APPENDIX C LABORATORY ANALYSES REPORTS€¦ · epa 200.2/6020a astm method d2974-00 epa methods 3570 & 8270. calculation surrogate bc wlap method: ph, electrometric, soil iso 15178:2000

APPENDIX C

LABORATORY ANALYSES REPORTS

[This report shall not be reproduced except in full without the written authority of the Laboratory.]

39549082NOT SUBMITTED

Job Reference: Project P.O. #:

CHEVRON FORESHORE IRALegal Site Desc: 10-056852C of C Numbers:

23-FEB-11

Lab Work Order #: L981078

Date Received:URS CANADA INC.

P.O. BOX 115071900 - 650 WEST GEORGIA STREETVANCOUVER BC V6B 4N7

ATTN: Michael GillFINAL 02-MAR-11 16:23 (MT)Report Date:

Version:

Certificate of Analysis

ALS CANADA LIMITED Part of the ALS Group A Campbell Brothers Limited Company

____________________________________________

Dean WattAccount Manager

ADDRESS: 8081 Lougheed Hwy, Suite 100, Burnaby, BC V5A 1W9 Canada | Phone: +1 604 253 4188 | Fax: +1 604 253 6700

Phone: 604-681-1672

02-MAR-11 16:23 (MT)

Sample ID Description

Client ID

Sampled Date

Grouping Analyte

Sampled Time

ALS LABORATORY GROUP ANALYTICAL REPORT

L981078 CONTD....

2PAGE of

Version: FINAL

5

SOIL

23-FEB-11

TRENCH WEST WEST WALL

L981078-1

17:30

Moisture (%)

pH (pH)

Copper (Cu) (mg/kg)

Nickel (Ni) (mg/kg)

Sulfur (S)-Total (mg/kg)

Zinc (Zn) (mg/kg)

Benzene (mg/kg)

Ethylbenzene (mg/kg)

Methyl t-butyl ether (MTBE) (mg/kg)

Styrene (mg/kg)

Toluene (mg/kg)

ortho-Xylene (mg/kg)

meta- & para-Xylene (mg/kg)

Xylenes (mg/kg)

Volatile Hydrocarbons (VH6-10) (mg/kg)

Surrogate: 4-Bromofluorobenzene (SS) (%)

Surrogate: 1,4-Difluorobenzene (SS) (%)

EPH10-19 (mg/kg)

EPH19-32 (mg/kg)

LEPH (mg/kg)

HEPH (mg/kg)

VPH (C6-C10) (mg/kg)

Surrogate: 3,4-Dichlorotoluene (SS) (%)

Acenaphthene (mg/kg)

Acenaphthylene (mg/kg)

Anthracene (mg/kg)

Benz(a)anthracene (mg/kg)

Benzo(a)pyrene (mg/kg)

Benzo(b)fluoranthene (mg/kg)

Benzo(g,h,i)perylene (mg/kg)

Benzo(k)fluoranthene (mg/kg)

Chrysene (mg/kg)

Dibenz(a,h)anthracene (mg/kg)

Fluoranthene (mg/kg)

Fluorene (mg/kg)

Indeno(1,2,3-c,d)pyrene (mg/kg)

16.6

6.94

16.7

8.74

<500

35.5

<0.040

<0.050

<0.20

<0.050

<0.050

<0.050

<0.050

<0.071

<100

85

87

<200

<200

<200

<200

<100

116

<0.050

<0.050

<0.050

<0.050

<0.050

<0.050

<0.050

<0.050

<0.050

<0.050

<0.050

<0.050

<0.050

Physical Tests

Metals

Volatile Organic Compounds

Hydrocarbons

Polycyclic Aromatic Hydrocarbons

02-MAR-11 16:23 (MT)


Client ID

Sampled Date

Grouping Analyte

Sampled Time


L981078 CONTD....

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Version: FINAL

5

SOIL

23-FEB-11

TRENCH WEST WEST WALL

L981078-1

17:30

2-Methylnaphthalene (mg/kg)

Naphthalene (mg/kg)

Phenanthrene (mg/kg)

Pyrene (mg/kg)

Surrogate: d10-Acenaphthene (SS) (%)

Surrogate: d12-Chrysene (SS) (%)

Surrogate: d8-Naphthalene (SS) (%)

Surrogate: d10-Phenanthrene (SS) (%)

Total PAHs (mg/kg)

<0.050

<0.050

<0.050

<0.050

78

74

64

85

<0.21


Reference Information 02-MAR-11 16:23 (MT)

L981078 CONTD....

4PAGE of

EPH-TUMB-FID-VA

LEPH/HEPH-CALC-VA

MET-200.2-CCMS-VA

MOISTURE-VA

PAH-L-TMB-MS-VA

PAH-SUM-CALC-VA

PAH-SURR-MS-VA

PH-1:2-VA

S-TOT-LECO-SK

VH-HSFID-VA

EPH in Solids by Tumbler and GCFID

LEPHs and HEPHs

Metals in Soil by CRC ICPMS

Moisture content

LL PAH by Rotary Extraction and GCMS

Sum of PAH’s

PAH Surrogates for Soils

CSR pH by 1:2 Water Leach

Total Sulphur by combustion method

VH in soil by Headspace GCFID

Extractable Hydrocarbons in Sediment/SoilThis analysis is carried out in accordance with the British Columbia Ministry of Environment, Lands and Parks (BCMELP) Analytical Method for Contaminated Sites "Extractable Petroleum Hydrocarbons in Solids by GC/FID, Version 2.1 July 1999". The procedure, based on EPA 3570, uses a rotary extraction technique to extract a subsample of the sediment/soil with a 1:1 mixture of hexane and acetone. The extract is then solvent exchanged to toluene or kept in hexane/acetone and analyzed by capillary column gas chromatography with flame ionization detection (GC/FID). EPHresults include Polycyclic Aromatic Hydrocarbons (PAH) and are therefore not equivalent to Light and Heavy Extractable Petroleum Hydrocarbons (LEPH/HEPH).

Accuracy target values for Reference Materials used in this method are derived from averages of long-term method performance, as certified values do not exist for the reported parameters.

