ML17262A349

Rev 5 to High Reactor Coolant Activity.

ML17262A349
Person / Time
Site:	Ginna
Issue date:	11/20/1990
From:	WIDAY J A ROCHESTER GAS & ELECTRIC CORP.
To:
Shared Package
ML17262A347	List: ML17262A346 ML17262A348 ML17262A349 ML17262A351 ML17262A352 ML17262A354 ML17262A356
References
AP-RCS.3, NUDOCS 9102070081
Download: ML17262A349 (206)

Text

ECP:AP-RCS.3TITLE:HIGHREACTORCOOLANTACTIVITYREV:5PAGE1of5ROCHESTERGASANDELECTRICCORPORATIONGINNASTATIONCONTROLLEDCOPYNUMBERTECHNICALREVIEWPORCREVIEWDATE40PTSUPERNTNDENT-cgQ-9bEFFECTIVEDATECATEGORY1.0REVIEWEDBY:9i0207008i9i020ilPDRADDCK050002m<PDR

/PQ'1IIt1~k EOP,:AP-RCS.3HIGHREACTORCOOLANTACTIVITYREV:5PAGE2of5A.PURPOSE-Thisprocedureprovidesguidancenecessarytooperatetheplantwithindicationofhighreactorcoolantactivity.B.ENTRYCONDITIONS/SYMPTOMS1.SYMPTOMS-ThesymptomsofHIGHREACTORCOOLANTACTIVITYare;a.Unexplainedincreaseinletdownlinemonitor,R-9,orb.SamplingindicatesI-131equivalentGREATERTHAN0.2uCi/gm,orc.SamplingindicatesgrossdegassedactivityGREATERTHAN20uCi/gm,ord.Samplingindicatesthattotalspecificactivityexceeds84/E.

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AP-RCS.3TITLE:HIGHREACTORCOOLANTACTIVITYREV5PAGE3of5STEPACTION/BXPECTEDRESPONSERESPONSENOTOBTAINED*****************************************CAUTIONIFLETDOWNPLOWEXCEEDS60GPMWHENUSINGAOV-202,D/PACROSSTHECVCSDBMINERALIZERSSHOULDBEMONITOREDTOVERIPYTHATFLOWISCONTINUINGTHROUGHTHEDI'S.HOWEVER,FLOWTHROUGHTHEDI'SSHOULDNOTEXCEED90GPM.1VerifyRCSActivity:a.DirectHP-TOSAMPLERCSFORACTIVITYb.RCSactivity-GREATERTHANNORMAL(CheckwithHPDepartmentfornormalactivity)b.IPnormalactivityverified,THENdirectI8CtocheckoperabilityofR-9,letdownlinemonitor,ANDreturntonormaloperations.2IncreaseLetdownFlowTo60GPMa.VerifydeboratingDIi'solated-DIVERTVLVCATIONDEBORDIAOV-244INBYPASSPOSITIONb.PlacePCV-135tomanualANDad)ustasnecessary-TOCONTROLLETDOWNPRESSUREa.PlaceAOV-244inbypassposition.c.Changeorifices-CLOSE40GPMORIPICEANDOPEN60GPMLTDNORIFICEAOV-202IMMBDIATELYd.Ad)ustletdownpressure-TOAPPROXIMATELY250PSIGe.ReturnPCV-135-TOAUTO,IFDBSIRBD

+44t,(,~Vaa EOP.:AP-RCS.3LITLE:HIGHREACTORCOOLANTACTIVITYREV'PAGE4of5STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINEDNOTE:Referto0-9.3,NRCIMMEDIATENOTIFICATION,forreportingrequirements.3CheckAreaMonitorR9LetdownLine-LESSTHAN200MR/HRABOVEBACKGROUNDRefertoEPIP1-0,GINNASTATIONEVENTEVALUATIONANDCLASSIFICATION.*****************************************CAUTIONWHENANEWDIISVALVEDIN,THEREMAYBEAPLUSORMINUSREACTIVITYADDITIONDUETOABORONCHANGE.(REFERTOS-3.2BTOPREVENTAREACTIVITYCHANGE.)4VerifyProperOperationOfLetdownDI-DECONTAMINATIONFACTORGREATERTHAN10IFDIefficiencyisNOTacceptable,THENplaceanewmixedbedinservice.(RefertoS-4.5.7A,ALETDOWNMIXEDBEDDIRESINREPLACEMENT,ORS-4.5.7B,BLETDOWNMIXEDBEDDIRESINREPLACEMENT).5.CheckSamplingRequirementsREFERTOTECHNICALSPECIFICATIONTABLE4.1-46CheckIfContinuedPlantPowerOperationAllowed:oContinuedplantpoweroperation-ALLOWED,REFERTOTECHNICALSPECIFICATIONSECTION3.1.4IFshutdownisrequired,THENreferto0-2.1,NORMALSHUTDOWNTOHOTSHUTDOWN.

8lk'V$it EOP:AP-RCS.3HIGHREACTORCOOLANTACTIVITYREV:5PAGE5of5STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED7CheckAuxBldgForIncreasedRadiationLevels:a.NotifyHPDepartment-TOSURVEYAUXBLDGb.AuxBldgradiationlevels-NORMAL(CheckwithHPfornormalreadings)b.IFAuxBldgradiationlevelsindicateabovenormal,THENhaveHPDepartmentestablishcontrolsforthehigherradiationareas.8Complete-NOTIFICATIONTOHIGHERSUPERVISIONANDTHEREACTORENGINEER9CheckConditionsForOffsiteReporting:oReferto-EPIP1-0,GINNASTATIONEVENTEVALUATIONANDCLASSIFICATION-END-I~8h0P4h EOP:ES-0'NATURALCIRCULATIONCOOLDOWNREV:5PAGE1of17ROCHESTERGASANDELECTRICCORPORATIONGINNASTATIONCONTROLLEDCOPYNUMBERTECHNICALREVIEWPORCREVIEWDATE4P/7~PLANTSUPERINTENDENT4-/1-5'8EFFECTIVEDATECATEGORY1.0REVIEWEDBY:

ES-0.2T!TLENATURALCIRCULATIONCOOLDOWNREV:5PAGE2of17A.PURPOSE-ThisprocedureprovidesactionstoperformanaturalcirculationRCScooldownanddepressurizationtocoldshutdown,withnoaccidentinprogress,underrequirementsthatwillprecludeanyupperheadvoidformation.B.SYMPTOMSANDORENTRYCONDITIONSThisprocedureisenteredfrom:1)ES-0.1,REACTORTRIPRESPONSE,whenithasbeendeterminedthatanaturalcirculationcooldownisrequired.2)ECA-0',LOSSOFALLACPOWERRECOVERYWITHOUTSIREQUIRED/whenithasbeendeterminedthatanaturalcirculationcooldownisrequired.3)Othernormaloperatingprocedures'whenanaturalcirculationcooldownisrequired.

'r EOP:ES-0'T1TLE:NATURALCIRCULATIONCOOLDOWNREV:5PAGE3of17STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED*****************************************CAUTIONoIFSIACTUATIONOCCURSDURINGTHISPROCEDURE,E-O,REACTORTRIPORSAFETYINJECTION,SHOULDBEPERFORMED.oIFRCPSEALCOOLINGHADPREVIOUSLYBEENLOST,THENTHEAFFECTEDRCPSHOULDNOTBESTARTEDPRIORTOASTATUSEVALUATION.NOTE:Foldoutpageshouldbeopenandmonitoredperiodically.*1MonitorConditionsForRCPRestart:a.EstablishconditionsforstartinganRCP:oBus11Aor11Benergiz.edoRefertoAttachmentRCPSTARTb.StartoneRCPc.AnyRCP-RUNNINGd.Goto0-2.2,PLANTSHUTDOWNFROMHOTSHUTDOWNTOCOLDCONDITIONa.GotoStep2.c.GotoStep2.

.

EOPsES-0'T!TLE:NATURALCIRCULATIONCOOLDOWNREV:5PAGE4of17STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED2CheckVCTMakeupSystem:a.Verifythefollowing:l)Boricacidflowcontrolvalve-SETFORREQUIREDCSDCONCENTRATION2)RMWmodeselectorswitchinAUTO3)RMWcontrolarmed-REDLIGHTLITb.CheckVCTleveloLevel-GREATERTHAN20$-OR-oLevel-STABLEORINCREASINGb.ManuallyincreaseVCTmakeupflowasfollows:1)EnsureBAtransferpumpsandRMWpumpsrunning.2)PlaceRMW,flowcontrolvalveHCV-illinMANUALandincreaseRNWflow.3)Increaseboricacidflowasnecessary.

