ML101340182

Response to Request for Additional Information Related to the Review of the License Renewal Application

ML101340182
Person / Time
Site:	Kewaunee
Issue date:	05/13/2010
From:	Hartz L N Dominion Energy Kewaunee
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
10-286
Download: ML101340182 (18)

Text

10lHiilion Energy Kewaunee, Inc.Hi).'minion Boulevard, Clen Allen, VI"May13,2010UnitedStates Nuclear Regulatory Commission Attention:

DocumentControlDeskWashington,DC20555-0001", DOlllinion'SerialNo.:10-286 LR/MWH RO DocketNo.:50-305LicenseNo.:DPR-43 DOMINION ENERGYKEWAUNEE,INC.

KEWAUNEE POWER STATIONRESPONSETO REQUEST FOR ADDITIONAL INFORMATION RELATEDTOTHEREVIEWOFTHE KEWAUNEE POWER STATION LICENSE RENEWAL APPLICATIONByletterdatedApril14,2010 (reference1),theNRCprovidedarequestforadditional Informationregardingtheaging managementreviewresultsincludedinthelicense renewal application(LRA)forKewauneePowerStation(KPS)(reference2).TheNRCstaffindicatedthata responsetothisrequestforadditional information(RAI)isneededtocompletethe reviewoftheKPSLRA.

Attachment1tothisletterprovidestheDominionEnergyKewaunee,Inc.(DEK)responsetotheRAIsubmittedbytheNRCstaffinreference1.InaletterdatedMarch26,2010 (reference3),DEKcommittedtoprovidearesponsetoRAI3.1.2.2.13-01within60daysofthedateofthatletter.TheNRCconcernidentifiedInRAI3.1.2.2.13-01is currentlybeingconsideredforreviewandresolutiononan Industrybasisandaindustrypositionwillnotbe developedwithinthe60-dayscheduleidentifiedinourMarch26,2010letter.

Therefore,DEKisrevisingthe proposed commitment scheduleAresponsetothisRAIwillbeprovidedafterfurther Industryreviewofthe NRC concern.

SerialNo.10-286DocketNo.50-305Page2of4Shouldyouhaveanyquestionsregardingthissubmittal,pleasecontactMr.PaulC.Aitkenat(804)273-2818.Verytrulyyours,LeslieN.HartzVicePresident-NuclearSupportServicesCOMMONWEALTHOFVIRGINIACOUNTYOFHENRICO 31.2014Theforegoingdocumentwasacknowledgedbeforeme,inandfortheCountyandStateaforesaid,todaybyLeslieN.Hartz,whoisVicePresident-NuclearSupportServicesofDominionEnergyKewaunee,Inc.ShehasaffirmedbeforemethatsheisdulyauthorizedtoexecuteandfiletheforegoingdocumentinbehalfofthatCompany, andthatthestatementsinthedocumentaretruetothebestofherknowledgeandbelief.

Acknowledgedbeforemethis

/3 of o..My Commission Expires:.il1Ay 31, ZQIl/:/It cJ.,.NotaryPublic

Attachment:

1.Responseto RAJ 82.1.32-5

References:

1.LetterfromJohnDaily(NRC)toDavid A.Heacock(DEK),"RequestforAdditionalInformationfortheReviewoftheKewauneePowerStationLicenseRenewalApplication(TACNo.MD9408),"datedApril14,2010.

[ADAMSAccessionNo.ML082341020]2.LetterfromD.

AChristian(DEK)toNRC,"KewauneePowerStationApplicationforRenewedOperatingLicense,"datedAugust12,2008.[ADAMSAccessionNo.ML082341020]3.Letterfrom L.N.Hartz(DEK)toNRC,"ResponsetoRequestforAdditional Information AssociatedwiththeReviewoftheKewauneePowerStationLicense Renewal Application,"datedMarch26,2010.[ADAMSAccessionNo.ML100890229]

SerialNo.10-286DocketNo.50-305Page3of4Commitmentsmadeinthisletter:1.LicenseRenewal Commitment47willbeaddedtoLRATableA6.0-1,consistentwiththeresponsetoRAI82.1.32-5.Thenew commitmentisproposedtosupportapprovaloftherenewedoperatinglicense,andmaychangeduringtheNRCreviewperiod.2.InaletterdatedMarch26,2010(reference3),DEKcommittedtoprovidearesponsetoRAI3.1.2.2.13-01within60daysofthedateofthatletter.TheNRCconcernidentifiedinRAI3.1.2.2.13-01iscurrentlybeingconsideredforreviewandresolutiononanindustrybasisandagenericindustrypositionwillnotbedevelopedwithinthe60-dayscheduleidentifiedinourMarch26,2010letter.Therefore,DEKisrevisingtheproposed commitmentschedule.AresponsetothisRAIwillbeprovidedafterfurtherindustryreviewoftheNRCconcern.

