ML17292A549

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Application for Amend to License NPF-21 to Modify TS for Secondary Containment & Standby Gas Treatment Sys to Reflect Revised Secondary Containment Drawdown & post-accident Analyses Results.Affidavit,Encl
ML17292A549
Person / Time
Site: Columbia Energy Northwest icon.png
Issue date: 10/15/1996
From: BEMIS P R
WASHINGTON PUBLIC POWER SUPPLY SYSTEM
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML17292A550 List:
References
GO2-96-199, NUDOCS 9610230234
Download: ML17292A549 (12)


Text

CATEGORY1REGLATINFORMATION DISTRIBUTION STEM(RIDS)ACCESSION NBR:9610230234 DOC.DATE:

96/10/15NOTARIZED:

YESDOCKET~~~~FACIL:50-397 WPPSSNuclearProject,Unit2,Washington PublicPowe05000397AUTH.NAMEAUTHORAFFILIATION BEMIS,P.R.

Washington PublicPowerSupplySystemRECIP.NAME RECIPIENT AFFILIATION DocumentControlBranch(Document ControlDesk)

SUBJECT:

Application foramendtolicenseNPF-21tomodifyTSforsecondary containment aStandbyGasTreatment systoreflectrevisedsecondary containment drawdownapost-accident

-analyses results.Affidavit, encl.DISTRIBUTION CODE:AOOIDCOPIESRECEIVED:LTR iENCISIZE:2TITLE:ORSubmittal:

GeneralDistribution NOTES:RECIPIENT IDCODE/NAME PD4-2LACOLBURN,T COPIESLTTRENCL1111RECIPIENT IDCODE/NAME PD4-2PDCOPIESLTTRENCL110RINTERNAL:

ACRSNRR/DE/EMCB NRR/DSSA/SPLB NUDOCS-ABSTRACT TERNAL:NOAC1111111111FILECENTE1HICBNRR/DSSA/SRXB OGC/HDS3NRCPDR1111111011D0CUMlpNOTETOALL"RZDS"RECIPIENTS:

PLEASEHELPUSTOREDUCEWASTE.TOHAVEYOURNAMEORORGANIZATION REMOVEDFROMDISTRIBUTION LISTSORREDUCETHENUMBEROFCOPZESRECEIVEDBYYOUORYOURORGANIZATION, CONTACTTHEDOCUMENTCONTROL'ESK(DCD)ONEXTENSION 415-2083TOTALNUMBEROFCOPIESREQUIRED:

LTTR13ENCL.12 A1gI0 WASHINGTON PUBLICPOWERSUPPLYSYSTEMP.O.Box968~3000GeorgeWashington Way~Richland, Washington 99352-0968

~(509)372-5000October15,1996G02-96-199 DocketNo.50-397U.S.NuclearRegulatory Commission Attn:DocumentControlDeskWashington, D.C.20555Gentlemen:

Subject:

%NP-2,OPERATING LICENSENO.NPF-21REQUESTFORAMENDMENT TOSECONDARY CONTAINMENT ANDSTANDBYGASTREATMENT SYSTEMTECHNICAL SPECIFICATIONS

References:

1.Letter,datedJuly29,1988,CMPowers(SS)toNRC,"Licensee EventReportNo.88-023"2.3.Letter,datedSeptember 30,1988,CMPowers(SS)toNRC,"Licensee EventReportNo.88-023-01" uLetter,GO2-89-176, datedSeptember 29,1989,GCSorensen(SS)toNRC,"Unreviewed SafetyQuestionRegarding StandbyGasTreatment" 4.5.6.7.8.Letter,datedOctober18,1989,CMPowers(SS)toNRC,"Licensee EventReportNo.89-040"Letter,GO2-89-216, datedNovember30,1989,GCSorensen(SS)toNRC,"Unreviewed SafetyQuestionRegarding StandbyGasTreatment (SGT)System"Letter,GI2-90-009, datedJanuary3,1990,RBSamworth(NRC)toGCSorensen(SS),"Evaluation ofJCORegarding StandbyGasTreatment SystemAttainment ofSecondary Containment Pressure" Letter,GO2-90-027, datedFebruary16,1990,GCSorensen(SS)toNRC,"StandbyGasTreatment System(TACNo.75048)"Letter,GO2-90-155, datedSeptember 25,1990,GCSorensen(SS)toNRC,"StandbyGasTreatment System(TACNo.75048)"9hi0230234 9hi0l5imPDR'ADOCK 05000397PPDR',