EOP:ES-0'NATURALCIRCULATIONCOOLDOWNREV'PAGE5of17STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED3CheckChargingPumpSuctionAlignedToVCT:a.CheckVCTlevel:oLevel-GREATERTHAN20%oVCTmakeupsystem-AVAILABLEa.IFVCTlevelcanNOTbemaintainedgreaterthan5%,THENperformthefollowing:1)EnsurechargingpumpsuctionalignedtoRWSToLCV-112BopenoLCV-112Cclosed2)ContinuewithStep4.WHENVCTlevelgreaterthan40$,THENdoStep3b.b.Verifythefollowing:oLCV-112C-OPENoLCV-112B-CLOSEDb.Manuallyalignvalvesasnecessary.4BorateRCSToColdShutdownBoronConcentration(RefertoFigureSDM)5EstablishMaximumRxVesselHeadCooling:oCheckcontrolrodshroudfans(45,kw)-BOTHRUNNINGoCheckoneRxcompartmentcoolingfan(23kw)-RUNNINGStartfansasnecessary.

EOP:ES-0'NATURALCIRCULATIONCOOLDOWNREV:5PAGE6of17STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED6VerifyAdequateShutdownMargina.DirectHPtosampletheRCSforboronconcentration~RCSloopA~RCSloopB~PRZRb.Verifyboronconcentration-GREATER-THANREQUIREMENTSOFFIGURESDMb.Performthefollowing:1)MaintainRCSaveragetemperaturegreaterthan500'FuntiladequateSDMestablished.2)Continuetoborateasnecessary.

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EOP:ES-0.2T]ILE:NATURALCIRCULATIONCOOLDOWNREV:5PAGE7of17STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED*****************************************CAUTIONoIFCSTLEVELDECREASESTOLESSTHAN5FEET,THENALTERNATEWATERSOURCESFORAFWWILLBENECESSARY(REFERTOER-AFW.1)ALTERNATEWATERSUPPLYTOAFWPUMPS).oSIMUSTBEBLOCKEDBEFORES/GPRESSUREDECREASESTO514PSIG.oTHEhTBETWEENPRZRLIQUIDANDTHEHOTLEGTEMPERATURESHOULDNOTBEPERMITTEDTOEXCEED200'F.IFTHISLIMITISEXCEEDED,THENNOTIFYTECHNICALENGINEERINGOFTHEMAXIMUMhTOBSERVED.7InitiateRCSCooldownToColdShutdown:a.Dumpsteamtocondenserb.EstablishandmaintaincooldownrateinRCScoldlegs-LESSTHAN25'F/HRc.MaintainS/GnarrowrangelevelBETWEEN17$AND39%a.ManuallyorlocallydumpsteamusingS/GARVs.c.Controlfeedflowasnecessary.d.PlotRCScoldlegtemperaturesandPRZRtemperaturetwiceperhour(Referto0-2.2,PLANTSHUTDOWNFROMHOTSHUTDOWNTOCOLDSHUTDOWN,forplotpaper)8Check:RCSHotLegTemperatures-LESSTHAN550'FReturntoStep7.

IH-I EOPtES-0.2TlTLE:NATURALCIRCULATIONCOOLDOWNREV:5PAGE8of17STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINEDNOTE:oIfcharginglinetoPRZRvaporhTexceeds320'F,thenplantstaffshouldbeconsultedbeforeusingauxiliaryspray.oWHENusingaPRZRPORV,THENselectonewithanoperableblockvalve.oIfauxiliarysprayisinuse,sprayflowmaybeincreasedbyclosingnormalchargingvalveAOV-294andnormalPRZRsprayvalves.9DepressurizeRCSTo1950PSIG:a.Checkletdown-INSERVICEa.Trytoestablishletdown(RefertoAttachmentLETDOWN).b.DepressurizeRCSusingauxiliarysprayvalve(AOV-296)IFletdowncanNOTbeestablished,THENdepressurizeRCSusingonePRZRPORVandgotoStep10.b.IFauxiliarysprayvalveNOTavailable,THENuseonePRZRPORV.

FOP:ES-0'T!TLE.NATURALCIRCULATIONCOOLDONNREV:5PAGE9of17STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED**************************4'*************CAUTIONSIACTUATIONCIRCUITSWILLAUTOMATICALLYUNBLOCKIFPRZRPRESSUREINCREASESTOGREATERTHAN1992PSIG.******************************************10MonitorSIBlockCriteria:a.Checkthefollowing:oPRZRpressure-LESSTHAN1950PSIGa.ReturntoStep9.-OR-oLOWPRZRPRESSBLOCKSAFINJECstatuslight-LIThb.PlaceSIblockswitchestoBLOCK~TrainA~TrainBc.VerifySAFETYINJECTIONBLOCKEDstatuslight-LITc.MaintainPRZRpressuregreaterthan1750psigandS/Gpressuregreaterthan514psiguntilSIblocked.11DetermineRCSPressureAndTemperatureLimits-.a.Checkcontrolrodshroudfans-BOTHRUNNINGb.MaintainRCSpressure-WITHINLIMITSOFFIGURENATCIRCC/DWITHSHROUDFANSa.Performthefollowing:1)MaintainRCSpressurewithinlimitsofFigureNATCIRCC/DWITHOUTSHROUDFANS.2)GotoStep12.

lO' ES-0.2T1TLE!NATURALCIRCULATIONCOOLDOWNREV5PAGE10of17STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED*12MaintainPRZRLevelBetween204And304*13MonitorRCSCooldown:oCoreexitT/Cs-DECREASINGoRCShotlegtemperatures-DECREASINGoRCSsubcoolingbasedoncoreexitT/Cs-INCREASINGoCooldownrateinRCScoldlegs-LESSTHAN25'F/HR

EOP$ES-0.2TITLE$NATURALCIRCULATIONCOOLDOWNREV:5PAGE11of17STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED*****************************************CAUTIONVOIDINGMAYOCCURINTHERCSDURINGRCSDEPRESSURIZATION.THISWILLRESULTINARAPIDLYINCREASINGPRZRLEVEL.NOTE:oIfatanytimeitisdeterminedthatanaturalcirculationcooldownanddepressurizationmustbeperformedataratethatmayformasteamvoidinthevessel,thenprocedureES-0.3,NATURALCIRCULATIONCOOLDOWNWITHSTEANVOIDINVESSEL,shouldbeused.oIfcharginglinetoPRZRvaporATexceeds320'F,thenplantstaffshouldbeconsultedbeforeusingauxiliaryspray.oWHENusingaPRZRPORV,THENselectonewithanoperableblockvalve.oIfauxiliarysprayisinuse,sprayflowmaybeincreasedbyclosingnormalchargingvalveAOV-294andnormalPRZRsprayvalves,14InitiateRCSDepressurization:a.Checkletdown-INSERVICEb.DepressurizeRCSusingauxiliarysprayvalve(AOV-296)c.Plot:"RCStemperatureandpressureoncurveselectedinStep11hourlya.Trytoestablishletdown(RefertoAttachmentLETDOWN).IFletdowncanNOTbeestablished,THENdepressurizeRCSusingonePRZRPORVandgotoStep15.b.IFauxiliarysprayvalveNOTavailable,THENuseonePRZRPORV.

EOP:ES-0'NATURALCIRCULATIONCOOLDOWNREV:5PAGE12of17STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED15ContinueCooldownAndDepressurization:a.CheckRCScoldlegtemperature-GREATERTHAN335'Fb.MaintaincooldownrateinRCScoldlegs-LESSTHAN25'F/HRc.MaintainRCStemperatureandpressurewithinlimitsofFiguredeterminedpreviouslya.StabilizeRCStemperatureandgotoStep15c.c.ControlRCSpressureasneces'sarytorestorepressure/temperaturerelationshiptowithinlimitsofappropriteFigure.16EstablishRequiredRCSHydrogenConcentration(RefertoS-3.3C,H2OR02REMOVALFROMPRIMARYSYSTEMBYBURPINGVCT)17CheckForSteamVoidInReactorVessel:RepressurizeRCSwithinallowablelimitsandcontinuecooldown.oPRZRlevel-NOUNEXPECTEDLARGEVARIATIONSoRVLISlevel(noRCPs)-GREATERTHAN95%IFRCSdepressurizationmustcontinue,THENgotoES-0.3,NATURALCIRCULATIONCOOLDOWNWITHSTEAMVOIDINVESSEL.

CI,Vlt4l EOPtES-0'NATURALCIRCULATIONCOOLDONNREV:5PAGE13of17STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED18CheckIfSIACCUMsShouldBeIsolated:a.RCSpressure-LESSTHAN1500PSIGb.DispatchAOwithlockedvalvekeytolocallyclosebreakersforSIACCUMdischargevalves~'MOV-841,MCCCposition12F~MOV-865,MCCDposition12Cc.CloseSIACCUMdischargevalves~ACCUMA)MOV-841~ACCUMB,MOV-865a.ContinuewithStep19.WHENRCSpressureislessthan1500psig,THENdoSteps18bthroughd.c.IFanyvalvecanNOTbeclosed,THENperformthefollowing:1)Dispatchpersonneltolocallyclosevalves,asnecessary.2)MaintainRCSpressuregreaterthan1000psiguntilbothSIACCUMsisolated.IFanySIACCUMcanNOTbeisolatedANDRCSdepressurizationtolessthan1000psigisrequired,THEN;1)OpenventvalvesforunisolatedSIACCUMs,~ACCUMA,AOV-834A~ACCUMB,AOV-834Bd.LocallyopenbreakersforMOV-841andMOV-8652)OpenHCV-945.3)MaintainRCSpressuregreaterthanSIACCUMpressure.

