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{{#Wiki_filter:REGULATORYINFQR{'{ATIONDISTRIBUTIQNSYSTEM(RIDS)ACCESSIONNBR:S60627026SDQC.DATE:86/06/23NOTARIZED:YESFACIL:50-220NineNilePointNuclearStationsUnitiiNiagaraPoueAUTH.NA{'{EAUTHORAFFILIATIONNANQAN,C.V.-NiagaraNohawkPowerCorp.RECIP.NANERECIPIENTAFFILIATIONZWOLINBKliJ.A.BWRProJectDirectorate
{{#Wiki_filter:REGULATORY INFQR{'{ATION DISTRIBUTIQNSYSTEM(RIDS)ACCESSION NBR:S60627026S DQC.DATE:86/06/23NOTARIZED:
YESFACIL:50-220NineNilePointNuclearStationsUnitiiNiagaraPoueAUTH.NA{'{EAUTHORAFFILIATION NANQAN,C.V.-NiagaraNohawkPowerCorp.RECIP.NANERECIPIENT AFFILIATION ZWOLINBKli J.A.BWRProJectDirectorate


==SUBJECT:==
==SUBJECT:==
ForwardsValsIZcIItoRev4toupdatedFBARforNineNilePointNuclearStationUniti~incorporatingNodscompletedrito860101'7/gp,gDIBTRIBUDE:A053DCPIESECEIVED:LTRENCLSIZE:TITLE:ORSubmittal:UpdatedFBAR(50.71)DOCKET005000220RECIPlENTIDCODE/NANEBWRADTSBWREICSBBWRPD1LQKELLY.J0BWRRSBCOPIESLTTRENCL02010110RECIPIENTIDCODE/NA{'{EBWREBBWRFQBBWRPD1PDBWRPSBCOPIESLTTRENCL10000INTERNAL:REQFILE0502NRRROE''l'l.LRQN106EXTERNAL:DNB/DBBLPDRNSIC1111FRANKLINNRCPDR03111TOTALNUii{BEROFCOPIEBREQUIRED:LTTR20ENCL11 I4).,IIIII't~II4qM'I1' NIAGARAMOHAWKPOWERCORPORATION/300ERIEBOULEVARDWEST,SYRACUSE.N.Y.13202/TELEPHONE(315)4741511June23,1986NMPlL0071DirectorofNuclearReactorRegulationAttention:Mr.JohnA.Zwolinski,ProjectDirectorBWRProjectDirectorateNumber1DivisionofBWRLicensingU.S.NuclearRegulatoryCommissionWashington,D.C.20555Re:NineMilePointUnit1DocketNo.50-220DPR-63
ForwardsValsIZcIItoRev4toupdatedFBARforNineNilePointNuclearStationUniti~incorporating Nodscompleted rito860101'7/gp,gDIBTRIBUDE:A053DCPIESECEIVED:LTRENCLSIZE:TITLE:ORSubmittal:UpdatedFBAR(50.71)DOCKET005000220RECIPlENT IDCODE/NANE BWRADTSBWREICSBBWRPD1LQKELLY.J0BWRRSBCOPIESLTTRENCL02010110RECIPIENT IDCODE/NA{'{E BWREBBWRFQBBWRPD1PDBWRPSBCOPIESLTTRENCL10000INTERNAL:
REQFILE0502NRRROE''l'l.LRQN106EXTERNAL:
DNB/DBBLPDRNSIC1111FRANKLINNRCPDR03111TOTALNUii{BEROFCOPIEBREQUIRED:
LTTR20ENCL11 I4).,IIIII't~II4qM'I1' NIAGARAMOHAWKPOWERCORPORATION/300 ERIEBOULEVARD WEST,SYRACUSE.
N.Y.13202/TELEPHONE (315)4741511June23,1986NMPlL0071DirectorofNuclearReactorRegulation Attention:
Mr.JohnA.Zwolinski, ProjectDirectorBWRProjectDirectorate Number1DivisionofBWRLicensing U.S.NuclearRegulatory Commission Washington, D.C.20555Re:NineMilePointUnit1DocketNo.50-220DPR-63