Light and Heavy Extractable Petroleum Hydrocarbons in Solids. These results are determined according to the British Columbia Ministry of Environment, Lands, and Parks Analytical Method for Contaminated Sites "Calculation of Light and Heavy Extractable Petroleum Hydrocarbons in Solids or Water". According to this method, LEPH and HEPH are calculatedby subtracting selected Polycyclic Aromatic Hydrocarbon results from Extractable Petroleum Hydrocarbon results. To calculate LEPH, the individual results for Naphthalene and Phenanthrene are subtracted from EPH(C10-19). To calculate HEPH, the individual results for Benz(a)anthracene, Benzo(b)fluoranthene, Benzo(k)fluoranthene, Benzo(a)pyrene, Dibenz(a,h)anthracene, Indeno(1,2,3-c,d)pyrene, and Pyreneare subtracted from EPH(C19-32). Analysis of Extractable Petroleum Hydrocarbons adheres to all prescribed elements of the BCMELP method "Extractable Petroleum Hydrocarbons in Solids by GC/FID" (Version 2.1, July 20, 1999).

This analysis is carried out using procedures from CSR Analytical Method: "Strong Acid Leachable Metals (SALM) in Soil", BC Ministry of Environment, 26 June 2009, and procedures adapted from EPA Method 200.2. The sample is dried at 40 C, then ground to < 2 mm particle size usinga stainless steel flail grinder. A representative portion is digested with concentrated nitric and hydrochloric acids for 2 hours in an open vessel digestor at 95 degrees. Instrumental analysis of the digested exttract is by collision cell inductively coupled plasma - mass spectrometry (modifed from EPA Method 6020A).

Method Limitation: This method is not a total digestion technique. It is a very strong acid digestion that is intended to dissolve those metals that may be environmentally available. By design, elements bound in silicate structures are not normally dissolved by this procedure as they are not usually mobile in the environment.

This analysis is carried out gravimetrically by drying the sample at 105 C for a minimum of six hours.

This analysis is carried out using procedures adapted from "Test Methods for Evaluating Solid Waste" SW-846, Methods 3545 & 8270, published by the United States Environmental Protection Agency (EPA). The procedure uses a mechanical shaking technique to extract a subsample of the sediment/soil with a 1:1 mixture of hexane and acetone. The extract is then solvent exchanged to toluene. The final extract is analysed by capillary column gas chromatography with mass spectrometric detection (GC/MS). Surrogate recoveries may not be reported in cases where interferences fromthe sample matrix prevent accurate quantitation. Because the two isomers cannot be readily chromatographically separated, benzo(j)fluoranthene is reported as part of the benzo(b)fluoranthene parameter.

Total PAH represents the sum of all PAH analytes reported for a given sample. Note that regulatory agencies and criteria differ in their definitions of Total PAH in terms of the individual PAH analytes to be included.

This analysis is carried out in accordance with procedures described in the pH, Electrometric in Soil and Sediment method - Section B Physical/Inorganic and Misc. Constituents, BC Environmental Laboratory Manual 2007. The procedure involves mixing the dried (at <60°C) and sieved(No. 10 / 2mm) sample with deionized/distilled water at a 1:2 ratio of sediment to water. The pH of the solution is then measured using a standard pH probe.

The sample is ignited in a combustion tube at 960 degrees Celsius in an oxygenated environment. Within the following reduction tube, copper filings reduce SO3 to SO2. The SO2 gas is trapped in an adsorption column, then released to a thermal conductivity detector.

Reference:Vario Macro Elemental Analyzer Operating Manual. Elementar Americas Inc. (1997)

This analysis involves the extraction of a subsample of the sediment/soil with methanol. Aliquots of the methanol extract are then added to water and reagents, then heated in a sealed vial to equilibrium. The headspace from the vial is analyzed for Volatile Hydrocarbons (VH) by capillary column gas chromatography with flame-ionization detection (GC/FID). The methanol extraction and VH analysis are carried out in accordance with the British Columbia Ministry of Environment, Lands and Parks (BCMELP) Analytical Method for Contaminated Sites "Volatile Hydrocarbons in Solids by GC/FID"(Version 2.1 July 1999).

ALS Test Code Test Description

Soil

Soil

Soil

Soil

Soil

Soil

Soil

Soil

Soil

Soil

BCMELP CSR

BC MOE LABORATORY MANUAL (2005)

EPA 200.2/6020A

ASTM METHOD D2974-00

EPA METHODS 3570 & 8270.

CALCULATION

SURROGATE

BC WLAP METHOD: PH, ELECTROMETRIC, SOIL

ISO 15178:2000

B.C. MIN. OF ENV. LAB. MAN. (2009)

Method Reference** Matrix

Test Method References:

Version: FINAL

5


L981078 CONTD....

5PAGE of

VH-SURR-FID-VA

VOC7-L-HSMS-VA

VOC7/VOC-SURR-MS-VA

VPH-CALC-VA

XYLENES-CALC-VA

VH Surrogates for Soils

VOCs in soil by Headspace GCMS

VOC7 and/or VOC Surrogates for Soils

VPH is VH minus select aromatics

Sum of Xylene Isomer Concentrations

The soil methanol extract is added to water and reagents, then heated in a sealed vial to equilibrium. The headspace from the vial is transferred into a gas chromatograph. Target compound concentrations are measured using mass spectrometry detection.

These results are determined according to the British Columbia Ministry of Environment, Lands, and Parks Analytical Method for Contaminated Sites "Calculation of Volatile Petroleum Hydrocarbons in Solids or Water" (Version 2.1, July 20, 1999). According to this method, the concentrations of specific Monocyclic Aromatic Hydrocarbons (Benzene, Toluene, Ethylbenzene, Xylenes and Styrene) are subtracted from the collective concentration of Volatile Hydrocarbons (VH) that elute between n-hexane (nC6) and n-decane (nC10). Analysis of Volatile Hydrocarbons adheres to all prescribed elements of BCMELP method "Volatile Hydrocarbons in Solids by GC/FID" (Version 2.1, July 20, 1999).

Calculation of Total Xylenes

Total Xylenes is the sum of the concentrations of the ortho, meta, and para Xylene isomers. Results below detection limit (DL) are treated as zero. The DL for Total Xylenes is set to a value no less than the square root of the sum of the squares of the DLs of the individual Xylenes.

Soil

Soil

Soil

Soil

Soil

BCMELP CSR ANALYTICAL METHOD 2

EPA8260B, 5021, BC MELP

EPA METHODS 8260B & 524.2


EPA 8260B & 524.2

** ALS test methods may incorporate modifications from specified reference methods to improve performance.

The last two letters of the above test code(s) indicate the laboratory that performed analytical analysis for that test. Refer to the list below:

Laboratory Definition Code Laboratory Location

VA

SK

ALS LABORATORY GROUP - VANCOUVER, BC, CANADA

ALS LABORATORY GROUP - SASKATOON, SASKATCHEWAN, CANADA

GLOSSARY OF REPORT TERMSSurrogate � A compound that is similar in behaviour to target analyte(s), but that does not occur naturally in environmental samples. Forapplicable tests, surrogates are added to samples prior to analysis as a check on recovery.mg/kg � milligrams per kilogram based on dry weight of sample.mg/kg wwt � milligrams per kilogram based on wet weight of sample.mg/kg lwt � milligrams per kilogram based on lipid-adjusted weight of sample.mg/L � milligrams per litre.< - Less than.D.L. � The reported Detection Limit, also known as the Limit of Reporting (LOR).N/A � Result not available. Refer to qualifier code and definition for explanation.