EOP:ES-0.2NATURALCIRCULATIONCOOLDOWNREV:5PAGE14of17STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED*19MaintainLetdownFlow:a.Openletdownorificevalvesasnecessaryb.Adjustlowpressureletdowncontrolvalvesetpointasnecessary*20MaintainRequiredRCPSealInjectionFlowAndLabyrinthSealD/P:oLabyrinthsealD/PtoeachRCP-GREATERTHAN15INCHESOFWATERPerformthefollowing:oAdjustchargingflowtoREGENHx(HCV-142)asnecessary.-OR-oSealinjectionflowtoeachRCP-GREATERTHAN6GPMoDispatchAOtoadjustsealinjectionneedlevalvesifnecessary.~RCPA,V-300A~RCPB,V-300B 4

EOP:ES-0'NATURALCIRCULATIONCOOLDOWNREV'PAGE15of17STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED21CheckIfSISystemNormalShutdownAlignmentShouldBeEstablished:a.RCScoldlegtemperature-LESSTHAN350'Fa.ReturntoStep15.b,RCSpressure-LESSTHAN1500PSIGc.LockoutSIsystemasfollows:1)PlaceallSIpumpswitchesinPULLSTOPb.StabilizeRCStemperatureandreturntoStep14.2)LocallyclosebreakersforSI.pumpdischargevalvestocoldlegs~MOV-878B,MCCDposition8C~MOV-878D,MCCDposition8F3)CloseSIpumpdischargetocoldlegs~MOV-878B~MOV-878D4)LocallyopenbreakersforMOV-878BandMOV-878D Pt EOPtES-0.2TITLE:NATURALCIRCULATIONCOOLDOWNREV5PAGE16of17STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED22CheckIfRHRNormalCoolingCanBeEstablished:a.RCSpressure-LESSTHAN400PSIGb.VerifyallSIpumpswitchesinPULLSTOPa.StabilizeRCStemperatureandreturn.toStep14.b.ReturntoStep21.c.SampletheRHRsystemtoensureadequateboronconcentration(RefertoAttachmentRHRSAMPLE)d.PlaceRCSoverpressureprotectionsysteminservice(Referto0-7,ALIGNMENTANDOPERATIONOFTHEREACTORVESSELOVERPRESSUREPROTECTIONSYSTEM)e.EstablishRHRnormalcooling(RefertoAttachmentRHRCOOL)d.IFRCSoverpressureprotectionsystemcanNOTbeplacedinservice,THENconsultPlantstafftodetermineifRHRnormalcoolingshouldbeestablishedandgotoStep23.23ContinueRCSCooldownToCold.Shutdown*****************************************CAUTIONDEPRESSURIZINGTHERCSBEFORETHEENTIRERCSISLESSTHAN200'FMAYRESULTINADDITIONALVOIDFORMATIONINTHERCS.24ContinueCooldownOfInactivePortionOfRCS:a.Coolupperheadregionusingcontrolrodshroudfansb.CoolS/GU-tubesbydumpingsteamfromallS/Gs

EOP:ES-O.'T1TLE:NATURALCIRCULATIONCOOLDOWNREV:5PAGE17of17STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED*****************************************CAUTIONIFLESSTHANTWOCONTROLRODSHROUDFANSARERUNNING,THEUPPERHEADREGIONMAYREMAINABOVE200'FFORUPTO29HOURSAFTERREACHINGCSD.25DetermineIfRCSDepressurizationIsPermitted:a.EntireRCS-LESSTHAN200'F~CoreexitT/Cs~UpperheadT/Cs~RCShotlegtemperature~RCScoldlegtemperatureb.Checkcontrolrodshroudfanstatus-BOTHRUNNINGDURINGCOOLDOWNc.Maintaincoldshutdownconditions(Referto0-2.3,PLANTATCOLDSHUTDOWN)a.DoNOTdepressurizeRCS.ReturntoStep23.b.ConsultPlantstafftodeterminewaitperiodforupperheadcooling.-END-I EOP;ES-0'T1TLENATURALCIRCULATIONCOOLDOWNREV:5PAGE1of1ES-0.2APPENDIXLISTTITLEPAGES1)REDPATHSUMMARY2)FIGUREMINSUBCOOLING3)FIGURESDM4)FIGURENATCIRCC/DWITHOUTSHROUDFANS5)FIGURENATCIRCC/DWITHSHROUDFANS6)ATTACHMENTRCPSTART7)ATTACHMENTLETDOWN8)ATTACHMENTRHRCOOL9)ATTACHMENTRHRSAMPLE10)FOLDOUT

EOP:ES-0'NATURALCIRCULATIONCOOLDOWNREV:5PAGE1of1REDPATHSUMMARYa.SUBCRITICALITY-Nuclearpowergreaterthan5%b.CORECOOLING-CoreexitT/Csgreaterthan1200'F-OR-CoreexitT/Csgreaterthan700'FANDRVLISlevel(noRCPs)lessthan43%[46%adverseCNMT]c.HEATSINK-NarrowrangelevelinallS/Gslessthan5%[25%adverseCNMT]ANDtotalfeedwaterflowlessthan200gpmd.INTEGRITY-Coldlegtemperaturesdecreasegreaterthan100'Finlast60minutesANDRCScoldlegtemperaturelessthan285'Fe.CONTAINMENT-CNMTpressuregreaterthan60psig

EOP!ES-0'TiTLE:NATURALCIRCULATIONCOOLDOWNREV:5PAGE1of1FIGUREMINSUBCOOLINGNOTE:SubcoolingMargin=SaturationTemperatureFromFigureBelow[-]CoreExitT/CIndicationRC25002400230022002100200019001800170016001500OIwoo13001200110010009008007006005004003002001000SPRESSURE(PSIG)RCSPRESSUREINCREMENTS20PSIGSUBCOOLEDREGIONADVERSECNMTNORMALCNMTINADEQUATESUBCOOLINGREGIONTEMPERATUREINCREMENTS10'F200250300350400450500550600650700COREEXITSATURATIONTEMPERATURE('F)

EOP:ES-0.2T!TLE:NATURALCIRCULATIONCOOLDOWNREV5PAGE1of1BORONCONCENTRATION(PPH)1800FIGURESDM1600BORONINCREHENTS20PPH140012001000ADEQUATESDH100PPHCONSERVATISHINCLUDED8OO600400BORATE200BURNUPINCREHENTS100HWD/HTU01000200030004000500060007000800090001000011000CYCLE22BURNUP(HWD/HTU)NOTE:Toobtaincoreburnup,usePPCSturnoncodeBURNUP.

h,A" EOP0ES-0'T!TLE:NATURALCIRCULATIONCOOLDOWNREV:5PAGE1of1RCS2500PRESSURE(PSIG)FIGURENATCIRCCDWITHOUTSHROUDFANS240023002200210020001900180017001600RCSPRESSUREINCREHENTS20PSIGRCStempforS/GSI(514psig)SIUNBLOCKNORHALRANGE150014001300120011001000900800700600500400300200100[2]Wait29hrsbeforedecreasingRCSpressurelessthan350psigtopreventboilinginupperhead[1]Wait11hrsbeforedecreasingRCSpressurelessthan1600psigTEHPERATUREINCREHENTS10'F050100150'200250300350400450500550600650700RCSCOLDLEGTEHPERATURE('F)

EOP:ES-0.2TlTLE:NATURALCIRCULATIONCOOLDOWNREV:5PAGE1ofIRCSPRESSURE(PSIG)2500FIGURENATCIRCCDWITHSHROUDFANS240023002200210020001900180017001600150014001300120011001000900800700600500400300200iooRCSPRESSUREINCREMENTS20PSIGRCStempforS/GSI(514psig)SIUNBLOCKA.V0IDNORMALRANGETEMPERATUREINCREMENTS10'F050100150200250300350400450500550600650700RCSCOLDLEGTEMPERATURE('F)

EOP:ES-0'TlTLE:NATURALCIRCULATIONCOOLDOWNREV:5PAGE1of11~2~FOLDOUTPAGERCTICRTERIAIFBOTHconditionslistedbelowoccur,THENtripbothRCPs:a.SIpumps-ATLEASTTWORUNNINGb.RCSpressureminusmaximumS/Gpressure-LESSTHAN175PSIGSIPUMPAUTOSWITCHOVERCRITERIONWHENBASTleveldecreasesto104,THENensureSIpumpautomaticswitchovertoRWST.3~SIACTUATIONCRITERIAIFEITHERconditionlistedbelowoccurs,THENactuateSIandgotoE-O,REACTORTRIPORSAFETYINJECTION,Step1.oRCSsubcoolingbasedoncoreexitT/Cs-LESSTHANO'FUSINGREQUIREMENTSOFFIGUREMINSUBCOOLINGOR-oPRZRlevel-CHARGINGCANNOTCONTROLLEVELGREATERTHAN54AFWSUPPLYSWITCHOVERCRITERIONIFCSTleveldecreasestolessthan5feet,THENswitchtoalternateAFWwatersupply(RefertoER-AFW.1,ALTERNATEWATERSUPPLYTOAFWPUMPS).

