ML17228A901

Application for Amends to Licenses DPR-67 & NPF-16,upgrading TS 3/4.6.2.1 & 3/4.6.2.3 by Adapting Combined Spec for Containment Spray & Cooling Sys Contained in Std TS for C-E Plants

ML17228A901
Person / Time
Site:	Saint Lucie
Issue date:	11/02/1994
From:	SAGER D A FLORIDA POWER & LIGHT CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML17228A902	List: ML17228A901 ML17228A903
References
L-94-260, NUDOCS 9411080181
Download: ML17228A901 (21)

Text

ACCELERATEDRIDSPROCESSING)REGULATORYINFORMATIONDISTRXBUTXONSYSTEM(RXDS)ACCESSIONNBR:9411080181DOC~DATE:94/11/02NOTARIZED:YESFACIL:50-335St.LuciePlant,Unit1,FloridaPower&Light,Co.50-389St.LuciePlant,Unit2,FloridaPower&LightCo.AUTH.NAMEAUTHORAFFXLIATXONSAGER,D.A.FloridaPower&LightCo.RECIP.NAMERECIPIENTAFFILIATIONDocumentControlBranch(DocumentControlDesk)DOCKET0500033505000389

SUBJECT:

ApplicationforamendstolicensesDPR-67&NPF-16,upgradingTS3/4.6.2.1&3/4.6.2.3byadaptingcombinedspecforcontainmentspray&coolingsyscontainedinstdTSforC-Eplants.DISTRIBUTIONCODE:AOOIDCOPIESRECEIVED:LTRiENCL3SIZE:/TITLE:ORSubmittal:GeneralDistributionNOTES:RECIPIENTIDCODE/NAMEPD2-2LANORRXS,JINTERNAL:ACRSNRR/DE/EELBNRR/DRPWNRR/DSSA/SRXBOGC/HDS3EXTERNAL:NOACCOPIESLTTRENCL1111661111111011RECIPIENTIDCODE/NAMEPD2-2PDILECENTE~NRRDCH/HICBNRR/DSSA/SPLBNUDOCS-ABSTRACTNRCPDRCOPIESLTTRENCL111111111111NOTETOALL"RIDS"RECIPIENTS:PLEASEHELPUSTOREDUCEiVKSTE!CONTACT'I'HEDOCL'i!ENTCONTROLDESK,ROOMPl-37(EXT.504-0083)ToELI%)IRATEYOURiAiIErRoiID!srR!oU'I'IoNLIs'rsI:oRDoc!.'@ENI'sYo!.'oN"!'!LD!TOTALNUMBEROFCOPIESREQUIRED:LTTR19ENCL18 0

FloridaPower&LightCompany,P.O.Box12S,FortPierce,FL34S54-0128November2,1994L-94-26010CFR'0.90U.S.NuclearRegulatoryCommissionAttn:DocumentControlDeskWashington,D.C.20555RE:St.LucieUnit1andUnit2DocketNos.50-335and50-389ProposedLicenseAmendmentsContainmentSraand.CoolinSstemsPursuantto10CFR50.90,FloridaPower&LightCompany(FPL)requeststoamendFacilityOperatingLicensesDPR-67andNPF-16forSt.LucieUnit,1andUnit2,respectively,byincorporatingtheattachedTechnicalSpecifications(TS)revisions.Theproposedamendmentswill.upgradeexistingTS3/4.6.2.1andTS3/4.6.2.3byadaptingthecombinedspecificationforContainmentSprayandCoolingSystems,containedintheStandardTechnicalSpecificationsforCombustionEngineeringPlants,totheSt.Lucieunits.ThechangesaccountforplantspecificdifferencesandincludeallrelatedrequirementsofNUREG-1432,Rev.0,specification3.6.6A.Accordingly,theproposalisconsistentwiththeCommission'sFinalPolicyStatementonTechnicalSpecificationsImprovements(58FR39132).Itisrequestedthattheproposedamendments,ifapproved,be,issuedbyJanuary31,1995.Attachment1isanevaluationoftheproposedchanges.Attachment2isthe"DeterminationofNoSignificantHazardsConsideration."Attachments3and4containcopiesoftheappropriatetechnicalspecificationspagesmarkeduptoshowtheproposedchanges.TheproposedamendmentshavebeenreviewedbytheSt.LucieFacilityReviewGroupandtheFPLCompanyNuclearReviewBoard.Inaccordancewith10CFR50.91(b)(1),copiesoftheproposedamendmentsarebeingforwardedtotheStateDesigneefortheStateofFlorida.Pleasecontactusifthereareanyquestionsaboutthissubmittal.Verytrulyyours,oD.A.gerVicersidentSt.c'ePlant901l080KB1941102PDRADQCK05000335PDRanFPLGroupcompanYy0'I 