Test results reported relate only to the samples as received by the laboratory.UNLESS OTHERWISE STATED, ALL SAMPLES WERE RECEIVED IN ACCEPTABLE CONDITION.Analytical results in unsigned test reports with the DRAFT watermark are subject to change, pending final QC review.

Chain of Custody Numbers:

10-056852

Version: FINAL

5

Printed on 3/1/2011 8:08:40 AM Page 1 of 1

ALS Sample ID: L981078-1Client Sample ID: TRENCH WEST WEST WALL

2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0Time - Minutes

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The Hydrocarbon Distribution Report is intended to assist you in characterizing hydrocarbon products that may be present in your sample. For further interpretation, a current library of reference products is available on www.alsglobal.com or upon request.

The scale at the bottom of the chromatogram indicates the approximate retention times of common petroleum products, and three n-alkane hydrocarbon marker compounds. Retention times may vary between samples by as much as 0.5 minutes.

Peak heights in this report are a function of the sample concentration, the sample amount extracted, the sample dilution factor, and the response scale at the left.

A "-L-" in the sample ID denotes a low level sample. A "-S-" denotes a silica gel cleaned sample.




CHEVRON FORESHORE IRALegal Site Desc: 10-050061C of C Numbers:

25-FEB-11





Version:



____________________________________________



Phone: 604-681-1672

07-MAR-11 16:47 (MT)


Client ID

Sampled Date

Grouping Analyte

Sampled Time


L981600 CONTD....

2PAGE of

* Please refer to the Reference Information section for an explanation of any qualifiers detected.

Version: FINAL

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SOIL

24-FEB-11 24-FEB-11 24-FEB-11 24-FEB-11 24-FEB-11

WEST TRENCH EAST [email protected]

WEST TRENCH ORGANO TRENCH

BOTTOM

WEST TRENCH SOUTH

[email protected]

WEST TRENCH NORTH

[email protected]

WEST TRENCH ANCHOR TRENCH

BOTTOM

L981600-1 L981600-2 L981600-3 L981600-4 L981600-5

Moisture (%)

Copper (Cu) (mg/kg)

Nickel (Ni) (mg/kg)


Zinc (Zn) (mg/kg)

Benzene (mg/kg)



Styrene (mg/kg)

Toluene (mg/kg)



Xylenes (mg/kg)




EPH10-19 (mg/kg)

EPH19-32 (mg/kg)

LEPH (mg/kg)

HEPH (mg/kg)





Anthracene (mg/kg)






Chrysene (mg/kg)



Fluorene (mg/kg)



18.3 17.8 17.5 20.5 15.0

28.0 24.6 24.0 18.6 32.6

7.74 8.13 7.55 8.20 7.46

700 <500 <500 1600 <500

59.4 53.3 49.2 62.3 55.1

<0.040 <0.040 <0.040 <0.040 <0.040

<0.050 <0.050 <0.050 <0.050 <0.050

<0.20 <0.20 <0.20 <0.20 <0.20

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.071 <0.071 <0.071 <0.071 <0.071

<100 <100 <100 140 <100

84 90 87 102 87

78 81 82 97 85

<200 <200 <200 1520 <200

<200 <200 <200 280 <200

<200 <200 <200 1520 <200

<200 <200 <200 280 <200

<100 <100 <100 140 <100

128 108 112 Not Reportable 103

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

Physical Tests

Metals


Hydrocarbons


SMI

07-MAR-11 16:47 (MT)


Client ID

Sampled Date

Grouping Analyte

Sampled Time


L981600 CONTD....

3PAGE of


Version: FINAL

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SOIL

24-FEB-11 24-FEB-11 24-FEB-11 24-FEB-11 24-FEB-11

WEST TRENCH EAST [email protected]

WEST TRENCH ORGANO TRENCH

BOTTOM

WEST TRENCH SOUTH

[email protected]

WEST TRENCH NORTH

[email protected]

WEST TRENCH ANCHOR TRENCH

BOTTOM

L981600-1 L981600-2 L981600-3 L981600-4 L981600-5

Naphthalene (mg/kg)


Pyrene (mg/kg)





Total PAHs (mg/kg)

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 0.076 <0.050

83 89 73 78 88

78 87 70 71 85

82 87 72 72 86

98 91 75 73 91

<0.21 <0.21 <0.21 <0.21 <0.21


Reference Information

SMI Surrogate recovery could not be measured due to sample matrix interference.

Qualifiers for Individual Parameters Listed:

Description Qualifier

07-MAR-11 16:47 (MT)

L981600 CONTD....

4PAGE of

EPH-TUMB-FID-VA

LEPH/HEPH-CALC-VA

MET-200.2-CCMS-VA

MOISTURE-VA

PAH-L-TMB-MS-VA

PAH-SUM-CALC-VA

PAH-SURR-MS-VA

S-TOT-LECO-SK

VH-HSFID-VA


LEPHs and HEPHs


Moisture content


Sum of PAH’s
















Soil

Soil

Soil

Soil

Soil

Soil

Soil

Soil

Soil

BCMELP CSR


EPA 200.2/6020A



CALCULATION


ISO 15178:2000




Version: FINAL

5


L981600 CONTD....

5PAGE of

VH-SURR-FID-VA

VOC7-L-HSMS-VA

VOC7/VOC-SURR-MS-VA

VPH-CALC-VA

XYLENES-CALC-VA










Soil

Soil

Soil

Soil

Soil





EPA 8260B & 524.2




VA

SK



GLOSSARY OF REPORT TERMSSurrogate � A compound that is similar in behaviour to target analyte(s), but that does not occur naturally in environmental samples. Forapplicable tests, surrogates are added to samples prior to analysis as a check on recovery.mg/kg � milligrams per kilogram based on dry weight of sample.mg/kg wwt � milligrams per kilogram based on wet weight of sample.mg/kg lwt � milligrams per kilogram based on lipid-adjusted weight of sample.mg/L � milligrams per litre.< - Less than.D.L. � The reported Detection Limit, also known as the Limit of Reporting (LOR).N/A � Result not available. Refer to qualifier code and definition for explanation.



