919 1045 120619 1453 1Styrene ND

181 318 ugSample 112919 1045 120619 1453 1tert-Butylbenzene ND

181 238 ugSample 112919 1045 120619 1453 1Tetrachloroethene ND

181 332 ugSample 112919 1045 120619 1453 1Toluene ND

181 188 ugSample 112919 1045 120619 1453 1trans-12-Dichloroethene ND

181 635 ugSample 112919 1045 120619 1453 1trans-13-Dichloropropene ND

181 130 ugSample 112919 1045 120619 1453 1Trichloroethene ND

361 347 ugSample 112919 1045 120619 1453 1Trichlorofluoromethane ND

361 867 ugSample 112919 1045 120619 1453 1Vinyl chloride ND

Cyclohexane 280 T J N ugSample 442 110-82-7 112919 1045 120619 1453 1

Tentatively Identified Compound Dil FacAnalyzedPreparedUnit DQualifierEst Result CAS NoRT

12-Dichloroethane-d4 (Surr) 117 70 - 160 112919 1045 120619 1453 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

4-Bromofluorobenzene (Surr) 108 112919 1045 120619 1453 157 - 152

Dibromofluoromethane (Surr) 104 112919 1045 120619 1453 162 - 134

Toluene-d8 (Surr) 96 112919 1045 120619 1453 171 - 139

Method 9056 - Anions Ion ChromatographyRL MDL

Total Fluorine 2450 J 3850 1930 ugSample 112919 1045 121419 0039 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

1590 722 ugSample 112919 1045 121919 0940 20Hydrogen Fluoride ND

Method 8321A - PFOA and PFOSRL MDL

HFPO-DA ND 00250 000500 ugSample 120419 1005 120819 1106 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C3 HFPO-DA 131 50 - 200 120419 1005 120819 1106 1

Surrogate Dil FacAnalyzedPreparedQualifier LimitsRecovery

General ChemistryRL MDL

pH 400 HF SU 121319 1503 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Eurofins TestAmerica Knoxville

12232019Page 34 of 820158

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17462-1ProjectSite VEN MM-18 Field QC