"Sy EOP:ES-1.2TITLE:POSTLOCACOOLDOWNANDDEPRESSURIZATIONREV:10PAGE1of23ROCHESTERGASANDELECTRICCORPORATIONGINNASTATIONCONTROLLEDCOPYNUMBERTECHNICALREVIEWPORCREVIEWDATEPLANTSUPERINTENDENTEFFECTIVEDATECATEGORY1.0.REVIEWEDBY:

P EOP:ES-1.2TITLE:POSTLOCACOOLDOWNANDDEPRESSURIZATIONREV10PAGE2of23A.PURPOSE-ThisprocedureprovidesactionstocooldownanddepressurizetheRCStocoldshutdownconditionsfollowingalossofreactorcoolantinventory.B.ENTRYCONDITIONS/SYMPTOMS1.ENTRYCONDITIONS-Thisprocedureisenteredfrom:E1gLOSSOFREACTORORSECONDARYCOOLANTgwhenRCSpressureisgreaterthantheshutoffheadpressureoftheRHRpumps.

EOP:ES-1s2TITLE:POST.LOCACOOLDOWNANDDEPRESSURIZATIONREV10PAGE3of23STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED*****************************************CAUTIONoIFRWSTLEVELDECREASESTOLESSTHAN28%,THENTHESISYSTEMSHOULDBEALIGNEDFORCOLDLEGRECIRCULATIONUSINGES-1.3,TRANSFERTOCOLDLEGRECIRCULATION,STEPl.oIFPRZRLEVELISLESSTHAN50%ORIFADVERSECNMTCONDITIONSEXIST,THENPRZRHEATERSSHOULDNOTBEENERGIZEDUNTILPRZRLEVELISEVALUATEDBYTHETSC.oRCSPRESSURESHOULDBEMONITORED.IFRCSPRESSUREDECREASESTOLESSTHAN250PSIG[465PSIGADVERSECNMT],THERHRPUMPSMUSTBEMANUALLYRESTARTEDTOSUPPLYWATERTOTHERCS.NOTE:oFoldoutpageshouldbeopenandmonitoredperiodically.1oAdverseCNMTvaluesshouldbeusedwheneverCNMTpressureisgreaterthan4psigorCNMTradiationisgreaterthan10+R/hr.*IMonitorIfRHRPumpsShouldBeStopped:a.CheckRCSpressure:1)Pressure-GREATERTHAN250psig[465psigadverseCNMT]2)Pressure-STABLEORINCREASINGa.GotoStep2.b.StopRHRpumpsandplaceAUTO

EOP:ES-1.2POSTLOCACOOLDOWNANDDEPRESSURIZATIONREV:10PAGE4of23STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED*2MonitorAllACBusses-BUSSESENERGIZEDBYOFFSITEPOWERoNormalfeedbreakerstoall480voltbusses-CLOSEDo480busvoltage-GREATERTHAN420VOLTSoEmergencyD/GoutputbreakersOPENa.IFanyACemergencybusnormalfeedbreakeropen,THENensureassociatedD/Gbreakerclosed.b.Performthefollowing,asnecessary:1)Closenon-safeguardsbustiebreakers:~Bus13toBus14tie~Bus15toBus16tie2)PlacethefollowingpumpsinPULLSTOP'EHpumps~Turninggearoilpump~HPsealoilbackuppump3)RestorepowertoMCCs.~AfromBus13~BfromBus15~EfromBus15~FfromBus154)WHENbus15restored,THENresetcontrol.roomlighting.5)RefertoAttachmentSI/UVforotherequipmentlostwithlossofoffsitepower.c.TrytorestoreoffsitepowertoallACbusses(RefertoER-ELEC.1,RESTORATIONOFOFFSITEPOWER).

EOP:ES-1'POSTLOCACOOLDOWNANDDEPRESSURIZATIONREV10PAGE5of23STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED3Establish75GPMChargingFlaw:a.Chargingpumps-ANYRUNNINGa.Performthefollowing:1)IFCCWflowislosttoanyRCPthermalbarrierORanyRCP¹1sealoutlettemperatureoffscalehigh,THENdispatchAOwithRWSTareakeytolocallyisolatesealinjectiontoaffectedRCP'V-300AforRCPA~V-300BforRCPB2)EnsureHCV-142open,demandat0%.b.AlignchargingpumpsuctiontoRWST'LCV-112B-OPENoLCV-112C-CLOSEDb.IFLCV-112BcanNOTbeopened,THENperformthefollowing:1)VerifychargingpumpANOTrunningandplaceinPULLSTOP.c.Startchargingpumpsasnecessary(75kweach)andestablish75gpmtotalchargingflow2)DispatchAOtolocallyopenmanualchargingpumpsuctionfromRWST(V-358locatedinchargingpumproom).3)WHENV-358open,THENdirectAOtocloseV-268toisolatechargingpumpsBandCfromVCT(V-268locatedinchargingpumproom).~Charginglineflow~Sealinjectionflow

EOP!ES-1.2TITLE!POSTLOCACOOLDOWNANDDEPRESSURIZATIONREV10PAGE6of23STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED4EstablishCondenserSteamDumpPressureControl:a.Verifycondenseravailable:oAnyMSIV-OPENoAnnunciatorG-15,STEAMDUMPARMED-LITa.PlaceS/GARVcontrollersinAUTOatdesiredpressureandgotoStep5.b.Ad)ustcondensersteamdumpcontrollerHC-484todesiredpressureandverifyinAUTOc.PlacesteamdumpmodeselectorswitchtoMANUAL*****************************************CAUTIONIFCSTLEVELDECREASESTOLESSTHAN5FEET,THENALTERNATEWATERSOURCESFORAFWPUMPSWILLBENECESSARY(REFERTOER-AFW.1,ALTERNATEWATERSUPPLYTOAFWPUMPS),NOTE:TDAFWpumpflowcontrolvalvesfailopenonlossofIA.*5MonitorIntactS/GLevels:a.Narrowrangelevel-GREATERTHAN5S[25$adverseCNMT)b.Controlfeedflowtomaintainnarrowrangelevelbetween17%[25%adverseCNMT]and50%a.Maintaintotalfeedflowgreaterthan200gpmuntilnarrowrangelevelgreaterthan5%[25%adverseCNMT]inatleastoneS/G.b.IFnarrowrangelevelinanyS/Gcontinuestoincreaseinanuncontrolledmanner,THENgotoE-3,STEAMGENERATORTUBERUPTURE,Step1.

EOP:ES-1.2POSTLOCACOOLDOWNANDDEPRESSURIZATIONREV10PAGE7of23STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINEDNOTE:ShutdownmarginshouldbemonitoredduringRCScooldown(RefertoFigureSDM).6InitiateRCSCooldownToColdShutdown:a.EstablishandmaintaincooldownrateinRCScoldlegs-LESSTHAN100'F/HRb.UseRHRsystemifinservicec.DumpsteamtocondenserfromintactS/G(s)c.ManuallyorlocallydumpsteamusingintactS/GsARV.7CheckRCSSubcooling'asedOnCoreExitT/Cs-GREATERTHANO'FUSINGFIGUREMINSUBCOOLINGManuallyoperateSIpumpsasnecessaryandgotoStep19.8CheckSIandRHRPumpStatus:oSIpumps-ANYRUNNING-OR-GotoStep15.oRHRpumps-ANYRUNNINGININJECTIONMODE9PlacePRZRHeaterSwitchesInTheFollowingPositions:oPRZR'eatercontrolgroup-PULLSTOP'PRZRheaterbackupgroup-OFF "i

EOP:ES-1.2TLTLE:POSTLOCACOOLDOWNANDDEPRESSURIZATIONREV10PAGE8of23STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED*****************************************CAUTIONVOIDINGMAYOCCURINTHERCSDURINGRCSDEPRESSURIZATION.THISWILLRESULTINARAPIDLYINCREASINGPRZRLEVEL.NOTE:oWHENusingaPRZRPORV,THENselectonewithanoperableblockvalve.oIfauxiliarysprayisinuse,sprayflowmaybeincreasedbyclosingnormalchargingvalveAOV-294andnormalPRZRsprayvalves.10DepressurizeRCSToRefillPRZR:a.DepressurizeusingnormalPRZRsprayifavailablea.DepressurizeusingonePRZRPORV.IFIANOTavailable,THENrefertoAttachmentN2PORVS.b.PRZRlevel-GREATERTHAN13%[40$adverseCNMT]c.StopRCSdepressurizationIFnoPORVavailable,THENuseauxiliarysprayvalve(AOV-296).b.ContinuewithStepll.WHENlevelgreaterthan13%[40$adverseCNMTJ,THENstopRCSdepressurization.