4'I St.LucieUnit1andUnit2DocketNos.50-335and50-389ProposedLicenseAmendmentsContainmentSraandCoolinSstemsL-94-260Page2DAS/RLDAttachmentscc:StewartD.Ebneter,RegionalAdministrator,RegionII,USNRC.SeniorResidentInspector,USNRC,St.LuciePlant.Mr.W.A.Passetti,FloridaDepartmentofHealthandRehabilitativeServices.

y,(14,lI~>l~',i-:~f<t'I St.LucieUnit1andUnit2DocketNos.50-335and50-389ProposedLicenseAmendmentsContainment,SraandCoolinSstemsL-94-260Page3STATEOFFLORIDA))COUNTYOFSTLUCIESS~D.A.Sagerbeingfirstdulysworn,deposesandsays:ThatheisVicePresident,St.LuciePlantfortheNuclearDivisionofFloridaPower&LightCompany,theLicenseehereinrThathehasexecutedtheforegoingdocument;thatthestatementsmadeinthisdocumentaretrueandcorrecttothebestofhisknowledge,informationandbelief,andthatheisauthorizedtoexecutethedocumentonbehalfofsaidLicensee.D.A.erSTATEOFFLORIDACOUNTYOFSC,IveilTheforegoinginstrument.wasacknowledgedbeforemethis~dayofNo<fccsfa,19l4byD.A.Sager,whoispersonallyknowntomeandwhodidtakeanoath.NameofNotaryPublicMyCommissionexpiresR~klLl5l598CommissionNo.<<348989Ogglllll/lylllega+e*eOeg'lllllllmliloo St.LucieUnit1andUnit2DocketNos.50-335and50-389ProposedLicenseAmendmentsContainmentSraandCoolinSstemsATTACHMENT1EVALUATIONOFPROPOSEDTSCHANGES St.LucieUnit1andUnit2DocketNos.50-335and50-389ProposedLicenseAmendmentsContainmentSraandCoolinSstemsL-94-260Attachment1Page1of8EVALUATIONOFPROPOSEDTSCHANGESIntroductionFloridaPowerandLightCompany(FPL)requeststhatAppendixAofFacilityOperatingLicenseDPR-67forSt.LucieUnit1(PSL1)andNPF-16forSt.LucieUnit2(PSL2)bechangedtoupgradeTechnicalSpecifications(TS)3/4.6.2.1and3/4.6.2.3.ThespecificationsapplytotheContainmentSprayandContainmentCoolingSystems,respectively.Thisline-itemimprovementwillclarifytheactionsrequiredforinoperableequipmentassociatedwiththedepressurizationandcoolingsystemsinstalledinthereactorcontainmentbuilding,andwillprovideconsistencyofoperationsbetweenPSL1andPSL2.TheproposedchangeswillcombineTS3/4.6.2.1and3/4.6.2.3intoasingleLimitingConditionforOperation(LCO)similartospecification3.6.6AoftheStandardTechnicalSpecifications(STS)forCombustionEngineeringPlants(NUREG-1432,Rev.0).TheproposedLCO,accountingforplantspecificdifferences,includesallrelatedNUREG-1432requirements.Accordingly,theproposalisconsistentwiththeCommission'sFinalPolicyStatementonTechnicalSpecificationsImprovements(58FR39132).PSL1andPSL2ProosedTechnicalSecificationChanesINDEXPaeVIPSL1andPaeVIIPSL2:Thetitle"ContainmentSpraySystem"willberevisedtoread,"ContainmentSprayandCoolingSystems."Thetitle"ContainmentCoolingSystem"anditsreferencepagewillbedeleted.TS34.6.2.1ContainmentSraSstem:TheexistingLCOrequirestwoindependentcontainmentspraysystemstobeOPERABLEinMODES1and2,andinMODE3whenpressurizerpressureis>1750psia.ThewordingforthisLCOandtheassociatedACTIONstatement(s)foraninoperablespraytrainwillbereplacedintheirentiretypursuant.tothebasesandguidanceprovidedinNUREG-1432,specification3.6.6A,CONTAINMENTSPRAYANDCOOLINGSYSTEMS.TheNUREG-1432tabulararrangementofconditions,requiredactions,andactioncompletiontimeswillberestructuredintothenarrativeformconsistentwiththePSL1andPSL2TSformat.

~~St.LucieUnit1andUnit2DocketNos.50-335and50-389ProposedLicenseAmendmentsContainmentSraandCoolinSstemsL-94-260Attachment1Page2of8TheexistingsurveillancereuirementsfortheContainmentSpraySystemwillnotbealtered.However,theproposedspecificationwillincorporatethesurveillancesrequiredfortheContainmentCoolingSystem.Thefootnote"*",whichprovidesanexplanationofMODE3APPLICABILITY,willbedeleted.TheproposedLCOhasbeenstructuredsuchthatthefootnotewillnotbenecessary.TS34.6.2.3ContainmentCoolinSstem:Thisspecificationwillbedeletedinitsentirety.BasesaesB346-2andB346-3:Basessection3/4.6.2.1willberevisedtoreflectthebasesfortheproposedspecification.Basessection3/4.6.2.3willbedeleted.TheapplicableTSpageshavebeenmarked-uptoshowtheproposedchanges,andareprovidedinAttachments3and4tothissubmittal.BackroundThefunctionoftheContainmentSpray(CS)Systemistoprovidecontainmentheat,removalandiodineremovalduringaccidentconditions.ItaccomplishesitsfunctionthroughtheuseoftworedundantspraytrainswhicharecapableoftakingsuctionfromtheRefuelingWaterTank(RWT)onaContainmentSprayActuationSignal(CSAS),automaticallytransferringsuctiontothecontainmentsumponaRecirculationActuationSignal(RAS),andtransferringheattotheultimateheatsinkviathecomponentcoolingwater(CCW)andintakecoolingwater(ICW)systems.Eachtrainconsistsofaspraypump,shutdowncoolingheatexchanger,piping,valves,andsprayheader;andiscapableofsatisfyingatleast504ofaccidentheatremovalrequirements.OnetrainoftheCSsystem,inconjunctionwithitsSprayAdditive/IodineRemovalSystem,cansatisfypost-accidentiodineremovalrequirements.Intheeventoffsitepowerislost,eachtrainispoweredbyanemergencydieselgenerator.ThefunctionoftheContainmentCoolingSystemistoprovidecontainmentheatremovalduringbothnormaloperationandaccidentconditions.Itaccomplishesitsfunctionthroughtheuseoftwoelectricallyandmechanicallyindependentcontainmentcooling 1"lIIt St.LucieUnit1andUnit2DocketNos.50-335and50-389ProposedLicenseAmendmentsContainmentSraandCoolinSstemsL94260Attachment1Page3of8trains.Fourfancoolers,twopertrain,transferheattotheultimateheatsinkviatheCCWandICWsystems.Eachtrainiscapableofsatisfyingatleast50%ofaccidentheatremovalrequirements,andeachtrainispoweredbyanemergencydieselgeneratorintheeventoffsitepowerislost.Eachfaniscapableofauto-startonaSafetyInjectionActuationSignal(SIAS).PSL1andPSL2eachhaveaplantspecificLCO(TS3.6.1.5)whichprovidesassurancethattheaveragecontainmenttemperaturewillbemaintained<120'Fforthepurposeofpreservingthevalidityofaccidentanalysesassumptions,environmentalqualificationofequipmentlocatedinsidecontainment,andassumptionsmadeforstressanalysesofreactorvesselsupports.EachPSLunitalsohasaplantspecificLCOfortheSprayAdditive/IodineRemovalSystem(TS3.6.2.2)toensurethatsufficientadditivesareavailableforinjectionintothecontainmentspray.EvaluationoftheChanesProosedforPSL1andPSL2LCO:ThecontainmentanalysesforPSL1andPSL2demonstratethattheremovalofdesignbasisaccident(DBA)heatloadscanbeaccomplishedbyatleastonetrainofthecontainmentspraysysteminconjunctionwithonetrainofthecontainmentcoolingsystem;andthatrequirementsforiodineremovalfromthecontainmentatmospherecanbesatisfiedbyasingleCStrain.TheproposedLCOrequirestwocontainmentspraytrainsandtwocontainmentcoolingtrainstobeOPERABLE.Therefore,intheeventofanaccidentandconsideringsinglefailurecriteria,theheatandiodineremovalrequirementswillbesatisfied.ThewordingoftheproposedLCOisthesameastheSTS.APPLICABILITY:TheproposedAPPLICABILITYfortheCSSystemisthesameasexistingLCO3.6.2.1,e.g.,MODES1and2,andMODE3withpressurizerpressure~1750psia.ItisnotedthatthepressurecriterionspecifiedforMODE3operationisaplantspecificdifferencefromthegenericSTS.FPLdesirestoretainthispreviouslyapprovedstipulationsince,duringshutdownandcooldownofthereactorcoolantsystem(RCS),theCSsystemmustberemovedfromserviceduringthepreparationsnecessaryforshutdowncoolingoperations.

St.LucieUnit1andUnit2DocketNos.50-335and50-389ProposedLicenseAmendmentsContainmentSraandCoolinSstemsL-94-260Attachment1Page4of8FPLhasevaluatedthePSL1andPSL2containmentpressureandtemperatureresponsetothelimitinglossofcoolant(LOCA)andmainsteamlinebreak(MSLB)accidentsduringMODE3conditions.Theresultsofthisevaluationconfirmthat,withpressurizerpressure<1750psia,containmentdesignpressureandtemperaturewillnotbeexceededwhentwocontainmentfancoolersareoperable(bothCStrainswereassumedtobeoutofservice).TheproposedLCOrequirestwotrains(twofancoolerspertrain)ofcontainmentcoolingtobeOPERABLEthroughouttheentireMODE3rangeofoperation.Therefore,retainingthepreviouslyapproved,pressuredependentMODE3applicabilityfortheCSSystemwillaffordamoreefficientandtimelytransitiontoShutdownCoolingSystemoperationwithoutlossofanacceptableabilitytomitigatethepostulatedaccidents.Inaddition,agreementwiththeapplicabilityofrelatedLCO3.6.2.2(SprayAdditive/IodineRemovalSystem)willbepreserved.TheproposedAPPLICABILITYfortheContainmentCoolingSystemisthesameasexistingLCO3.6.2.3,e.g.,MODES1,2,and3.Toverifythatlowermodeapplicabilityshouldnotberequired;FPLhasevaluatedthePSL1andPSL2containmentpressureandtemperatureresponsetothelimitingLOCAandMSLBaccidentsforoperationswiththeRCStemperatureat360'F.TheresultsofthisevaluationconfirmthatthecontainmentdesignpressureandtemperaturewillnotbeexceededwithbothCStrainsandallfourfancoolersoutofservice.OperationalMODES4,5and6occuratRCStemperaturesbelow3254F,andtheimpactoncontainmentparametersfrompotentialaccidentswillbefurtherreducedintheselowermodes.Therefore,FPLconsiderstheproposedAPPLICABILITYfortheContainmentCoolingSystemtobeacceptable,andtobeconsistentwiththeSTS.ACTION-i.a:WithoneCStraininoperable,proposedACTION-1.arequirestheinoperabletraintoberestoredtoOPERABLEstatuswithin72hoursandwithin10daysofinitialdiscoveryoffailuretomeettheLCO.Inthiscondition,theremainingOPERABLEsprayandcoolingtrainsarecapableofprovidingtheiodineremovalfunctionandatleast100%ofaccidentheatloadremoval.The72hourcompletiontimetakesintoaccounttheredundantheatandiodineremovalcapabilityaffordedbytheContainmentSpraySystem,reasonabletimeforrepairs,andthelowprobabilityofaDBAoccurringduringthisperiod.The10days(frominitialdiscovery St.LucieUnit1andUnit2DocketNos.50-335and50-389ProposedLicenseAmendmentsContainmentSraandCoolinSstemsL-94-260Attachment1Page5of8offailuretomeettheLCO)portionofthecompletiontimeisbasedonengineeringjudgement,andclarifiesthatfailuretocompletelysatisfytheLCOforanexcessiveintervalisnotpermitted.Ittakesintoaccountthelowprobabilityofcoincidententryintotwoconditionsinthisspecification(definedinproposedACTION-1.c)coupledwiththelowprobabilityofanaccidentoccurringduringthistime.Theproposedcondition,requiredaction,completiontimes,andtheirbasesareequivalenttoAction"A"ofSTSLCO3.6.6A.IftheinoperablespraytraincannotberestoredtoOPERABLEstatuswithintherequiredcompletiontime,proposedACTION-1.arequirestheplanttobeinMODE3withinthenext6hoursandinMODE4withinthefollowing54hours.TheproposedactionwillbringtheplanttoaMODEinwhichtheLCOdoesnotapply.The6hourcompletiontimeisreasonable,basedonoperatingexperience,toreachMODE3fromfullpowerconditionsinanorderlymanner,andwithoutchallengingplantsystems;anditisconsistentwithPSL1andPSL2TS3.0.3.TheextendedintervaltoreachMODE4includesadditionaltime(48hours)forrestorationoftheCStrain,beyondthe6hourstypicallyallottedbyTS3.0.3toenterthismode.ThisisreasonablewhenconsideringthatthedrivingforceforareleaseofradioactivematerialfromtheRCSisreducedinMODE3.Theproposedcondition,requiredaction,completiontimes,andtheirbasesareequivalenttoAction"B"ofSTSLCO3.6.6A.ACTION-1.b:Withonecontainmentcoolingtraininoperable,proposedACTION-1.brequirestheinoperabletraintoberestoredtoOPERABLEstatuswithin7days,andwithin10daysfrominitialdiscoveryoffailuretomeettheLCO.Inthiscondition,theremainingOPERABLEsprayandcoolingsystemcomponentsarecapableofprovidingtheiodineremovalfunctionandatleast1004oftheheatremovalneedsafteranaccident.The7daycompletiontimetakesintoaccounttheredundantheatremovalcapabilitiesaffordedbythecombinationsoftheCSSystemandtheContainmentCoolingSystem,andthelowprobabilityofaDBAoccurringduringthisperiod.The10days(frominitialdiscoveryoffailuretomeettheLCO)portionofthecompletiontimeisbasedonengineeringjudgement,andclarifiesthat,failuretocompletelysatisfytheLCOforanexcessiveintervalisnotpermitted.Ittakesintoaccountthelowprobabilityofcoincidententryintotwoconditionsinthisspecification(definedinproposedACTION-1.c),coupledwiththe