10-050061

Version: FINAL

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ALS Sample ID: L981600-1Client Sample ID: WEST TRENCH EAST [email protected]

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ALS Sample ID: L981600-2Client Sample ID: WEST TRENCH ORGANO TRENCH BOTTOM

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ALS Sample ID: L981600-3Client Sample ID: WEST TRENCH SOUTH [email protected]

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ALS Sample ID: L981600-4Client Sample ID: WEST TRENCH NORTH [email protected]

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ALS Sample ID: L981600-5Client Sample ID: WEST TRENCH ANCHOR TRENCH BOTTOM

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IRA ACTIVITYLegal Site Desc: 10-051624C of C Numbers:

07-MAR-11





Version:



____________________________________________



Phone: 604-681-1672

16-MAR-11 14:14 (MT)


Client ID

Sampled Date

Grouping Analyte

Sampled Time


L984167 CONTD....

2PAGE of


Version: FINAL

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SOIL

07-MAR-11 07-MAR-11 07-MAR-11 07-MAR-11 07-MAR-11

EAST TRENCH SOUTH WALL @

6M EAST AND 0.6M DEPTH

EAST TRENCH NORTH WALL @ 5M EAST AND 1M

DEPTH

EAST TRENCH ANCHOR TRENCH

BOTTOM @ 5M EAST

EAST TRENCH ORGANOCLAY

TRENCH BOTTOM@ 5M EAST

EAST TRENCH WEST WALL @

0.5M

L984167-1 L984167-2 L984167-3 L984167-4 L984167-5

Moisture (%)

pH (pH)

Copper (Cu) (mg/kg)

Nickel (Ni) (mg/kg)


Zinc (Zn) (mg/kg)

Benzene (mg/kg)



Styrene (mg/kg)

Toluene (mg/kg)



Xylenes (mg/kg)




EPH10-19 (mg/kg)

EPH19-32 (mg/kg)

LEPH (mg/kg)

HEPH (mg/kg)





Anthracene (mg/kg)






Chrysene (mg/kg)



Fluorene (mg/kg)


14.6 14.0 15.9 14.2 17.1

7.52 7.33 7.47 7.34 6.70

28.0 29.9 32.6 25.5 26.7

7.27 8.31 7.30 6.29 9.19

<500 <500 <500 <500 <500

50.0 53.2 48.9 48.1 49.2

<0.040 <0.040 <0.040 <0.040 <0.040

<0.050 <0.050 <0.050 <0.050 <0.050

<0.20 <0.20 <0.20 <0.20 <0.20

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.071 <0.071 <0.071 <0.071 <0.071

<100 <100 <100 <100 <100

92 93 101 82 84

84 79 86 74 78

<200 <200 <200 <200 <200

<200 <200 <200 <200 <200

<200 <200 <200 <200 <200

<200 <200 <200 <200 <200

<100 <100 <100 <100 <100

95 94 74 88 89

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

Physical Tests

Metals


Hydrocarbons


16-MAR-11 14:14 (MT)


Client ID

Sampled Date

Grouping Analyte

Sampled Time


L984167 CONTD....

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Version: FINAL

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SOIL

07-MAR-11

DUP 2

L984167-6

Moisture (%)

pH (pH)

Copper (Cu) (mg/kg)

Nickel (Ni) (mg/kg)


Zinc (Zn) (mg/kg)

Benzene (mg/kg)



Styrene (mg/kg)

Toluene (mg/kg)



Xylenes (mg/kg)




EPH10-19 (mg/kg)

EPH19-32 (mg/kg)

LEPH (mg/kg)

HEPH (mg/kg)





Anthracene (mg/kg)






Chrysene (mg/kg)



Fluorene (mg/kg)


14.8

7.29

29.2

8.11

<500

52.2

<0.040

<0.050

<0.20

<0.050

<0.050

<0.050

<0.050

<0.071

<100

92

83

<200

<200

<200

<200

<100

113

<0.050

<0.050

<0.050

<0.050

<0.050

<0.050

<0.050

<0.050

<0.050

<0.050

<0.050

<0.050

<0.050

Physical Tests

Metals


Hydrocarbons


16-MAR-11 14:14 (MT)


Client ID

Sampled Date

Grouping Analyte

Sampled Time


L984167 CONTD....

4PAGE of


Version: FINAL

7

SOIL


EAST TRENCH SOUTH WALL @

6M EAST AND 0.6M DEPTH

EAST TRENCH NORTH WALL @ 5M EAST AND 1M

DEPTH

EAST TRENCH ANCHOR TRENCH

BOTTOM @ 5M EAST

EAST TRENCH ORGANOCLAY

TRENCH BOTTOM@ 5M EAST

EAST TRENCH WEST WALL @

0.5M

L984167-1 L984167-2 L984167-3 L984167-4 L984167-5


Naphthalene (mg/kg)


Pyrene (mg/kg)





Total PAHs (mg/kg)

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

81 79 76 88 79

74 72 67 84 68

79 77 74 84 79

81 79 77 92 79

<0.21 <0.21 <0.21 <0.21 <0.21


16-MAR-11 14:14 (MT)


Client ID

Sampled Date

Grouping Analyte

Sampled Time


L984167 CONTD....

5PAGE of


Version: FINAL

7

SOIL

07-MAR-11

DUP 2

L984167-6


Naphthalene (mg/kg)


Pyrene (mg/kg)





Total PAHs (mg/kg)

<0.050

<0.050

<0.050

<0.050

80

67

79

76

<0.21



DUP-H

LCS-ND

Duplicate results outside ALS DQO, due to sample heterogeneity.

Lab Control Sample recovery was slightly outside ALS DQO. Reported non-detect results for associated samples were unaffected.



16-MAR-11 14:14 (MT)

L984167 CONTD....

6PAGE of

EPH-TUMB-FID-VA

LEPH/HEPH-CALC-VA

MET-200.2-CCMS-VA

MOISTURE-VA

PAH-L-TMB-MS-VA

PAH-SUM-CALC-VA

PAH-SURR-MS-VA

PH-1:2-VA

S-TOT-LECO-SK


LEPHs and HEPHs


Moisture content


Sum of PAH’s


CSR pH by 1:2 Water Leach










This analysis is carried out in accordance with procedures described in the pH, Electrometric in Soil and Sediment method - Section B Physical/Inorganic and Misc. Constituents, BC Environmental Laboratory Manual 2007. The procedure involves mixing the dried (at <60°C) and sieved(No. 10 / 2mm) sample with deionized/distilled water at a 1:2 ratio of sediment to water. The pH of the solution is then measured using a standard pH probe.




