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OSD-T-151-0000711/19/2014 - 11:47 AM1 of 55DOCUMENT RELEASE AND CHANGE FORMPrepared For the U.S. Department of Energy,Assistant Secretary for Environmental ManagementBy Washington River Protection Solutions, LLC., PO Box 850, Richland, WA 99352Contractor For U.S. Department of Energy, Office of River Protection, under Contract DE-AC27-08RV148001a. Doc No: OSD-T-151-000071b. Project Number: X N/ARelease StampTRADEMARK DISCLAIMER: Reference herein to any specific commercial product, process, or service by trade name, trademark,manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United Statesgovernment or any agency thereof or its contractors or subcontractors.Printed in the United States of America.DATE:2. Document TitleOPERATING SPECIFICATIONS FOR THE DOUBLE-SHELL STORAGE TANKS3. Design Verification Required Yes X No4. USQ Number N/ATF-14-2114-DRev. 13Nov 19, 20145. PrHA Number N/ARev.6. USQ Screening:a.b.c.Does the change introduce any new failure modes to the equipment? Yes NoBasis is required for Yes:Does the change increase the probability of existing failure modes? Yes NoBasis is required for Yes:For Safety Significant equipment, does the change require a modification to Chapter 4 of the DSA and/or FRED?Basis is required for Yes: Yes No N/A7. Description of Change and Justification (Use Continuation pages as needed)OSD-T-151-00007 is revised from Revision 12 to Revision 13. Revised dome loading section to clarify requirement fordome elevation surveys and response for missed survey. Revised tank bump requirements to remove connection toadministrative control that no longer exists. Revised annulus video inspection frequency to accommodate enhancedvisual inspections resulting from letter of direction 13-TPD-0017, CONTRACT NO. DE-AC27-08RV14800 – DOUBLESHELL TANK (DST) ANNULUS VIDEO INSPECTIONS. Reference to former TSR administrative control key element forannulus visual inspection removed from technical basis section.8. ApprovalsTitleClearance ReviewNameWASHINGTON, MARGUERITEDesign AuthorityPETERS, RAYCheckerGARFIELD, JOHNDocument Control ApprovalWASHINGTON, MARGUERITEEnvironmental ProtectionVOOGD, JEFFRY AOriginatorJOSLYN, CAMERON CResponsible EngineerJOSLYN, CAMERON CResponsible Engineering ManagerBAIDE, DANUSQ EvaluatorDOSRAMOS, EDUARDOSignatureWASHINGTON, MARGUERITEPETERS, RAYGARFIELD, JOHNWASHINGTON, MARGUERITEVOOGD, JEFFRY AJOSLYN, CAMERON CJOSLYN, CAMERON CBAIDE, DANDOSRAMOS, 49. Clearance Review:Restriction Type: PublicUndefinedUnclassified Controlled Nuclear Information (UCNI)Export Control Information (ECI)Official Use Only Exemption 2-Circumvention of Statute (OUO-2) Official Use Only Exemption 3-Statutory Exemption (OUO-3)Official Use Only Exemption 4-Commercial/Proprietary (OUO-4)Official Use Only Exemption 5-Privileged Information (OUO-5)Official Use Only Exemption 6-Personal Privacy (OUO-6)Official Use Only Exemption 7-Law Enforcement (OUO-7)1SPF-001 (Rev.0)