St.LucieUnit1andUnit2DocketNos.50-335and50-389ProposedLicenseAmendmentsContainmentSraandCoolinSstemsL-94-260Attachment1Page6of8lowprobabilityofanaccidentoccurringduringthistime.Theproposedcondition,requiredaction,completiontimes,andtheirbasesareequivalenttoAction"C"ofSTSLCO3.6.6A.IftheinoperablecontainmentcoolingtraincannotberestoredtoOPERABLEstatuswithintherequiredcompletiontime,proposedACTION-1.brequirestheplanttobeinMODE3withinthenext6hoursandinMODE4withinthefollowing6hours.TheproposedactionwillbringtheplanttoaMODEinwhichtheLCOdoesnotapply.Theallowedcompletiontimesarereasonable,basedonoperatingexperience,toreachtherequiredplantconditionsfromfullpowerconditionsinanorderlymannerandwithoutchallengingplantsystems.Theproposedcondition,requiredaction,completiontimes,andtheirbasesareequivalenttoAction"F"ofSTSLCO3.6.6A;andareconsistentwithPSL1andPSL2TS3.0.3.ACTION-1.c:WithoneCStrainandonecontainmentcoolingtraininoperable,proposedACTION-1.callowsconcurrententryintoACTION-l.aandACTION-l.b;andallowstheactioncompletionintervalstobetrackedseparately,startingfromthetimethateachtrainwasdiscoveredinoperable.TheremainingOPERABLEsprayandcontainmentcoolingsystemcomponentsarecapableofprovidingtheiodineremovalfunctionand1004ofaccidentheatloadremoval.ConsideringthenarrativeformatandexistingstructureofthePSL1andPSL2technicalspecifications,thisactionstatementprovidesclarificationthatentryintobothACTIONS-1.aand1.bwithinthisLCOispermissible,andspecifieshoweachactioncompletionintervalwillbetracked.ProposedACTION-l.cisconsistentwithPart1.3,"CompletionTimes",oftheSTS"USEANDAPPLICATION"section.ACTION-i.d:Withtwocontainmentcoolingtrainsinoperable,proposedACTION-1.drequiresatleastonecoolingtraintoberestoredtoOPERABLEstatuswithin72hours.Inthiscondition,theOPERABLEspraytrainsarecapableofprovidingtheiodineremovalfunctionandtheheatremovalneedsafteranaccident.FPLhasevaluatedthis,conditionforthelimitingLOCAandMSLBaccidentspostulatedforthePSLlandPSL2containmentanalyses,andhasconfirmedthattwoCStrainsarecapableofsatisfying1004oftheaccidentheatremovalrequirements.The72hourcompletiontimetakesintoaccounttheredundantheatremovalcapabilitiesaffordedbytheCSSystem,andthelowprobabilityofaDBA

~F St.LucieUnit1andUnit2DocketNos.50-335and50-389ProposedLicenseAmendmentsContainmentSraandCoolinSstemsL-94-260Attachment1Page7of8occurringduringthisperiod.Theproposedcondition,requiredaction,completiontime,andtheirbasesareequivalenttoACTION"D"ofSTSLCO3.6.6A.IfatleastoneinoperablecontainmentcoolingtraincannotberestoredtoOPERABLEstatuswithintherequiredcompletiontime,proposedACTION-l.drequirestheplanttobeinMODE3withinthenext6hoursandinMODE4withinthefollowing6hours.TheproposedactionwillbringtheplanttoaMODEinwhichtheLCOdoesnotapply.Theallowedcompletiontimesarereasonable,basedonoperatingexperience,toreachtherequiredplantconditionsfromfullpowerconditionsinanorderlymannerandwithoutchallengingplantsystems.Theproposedcondition,requiredaction,completiontimes,andtheirbasesareequivalenttoAction"F"ofSTSLCO3.6.6A;andareconsistentwithPSLlandPSL2TS3.0.3.ACTION-l.e:WithtwoCStrainsinoperableoranycombinationofthreeormoretrainsinoperable,proposedACTION-1.erequiresLCO3.0.3tobeenteredimmediately.Inthiscondition,theunitisoutsidetheaccidentanalysesfortheapplicableoperationalmodes.Theproposedcondition(s),requiredaction,completiontime,andbasisareequivalenttoACTION"E"ofSTSLCO3.6.6A.ACTION<<2.a:WithonecontainmentcoolingtraininoperableduringMODE3conditionswithpressurizerpressure<1750psia,ACTION-2.arequirestheinoperabletraintoberestoredtoOPERABLEstatuswithin72hours.FPLhasverifiedthat,duringtheseconditions,containmentdesignpressureandtemperaturewillnotbeexceededwhentwocontainmentfancoolersareoperable(bothCStrainsoutofservice).Therefore,theactioncompletiontimeisreasonable,takingintoaccountthelowprobabilityofaDBAoccurringduringthisperiodandtheheatremovalcapabilityoftheremainingOPERABLEfancoolers.IftheinoperablecontainmentcoolingtraincannotberestoredtoOPERABLEstatuswithintherequiredactioncompletiontime,ACTION-2.arequirestheplanttobeinMODE4withinthenext6hours.ThisproposedactionwillbringtheplanttoamodeinwhichtheLCOdoesnotapply,andisconsistentwithPSL1andPSL2TS3.0.3.

St.LucieUnit1andUnit2DocketNos.50-335and50-389ProposedLicenseAmendmentsContainmentSraandCoolinSstemsL-94-260Attachment1Page8of8ACTION-2.b:WithtwocontainmentcoolingtrainsinoperableduringMODE3conditionswithpressurizerpressure<1750psia,ACTION-2.brequiresLCO3.0.3tobeenteredimmediately.SincetheproposedLCOdoesnotrequiretheCSsystemtobeOPERABLEwithpressurizerpressure<1750psia,theunitwillbeoutsidethecontainmentanalysisforthiscondition.TheproposedactionwillbringtheplanttoanoperationalMODEinwhichtheLCOdo'esnotapply.SURVEILLANCEREQUIREMENTS:Theproposedsurveillancerequirements(SR)areequivalenttothesurveillancesidentifiedinSpecification3.6.6AoftheSTS.ItisnotedthatneitherPSL1norPSL2requireapre-filledsprayheadertoensurethatsprayflowwillbeadmittedtothecontainmentatmospherewithinthetimeframeassumedinthesafetyanalyses;therefore,SR3.6.6A.4oftheSTSisnotapplicable.ConclusionThechangesproposedforexistingTS3/4.6.2.1and3/4.6.2.3havebeenverifiedtobeconsistentwiththePSL1andPSL2safetyanalyses.TheproposedrestructuredTS3/4.6.2.1,consideringplantspecificdifferences,isequivalenttoNUREG-1432,Revision0,Specification3.6.6Aanditsassociatedbases,andincludesallrelatedrequirementsfortheContainmentSprayandContainmentCoolingSystems.Therefore,FPLconsiderstheproposedamendmenttobeacceptableasaTSlineitemimprovementforSt.LucieUnit1andUnit2,consistentwiththeCommission'sFinalPolicyStatementonTechnicalSpecificationImprovements(58FR39132).