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+Page2REQUESTFORAMENDMENT TOSECONDARY CONTAINMENT ANDSTANDBYGASTREATMENT SYSTEMTECHNICAL SPECIFICATIONS

References:

9.Letter,GO2-92-076, datedMarch31,1992,JWBaker(SS)toNRC,(cont.)"Licensee EventReportNo.92-008-00" 10.Letter,GO2-92-268, datedDecember22,1992,GCSorensen(SS)toNRC,"StandbyGasTreatment/Secondary Containment" 11.Letter,GI2-93-110, datedMay5,1993,JWClifford(NRC)toGCSorensen(SS),"StandbyGasTreatment/Secondary Containment (TACNo.M75048)"12.Letter,GO2-93-151, datedJune11,1993,JVParrish(SS)toNRC,"Licensee EventReportNo.92-008-01" 13.Letter,GI2-95-059, datedMarch6,1995,JWClifford(NRC)toWPPSS,"SummaryofMeetingonPost-Accident Containment Response" 14.Letter,GO2-96-170, datedAugust21,1996,DASwank(SS)toNRC,"Additional Information Regarding theJustification forContinued Operation fortheStandbyGasTreatment System"Letter,GO2-95-265, datedDecember8,1995,JVParrish(SS)toNRC,"RequestforAmendment toTechnical Specifications" 15.Inaccrdancewi0ththeCodeofFederalRegulations, Title10,Parts50.90and2.101,theSupplySystemherebysubmitsarequestforamendment totheWNP-2Technical Specifications.

Thisproposedamendment modifiestheTechnical Specifications forsecondary containment andtheStandbyGasTreatment (SGT)systemtoreflectrevisedsecondary containment drawdownandpost-accident analysesresults.Specifically, theproposedchanges:Enhancethesecondary containment integrity surveillance requirements byestablishing anacceptable operating regionasafunctionofsecondary containment differential pressureandSGTsystemflow.Revisethesecondary containment andSGTsystenrTechnical Specification tomoreaccurately reflecttheexistingdesignwhichconsistsof2flltertrainsand4divisional subsystems.

RevisetheSGTsystemsurveillance requirements toreflectthechangeinsystemflowratefrom4457cfmto5000cfm.(iv)Deletetheexistingrequirement tomaintainthesecondary containment at~0.25inchofvacuumwatergaugeatalltimes(i.e.,duringnormaloperation withthenonsafety-related secondary containment ventilation system).

!"I

.REQUESTFORAMENDMENT TOSECONDARY CONTAINMENT ANDSTANDBYGASTREATMENT SYSTEM,TECHNICAL SPECIFICATIONS Attachment 1providesadetaileddiscussion ofthechanges,including background information andthebasesforthechanges.Attachment 2'contains thefiguresandtablesreferenced intheAttachment 1discussion.

Attachment 3providesmarkedupcopiesofthesecondary containment andSGTsystemTechnical Specifications andthesupporting Basespages,indicating theproposedchanges.Attachment 3AcontainsthemarkupsofthecurrentWNP-2Technical Specifications (CTS)andAttachment 3BcontainsthemarkupsoftheImprovedTechnical Specifications (ITS).TheSupplySystemhasproposed(Reference 15)conversion totheITSbasedonNUREG-1434, "Standard Technical Specifications, GeneralElectricPlants,BWR-6,"Revision1,datedApril1995,anditisexpectedthatapprovalforconversion totheITSwillprecedeapprovalofthisamendment request.Theindicated BaseschangesareincludedinthemarkupsoftheTechnical Specifications forinformation only.TheBaseschangeswillbeincorporated intotheTechnical Specifications bytheSupplySystemwhentheTechnical Specification amendment isissuedforimplementation.

Thisproposedchangeresolvesalongstandingissueregarding theestablishment ofsecondary containment vacuumunderadverseenvironmental conditions.

TheissuewasreportedtotheNRCinLERs88-023,88-023-01, and89-040(References 1,2,and4)andalsoasanunreviewed safetyquestion(USQ)(Reference 3).Asevidenced bythelargenumberofdocketedcorrespondence betweentheSupplySystemandtheNRCstaff(seeReferences 1-14),theissuehasreceivedasignificant amountofattention.