OSD-T-151-0000711/19/2014 - 11:47 AMDOCUMENT RELEASE AND CHANGE FORM2 of 55Doc No: OSD-T-151-00007 Rev. 1310. Distribution:NameOrganizationANDERSON, RICK AAN TEAM AREA DAY SHIFTBAIDE, DANTFP ENGINEERINGBERGMAN, SCOTT MELECTRICAL/AREA/242A-EVAP ENGBINGHAM, JAMES DELECTRICAL/AREA/242A-EVAP ENGBROWN, RODT/TX/TY/SX/SY/S/U FARM TEAMCATO, DIANE MNUCLEAR SAFETYDALE, ROBELECTRICAL/AREA/242A-EVAP ENGGAUCK, GREGORY JWASTE STORAGE/TRANSFER ENGHULL, KEVIN JELECTRICAL/AREA/242A-EVAP ENGHURSON, PATRICK JST TEAM AREA DAY SHIFTKIRCH, NICKBASE OPERATIONS PROCESS ENGRNGLANEY, TERANCE (TERRY)WASTE STORAGE/TRANSFER ENGLITTLE, DAVID BENGINEERINGMENDOZA, RUBEN EWASTE STORAGE/TRANSFER ENGNICHOLSON, ROBERT S (BOB)WASTE STORAGE/TRANSFER ENGPETERS, RAYCOGNIZANT SYSTEM ENGINEERINGREEPLOEG, GRETCHEN EWASTE STORAGE/TRANSFER ENGSHERIDAN, MIKE JCOGNIZANT SYSTEM ENGINEERINGSMITH, KELLY MAZ TEAM AREA DAY SHIFTSTRASSER, DAVID WA/AX/AY/AZ FARM TEAMTUCKER, RONAN/B/BX/BY/C FARM TEAMTURKNETT, JERRY CCOGNIZANT SYSTEM ENGINEERINGVON BARGEN, BRIAN HEV AREA-242A/AW/AP11. TBDs or HoldsX N/A 12. Impacted Documents – EngineeringDocument NumberRev. Title N/A13. Other Related DocumentsDocument 020807 SH 00114H-14-020807 SH 00115H-14-020807 SH 00116H-14-020807 SH 00214H-14-020807 SH 00212H-14-020807 SH 00213H-14-020807 SH 00306H-14-020807 SH 00415H-14-020807 SH 00414H-14-020807 SH 00505H-14-020807 SH 00506H-14-020807 SH 00607H-14-020807 SH 00608H-14-020807 SH 00606H-14-020807 SH 00702 N/ATitleSPECIFICATION FOR PRIMARY AND SECONDARY STEEL TANKS PROJECT B-101 241SY TANK FARMPRIMARY AND SECONDARY STEEL TANKS 241-AP TANK FARMDST ISOLATION PROJECT WEATHERSEAL OF 241-AZ-ELDP-101/102 AND 241-AZ-LDP-101 & 102WASTE TRANSFER SYSTEM (WT) O & M SYSTEM P&IDWASTE TRANSFER SYSTEM (WT) O & M SYSTEM P&IDWASTE TRANSFER SYSTEM (WT) O & M SYSTEM P & IDWASTE TRANSFER SYSTEM (WT) O & M SYSTEM P & IDWASTE TRANSFER SYSTEM (WT) O & M SYSTEM P&IDWASTE TRANSFER SYSTEM (WT) O & M SYSTEM P&IDWASTE TRANSFER SYSTEM (WT) O & M SYSTEM P & IDWASTE TRANSFER SYSTEM (WT) O & M SYSTEM P & IDWASTE TRANSFER SYSTEM (WT) O & M SYSTEM P&IDWASTE TRANSFER SYSTEM (WT) O & M SYSTEM P&IDWASTE TRANSFER SYSTEM (WT) O&M SYSTEM P&IDWASTE TRANSFER SYSTEM (WT) O & M SYSTEM P&IDWASTE TRANSFER SYSTEM (WT) O&M P&IDWASTE TRANSFER SYSTEM (WT) O & M P&IDWASTE TRANSFER SYSTEM (WT) O&M SYSTEM P&ID2SPF-001 (Rev.0)