cc:U.S.Nuclear Regulatory Commission Regional Administrator,RegionIII 2443 Warrenville RoadSuite210Lisle,IL 60532-4532Mr.P.S.Tam,SeniorProject Manager U.S.Nuclear Regulatory Commission One WhiteFlint,MailStop 08-H4A11555RockvillePikeRockville,MD 20852-2738Mr.DanielDoyle Environmental Project Manager U.S.Nuclear Regulatory CommissionMailStop 0-11 F1 Washington,DC20555-0001Mr.JohnDailyLicenseRenewalProject Manager U.S.Nuclear Regulatory CommissionMailStop 0-11 F1Washington,DC20555-0001NRCSeniorResident Inspector Kewaunee Power Station N490 Highway 42Kewaunee,WI54216PublicService Commission of WisconsinElectricDivisionP.O.Box7854Madison,WI53707 David HardtkeChairman-TownofCarlton E2334 Lakeshore RoadKewaunee,WI54216SerialNo.10-286DocketNo.50-305Page4of4 ATTACHMENT 1 RESPONSETORAI 82.1.32-5 KEWAUNEE POWER STATION DOMINION ENERGY KEWAUNEE, INC.SerialNo.10-286DocketNo.50-305 SerialNo.10-286 DocketNo.50-305 Attachment 1/Page1of13I.NRCISSUESANDREQUESTSIna letterfromNRCtoDEKdatedApril14,2010,the following Request for Additional Information was submitted."RAI B2.1.32-5, Reviewofthe WorkControlProcess, Kewaunee License Renewal Application

Background:

Inthe Dominion Energy Kewaunee (Dominion)

Letter No.09-597 dated September 25, 2009 (Agencywide Documents Access and Management System (ADAMS)Accession Number ML092710045), Dominion amended the Work Control Process(WCP)aging management program(AMP)and identifiedthatthe WCPisanewAMPthatwhen enhancedwillbe consistentwiththe program elements recommendedin:(a)Generic Aging Lessons Learned (GALL)AMPXI.M32,"One-Time Inspection," when implementedasa one-time inspection program for those components thataremanagedona preventative or mitigative monitoringbasis(i.e., through implementation of eitherlicenserenewal application(LRA)AMP 82.1.24,"Primary Water Chemistry Program;" AMP 82.128,"Secondary Water Chemistry Program;" AMP 82.1.8,"Closed-Cycle Cooling Water Program;" AMP 82.1.14,"FuelOil Program;"orAMP 82.1.17,"Lubricating Oil Analysis Program"),and(b)GALLAMPXI.M38,"InspectionofInternal Surfaces in MiscellaneousPipingandDucting Components," when appliedasa periodic condition monitoring program and subjecttothe exceptionsthatwere taken to GALLAMPXI.M38inthe letter of September25,2009.On December3,the staff issued requests for additional information (RAls)82.1.32-1,-2,-3,and-4withrespecttothe revised program element criteriafortheWCPandonsomeof exceptions that weretakento GALLAMPXI.M38.

Dominion responded to these RAlsinthe Dominion LetterNo.09-777,dated January21,20[10](ADAMS AccessionNo.ML 100220066).

The staff has reviewed the informationinthe letters of September 25, 2009 and January 21,2010,andhasthe following issues thatrequireresolution.

Issue 1 (Part 1 oftheRAI-In regardtothe informationthathasbeen submittedfortheWCPinthe letter of September 25.2009.as supplementedbvthe responsetoRAI 82.1.32-1inthe letter of January[271.2010): The staffhasnoted that the applicant is crediting methodologyinEPRITR107514asthebasisfor selecting the samplesizesforthe material-environment-aging effect combinations thatwillbe managedbythe WCPona one-time inspectionbasis,andthatthisreportstates that the samplesizesshould achieve a desired confidence level.However,the applicant's basis continuestoleavesome uncertaintywithrespectto establishing the samplesizeforthe material-environment-aging effect-based populations being managedonaonetime inspection basis because the applicant did not exactly specify or provide a justificationforthe minimum samplesizesthatwouldbe SerialNo.10-286DocketNo.50-305 Attachment1/Page2of13neededforthese one-time inspectionsofthesepopulations,or establishalimit,withjustification,onwhentheseone-time examinationswouldneedtobecompletedto ensure appropriate and timely verification of preventative or mitigative programeffectiveness.Inaddition,thestaff'spositiononuseofGALLAMPXI.M32hasbeenthatone-time inspections of componentsthatare managedonaone-timeconditionmonitoringbasiswillneedtobecompletedbyaspecifiedtimeagreedupontime(usuallypriortoenteringtheperiodofextended operationorwithinseveralyearsofenteringtheperiodofextendedoperation).

