ML17332A219

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Application for Amends to Licenses DPR-58 & DPR-74, Revising TS Section 3/4.6.1.2 Re Containment Leakage Requirements
ML17332A219
Person / Time
Site: Cook  American Electric Power icon.png
Issue date: 07/19/1994
From: FITZPATRICK E
INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML17332A220 List:
References
AEP:NRC:1215, NUDOCS 9407250158
Download: ML17332A219 (12)


Text

VR.IC3R.I CV1ACCELERATED RIDSPROCESSING)

~REGULATORY.

INFORMATXON DXSTRXBUTXON SYSTEM(RIDS)ACCESSION NBR:9407250158 DOC.DATE:

94/07/19NOTARIZED:

YESDOCKETFACIL:50-315 DonaldC.CookNuclearPowerPlant,Unit1,IndianaM0500031550-316DonaldC.CookNuclearPowerPlant,Unit2,IndianaM05000316AUTH.NAMEAUTHORAFFXLIATION FITZPATRICK,E.

XndianaMichiganPowerCo.(formerly Indiana6MichiganEleRECXP.NAME RECIPIENT AFFXL1ATION RDocumentControlBranch(Document ControlDesk)

SUBJECT:

Application foramendstolicensesDPR-58&DPR-74,revisingTSSection3/4.6.1.2 recontainment leakagerequirements.

DISTRIBUTION CODE:A017DCOPIESRECEIVED:LTR (ENCLgSIZE:TITLE:ORSubmittal:

AppendJContainment LeakRateTestingNOTES:0RECIPIENT IDCODE/NAME PD3-1LAHICKMAN,J INTERNAL:

OCCBEGF01ES/'DSTRSAXBEXTERNAL:

NRCPDRCOPIESLTTRENCL102210111111RECIPIENT IDCODE/NAME PD3-1PDOGC/HDS2RES/DE/SEB NSICCOPIESLTTRENCL111111D0CUNNOTETOALL"RIDS"RECIPIENTS:

PLEASEHELPUSTOREDUCEiVASTE!CONTACTTHEDOCUMENTCONTROLDESK.ROOMPl-37(EXT.504-2083)TOELIMINATE YOURNAMEFROM.DISTRIBUTION LISTSFORDOCUMENTS YOUDON'TNEED/TOTALNUMBEROFCOPIESREQUIRED:

LTTR11ENCL9 IndianaMichiganPowerCompanyP.O.Box16631Cofumbus, OH43216NAEP:NRC:1215 DonaldC.CookNuclearPlantUnits1and2DocketNos~50-315and50-316LicenseNos,DPR-58andDPR-74PROPOSEDAMENDMENT TOTECHNICAL SPECIFICATION SECTION3/4.6.1.2 FORCONTAINMENT LEAKAGEREQUIREMENTS U.S.NuclearRegulatory Commission DocumentControlDeskWashington, D.C.20555Attn:W.T.RussellJuly19,1994

DearMr.Russell:

Thisletteranditsattachments constitute anapplication foramendment totheTechnical Specifications (T/Ss)forDonaldC.CookNuclearPlantUnits1and2.Specifically, weareproposing tomodifyT/Ss3/4.6.1.2 byremovingthespecificscheduling requirements forTypesA,B,andCtests(overallintegrated andlocalcontainment leakagerate)fromtheT/Ssandreplacing theserequirements witharequirement toperformTypesA,B,andCtestinginaccordance withAppendixJto10CFR50.Theproposedamendment willprovidetheflexibility neededinscheduling TypeAtestsinconsideration ofour18-monthfuelcycles.Further,theproposedamendment willallowustomoretimelyimplement anyperformance basedinspection criteriathatmaybeaddedtoAppendixJasanoptiontoexistingcriteria.

