Richland, Washington 99352 JUN 2 1 2016...16-ECD-0026 Mr. John Martell, Manager OFFICE OF RIVER PROTECTION P.O. Box 450, MSIN H6-60 Richland, Washington 99352 JUN 2 1 2016 Radioactive

16-ECD-0026

Mr. John Martell, Manager

OFFICE OF RIVER PROTECTION P.O. Box 450, MSIN H6-60

Richland, Washington 99352

JUN 2 1 2016

Radioactive Air Emissions Section Washington State Department of Health 309 Bradley Blvd., Suite 201 Richland, Washington 99352 (Hanford Mailstop: B 1-42)

Mr. Martell:

RECEIVED

JUN 2 2 2016 WA Dept of Health

Radioactive Air Emissions Section

U.S. DEPARTMENT OF ENERGY, OFFICE OF RIVER PROTECTION SUBMITS RADIOACTIVE AIR EMISSIONS NOTICE OF CONSTRUCTION FOR THE OPERATION OF A PORTABLE EXHAUSTER FOR WATER INTRUSION MITIGATION IN THE 241-T TANK.FARM

The U.S. Department of Energy, Office of River Protection submits to the Washington State Department of Health for your review and approval the notice of construction (NOC) application TOC-ENV-NOC-5263, "Radioactive Air Emissions Notice of Construction for the Operation of a Portable Exhauster for Water Intrusion Mitigation in the 241-T Tank Farm," (Attachment 1).

This NOC application proposes the use of a portable exhauster to perform water intrusion mitigation on the tanks in the 241-T Tank Farm. The NOC application includes the mitigation of all tanks within the 241-T Tank Farm, with one portable exhauster operating to perform water intrusion mitigation on one tank at a time. The first tank scheduled for mitigation is Tank T-112.

Attachment 2, Notification of Off-Permit Change form is provided to the Washington State Department of Ecology.

If you have any questions, please contact Dennis W. Bowser, Environmental Compliance Division, (509) 373-2566.

ECD:DWB

Attachments: (2)

cc: See page 2

Mr. John Martell 16-ECD-0026

cc w/attachs: P .M. Gent, Ecology R.A. Kaldor, MSA R.J. Utley, WDOH Environmental Portal, LMSI WRPS Correspondence

cc w / o attachs: B.G. Erlandson, BNI R.S. Skeen, CTUIR S.L. Dahl, Ecology D. Zhen, EPA (Region 10, Seattle) G. Bohnee, NPT K. Niles, Oregon Energy E.T. Faust, RL J .W. Schmidt, WDOH J.A. Joyner, WRPS R. Jim, YN

-2- JUN 2 1 2016

Attachment 1 16-ECD-0026

(28 Pages Excluding Cover Sheet)

Notice of Construction Application TOC-ENV-NOC-5263

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Release Stamp

DOCUMENT RELEASE AND CHANGE FORM Prepared For the U.S. Department of Energy. Assistant Secretary for Environmental Management By Washington River Protection Solutions. LLC .. PO Box 850. Richland. WA 99352 Contractor For U.S. Department of Energy. Office of River Protection. under Contract DE-AC27-08RV14800

TRADEMARK DISCLAIMER: Reference herein to any specific commercial product, process, or service by trade name, trademark, DATE: ~ manufacturer. or otherwise. does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United 1 HANFORD States government or any agency thereof or its contractors or subcontractors. Printed in the United States of America.

1. Doc No: TOC-ENV-NOC-5263 Rev.00 Jun 02, 2016 RELEASE

2. Title: ~ Radioactive Air Emissions Notice of Construction for the Operation of a Portable Exhauster for Water Intrusion Mitigation in the 241-T Tank Farm

3. Project Number: f8I N/A 4. Design Verification Required: D Yes f8I No

5. USQ Number: ON/A 6. PrHA Number Rev. D N/A Clearance Review Restriction Type: TF-16-0901-S, RO PrHA-57286 00 public

7. Approvals

Title Name Sia nature Date Clearance Review RAYMER, JULIAR RAYMER, JULIA R 06/01 /2016 Design Verifier DYEKMAN , DALE L DYEKMAN, DALE L 05/31/2016 Document Control Approval MANOR, TAMI MANOR, TAMI 06/02/2016 Environmental Protection ALLEN, RUTH M I.ALLEN, RUTH M 06/01 /2016 Originator LEHMAN, KARROL D LEHMAN, KARROL D 06/01 /2016 PrHA Lead SHULTZ, MIL TON V SHULTZ, MIL TON V 06/02/2016 Responsible Manager BORNEMAN, LUCINDA E BORNEMAN, LUCINDA E 05/25/2016 USQ Evaluator WHEELER, RONNIE WHEELER, RONNIE 06/02/2016

8. Description of Change and Justification

This radioactive air emissions notice of construction application is for the use of a portable exhauster to perform water intrusion mitigation in the 241-T Tank Farm.

19. TBDs or Holds [81 N/A I 10. Related Structures, Systems, and Components

a. Related Building/Facilities D N/A b. Related Systems Ci-:1 N/A c. Related Equipment ID Nos. (EIN) f8I NIA 241 -T

11. Impacted Documents - Engineering f8I NIA

Document Number Rev. Title

12. Impacted Documents (Outside SPF):

NIA

13. Related Documents D N/A

Document Number Rev. Title RPP-CALC-60929 00 241-T Tank Farm Water Intrusion Mitigation Radioactive Air Emissions Calculations Supporting TOC-ENV-NOC-

5263

14. Distribution

Name Organization ALLEN, RUTH M RETRVL & CLOSURE/PROJ ENV CMPL ARTHUR, BILLIE L ENV PERMITTING BORNEMAN, LUCINDA E BASE OPS ENV COMPLIANCE CHAPIN, MILES K RETRVL & CLOSURE/PROJ ENV CMPL DYEKMAN, DALE L BASE OPS ENV COMPLIANCE HERRERA, DANIEL (ENVIRONMENTAL) C BASE OPS ENV COMPLIANCE JOYNER, JESSICA A ENVIRONMENTAL PROTECTION LEHMAN, KARROL D ENV PERMITTING [VOOGD, JEFFRY A BASE OPS ENV COMPLIANCE WILLIAMS, TANYA R ENVIRONMENTAL PROTECTION

SPF-001 (Rev.D1)

TOC-ENV-NOC-5263 Rev.00 6/2/2016 - 1 :19 PM

TOC-ENV-NOC-5263, Rev. 00

Radioactive Air Emissions Notice of Construction Application for the Operation of a Portable Exhauster for Water Intrusion Mitigation in the 241-T Tank Farm

Author Name: Karrol D. Lehman

Richland, WA 99352 U.S. Department of Energy Contract DE-AC27-08RV14800

EDT/ECN: NIA Cost Center: NI A

B&R Code: NIA

UC: NIA Charge NIA Code: Total Pages: 28

Key Words: 241-T Tank Farm, water intrusion mitigation, notice of construction application, radioactive air emissions, potential to emit, annual possession quantity, maximally exposed individual, portable exhauster, POR 06, 296-P-45

Abstract: This radioactive air emissions notice of construction application is for the use of a portable exhauster to perform water intrusion mitigation in the 241-T Tank Farm.