Request 1:Regardingthe informationthatwassubmittedonuseofEPRIReportNo.TR-107514,specifyand justifytheminimum percentage of componentsthatwillbeusedtoestablishthesamplesizesforthe one-time examinationsofthestated componentpopulations.Inaddition,identifyand justifywhentheone-time inspectionsfortheWCPwillbe completed.""Issue 2 (Part 2 oftheRAI-Inregardtotheinformationthathasbeen submittedfortheWCPinthe letter of September 25, 2009, as supplementedbytheresponsetoRAI 82.1.32-3inthe letter of January[271, 2010):Thestaffhasnotedthatunderthe applicant'samendedWCPbasis,asgiveninthe applicant'sletterof September25,2009,and supplemented with informationintheletter of January21,2010,theWCPlends itselftobeingaprogramthatmonitorsforabnormalsurface conditionssuchasrust, discoloration, deposits,scaleorabnormalsurfaceconditions,orfor evidenceofcrackingorchangesinthematerialpropertiesfor elastomeric components.'InRAI 82.1.32-3, the staffinquiredastothetypeofvisual examination methodsthatwouldbeusedto detect indications/parameters associatedwiththeseagingeffects(Le.,specifyVT-1,VT-3,etc.).Inthe responsetoRAI3,the applicantstatedthatthe

'non-defined' visual examinationmethodswouldbecapableofdetectingtheseagingeffectsandthat personnel performingeitherthe preventative maintenanceactivitiesor periodic surveillance activitieswouldbetrainedtoperformthe inspectionandwouldbe generallyqualifiedto detecttheagingeffects.TheRAIresponsedidnotdefinethetypeofvisual examination methods(intermsofASMECodedefinedvisual examinationmethods)thatwouldbeusedto detecttheparametersassociatedwith theseagingeffects.The staffnotedthatthe amendedWCPbasisonlyreferstoEPRIReportNo.

TR-107514asthebasisfor establishingthesamplesizesof componentsthatwillbeinspectedundertheprogram.Theamendedbasisdoesnotestablish,define,or justifytheminimumsamplesizethatwillneedtobeappliedtotheWiththeexception ofthevisual techniquesthatthe applicant is crediting for detection of crackinginmetallic components,whichthe applicant'sletterof September25,2009identifieswillbeEVT-I techniquesortheir equivalent.

SerialNo.10-286DocketNo.50-305 Attachment1/Page3of13 material-environment-aging effect populations being managedbytheAMPona periodicbasis,ortheminimum inspection frequency.

Request 2:A.Specifyand justifytheminimum percentage of componentsthatwillbeusedtoestablishthesamplesizesfortheforthe component populationsthatare associatedwiththese material-aging effect combinationsandthatwillbemanagedonaperiodic WCP-inspection basis.B.Forthese component populations,specifyand justify the maximum frequency for the examinations.""Issue 3 (Part 3 oftheRAI-Inregardtothe operating experienceinformationthathas been submittedfortheWCPintheletter of September 25,2009):Thestaffhasnotedthat,inregardtotheoperating experience (OE)examplesthatwereprovidedfortheWCPintheletterofSeptember25,2009,theOE discussions create some uncertainties on whether the implementationoftheWCPwillbecapableofdetectingtheaging effectsforwhichitiscreditedpriortoalossof component intendedtunction."Ina conferencecalldatedMarch18,2010,the applicantinformedthestaffthattheWCPisanew programthat,when implemented,willbe consistentwiththecriteriain GALLAMPXI.M32,"One-Time Inspection," when performedonaone-time condition monitoringbasis,andwiththecriteriainGALLAMPXI.M38,"InspectionofInternalSurfacesin MiscellaneousPipingandDucting Components,"withexceptions,whenperformedonaperiodicconditionmonitoringbasis.Duringtheconferencecall, the applicantclarifiedthatsincetheAMPisanewprogram,theOE discussionsprovidedintheletterof September25,2009,wereonly providedasexamplestoindicatethattheprogramhadinthepast detectedrelevantaging effectsandthattheexampleswerenotusedforthepurposeof demonstrating the capabilityofAMPtodetectaging.Fornewprograms,Section A.1.2.3.10 in"StandardReviewPlanforReviewofLicenseRenewal Applications for NuclearPowerPlants"(SRP-LR)BranchPositionRLSB-1 (Appendix A.1 of NUREG-1800,Revision1)statesthat: "An applicantmayhavetocommitto providing operating experienceinthefuturefornew programstoconfirm their effectiveness."Thestaffis concerned with Dominion'sbasisthattheWCPisanew programandthat OE discussionsintheletterof September25,2009areonlytobeusedasexamplesofReferto Attachment1tothisRAJletterforasummaryofthe staff'sissueswiththeOEdiscussionthatwereprovidedinDominionSerialLetterNo.09-597,datedSeptember25,2009(ADAMS ML092710045).

