ML17229A758

Application for Amends to Licenses DPR-67 & NPF-16 to Incorporate Attached TS Revs.Proposed Amends Are Administrative in Nature & Will Modify Explosive Gas Mixture Surveillance Requirement 4.11.2.5.1

ML17229A758
Person / Time
Site:	Saint Lucie
Issue date:	06/03/1998
From:	STALL J A FLORIDA POWER & LIGHT CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML17229A759	List: ML17229A758 ML17229A760
References
L-98-125, NUDOCS 9806100093
Download: ML17229A758 (17)

Text

CATEGORY1REGULATOINFORMATION DISTRIBUTION STEM(RIDS)ACCESSION NBR:9806100093 DOC.DATE:

98/06/03NOTARIZED:

YESFACIL:50-335 St.LuciePlant,Unit1,FloridaPower&LightCo.P55-339St.LuciePlant,Unit2,FloridaPower&.LightCo.AUTH.NAMEAUTHORAFFILIATION STALL,J.A.

FloridaPower&LightCo.RECIP.NAME RECIPIENT AFFILIATION DocumentControlBranch(Document ControlDesk)DOCKETI0500033505000389

SUBJECT:

Application foramendstolicensesDPR-67&NPF-16toincorporate attachedTSrevs.Proposedamendareadministrative innature&willmodifyexplosive gasmixturesurveillance requirement 4.11.2.5.1.

D1STR1'BUT1ON CODE:AOOIDCOPIESRECEIVED:LTR jENCLiSIZE:jg,kTITLE:ORSubmittal:

GeneralDistribution NOTES:ATERECIPIENT IDCODE/NAME PD2-3LAGLEAVES,W INTERNAL:

ACRSNRR/DE/ECGB/A NRR/DRCH/HICB NRR/DSSA/SRZB OGC/HDS3EXTERNAL:

NOACCOPIESLTTRENCL1111111111111011RECIPIENT IDCODE/NAME PD2-3PDILECENT+1RDEEMCBNRR/DSSA/SPLB NUDOCS-ABSTRACT NRCPDRCOPIESLTTRENCL111111111111DUNNOTETOALL"RIDS"RECIPIENTS:

PLEASEHELPUSTOREDUCEWASTE.TOHAVEYOURNAMEORORGANIZATION REMOVEDFROMDISTRIBUTION LISTSORREDUCETHENUMBEROFCOPIESRECEIVEDBYYOUORYOURORGANIZATION, CONTACTTHEDOCUMENTCONTROLDESK(DCD)ONEXTENSION 415-2083TOTALNUMBEROFCOPIESREQUIRED:

LTTR14ENCL13 FloridaPower5LightCompany,6351S.OceanDrive,JensenBeach,FL34957June3,1998L-98-12510CFR50.90U.S.NuclearRegulatory Commission Attn:DocumentControlDeskWashington, D.C.20555RE:St.LucieUnit1andUnit2DocketNos.50-335and50-389ProposedLicenseAmendments ExlosiveGasMixtureMonitorin Reuirements Pursuantto10CFR50.90,FloridaPower8LightCompany(FPL)requeststoamendFacilityOperating LicenseDPR7forSt.LucieUnit1andNPF-16forSt.LucieUnit2byincorporating theattachedTechnical Specifications (TS)revisions.

Theproposedamendments areadministrative innatureandwillmodifyExplosive GasMixtureSurveillance Requirement 4.11.2.5.1 toprovidefortheuseofthelaboratory gaspartitioner toperiodically analyzetheconcentration ofoxygenintheonservicewastegasdecaytankintheeventthatcontinuous monitoring capability becomesinoperable.

Useofthelabgaspartitioner toanalyzeperiodicsamplesisapreviously approvedconditional exception tothecontinuous monitoring requirement ofSpecification 4.11.2.5.1 whichwasinadvertently removedbysubsequent licenseamendments.