TRADEMARK DISCLAIMER. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otheiwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof or its contractors or subcontractors.

APPROVED By Julia Raymer at 1:50 pm, Jun 02, 2016

DATE: e HANFORD Jun 02, 2016 RELEASE

Release Approval Date Release Stamp

Approved For Public Release

A-6002-767 (REV 3)

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Radioactive Air Emissions Notice of Construction Application for the Operation of a Portable Exhauster for Water Intrusion Mitigation in the 241-T Tank Farm

Prepared by: Washington River Protection Solutions, LLC

Date Published May2016

Prepared for:

United States Department of Energy Office of River Protection P.O. Box 550 Richland, Washington

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CONTENTS

1.0 INTRODUCTION ..................................................................... ..................................... .... I

2.0 FACILITY NAME AND LOCATION ......... .................... .. ...... ...... ......................... .. ........ I

3.0 RESPONSIBLE MANAGER ............ .............. ......... .................. ........................................ 4

4.0 PROPOSED ACTION ... ..... .. .... ........ ............. .. ................................................................... 5

5.0 STATE ENVIRONMENTAL POLICY ACT .................. ............ ........ .............................. 5

6.0 CHEMICAL AND PHYSICAL PROCESSES .... .. ................... ......................................... 5

7.0 EXISTING AND PROPOSED ABATEMENT TECHNOLOGY ..................................... 6

8.0 APPLICABLE CONTROL TECHNOLOGY ORA WINGS ........... ................................... 7

9.0 RADIONUCLIDES OF CONCERN - POTENTIAL EMISSIONS .................................. 9

I 0.0 EFFLUENT MONITORING SYSTEM ... ................................. .. .. ............. .................... .. .. 9

11 .0 RADIONUCLIDE ANNUAL POSSESSION QUANTITY ..... ....................................... I 0

12.0 PHYSICAL FORM OF EACH RADIONUCLIDE IN THE INVENTORY ..... ........ .. .... l 0

13.0 RELEASE FORM OF EACH RADIONUCLIDE IN THE INVENTORY ..................... 10

14.0 RELEASE RATES .... ... ........................ ........ .......... ........... _ .......... ..................................... I I

15.0 DISTANCES AND DIRECTION OF THE MAXIMALLY EXPOSED INDIVIDUAL 11

16.0 TOTAL EFFECTIVE DOSE EQUIVALENT TO THE MAXIMALLY EXPOSED INDIVIDUAL ............................................................... .................................................... 12

17.0 COST FACTORS/BEST AVAILABLE RADIONUCLIDE CONTROL TECHNOLOGY OR AS LOW AS REASONABLY ACHIEVEABLE CONTROL TECHNOLOGY DEMONSTRATION ............................................................................ 12

18.0 DURATION OR LIFETIME .......... ................................................. .. .... .. ............ ............. 13

19.0 CONTROL TECHNOLOGY STANDARDS ................................... .................. ... ...... .... 13

19.1 ASME/ANSI AG-I, ASME/ANSI N509, ASME/ANSI N510, ASME/ANSI N51 l .............. .... ...... ....................................................................... 13

19.2 Quality Assurance ......................... ................ ..................... .... .......... ......... ...... ...... 14

I 9 .3 40 CFR 60, Appendix A ..................................................... ... ........................ ....... 14

19.4 ANSI/HPS N13.l ............ ... .... ................ ........... .................... .... ..... .. ..... ............ .... 14

20.0 REFERENCES .......... ..................... ................... ........... .... .................... .......... ... .. ..... ........ 15

Ill

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FIGURES

Figure 1. Hanford Site Map ................ .. ....................................................... ............................... ... 2 Figure 2. Location of Single- and Double-Shell Tank Farms in 200 East and 200 West Areas

of the Hanford Site ......................................................................................................... 3 Figure 3. Aerial View of241-T Tank Farm ............. .. ......... ...... ............. ........ .......... .. .................... 4 Figure 4. General Exhauster Layout. ....................................................... ...................................... 8

TABLES

Table 1. Coordinates of the 241-T Tank Farm ......... ......... .. ....................... .. .. ............ .... ... ............ I Table 2. Portable Exhauster 296-P-45 Information ............. ......... ............................... ..... ... .. ........ 6

APPENDIX

Appendix A Estimated Emissions and Potential-to-Emit Calculation for the 241-T Tank Farm Portable Exhauster. ........... ............... ......... ...... .. ..... ................ A-1

IV

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% OF ALARACT

ANSI APQ

ASME BARCT CAM

CAP-88 Ci CFR

DOE dP DST EPA ft HEPA HPS MEI mrem NOC

PNNL PTE RCW scfm SEPA

SST TEDE

TWINS USC WAC

WDOH yr

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LIST OF ABBREVIATIONS

percent

degrees Fahrenheit as low as reasonably achievable control technology American National Standards Institute annua l possession quantity American Society of Mechanical Engineers best available radionuclide control technology continuous air monitor Clean Air Act Assessment Package - 1988

cune Code of Federal Regulations U.S. Department of Energy differential pressure double-shell tank U.S. Environmental Protection Agency feet high efficiency particulate air

Health Physics Society maximally exposed individual

millirem notice of construction Pacific Northwest National Laboratory

potential-to-emit Revised Code of Washington standard cubic feet per minute State Environmental Policy Act single-shell tank

total effective dose equivalent Tank Waste Information Network System

United States Code Washington Administrative Code Washington State Department of Health year

V

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1.0 INTRODUCTION

This document is a notice of construction (NOC) application for operation of a portable exhauster to perform water intrusion mitigation in the 241 -T Tank Farm, a single-shell tank (SST) farm located in the 200 West Area of the Hanford Site. This NOC application is being submitted in accordance with Washington Administrative Code (WAC) 246-247-060, "Applications, registration and licensing," and 40 Code of Federal Regulations (CFR) 61.07, "Application for approval of construction or modification."

The tank fam1s store hazardous chemicals regulated under the Resource Conservation and Recovery Act and radioactive chemicals regulated under the Atomic Energy Act. The SSTs are used to store waste pending transfer to the double-shelled tanks (DST). The DSTs are used to store and treat waste, pending transfer to facilities that prepare the waste for disposal. The tanks contain mixed waste in the form of liquids and suspended or settled solids.