Method 8260B - Volatile Organic Compounds (GCMS)Prep MeOH Prep

2501112-Tetrachloroethane ugSample

Analyte UnitsMDLRL

0330

50011133-Pentafluorobutane ugSample0500

250111-Trichloroethane ugSample0360

500111-Trifluoro-22-dichloroethane ugSample0990

500111-Trifluoroethane ugSample0500

2501122-Tetrachloroethane ugSample0480

500112-Trichloro-122-trifluoroethane ugSample0280

500112-trichloro-1-fluoroethane ugSample0500

250112-Trichloroethane ugSample0260

50011-Dichloro-1-fluoroethane ugSample250

50011-dichloro-22-difluoroethane ugSample0500

50011-dichloro-22-difluoroethene ugSample0500

25011-Dichloroethane ugSample0300

25011-Dichloroethene ugSample0370

25011-Dichloropropene ugSample0270

50011-Difluoroethene ugSample500

500122-trichloro-11-difluoroethane ugSample0500

250123-Trichlorobenzene ugSample0800

250123-Trichloropropane ugSample0620

250124-Trichlorobenzene ugSample0840

250124-Trimethylbenzene ugSample0520

50012-Dibromo-3-Chloropropane ugSample0880

25012-Dibromoethane (EDB) ugSample0330

50012-dichloro-11-difluoroethane ugSample0500

25012-Dichlorobenzene ugSample0440

25012-Dichloroethane ugSample0420

25012-Dichloropropane ugSample0250

250135-Trimethylbenzene ugSample0520

25013-Dichlorobenzene ugSample0430

25013-Dichloropropane ugSample0280

25014-Dichlorobenzene ugSample0500

5001-Chloro-11-difluoroethane ugSample0510

50022-dichloro-11-difluoroethylmethyl ether ugSample0500

25022-Dichloropropane ugSample0730

1002-Butanone (MEK) ugSample160

5002-chloro-111444-hexafluoro-2-butene ugSample0740

5002-Chloro-111-Trifluoroethane ugSample0500

2502-Chlorotoluene ugSample0470

1002-Hexanone ugSample230

2502-MTP as HFPO ugSample250

2504-Chlorotoluene ugSample0520

2504-Isopropyltoluene ugSample0670

1004-Methyl-2-pentanone (MIBK) ugSample160

100Acetone ugSample590

250Benzene ugSample0480

250Bromobenzene ugSample0350

250Bromochloromethane ugSample0560

250Bromodichloromethane ugSample0430

250Bromoform ugSample0760

500Bromomethane ugSample290

250Carbon disulfide ugSample0620

250Carbon tetrachloride ugSample0330

Eurofins TestAmerica Knoxville

12232019Page 35 of 820159

Default Detection LimitsClient Chemours Company FC LLC The Job ID 140-17462-1ProjectSite VEN MM-18 Field QC

Method 8260B - Volatile Organic Compounds (GCMS) (Continued)Prep MeOH Prep

100Carbonyl Difluoride ugSample

Analyte UnitsMDLRL

100

250Chlorobenzene ugSample0360

250Chlorodibromomethane ugSample0540

500Chloroethane ugSample110

250Chloroform ugSample0290

500Chloromethane ugSample208

250cis-12-Dichloroethene ugSample0200

250cis-13-Dichloropropene ugSample0430

250Dibromomethane ugSample0240

500Dichlorodifluoromethane ugSample0880

250Ethylbenzene ugSample0410

250Heptafluoropropyl 1222-tetrafluoroethyl ether ugSample250

250Hexachlorobutadiene ugSample0660

250HFPO dimer methyl ester as HFPO-DA ugSample250

250Isopropylbenzene ugSample0350

500mp-Xylene ugSample0410

250Methylene Chloride ugSample160

250Naphthalene ugSample120

250n-Butylbenzene ugSample0640

250n-Propylbenzene ugSample0540

250o-Xylene ugSample0260

250sec-Butylbenzene ugSample0490

250Styrene ugSample0540

250tert-Butylbenzene ugSample0440

250Tetrachloroethene ugSample0330

250Toluene ugSample0460

250trans-12-Dichloroethene ugSample0260

250trans-13-Dichloropropene ugSample0880

250Trichloroethene ugSample0180

500Trichlorofluoromethane ugSample0480

500Vinyl chloride ugSample120

Method 9056 - Anions Ion ChromatographyPrep MeOH Prep

110Hydrogen Fluoride ugSample

Analyte UnitsMDLRL

500

1000Total Fluorine ugSample500

Method 8321A - PFOA and PFOSPrep None

0100HFPO-DA ugSample

Analyte UnitsMDLRL

00200

Eurofins TestAmerica Knoxville

12232019Page 36 of 820160

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

APPENDIX D SAMPLE CALCULATIONS

161

123120191101 AM 112219 Div Stack M0010

EXAMPLE CALCULATIONS FORVOLUMETRIC FLOW AND MOISTURE AND ISOKINETICS

Client Chemours Facility Fayetteville NCTest Number Run 1 Test Date 112219Test Location Division Stack Test Period 0826-1022

1 Volume of dry gas sampled at standard conditions (68 deg F 2992 in Hg) dscf

delta H 1764 x Y x Vm x ( Pb + ------------ )

136Vm(std) = --------------------------------------------

(Tm + 460)

14031764 x 09972 x 63136 x ( 3002 + --------------------- )

136Vm(std) = ------------------------------------------------------------ = 64704

5704 + 460

Where

Vm(std) = Volume of gas sample measured by the dry gas metercorrected to standard conditions dscf

Vm = Volume of gas sample measured by the dry gas meterat meter conditions dcf

Pb = Barometric Pressure in Hgdelt H = Average pressure drop across the orifice meter in H2O

Tm = Average dry gas meter temperature deg FY = Dry gas meter calibration factor

1764 = Factor that includes ratio of standard temperature (528 deg R)to standard pressure (2992 in Hg) deg Rin Hg