Itisrequested thattheproposedamendments, ifapproved, beissuedasexpeditiously aspracticable toensurethatcompliance withtheexplicittermsoftherequirement forcontinuous monitoring, ascurrently stated,wouldnotresultinunnecessarily bypassing anonservicewastegasdecaytank.Attachment 1isanevaluation oftheproposedchanges.Attachment 2isthe"Determination ofNoSignificant HazardsConsideration."

Attachment 3containscopiesoftheaffectedtechnical speciTications pagesmarkeduptoshowtheproposedchanges.Theproposedamendments havebeenreviewedbytheSt.LucieFacilityReviewGroupandtheFPLCompanyNuclearReviewBoard.Inaccordance with10CFR50.91(b)(1),copiesoftheproposedamendments arebeingforwarded totheStateDesigneefortheStateofFlorida.Pleasecontactusifthereareanyquestions aboutthissubmittal.

Verytrulyyours,J.A.StallVicePresident St.LuciePlant9806%00093 F80M3PDRADOCK05000335!PPDRanFPLGroupcompany

~~

St.LucieUnit1andUnit2Pocket,Nos.50-335and50-389ProposedLicenseAmendments ExlosiveGasMixtureMonitorin Reuirements L-98-125Page2JAS/RLDAttachments cc:RegionalAdministrator, RegionII,USNRCSeniorResidentInspector, USNRC,St.LuciePlantMr.W.A.Passetti, FloridaDepartment ofHealthandRehabilitative Services St.LucieUnit1andUnit2DocketNos.50-335and50-389ProposedLicenseAmendments ExlosiveGasMixtureMonitorin Reuirements L-98-125Page3STATEOFFLORIDA))ss.COUNTYOFST.LUCIE)J.A.Stallbeingfirstdulysworn,deposesandsays:ThatheisVicePresident, St.LuciePlant,fortheNuclearDivisionofFloridaPower8LightCompany,theLicenseeherein;Thathehasexecutedtheforegoing document; thatthestatements madeinthisdocumentaretrueandcorrecttothebestofhisknowledge, information andbelief,andthatheisauthorized toexecutethedocumentonbehalfofsaidLicensee.

J.A.StallSTATEOFFLORIDACOUNTYOFSworntoandsubscribed beforemethis3dayofbyJ.A.Stall,whoispersonally knowntome..Signature ofNot"Public-ggli,yfggrida

?~::P.MYCMNSSIONfCC646163EXP1RESMay12,2001BONOEDllSUTROYFANSSURANCE, BC.NameofNotaryPublic(Print,Type,orStamp) 0Lf*$~"

St.LucieUnit1andUnit2DocketNos.50-335and50-389ProposedLicenseAmendments ExlosiveGasMixtureMonitorin Reuirements ATTACHMENT 1toFPLletterL-98-125EVALUATION OFPROPOSEDTSCHANGES St.LucieUnit1andUnit2DocketNos.50-335and50-389ProposedLicenseAmendments ExlosiveGasMixtureMonitorin Reuirements L-98-125Attachment 1Page1of5EVALUATION OFPROPOSEDTSCHANGES1.0Introduction Theproposedamendments toFacilityOperating LicensesDPR-67forSt.LucieUnit1(PSL1)andNPF-16forSt.LucieUnit2(PSL2)willmodifytheexplosive gasmixturecontinuous monitoring requirement specified forthewastegasdecaytanksinSurveillance Requirement 4.11.2.5.1 toidentifyaconditional exception tothisrequirement whichhadbeenpreviously approvedandinadvertently removedbysubsequent licenseamendments.

Theproposedchangewillallowlimitedoperation ofthewastegasdecaytanksusingthelaboratory gaspartitioner toperiodically analyzetheoxygenconcentration ofwastegasesintheeventthatcontinuous monitoring capability becomesinoperable, andwillensurethatcompliance withtheliteralmeaningof"continuously monitoring thewastegases,"ascurrently statedinthesurveillance, wouldnotresultinunnecessarily bypassing anonservicedecaytank.ltisconcluded inAttachment 2thattheproposedTSchangesdonotinvolveasignificant hazardsconsideration.