The Tank Waste Information Network System (TWINS) was used to extract radionuclide 241-T Tank Farm data in April 2016 to develop the inventory upon which to estimate potential emissions. The maximally exposed individual (MEI) was determined using dose conversion factors derived for use on the Hanford Site and published in DOE/RL-2006-29, Rev. 2, Calculating Potential-to-Emit Radiological Releases and Doses.

The estimated unabated and abated total effective dose equivalent (TEDE) to the offsite MEI associated with the portable exhauster are 5.lE+00 mrem/yr and 3.3E-03 mrem/yr, respectively (Appendix A).

2.0 FACILITY NAME AND LOCATION

Regulatory Citation: "Name and address of the facility and location, (latitude and longitude), of the emission unit(s)." (WAC 246-247-1 JO Appendix A(]))

The Hanford Site tank farms address is:

U.S. Department of Energy, Office of River Protection Hanford Site, 200 East/200 West Area Tank Farms Located approximately 25 miles north of Richland, Washington 99352

Table I shows the coordinates of the 241 -T Tank Farm in the 200 West Area of the Hanford Site. A map of the Hanford Site is shown in Figure 1. A map of the 200 Area tank farms is shown in Figure 2. Figure 3 shows an aerial view of the 241 -T Tank Farm.

Table 1. Coordinates of the 241-T Tank Farm.

Tank Farm Latitude Longitude

241 -T 46° 33' 60" N 119° 37' 71" w

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United States Department of Energy

Hanford Site ~SW

,-·1 N

W-±E ~

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Figure 1. Hanford Site Map.

.I,

- ------J i Gq6/r IJ ./ -----..... ...._~- ;

'1:..~'1 ,~-

' J ~-

2


l 241'.-------'""'

/

I I

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Figure 2. Location of Single- and Double-Shell Tank Farms in 200 East and 200 West Areas of the Hanford Site.

200 West Area 1 00 EastArea

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Figure 3. Aerial View of 241-T Tank Farm .

•

--4;1-l-~-4-~,.,.rf.~--:;:,--' ----...

" _,r

(241 ·T·106) 241·T·105 ( 241 ·T·104

........__... '--,,..,,'

~ .. ---- " ...--......

241 ·T-109 241·T·108) I 241·T·107

......_,.,

3.0 RESPONSIBLE MANAGER

Regulatory Citation: "Name, title, address, and phone number of the responsible manager. " (WAC 246-247-110 Appendix A (2))

Currently, the responsible facility manager is:

Kevin Smith, Manager U.S. Department of Energy Office of River Protection P.O. Box 550 Richland, Washington 99352

Phone: (509) 372-2315

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4.0 PROPOSED ACTION

Regulatory Citation: ''Jdent(fy the type of proposed action for which this application is submitted: (a) Construction of new emission unit(s); (b) Modification of existing emission unit(s); identify whether this is a significant modification - sign(ficant means the potential-to-emit airborne radioactivity at a rate that could increase the TEDE to the MEI by at least 1.0 mremlyr as a result of the proposed modification; (c) Mod[fication of existing unit(s), unregistered." (WAC 246-247-1 JO Appendix A (3))

This application modifies an existing emission unit license for a portable exhauster. It does not constitute a significant modification as the change does not result in a potential-to-emit (PTE) airborne radioactivity rate that could increase the TEDE to the MEI by at least 1.0 mrem/yr (WAC 246-247-30(25)). The purpose of this application is to provide information necessary to support Washington State Department of Health (WDOH) approval to operate a po11able exhauster in the 241-T Tank Farm for water intrusion mitigation.

5.0 STATE ENVIRONMENT AL POLICY ACT

Regulatory Citation: "If this project is subject to the requirements of the State Environmental Policy Act (SEPA) contained in chapter 197-11 WAC, provide the name of the lead agency, lead agency contact person, and their phone number. " (WAC 246-247-110 Appendix A (4))

This project fulfills the requirements of WAC 197-11 and Revised Code of Washington (RCW) 43.21C.030(2)(c) per RCW 43.21 C.150 which states, "The requirements ofRCW 43.21C.030(2)(c) pertaining to the preparation of a detailed statement by branches of government shall not apply when an adequate detailed statement has been previously prepared pursuant to the national environmental policy act of 1969, in which event said prepared statement may be utilized in lieu of a separately prepared statement under RCW 43. 21 C. 030(2)(c)." The document that meets the agencies review needs for the current proposal is:

DOE/EIS-0391 , Final Tank Closure and Waste Management Environmental Impact Statement for the Hanford Site, Richland, Washington, Volume 2, Book 2, Appendix E. 1.1 . I, Operations and Maintenance.

The contact person is Mary Beth Burandt, National Environmental Policy Act Document Manager, U.S. Department of Energy, Office of River Protection, and her phone number is (509) 372-8828.

6.0 CHEMICAL AND PHYSICAL PROCESSES

Regulatory CitaNon: "Describe the chemical and physical processes upstream of the emission unit(s)." (WAC 246-247-1 JO Appendix A (5))

The portable exhauster planned to perform water intrusion mitigation on tanks in the 241-T Tank Farm is 296-P-45 (POR 06). The exhauster serves as a confinement system for the radioactive particulates present in the tank headspace, removes flammable gases and vapors that evolve from the liquid surface, and removes heat. The exhauster removes entrained moisture, reduces the

s

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relative humidity, and filters out particulates present in the tank headspaces. Exhaust air is monitored and sampled for radioactive particulates during discharge from the stack to the atmosphere.

The 241-T Tank Farm SSTs are passively ventilated. Portable exhauster 296-P-45 will connect to a tank to perform water intrusion mitigation operations through active ventilation. Exhausters remove liquid using ambient air to evaporate moisture. Increasing the venti lation of the tank with the use of a forced-air exhauster will increase the evaporation rate and reduce the volume of liquid. Condensate will be returned to the tank undergoing mitigation. Evaporation through exhauster use is an effective removal process for the intrusion water liquids remaining in SSTs, and can be applied to all tanks in the 241-T Tank Farm needing water intrusion mitigation. Current project plans indicate that only one tank will be actively venti lated at a time.

7.0 EXISTING AND PROPOSED ABATEMENT TECHNOLOGY

Regulatory Citation: "Describe the existing and proposed (as applicable) abatement technology. Describe the bases for the use of the proposed system. Include expected efficiency of each control device, and the annual average volumetric flow rate(s) in meters3/sec for the emission unit(s)." (WAC 246-247-110 Appendix A (6))

High efficiency particulate air (HEPA) filters are proposed as best available radionuclide control technology (BAR CT) for the control of radionuclide particulates. HEPA filters have historically been accepted as BARCT by WDOH (Conklin 1992), and have been evaluated previously for controlling radionuclide particulates. No further evaluation has been performed.