OSD-T-151-0000711/19/2014 - 11:47 AMDOCUMENT RELEASE AND CHANGE FORMH-14-020807 SH 007H-14-020807 SH 008H-14-020807 SH 008H-14-020807 SH 009H-14-020807 SH 009H-14-020807 SH 009H-14-020807 SH 010H-2-37703 SH 001H-2-37772 SH 001H-2-37787 SH 001H-2-37787 SH 002H-2-64306 SH 001H-2-64317 SH 001H-2-64419 SH 001H-2-64419 SH 002H-2-64419 SH 003H-2-64428 SH 001H-2-64430 SH 001H-2-64448 SH 001H-2-64449 SH 001H-2-64449 SH 001H-2-64449 SH 002H-2-67248 SH 001H-2-67316 SH 001H-2-67317 SH 001H-2-67317 SH 002H-2-67349 SH 001H-2-68366 SH 001H-2-68385 SH 001H-2-70306 SH 001H-2-70394 SH 001H-2-70413 SH 001H-2-70413 SH 002H-2-71160 SH 001H-2-71160 SH 002H-2-71905 SH 001H-2-71975 SH 001H-2-71975 SH 002H-2-71997 SH 001H-2-71997 SH 002H-2-90444 SH 001H-2-90444 SH 002H-2-90444 SH 003H-2-90534 SH 001H-2-90851 SH D05C0505A05B05F05E05G023 of 55Doc No: OSD-T-151-00007 Rev. 13WASTE TRANSFER SYSTEM (WT) O&M SYSTEM P&IDWASTE TRANSFER SYSTEM (WT) O&M SYSTEM P&IDWASTE TRANSFER SYSTEM (WT) O&M SYSTEM P&IDWASTE TRANSFER SYSTEM (WT) O & M SYSTEM P&IDWASTE TRANSFER SYSTEM (WT) O & M SYSTEM P&IDWASTE TRANSFER SYSTEM (WT) O & M SYSTEM P&IDWASTE TRANSFER SYSTEM (WT) O & M SYSTEM P&IDTK BASE ODRAIN LEAK DETECTION SUMP PLNS DETS TKS 241SY101,10TANK CROSS SECTION 241SY TANK FARMPIPING PLAN & DETAILS LEAK DETECTION PIT 241-SY-01C, 02C & 03CPIPING PLAN & DETAILS LEAK DETECTION PIT 241-SY-01C, 02C & 03CTANK FOUNDATION PLANLEAK DETECTION PIT SLAB DRAIN PIPINGTANK RISER DETAILSTANK RISER DETAILSTANK RISER DETAILSDUAL LEAK DETECT PIT PIPING SECT DET TK-101 ENCASE.241AYTANK FARM LEAK DETECT PIT PIPING SECT DETSTANK PENETRATION DETAILSTANK ELEVATION DETAILSTANK ELEVATION AND DETAILSTANK ELEVATION & DETAILSTK BASE DRAIN LEAK DETECTION SUMP PLANS DETAILS TK241AZ-101 PENETRATION DETS TK 101 102 241-AZ TANK FARMTANKS 101 & 102 SECTION & DETAILS 241-AZ TANK FARMTANKS 101 & 102 SECTION & DETAILS 241-AZ TANK FARMAIR LIFT CIRCULATOR RISER EXTENSION DETAILSDUAL LEAK DETECTION PIT PIPING SECTION DETAILS TK-102 ENCASELEAK DETECTION PIT PIPING SECTIONS DETAILS TANK 101CIVIL LEAK DETECTION DRAIN AND SUMP PLANS AND DETAILSTANK CROSS SECTIONPIPING PLAN & DETAILS LEAK DETECTION PIT 241-AW-01C THRU 06CPIPING PLAN & DETAILS LEAK DETECTION PIT 01C THRU 06CTANK CROSS SECTION 241-AN-107 TANKTANK CROSS SECTION 241-AN-107 TANKCIVIL LEAK DETECTION DRAIN AND SUMP PLANS AND DETAILSTANK CROSS SECTION 241-AN TANKSTANK CROSS SECTION 241-AN TANKSPIPING PLAN & DETAILS LEAK DETECTION PIT 241-AN-01C THRU 07CPIPING PLAN & DETAILS LEAK DETECTION PIT 241-AN-O1C THRU 07CPIPING LEAK DETECTION DRAIN PLANS AND SECTIONSPIPING LEAK DETECTION DRAIN PLANS AND SECTIONSPIPING LEAK DETECTION DRAIN PLANS AND SECTIONSTANK CROSS SECTION 241-AP TANKSPIPING SECTIONS & DETAILS LEAK DETECTION WELL 241-AP-03C & 05CPROJECT W-320 HIGH VACUUM 241-AY-102 ANNULUS VENTILATION SYSTEM OPERABILITY TEST RPORTTank Farms Waste Transfer Compatibility ProgramTank Farms Waste Transfer Compatibility ProgramTank Farms Waste Transfer Compatibility ProgramTank Farms Waste Transfer Compatibility ProgramTank Farms Waste Transfer Compatibility ProgramTank Farms Waste Transfer Compatibility ProgramTANK FARMS DOCUMENTED SAFETY ANALYSISTANK FARMS DOCUMENTED SAFETY ANALYSISTANK FARMS DOCUMENTED SAFETY ANALYSISTANK FARMS DOCUMENTED SAFETY ANALYSISTANK FARMS DOCUMENTED SAFETY ANALYSISTANK FARMS DOCUMENTED SAFETY ANALYSISTANK FARMS DOCUMENTED SAFETY ANALYSISTANK FARMS DOCUMENTED SAFETY ANALYSISTECHNICAL BASIS FOR THE TANK BUMP ACCIDENT AND ASSOCIATED REPRESENTATIVE HAZARDOUS3SPF-001 (Rev.0)