SerialNO.10-286 DocketNo.50-305 Attachment1/Page4of13relevantpastOE.The staff generally assessestheOE examples and discussions andusestheOE discussionsasabasisforassessing whether the discussedOEcould create uncertainties on whethertheWCPis capable of managingtheagingeffectsforwhichitiscredited.

Request 3:Provideyourbasiswhythe staffshouldnotusetheOE examplesprovidedintheDominionSerial LetterNo.09-597toassess whether the WCPwillbecapableof managingtheaging effectsforwhichitiscredited.Inaddition,sincethisAMPisbeingdefinedasanewAMPfortheLRA,clarify whether DominionwillamendtheLRAtoprovidethetypeof commitment recommendedinSectionA.1.2.3.10in SRP-LR BranchPositionRLSB-1for futureOEthatis detectedbytheWCP,as relevanttoUpdated Safety Analysis Report (USAR)Supplement Section A2.1.32forthe WCP."[FromNRC LetterdatedApril14,2010]

Attachment1-Issues with Operating Experience Discussions that Were Providedinthe Dominion Serial LetterNo.09-597, Dated September 25,2009"Operating Experience Example 1:Inregard operating experience (OE)discussionthathasbeencitedfortheoccludedfireprotectionpiping(located adjacenttothefire protection jockey pump discharge valve),theDE discussionhascreateda consistencyissueinthelicenserenewalapplication(LRA)on whetherlossoffire waterflow(lossofraw waterflow)inducedbyfouling(rust)shouldhavebeen identifiedasanaging effect requiring managementfortheinternalsurfacesoffire protectionsystempipingthatis exposedtofire protectionwater(rawwater),orifnot, whether this eventshouldhavebeencitedas relevantOEfortheWorkControlProcess(WCP).Inparticular,LRASection3.3.2.1.18,"Fire Protection System,"andLRATable3.3.2-18,"Auxiliary Systems-Fire Protection-Aging Management Evaluation"doesnot identifylossoffire waterflowasanaging effect requiring management(AERM)duringtheperiodofextended operationforfire protection systempiping,piping components,orpipingelements.Iflossoffire waterflowduetofoulingisnotanAERMforthefire protectionsystempiping exposedtofire water(whichisidentifiedasraw waterintheinLRATable3.3.2-18),this eventshouldnothavebeenidentifiedas relevantOEfortheWCP.Incontrast,iflossoffire waterflowinducedbyfoulingisanAERMforfire protection system componentsthatare exposed internally tofirewater,the applicantshouldhaveincludedan applicable evaluation discussion forthisaging effectinLRASection 3.3.2.1.18andan applicable aging management review(AMR)lineitemfortheaging effectinLRATable 3.3.2-18, with identificationofthe aging managementprogram(AMP)thatwillbeusedto managetheaging effect duringtheperiodof extended operation.Theletterof September25,2009didnotamendtheWCPtocreditthe WCP for managementofthisaging effectinthefire protection system components.