==DearMr.Zwolinski:==
==DearMr.Zwolinski:==
NiagaraMohawkPowerCorporationherebysubmitsone(1)signedoriginalandtwelve(12)copiesofRevision4totheNineMilePointNuclearStationUnit1FinalSafetyAnalysisReport(Updated).Thisrevisionsuppliesinformationonareplacementpagebasis,asindicatedonTablel.Averticalbarindicateschanges.Verticalbarswerenotplacednexttofigurechanges;figurechangesareindicatedbyrevisionnumbers.Inaddition,Table2(attached)listsmodificationsmadeinaccordancewithlOCFR50.59sincethelastsubmittaloftheFinalSafetyAnalysisReport(Updated)onJune27,1985.ModificationscompletedpriortoJanuary1,1986werereviewedand,ifapplicable,incorporatedintotheFinalSafetyAnalysisReport(Updated).Sincerely,NIAGARAMOHAWKPOWERCORPORATIONC.V.MangaSeniorVicePresidentDPC:bdAttachmentsxc:Mr.JayDunklebergerDivisionofPolicyAnalysisandPlanningNewYorkStateEnergyOfficeAgencyBuilding2EmpireStatePlazaAlbany,NY122238606270268860b23PDRADQCY05000220KPDR T~p UNITEDSTATESNUCLEARREGULATORYCOMMISSION~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~)))IntheMatterof)NiagaraMohawkPowerCorporation)(NineMilePointUnit1)))))DocketNo.50-220AFFIDAVIT'.V.Mangan,'eingdulysworn,'eposesandsays:IamSeniorVicePresidentofNiagaraMohawkPowerCorporation,'ulyauthorizedtoactontheCorporation'sbehalf;assuch,Ihavereadthedocumentsattachedheretoandfindthatthestatementsmadethereinaretruetothebestofmyknowledge,informationandbelief.C.V.ManganSeniorVicePresidentNiagaraMohawkPowerCorporationSubscribed,acknowledgedandsworntobeforemeonthis~5dayofJune,1986.QuahnNotaryPu~cgggNNEAUST!NY&
 