136 = Specific gravity of mercury

2 Volume of water vapor in the gas sample corrected to standard conditions scf

Vw(std) = (004707 x Vwc) + (004715 x Wwsg)

Vw(std) = ( 004707 x 100 ) + ( 004715 x 244 ) = 162

Where

Vw(std) = Volume of water vapor in the gas sample corrected tostandard conditions scf

Vwc = Volume of liquid condensed in impingers mlWwsg = Weight of water vapor collected in silica gel g

004707 = Factor which includes the density of water(0002201 lbml) the molecular weight of water(180 lblb-mole) the ideal gas constant2185 (in Hg) (ft3)lb-mole)(deg R) absolutetemperature at standard conditions (528 deg R) absolutepressure at standard conditions (2992 in Hg) ft3ml

004715 = Factor which includes the molecular weight of water(180 lblb-mole) the ideal gas constant2185 (in Hg) (ft3)lb-mole)(deg R) absolutetemperature at standard conditions (528 deg R) absolutepressure at standard conditions (2992 in Hg) and4536 glb ft3g

162

123120191101 AM 112219 Div Stack M0010

3 Moisture content

Vw(std)bws = -------------------------

Vw(std) + Vm(std)

162bws = ------------------------- = 0024

162 + 64704

Where

bws = Proportion of water vapor by volume in the gasstream dimensionless

4 Mole fraction of dry gas

Md = 1 - bws

Md = 1 - 0024 = 0976

Where

Md = Mole fraction of dry gas dimensionless

5 Dry molecular weight of gas stream lblb-mole

MWd = ( 0440 x CO2 ) + ( 0320 x O2 ) + ( 0280 x ( N2 + CO) )

MWd = ( 0440 x 00 ) + ( 0320 x 209 ) + (0280 x ( 791 + 000 ))

MWd = 2884

Where

MWd = Dry molecular weight lblb-mole CO2 = Percent carbon dioxide by volume dry basis

O2 = Percent oxygen by volume dry basis N2 = Percent nitrogen by volume dry basis

CO = Percent carbon monoxide by volume dry basis0440 = Molecular weight of carbon dioxide divided by 1000320 = Molecular weight of oxygen divided by 1000280 = Molecular weight of nitrogen or carbon monoxide

divided by 100

6 Actual molecular weight of gas stream (wet basis) lblb-mole

MWs = ( MWd x Md ) + ( 18 x ( 1 - Md ))

MWs = ( 2884 x 0976 ) +( 18 ( 1 - 0976 )) = 2857

Where

MWs = Molecular weight of wet gas lblb-mole18 = Molecular weight of water lblb-mole

163

123120191101 AM 112219 Div Stack M0010

7 Average velocity of gas stream at actual conditions ftsec

Ts (avg)Vs = 8549 x Cp x ((delt p)12)avg x ( ---------------- )12

Ps x MWs

532Vs = 8549 x 084 x 145039 x ( -------------------- )^12 = 820

2999 x 2857Where

Vs = Average gas stream velocity ftsec (lblb-mole)(in Hg)12

8549 = Pitot tube constant ftsec x ------------------------------------ (deg R)(in H2O)

Cp = Pitot tube coefficient dimensionlessTs = Absolute gas stream temperature deg R = Ts deg F + 460

P(static)Ps = Absolute gas stack pressure in Hg = Pb + --------------

136delt p = Velocity head of stack in H2O

8 Average gas stream volumetric flow rate at actual conditions wacfmin

Qs(act) = 60 x Vs x As

Qs(act) = 60 x 820 x 707 = 34799

Where

Qs(act) = Volumetric flow rate of wet stack gas at actualconditions wacfmin

As = Cross-sectional area of stack ft260 = Conversion factor from seconds to minutes

9 Average gas stream dry volumetric flow rate at standard conditions dscfmin

PsQs(std) = 1764 x Md x ----- x Qs(act)