The staffalsohasobservedthatthe implementationoftheWCPdidnot SerialNo.10-286DocketNo.50-305 Attachment1/Page5of13detecttherustinthepipinguntilithadoccluded90%ofthecrosssectionareaavailableforfirewaterflowthroughthesystem,andthatthe applicant'sOEdiscussiondidnot identify whetherthepipingwouldhavemetthesystemflow requirementsandwouldhavebeencapableofperformingitsintendedfireprotectionfunctionwithonly10%oftheinsidepipecrosssectionareaavailablefornormaloperatingflow.Thus,iflossoffirewaterflowisanAERMforthispiping,andiftheWCPwillbetheAMPthatiscreditedtomanagethisagingeffect,theOEdiscussiondoesnotprovideanyassurancethatapplicationoftheWCPwillbecapableofdetecting fouling-inducedblockageinthefireprotectionpiping,pipingcomponents,orpiping elementsbeforetheextentofblockagewouldcausethesystemtofailtomeetitssystemflowrequirements(whenrequiredtobecalleduponforactuation).If(otherwise) componentstructuralintegrityistheonlyintendedfunctionofconcernforthiscomponent,andlossofmaterial/rustingistheonlyaging effect/mechanismofconcern,theOEdiscussionfailstoprovideabasisonwhytheWCPwasconsideredtobecapableofdetectinglossofmaterialduetocorrosion(rusting)inatimelyfashionpriortoalossofintendedfunction.""OperatingExperienceExample2:InregardtotheOEdiscussionthathasbeencitedfortheservice watervalvediscseat,theOEexampleindicatesthatthevalvewasobservedtoweep(leak)in2006andthataworkorderwasissuedin2006onthiseventcallingforaninspectionofthevalveseating.TheOE discussionalsoindicatesthattheinspectionsonthevalveseatwereperformedin2008,andthatwhenimplemented,the inspectionsofthevalveseathadindicatedthepresenceoferosioninthevalveseat,promptinga replacementofthevalve.Thestaffhasconcernsthatperformanceoftheinspectionofthevalveseatandcorrectionoftheweepingconditionfoundinthe componentwasnotcompleteduntiltwoyearsafterissuingtheworkorder.Thiscreatessome uncertaintyonwhetherappropriatemonitoringandtrendingactivitiesfortheWCPwillbeinitiatedonatimelyfashionfornotedconditions,and whetherpromptcorrectiveactionswouldbeapplied under implementationoftheWCPduetodelaysinperforming appropriate monitoringandtrendingactivities.""OperatingExperienceExample3:InregardtotheOEdiscussionthathasbeencitedonthelossofmaterialoccurringinthe'B'componentcoolingwaterpumpcasing,theOE discussion establishesthatlossofmaterialwasdetectedinthe'B' component cooling waterpumpcasinginApril2008.TheOEdiscussiondoesnotspecifywhichage-related degradationmechanisminducedthelossofmaterialinthe'B'train componentcoolingwaterpumpcasing.TheOEdiscussionalsoappearstoindicatethattheapplicantonlyperformedareviewofpastoperatinghistoryasitssolebasisforconfirmingthattheOEwasnotapplicabletothe'A'componentcoolingwaterpumpcasing;however,theOE discussiondoesnotspecifywhetherthe applicantopenedupthecorresponding'A'trainpumpcasinginordertoverifythatthistypeofconditionwasnotoccurringinthe'A'trainpumpcasing,orwhetherthe'B'train componentcoolingwaterpumpcasingwasconsideredtobeoperablewithnoted degradationleftintheuncorrectedcondition.Thus,theOE SerialNo.10-286DocketNo.50-305 Attachment1/Page6of13discussiondoesnotcurrentlysupporttheconclusionthat implementationoftheWCPwouldbecapableofinitiatingthoseappropriate"monitoringandtrending"activitiesor"correctiveaction"activitiesfordetectedcomponentconditions,includingtheneedto assess whetherapplicablesampleexpansioncriteriashouldbeappliedwhenadversematerialconditionsaredetectedinthecomponents.""Issue 4 (Part 4 oftheRAI-In regardtothe enhancement oftheWCP,USAR Supplement Section A2.1.32, and Commitment No.25.as definedinthe letter of September 25.2009):SRP-LRSection3.0definesAMP enhancementsasfollows:"Insomecases,anapplicantmaychooseanexistingplantprogramthatdoesnotcurrentlymeetalltheprogramelementsdefinedintheGALLReportAMP.Ifthisisthesituation,theapplicantmaymakea commitmenttoaugmenttheexistingprogramtosatisfytheGALLReportAMPelementpriortotheperiodofextendedoperation.This commitmentisanAMPenhancement.Enhancementsarerevisionsoradditionstoexistingaging managementprogramsthattheapplicantcommitstoimplementpriortotheperiodofextendedoperation.

Enhancementsinclude,butarenotlimitedto,thoseactivitiesneededtoensure consistencywiththeGALLReport recommendations.

Enhancementsmayexpand,butnotreduce,thescopeofan AMP."TheSRP-LR guidancedoesnotstatethat enhancements are applicabletonewAMPs.Inthe enhancementoftheWCP(asgiveninDominionSerialLetterNo.09-597;ADAMSML092710045),theapplicantonlyindicatesthattheprogramisanewprogramthat"willbe consistentwiththe recommendations in NUREG-1801,SectionXI.M32,'OneTime Inspection,'andNUREG-1801,SectionXI.M38,'InspectionofInternalSurfacesin MiscellaneousPipingandDuctingComponents,'"andthatthiscommitmentisreflectedin Commitment25,whichwasplacedonUSAR SupplementTableA6.0-1.Incontrast,thestaffnotedthat,inLRA CommitmentNo.25,the applicantonlyindicatedthattheWCP,asanewAMP,willbeimplementedduringtheperiodofextended operation.'Thus,itisnotclear whether commitmentNo.25isbeingplacedonthe

Specifically, CommitmentNo.25readsasfollows

"Commitment:TheWorkControlProcesswillbeestablished.Theprogramwillperformone-timeinspectionsasa verification of the effectiveness of chemistrycontrolprograms.The programwillalsoperformvisualinspections of componentinternalsurfaces,andexternal surfaces of selected components,tomanagetheeffects ofagingwhenthesurfacesaremade available for examination through surveillance and maintenance activities.

Source: Work Control Process.Schedule:PriortothePeriodof Extended Operation."