ItGI.'.~~>:,>j'~84,F)@a~~<>~4%~3fj~~(
NiagaraMohawkPowerCorporation herebysubmitsone(1)signedoriginalandtwelve(12)copiesofRevision4totheNineMilePointNuclearStationUnit1FinalSafetyAnalysisReport(Updated).
ttNIAGARAMOHAWKPOWERCORPORATIONNINEMILEPOINTUNIT1Table2-ModificationsImplementedUnder10CFR50.59NotPreviouslySubmittedtotheNuclearRegulatoryCommission*Mod.NumberModificationDescrition78-0478-2180-9081-2781-3682-03InstallnitrogensupplyvalveinTrain11ofthecontainmentatmospheredilutionsystemAddweldingoutletsonelevation198ofReactorBuildingModifyturbinegeneratorsequentialtripcircuitbyadding"motoring"relaystoprovideoverspeedprotectionbyverifyingthatallsteamsourcesareclosedoffbeforeopeningturbine-generatorbreakers.Replacebreathingairservicewatercompressor'Y'trainerswithduplexstrainersInstallmanual(normallylocked-open)isolationvalveinnitrogensupplylinetocontainmentatmosphericdilutionsystemformaintenance.Changedetectzones(D-11148DA-1114)H2sealoilfromClassAtoClassB.Ref.NRC'sSERtoAmendment30.Ir82-33ModifyturbinethrustbearingweardetectorsperGEtechnicalinformationletter.82-5782-69-182-69-3InstallReactorBuildingsprinklersystemdraintanklevelswitchcolumnisolationval-veandtestingtee.Providelevelswitchprobeclearanceandvalveteeassemblyforcalibration.Upgradethefeedwaterlowflowcontrolduringstartup,shutdownandhotstandbytoresolveNUREG-0619feedwaternozzlecracking(thermalcycles)concerns.Alsomodifiedthemotordrivenfeedwaterrecirculationsystem.Installredundanthighpressurecoolantinjectioninitiationcircuitsforreliability.*Whilesomemodificationsmayhavebeenperformedearlier,inclusionindicatescloseoutoftheentiremodificationpackage.
Thisrevisionsuppliesinformation onareplacement pagebasis,asindicated onTablel.Averticalbarindicates changes.Verticalbarswerenotplacednexttofigurechanges;figurechangesareindicated byrevisionnumbers.Inaddition, Table2(attached) listsmodifications madeinaccordance withlOCFR50.59 sincethelastsubmittal oftheFinalSafetyAnalysisReport(Updated) onJune27,1985.Modifications completed priortoJanuary1,1986werereviewedand,ifapplicable, incorporated intotheFinalSafetyAnalysisReport(Updated).
IIlII Page2Mod.NumberModificationDescrition82-80-583-1683-3083-30-2Reviselogiconemergencycondenserventisolationvalvestoincludeconfirmatorylogic.ReplacewastecollectorfilterrecyclepumpwithpumpmadebyGould.(Baseandpipingalsomodified).Originalvendor(Delaval)nolongermanufacturersthispump,whichwasleakingatthecasingflangeandcouldnotberepaired.ReplacedTurbineBuildingclosedloopcoolingheatexchangersll512.Replaceclosedloopcoolingheatexchanger(partof83-30above)83-3583-3683-4683-8184-1984-2984-3184-3584-50Additionofroofalarm(23')andcameraatnorthwestwallofsecurityannex.Additionaldocumentcontrol(NSR)electricaloutletstosupportadditionalofficespaceandequipmentforrecordsstorage,drawingcontrolroomandcomputertechshop.Primecomputer;powerupgrade-add16outlets(RM246-1)toaccommodateadditionalcomputerperipheralsandcommunicationsequipment.UpgradeReactorBuildingfirebarrierwall(NSR)pipingpenetrationsealsto3hourIEEE-634.Cutandrelocatesectionofbreathingairpipesothatpost-LOCAventlinemaybeinstalledatReactorBuildingEl281'.AccurexUpgrade-Toprovidereliableuseofthefuelzonewaterlevelmonitoringsystemhardware/softwaremod'sperGEFDINTCB.Replacethepowercabletothereactorshutdowncoolingsystemreturnlineisolationvalvemotor-operatorandDCvalveboard(outsidethedrywell.)withalargercabletoimproveperformancebyminimizingmotorburnout.Relocate3smokedetectorsindigitalcomputerroom(auxiliarycontrolroom)toavoiddischargefromairsupplydiffuser,perNRCInpsection84-06.ModifytwelveinputriserstoWasteDisposalBuildingSump813tominimizestoppageinfloordrainsandconsequentialcontamination.
Sincerely, NIAGARAMOHAWKPOWERCORPORATION C.V.MangaSeniorVicePresident DPC:bdAttachments xc:Mr.JayDunkleberger DivisionofPolicyAnalysisandPlanningNewYorkStateEnergyOfficeAgencyBuilding2EmpireStatePlazaAlbany,NY122238606270268 860b23PDRADQCY05000220KPDR T~p UNITEDSTATESNUCLEARREGULATORY COMMISSION
Pa Page3Mod.NumberModificationDescrition84-5184-00485-012Screenwashpump;replacewithmechanicalseals.Alsochangedbutterflyvalvetoplugvalve.Replacedieselfirepumpgovernorinletanddischargeandpumpbearingoilsolenoidvalvestoprovidemanualstartcapabilityuponlossofpower.Relocatesupplyvoltagesourceforcleanupsystemisolationvalvesfrompowerboard167to16188171Bandaddthermaloverloadbypassestosatisfyenvironmentalqualifications.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~)))IntheMatterof)NiagaraMohawkPowerCorporation
)(NineMilePointUnit1)))))DocketNo.50-220AFFIDAVIT'.
V.Mangan,'eing dulysworn,'eposes andsays:IamSeniorVicePresident ofNiagaraMohawkPowerCorporation,'uly authorized toactontheCorporation's behalf;assuch,Ihavereadthedocuments attachedheretoandfindthatthestatements madethereinaretruetothebestofmyknowledge, information andbelief.C.V.ManganSeniorVicePresident NiagaraMohawkPowerCorporation Subscribed, acknowledged andsworntobeforemeonthis~5dayofJune,1986.QuahnNotaryPu~cgggNNEAUST!NY&
ItGI.'.~~>:,>j'~84,F)
@a~~<>~4%~3fj~~(
ttNIAGARAMOHAWKPOWERCORPORATION NINEMILEPOINTUNIT1Table2-Modifications Implemented Under10CFR50.59 NotPreviously Submitted totheNuclearRegulatory Commission*
Mod.NumberModification Descrition78-0478-2180-9081-2781-3682-03InstallnitrogensupplyvalveinTrain11ofthecontainment atmosphere dilutionsystemAddweldingoutletsonelevation 198ofReactorBuildingModifyturbinegenerator sequential tripcircuitbyadding"motoring" relaystoprovideoverspeed protection byverifying thatallsteamsourcesareclosedoffbeforeopeningturbine-generator breakers.
Replacebreathing airservicewatercompressor
'Y'trainers withduplexstrainers Installmanual(normally locked-open) isolation valveinnitrogensupplylinetocontainment atmospheric dilutionsystemformaintenance.
Changedetectzones(D-11148DA-1114)H2sealoilfromClassAtoClassB.Ref.NRC'sSERtoAmendment 30.Ir82-33Modifyturbinethrustbearingweardetectors perGEtechnical information letter.82-5782-69-182-69-3InstallReactorBuildingsprinkler systemdraintanklevelswitchcolumnisolation val-veandtestingtee.Providelevelswitchprobeclearance andvalveteeassemblyforcalibration.
Upgradethefeedwater lowflowcontrolduringstartup,shutdownandhotstandbytoresolveNUREG-0619 feedwater nozzlecracking(thermalcycles)concerns.
Alsomodifiedthemotordrivenfeedwater recirculation system.Installredundant highpressurecoolantinjection initiation circuitsforreliability.
*Whilesomemodifications mayhavebeenperformed earlier,inclusion indicatescloseoutoftheentiremodificationpackage.
IIlII Page2Mod.NumberModification Descrition82-80-583-1683-3083-30-2Reviselogiconemergency condenser ventisolation valvestoincludeconfirmatory logic.Replacewastecollector filterrecyclepumpwithpumpmadebyGould.(Baseandpipingalsomodified).
Originalvendor(Delaval) nolongermanufacturers thispump,whichwasleakingatthecasingflangeandcouldnotberepaired.
ReplacedTurbineBuildingclosedloopcoolingheatexchangers ll512.Replaceclosedloopcoolingheatexchanger (partof83-30above)83-3583-3683-4683-8184-1984-2984-3184-3584-50Additionofroofalarm(23')andcameraatnorthwest wallofsecurityannex.Additional documentcontrol(NSR)electrical outletstosupportadditional officespaceandequipment forrecordsstorage,drawingcontrolroomandcomputertechshop.Primecomputer; powerupgrade-add16outlets(RM246-1) toaccommodate additional computerperipherals andcommunications equipment.
UpgradeReactorBuildingfirebarrierwall(NSR)pipingpenetration sealsto3hourIEEE-634.
Cutandrelocatesectionofbreathing airpipesothatpost-LOCA ventlinemaybeinstalled atReactorBuildingEl281'.AccurexUpgrade-Toprovidereliableuseofthefuelzonewaterlevelmonitoring systemhardware/software mod'sperGEFDINTCB.Replacethepowercabletothereactorshutdowncoolingsystemreturnlineisolation valvemotor-operator andDCvalveboard(outsidethedrywell.)
withalargercabletoimproveperformance byminimizing motorburnout.Relocate3smokedetectors indigitalcomputerroom(auxiliary controlroom)toavoiddischarge fromairsupplydiffuser, perNRCInpsection 84-06.ModifytwelveinputriserstoWasteDisposalBuildingSump813tominimizestoppageinfloordrainsandconsequential contamination.
Pa Page3Mod.NumberModification Descrition84-5184-00485-012Screenwashpump;replacewithmechanical seals.Alsochangedbutterfly valvetoplugvalve.Replacedieselfirepumpgovernorinletanddischarge andpumpbearingoilsolenoidvalvestoprovidemanualstartcapability uponlossofpower.Relocatesupplyvoltagesourceforcleanupsystemisolation valvesfrompowerboard 167to16188171Bandaddthermaloverloadbypassestosatisfyenvironmental qualifications.
Ce  
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~0NIAGARAMOHAWKPOWERCORPORATIONNINE,MILEPOINTUNIT1FINALSAFETYANALYSISREPORT(UPDATED)'EVISION4.(1986)Table1CurrentPaeCoversheet,'olumeIXXX1II-25V-29V-.30VI-21VI-47;TableVI-3AVI-50B,TableVI-3BVII-17VII-21VII-23VII-62VIII-4VIII-15VIII-21VIII-68X-32;FigureX-6X-39X-40,FigureX-7X-52X-62XII-19Coversheet,VolumeIIXXX1XV-48XV-54XV-159RelacementPae(s)Coversheet,'olumeIXXX1II-25V-29V-30V-30A(Newpage)VI-21VI-47,TableVI-3AVI-50B,TableVI-3BVII-17VII-21VII-23VII-62VIII-4VIII-15VIII-21VIII-68X-32,FigureX-6X-39X-40,FigureX-7X-52X-62XII-19Coversheet,VolumeIIXXX1XIII-9A(Newpage)XV-48XV-54XV-159 F~eI}}
~0NIAGARAMOHAWKPOWERCORPORATION NINE,MILEPOINTUNIT1FINALSAFETYANALYSISREPORT(UPDATED)
'EVISION4.(1986)Table1CurrentPaeCoversheet,'olume IXXX1II-25V-29V-.30VI-21VI-47;TableVI-3AVI-50B,TableVI-3BVII-17VII-21VII-23VII-62VIII-4VIII-15VIII-21VIII-68X-32;FigureX-6X-39X-40,FigureX-7X-52X-62XII-19Coversheet,VolumeIIXXX1XV-48XV-54XV-159RelacementPae(s)Coversheet,'olume IXXX1II-25V-29V-30V-30A(Newpage)VI-21VI-47,TableVI-3AVI-50B,TableVI-3BVII-17VII-21VII-23VII-62VIII-4VIII-15VIII-21VIII-68X-32,FigureX-6X-39X-40,FigureX-7X-52X-62XII-19Coversheet,VolumeIIXXX1XIII-9A(Newpage)XV-48XV-54XV-159 F~eI}}