HEPA filters are qualified by the manufacturer to remove 99.97% of particulates greater than or equal to 0.3 µm, when tested in accordance with ASME AG-1 , Section FC. The filters are in-place leak tested annually as described in Section 19.1. The abatement control system consists of a filtration train with two stages of HEPA filters in series and a stack. A pre-filter is located prior to the HEPA filters. The additional control technology components used to control moisture to keep the HEPA filters within the operational parameters include the demister and heater.

Table 2 identifies the abatement technology for the 296-P-45 portable exhauster and the associated flow rates.

Table 2. Portable Exhauster 296-P-45 Information.

Facility Stack Identification Required Abatement

Emission Unit Information Technology

241-T Tank Farm WDOH Emission Unit ID 1 - Pre-filter Stack height: 21.00 ft 50 1 - Heater Stack diameter: 0.50 ft

Unit alias: 2 - HEPA filters in series Maximum stack flow: 500 scfm

296-P-45 1 - Fan Average stack flow: 475 scfm 1 - Demister

Air emission inventory number: W-296P045-001

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8.0 APPLICABLE CONTROL TECHNOLOGY DRAWINGS

Regulatory Citation: "Provide conceptual drawings showing all applicable control technology components from the point of entry of radionuclides into the vapor space to release to the environment. " (WAC 246-247-110 Appendix A (7))

Water intrusion mitigation is performed by the operation of a portable exhauster which is an active ventilation system. Figure 4 shows a general portable exhauster design. The exhauster ventilation system will remove particulates and moisture, collect condensate, and reduce relative humidity in the exhaust stream. During portable exhauster operations, air from the tank will pass through a demister, if needed, and be heated before passing through a pre-filter, two HEPA filters in series, a fan, and discharged through a stack. The stack will contain a section that allows airflow measurements and radiological sample extraction. The pre-filter will increase the life of the HEPA filters by trapping the larger airborne particles to allow for a more economical operating system.

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Figure 4. General Exhauster Layout.

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9.0 RADIONUCLIDES OF CONCERN - POTENTIAL EMISSIONS

Regulatory Citation: "Jdent[fy each radionuclide that could contribute greater than ten percent of the potential- to-emit TEDE to the MEI, or greater than 0.1 mremlyr potential-to-emit TEDE to the MEI." (WAC 246-247-1 JO Appendix A (8))

The radionuclide emissions were calculated following the methods described in DOE/RL-2006-29, Rev. 2, which is currently accepted by WDOH and the U.S. Environmental Protection Agency (EPA) Region 10 for estimating emissions. The method used to estimate the radionuclides of concern was to multiply the annual possession quantity (APQ) of each radionuclide by the release fraction. WAC 246-24 7-30(2 I)( e) and 40 CFR 61.96 allow for the use of alternative methods. This application proposes using an alternative release fraction for the portable exhauster consistent with previous approvals granted by WDOH.

The radionuclides of concern for the portable exhauster are strontium-90 and cesium-13 7 which are estimated to contribute greater than 10% of the unabated PTE TEDE to the off site MEI and plutonium-239 which is estimated to contribute greater than 0.1 mrem/yr unabated PTE TEDE to the offsite MEI. Refer to Appendix A, Table A-1, Columns E and K. The estimate is based on the following assumptions.

• The largest inventory of each radionuclide in any individual 241-T Tank Farn1 SST was assumed to be in all 241-T Tank Farm tanks.

• The maximum 241-T Tank Farm inventory was multiplied by 3 to represent a potential 3-tank cascade. The 241-T Tank Farm tanks were constructed with groups of three tanks interconnected (e.g., Tanks T-110, T- 111, and T-112) so that when the first tank in a cascade was filled, it overflowed to the second tank, then to the third tank. It was conservatively assumed that the three tanks remain interconnected (i.e. , open to each other through a small pipe).

• The dose-per-unit release factors from Table 4-5 in DOE/RL-2006-29, Rev. 2, were applied to the unabated release curies for solids and liquids to calculate the unabated and abated TEDE to the MEI for particulates. The gaseous release factor of 1.0 was used only for tritium emissions since the processes described do not result in a temperature of 2 l 2°F or more.

10.0 EFFLUENT MONITORING SYSTEM

Regulatory Citation: "Describe the effluent monitoring system for the proposed control system. Describe each piece of monitoring equipment and its monitoring capability, including detection limits, for each radionuclide that could contribute greater than ten percent of the potential-toemit TEDE to the MEL or greater than 0.1 mrem/yr potential-to-emit TEDE to the MEL or greater than twenty-five percent of the TEDE to the MEI, after controls. Describe the method for monitoring or calculating those radionuclide emissions. Describe the method with detail siifficient to demonstrate compliance with the applicable requirements." (WA C 246-247-1 JO Appendix A (9))

The sampling system for the portable exhauster will be operated on a continuous basis and will include a record sampler that draws a representative sample stream from the exhaust stack and

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passes it through a pa,ticulate sample media. The sample media will be analyzed for total alpha, total beta, strontium-90, cesium- 137, and plutonium-239.

The portable exhauster is equipped with a continuous air monitor (CAM) for real-time continuous monitoring of the effluent for beta particulate radionuclides. The sampling and monitoring system meets the applicable requirements of ANSI/HPS N 13. l (1999).

11.0 RADIONUCLIDE ANNUAL POSSESSION QUANTITY

Regulatory Citation: "Indicate the annual possession quantity for each radionuclide." (WAC 246-247-JJ0AppendixA (10))

The APQ for operation of the portable exhauster is 7.69E+05 Ci (Appendix A). The appendix identifies a possible maximum radionuclide inventory that will be ventilated on an annual basis. This inventory was derived in the following manner.

Data for 46 radionuclides was downloaded from the TWINS database, Best-Basis Inventory -Best-Basis Summary as of April 2016. Downloaded data from TWINS was input into an EXCEL® spreadsheet for the 46 radionuclides that are listed in TWINS for each SST in 241-T Tank Farm. For development of the APQ, the largest radionuclide curie inventory from all of the SSTs in 241-T Tank Farm for each of the 46 radionuclides was selected from the downloaded TWINS data. The maximum tank inventory was multiplied by 3 to represent a potential 3-tank cascade. The maximum tank inventory with cascaded tanks was considered conservative.

12.0 PHYSICAL FORM OF EACH RADIONUCLIDE IN THE INVENTORY

Regulatory Citation: "Indicate the physical form of each radionuclide in invent01y: Solid, particulate solids, liquid, or gas. " (WAC 246-247-110 Appendix A (11))

The radionuclide inventory for the 241-T Tank Farm is present as solids, liquids, and gases.

13.0 RELEASE FORM OF EACH RADIONUCLIDE IN THE INVENTORY

Regulatory Citation: "Indicate the release form of each radionuclide in inventory: Particulate solids, vapor, or gas. Give the chemical form and ICRP 30 solubility class, if known." (WAC 246-247-JJ0AppendixA (12))

The radionuclides listed in Appendix A for the portable exhauster are assumed to be released as particulates, except for tritium, which is conservatively assumed to be released as a gas.