2.D~BkdSt.LucieTechnical Specification (TS)3/4.11.2.5, Explosive GasMixfure,provideslimitsandmonitoring requirements forcombinations ofoxygenandhydrogeninthewastegasdecaytanksforeachPSLunit.ThepurposeofSpecification 3/4.11.2.5 andassociated instrumentation operability requirements (formerly TS3/4.3.3.10) istoprovideassurance thatunacceptable mixturesofoxygenandhydrogenwillbedetectedandmitigated duringoperations usingthewastegasholdupsystemateachunit.Thewastegasholdupsystemincludesthreetanksforthepurposeofreducingthetotalradioactivity byallowingradioactive decaypriortoreleasetotheenvironment.

Oneofthethreedecaytanksisnormallyalignedtoreceivewastegasfromtheprocessing systemandservesasthe"onservice"wastegasdecaytank.Dualgasanalyzers areinstalled inthewastegassystemtomonitortheoxygenconcentration ofthetypically hydrogenrichgases,andtherebyensurethatunacceptable mixturesofoxygenandhydrogencanbedetected.

Surveillance Requirement 4.11.2.5.1 currently requiresthattheconcentration ofoxygenshallbedetermined tobewithinthelimitsofSpecification 3.11.2.5by"continuously St.LucieUnit1andUnit2DocketNos.50-335and50-389ProposedLicenseAmendments ExlosiveGasMixtureMonitorin Reuirements L-98-125Attachment 1page2of5monitoring" thewastegasesintheonservicewastegasdecaytank.Theoxygenmonitoroperability requirements, however,arecontained intheUpdatedFinalSafetyAnalysisReport(UFSAR)foreachSt.LucieUnitandprovideaconditional exception tothe"continuously monitoring" criterion which,intheeventthatbothoftheinstalled oxygenmonitorsbecomeinoperable, allowsoperation ofthewastegasholdupsystemforupto30daysprovidedthatsamplesofoxygenareanalyzedusingthelabgaspartitioner atleastonceper24hours(Ref:PSL1UFSARSection13.8.1.4; PSL2UFSARSection13.7.1.4).

Theexplosive gasmonitoring instrumentation requirements wereformerlyinthefacilitytechnical specifications asTS3/4.3.3.10 andwererelocated totheUFSAR,withoutanychangestotheapprovedrequirements, consistent withGenericLetter(GL)95-10(Ref:LicenseAmendment Nos.147and86,PSL1andPSL2respectively:

8/20/96).

TS3/4.11.2.5 wasnotaddressed bytherelocation process,andSurveillance Requirement 4.11.2.5.1 specified thatthewastegasesintheonservicewastegasdecaytankshallbecontinuously monitored "withtheoxygenmonitorrequiredOPERABLEbyTable3.3-13ofSpecification 3.3.3.10."

Aspartofanadministrative updatetotheSt.LucieTS,thereference to"withtheoxygenmonitorrequiredOPERABLEbyTable3.3-13ofSpecification 3.3.3.10" wasremovedfromSurveillance Requirement 4.11.2.5.1 sincetheinstrumentation TSnolongerexisted(Ref:LicenseAmendment Nos.152and89,PSL1andPSL2respectively:

9/22/97).

However,aconditional modifierforthe"continuously monitoring" criterion wasnotincludedwiththeadministrative updatetoreflecttheactionthathadbeenapprovedforimplementation whenbothinstalled oxygenmonitorsbecomeinoperable andwhichhadbeenrelocated totheUFSAR.OnNovember21,1997,NRCInformation Notice(IN)97-80,LicenseeTechnical Specifications

/nterprefations, wasissuedtoalertlicensees toproblemsidentified withlicenseeTSinterpretations.

IN97-80states,inpart,"Licensee TSinterpretations canenhancethesafeoperation oftheplantbyhelpingtheplantstaffunderstand andcorrectly implement TSrequirements.