Revision as of 23:11, 29 June 2018

Forwards Vols I & Ii to Rev 4 to Updated FSAR for Nine Mile Point Nuclear Station Unit 1,incorporating Mods Completed Prior to 860101
ML17055B913
Person / Time
Site: Nine Mile Point Constellation icon.png
Issue date: 06/23/1986
From: MANGAN C V
NIAGARA MOHAWK POWER CORP.
To: ZWOLINSKI J A
Office of Nuclear Reactor Regulation
Shared Package
ML17055B914 List:
References
NMP1L-0071, NMP1L-71, NUDOCS 8606270268
Download: ML17055B913 (14)


Text

REGULATORY INFQR{'{ATION DISTRIBUTIQNSYSTEM(RIDS)ACCESSION NBR:S60627026S DQC.DATE:86/06/23NOTARIZED:

YESFACIL:50-220NineNilePointNuclearStationsUnitiiNiagaraPoueAUTH.NA{'{EAUTHORAFFILIATION NANQAN,C.V.-NiagaraNohawkPowerCorp.RECIP.NANERECIPIENT AFFILIATION ZWOLINBKli J.A.BWRProJectDirectorate

SUBJECT:

ForwardsValsIZcIItoRev4toupdatedFBARforNineNilePointNuclearStationUniti~incorporating Nodscompleted rito860101'7/gp,gDIBTRIBUDE:A053DCPIESECEIVED:LTRENCLSIZE:TITLE:ORSubmittal:UpdatedFBAR(50.71)DOCKET005000220RECIPlENT IDCODE/NANE BWRADTSBWREICSBBWRPD1LQKELLY.J0BWRRSBCOPIESLTTRENCL02010110RECIPIENT IDCODE/NA{'{E BWREBBWRFQBBWRPD1PDBWRPSBCOPIESLTTRENCL10000INTERNAL:

REQFILE0502NRRROEl'l.LRQN106EXTERNAL:

DNB/DBBLPDRNSIC1111FRANKLINNRCPDR03111TOTALNUii{BEROFCOPIEBREQUIRED:

LTTR20ENCL11 I4).,IIIII't~II4qM'I1' NIAGARAMOHAWKPOWERCORPORATION/300 ERIEBOULEVARD WEST,SYRACUSE.