SerialNo.10-286DocketNo.50-305 Attachment1/Page7of13 USAR supplementfortheLRAtoreflectasimpleneedforimplementingtheWCPduringtheperiodofextendedoperationwithoutanyneedfor enhancingtheprogram,orwhetherthe commitmentisbeingplacedontheUSAR supplementtoreflectthatparticularprogram elementcriteriafortheWCPwouldneedtobeenhancedtomakethemconsistentwitheitherGALLAMPXI.M32(whenappliedonaone-timeconditionmonitoringbasis)orGALLAMPXI.M38(whenappliedonaperiodicconditionmonitoringbasis),orwiththestateddefinitionforAMP enhancementsinSection3.0oftheSRP-LR.Inaddition,the staffhasalsoobservedthatthereare inconsistenciesbetweentheinformationprovidedintheletterof September25,2009onAMP82.1.32,the enhancementoftheWCP,USARSupplementSectionA2.1.32,and Commitment No.25.Inparticular,theupdated enhancementandUSAR supplement summarydescriptionfortheWCP,reflectthattheAMPwouldbe implemented consistentwiththerecommendedprogramelementcriteriainGALLAMPXI.M32whenappliedonatimeinspectionbasis,andwiththoseinGALLAMPXI.M38,"InspectionofInternalSurfacesin MiscellaneousPipingandDucting Components,"whenappliedasaperiodicconditionmonitoringprogram.However,therevisedAMP 82.13.2basisfortheWCP,asproposedintheletterof September25,2009,indicatesthattheAMPwouldbe implemented consistentlywiththeguidanceinGALLAMPXI.M38whenappliedasaperiodicconditionmonitoringprogram,butalsowhensubjectedtofourspecifically defined exceptionsthattheapplicanthastakentotheprogram elementsinGALLAMP XI.M38.Theseapparent inconsistenciesneedtoberesolved.

Reguest4:ReviewtheinformationthathasbeensuppliedfortheWCP(LRAAMP82.1.32),the enhancementfortheWCP,USARSupplementSectionA.2.1.32,and Commitment No.25inthe September25,2009letter(assupplementedbytheletterofJanuary21,2009),for consistencyagainsteachother.Clarify whether CommitmentNo.25on USAR SupplementTableA6.0-1iseither:(1)simplybeingplacedontheLRAforthepurposeofindicatingthattheWCP,asanewAMP,willbeimplementedduringtheperiodofextendedoperation,withoutanyneedforenhancing(i.e.,revisingoraddingto)definedprogramelementsoftheAMPpriorto implementationoftheprogram,or(2) whether CommitmentNo.25isbeingplacedontheLRAtoreflectthatparticularprogramelementsfortheWCPwillneedtobeenhancedtomaketheparticularprogramelementcriteriafortheWCPeither(1) consistentwithGALLor(2)consistentwithGALLassubjectedtoparticularexceptions,priorto implementationoftheprogram.Ifitistheformercase,amendtheLRAtoremovethe enhancementoftheprogramleavingthecurrentversionof CommitmentNo.25inplace.Ifitisthelattercase,clarifywhysuch enhancementsoftheWCPshouldbepermittedwhenSection3.0oftheLRdoesnotapply enhancementstonewprograms,andprovidethefollowingadditionalclarificationsand amendmentsoftheLRA:(1)for implementationoftheprogramona SerialNo.10-286DocketNo.50-305 Attachment1/Page8of13one-timeinspectionbasis,clarifywhichprogramelementsinGALLAMPXI.M32,orproceduresassociatedwiththeseprogramelements,willneedtobeenhancedtomaketheprogram elementsoftheAMPconsistentwithGALLAMPXI.M32,(2)forimplementationoftheprogramonaperiodicinspectionbasis,clarifywhichprogramelementsinGALLAMPXI.M38,orproceduresassociatedwiththeseprogramelements,willneedtobeenhancedtomaketheprogram elementsoftheAMPconsistentwithGALLAMPXI.M38(assubjecttoandwiththeexceptionofthefour specific exceptionsthathadbeenidentifiedandtakenonGALLAMPXI.M38intheletterof September25,2009),and(3)amendtheexisting enhancementofAMPand LRA CommitmentNo.25toreflectthisinformation."

SerialNo.10-286DocketNo.50-305 Attachment1/Page9of13II.DEK RESPONSE: Request 1:AsdiscussedintheresponsetoRAI82.1.32-1providedinDEKletter09-777datedJanuary21,2010[ADAMSML100220066],asamplesizewillbeestablishedforeachmaterial,basedonthetotalpopulationwhichis consistentwiththe methodologydiscussedinSection4,"SamplingProgramDescription"ofEPRITR-107514,Related DegradationInspectionMethodand Demonstration In Behalf ofCalvertCliffs Nuclear Power Plant License Renewal Application.Utilizingthissamplingmethodology,thesamplesizewillbe sufficienttoachievea90percent confidencelevelthat90percentofthepopulationisnotexperiencingtheapplicableagingeffects.Theuseofthe90/90confidencelevelisjustifiedsinceone-timeinspectionsarebeingperformedforcomponentsthatarewithinthescopeofwaterqualitycontrolprograms.Thesetimeinspectionswillprovideadditionalassurancethatunexpectedagingdegradationisnotoccurring.