However,licensees mustexercisecautiontoensurethatTSinterpretations donotchangethewording,themeaning,ortheintentofTSrequirements."

Similarly, NRCInspection ManualPart9900,TechGuidance, LicenseeTS/nterprefations (2/3/97)concludes, inpart,"Asstatedearlier,themostimportant factoristhattheTSinterpretation doesnotconflictwithTSwordingorintent."..."Reliance onaTSinterpretation whenanerrorisdiscovered intheTSisnotacceptable.

TheNRCexpects St.LucleUnit1andUnit2DocketNos.50-335and50-389ProposedLicenseAmendments ExlosiveGasMixtureMonitorin Reuirements L-98-125Attachment 1Page3of5licensees tocomplywiththeexplicittermsofTSorapplyforalicenseamendment, pursuantto10CFR50.90,tochangetheTStermsratherthanrelyingonaTSinterpretation orengineering analysestojustifyatemporary departure fromTSrequirements.

IntheeventthatanerrorinTSisdiscovered, thelicenseeshouldrestrictplantoperations, asappropriate, untilanamendment canbeprocessed orotheracceptable actionsaretaken."Compliance withtheexplicittermsofSurveillance Requirement 4.11.2.5.1, aspresently stated,cannotbeachievedunlessatleastoneoxygenmonitoriscontinuously monitoring thewastegases,orunlessthewastegassystemisalignedtobypassthewastegasdecaytanks.3.0ProosedChanes:DescritionandBases/Justification Attachment 3containscopiesoftheaffectedTSpagesmarked-up toshowtheproposedchanges.3.1DescritionofChanestoTS4.11.2.5.1 (a)Addanasterisktotheword"continuously,"

suchthattheSpecification reads,Theconcentration ofoxygeninthewastegasdecaytankshallbedetermined tobewithintheabovelimitsbycontinuously*

monitoring thewastegasesintheonservicewastegasdecaytank.(b)Addthefollowing

footnote,

• Whencontinuous monitoring capability isinoperable, wastegasesshallbemonitored inaccordance withtheactionsspecified fortheWasteGasDecayTanksExplosive GasMonitoring SysteminChapter13oftheUpdatedFinalSafetyAnalysisReport.

St.LucieUnit1andUnit2DocketNos.50-335and50-389Propos'ed LicenseAmendments ExlosiveGasMixtureMonitorin Reuirements L-98-125Attachment 1Page4of53.2Basis/Justificationfor ProosedChanesCompliance withtheexplicitterms,"continuously monitoring thewastegases,"ofSurveillance Requirement 4.11.2.5.1, aspresently stated,cannotbeachievedwhentheoxygenmonitorsinstalled toanalyzethegasesinthewastegasholdupsystembecomeinoperable.

However,operation ofthewastegasholdupsystemcancontinueifthesystemisalignedtobypassthewastegasdecaytankswhichwouldthenmakethesurveillance notapplicable.

Thisconstraint inadvertently evolvedfrompreviouslicenseamendments issuedduring1996and1997(Nos.152and147forPSL1;Nos.89and86forPSL2)whichrelocated theexplosive gasmonitoring instrumentation operability requirements (formerly TS3/4.3.3.10) toChapter13oftheUFSARforeachSt.Lucieunit,andthendeletedthereference totheseoperability requirements fromSurveillance Requirement 4.11.2.5.1 aspartofanadministrative update'to technical specifications.

TheUFSARoperability requirements fortheWasteGasDecayTanksExplosive GasMonitoring Systemcontainan"ACTION1"whichappliesintheeventatleastoneoxygenmonitorisnotOPERABLEduringwastegasholdupsystemoperation.

ACTION1providesforoperation ofthewastegasholdupsystem"tocontinueforupto30daysprovidedsamplesofoxygenareanalyzedbythelabgaspartitioner atleastonceper24hours."Therewerenochangestotheoperability requirements orthesubjectACTIONstatement fortheexplosive gasmonitoring instrumentation duringtherelocation process,andtherequirements intheUFSARarethesameasprovidedinformerTS3/4.3.3.10.