N.Y.13202/TELEPHONE (315)4741511June23,1986NMPlL0071DirectorofNuclearReactorRegulation Attention:

Mr.JohnA.Zwolinski, ProjectDirectorBWRProjectDirectorate Number1DivisionofBWRLicensing U.S.NuclearRegulatory Commission Washington, D.C.20555Re:NineMilePointUnit1DocketNo.50-220DPR-63

DearMr.Zwolinski:

NiagaraMohawkPowerCorporation herebysubmitsone(1)signedoriginalandtwelve(12)copiesofRevision4totheNineMilePointNuclearStationUnit1FinalSafetyAnalysisReport(Updated).

Thisrevisionsuppliesinformation onareplacement pagebasis,asindicated onTablel.Averticalbarindicates changes.Verticalbarswerenotplacednexttofigurechanges;figurechangesareindicated byrevisionnumbers.Inaddition, Table2(attached) listsmodifications madeinaccordance withlOCFR50.59 sincethelastsubmittal oftheFinalSafetyAnalysisReport(Updated) onJune27,1985.Modifications completed priortoJanuary1,1986werereviewedand,ifapplicable, incorporated intotheFinalSafetyAnalysisReport(Updated).

Sincerely, NIAGARAMOHAWKPOWERCORPORATION C.V.MangaSeniorVicePresident DPC:bdAttachments xc:Mr.JayDunkleberger DivisionofPolicyAnalysisandPlanningNewYorkStateEnergyOfficeAgencyBuilding2EmpireStatePlazaAlbany,NY122238606270268 860b23PDRADQCY05000220KPDR T~p UNITEDSTATESNUCLEARREGULATORY COMMISSION

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~)))IntheMatterof)NiagaraMohawkPowerCorporation

)(NineMilePointUnit1)))))DocketNo.50-220AFFIDAVIT'.

V.Mangan,'eing dulysworn,'eposes andsays:IamSeniorVicePresident ofNiagaraMohawkPowerCorporation,'uly authorized toactontheCorporation's behalf;assuch,Ihavereadthedocuments attachedheretoandfindthatthestatements madethereinaretruetothebestofmyknowledge, information andbelief.C.V.ManganSeniorVicePresident NiagaraMohawkPowerCorporation Subscribed, acknowledged andsworntobeforemeonthis~5dayofJune,1986.QuahnNotaryPu~cgggNNEAUST!NY&

ItGI.'.~~>:,>j'~84,F)

@a~~<>~4%~3fj~~(

ttNIAGARAMOHAWKPOWERCORPORATION NINEMILEPOINTUNIT1Table2-Modifications Implemented Under10CFR50.59 NotPreviously Submitted totheNuclearRegulatory Commission*

Mod.NumberModification Descrition78-0478-2180-9081-2781-3682-03InstallnitrogensupplyvalveinTrain11ofthecontainment atmosphere dilutionsystemAddweldingoutletsonelevation 198ofReactorBuildingModifyturbinegenerator sequential tripcircuitbyadding"motoring" relaystoprovideoverspeed protection byverifying thatallsteamsourcesareclosedoffbeforeopeningturbine-generator breakers.

Replacebreathing airservicewatercompressor

'Y'trainers withduplexstrainers Installmanual(normally locked-open) isolation valveinnitrogensupplylinetocontainment atmospheric dilutionsystemformaintenance.

Changedetectzones(D-11148DA-1114)H2sealoilfromClassAtoClassB.Ref.NRC'sSERtoAmendment 30.Ir82-33Modifyturbinethrustbearingweardetectors perGEtechnical information letter.82-5782-69-182-69-3InstallReactorBuildingsprinkler systemdraintanklevelswitchcolumnisolation val-veandtestingtee.Providelevelswitchprobeclearance andvalveteeassemblyforcalibration.