Soil

Soil

Soil

Soil

Soil

Soil

Soil

Soil

Soil

BCMELP CSR


EPA 200.2/6020A



CALCULATION


BC WLAP METHOD: PH, ELECTROMETRIC, SOIL

ISO 15178:2000



Version: FINAL

7


L984167 CONTD....

7PAGE of

VH-HSFID-VA

VH-SURR-FID-VA

VOC7-L-HSMS-VA

VOC7/VOC-SURR-MS-VA

VPH-CALC-VA

XYLENES-CALC-VA












Soil

Soil

Soil

Soil

Soil

Soil






EPA 8260B & 524.2




VA

SK



GLOSSARY OF REPORT TERMSSurrogate - A compound that is similar in behaviour to target analyte(s), but that does not occur naturally in environmental samples. Forapplicable tests, surrogates are added to samples prior to analysis as a check on recovery.mg/kg - milligrams per kilogram based on dry weight of sample.mg/kg wwt - milligrams per kilogram based on wet weight of sample.mg/kg lwt - milligrams per kilogram based on lipid-adjusted weight of sample.mg/L - milligrams per litre.< - Less than.D.L. - The reported Detection Limit, also known as the Limit of Reporting (LOR).N/A - Result not available. Refer to qualifier code and definition for explanation.



10-051624

Version: FINAL

7

Printed on 11/03/2011 2:19:29 PM Page 1 of 1

ALS Sample ID: L984167-1Client Sample ID: EAST TRENCH SOUTH WALL @ 6M EAST AND 0.6M DEPTH

2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0Time - Minutes

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ALS Sample ID: L984167-2Client Sample ID: EAST TRENCH NORTH WALL @ 5M EAST AND 1M DEPTH

2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0Time - Minutes

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ALS Sample ID: L984167-3Client Sample ID: EAST TRENCH ANCHOR TRENCH BOTTOM @ 5M EAST

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ALS Sample ID: L984167-4Client Sample ID: EAST TRENCH ORGANOCLAY TRENCH BOTTOM @ 5M EAST

2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0Time - Minutes

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ALS Sample ID: L984167-5Client Sample ID: EAST TRENCH WEST WALL @ 0.5M

2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0Time - Minutes

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ALS Sample ID: L984167-6Client Sample ID: DUP 2

2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0Time - Minutes

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395490821


IRALegal Site Desc: 10-051284C of C Numbers:

08-MAR-11





Version:



____________________________________________



Phone: 604-681-1672

17-MAR-11 17:40 (MT)


Client ID

Sampled Date

Grouping Analyte

Sampled Time


L984599 CONTD....

2PAGE of

Version: FINAL

5

SOIL

08-MAR-11 08-MAR-11 08-MAR-11 08-MAR-11

EAST TRENCH SOUTH WALL @ 15M EAST AND

0.4M DEPTH

EAST TRENCH NORTH WALL @ 15M EAST AND

0.4M DEPTH

EAST TRENCH ANCHOR TRENCH@ 15M BOTTOM

EAST TRENCH ORGANO CLAY TRENCH @ 15M

BOTTOM

L984599-1 L984599-2 L984599-3 L984599-4

Moisture (%)

Copper (Cu) (mg/kg)

Nickel (Ni) (mg/kg)


Zinc (Zn) (mg/kg)

Benzene (mg/kg)



Styrene (mg/kg)

Toluene (mg/kg)



Xylenes (mg/kg)




EPH10-19 (mg/kg)

EPH19-32 (mg/kg)

LEPH (mg/kg)

HEPH (mg/kg)





Anthracene (mg/kg)






Chrysene (mg/kg)



Fluorene (mg/kg)



19.5 19.2 17.9 16.8

25.1 45.8 38.7 21.5

7.74 9.94 9.68 6.68

1100 1100 <500 500

57.5 71.9 66.3 57.3

0.085 <0.040 <0.040 <0.040

<0.050 <0.050 <0.050 <0.050

<0.20 <0.20 <0.20 <0.20

<0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050

<0.071 <0.071 <0.071 <0.071

<100 <100 <100 <100

75 83 78 82

78 87 81 83

<200 <200 <200 <200

<200 <200 <200 <200

<200 <200 <200 <200

<200 <200 <200 <200

<100 <100 <100 <100

98 107 110 109

<0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050

Physical Tests

Metals


Hydrocarbons


17-MAR-11 17:40 (MT)


Client ID

Sampled Date

Grouping Analyte

Sampled Time


L984599 CONTD....

3PAGE of

Version: FINAL

5

SOIL

08-MAR-11 08-MAR-11 08-MAR-11 08-MAR-11

EAST TRENCH SOUTH WALL @ 15M EAST AND

0.4M DEPTH


0.4M DEPTH


EAST TRENCH ORGANO CLAY TRENCH @ 15M

BOTTOM

L984599-1 L984599-2 L984599-3 L984599-4

Naphthalene (mg/kg)


Pyrene (mg/kg)





Total PAHs (mg/kg)

<0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050

82 81 76 99

84 74 76 80

82 81 76 97

81 88 75 96

<0.21 <0.21 <0.21 <0.21



L984599 CONTD....

4PAGE of

EPH-TUMB-FID-VA

LEPH/HEPH-CALC-VA

MET-200.2-CCMS-VA

MOISTURE-VA

PAH-L-TMB-MS-VA

PAH-SUM-CALC-VA

PAH-SURR-MS-VA

S-TOT-LECO-SK

VH-HSFID-VA

VH-SURR-FID-VA

VOC7-L-HSMS-VA


LEPHs and HEPHs


Moisture content


Sum of PAH’s



















Soil

Soil

Soil

Soil

Soil

Soil

Soil

Soil

Soil

Soil

Soil

BCMELP CSR


EPA 200.2/6020A



CALCULATION


ISO 15178:2000






Version: FINAL

5


L984599 CONTD....

5PAGE of

VOC7/VOC-SURR-MS-VA

VPH-CALC-VA

XYLENES-CALC-VA







Soil

Soil

Soil



EPA 8260B & 524.2




VA

SK






10-051284

Version: FINAL

5


ALS Sample ID: L984599-1Client Sample ID: EAST TRENCH SOUTH WALL @ 15M EAST AND 0.4M DEPTH

2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0Time - Minutes

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ALS Sample ID: L984599-2Client Sample ID: EAST TRENCH NORTH WALL @ 15M EAST AND 0.4M DEPTH

2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0Time - Minutes

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ALS Sample ID: L984599-3Client Sample ID: EAST TRENCH ANCHOR TRENCH @ 15M BOTTOM

2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0Time - Minutes

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ALS Sample ID: L984599-4Client Sample ID: EAST TRENCH ORGANO CLAY TRENCH @ 15M BOTTOM

2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0Time - Minutes

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IRALegal Site Desc: 10-034811C of C Numbers:

10-MAR-11





Version:



____________________________________________



Phone: 604-681-1672

21-MAR-11 15:30 (MT)


Client ID

Sampled Date

Grouping Analyte

Sampled Time


L985413 CONTD....