4 EOP:ES-1.2T1TLE:POSTLOCACOOLDOWNANDDEPRESSURIZATIONREV:10PAGE9of23STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED*****************************************CAUTIONIFRCPSEALCOOLINGHADPREVIOUSLYBEENLOST,THENTHEAFFECTEDRCPSHOULDNOTBESTARTEDPRIORTOASTATUSEVALUATION.*****************************************11CheckIfAnRCPShouldBeStarted:a.BothRCPs-STOPPEDb.RCSsubcoolingbasedoncoreexitT/Cs-GREATERTHANO'USINGFIGUREMINSUBCOOLINGa.Stopallbut'oneRCPandgotoStep12.b.GotoStep19,c.PRZRlevel-GREATERTHAN13%[40$adverseCNMT]c.ReturntoStep10.d.TrytostartanRCP1)EstablishconditionsforstartinganRCPoBus11Aor11BenergizedoRefertoAttachmentRCPSTARTd.IFIAtoCNMTavailable,THENensureatleastonecontrolrodshroudfanrunning(45kweach).2)StartoneRCP II EOP:ES-1.2POSTLOCACOOLDOWNANDDEPRESSURIZATIONREV:10PAGE10of23STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED12CheckIfOneOfThreeSIPumpsShouldBeStopped:a.ThreeSIpumps-RUNNINGb.RCSsubcoolingbasedoncoreexitT/Cs-GREATERTHAN35'F[90'FadverseCNMT]USINGFIGUREMINSUBCOOLINGc.CheckPRZRlevel-GREATERTHAN13%[40%adverseCNMT]d.StoponeSIpumpa.GotoStep13.b.IFRCShotlegtemperaturesgreaterthan325'F[270'FadverseCNMT]ORIFRHRnormalcoolinginservice,THENgotoStep19.IFRHRnormalcoolingNOTinserviceANDRCShotlegtemperatureslessthan325'F[270'FadverseCNMT],THENensureatleastoneRHRpumprunningininjectionmodeandgotoStep12c.IFnoRHRpumpcanbeoperatedininjectionmode,THENgotoStep19.c.DoNOTstopSIpump.ReturntoStep10.

EOP!ES-1.2TlTLE~POSTLOCACOOLDOWNANDDEPRESSURIZATIONREV10PAGE11of23STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED13CheckIfOneOfTwoSIPumpsShouldBeStopped:a.TwoSIpumps-RUNNINGb.DeterminerequiredRCSsubcoolingfromtable:a.GotoStep14.ChargingPumpAvailabilityNONEONETHREERCSSubcoolingCriteria120'F[200'FadverseCNMT]115'F[190'FadverseCNMT]105'F[180'FadverseCNMT]100'F[175'FadverseCNMT)c.RCSsubcoolingbasedoncoreexitT/Cs-GREATERTHANVALUEFROMTABLEABOVEUSINGFIGUREMINSUBCOOLINGc.IFRCShotlegtemperaturesgreaterthan325'F[270'FadverseCNMT]ORIFRHRnormalcoolinginservice,THENgotoStep19.d.PRZRlevel-GREATERTHAN13%[40%adverseCNMT]e.StoponeSIpumpIFRHRnormalcoolingNOTinserviceANDRCShotlegtemperatureslessthan325'F[270'FadverseCNMT],THENensureatleastoneRHRpumprunningininjectionmodeandgotoStep13d.IFnoRHRpumpcanbeoperatedininjectionmode,THENgotoStep19.d.DoNOTstopSIpump.ReturntoStep10.

1 EOP:ES-1.2TITLEtPOSTLOCACOOLDOWNANDDEPRESSURIZATIONREV'0PAGE12of23STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED14CheckIfLastSIPumpShouldBeStopped:a.OneSIpump-RUNNINGb.DeterminerequiredRCSsubcoolingfromtable:a.'FanyRHRpumprunningininjectionmode,THENgotoStep19.IFNOT,THENgotoStep15.ChargingPumpAvailabilityNONEONETWOTHREERCSSubcoolingCriteriaInsufficientsubcoolingtostopSIpump.255'F[295'FadverseCNMT]235'F[285'FadverseCNMT]210'F[270'FadverseCNMT]c.RCSsubcoolingbasedoncoreexitT/Cs-GREATERTHANVALUEFROMTABLEABOVEUSINGFIGUREMINSUBCOOLINGc.IFRCShotlegtemperaturesgreaterthan325'F[270'FadverseCNMT]ORIFRHRnormalcoolinginservice,THENgotoStep19.IFRHRnormalcoolingNOTinserviceANDRCShotlegtemperatureslessthan325'F[270'FadverseCNMT],THEN,ensureatleastoneRHRpumprunningininjectionmodeandgotoStep14d.IFnoRHRpumpcanbeoperatedininjectionmode,THENgotoStep19.d.PRZRlevel-GREATERTHAN13%[40%adverseCNMT]e.StoprunningSIpumpd.DoNOTstopSIpump.ReturntoStep10.

EOP:ES-1'TITLE$POSTLOCACOOLDOWNANDDEPRESSURIZATIONREV10PAGE13of23STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED15CheckIfChargingFlowShouldBeControlledToMaintainPRZRLevel:a.CheckRHRpumps-RUNNINGININJECTIONMODEb.GotoStep19a.StartchargingpumpandcontrolchargingflowtomaintainPRZRlevelandgotoStep16.*****************************************CAUTIONIFRCPSEALCOOLINGHADPREVIOUSLYBEENLOST,THENTHEAFFECTEDRCPSHOULDNOTBESTARTEDPRIORTOASTATUSEVALUATION.16CheckRCPStatus:a.RCPs-ATLEASTONERUNNINGa.Performthefollowing:1)EstablishconditionsforstartinganRCP:oVerifyBus11Aor11Benergized.oRefertoAttachmentRCPSTART.2)StartoneRCP.IFanRCPcanNOTbestarted,THENverifynaturalcirculation(RefertoAttachmentNC).IFnaturalcirculationNOTverified,THENincreasedumpingsteam.b.StopallbutoneRCP-w EOP:ES-1'POSTLOCACOOLDOWNANDDEPRESSURIZATIONREV:10PAGE14of23STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED*****************************************CAUTIONVOIDINGMAYOCCURINTHERCSDURINGRCSDEPRESSURIZATION.THISWILLRESULTINARAPIDLYINCREASINGPRZRLEVEL.NOTE:oWHENusingaPRZRPORV,THENselectonewithanoperableblockvalve.oIfauxiliarysprayisinuse,sprayflowmaybeincreasedbyclosingnormalchargingvalveAOV-294andnormalPRZRsprayvalves.17DepressurizeRCSToMinimizeRCSSubcooling:a.DepressurizeusingnormalPRZRsprayifavailablea.IFnormalsprayNOTavailable,THENuseonePRZRPORV.IFIANOTavailable,THENrefertoAttachmentN2PORVS.b.EnergizePRZRheatersasnecessaryc.DepressurizeRCSuntilEITHERofthefollowingconditionssatisfied:IFnoPRZRPORVavailable,THENuseauxiliarysprayvalve(AOV-296).oRCSsubcoolingbasedoncoreexitT/Cs-LESSTHAN10'FUSINGFIGUREMINSUBCOOLING-OR-oPRZRlevel-GREATERTHAN.75%[65%adverseCNMT]

EOP:ES-1.2T!TLEPOSTLOCACOOLDOWNANDDEPRESSURIZATIONREV10PAGE15of23STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED18VerifyAdequateShutdownMargina.DirectHPtosampleRCSforboronconcentrationb.Verifyboronconcentration-GREATERTHANREQUIREMENTSOFFIGURESDMb.Borateasnecessary.*19MonitorSIReinitiationCriteria:a.RCSsubcoolingbasedoncoreexitT/Cs-GREATERTHANO'USINGFIGUREMINSUBCOOLINGa.ManuallyoperateSIpumpsasnecessaryandgotoStep20.b,PRZRlevel-GREATERTHAN5%[30%adverseCNMT]b.ManuallyoperateSIpumpsasnecessaryandreturntoStep10.