Ts

2999Qs(std) = 1764 x 0976 x -------------------- x 34799

5316

Qs(std) = 33787

Where

Qs(std) = Volumetric flow rate of dry stack gas at standardconditions dscfmin

164

123120191101 AM 112219 Div Stack M0010

10 Isokinetic variation calculated from intermediate values percent

17327 x Ts x Vm(std)I = -----------------------------------

Vs x O x Ps x Md x (Dn)2

17327 x 532 x 64704I = -------------------------------------------------- = 1010

820 x 96 x 2999 x 0976 x (0160)^2Where

I = Percent of isokinetic samplingO = Total sampling time minutes

Dn = Diameter of nozzle inches17327 = Factor which includes standard temperature (528 deg R)

standard pressure (2992 in Hg) the formula forcalculating area of circle D24 conversion of squarefeet to square inches (144) conversion of secondsto minutes (60) and conversion to percent (100)(in Hg)(in2)(min) (deg R)(ft2)(sec)

165

1320201218 PM 112219 Div Stack M0010

SAMPLE CALCULATIONS FORHFPO DIMER ACID (METHOD 0010)

Client Chemours Plant Fayetteville NCTest Number Run 1 Test Date 112219Test Location Divison Stack Test Period 0826-1022

1 HFPO Dimer Acid concentration lbsdscf

W x 22046 x 10-9

Conc1 = ------------------------------ Vm(std)

223 x 22046 x 10-9Conc1 = ------------------------------

64704

Conc1 = 760E-10

Where

W = Weight of HFPO Dimer Acid collected in sample in ug

Conc1 = Division Stack HFPO Dimer Acid concentration lbsdscf

22046x10-9 = Conversion factor from ug to lbs

2 HFPO Dimer Acid concentration ugdscm

Conc2 = W ( Vm(std) x 002832)

Conc2 = 223 ( 64704 x 002832 )

Conc2 = 122E+01

Where

Conc2 = Division Stack HFPO Dimer Acid concentration ugdscm

002832 = Conversion factor from cubic feet to cubic meters

166

1320201218 PM 112219 Div Stack M0010

3 HFPO Dimer Acid mass emission rate lbshr

MR1(Outlet) = Conc1 x Qs(std) x 60 minhr

MR1(Outlet) = 760E-10 x 33787 x 60

MR1(Outlet) = 154E-03

Where

MR1(Outlet) = Division Stack HFPO Dimer Acid mass emission rate lbshr

4 HFPO Dimer Acid mass emission rate gsec

MR2(Outlet) = PMR1 x 45359 3600

MR2(Outlet) = 154E-03 x 45359 3600

MR2(Outlet) = 194E-04

Where

MR2(Outlet) = Division Stack HFPO Dimer Acid mass emission rate gsec

4536 = Conversion factor from pounds to grams

3600 = Conversion factor from hours to seconds

167

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

APPENDIX E EQUIPMENT CALIBRATION RECORDS

168

P-694 all in oneMOD

Pitot Tube Identification Number

Inspection Date 21919 Individual Conducting Inspection

Distance to A Plane (PA) - inches 046 PASSDistance to B Plane (PB) - inches 046 PASS

Pitot OD (Dt) - inches 0375105 Dt lt P lt 15 Dt PA must Equal PB

Q1 and Q2 must be lt 10o

B1 or B2 must be lt 5o

Z must be lt 0125 inches

W must be lt 003125 inches

X must be gt 075 inches

Thermocouple meets the Distance Criteria in the adjacent figure

Impact Pressure Opening Plane is above the Nozzle Entry Plane

NO

NA

NO

NA

PASS

PASS

PASS

Distance between Sample Nozzle and Pitot (X) - inches

Thermocouple meets the Distance Criteria in the adjacent figure

YES

YES

PASS

NO YES

NA

0

0

Angle of B1 from vertical A Tube- degrees (absolute) 0

0

08

Horizontal offset between A and B Tubes (Z) - inches

Vertical offset between A and B Tubes (W) - inches

0004

0015

PASSFAIL

Angle of B1 from vertical B Tube- degrees (absolute)