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14.0 RELEASE RATES

Regulatory Citation: (a) New emission unit(s) : Give predicted release rates without any emissions control equipment (the potential-to-emit) and with the proposed control equipment using the efficiencies described in subsection (6) of this section. (b) Modified emission unit(s): Give predicted release rates without any emissions control equipment (the potential-to-emit) and with the existing and proposed control equipment using the efficiencies described in subsection (6) of this section. Provide the latest year 's emissions data or emissions estimates. In all cases, indicate whether the emission unit is operating in a batch or continuous mode. (WAC 246-247-1 JO Appendix A (13))

The release rate for each radionuclide is listed in Appendix A. A release fraction of 8.0E-05 was used for particulates based on a study of emissions from simulated tank retrieval processes that was conducted by Pacific Northwest National Laboratories (PNNL) and documented in PNNL-14545 , Release Fraction Evaluation. WAC 246-247-030(2l)(e) allows for use of an alternative release fraction with WDOH approval. An alternative release fraction is requested based upon PNNL-14545, using the most conservative release fraction value of 8.0E-05 from the PNNL study. A release fraction of 1.00E+00 was used for gaseous emissions. Estimated unabated and abated emission releases from the proposed actions described in Section 4.0 are shown in Appendix A.

The emissions from the exhauster are reported annually in the radionuclide air emissions report for the Hanford Site. Calendar year 2014 emissions are reported in DOE/RL-2015-12.

15.0 DISTANCES AND DIRECTION OF THE MAXIMALLY EXPOSED INDIVIDUAL

Regulatory Citation: "Identify the MEI by distance and direction from the emission unit(s). The MEI is determined by considering distance, wind rose data, presence of vegetable gardens, and meat or milk producing animals at unrestricted areas surrounding the emission unit. '' (WAC 246-247-110 Appendix A (14))

The MEI is determined using Clean Air Act Assessment Package - 1988 (CAP-88) dispersion factors, which are derived for use on the Hanford Site and published in DOE/RL-2006-29, Rev. 2.

Dose-per-unit-release factors used for the portable exhauster came from Table 4-5 in DOE/RL-2006-29, Rev. 2, with effective release height less than 40 meters. Appendix A lists values for an offsite MEI and an onsite MEI. Calculated values from both the onsite and offsite MEI were examined to determine the maximum unabated dose (Appendix A, Table A-1, Columns E and H). DOE/RL-2006-29, Rev. 2, Table 4-2, indicates the offsite MEI for the 200 West Area is located 22,000 meters (13.7 miles) in a southeast direction to the Hanford Site boundary near the intersection of Route IO and State Route 240 (see Figure I).

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16.0 TOTAL EFFECTIVE DOSE EQUIVALENT TO THE MAXIMALLY EXPOSED INDIVIDUAL

Regulatmy Otation: "Calculate the TEDE lo the MEI using an approved procedure (see WAC 246-247-085). For each radionuclide identified in subsection (8) of this section, determine the TEDE to the MEI for existing and proposed emission controls, and without any emission controls (the potential-to-emit) using the release rates from subsection (13) of this section. Provide all input data used in the calculations." (WAC 246-247-1 JO Appendix A (15))

EPA has approved CAP-88 for demonstrating compliance with radionuclide air emissions standards (40 CFR 61.93). WAC 246-247-035 adopts by reference the approved methods specified in 40 CFR 61, Subpart H. DOE/RL-2006-29, Rev. 2, describes the approved methods and serves as a handbook to aid in estimating potential radionuclide emissions to the atmosphere and TEDE to both the onsite and offsite MEI.

The estimated unabated and abated TEDE to the offsite MEI that applies to the portable exhauster are documented in Appendix A.

Unabated emissions in curies were determined by applying release fraction of 8.0E-05 for particulates and liquids or 1.00E+00 for gaseous radionuclides directly to the APQ inventory values presented in Appendix A. The offsite unabated dose in mrem/yr to the MEI for the exhauster was determined by multiplying the unabated release in curies and the dose per unit release factor from Table 4-5 of DOE/RL-2006-29, Rev. 2, for a stack height of less than 40 meters. The offsite abated dose in mrem/yr was determined by dividing the offsite unabated dose by 2000, which is the usual HEPA filter decontamination factor that represents an in-place tested particulate removal efficiency of 99 .95%. The decontamination factor was not used for tritium. For this radionuclide, the unabated dose is equal to the abated dose since gaseous emissions are not controlled by HEPA filters.

17.0 COST FACTORS/BEST AVAILABLE RADIONUCLIDE CONTROL TECHNOLOGY OR AS LOW AS REASONABLY ACHIEVEABLE

CONTROL TECHNOLOGY DEMONSTRATION

Regulatory Citation: "Provide cost factors for construction, operation, and maintenance of the proposed control technology components and system, if a BARCT or ALARACT demonstration is not submitted with the NOC" (WAC 246-247-1 JO Appendix A (16))

Pursuant to WAC 246-247-110, Appendix A, Item 16, cost factors for construction, operation, and maintenance of proposed technology requirements are not required, as WDOH has provided guidance in a letter to DOE that HEPA filters are generally considered BARCT for particulate emissions (Conklin 1992). Because the radionuclides of concern are particulates, it is proposed that the control technology described in Section 7.0 be accepted as BARCT. Compliance with the substantive BARCT technology standards is described in Section 19.0.

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18.0 DURATION OR LIFETIME

Regulatory Citation: "Provide an estimate of the lifetime for the facility process with the emission rates provided in this application." (WAC 246-247-110 Appendix A (1 7))

The estimated emission rates have been calculated to address the facility process throughout the duration of water intrusion mitigation activities.

19.0 CONTROL TECHNOLOGY STANDARDS

Regulatory Citahon: "Indicate which of the following control technology standards have been considered and will be complied within the design and operation of the emission unit(s) described in this application: ASMEIANSI AG-1, Code on Nuclear Air and Gas Treatment (where there are conflicts in standards with the other listed references, this standard shall take precedence); ASMEIANSI N509, Nuclear Power Plant Air-Cleaning Units and Components; ASMEIANSI N510, Testing of Nuclear Air Treatment Systems; ASMEIANSI NQA-1, Quality Assurance Program Requirements for Nuclear Facilities; 40 CFR 60, Appendix A, Methods 1, lA, 2, 2A, 2C, 2D, 4, 5, and 17; ANSIIHPS Nl3.1-1999, Sampling and Monitoring Releases of Airborne Radioactive Substances.from the Stacks and Ducts a/Nuclear Facilities if the unit's potential-to-emit exceeds 0.1 mrem/yr TEDE to the MEI and the unit is required to meet ANSIIHPS NJ3.J-1999 underfederal regulations; ANSI NJJ.1-1969, Guide to Sampling Airborne Radioactive Materials in Nuclear Facilities if the unit's potential-to-emit exceeds 0.1 mrem/yr TEDE to the MEI and the unit is not required to meet ANSIIHPS N13.J-1999 under federal regulations. For each standard not so indicated, give reason(s) to support adequacy of the design and operation of the emission unit(s) as proposed." (WAC 246-247-1 JO Appendix A (18))

The following sections apply to the portable exhauster to be used in the 241-T Tank Farm.