2PAGE of


Version: FINAL

7

SOIL


EAST TRENCH SOUTH WALL @ 25M EAND 0.4M

DEPTH


0.4M DEPTH

EAST TRENCH ORGANOCLOG

TRENCH @ 25M E BOTTOM


EAST TRENCH EAST WALL @

0.4M

L985413-1 L985413-2 L985413-3 L985413-4 L985413-5

Moisture (%)

Aluminum (Al) (mg/kg)

Antimony (Sb) (mg/kg)

Arsenic (As) (mg/kg)

Barium (Ba) (mg/kg)

Beryllium (Be) (mg/kg)

Bismuth (Bi) (mg/kg)

Cadmium (Cd) (mg/kg)

Calcium (Ca) (mg/kg)

Chromium (Cr) (mg/kg)

Cobalt (Co) (mg/kg)

Copper (Cu) (mg/kg)

Iron (Fe) (mg/kg)

Lead (Pb) (mg/kg)

Lithium (Li) (mg/kg)

Magnesium (Mg) (mg/kg)

Manganese (Mn) (mg/kg)

Molybdenum (Mo) (mg/kg)

Nickel (Ni) (mg/kg)

Phosphorus (P) (mg/kg)

Potassium (K) (mg/kg)

Selenium (Se) (mg/kg)

Silver (Ag) (mg/kg)

Sodium (Na) (mg/kg)

Strontium (Sr) (mg/kg)


Thallium (Tl) (mg/kg)

Tin (Sn) (mg/kg)

Titanium (Ti) (mg/kg)

Uranium (U) (mg/kg)

Vanadium (V) (mg/kg)

Zinc (Zn) (mg/kg)

Benzene (mg/kg)



Styrene (mg/kg)

Toluene (mg/kg)

23.8 14.6 18.0 22.2 23.5

11800 14700 14400 19600 21900

<0.10 0.15 <0.10 0.15 0.21

1.19 1.14 0.518 1.52 1.56

37.6 38.7 95.1 121 44.2

0.26 0.34 0.31 0.41 0.50

<0.20 <0.20 <0.20 <0.20 <0.20

<0.10 <0.10 <0.10 <0.10 <0.10

2060 3810 2660 4440 3350

11.3 12.9 12.3 18.0 19.1

6.02 8.22 6.39 12.2 8.98

17.0 25.4 20.9 38.7 30.8

16200 21500 21500 29800 28500

3.24 5.19 3.38 5.17 5.41

5.8 9.3 5.6 9.7 11.9

5030 6050 5790 7860 7410

178 309 252 537 277

<0.50 <0.50 <0.50 <0.50 0.61

5.35 6.98 6.30 9.98 9.58

<50 103 <50 243 322

1180 1100 1700 1220 1620

<0.20 <0.20 <0.20 <0.20 <0.20

<0.10 <0.10 <0.10 <0.10 <0.10

230 240 120 260 470

23.0 41.0 31.0 40.6 42.6

800 <500 <500 <500 800

0.062 0.058 0.078 0.093 0.072

<2.0 <2.0 <2.0 <2.0 <2.0

211 310 486 327 315

0.438 0.412 0.366 0.363 0.499

37.9 58.1 48.6 78.2 92.6

44.7 52.5 55.7 60.9 56.0

<0.040 <0.040 <0.040 <0.040 <0.040

<0.050 <0.050 <0.050 <0.050 <0.050

<0.20 <0.20 <0.20 <0.20 <0.20

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

Physical Tests

Metals


21-MAR-11 15:30 (MT)


Client ID

Sampled Date

Grouping Analyte

Sampled Time


L985413 CONTD....

3PAGE of


Version: FINAL

7

SOIL

09-MAR-11 09-MAR-11 09-MAR-11

EAST TRENCH BROWN SAMPLE @23M E BOTTOM

EAST TRENCH GREY SAMPLE @

23M EAST CENTRE WALL

DUP3

L985413-6 L985413-7 L985413-8

Moisture (%)

Aluminum (Al) (mg/kg)

Antimony (Sb) (mg/kg)

Arsenic (As) (mg/kg)

Barium (Ba) (mg/kg)

Beryllium (Be) (mg/kg)

Bismuth (Bi) (mg/kg)

Cadmium (Cd) (mg/kg)

Calcium (Ca) (mg/kg)

Chromium (Cr) (mg/kg)

Cobalt (Co) (mg/kg)

Copper (Cu) (mg/kg)

Iron (Fe) (mg/kg)

Lead (Pb) (mg/kg)

Lithium (Li) (mg/kg)

Magnesium (Mg) (mg/kg)

Manganese (Mn) (mg/kg)

Molybdenum (Mo) (mg/kg)

Nickel (Ni) (mg/kg)

Phosphorus (P) (mg/kg)

Potassium (K) (mg/kg)

Selenium (Se) (mg/kg)

Silver (Ag) (mg/kg)

Sodium (Na) (mg/kg)

Strontium (Sr) (mg/kg)


Thallium (Tl) (mg/kg)

Tin (Sn) (mg/kg)

Titanium (Ti) (mg/kg)

Uranium (U) (mg/kg)

Vanadium (V) (mg/kg)

Zinc (Zn) (mg/kg)

Benzene (mg/kg)



Styrene (mg/kg)

Toluene (mg/kg)

16.0 14.1 22.6

12600 17000 12100

<0.10 0.13 <0.10

0.638 1.11 0.718

79.0 38.0 44.0

0.27 0.33 0.27

<0.20 <0.20 <0.20

<0.10 0.22 0.11

2580 3010 2100

9.82 16.5 11.2

5.33 11.8 5.69

18.0 28.2 17.7

19600 26300 16300

3.09 4.06 3.17

4.6 7.6 5.6

4850 8280 5110

222 390 182

<0.50 <0.50 <0.50

5.44 10.1 5.10

<50 221 <50

1180 1230 1160

<0.20 <0.20 <0.20

<0.10 <0.10 <0.10

100 210 190

27.2 25.5 23.4

<500 <500 1200

0.074 0.092 0.062

<2.0 <2.0 <2.0

321 401 219

0.366 0.332 0.380

41.9 72.5 40.1

47.5 66.8 46.0

<0.040 <0.040 <0.040

<0.050 <0.050 <0.050

<0.20 <0.20 <0.20

<0.050 <0.050 <0.050

<0.050 <0.050 <0.050

Physical Tests

Metals


21-MAR-11 15:30 (MT)


Client ID

Sampled Date

Grouping Analyte

Sampled Time


L985413 CONTD....