OSD-T-151-0000711/19/2014 - 11:47 AMDOCUMENT RELEASE AND CHANGE 300SD-WM-TI-150004 of 55Doc No: OSD-T-151-00007 Rev. 13CONDITIONSEnvironmental Specification RequirementsEnvironmental Specification RequirementsEnvironmental Specification RequirementsEnvironmental Specification RequirementsTECHNICAL BASIS FOR TEMPERATURE CONTROL TO PREVENT TANK BUMPS IN 241-AN-106HANFORD WASTE TANK BUMP ACCIDENT AND CONSEQUENCE ANALYSISDOUBLE-SHELL TANK ANNULUS VENTILATION ENGINEERING STUDYTechnical Basis for the Chemistry Control ProgramTECHNICAL BASIS FOR THE CHEMISTRY CONTROL PROGRAMEXPERT PANEL OVERSIGHT COMMITTEE ASSESSMENT OF FY 2007 CORROSION & STRESS CORROSIONCRACKING SIMULANT TESTING PROGRAM & THE IMPACT ON DST 241-AY-102EXPERT PANEL OVERSIGHT COMMITTEE ASSESSMENT OF RPP-RPT-35923, HANFORD TANK AY101:EFFECT OF CHEMISTRY AND OTHER VARIABLES ON CORROSION AND STRESS CORRCORROSION PROPENSITY ASSESSMENT OF TANK 241-AN-106 WASTETANK WASTE VOLUME AND LEVEL CALCULATIONS IN DOME SPACE FOR 241-AP TANK FARM UP TO 460INCHESPROCESS CONTROL PLAN FOR 241-AP-108 TANK WASTE LEVEL INCREASEPROCESS CONTROL PLAN FOR TANK 241-AP-103 TANK WASTE LEVEL INCREASEProcess Control Plan for Tank 241-AP-101 Tank Waste Level IncreaseHANFORD DOUBLE-SHELL TANK THERMAL AND SEISMIC PROJECT-BUCKLING EVALUATION METHODSAND RESULTS FOR THE PRIMARY TANKSHANFORD DOUBLE-SHELL TANK THERMAL AND SEISMIC PROJECT-SUMMARY OF COMBINED THERMAKLAND OPERATING LOADSHANFORD TANKS 241-AN-107 AND 241-AN-102: EFFECT OF CHEMISTRY AND OTHER VARIABLES ONCORROSION AND STRESS CORROSION CRACKINGHANFORD DOUBLE-SHELL TANK THERMAL AND SEISMIC PROJECT - INCREASED LIQUID LEVELANALYSIS FOR 241-AP TANK FARMSHANFORD TANKS AY102 AND AP101 EFFECT OF CHEMISTRY AND OTHER VARIABLES ON CORROSIONAND STRESS CORROSION CRACKINGHANFORD TANK AY101 EFFECT OF CHEMISTRY AND OTHER VARIABLES ON CORROSION AND STRESSCORROSION CRACKINGTECHNICAL BASIS FOR WASTE TANK CORROSION SPECIFICATIONS14. Related Systems, Structures, and Components:14a. Related 41-SY N/A14b. Related Systems4 X N/A14c. Related Equipment ID Nos. (EIN) X N/ASPF-001 (Rev.0)

OSD-T-151-0000711/19/2014 - 11:47 AMDOCUMENT RELEASE AND CHANGE FORMCONTINUATION SHEET5 of 55Document No: OSD-T-151-00007 Rev. 13[Start Continuation Here]5SPF-001 (Rev.0)