The methodologyinSection4ofEPRIReport TR-107514 establishesthat,forapopulationsize greaterthan200,themaximumrequiredsamplesizeis25samples.Thetotal componentpopulationandresultinginspectionsamplesize,basedonmaterialgroup,isasfollows:

Component Sample Material Group Population Size Copper Alloys-200 25StainlessSteel

>200 25 Steel>200 25 Aluminum 1 1Theseone-timeinspectionswillbecompletedpriortoenteringtheperiodofextended operation consistentwithLicenseRenewal Commitment25for implementationoftheWorkControlProcess program.Request 2: Part AConsistentwithNUREG-1801, Generic Aging Lessons Learned(GALL)Report, SectionXI.M38,"InspectionofInternalSurfacesin MiscellaneousPipingandDuctingComponents,"theInternalsSurfacesMonitoringprogram inspectionswillbeperformedduringscheduled surveillance and maintenanceactivities,aspartoftheWorkControl SerialNo.10-286DocketNo.50-305 Attachment1/Page10of13 ProcessprogramdescribedinDEKletter09-597dated September25,2009[ADAMSML092710045].Also consistentwithNUREG-1801,SectionXI.M38,theInternalSurfacesMonitoringprograminspectionsarenotbasedona statistically-determinedsamplesizeoraspecifiedconfidencelevelapproach.EPRIReportNo.TR-107514wasnotusedasabasisforanyaspectoftheInternalSurfacesMonitoringprogram inspections.Sufficientinternalsurfacesinspectionopportunitieshave historicallybeenavailable during surveillance and maintenanceactivitiesforthevastmajorityof environment combinationsreflectedinthelicenserenewalapplication.Amaintenancehistoryreviewfrom1991to2007determinedthatscheduledsurveillanceandmaintenanceactivitiesprovidednumerousopportunitiesto periodicallyinspectplantcomponentsandstructuralelements.Thereviewofindividual maintenance activitiesindicatedatotalofmorethan7800scheduled maintenancetaskswith907oftheseactivitiesdeterminedtoprovidecomponentinspection opportunities consistentwiththeinternalsurfacesmonitoringportionoftheWorkControlProcessprogram.Althoughtheseinspection opportunitiesarebasedonahistoricalreviewofplantmaintenanceactivities,the surveillanceandpreventive maintenance programscontinuetobeperformedsuchthatitisreasonabletoconcludethatthislevelofactivityisrepresentativeofplantoperationduringtheperiodofextendedoperation.Inaddition, scheduled surveillanceandpreventivemaintenanceactivitiesprovidemultipleopportunitiesforinspectionsduetotheirrecurringnature.Anumericalcountofthetotalpopulationof componentsthatwillbemanagedfortheeffectsofagingbytheInternalSurfacesMonitoringactivitieswasnotdeterminedsince the methodologythatwasusedduringtheIntegratedPlant Assessment identifiedcomponentsthatrequiredfurtherevaluationduringtheaging managementreviewsona component type-basis(asdescribedinLRASection2.1.5,ScreeningMethodology).Assuch,a percentage-basedsamplesizecannotbeprovided.AsdescribedintheresponsetoRAI 82.1.32-2inDEKletter09-777datedJanuary21,2010[ADAMSML100220066],areviewofthescheduled surveillanceandmaintenanceactivitieswillbeperformedtoselectactivitiesthatwillprovideasetofinspectionsthatwillberepresentativeofthe componentsintheprogram.Thisreviewwillbeconductedaspartofthe implementationoftheWorkControlProcessprogramandwillensurethatmaterial-environment combinationsthatrelyontheInternalSurfacesMonitoringactivitiestomanageagingeffectsare adequatelyrepresentedwithinthescopeofthe scheduled maintenanceactivitiesinspections.Theprogramincludesarequirementtoscheduleadditionalinspectionsforcomponentswithinmaterial-environment groupsthatarenot adequatelyrepresentedbyscheduled surveillanceandmaintenance activities.Theinitialreviewofinspectionopportunitiesformaterial-environmentgroupingsshowsthatnumerous opportunitiesduringscheduled surveillance or maintenance activitiesexistforsuchinspectionexceptforalimitednumberofgroups.Insomecases,the SerialNo.10-286DocketNo.50-305 Attachment 1/Page 11of13numberof componentswithinamaterial-environmentgroupingissmall,andeachofthecomponentsissubjecttoscheduled maintenancesuchthat100%areinspected.Intwocases, specifically elastomericmaterialsinrawwater environmentsandmetallicsinrawwater,noroutine maintenanceactivitieshavebeenidentified.Inthesecases,in accordancewithprogramrequirements,specificinspectionswouldberequiredifscheduled maintenanceactivitiesarenotidentifiedforthesematerial-environment combinations.ImplementationoftheInternalSurfacesMonitoringactivitieswithintheWorkControl Processprogramwillensurethattheeffectsofagingassociatedwiththein-scopecomponentswillbe adequatelymanagedsothereisreasonable assurancethattheirintendedfunctionwillbemaintainedconsistentwiththecurrentlicensingbasisthroughouttheperiodofextendedoperation.PartBTypically,scheduled surveillanceandmaintenanceactivitieswillberepeatedseveraltimesduringtheperiodofextendedoperation.The majorityofmaterial-environmentgroupsaresubjecttoscheduled surveillance and maintenanceactivitiesperformedona12monthto36monthbasis.Forthecopperalloymaterialinamoistairenvironment combination, maintenanceactivitiesarescheduledtooccurona frequencyofonceper120months.Thelongerperiodbetweeninspectionsis justifiedsinceverylimitedandslowlyprogressingagingisexpectedforthismaterial-environment combination.Overall,thescheduled surveillance and maintenanceactivitieswillresultininspectionopportunitiesforthevariousmaterialandenvironmentcombinationsata frequency thatwillprovidereasonable assurancethatagingwillbedetectedbeforethereisalossofintendedfunction.