PASS

PASS

PASS

P-694

ks

Angle of Q1 from vertical A Tube- degrees (absolute)

Angle of Q2 from vertical B Tube- degrees (absolute)

Type S Pitot Tube Inspection Data Form

Are Open Faces Aligned Perpendicular to the Tube Axis

YES NOPASS

If all Criteria PASS Cp is equal to 084

Sample Probe

Type S Pitot Tube

Temperature Sensor

Dt

2 inch

Sample Probe

Temperature Sensor

DtType S Pitot Tube

3 inch

34 inch

A B

Face Opening Planes

AB

AB

Q1 Q1 Q2

B B

B

A A

A

FlowFlow

B1(+)B1(-)

B2(+ or -)

B1(+ or -)

B-Side Plane

AB

PA

PB

A-Side PlaneDt

X

Sampling D

Impact Pressure Opening Plane

Nozzle Entry Plane

W

B

A

B

A

Z

169

Long Cal Box_30 2-21-19

Calibrator MDW Meter Box Number 30 Ambient Temp 72

Date 21-Feb-19 Wet Test Meter Number P-2952 Temp Reference Source

Dry Gas Meter Number 17485131

Setting

in H20

(∆H) ft3

(Vw)ft3

(Vd)

oF (Tw)

Outlet oF (Tdo)

Inlet oF (Tdi)

Average oF (Td)

Time min (O)

Y ∆H

905750 7000 7000910724 7000 7000

4974 7000 7000911701 7100 7100916685 7100 7100

4984 7100 7100917680 7200 7200927695 7400 740010015 7300 7300

928690 7400 7400938780 7500 750010090 7450 7450

939800 7600 7600949930 7700 770010130 7650 7650

Average 09972 18715

Vw - Gas Volume passing through the wet test meter 0 - Time of calibration runVd - Gas Volume passing through the dry gas meter Pb - Barometric PressureTw - Temp of gas in the wet test meterTdi - Temp of the inlet gas of the dry gas meterTdo - Temp of the outlet gas of the dry gas meterTd - Average temp of the gas in the dry gas meter

1 2 3 4 5 632 32 32 32 32 320 00

212 213 213 212 212 2124 -01932 933 933 932 932 9324 00

1832 1832 1832 1832 1832 18320 001 - Channel Temps must agree with +- 5oF or 3oC

2 - Acceptable Temperature Difference less than 15

20 100

18501128 10002

Dry Gas Meter

700

05 700

10

Long Cal and Temperature Cal Datasheet for Standard Dry Gas Meter Console

Orifice Manometer

Wet Test Meter

Dry gas Meter

Gas Volume

1822450 700 700 90

Y - Ratio of accuracy of wet test meter to dry gas meter

∆H - Pressure differential across orifice

30 100 700

TemperaturesWet Test

Meter

680

15 100

10007

50

700

107 09910

725

745

18894

18851130 09946

150 09995

9321832

Reference Temperature

Select Temperature

oC oF

21232

Average Temperature

Reading

Thermocouple Simulator

(Accuracy +- 1oF)

Temp

Difference 2

()

Temperature Reading from Individual Thermocouple Input 1

Channel Number

19103

Calibration Results

Baro Press in Hg ( Pb)

2987

760

( ) ( )

( )( ) 2

Vw

O460tw

460tdPb

H03170H

460tw613

HPbVd

)460td(PbVwY

lowast+

lowast

+lowast

∆lowast=∆

+lowast

+lowast

+lowastlowast=

( )( ) ( )( )( )

+

+minus+=

460FTempferenceRe

460FTempTest460FTempferenceReDiffTemp

o

oo

170

Y Factor Calibration Check CalculationMODIFIED METHOD 0010 TEST TRAIN

DIVISION STACKMETER BOX NO 30

11222019Run 1 Run 2

MWd = Dry molecular weight source gas lblb-mole032 = Molecular weight of oxygen divided by 100044 = Molecular weight of carbon dioxide divided by 100028 = Molecular weight of nitrogen or carbon monoxide divided by 100