4PAGE of


Version: FINAL

7

SOIL


EAST TRENCH SOUTH WALL @ 25M EAND 0.4M

DEPTH


0.4M DEPTH

EAST TRENCH ORGANOCLOG

TRENCH @ 25M E BOTTOM


EAST TRENCH EAST WALL @

0.4M

L985413-1 L985413-2 L985413-3 L985413-4 L985413-5



Xylenes (mg/kg)




EPH10-19 (mg/kg)

EPH19-32 (mg/kg)

LEPH (mg/kg)

HEPH (mg/kg)





Anthracene (mg/kg)






Chrysene (mg/kg)



Fluorene (mg/kg)



Naphthalene (mg/kg)


Pyrene (mg/kg)





<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.071 <0.071 <0.071 <0.071 <0.071

<100 <100 <100 <100 <100

85 82 88 80 84

82 82 86 82 85

<200 <200 <200 <200 <200

<200 <200 <200 <200 <200

<200 <200 <200 <200 <200

<200 <200 <200 <200 <200

<100 <100 <100 <100 <100

Not Reportable112 111 103 117

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

<0.050 <0.050 <0.050 <0.050 <0.050

88 86 82 87 85

64 62 60 61 61

88 85 84 85 84

85 84 80 83 80


Hydrocarbons


SURR-ND

21-MAR-11 15:30 (MT)


Client ID

Sampled Date

Grouping Analyte

Sampled Time


L985413 CONTD....

5PAGE of


Version: FINAL

7

SOIL

09-MAR-11 09-MAR-11 09-MAR-11

EAST TRENCH BROWN SAMPLE @23M E BOTTOM

EAST TRENCH GREY SAMPLE @

23M EAST CENTRE WALL

DUP3

L985413-6 L985413-7 L985413-8



Xylenes (mg/kg)




EPH10-19 (mg/kg)

EPH19-32 (mg/kg)

LEPH (mg/kg)

HEPH (mg/kg)





Anthracene (mg/kg)






Chrysene (mg/kg)



Fluorene (mg/kg)



Naphthalene (mg/kg)


Pyrene (mg/kg)





<0.050 <0.050 <0.050

<0.050 <0.050 <0.050

<0.071 <0.071 <0.071

<100 <100 <100

85 83 77

83 88 79

<200 <200 <200

<200 <200 <200

<200 <200 <200

<200 <200 <200

<100 <100 <100

127 96 121

<0.050 <0.050 <0.050

<0.050 <0.050 <0.050

<0.050 <0.050 <0.050

<0.050 <0.050 <0.050

<0.050 <0.050 <0.050

<0.050 <0.050 <0.050

<0.050 <0.050 <0.050

<0.050 <0.050 <0.050

<0.050 <0.050 <0.050

<0.050 <0.050 <0.050

<0.050 <0.050 <0.050

<0.050 <0.050 <0.050

<0.050 <0.050 <0.050

<0.050 <0.050 <0.050

<0.050 <0.050 <0.050

<0.050 <0.050 <0.050

<0.050 <0.050 <0.050

97 95 89

68 68 63

94 93 86

92 93 85


Hydrocarbons



DUP-H

SURR-ND

Duplicate results outside ALS DQO, due to sample heterogeneity.

Surrogate recovery was slightly outside ALS DQO. Reported non-detect results for associated samples were unaffected.



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L985413 CONTD....

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EPH-TUMB-FID-VA

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ALS Sample ID: L985413-1Client Sample ID: EAST TRENCH SOUTH WALL @ 25M EAND 0.4M DEPTH

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ALS Sample ID: L985413-2Client Sample ID: EAST TRENCH NORTH WALL @ 25M EAST AND 0.4M DEPTH

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ALS Sample ID: L985413-3Client Sample ID: EAST TRENCH ORGANOCLOG TRENCH @ 25M E BOTTOM

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ALS Sample ID: L985413-4Client Sample ID: EAST TRENCH ANCHOR TRENCH @ 25M BOTTOM

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ALS Sample ID: L985413-5Client Sample ID: EAST TRENCH EAST WALL @ 0.4M

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ALS Sample ID: L985413-6Client Sample ID: EAST TRENCH BROWN SAMPLE @23M E BOTTOM

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ALS Sample ID: L985413-7Client Sample ID: EAST TRENCH GREY SAMPLE @ 23M EAST CENTRE WALL

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ALS Sample ID: L985413-8Client Sample ID: DUP3

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APPENDIX D

QUALITY ASSURANCE AND QUALITY CONTROL

PROGRAM

APPENDIX D

QUALITY ASSURANCE AND QUALITY CONTROL PROGRAM

DATA QA/QC

In order to assure the integrity and defensibility of the data collected, rigorous QA/QC protocols were observed. These protocols ensured that all samples were properly collected, identified, stored, shipped, and documented. Written standard operating procedures (SOPs) for sample collection and storage, equipment decontamination, and sample chain of custody (COC) protocols were followed. Soil and groundwater samples were collected using sampling techniques discussed above. The use of these methods ensured the quality, soundness, and defensibility of the data obtained. The laboratory analytical data, once generated, was also proofed for inconsistencies and anomalies. Field duplicates were collected for QA/QC purposes.

Field Duplicate Samples

Field duplicate samples are two identical samples that are submitted to the laboratory with no indication that they are the same. The analysis of field duplicate samples provides an indication of the total precision of the sampling and analysis process. Field duplicate samples were collected and analyzed at a rate of approximately 10% of samples for a given analytical suite.

ANALYTICAL DATA INTERPRETATION

To confirm the quality of the laboratory analytical data, precision, accuracy, and completeness were considered.

Precision

Precision measures the reproducibility of repetitive measurements and is usually expressed in terms of imprecision. It is strictly defined as the degree of mutual agreement among multiple independent measurements as the result of repeated application of the same process under similar conditions.

Analytical precision is a measurement of the variability associated with the duplicate (i.e. two) or replicate (i.e. more than two) analyses of the same sample in the laboratory, and is determined by the analysis of matrix spike duplicate or laboratory duplicate samples.

Total precision is a measurement of the variability associated with the entire sampling and analysis process. It is determined by the analysis of duplicate or replicate field samples and incorporates any variability introduced by the analytical procedure, sample collection and handling procedures, and matrix factors. Precision data must be interpreted by taking into consideration these possible sources of variability.