OSD-T-151-0000711/19/2014 - 11:47 AM6 of 55OSD-T-151-00007, Rev. 13Operating Specificationsfor the Double-ShellStorage TanksAuthor Name:C.C. JoslynWashington River Protection SolutionsRichland, WA 99352U.S. Department of Energy Contract DE-AC27-08RV14800DRCF MW 11/19/2014EDT/ECN:Cost Center:B&R Code:N/AUC:Charge Code:Total Pages:4955 mw 11/19/2014Key Words: Operating Specification Document, OSD, Double Shell Tank, DST, Primary Tank,Secondary Liner, Liquid Level, Leak Detection Pit, Hydrostatic Load, Pressure, Vacuum, Temperature,Corrosion Mitigation, Dome Load, Tank BumpAbstract: OSD-T-151-00007 is revised from Revision 12 to Revision 13. Revised dome loading sectionto clarify requirement for dome elevation surveys and response for missed survey. Revised tank bumprequirements to remove connection to administrative control that no longer exists. Revised annulus videoinspection frequency to accommodate enhanced visual inspections resulting from letter of direction 13TPD-0017, CONTRACT NO. DE-AC27-08RV14800 – DOUBLE-SHELL TANK (DST) ANNULUSVIDEO INSPECTIONS. Reference to former TSR administrative control key element for annulus visualinspection removed from technical basis section.TRADEMARK DISCLAIMER. Reference herein to any specific commercial product, process, or service by trade name,trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, orfavoring by the United States Government or any agency thereof or its contractors or subcontractors.DATE:Nov 19, 2014By marguerite washington at 11:49 am, Nov 19, 2014Release ApprovalDateRelease StampApproved For Public ReleaseA-6002-767 (REV 3)

OSD-T-151-0000711/19/2014 - 11:47 AM7 of 55OSD-T-151-00007Revision 13OPERATING SPECIFICATIONSFOR THE DOUBLE-SHELLSTORAGE TANKSC.C. JoslynWashington River Protection SolutionsDate PublishedNovember 2014Effective Date: On IssuePrepared for the U.S. Department of EnergyOffice of River ProtectionContract # DE-AC27-08RV14800Approved for Public Release; Further Dissemination Unlimited

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OSD-T-151-0000711/19/2014 - 11:47 AM9 of 55OSD-T-151-00007 Rev. 13RECORD OF REVISIONRev. 412July2013ECN-13-00073513October2014DRCF SmartPlantReleaseDescription of Change – Replace, Add andDelete PagesSee OSD-T-151-00007, Rev. 12 for revisionhistory from Rev. 1 through Rev. 10.Cog. Engr.Cog. Mgr.VariousVariousRevise Table 1.1.3 on LDP levels to include a timeto pump element in response to Correction ActionPlan S-12-AMTF-TANKFARM-002Revise recovery action for section 1.0, leakdetection pit liquid level to revise time to pumpduration in response to WRPS-PER-2013-1001.Added pumping protocol in response to WRPS1301766.Updated reference TFC-OPS-OPER-CD01, Event Notification with TFC-OPS-OPER-C-57,Event Notification.Revised dome loading section to clarifyrequirement for dome elevation surveys andresponse for missed survey. Revised tank bumprequirements to remove connection toadministrative control that no longer exists.Revised annulus video inspection frequency toaccommodate enhanced visual inspectionsresulting from letter of direction 13-TPD-0017,CONTRACT NO. DE-AC27-08RV14800 –DOUBLE-SHELL TANK (DST) ANNULUSVIDEO INSPECTIONS. Reference to former TSRadministrative control key element for annulusvisual inspection removed from technical basissection.R.S. rC.C. JoslynD.G. Baidei