Itisourunderstanding thatsuchregulatory reliefmaybeissuedasafinalrulechangeasearlyas1995.Theproposedchangestothescheduling requi.rements areconsistent withthesurveillance requirements for10CFR50,AppendixJtestinginNUREG-1431, "Standard Technical Specifications Westinghouse Plants."Attachment 1providesadetaileddescription oftheproposedchanges,thejustification forthechanges,andourdetermination ofnosignificant hazardsconsideration performed pursuantto10CFR50.92.Attachment 2containstheexistingT/Spagesmarkedtoreflecttheproposedchanges.Attachment 3containstheproposedT/Spages.CC\9407250158 940719JL rE~h'\

W.T.Russell-2-AEP:NRC:1215 Theproposedamendment isaCostBeneficial Licensing Action(CBLA).Theproposedamendment caneliminate atleastoneTypeAtestperunitduringeach10-yearserviceperiod.TypeAtestsaddatleasttwotothreedaystoeachoutage.Italsocostsapproximately

$200,000toperformaTypeAtest.Thelifetimecostsavingsassociated withthisCBLAisapproximately

$800,000basedontworemaining 10-yearserviceperiodsforeachunit.Anotheroptionwouldbetorequestanexemption toAppendixJrequirements ever'ytimethissituation wouldoccur.Suchexemptions havebeengrantedtootherutilities inthepast,however,approvalofthisproposedamendment wouldprecludeadditional staffreviewactivities inthefuturefornumerousexemption requests.

Webelievetheproposedchangeswillnotresultin(1)asignificant changeinthetypesofanyeffluentthatmaybereleasedoffsite,or(2)asignificant increaseinindividual orcumulative occupational radiation exposure.

TheseproposedchangeshavebeenreviewedbythePlantNuclearSafetyReviewCommittee andtheNuclearSafetyandDesignReviewCommi.ttee.

Incompliance withtherequirements of10CFR50.91(b)(l),

copiesofthisletteranditsattachments havebeentransmitted totheMichiganPublicServiceCommission andtot'eMichiganDepartment ofPublicHealth.Thisletterissubmitted pursuantto10CFR50.30(b)and,assuch,anoathstatement isattached.

IndianaMichiganPowerrequestsNRCapprovaloftheproposedamendment byAugust1995,sothatanadditional exemption requestwouldnothavetobefiledforCookNuclearPlantUnit2.Basedontheprescriptive T/Ssurveillance requirements thatcurrently

'exist,theexemption requestwouldhavetobefiledtokeepfromperforming aTypeAtestinUnit2foreachoftwosubsequent refueling outages,thefirstofwhichistentatively scheduled tobegininFebruary1996.Sincerely, O'E'DE.FitzatrickVicePresident V.T.Russell-3-AEP:NRC:1215 sahAttachments CC:A.A.BlindG.CharnoffJ.B.Martin-RegionIIINFEMSectionChiefNRCResidentInspector J.R.Padgett STATEOFOHIO)COUNTYOFFRANKLIN)

E.E.Fitzpatrick, beingdulysworn,deposesandsaysthathe.istheVicePresident oflicenseeIndianaMichiganPowerCompany,thathehasreadtheforegoing PROPOSEDAMENDMENT TOTECHNICAL SPECIFICATION SECTION3/4.6.1.2 FORCONTAINMENT LEAKAGEREQUIREMENTS andknowsthecontentsthereof;andthatsaidcontentsaretruetothebestofhisknowledge andbelief.Subscribed andsworntobeforemethis~~dayof,19~~.NOTARYPUBLICRITAD.HILLNOTARYPUBLIC.STATEOFOHIO Q/I ATTACHMENT 1TOAEP:NRC:1215 DESCRIPTION ANDJUSTIFICATION OFCHANGES10CFR50.92ANALYSISFORCHANGESTOTHEDONALDC.COOKNUCLEARPLANTUNITS1AND2TECHNICAL SPECIFICATIONS Attachment 1toAEP:NRC:1215 Page1DESCRIPTION OFCHANGESTheproposedamendment toTechnical Specifications (T/Ss)3/4.6.1.2 makesthefollowing specificchangestotheCookNuclearPlantUnits1and2T/SsA.RevisesSurveillance Requirement 4'.1.2.atoremovethespecificrequirement thattheTypeAtestsbeperformed at40a10monthintervals withthethirdtestofeachsetconducted duringtheshutdownforthe10-yearplantinservice inspection andreplaceitwiththefollowing:

"TypesA,B,andC(OverallIntegrated andLocalCombinedLeakageRate)testingshallbeconducted inaccordance withtherequirements specified inAppendixJto10CFR50,asmodifiedbyapprovedexemptions."