19.1 ASME/ANSI AG-1, ASME/ANSI N509, ASME/ANSI N510, ASME/ANSI N511

Portable exhauster 296-P-45 was constructed consistent with the codes and standards that were applicable at the time of construction and is consistent with the intent of the requirements of the ASME AG-1-2012 code, as applicable.

The HEPA filters and filter housings meet the applicable requirements of ASME AG-I. The HEPA filters are in-place leak tested annually in accordance with a written procedure that addresses testing and visual inspections based on ASME N 510 and ASME N 511, and have a minimum efficiency of 99.95%. In addition, HEPA filter replacement requires in-place leak testing of the HEPA filters. Replacement filters will be manufactured and tested to meet the requirements of ASME AG- I prior to being placed into service.

The differential pressure (dP) across a filter increases as it traps and collects particles (i .e., filter loading). When the exhauster is operating, the dP for the pre-filters and HEPA filters are monitored and recorded.

The exhauster is designed with moisture separator equipment ( e.g., demister). The equipment assists in protecting the filters by removing moisture from the tank exhaust air stream.

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The exhauster utilizes heaters to reduce the relative humidity of the exhaust stream to ensure the relative humidity is reduced to below 70% as required by ASME N509-2002 to protect the HEPA filters. The exhauster operating temperature is monitored to ensure that the appropriate temperature is maintained, based on psychometric charts and engineering calculations.

The airstream temperature is also monitored to verify that it is below the 200°F limit established for continuous operation and 250°F limits established for periodic operation to protect the HEPA filters.

19.2 QUALITY ASSURANCE

WAC 246-247-075 requires that the quality assurance program be compatible with applicable national standards such as ANSI/ASME NQA-1 , ANSI/ASME NQA-2, QA/R-2, and QA/R-5. Quality assurance for tank farm radioactive emissions will be implemented as described in the current tank farm contractor revision of TFC-PLN-71, Quality Assurance Program Plan for Tank Farm Conh·actor Radioactive Air Emissions.

19.3 40 CFR 60, APPENDIX A

40 CFR 60, Appendix A includes technology standards that address volumetric flow rates. Stack effluent flow rates are necessary to compile emissions data and complete the required annual reports . Stack gas velocity and volumetric flow rate profiles are measured periodically following the requirements of 40 CFR 60, Appendix A, applicable to stacks smaller than 12 inches in diameter.

19.4 ANSI/HPS N13.1

The requirements of ANSI/HPS NI 3.1 apply to sampling and monitoring of actively ventilated stack emissions and suggest a graded approach to sampling and monitoring. The system has been designed to meet the intent of ANSI/HPS N 13.1-1999. A shrouded probe assembly is installed and the installation location meets the applicable requirements of ANSI/HPS N 13 . 1-1999.

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20.0 REFERENCES

00-05-006, 200 I, Hanford Air Operating Permit, Washington State Department of Ecology, Olympia, Washington.

40 CFR 60 Appendix A, "Standards of Performance for New Stationary Sources - Test Methods," Code of Federal Regulations, as amended.

40 CFR 61, "National Emission Standards for Hazardous Air Pollutants," Code of Federal Regulations, as amended.

40 CFR 61, Subpart H, National Emission Standards for Emissions of Radionuclides Other Than Radon From Department of Energy Facilities, Code of Federal Regulations, as amended.

42 USC 2011 , Atomic Energy Act of I 954, et seq.

42 USC 6901 , Resource Conservation and Recovery Act of 1976, et seq.

ANSI/HPS N13 .l , 1999, Sampling and Monitoring Releases of Airborne Radioactive Substances from Stacks and Ducts of Nuclear Facilities, American National Standards Institute/Health Physics Society, New York, New York.

ASME AG-I , 2012, Code on Nuclear Air and Gas Treatment, American Society of Mechanical Engineers, New York, New York.

ASME N509, 2002, Nuclear Power Plant Air Cleaning Units and Components, American Society of Mechanical Engineers, New York, New York.

ASME N5 l 0, 1989, Testing of Nuclear Air Treatment Systems, American Society of Mechanical Engineers, New York, New York.

ASME N51 l , 2007, In-Service Testing of Nuclear Air Treatment, Heating, Ventilating, and Air-Conditioning Systems, American Society of Mechanical Engineers, New York, New York.

DOE/EIS-0391 , Final Tank Closure and Waste Management Environmental Impact Statement for the Hanford Site, Richland, Washington, U.S. Department of Energy, Richland Operations Office, Richland, Washington.

DOE/RL-2006-29, Rev. 2, Calculating Potential-to-Emit Radiological Releases and Doses, U.S. Department of Energy, Richland Operations Office, Richland, Washington.

DOE/RL-2015-12, Radionuclide Air Emissions Report.for the Hanford Site, Calendar Year 2014, U.S. Department of Energy, Richland Operations Office, Richland, Washington.

External Letter AIR 92-107, A. W. Conklin, WDOH, to J. D. Bauer, RL, "Surveillance Report Generated by the DOH of KE and KW Basin on 09/16/1992," dated October 5, 1992.

PNNL-14545, 2004, Release Fraction Evaluation, Pacific Northwest National Laboratory, Richland, Washington

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RCW 43 .2 IC, "State Environmental Policy Act," Revised Code of Washington, as amended.

RPP-CALC-60929, "241-T Tank Farm Water Intrusion Mitigation Rad Air Emissions Calculations to Support TOC-ENV-NOC-5263."

Tank Waste Information Network System database, Queried April 2016, [Best Basis Inventory -Best Basis Summary], http ://twins.pnl.gov/twins.htm.

TFC-PLN-71, Quality Assurance Program Plan for Tank Farm Contractor Radioactive Air Emissions, Washington River Protection Solutions, Richland, Washington.

WAC 197-11 , "SEPA Rules," Washington Administration Code, as amended.

WAC 246-247, "Radiation Protection -Air Emissions," Washington Administrative Code, as amended.