EOP$ES-1.2.T1TLE$POSTLOCACOOLDOWNANDDEPRESSURIZATIONREV10PAGE16of23STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED20CheckIfSIACCUMsShouldBeIsolated:a.RCSsubcoolingbasedoncoreexitT/Cs-GREATERTHANO'USINGFIGUREMINSUBCOOLINGb.PRZRlevel-GREATERTHAN5%[30%adverseCNMT]c.DispatchAOwithlockedvalvekeytolocallyclosebreakersforSIACCUMdischargevalves~MOV-841,MCCCposition12F~MOV-865,MCCDposition12Cd.CloseSIACCUMdischargevalves~ACCUMA,MOV-841~ACCUMB,MOV-865e.LocallyreopenbreakersforMOV-841andMOV-865a.IFbothRCShotlegtemperatureslessthan400'F,THENgotoStep20c.IFNOT,THENgotoStep21.b.ReturntoStep10.d.VentanyunisolatedACCUMs:1)OpenventvalvesforunisolatedSIACCUMs.~ACCUMA,AOV-834A~ACCUMB,AOV-834B2)OpenHCV-945.

EOP:ES-1.2POSTLOCACOOLDOWNANDDEPRESSURIZATIONREV:10PAGE17of23STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED21CheckIfEmergencyD/GsShouldBeStopped:a.VerifyACemergencybussesenergizedbyoffsitepower:oEmergencyD/GoutputbreakersOPENa.Trytorestoreoffsitepower(RefertoER-ELEC.l,RESTORATIONOFOFFSITEPOWER).oACemergencybusvoltage-GREATERTHAN420VOLTSoACemergencybusnormalfeedbreakers-CLOSEDb.StopanyunloadedemergencyD/Gandplaceinstandby(RefertoAttachmentD/GSTOP)22VerifyAdequateSWFlowToCCWHx:a.VerifyatleasttwoSWpumps-RUNNINGb.VerifyAUXBLDGSWisolationvalves-OPEN~MOV-4615andMOV-4734~MOV-4616andMOV-4735c.VerifyCNMTRECIRCfanannunciatorC-2,HIGHTEMPERATUREALARM-EXTINGUISHEDa.Manuallystartpumpsaspowersupplypermits(258kwperpump).IFlessthantwoSWpumpscanbeoperated,THENgotoStep23.b.EstablishSWtoAUXBLDG(RefertoAttachmentAUXBLDGSW).c.DispatchAOtolocallythrottleflowtoCCWHxtobetween5000gpmand6000gpmtotalflow.

'

EOP:ES-1.2T!TLE0POSTLOCACOOLDOWNANDDEPRESSURIZATIONREV10PAGE18of23STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED23CheckRCPCoolinga.CheckCCWtoRCPsEstablishnormalcoolingtoRCPs(RefertoAttachmentSEALCOOLING).oAnnunciatorA-7,RCPlACCWRETURNHIGHTEMPORLOWFLOWEXTINGUISHEDoAnnunciatorA-15,RCP1BCCWRETURNHIGHTEMPORLOWFLOWEXTINGUISHEDb.CheckRCPsealin)ectionoLabyrinthsealD/Ps-GREATERTHAN15INCHESWATER-OR-oRCPsealinjectionflovtoeachRCP-GREATERTHAN6GPM 3It EOP:ES-1'POSTLOCACOOLDOWNANDDEPRESSURIZATIONREV10PAGE19of23STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED24CheckIfSealReturnFlowShouldBeEstablished:a.VerifyinstrumentbusD-ENERGIZEDb.VerifyRCP¹1sealoutlettemperature-LESSTHAN235'Fc.VerifyRCPsealoutletvalvesOPEN~AOV-270A~AOV-270Ba.RestorepowertoinstrumentbusDfromMCCBorMCCA(maintenancesupply).b.GotoStep25.c.Manuallyopenvalvesasnecessary.d.ResetbothtrainsofXYrelaysforRCPsealreturnisolationvalveMOV-313e.OpenRCPsealreturnisolationvalveMOV-313f.VerifyRCP¹1sealleakoffflow-LESSTHAN5.5GPMg.VerifyRCP¹1sealleakoffflowGREATERTHAN0.25GPMe.Performthefollowing:1)PlaceMOV-313switchtoOPEN,2)DispatchAOwithkeytoRWSTgatetolocallyopenMOV-313.f.IFanyRCPsealleakoffflowgreaterthan5.5gpm,THENperformthefollowing:oClosetheaffectedRCPsealdischargevalve~RCPA,AOV-270A~RCPB,AOV-270BoTriptheaffectedRCPIFbothRCPsealdischargevalvesareshut,THENgotoStep25'.RefertoAP-RCP.l,RCPSEALMALFUNCTION.

EOP:ES-1.2TITLE:POSTLOCACOOLDOWNANDDEPRESSURIZATIONREV10PAGE20of23STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINEDNOTE:AdverseCNMTconditionsorlossofforcedaircoolingmayresultinfailureofNISdetectors.25CheckXfSourceRangeDetectorsShouldBeEnergized:a.SourcerangechannelsDEENERGIZEDa.GotoStep25e.b,Checkintermediaterangeflux-EITHERCHANNELLESSTHAN1010AMPSb.Performthefollowing:1)IFneitherintermediaterangechannelisdecreasing,THENinitiateboration.2)ContinuewithStep26.WHENfluxisLESSTHAN10ampsonanyoperablechannel,THENdoSteps25c,dande.c.Checkthefollowing:oBothintermediaterangechannels-LESSTHAN10AMPSc.ContinuewithStep26.WHENeitherconditionmet,THENdoSteps25dande.-OR-oGreaterthan20minutessincereactortripd.Verifysourcerangedetectors-ENERGIZEDd.ManuallyenergizesourcerangedetectorsbydepressingP-6permissivedefeatpushbuttons(2of2).IFsourcerangescanNOTberestored,THENrefertoER-NIS.l,SRMALFUNCTIONandgotoStep25.e.TransferRk-45recordertoonesourcerangeandoneintermediaterangechannel

EOP$ES-1'TITLE$POSTLOCACOOLDOWNANDDEPRESSURIZATIONREV10PAGE21of23STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED26EstablishNormalShutdown.Alignment:a.Checkcondenser-AVAILABLEa.DispatchAOtoperformAttachmentSD-2.b.Performthefollowing:oOpengeneratordisconnects~1G13A71~9X13A73oPlacevoltageregulatortoOFFoOpenturbinedrainvalvesoRotatereheatersteamsupplycontrollercerntoclosevalvesoPlacereheaterdumpvalveswitchestoHANDoStopallbutonecondensatepumpc.VerifyadequateRxheadcooling:1)CheckIAtoCNMT-AVAILABLE1)GotoStep26d.2)Verifyatleastonecontrolrodshroudfan-RUNNING3)VerifyoneRxcompartmentcoolingfan-RUNNING2)Manuallystartonefanaspowersupplypermits(45kw)3)Performthefollowing:oDispatchAOtoresetUVrelaysatMCCCandMCCD.oManuallystartonefanaspowersupplypermits(23kw)d.VerifyAttachmentSD-1-COMPLETE

EOP:ES-1.2TITLE:POSTLOCACOOLDOWNANDDEPRESSURIZATIONREV:10PAGE22of23STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED27CheckIfRCPsMustBeStopped:a.RCPs-ANYRUNNINGb.Checkthefollowing:oRCP¹1sealD/P-LESSTHAN220PSIDa.GotoStep28.b.GotoStep28.-OR-oRCP¹1sealleakoff-LESSTHAN0.25GPMc.StopaffectedRCP(s)28CheckCondenserSteamDumpAvailable-CONDENSERVACUUMGREATERTHAN20INCHESHGUseintactS/G'ARVforRCStemperaturecontrol.29CheckIfRHRNormalCoolingCanBeEstablished:a.RCScoldlegtemperature-LESSTHAN350'Fa.ReturntoStep1.b.RCSpressure-LESSTHAN400psig[300psigadverseCNMT]c.PlaceRCSoverpressureprotectionsysteminservice(Referto0-7,ALIGNMENTANDOPERATIONOFTHEREACTORVESSELOVERPRESSUREPROTECTIONSYSTEM)d.ConsultTSCtodetermineifRHRnormalcoolingshouldbeestablishedusingAttachmentRHRCOOLb.GotoStep30.