CO2 = Percent carbon dioxide by volume dry basis 00 00 O2 = Percent oxygen by volume dry basis 209 209

MWd = ( 032 O2 ) + ( 044 CO2 ) + ( 028 ( 100 - ( CO2 + O2 )))

MWd = ( 032 209 ) + ( 044 0 ) + ( 028 ( 100 - ( 0 + 209 )))

MWd = ( 669 ) + ( 000 ) + ( 2215 )

MWd = 2884 2884

Tma = Source Temperature absolute(oR)Tm = Average dry gas meter temperature deg F 570 652

Tma = Ts + 460

Tma = 5704 + 460

Tma = 51704 52519

Ps = Absolute meter pressure inches Hg1360 = Specific gravity of mercury

delta H = Avg pressure drop across the orifice meter during sampling in H2O 140 100Pb = Barometric Pressure in Hg 3002 3002

Pm = Pb + (delta H 136)

Pm = 3002 + ( 14025 136)

Pm = 3012 3009

Yqa = dry gas meter calibration check value dimensionless003 = (2992528)(075)2 (in HgdegR) cfm2

2900 = dry molecular weight of air lblb-moleVm = Volume of gas sample measured by the dry gas meter at meter conditions dcf 63136 47088

Y = Dry gas meter calibration factor (based on full calibration) 09972 09972Delta H = Dry Gas meter orifice calibration coefficient in H2O 18715 18715

avg SQRT Delta H = Avg SQRT press drop across the orifice meter during sampling in H2O 11783 09984O = Total sampling time minutes 96 84

Yqa = (O Vm ) SQRT ( 00319 Tma 29 ) ( Delta H Pm MWd ) avg SQRT Delta H

Yqa = ( 9600 6314 ) SQRT ( 00319 51704 29 ) ( 187 3012 2884 ) 118

Yqa = 1521 SQRT 478315 1625473 118

Yqa = 09719 09742

Diff = Absolute difference between Yqa and Y 254 231

Diff = (( Y - Yqa ) Y ) 100

Diff = (( 09972 - 0972 ) 09972 ) 100

Average Diff = 243

Allowable = 50

1220201119 AM 112219 Div Stack M0010171

Long Cal Vost Box 5 11-29-18

Calibrator PM VOST Box Number VOST 5 Ambient Temp 72

Date 29-Nov-18 Wet Test Meter Number 10BB-1 Temp Reference Source

Dry Gas Meter Number 3605443

Resultsin H20

(∆H)liters (Vw)

liters (Vd)

oF (Tw)

Outlet oC (Tdo)

Inlet oC (Tdi)

Average oF (Td)

Time min (O)

Y

0000 2000 20004890 2050 20504890 2025 21600000 2050 20509772 2100 21009772 2075 22800000 2220 222014768 2220 222014768 2220 22200000 2280 228020034 2280 228020034 2280 2280

Average 10088

Vw - Gas Volume passing through the wet test meter 0 - Time of calibration runVd - Gas Volume passing through the dry gas meter Pb - Barometric PressureTw - Temp of gas in the wet test meterTdi - Temp of the inlet gas of the dry gas meter

Tdo - Temp of the outlet gas of the dry gas meterTd - Average temp of the gas in the dry gas meter

oC oF1 2 3 4 5 60 0 0 0 00 00

100 100 100 100 1000 00500 500 500 500 5000 001000 1000 1000 1000 10000 00

1 - Channel Temps must agree with +- 5oF or 3oC

2 - Acceptable Temperature Difference less than 15

Wet Test Meter

Dry gas MeterWet Test

Meter

Gas Volume

50045 725

10154

685 102 10137

695085 100

2975

730 200 09943

110 10118

100

720

Dry Gas Meter

Temperatures

20 200

725

725

150 72515 17

Setting

Roto-meter

Liters per minute

12

Orifice Manometer

120

Long Cal and Temperature Cal Datasheet for VOST Dry Gas Meter Console

∆H - Pressure differential across orifice

Y - Ratio of accuracy of wet test meter to dry gas meter

Thermocouple Simulator

(Accuracy +- 1oF)