OSD-T-151-0000711/19/2014 - 11:47 AM10 of 55OSD-T-151-00007 Rev. 13Table of Contents1.0INTRODUCTION . 11.1Liquid Levels . 11.2Hydrostatic Load . 81.3Primary Tank and Annulus Vapor Space . 91.4Tank and Waste Temperatures . 111.5Corrosion Mitigation . 161.6Dome Loading . 231.7Tank Bump . 252.0REFERENCES . 27Table of TablesTable 1.1.1Primary Tank Maximum Waste Liquid Level . 1Table 1.1.2Primary Tank Minimum Waste Liquid Level . 4Table 1.1.3Tertiary Leak Detection Pit Liquid Level . 5Table 1.2.1Maximum Bulk Specific Gravity . 8Table 1.3.1Primary Tank Vapor Space Vacuum . 9Table 1.3.2Secondary Tank Annulus Vacuum . 10Table 1.4.1Maximum Temperature for Waste, Steel, and Concrete . 11Table 1.4.2Bulk Temperature Change . 13Table 1.4.3Minimum Number of Operational Thermocouples for Tanks 241-AY and AZ . 14Table 1.5.1Waste Chemistry Limits . 16Table 1.5.2Annulus Tank Ventilation System and Annulus Inspection . 19Table 1.6.1Dome Loading Requirements . 23Table 1.7.1End-State Analysis for Tank Bump . 25ii

OSD-T-151-0000711/19/2014 - 11:47 AM11 of 55OSD-T-151-00007 Rev. 131.0INTRODUCTIONThe operating specifications in this document cover storage operations for the DoubleShell Tank (DST) Farms (241-AN, AP, AW, AY, AZ, and SY Tank Farms).The purpose and scope of the Operating Specification Documents (OSDs) as well asdetailed requirements and authority for preparing, reviewing, releasing, and revising themare covered in TFC-ENG-CHEM-P-14, Operating Specification Documents.Specification limits are given at the start of each section. The Detection/Control sectiondescribes the methods used to comply with the specification limits. The RecoveryAction section describes the steps to be taken when a DST does not comply with anoperating specification. The Technical Bases for the specification limits are located inAppendix A.1.1Liquid LevelsTank liquid levels may be recorded by either an automatic liquid level measuring device(Enraf) or by manual liquid level tape/zip cord readings. When a tank has an operableEnraf and there is a discrepancy between the Enraf and manual tape readings, the Enrafreadings shall be assumed to be accurate. Enrafs are calibrated in accordance withMaintenance Procedure 5-LCD-300. Manual Tapes are not calibrated.Table 1.1.1Primary Tank Maximum Waste Liquid LevelTanksNormalOperatingLimit (inch)MaximumAuthorizedLimit (inch)StructuralLimit (inch)241-AN416422422241-AP-102, 104, 106, 107416422460241-AP-101, 103, 105, 108454458460241-AW-101, 241-AZ364370370241-SY4164224221

OSD-T-151-0000711/19/2014 - 11:47 AM12 of 55OSD-T-151-00007 Rev. 13Technical Basis: see Appendix ADetection/Control:Double-Shell Tanks are operated under The Normal Operating Limit; however, theNormal Operating Limit may be raised to Maximum Authorized Limit by a ProcessMemo, which includes adjustments to surveillance requirements. The Normal OperatingLimit and Maximum Authorized Limit can also be exceeded when performing level riseactivities controlled by a Process Control Plan.*An approved Process Memo or a Process Control Plan represents planned or approvedactivities that do not require Recovery Action for exceeding the Normal Operating Limit.The primary tank waste level monitoring system in each tank is composed of severalsubsystems: Each tank is provided with an automatic liquid level measuring device (Enraf), whichdata is in most cases transmitted to the tank monitoring and control system (TMACS) Tank levels are recorded on data sheets and checked against maximum and minimumliquid levels. A manual liquid level tape/zip cord reading may be taken at each tankas a backup to the automatic liquid level gauge. 241-AP DST waste level above 422 inch must comply with in-service leak checkrequirements of RPP-19438. In-service leak check must be performed according to aprocess control plan. Results of an in-service leak check must be documented in aninteroffice memo. In addition, some tanks are provided with a high-level alarm conductivity probe.Readings are taken daily as specified by OSD-T-151-00031, or during transfers asspecified per transfer procedure.Recovery Action:Liquid Level Limit specification non-compliance shall be reported according to thedispositions described under this section.If the Normal Operating Limit is exceeded as a result of unplanned, or unapprovedactivity: Notify the Shift Manager. Shift Manager shall treat OSD non-compliance as asignificant operational issue and make appropriate notifications per TFC-OPS-OPERC-57, Event Notification Stop all transfers or additions into the tank2