EOP:,ES-1.2T!TLE:POSTLOCACOOLDOWNANDDEPRESSURIZATIONREV10PAGE23of23STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINEDNOTE:ThisprocedureshouldbecontinuedwhileobtainingCNMThydrogensampleinStep30.30CheckCNMTHydrogenConcentration:a.DirectHPtostartCNMThydrogenmonitorsasnecessary)b.Hydrogenconcentration-LESSTHAN0.5%b.ConsultTSCtodetermineifhydrogenrecombinersshouldbeplacedinservice.31CheckCoreExitT/Cs-LESSTHAN200'FReturntoStepl.32EvaluateLongTermPlantStatus:a.Maintaincoldshutdownconditionsb.ConsultTSC-END-

EOPES-1.2T!TLEIPOSTLOCACOOLDOWNANDDEPRESSURIZATIONREV10PAGE1of1ES-1.2APPENDIXLISTTITLE1)REDPATHSUMMARY2)FIGUREMINSUBCOOLING3)FIGURESDM4)ATTACHMENTSEALCOOLING5)ATTACHMENTRCPSTART6)ATTACHMENTNC7)ATTACHMENTD/GSTOP8)ATTACHMENTSD-19)ATTACHMENTSD-210)ATTACHMENTSI/UV11)ATTACHMENTN2PORVS12)ATTACHMENTRHRCOOL13)ATTACHMENTAUXBLDGSW14)FOLDOUTPAGES

EOP:ES-1.2TITLE!POSTLOCACOOLDOWNANDDEPRESSURIZATIONREV:10PAGE1of1REDPATHSUMhG&Ya.SUBCRITICALITY-Nuclearpowergreaterthan5%b.CORECOOLING-CoreexitT/Csgreaterthan1200'F-OR-CoreexitT/Csgreaterthan700'FANDRVLISlevel(noRCPs)lessthan43%[46%adverseCNMT]c.HEATSINK-NarrowrangelevelinallS/Gslessthan5%[25%adverseCNMT]ANDtotalfeedwaterflowlessthan200gpmd.INTEGRITY-Coldlegtemperaturesdecreasegreaterthan100'Finlast60minutesANDRCScoldlegtemperaturelessthan285'Fe.CONTAINMENT-CNMTpressuregreaterthan60psig

EOP:ES-1.2T!TLE:POSTLOCACOOLDOWNANDDEPRESSURIZATIONREV:10PAGE1of1FIGUREMINSUBCOOLINGNOTE:SubcoolingMargin=SaturationTemperatureFromFigureBelow[-]Core.ExitT/CIndicationRC25002400230022002100200019001800170016001500140013001200110010009008007006005004003002001000SPRESSURE(PSIG)RCSPRESSUREINCREMENTS20PSIGSUBCOOLEDREGIONADVERSECNMTNORMALCNMTINADEQUATESUBCOOLINGREGIONTEMPERATUREINCREMENTS10'F200250300350400450500550600650700COREEXITSATURATIONTEMPERATURE('F) 1t EOP:ES-1.2TITLE:POSTLOCACOOLDOWNANDDEPRESSURIZATIONREV10PAGE1of1BORONCONCENTRATION(PPM)1800FIGURESDM1600BORONINCREMENTS20PPM140012001000ADEQUATESDM100PPMCONSERVATISMINCLUDED800600400BORATE200BURNUPINCREMENTS100MWD/MTU01000200030004000500060007000800090001000011000CYCLE22BURNUP(MWD/HTU)NOTE:Toobtaincoreburnup,usePPCSturnoncodeBURNUP.

8 EOP:ES-1.2T!TLE0POSTLOCACOOLDOWNANDDEPRESSURIZATIONREV:10PAGE1of1FOLDOUTPAGE1.SIREINITIATIONCRITERIAIFEITHERconditionlistedbelowoccurs,THENmanuallyoperateSIpumpsasnecessary:oRCSsubcoolingbasedoncoreexitT/Cs-LESSTHANO'FUSINGFIGUREMINSUBCOOLING-OR-oPRZRlevel-CHARGINGCANNOTCONTROLLEVELGREATERTHAN54[304adverseCNMT]2~SITERMINATIONCRITERIAIFALLconditionslistedbelowoccur,THENgotoES-1.1,SITERMINATION,Step1:a.RCSsubcoolingbasedoncoreexitT/Cs-GREATERTHANO'FUSINGFIGUREMINSUBCOOLINGb.Totalfeedflowtointact-S/Gs-GREATERTHAN200GPM-OR-NarrowrangelevelinatleastoneintactS/G-GREATERTHAN54[254adverseCNMT]c.RCSpressure:oGREATERTHAN1625PSIG[1825psigadverseCNMT]oSTABLEORINCREASINGd.PRZRlevel-GREATERTHAN54[304adverseCNMT]3.SECONDARYINTEGRITYCRITERIAIFanyS/GpressureisdecreasinginanuncontrolledmanneroriscompletelydepressurizedANDhasnotbeenisolated,THENgotoE-2,FAULTEDS/GISOLATION,Step1.4.COLLEGCIRCULATIONSWITCHOVERCRITERIONIFRpSTleveldecreasestolessthan284,THENgotoES-1.3,TRANSFERTOCOLDLEGRECIRCULATION,Step1.5.AFWSUPPLYSWITCHOVERCRITERIONIFCSTleveldecreasestolessthan5feet,THENswitchtoalternateAFWwatersupply(RefertoER-AFW.1,ALTERNATEWATERSUPPLYTOAFWPUMPS)~6.E-3TRANSITIONCRITERIAIFanyS/GlevelincreasesinanuncontrolledmanneroranyS/Ghasabnormalradiation,THENgotoE-3,STEAMGENERATORTUBERUPTURE,Step1.

EOPoES-3~1TITLE:POST-SGTRCOOLDOWNUSINGBACKFILLREV:6PAGE1of9ROCHESTERGASANDELECTRICCORPORATIONGINNASTATIONCONTROLLEDCOPYNUMBERTECHNICALREVIEWPORC'EVIEWDATEPLANTSUPERINTENDENTEFFECTIVEDATE'ATEGORY1.0REVIEWEDBY:

ps-ES-3.1POST-SGTRCOOLDOWNUSINGBACKFILLREV6PAGE2of9A.PURPOSE-ThisprocedureprovidesactionstocooldownanddepressurizetheplanttocoldshutdownconditionsfollowingaSGTR.ThisrecoverymethoddepressurizestherupturedS/GbydrainingitthroughtherupturedS/GtubesintotheRCS.B.ENTRYCONDITIONS/SYMPTOMS1.ENTRYCONDITIONS-Thisprocedureisenteredfrom:a.E-3STEAMGENERATORTUBERUPTURE&,ifplantstaffselectsbackfillmethod.b.ES-3.2,POST-SGTRCOOLDOWNUSINGBLOWDOWNgwhenblowdownisnotavailableandplantstaffselectsbackfill.method.

VIil4 EOP:ES-3.1T!TLE0POST-SGTRCOOLDOWNUSINGBACKFILLREV:6PAGE3of9STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED*****************************************CAUTIONINADVERTANTCRITICALITYMAYOCCURFOLLOWINGNATURALCIRCULATIONCOOLDOWNIFTHERCPINTHERUPTUREDLOOPISSTARTEDFIRST.JNOTE:oFOLDOUTpageshouldbeopenANDmonitoredperiodically.oAdverseCNMTvaluesshouldbeusedwheneverCNMTpressureisgreaterthan4psigorCNMTradiationisgreaterthan10+OR/hr.1EnergizePRZRHeatersAsNecessaryToSaturatePRZRWaterAtRupturedS/GPressure.

J~8I EOPES-3.1-TITLE:POST-SGTRCOOLDOWNUSINGBACKFILLREV:6PAGE4of9STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED2CheckIfSIACCUMsShouldBeIsolated:a.Checkthefollowing:oRCSsubcoolingbasedoncoreexitT/Cs-GREATERTHANO'USINGFIGUREMINSUBCOOLINGa.GotoECA-3.1,SGTRWITHLOSSOFREACTORCOOLANT-SUBCOOLEDRECOVERYDESIRED,Step1.oPRZRlevel-GREATERTHAN5S[30%adverseCNMT)b.DispatchAOwithlockedvalvekeytolocallyclosebreakersforSIACCUMdischargevalves~MOV-841,MCCCposition12F~MOV-865,MCCDposition12Cc.CloseSIACCUMoutletvalves~ACCUMA,MOV-841~ACCUMB,MOV-865d.LocallyreopenbreakersforMOV-841andMOV-865c.VentanyunisolatedACCUMs:1)OpenventvalvesforunisolatedSIACCUMs.~ACCUMA,AOV-834A~ACCUMB,AOV-834B2)OpenHCV-945.

It EOP:ES-F1ETlTLE:POST-SGTRCOOLDOWNUSINGBACKFILLREV:6PAGE5of9STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINEDNOTE:LeakagefromrupturedS/GintoRCSwilldiluteRCSboronconcentration.3VerifyAdequateShutdownMargina.DirectHPtosampleRCSandrupturedS/Gforboronconcentrationb.Verifyboronconcentration-GREATERTHANREQUIREMENTSOFFIGURESDMb.Borateasnecessary.*****************************************CAUTIONIFCSTLEVELDECREASESTOLESSTHAN5FEET,THENALTERNATEWATERSOURCESFORAFWPUMPSWILLBENECESSARY(REFERTOER-AFW.1,ALTERNATEWATERSUPPLYTOAFWPUMPS).NOTE:TDAFWpumpflowcontrolvalvesfailopenonlossofIA.*4MonitorIntactS/GLevel:a.Narrowrangelevel-GREATERTHAN5%[25%adverseCNMT]b.Controlfeedflowtomaintainnarrowrangelevelbetween17%[25%adverseCNMT)and50%a.Maintaintotalfeedflowgreaterthan200gpmuntilnarrowrangelevelgreaterthan5%[25%adverseCNMT]intheintactS/G.b.IFnarrowrangelevelintheintactS/Gcontinuestoincreaseinanuncontrolledmanner,THENgotoECA-3.1,SGTRWITHLOSSOFREACTORCOOLANT-SUBCOOLEDRECOVERYDESIRED,Stepl.