Upgradethefeedwater lowflowcontrolduringstartup,shutdownandhotstandbytoresolveNUREG-0619 feedwater nozzlecracking(thermalcycles)concerns.

Alsomodifiedthemotordrivenfeedwater recirculation system.Installredundant highpressurecoolantinjection initiation circuitsforreliability.

  • Whilesomemodifications mayhavebeenperformed earlier,inclusion indicatescloseoutoftheentiremodificationpackage.

IIlII Page2Mod.NumberModification Descrition82-80-583-1683-3083-30-2Reviselogiconemergency condenser ventisolation valvestoincludeconfirmatory logic.Replacewastecollector filterrecyclepumpwithpumpmadebyGould.(Baseandpipingalsomodified).

Originalvendor(Delaval) nolongermanufacturers thispump,whichwasleakingatthecasingflangeandcouldnotberepaired.

ReplacedTurbineBuildingclosedloopcoolingheatexchangers ll512.Replaceclosedloopcoolingheatexchanger (partof83-30above)83-3583-3683-4683-8184-1984-2984-3184-3584-50Additionofroofalarm(23')andcameraatnorthwest wallofsecurityannex.Additional documentcontrol(NSR)electrical outletstosupportadditional officespaceandequipment forrecordsstorage,drawingcontrolroomandcomputertechshop.Primecomputer; powerupgrade-add16outlets(RM246-1) toaccommodate additional computerperipherals andcommunications equipment.

UpgradeReactorBuildingfirebarrierwall(NSR)pipingpenetration sealsto3hourIEEE-634.

Cutandrelocatesectionofbreathing airpipesothatpost-LOCA ventlinemaybeinstalled atReactorBuildingEl281'.AccurexUpgrade-Toprovidereliableuseofthefuelzonewaterlevelmonitoring systemhardware/software mod'sperGEFDINTCB.Replacethepowercabletothereactorshutdowncoolingsystemreturnlineisolation valvemotor-operator andDCvalveboard(outsidethedrywell.)

withalargercabletoimproveperformance byminimizing motorburnout.Relocate3smokedetectors indigitalcomputerroom(auxiliary controlroom)toavoiddischarge fromairsupplydiffuser, perNRCInpsection 84-06.ModifytwelveinputriserstoWasteDisposalBuildingSump813tominimizestoppageinfloordrainsandconsequential contamination.

Pa Page3Mod.NumberModification Descrition84-5184-00485-012Screenwashpump;replacewithmechanical seals.Alsochangedbutterfly valvetoplugvalve.Replacedieselfirepumpgovernorinletanddischarge andpumpbearingoilsolenoidvalvestoprovidemanualstartcapability uponlossofpower.Relocatesupplyvoltagesourceforcleanupsystemisolation valvesfrompowerboard 167to16188171Bandaddthermaloverloadbypassestosatisfyenvironmental qualifications.

Ce

~0NIAGARAMOHAWKPOWERCORPORATION NINE,MILEPOINTUNIT1FINALSAFETYANALYSISREPORT(UPDATED)

'EVISION4.(1986)Table1CurrentPaeCoversheet,'olume IXXX1II-25V-29V-.30VI-21VI-47;TableVI-3AVI-50B,TableVI-3BVII-17VII-21VII-23VII-62VIII-4VIII-15VIII-21VIII-68X-32;FigureX-6X-39X-40,FigureX-7X-52X-62XII-19Coversheet,VolumeIIXXX1XV-48XV-54XV-159RelacementPae(s)Coversheet,'olume IXXX1II-25V-29V-30V-30A(Newpage)VI-21VI-47,TableVI-3AVI-50B,TableVI-3BVII-17VII-21VII-23VII-62VIII-4VIII-15VIII-21VIII-68X-32,FigureX-6X-39X-40,FigureX-7X-52X-62XII-19Coversheet,VolumeIIXXX1XIII-9A(Newpage)XV-48XV-54XV-159 F~eI