Baro Press in Hg ( Pb)

20 23

050 070

100

Temp

Difference 2 ()

Average Temperature

Reading

0

500100

1000

Channel Number

Temperature Reading from Individual Thermocouple Input 1

Select Temperature

Reference Temperature

( ) ( )

( )( ) 2

Vw

O460tw

460tdPb

H03170H

460tw613

HPbVd

)460td(PbVwY

lowast+

lowast

+lowast∆lowast

=∆

+lowast

+lowast

+lowastlowast=

( )( ) ( )( )( )

+

+minus+=

460FTempferenceRe

460FTempTest460FTempferenceReDiffTemp

o

oo

172

Long Cal Vost Box 8 9_21_2019

Calibrator MDW VOST Box Number VOST 8 Ambient Temp 73

Date 21-Sep-19 Wet Test Meter Number 10BB-1 Temp Reference Source

Dry Gas Meter Number 3602380

Resultsin H20

(∆H)liters (Vw)

liters (Vd)

oF (Tw)

Outlet oC (Tdo)

Inlet oC (Tdi)

Average oF (Td)

Time min (O)

Y

0000 2400 24002999 2400 24002999 2400 24000000 2400 24008960 2400 24008960 2400 24000000 2400 24009934 2400 24009934 2400 24000000 2400 240018700 2400 240018700 2400 2400

Average 10088

Vw - Gas Volume passing through the wet test meter 0 - Time of calibration runVd - Gas Volume passing through the dry gas meter Pb - Barometric PressureTw - Temp of gas in the wet test meterTdi - Temp of the inlet gas of the dry gas meter

Tdo - Temp of the outlet gas of the dry gas meterTd - Average temp of the gas in the dry gas meter

oC oF1 2 3 4 5 632 32 32 32 320 00212 212 212 212 2120 00932 932 932 932 9320 001829 1829 1829 1829 18290 01

1 - Channel Temps must agree with +- 5oF or 3oC

2 - Acceptable Temperature Difference less than 15

Wet Test Meter

Dry gas MeterWet Test

Meter

Gas Volume

30000 720

10093

750 118 10060

750035 90

3008

710 99 10099

100 10099

178

750

Dry Gas Meter

Temperatures

170 190

720

720

100 720

050

10 10

Setting

Roto-meter

Liters per minute

100

Orifice Manometer

050

1832

Long Cal and Temperature Cal Datasheet for VOST Dry Gas Meter Console

∆H - Pressure differential across orifice

Y - Ratio of accuracy of wet test meter to dry gas meter

Thermocouple Simulator

(Accuracy +- 1oF)

Baro Press in Hg ( Pb)

20 20

025 025

Channel Number

Temperature Reading from Individual Thermocouple Input 1 Temp

Difference 2 ()

Average Temperature

Reading

32

932212

Select Temperature

Reference Temperature

( ) ( )

( )( ) 2

Vw

O460tw

460tdPb

H03170H

460tw613

HPbVd

)460td(PbVwY

lowast+

lowast

+lowast∆lowast

=∆

+lowast

+lowast

+lowastlowast=

( )( ) ( )( )( )

+

+minus+=

460FTempferenceRe

460FTempTest460FTempferenceReDiffTemp

o

oo

173

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

APPENDIX F LIST OF PROJECT PARTICIPANTS

174

IASDATACHEMOURS15418002018DIVISION REPORT 11 2019-AMD 1212020

The following WESTON employees participated in this project

Paul Meeter Senior Project Manager

Jeff OrsquoNeill Senior Project Manager

Wes Fritz Senior Project Manager

Matt Winkeler Team Member

Kyle Schweitzer Team Member

Brandon Berger Team Member

175

  • ADPB5DBtmp
    • FIELD DATA CALCS
    • SemiVol Results
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        • results
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                • Data input
                • results
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                    • results
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                        • Data input
                          • ADPE9F3tmp
                            • results
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                                • Data input
                                • results
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