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APPENDIX A

ESTIMATED EMISSIONS AND POTENTIAL-TO-EMIT CALCULATION FOR THE 241-T TANK FARM PORTABLE EXHAUSTER

A-I

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A-2

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Table A-1. Estimated Emissions for the 241-T Tank Farm Portable Exhauster with 3-Tank Cascade

Annual Release PTE Offsite Dose Offsite Off site Onsite Dose Onsite Onsite Contribution to C ontribution to Possession Fraction b Unabated Conversion Unabated Abated Conversion Unabated Abated Offsite Offsite Quantity• (unitless) Release Factor(" Dose to MEI Dose to MEI• Factor(" Dose to MEI Dose to MEI• Abated Dose Unabated Dose

Analyte (Ci) (Ci) /mrem/Ci/vr) (mrem/year) /mrem/vear) /mrem/Ci/,•r) (mren,/year) /mrem/vearl (%) (%)

COLUMN A B C D E F G H I J K

C=A•B E=c•o F=E/2000 H=C•G l=H/2000 J=F/Sum F K=E/Sum E

Tritium 6.93E+ol I.OOE+-00 6.93E+-OI 1.1 3E-05 7.83E-04 7.83E-04 2.22E-06 l.54E-04 l.54E-04 23.4% 0.0% Carbon- 14 l.2 1E+-01 8.00E-05 9.67E-04 8.77E-04 8.48E-07 4.24E-IO l.93E-04 1.87E-07 9.33E-1 1 0.0% 0.0% Nickel-59 l.22E+-O I 8.00E-05 9.74E-04 2.03E-04 l.98E-07 9.89E-1 I 3.85E-05 3.75E-08 1.88E-11 0.0% 0.0% Cobalt-60 4.35E+-O I 8.00E-05 3.48E-03 UIE-01 4.56E-04 2.28E-07 l.88E-01 6.54E-04 3.27E-07 0.0% 0.0% Nickel-63 I.I I E+-03 8.00E-05 8.90E-02 4.44E-04 3.95E-05 l.98E-08 8.I IE-05 7.22E-06 3.61E-09 0.0% 0.0% Selenium -79 5.64E-OI 8.00E-05 4.SIE-05 3.17E-02 l.43E-06 7. ISE-10 3.03E-03 l.37E-07 6.84E-11 0.0% 0.0% Strontium-90 2.80E+-05 8.00E-05 2.24E+-OI I.SOE-01 3.36E+o0 l .68E-03 4.37E-02 9.79E-OI 4.89E-04 50.2% 65.5% Yttrium-90 2.80E+-05 8.00E-05 2.24E+-01 6. l&E-05 l.38E-03 6.92E-07 9.21E-05 2 .06E-03 1.03E-06 0.0% 0.0% Zirconium-93 l.43E+-OI 8.00E-05 l.14E-03 7.SOE-04 8.93E-07 4.46E-10 8.44E-04 9 .66E-07 4.83E-IO 0.0% 0.0% Niobium-93 metastable l.23E+-OI 8.00E-05 9.84E-04 l.34E-04 l.32E-07 6.59E-1 I l.6 1E-04 I.SSE-07 7.92E-11 0.0% 0.0%

Technetium-99 1.45E+-02 8.00E-05 1.16E-02 2.21E-02 2.56E-04 l.28E-07 3.2 1E-03 3.72E-05 l.86E- 08 0.0% 0.0% Ruthenium- I 06 2.42E-07 8.00E-05 l.93E-I I 7.26E-03 l.40E-13 7.0IE-17 8.20E-03 l.SSE- 13 7.92E-17 0.0% 0.0% Cadmium-I I 3 metastable 1.16E+ol 8.00E-05 9.26E-04 4.39E-02 4.07E-05 2.03E-08 9.21E-03 8.53E-06 4.27E-09 0.0% 0.0% Antimony-125 6.69E+o0 8.00E-05 5.35E-04 1.28E-02 6.85E-06 3.43E-09 l.93E-02 L03E-05 5.16E-09 0.0% 0.0% Tin-126 1.94E+OO 8.00E-05 1.56E-04 3.0SE-02 4.74E-06 2.37E-09 2.25E-02 3.SOE-06 1.75E-09 0.0% 0.0% lodine-129 l.02E-01 8.00E-05 8.16E-06 l.35E-OI I.IOE-06 5.SIE-10 1.19E-02 9.71E-08 4.86E-1 I 0.0% 0.0% Cesium-134 l.26E-02 8.00E-05 I.OIE-06 9.39E-02 9.44E-08 4.72E-11 5.73E-02 5.76E-08 2.88E-1 I 0.0% 0.0%

Cesium-137 L02E+o5 8.00E-05 8. ISE+-00 L87E-OI L53E+-OO 7.65E-04 l.48E-OI l.21E+OO 6.06E-04 22.9% 29.9%

Bariwn-137 metastable 9.66E+-04 8.00E-05 7.73E+-OO 6.44E- 18 4.98E-17 2.49E-20 2.09E-1 8 l.62E-1 7 8.0SE-21 0.0% 0.0% Samarium-15 1 6.42E+o3 8.00E-05 5.14E-OI 2.0 IE-04 L03E-04 5. 16E-08 2.65E-04 l.36E-04 6.SIE-08 0.0% 0.0% Europium-152 8.25E-OI 8.00E-05 6.60E-05 1.20E-OI 7.92E-06 3.96E-09 l.85E-OI l.22E-05 6. I IE-09 0.0% 0.0% Europium-1 54 6.00E+-01 8.00E-05 4.SOE-03 9.46E-02 4.54E-04 2.27E-07 l.45E-O I 6.96E-04 3.48E-07 0.0% 0.0% Europium-1 55 2.43E+ol 8.00E-05 1.94E-03 2.97E-03 5.77E-06 2.89E-09 4.43E-03 8.6 1E-06 4.31E-09 0.0% 0.0%

Radium-226 3.27E-05 8.00E-05 2.62E-09 7. 17E-OI l.88E-09 9.38E-13 8.52E-Ol 2.23E-09 I.I I E- 12 0.0% 0.0% Acti11ium-227 8.49E-03 8.00E-05 6.79E-07 3. ISE+-00 2. 14E-06 l.07E-09 4.82E+OO 3.27E-06 l.64E-09 0.0% 0.0% Radium-228 1.73E-OI 8.00E-05 l.39E-05 5. 16E-OI 7. 16E-06 3.58E-09 3.92E-01 5.44E-06 2.72E-09 0.0% 0.0% Thorium-229 4.92E-02 8.00E-05 3.94E-06 3. 16E+OO l.24E-05 6.22E-09 4.76E+OO l.87E-05 9.37E-09 0.0% 0.0% Protactinium-231 1.07E-02 8.00E-05 8.54E-07 4. 14E+OO 3.54E-06 l.77E-09 6.28E+OO 5.37E-06 2.68E-09 0.0% 0.0%

A -3

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Table A-1. Estimated Emissions for the 241-T Tank Farm Portable Exhauster with 3-Tank Cascade

Annual Release PTE Offsite Dose Offsite Offsite Onsite Dose Onsite Onsite Contribution to Possession Frattion b Unabated Conversion Unabated Abated Convtrsion Unabated Abated Quantity • (unitless) Release Fattor c Dose to MEI Dose to MEI d Factor e Dose to MEI Dose to MEI d