B.Themodifiedstatement proposedaboveincorporates Surveillance Requirement 4.6.1.2.d forTypesBandCtestingintoSurveillance Requirement 4.6.1.2.a.

TheseTypesBandCtestingrequirements arealsospecified inAppendixJto10CFR50.Therefore, itisnotnecessary torepeattheserequirements intheT/Ssgiventheabovesuggested change.C.DeletesSurveillance Requirements 4.6.1.2.b, 4.6.1.2.c, and4.6.1.2.f.

Thesetestingrequirements arealsospecified inAppendixJto10CFR50.Therefore, itisnotnecessary torepeattheserequirements intheT/Ssgiventheabovesuggested change.D.TheUnit1T/Ssaddsasurveillance requirement tostatethat,"Theprovisions ofSpecification 4.0.2arenotapplicable."

Thisisarequirement thatexistsintheUnit2T/SsasSurveillance Requirement 4.6.1.2.g andisconsistent withthedirection providedinAppendixJto10CFR50.ItisbeingaddedtotheUnit1T/Ssforconsistency.

E.Renumbers theremaining surveillance requirements forcontinuity.

Duetotheamountofverbiagebeingdeleted,Page3/46-3ofbothUnits1and2T/Sswillbeleftblank.Theseareadministrative changes.II.JUSTIFICATION FORCHANGESTheTypeArequiredtestscheduleprovidesonlya20-monthwindowforscheduling TypeAtests.Thisrequirement isnotappropriate forafacilitylikeCookNuclearPlantwhichusesan18-monthfuelcycle.An18-monthfuelcycledoesnotprovidesufficient flexibility forthreetestswithinatenyearserviceperiodwhenlimitedbythestipulation thatthetestsbeperformed at40~10 Attachment 1toAEP:NRC:1215 Page2monthintervals.

Theinitialschedulewasbasedon12-monthfuelcycles;however,18-monthfuelcyclesareusedmorewidelythroughout theindustryandalsoatCookNuclearPlant.Experience atotherunitshasdemonstrated thatthecurrentT/Sstestintervalistooprescriptive.

AttheNorthAnnaPowerStation,whichuses18-monthcycles,bothunitshadtosubmitrequestsforaonetimeT/Ssexemption request,todeviatefromtheT/Sswhichspecified aTypeAtestschedule, toallowthethirdtesttocoincidewiththe10-yearinservice inspection period.ArizonaPublicServiceCompanyalsosubmitted asimilaramendment requestonDecember2,1993,torewordtheirT/Ssasproposedherein.Thissubmittal wassubsequently approvedbytheNRConApril6,1994,forthePaloVerdeNuclearGenerating StationUnits1,2,and3.Theneedforscheduling flexibility forTypeAtestswasalsoincorporated aspartoftheT/SsImprovement Programand,asaresult,NUREG1431,"Standard Technical Specifications Westinghouse Plants"onlyreferences AppendixJto10CFR50requirements forTypeAtests.Wearealsoapplyingthissamereasoning inthisrequestforTypesBandCtestingrequirements toonlyspecifyreference toAppendixJof10CFR50forscheduling requirements.

The24monthtestintervalisarequirement ofAppendixJto10CFR50.TheCookNuclearPlantT/Sscurrently requirethatasetofthreeTypeAtestsbeperformed specifically at40a10monthintervals duringeach10-yearserviceperiod,withthethirdtestofeachsetperformed duringtheshutdownforthe10-yearplantinservice inspection.

Tomeettheserequirements, aplantoperating onan18-monthfuelcyclemustperformaTypeAtesteveryotheroutage.Thesurveillance intervalisnogreaterthan24monthsforTypesBandCtests,whichisthesameasprescribed inAppendixJto10CFR50.AppendixJto10CFR50requiresthataTypeAtestofthecontainment beperformed periodically.

Thesetestsarerequiredtobescheduled asasetofthreetests,tobeperformed atapproximately equalintervals, duringeach10-yearserviceperiod,withthethirdsettocoincidewiththeshutdownforthe10-yearplantinservice inspection.

WhiletheCookNuclearPlantT/Ssessentially duplicate therequirements ofAppendixJto10CFR50,theT/Sscontaintheadditional requirement thatTypeAtestingbeperformed at40a10monthintervals.