Request 3:Foreachoftheoperating experienceexamplesrelatedtothe Work ControlProcess InternalSurfacesMonitoringprogram,providedin Attachment2toDEKletter09-597 dated September25,2009[ADAMSML092710045],aging degradationwasidentifiedandcorrectiveactionsweretaken,asnecessary,priortothelossofintendedfunctions.DEKagreesthattheOEexamplessubmitteddonot substantiatethefutureeffectivenessoftheWorkControlProcess-InternalSurfacesMonitoringprograminmanagingagingeffects.Therefore,sincetheprogramisconsideredtobeanewAMPfortheLRA,thefollowingisproposed:

1.DEK supplementstheletter09-597submittalto withdraw theWorkControl Process-InternalSurfacesMonitoringprogramoperating experience examplesbecausetheydonot directly substantiatethefuture effectivenessoftheprograminmanagingagingeffects.

SerialNo.10-286 DocketNo.50-305 Attachment1/Page12of13 2.Consistent with SRP-LRBranchPositionRLSB-1,DEKis providing a commitmenttoprovide relevant Work Control Process-Internal Surfaces Monitoring program operating experienceforNRCreviewfollowing implementationoftheprogram.Thefollowing commitmentwillbeaddedtoLRA Appendix A, USAR Supplement, Table A6.0-1: Item Commitment Source Schedule 47 Submit three examplesofLetter10-286;Within2years operating experience associated Respbnseto followingwiththe Work Control Process-RAI 82.1.32-5.

implementation Internal Surfaces Monitoringofthe WorkprogramforNRC staffreviewin Control determining the effectiveness of Process agingtheprogramto detect and correct managementtheeffectsofagingpriortotheloss program.of intended function.Request4: The Work Control Processprogramis describedinLRA Appendix8,Section 82.1.32, Work Control Process, as supplementedbyDEKletter09-597,dated September 25, 2009[ADAMS ML092710045].Asaresultofthe supplemental information submitted inletter09-597,the Work Control Processprogramisanewprogramthatwillbe implementedpriortotheperiodofextended operation.

The commitment to implementtheprogramis documentedinLRATableA6.0-1, Commitment25,as supplemented byDEKletter09-597.Thereareno enhancementsproposedforthe Work Control Process program.Therefore,DEK proposesarevisiontothe descriptionofthe WorkControlProcessprogramprovidedinDEKletter09-597.

Specifically,inDEK letter 09-597, Attachment2,page12of38,striketheentiresecondparagraph under the heading Enhancements,asshownbelow.

EnhancementsTheWork Control Process program is a new program thatwillbe consistent with the recommendations of NUREG-1801,Section XI.M32,"One-Time Inspection," and NUREG-1801,Section XI.M38,"Inspection of Internal Surfaces in Miscellaneous Piping and Ducting Components.

" This oommitment is identified in Appendh<A, Tab.'-e A6.0 1 Lioense Renewa,l Commitments,Item25.

SerialNo.10-286DocketNo.50-305 Attachment1/Page13of13 The supplemental informationsubmittedinDEKletter09-597includedanamendeddescriptionofthe Work Control Processprogramandarevised implementation Commitment25in Attachment2(undertheheadingPartA:LRA AppendixAand B).AreviewoftheLRA determinedthatLRASectionA1.1,Aging Management Programs,requiresrevisiontoprovide consistencywiththeletter09-597submittal.Accordingly, LRA AppendixA,USARSupplement,SectionA1.1.32willberevisedasfollows:32.WorkControlProcess[SectionA2.1.32][ExistingRequires EnhancementToBe Developed]