OSD-T-151-0000711/19/2014 - 11:47 AM13 of 55OSD-T-151-00007 Rev. 13 Verify that the level is less than the Maximum Authorized Limit level as listed inTable 1.1.1 for all DST’s Adjust surveillance requirements (alarms and/or rounds) to detect any more change,as required Evaluate for reportability in accordance with TFC-OPS-OPER-C-24, OccurrenceReporting and Processing of Operations Information Ensure a Problem Evaluation Request (PER) has been submittedIf the Maximum Authorized Limit is exceeded: Notify the Shift Manager. Shift Manager shall treat OSD non-compliance as asignificant operational issue and make appropriate notifications per TFC-OPS-OPERC-57, Event Notification Stop all transfers or additions into the tank Evaluate for reportability in accordance with TFC-OPS-OPER-C-24, OccurrenceReporting and Processing of Operations Information Ensure a Problem Evaluation Request (PER) has been submittedIf the Structural Limit is exceeded: Notify the Shift Manager. Shift Manager shall treat OSD non-compliance as asignificant operational issue and make appropriate notifications per TFC-OPS-OPERC-57, Event Notification Stop all transfers or additions into the tank Evaluate for reportability in accordance with TFC-OPS-OPER-C-24, OccurrenceReporting and Processing of Operations Information Ensure a Problem Evaluation Request (PER) has been submitted3

OSD-T-151-0000711/19/2014 - 11:47 AM14 of 55OSD-T-151-00007 Rev. 13Table 1.1.2Primary Tank Minimum Waste Liquid LevelWhen Annulus Ventilation inOperation (inch)When Primary Tank Ventilationin Operation (inch)241-AY, AZ646241-AN, SY, AWN/A6241-APN/A12TanksTechnical Basis: see Appendix ADetection/Control:The primary tank waste level monitoring system in each tank is composed of severalsubsystems: Each tank is provided with an automatic liquid level measuring device (Enraf), whichdata is in most cases transmitted to the tank monitoring and control system (TMACS) Tank levels are recorded on data sheets and checked against maximum and minimumliquid levels. A manual liquid level tape/zip cord reading may be taken at each tankas a backup to the automatic liquid level gauge.Readings are taken daily as specified by OSD-T-151-00031, Operating Specifications forTank Farm Leak Detection and Single-Shell Tank Intrusion Detection, or during transfersas specified per transfer procedure.Recovery Action:If the DST does not comply with the Minimum Primary Tank Waste Liquid Level limitwhile the Annulus Ventilation is in Operation: Notify the Shift Manager. Shift Manager shall treat OSD non-compliance as asignificant operational issue and make appropriate notifications per TFC-OPS-OPERC-57, Event Notification Immediately shutdown the annulus ventilation system Tank liquid level shall then be increased above the 64 inch limit by addition of wateror waste and the annulus ventilation be restarted as soon as practical Evaluate for reportability in accordance with TFC-OPS-OPER-C-24, OccurrenceReporting and Processing of Operations Information4

OSD-T-151-0000711/19/2014 - 11:47 AM15 of 55OSD-T-151-00007 Rev. 13 Ensure a Problem Evaluation Request (PER) has been submittedIf the DST does not comply with the Minimum Primary Tank Waste Liquid Level limitwhile the Primary Tank Ventilation is in Operation: Notify the Shift Manager. Shift Manager shall treat OSD non-compliance as asignificant operational issue and make appropriate notifications per TFC-OPS-OPERC-57, Event NotificationImmediately shutdown the primary tank ventilation system until new conditions ofoperations are determined (1) Evaluate for reportability in accordance with TFC-OPS-OPER-C-24, OccurrenceReporting and Processing of Operations Information Ensure a Problem Evaluation Request (PER) has been submittedNOTE:(1) Operating below the minimum liquid level of 6 inches (12 inches for 241-AP) wouldrequire adjustment of the primary tank ventilation system. This condition ofoperation is not described, as pumping to this level is not planned in the foreseeablefuture.Table 1.1.3Tertiary Leak Detection Pit Liquid LevelLeak Detection PitMaximumAuthorized LimitDip TubeReading (inch)Structural LimitDip TubeReading (inch)241-AN-01C - 06C6378241-AN-07C6374241-AP-03C, 05C46123241-AW-01C - 06C6374241-AY-101A - 102A1666241-AZ-101 - 1022373241-SY-01C - 03C2373NOTE: The values in Table 1.1.3 include a 2-inch “time to pump” margin. Seetechnical basis section for details5