TheproposedrevisiontoSurveillance Requirement 4.11.2.5.1 isadministrative innature,andwillmaketheliteralmeaningofthisspecification consistent withtheintended, andpreviously

approved, conditional exception tothecontinuous monitoring requirement intheeventthatbothinstalled gasanalyzers becomeinoperable.

Ifthecontinuous monitoring capability becomesinoperable, compliance withtheexplicittermsofthesurveillance requirement willbepossiblewithoutunnecessarily bypassing thewastegasdecaytanks.Operation ofthewastegassystemusinganonservicedecaytankisthepreferred alignment ofthewastegassystemtoallowstorageandadditional radioactive decaypriortoreleaseofwastegasestotheenvironment, andisconsistent withALARAobjectives.

St.LucieUnit1andUnit2DocketNos.50-335and50-389ProposedLicenseAmendments ExlosiveGasMixtureMonitorin Reuirements L-98-125Attachment 1Page5of54.0Environmental Consideration Theproposedlicenseamendment changesrequirements withrespecttoinstallation oruseofafacilitycomponent locatedwithintherestricted areaasdefinedin10CFRPart20andchangesthesurveillance requirements.

Theproposedamendment involvesnosignificant increaseintheamountsandnosignificant changeinthetypesofanyeffluents thatmaybereleasedoffsite,andnosignificant increaseinindividual orcumulative occupational radiation exposure.

FPLhasconcluded thattheproposedamendment involvesnosignificant hazardsconsideration andmeetsthecriteriaforcategorical exclusion setforthin10CFR51.22(c)(9) andthat,pursuantto10CFR51.22(b),

anenvironmental impactstatement orenvironmental assessment neednotbepreparedinconnection withissuanceoftheamendment.

5.0 Conclusion

Aninconsistency betweenExplosive GasMixfureTS3/4.11.2.5 andtherequirements fortheWasteGasDecayTanksExplosive GasMonitoring Sysfemcontained intheUFSARwasinadvertently createdbypreviouslicenseamendments.

Compliance withtheexplicittermsofSurveillance Requirement 4.11.2.5.1, aspresently stated,preventsimplementation ofapreviously approvedactionforacasewherecontinuous monitoring capability foroxygenconcentration inwastegasesbecomesinoperable, andwouldresultinunnecessarily bypassing theWasteGasDecayTanks.Theproposedamendments areadministrative innature,andareconsistent withregulatory guidanceinvolving TSinterpretations.

St.LucieUnit1andUnit2DocketNos.50-335and50-389ProposedLicenseAmendments ExlosiveGasMixtureMonitorin Reuirements ATTACHMENT 2toFPLLetterL-98-125DETERMINATION OFNOSIGNIFICANT HAZARDSCONSIDERATION St.LucieUnit1andUnit2DocketNos.50-335and50-389ProposedLicenseAmendments ExlosiveGasMixtureMonitorin Reuirements L-98-126Attachment 2Page1of2DETERMINATION OFNOSIGNIFICANT HAZARDSCONSIDERATION Description ofamendmeat request:Theproposedamendments willmodifyExplosive GasMixtureSurveillance Requirement 4.11.2.5.1 toprovideforusingthelaboratory gaspartitioner toperiodically analyzetheoxygenconcentration ofwastegasesintheonservicewastegasdecaytankintheeventthatcontinuous monitoring capability becomesinoperable.

Theproposedchangesareadministrative innatureandwillrectifyaninconsistency betweenSpecification 4.11.2.5.1 andtheUpdatedFinalSafetyAnalysisReport(UFSAR)thatwasinadvertently createdbypreviouslicenseamendments.