Analytc (Cil (Ci) (mrem/Ci/vr) (mrent/year) (mrent/year) (mreot/Cii)•r) (mrem/ycar) (mrem/year) COLUMN

A B C D E F G H I C=A•B E=C•D F=E/2000 H=C•G l=W2000

Thorium-232 1.73E-OI 8.00E-05 l.39E-05 l.52Et-OO 2.I IE-05 l.05E-08 2.29E+OO 3.18E-05 1.59E-08 Uranium-232 6.69E-02 8.00E-05 5.35E-06 6.51E-OI 3.48E-06 1.74E-09 8.70E-OI 4.66E-06 2.33E-09 Uranium-233 4.32Et-OO 8.00E-05 3.46E-04 l.35E-OI 4.67E-05 2.33E-08 l.89E-OI 6.53E-05 3.27E-08 Uranium-234 7.86Et-OO 8.00E-05 6.29E-04 l.32E-Ol 8.30E-05 4.15E-08 l.85E-OI l.l6E-04 5.82E-08 Uranium-235 3.48E-OI 8.00E-05 2.78E-05 l.59E-OI 4.43E-06 2.21E-09 2.29E-OI 6.38E-06 3.19E-09 Uranimn-236 l.70E-OI 8.00E-05 l.36E-05 l.22E-Ol I.66E-06 8.32E-10 1.71E-Ol 2.33E-06 l.l7E-09 Neptunium-237 2.94E-OI 8.00E-05 2.35E-05 l.03Et-OO 2.42E-05 I.21E-08 l.55E+OO 3.65E-05 1.82E-08 Plutonium-238 l.57Et-OI 8.00E-05 l.26E-03 l.98Et-OO 2.49E-03 1.25E-06 3.02E+OO 3.SOE-03 l.90E-06 Uranimn-238 7.95Et-00 8.00E-05 6.36E-04 l.4IE-Ol 8.97E-05 4.48E-08 2.0IE-01 l.28E-04 6.39E-08 Plutonium-239 9.33Et-02 8.00E-05 7.46E-02 2.16Et-OO l.6IE-Ol 8.06E-05 3.29Et-OO 2.46E-Ol l.23E-04 Plutonium-240 l.36Et-02 8.00E-05 l.OSE-02 2. l6Et-OO 2.34E-02 I.I 7E-05 3.29E+OO 3.57E-02 l.78E-05 Americium-241 2.92Et-02 8.00E-05 2.34E-02 l.79Et-OO 4.ISE-02 2.09E-05 2.73E+OO 6.38E-02 3.19E-05 Plutonium-241 6.45Et-02 8.00E-05 5.16E-02 4.03E-02 2.0SE-03 l.04E-06 6.03E-02 3.l lE-03 l.56E-06 Curiwn-242 8.40E-02 8.00E-05 6.72E-06 l.80E-Ol l.21E-06 6.05E-10 2.78E-OI 1.87E-06 9.34E-IO Plutonium-242 6.12E-03 8.00E-05 4.90E-07 2.05Et-OO I.OOE-06 5.02E-10 3.13E+OO l.53E-06 7.66E-10 Ame,icium-243 7.92E-02 8.00E-05 6.34E-06 l.81E+OO l.l5E-05 5.73E-09 2.77E+OO l.76E-05 8.78E-09 Curium-243 2.79E-03 8.00E-05 2.23E-07 l.35Et-OO 3.02E-07 l.51E-IO 2.07Et-OO 4.63E-07 2.31E-I O Curium-244 6.09E-02 8.00E-05 4.87E-06 l.l2Et-OO 5.46E-06 2.73E-09 l.70E+OO 8.28E-06 4.14E-09

Totals 7.69E+oS l.3IE+o2 S,IE+oo 3.3E-03 2.SE+o0 t.4E-03

Notes: a Annual possession quantity from maximum 241-T Farm tank inventory for each radionuclide was multiplied by 3 to represent a potential 3-tank cascade.

Inventory from TWINS Best-Basis Inventory- Best-Basis Summary report generated April 2016. b Release fraction from PNNL-14545. Release Fraction Evaluation, Pacific Northwest National Laboratory, Richland, Washington. c Dose conversion factor based on DOE/RL-2006-29, Rev.2, Calculating Potential-to-Emil Radiological Releases and Doses, Table 4.5 for <40 meter elevation. d HEPA efficiency = 99.95%

Decontamination factor (gases)= I (for Uitium) Decontamination factor (particulates) = 2000 ( 1/1-efficicncy=l/l 0.9995)

A-4

Offsite Abated Dose

(%)

J

J=F/Sum F 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 2.4% 0.4% 0.6% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0%

100.0%

Contribution to Offsite

Unabated Dose (%)

K K=E/SumE

0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 3.1% 0.5% 0.8% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0%

100.0%

Attachment 2 16-ECD-0026

(1 Page Excluding Cover Sheet)

Notification of Off-Permit Change Form

NOTIFICATION OF OFF-PERMIT CHANGE Permit Number: 00-05-006, Renewal 2

This notification is provided to the Washington State Department of Ecology, Washington State Department of Health, and the U.S. Environmental Protection Agency as a notice of an off-permit change described as follows.

The following changes are allowed pursuant to WAC 173-401-724(1), WAC 173-401-724(2), and WAC 173-401-724(6): 1. Change is not specifically addressed or prohibited by the AOP terms and conditions; 2. Change does not weaken the enforceability of the existing AOP conditions; 3. Change is not a Title I modification or subject to the acid rain requirements under Title IV of the FCAA; 4. Change meets all applicable requirements and does not violate an existing permit term or condition; 5. Change has complied with applicable preconstruction review requirements established pursuant to

RCW 70.94.152.

Descriotion of the change: A notice of construction application, TOC-ENV-NOC-5263, is being submitted to the Washington State Department of Health for the operation of a portable exhauster for water intrusion mitigation in the 241-T Tank Farm.

Date of change: (To be provided in the agencv aooroval order.) The effective date will be determined by the Washington State Department of Health upon issuance of an approval order.

Describe the emissions resultin2 from the chan2e: Emission estimates are provided in TOC-ENV-NOC-5263.

Describe the new applicable requirements that will apply as a result of the change: (To be provided in the agency approval order.) Requirements will be provided in the agency approval order.

April 2013, Rev. 0

From: [email protected] on behalf of Canon.copier@ <[email protected]>

Sent: Thursday, June 23, 2016 11:50 AMTo: Berven, Shawna D (DOH)Subject: 9095Attachments: [email protected]_20160623_105028.pdf

Reply to: [email protected] <[email protected]> Device Name: DOHPRRIC-COPY-MX2615N Device Model: MX-2615NLocation: Richland

File Format: PDF (Medium)Resolution: 200dpi x 200dpi

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