Thisadditional requirement istoorestrictive forunitswith18-monthfuelcycles,asindicated above,andoftentimes requiressubmittal ofanexemption requesttoexceedthe40a10monthlimitforthethirdtest.Therefore, weproposetorevisetheT/SsforCookNuclearPlantUnits1and2todeletetheprescriptive testingandscheduling requirements forTypesA,B,andCtestingandinsteadreference thatTypesA,B,and Attachment 1toAEP:NRC:1215 Page3Ctesting10CFR50.wordingin4.6.1.2.a, willbeperformed inaccordance withAppendixJtoThisisaccomplished bymodifying theprescriptive T/Ss4.6.1.2.a and4.6.1.2.d andcombining themintoT/SsanddeletingT/Ss4.6.1.2.b, 4.6.1.2.c, and4.6.1.2.f.

Unit1T/Ssdonothavearequirement thatexemptTypesA,B,andCtestingfromtheprovisions ofT/S4.0.2.T/S4.0.2providesprovisions toallowamaximumallowable surveillance intervalextension ofupto25%ofthespecified surveillance interval.

Therequirements ofAppendixJto10CFR50wouldbeviolatedifthisextension wereusedforUnitl.Unit2T/Sshavethisrequirement alreadyincorporated.

Therequirement isbeingaddedtoUnit1toprovideconsistency betweentheT/Ssofbothunitsandalleviate thepossibility ofviolating therequirements ofAppendixJ.ApprovalofthisproposedchangewouldalsoreducethenumberT/Samendment requestsinthefuture,thatwouldberequiredasaresultoftheanticipated improvements beingconsidered forAppendixJto10CFR50,andwouldgiveustheflexibility toimplement anyenhancements sooner.Byonlyreferencing AppendixJintheT/Ss,anychangestoAppendixJwouldautomatically beencompassed withintheT/Ss.III.10CFR5092CRITERIPer10CFR50.92,aproposedchangedoesnotinvolveasignificant hazardsconsideration ifthechangedoesnot:involveasignificant increaseintheprobability orconsequences ofanaccidentpreviously evaluated, 2.createthepossibility ofanewordifferent kindofaccidentfromanyaccidentpreviously evaluated, or3.involveasignificant reduction inamarginofsafety.Criterion 1Thisamendment requestdoesnotinvolveasignificant increaseintheprobability orconsequences ofanaccidentpreviously evaluated becausetheproposedchangestotheT/Ssdonotaffecttheassumptions, parameters, orresultsofanyUFSARaccidentanalysis.

Theproposedchangesdonotmodifytheresponseofthecontainment duringadesignbasisaccident.

Theproposedamendment doesnotaddormodi.fyanyexistingequipment.

TheproposedTypesA,B,andCtestingschedules willbeconsistent withAppendixJto10CFR50.Basedontheseconsiderations, itisconcluded thatthechangesdonotinvolveasignificant increaseintheprobability orconsequences ofanaccidentpreviously evaluated.

Attachment 1toAEP:NRC;1215 Page4Criterion 2Theproposedchangesdonotinvolvephysicalchangestotheplantorchangesinplantoperating configuration.

Theproposedchangesonlyremovetherestrictive schedular requirements forconducting TypeAtestingfromtheT/Ssandsubstitute theschedulespecified inAppendixJto10CFR50.ForTypesBandCtestingtheschedular requirements areremovedfromT/Ssbecausetheyarealreadyspeci.fiedinAppendixJto10CFR50.Thus,itisconcluded thattheproposedchangesdonotcreatethepossibility ofanewordifferent kindofaccidentfromanyaccidentpreviously evaluated.

Criterion 3Themarginforsafetypresently providedisnotreducedbytheproposedchangeintheschedular requirements forTypeAtests.TypesBandCschedular requirements arenotchangedbyremovingthemfromT/Ss.Althoughthechangesallowmoreflexibility inscheduling TypeAtests,theproposedamendment continues toensurereactorcontainment systemreliability byperiodictestinginfullcompliance with10CFR50,AppendixJ.Basedontheseconsiderations, itisconcluded thatthechangesdonotinvolveasignificant reduction inamarginofsafety.