Theinformation providedinthisTechnical Specification amendment requestisintendedtojustifytheproposedchangesaswellasdocumenttheresolution ofrelatedissuesidentified inthejustification forcontinued operation (JCO)forSGTsystemattainment ofsecondary containment pressure.

TheNRCstaffreviewedRevision0oftheJCO(Reference 3)andwereprovidedwithacopyofRevision5oftheJCO,whichcontainsthecurrentdesignbasis,attheFebruary6,1995meeting(Reference 13)andduringarecentengineering inspection (IR96-11andReference 14).Attachment 4includesacopyofRevision5oftheJCOandtheassociated closureinformation.

TheJCOclosureinformation hasbeenincludedtoprovideacleardocumented recordoftheissuesaddressed bytheJCOandtheirresolutions.

Theshorttermdrawdownanalysiswasrecentlyre-performed andsomeoftheresultsvaryslightlyfromthosepresented attheFebruary6,1995meetingduetomoreconservative assumptions forheatloading.Also,forconsistency withtheformatandcontentrequirements oftheITS,theproposedchangestotheCTSaredifferent thanwhatwaspresented atthemeeting.Attachment 5containsmodelelementdetailsandbackground information pertaining totheGOTHICcomputercode.GOTHICwasusedinthepost-accident analyseswhichsupporttheproposedchangestotheTechnical Specifications.

~Page4REQUESTFORAMENDMENT TOSECONDARY CONTAINMENT ANDSTANDBYGASTREATMENT SYSTEMTECHNICAL SPECIFICATIONS Attachment 6providestheNoSignificant HazardsConsideration andEnvironmental Considerations evaluations.

TheSupplySystemhasconcluded thattheproposedchangestotheWNP-2Technical Specifications donotresultinasignificant hazardsconsideration.

Inaddition, thechangesmeettheeligibility criteriaforacategorical exclusion assetforthin10CFR51.22(c)(9).

Therefore, inaccordance with10CFR51.22(b),

anenvironmental assessment ofthechangesisnotrequired.

ThisTechnical Specification amendment requesthasbeenreviewedandapprovedbytheWNP-2PlantOperations Committee andtheSupplySystemCorporate NuclearSafetyReviewBoard.Inaccordance with10CFR50.91,theStateofWashington hasbeenprovidedacopyofthisletter.Itisalsoherebyrequested that30daysbeallowedforimplementation ofthisproposedamendment toaccommodate completion oftherequiredimplementation actions.Shouldyouhaveanyquestions ordesireadditional information regarding thismatter,pleasecallmeorMs.L.C.Fernandez at(509)377-4147.

Respectfully, P.R.Bemis~~VicePresident NuclearOperations MailDropPE23Attachments:

1)2)3A)3B)4)5)6)Discussion andbasesforchangesFiguresandTablesCTSandBasesmarkupITSandBasesmarkupJCO(Revision 5)andclosuresummaryGOTHICmodelcomparison information NoSignificant HazardsConsideration andEnvironmental Considerations evaluations CC:LJCallan-NRCRIVKEPerkins,Jr.-NRCRIV,WalnutCreekFieldOfficeNSReynolds-Winston&StrawnTGColburn-NRRDLWilliams-BPA/399NRCSr.ResidentInspector

-927NFSAdair-EFSEC 0~,

STATEOFWASHINGTON

))COUNTYOFBENTON)

Subject:

Amendment toTechnical Specifications Secondary Containment andStandbyGasTreatment SystemI,P.R.BEMIS,beingdulysworn,subscribe toandsaythatIamtheVicePresident, NuclearOperations fortheWASHINGTON PUBLICPOWERSUPPLYSYSTEM,theapplicant herein;thatIhavethefullauthority toexecutethisoath;thatIhavereviewedtheforegoing; andthattothebestofmyknowledge, information, andbeliefthestatements madeinitaretrue.DATE1>ItC,1996eVicPresient,NuclearOperations Onthisdatepersonally appearedbeforemeP.R.BEMIS,tomeknowntobetheindividual whoexecutedtheforegoing instrument, andacknowledged thathesignedthesameashisfreeactanddeedfortheusesandpurposeshereinmentioned.

GIVENundermyhandandsealthis~ldayof1996.PublicinandfortheSTATEOFWASHINGTON ResidingaMyCommission Expires g$~ill'luQQIegJ=l