Pursuantto10CFR50.92,adetermination maybemadethataproposedlicenseamendment involvesnosignificant hazardsconsideration ifoperation ofthefacilityinaccordance withtheproposedamendment wouldnot:(1)involveasignificant increaseintheprobability orconsequences ofanaccidentpreviously evaluated; or(2)createthepossibility ofanewordifferent kindofaccidentfromanyaccidentpreviously evaluated; or(3)involveasignificant reduction inamarginofsafety.Eachstandardisdiscussed asfollows:(1)Operation ofthefacilityinaccordance withtheproposedamendment wouldnotinvolveasignificant increaseintheprobability orconsequences ofanaccidentpreviously evaluated.

Theproposedlicenseamendments areadministrative innatureandwillrectifyaninconsistency betweenSurveillance Requirement 4.11.2.5.1 andtheUFSARthatwasinadvertently createdbypreviouslicenseamendments.

Therevisions willreinstate apreviously approvedconditional exception totheexplicittermsofthepresently statedTSrequirement tocontinuously monitorthewastegasesintheonserviceWasteGasDecayTank,andallowlimitedsystemoperation usingthelaboratory gaspartitioner toperiodically analyzegassamplesintheeventthatcontinuous monitoring capability becomesinoperable.

Limitsforpotentially explosive mixturesofwastegaseshavenotbeenaltered,andexplosive gasmonitoring instrumentation doesnotpreventormitigatedesignbasisaccidents ortransients whichassumeafailureoforachallenge toafissionproductbarrier.Theproposedrevisions donotinvolveanychangetotheplantaccidentanalysesassumptions, anddonotinvolveaccidentinitiators.

Therefore, operation ofeitherfacilityinaccordance withitsproposedamendment wouldnotinvolveasignificant increaseintheprobability orconsequences ofanaccidentpreviously evaluated.

St.LucieUnit1andUnit2DocketNos.50-335and50-389ProposedLicenseAmendments ExlosiveGasMixtureMonitorin Reuirements L-98-125Attachment 2Page2of2(2)Operation ofthefacilityinaccordance withtheproposedamendment wouldnotcreatethepossibility ofanewordifferent kindofaccidentfromanyaccidentpreviously evaluated.

Theproposedlicenseamendments areadministrative innatureandrectifyaninconsistency betweenTechnical Specification 4.11.2.5.1 andtheUFSARthatwasinadvertently createdbypreviouslicenseamendments.

Therevisions willnotchangethephysicalplantor,themodesofplantoperation definedintheFacilityLicenses.

Thechangesdonotinvolvetheadditionormodification ofequipment nordotheyalterthedesignofplantsystems.Therefore, operation ofeitherfacilityinaccordance withitsproposedamendment wouldnotcreatethepossibility ofanewordifferent kindofaccidentfromanyaccidentpreviously evaluated.

(3)Operation ofthefacilityinaccordance withtheproposedamendment wouldnotinvolveasignificant reduction inamarginofsafety.Theproposedlicenseamendments areadministrative innatureandrectifyaninconsistency betweenSurveillance Requirement 4.11.2.5.1 andtheUFSARthatwasinadvertently createdbypreviouslicenseamendments.

Therevisions willreinstate apreviously approvedconditional exception totheexplicittermsofthepresently statedTSrequirement tocontinuously monitorthewastegasesintheonserviceWasteGasDecayTank,andallowlimitedsystemoperation usingthelaboratory gaspartitioner toperiodically analyzegassamplesintheeventthatcontinuous monitoring capability becomesinoperable.

Limitsforpotentially explosive mixturesofwastegaseshavenotbeenaltered,andexplosive gasmonitoring instrumentation doesnotpreventormitigatedesignbasisaccidents ortransients whichassumeafailureoforachallenge toafissionproductbarrier.Theproposedchangesdonotalterthebasisforanytechnical specification thatisrelatedtotheestablishment of,orthemaintenance of,anuclearsafetymargin.Therefore, operation ofeitherfacilityinaccordance withitsproposedamendment wouldnotinvolveasignificant reduction inamarginofsafety.Basedontheabovediscussion andthesupporting Evaluation ofTechnical Specification changes,FPLhasdetermined thattheproposedlicenseamendments involvenosignificant hazardsconsideration.