Duplicate field samples are collected, and duplicate spiked or unspiked samples are analyzed to assess analytical precision. The results are assessed using the relative percent difference (RPD) between duplicate measurements. The equation used to calculate RPD for duplicate samples is:

100)2/)((

)(

BA

BARPD

where:

A = analytical result B = duplicate result.

Note that for RPDs the result can be a positive or a negative value. RPDs are often presented as absolute RPDs, in which case the absolute value of the RPD is reported, always resulting in a positive number. Reporting the absolute RPD results in a reduction in information, since, for instance, if a duplicate sample consistently returned higher results than the original sample, all RPD values would be negative and it may be an indication of a precision problem. In this case, if absolute RPD was reported, no indication would be forthcoming.

Total precision was determined by collecting field duplicate samples. These samples were collected and analyzed at a rate of approximately 10% of total samples for each analytical suite.

Analytical precision will be determined in the laboratory by running matrix spike/matrix spike duplicate (MS/MSD) pairs, or by running laboratory duplicate analyses. These samples will be analyzed at a rate of approximately 5% for each analytical suite.

Accuracy

Accuracy is a statistical measurement of correctness and includes components of random error (e.g. variability due to imprecision) and systematic error (e.g. bias). Therefore, accuracy reflects the total error associated with a measurement. A measurement is accurate when the value reported does not differ beyond acceptable limits from the true value or known concentration of the spike or standard. Acceptance criteria are indicated in the individual standardized analytical methods.

Analytical accuracy is typically measured by determining the percent recovery of known target analytes that are spiked into a field sample (i.e. a surrogate or matrix spike), or reagent water (i.e. laboratory control sample [LCS] or blank spike) before extraction at known concentrations. Percent recovery is calculated as:

100% B

AREC

where:

A = obtained value

B = true value.

Analytical accuracy was determined in the laboratory by the running of MS samples or laboratory control samples. These samples were analyzed at a minimum rate of 5% for each analytical suite.

Completeness

Completeness for this investigation was defined as the percentage of valid analytical results. Results made uncertain due to missed hold times, improper calibration, blank contamination, or poor calibration verification results would be deemed invalid. Results that may be flagged due to matrix effects are not considered invalid. Completeness for projects should exceed 90%. Completeness is calculated by:

100B

Asscompletene

where:

A = number of valid analytical results B = total number of analytical results.

QUALITY ASSURANCE AND QUALITY CONTROL ASSESSMENT

In order to assure the integrity and reliability of the data collected, rigorous QA/QC protocols described above were performed.

The certified analytical reports from the analytical laboratory were subjected to a quality assurance/quality control (QA/QC) review and data validation by URS. Laboratory and field QC sample results were evaluated to assess the quality of the individual sample results and overall method performance. The data evaluation performed included review of:

Blanks (laboratory method blanks and trip blanks)

Spikes (laboratory control spikes, matrix control spikes and surrogate spikes)

Duplicates (laboratory duplicates and field duplicates)

Sample integrity (chain-of-custody documentation, sample preservation, and holding time compliance)

The analytical data were reviewed and qualified following United States Environmental Protection Agency (USEPA) Contract Laboratory Program (CLP) National Functional Guidelines for Superfund Organic/Inorganic Data Review, document numbers USEPA-540-R-08-01 and USEPA-540-R-10-011 of June 2008 (Organic) and January 2010

(Inorganic). A “J” qualifier indicates that the analyte was positively identified, but that the associated numerical value is an approximate concentration of the analyte in the sample. A “UJ” qualifier indicates that the analyte was not detected above the reported sample quantitation limit (i.e., the laboratory reporting limit). However, the reported quantitation limit is approximate and may or may not represent the actual limit of quantitation necessary to accurately and precisely measure the analyte in the sample. An “R” qualifier indicates that the sample results were rejected due to serious deficiencies in the ability to analyze the sample and meet quality control criteria, and therefore, the presence or absence of the analyte could not be verified.

Five laboratory reports were reviewed for samples collected on February 23 through 24, 2011, and March 7 through 9, 2011, as part of the Foreshore IRA investigation. The samples were analyzed by ALS Laboratory Group (ALS) of Burnaby, British Columbia, in Canada. ALS uses laboratory nomenclature that differs from what is used in this QA/QC summary review. ALS uses the term Internal Reference Material (IRM) in the laboratory reports to mean matrix control spike. In addition, ALS uses a Calibration Reference Material (CRM) to evaluate equipment calibration.

Chain-of-custody documentation was complete and consistent. All samples were preserved and analyzed as required per method specifications. All reported results for the laboratory method blanks were non-detect (less than the laboratory reporting limit), indicating no evidence of contamination from laboratory instrumentation. No trip blanks were submitted during this sampling event.

All reported laboratory control spike (LCS) sample recoveries, matrix control spike (MS) sample recoveries and surrogate spike recoveries were within laboratory QC limits or were outside of laboratory QC limits but did not require qualification, with the exception of the following:

Low LCS recovery was observed for volatile hydrocarbons (VH6-10) in Batch WG1250338 of Report L984167. The volatile hydrocarbon (VH6-10) non-detections in samples EAST TRENCH SOUTH WALL@6M EAST and 0.6M DEPTH, EAST TRENCH NORTH WALL@5M EAST and 1M DEPTH, EAST TRENCH ANCHOR TRENCH BOTTOM@5M EAST, EAST TRENCH ORGANOCLAY TRENCH BOTTOM@5M EAST, EAST TRENCH WEST [email protected], and DUP2 were qualified as estimated and flagged with a “UJ.”

Field duplicate samples are collected in the field and analyzed to evaluate the heterogeneity of the matrices. The QA/QC review identifies relative percent difference (RPD) greater than 20 percent for compounds detected in the field sample and corresponding field duplicate sample. Two field duplicate samples, DUP2 and DUP3, were collected and analyzed during this sampling event. The following field sample/duplicate sample pairs had RPDs greater than 20 percent, indicating heterogeneity of the sample matrix:

The arsenic and sulfur RPDs between the field sample, EAST TRENCH SOUTH WALL@25M EAST and 0.4M DEPTH, and the corresponding field duplicate

sample, DUP3, were 49.5 percent (%) and 40%, respectively. The arsenic and sulfur results in samples EAST TRENCH SOUTH WALL@25M EAST and 0.4M DEPTH and DUP3 were qualified as estimated by ALS and flagged with a J.

These analytical data are of acceptable quality and may be used for their intended purposes, with the noted qualifications.

Documents

APPENDIX C LABORATORY ANALYSES REPORTS€¦ · epa 200.2/6020a astm method d2974-00 epa methods 3570 & 8270. calculation surrogate bc wlap method: ph, electrometric, soil iso 15178:2000