St.LucieUnit1andUnit2DocketNos.50-335and50-389ProposedLicenseAmendmentsContainmentSraandCoolinSstemsATTACHMENT2DETERMINATIONOFNOSIGNIFICANTHAZARDSCONSIDERATION St.LucieUnit1andUnit2DocketNos.50-335and50-389ProposedLicenseAmendmentsContainmentSraandCoolinSstemsL-94-260Attachment2Page1of2DETERMINATIONOFNOSIGNIFICANTHAZARDSCONSIDERATIONPursuantto10CFR50.92,adeterminationmaybemadethataproposedlicenseamendmentinvolvesnosignificanthazardsconsiderationifoperationofthefacilityinaccordancewiththeproposedamendmentwouldnot:(1)involveasignificantincreaseintheprobabilityorconsequencesofanaccidentpreviouslyevaluated;or(2)createthepossibilityofanewordifferentkindofaccidentfromanyaccidentpreviouslyevaluated;or(3)involveasignificantreductioninamarginofsafety.Eachstandardisdiscussedasfollows:(1)Operationofthefacilityinaccordancewiththeproposedamendmentwouldnotinvolveasignificantincreaseintheprobabilityorconsequencesofanaccidentpreviouslyevaluated.TheproposedamendmentwillupgradetheexistingLimitingConditionsforOperation(LCOs)associatedwiththeContainmentCoolingandSpraySystemstobeconsistentwithNUREG-1432,StandardTechnicalSpecificationsforCombustionEngineeringPlants.TheContainmentCoolingandSpraySystemsarenotinitiatorsofaccidentspreviouslyevaluated,butareincludedaspartofthesuccesspathsassociatedwithmitigatingvariousaccidentsandtransients.TheredundancyaffordedbyContainmentCoolingandSpraySystemsinconjunctionwiththerequirementsoftheproposedLCOassuresthatthesafetyfunctionofthesesystemscanbeaccomplishedconsideringsinglefailurecriteria.NeitherthedesignnorthesafetyfunctionoftheContainmentCoolingandSpraySystemshavebeenaltered,andtheproposedamendmentdoesnotchangetheapplicableplantsafetyanalyses.Therefore,operationofthefacilityinaccordancewiththeproposedamendmentwillnotinvolveasignificantincreaseintheprobabilityorconsequencesofanaccidentpreviouslyevaluated.(2)Operationofthefacilityinaccordancewiththeproposedamendmentwouldnotcreatethepossibilityofanewordifferentkindofaccidentfromanyaccidentpreviouslyevaluated.Theproposedamendmentwillnotchangethephysicalplantorthemodesofoperationdefinedinthefacilitylicense.Thechanges St.LucieUnit1andUnit2DocketNos.50-335and50-389ProposedLicenseAmendmentsContainmentSraandCoolinSstemsL-94-260Attachment2Page2of2areadministrativeinnatureinthattheydonotinvolvetheadditionofnewequipmentorthemodificationofexistingequipment,nordotheyotherwisealterthedesignofSt.LucieUnit1&2systems.Therefore,operationofthefacilityinaccordancewiththeproposedamendmentwouldnotcreatethepossibilityofanewordifferentkindofaccidentfromanyaccidentpreviouslyevaluated.(3)Operationofthefacilityinaccordancewiththeproposedamendmentwouldnotinvolveasignificantreductioninamarginofsafety.ThesafetyfunctionoftheContainmentCoolingSystemistoprovidecontainmentheatremovalduringnormaloperationandaccidentconditions.ThesafetyfunctionoftheContainmentSpraySystemistoprovidecontainmentheatandiodineremovalduringaccidentconditions.Theproposedamendment,inconjunctionwiththeredundancyaffordedbytheContainmentCoolingandSpraysystemdesign,assuresthatthesesafetyfunctionscanbeaccomplishedconsideringsingle-failurecriteria.Thebasesforrec{uiredactionsandtheactioncompletiontimesspecifiedfor.inoperableContainmentCoolingandSpraytrainsareconsistentwiththecorrespondingspecificationsinNUREG-1432.ThesafetyanalysesforapplicableaccidentsandtransientsremainunchangedfromthosepreviouslyevaluatedandreportedintheUpdatedFinalSafetyAnalysisReport.Therefore,operationofthefacilityinaccordancewiththeproposedamendmentwouldnotinvolveasignificantreductioninamarginofsafety.BasedontheabovediscussionandthesupportingEvaluationofTechnicalSpecificationchanges,FPLhasdeterminedthattheproposedlicenseamendmentinvolvesnosignificanthazardsconsideration.