OSD-T-151-0000711/19/2014 - 11:47 AM16 of 55OSD-T-151-00007 Rev. 13Technical Basis: see Appendix ADetection/Control:The Tertiary Leak Detection Pit Monitoring System is such that: Dip tubes are used to monitor the liquid level in the leak detection pit; a manualtape/zip cord reading may be taken at each tank as a backup to the dip tubeinstrumentation Normal Operating Ranges (and if available, Alarm Set Points) verify equipmentoperation and provide indication that the liquid level is within the MaximumAuthorized Limit. In some farms, (AN, AP, and AW) dip tubes are read manuallyusing pressure M&TE. The levels are checked and recorded on a weekly basis byoperator rounds The data is then reviewed per TFC-ENG-CHEM-D-21, Process Engineering WasteSurveillance Data ReviewRecovery Action:If the Maximum Authorized Limit Dip Tube Reading is exceeded: Notify the Shift Manager. Shift Manager shall treat OSD non-compliance as asignificant operational issue and make appropriate notifications per TFC-OPS-OPERC-57, Event Notification Evaluate for reportability in accordance with TFC-OPS-OPER-C-24, OccurrenceReporting and Processing of Operations Information Ensure a Problem Evaluation Request (PER) has been submitted Pump the leak detection pit to below the Maximum Authorized Dip Tube limit within30 days. If an equipment issue prevents pumping within 30 days, system Engineering shallcomplete an OSD Recovery Action Plan Form (A-6005-240), submit the RecoveryAction Plan to the WRPS Chief Engineer (with notification to the ORP AssistantManager Tank Farms when it is approved) within 30 days, and restore the LDP levelto within the established limit in accordance with the approved Recovery Action Plan.o The recovery action plan shall include a technical basis for extending the timeto pump. The actual rate of ingress of liquid shall be evaluated to ensurepumping is complete before the level reaches the Structural Limit Dip TubeReading.6

OSD-T-151-0000711/19/2014 - 11:47 AM17 of 55OSD-T-151-00007 Rev. 13If the Structural Limit Dip Tube Reading is exceeded: Notify the Shift Manager. Shift Manager shall treat OSD non-compliance as asignificant operational issue and make appropriate notifications per TFC-OPS-OPERC-57, Event Notification Evaluate for reportability in accordance with TFC-OPS-OPER-C-24, OccurrenceReporting and Processing of Operations Information Prohibit waste transfers into or out of the DST while the Structural Limit Dip TubeReading is exceeded. Ensure a Problem Evaluation Request (PER) has been submitted Pump the leak detection pit to below the Maximum Authorized Dip Tube limit within24 hours.Protocol for pumping the leak detection pit:Sampling and analysis of the 241-AY-102A leak detection pit is required prior topumping. Prior to pumping all other LDPs, the following protocol shall be followed toensure the proper controls are established for the pumping process.Either:Verify no waste is present in the leak detection pit by sampling and analysis of the liquid,- OR Perform a Technical Evaluation to document that there is low probability of tank wastebeing in the leak detection pit. The following data must be considered in the evaluation:1. Verification using the required leak detection system for double-shell tanks as definedin OSD-T-151-00031; Verification of no unexplained decrease in liquid level in the primary tank duringthe accumulation period (i.e. the period of time that liquid has accumulated in theleak detection pit),-AND Verification of no level alarms of the ENRAF gauges in the annulus during theaccumulation period.2. If available, verification that the annulus Continuous Air Monitor has not detectedany high airborne radiation during the accumulatio

h-2-71997 sh 002 01 piping plan & details leak detection pit 241-an-o1c thru 07c h-2-90444 sh 001 02 piping leak detection drain plans and sections h-2-90444 sh 002 01 piping leak detection drain plans and sections h-2-90444 sh 003 01 piping leak detection drain plans and sec