S-r EOP:ES-3.1T1TLE!POST-SGTRCOOLDOWNUSINGBACKFILLREV:6PAGE6of9STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINEDNOTE:SincerupturedS/GmaycontinuetodepressurizetolessthantheminimumRCSpressurenecessaryforcontinuedRCPoperation,cooldowntocoldshutdownshouldnotbedelayed.5InitiateRCSCooldownToColdShutdown:a.EstablishandmaintaincooldownrateinRCScoldlegs-LESSTHAN100'F/HRb.UseRHRsystemifinservicec.DumpsteamtocondenserfromintactS/Gc.ManuallyorlocallydumpsteamusingintactS/GARV.IFnointactS/GavailableandRHRsystemNOTinservice,THENperformthefollowing:oUsefaultedS/G.-OR-oGotoECA-3.1,SGTRWITHLOSSOFREACTORCOOLANT-SUBCOOLEDRECOVERYDESIRED,Step1.*6MonitorRupturedS/GNarrowRangeLevel-LEVELGREATERTHAN174[254adverseCNMT]RefillrupturedS/Gto67%[55%adverseCNMT]usingfeedflow.IFeitherofthefollowingconditionsoccurs,THENstopfeedflowtorupturedS/G:oRupturedS/Gpressuredecreasesinanuncontrolledmanner.-OR-oRupturedS/Gpressureincreasesto1020psig.

gl EOP:ES-3'POST-SGTRCOOLDOWNUSINGBACKFILLREV:6PAGE7of9STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED*7ControlRCSMakeupFlowAndLetdownToMaintainPRZRLevel:a.PRZRlevel-GREATERTHAN13%[40%adverseCNMT]b.PRZRlevel-LESSTHAN75%[65%adverseCNMT]a.IncreaseRCSmakeupflowas.necessaryandgotoStep8.b.DecreaseRCSmakeupflowto'ecreaselevelandgotoStep10.NOTE:TheupperheadregionmayvoidduringRCSdepressurizationifRCPsarenotrunning.ThismayresultinarapidlyincreasingPRZRlevel.*8DepressurizeRCSToBackfillFromRupturedS/G:a.DepressurizeusingnormalPRZRspraya.IFletdownisinservice,THENdepressurizeusingauxiliarysprayvalve(AOV-296),IFNOT,THENuseonePRZRPORV.b.MaintainPRZRlevel-BETWEEN13%AND75%[BETWEEN40%AND65%adverseCNMT]c.CheckrupturedS/Glevel-GREATERTHAN5$[25%adverseCNMT]d.EnergizePRZRheatersasnecessarye.MaintainRCSsubcoolingbasedoncoreexitT/Cs-GREATERTHANO'FUSINGFIGUREMINSUBCOOLINGc.StopRCSdepressurization.

EOP:ES-3.1POST-SGTRCOOLDOWNUSINGBACKFILLREV:6PAGE8of9STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED9EstablishRecpxiredRCSHydrogenConcentration(RefertoS-3.3C,H2Or02REMOVALFROMPRIMARYSYSTEMBYBURPINGVCT)10CheckIfRHRNormalCoolingCanBeEstablished:a.RCScoldlegtemperature-LESSTHAN,350'Fb.RCSpressure-LESSTHAN400psig[300psigadverseCNMT]c.PlaceRCSoverpressureprotectionsysteminservice(Referto0-7,ALIGNMENTANDOPERATIONOFTHEREACTORVESSELOVERPRESSUREPROTECTIONSYSTEM)d.EstablishRHRnormalcooling(RefertoAttachmentRHRCOOL)a.GotoStep11.b.GotoStep11,c.IFRCSoverpressureprotectionsystemcanNOTbeplacedinservice,THENnotifyTSCofpotentialTechSpecviolationifRHRsystemisplacedinservice.*ll'onitorRCPOperation:a.RCPs-ANYRUNNINGb.Checkthefolloving:oRCP¹1sealD/P-LESSTHAN220PSIDa.GotoStep12.b.GotoStep12.-OR-oCheckRCPsealleakage-LESSTHAN0.25GPMc.StopaffectedRCP(s)

EOP:ES-3.1POST-SGTRCOOLDOWNUSINGBACKFILLREV:6PAGE9of9STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED12CheckCoreExitT/Cs-LESSTHAN200'FReturntoStep3.13EvaluateLongTermPlantStatus:a.Maintaincoldshutdownconditions(Referto0-2.3,PLANTATCOLDORREFUELINGSHUTDOWN)b.ConsultTSC'END-

EOP:ES-3'POST-SGTRCOOLDOWNUSINGBACKFILLREV',PAGE1of1ES-3.1APPENDIXLISTTITLE1)REDPATHSUMMARY2)FIGUREMINSUBCOOLING3)FIGURESDM4)ATTACHMENTRHRCOOL5)FOLDOUTPAGES Ia,g EOP:ES-3'POST-SGTRCOOLDOWNUSINGBACKFILLREV6PAGE1of1REDPATHSUMMARYa.SUBCRITICALITY-Nuclearpowergreaterthan54b.CORECOOLING-CoreexitT/Csgreaterthan1200'F-OR-'oreexitT/Csgreaterthan700'FANDRVLISlevel(noRCPs)lessthan434[46%adverseCNMT]c.HEATSINK-NarrowrangelevelinallS/Gslessthan54[254adverseCNMT)ANDtotalfeedwaterflowlessthan200gpmd.INTEGRITY-Coldlegtemperaturesdecreasegreaterthan100'Finlast60minutesANDRCScoldlegtemperaturelessthan285'Fe.CONTAINMENT-CNMTpressuregreaterthan60psig I'

EOP:ES-3'POST-SGTRCOOLDOWNUSINGBACKFILLREV:6PAGE1of1FIGUREMINSUBCOOLINGNOTE:SubcoolingMargin=SaturationTemperatureFromFigureBelow[-]CoreExitT/CIndicationRC25002400230022002100200019001800170016001500140013001200110010009008007006005004003002001000SPRESSURE(PSIG)RCSPRESSUREINCREMENTS20PSIGSUBCOOLEDREGIONADVERSECNHTNORMALCNHTINADEQUATESUBCOOLINGREGIONTEMPERATUREINCREMENTS10'F200250300350400450500550600650700COREEXITSATURATIONTEMPERATURE('F) l'~~~tl EOPtES-F1T1TLE:POST-SGTRCOOLDOWNUSINGBACKFILLREV:6PAGE1of1BORONCONCENTRATION(PPH)1800FIGURESDM1600BORONINCREMENTS20PPM140012001000ADEQUATESDH100PPHCONSERVATISMINCLUDED80O600400BORATE200BURNUPINCREMENTS100HWD/MTU01000200030004000500060007000800090001000011000CYCLE22BURNUP(HWD/HTU)NOTE:Toobtaincoreburnup,usePPCSturnoncodeBURNUP.

EOP!ES-3~1TITLE:POST-SGTRCOOLDOWNUSINGBACKFILLREV:6PAGE1of11~SIREINITIATIONCRITERIFOLDOUTPAGE2~IFeitherconditionlistedbelowoccurs,THENoperateSIpumpsmanuallyasnecessaryandgotoECA-3.1,SGTRWITHLOSSOFREACTORCOOLANT-SUBCOOLEDRECOVERYDESIRED,Step1:oRCSsubcoolingbasedoncoreexitT/Cs-LESSTHANO'USINGREQUIREMENTSOFFIGUREMINSUBCOOLING.ORoPRZRlevel-CHARGINGCANNOTCONTROLLEVELGREATERTHAN54[30%adverseCNMT].SECONDARYINTEGRITYCRITERIAIFanyS/GpressureisdecreasinginanuncontrolledmanneroriscompletelydepressurizedANDhasnotbeenisolated,THENgotoE-2,FAULTEDS/GISOLATION,Step1.3.COLDLEGRECIRCULATIONSWITCHOVERCRITERION4~5.IFRWSTleveldecreasestolessthan284,THENgotoES-1.3,TRANSFERTOCOLDLEGRECIRCULATION,Step1.AFWSUPPLYSWITCHOVERCRITERIONIFCSTleveldecreasestolessthan5feet,THENswitchtoalternateAFWwatersupply(RefertoER-AFW.1,ALTERNATEWATERSUPPLYTOAFWPUMPS).MULTIPLESGTUBERUPTURECRITERIAIFanyintactS/GlevelincreasesininanuncontrolledmannerORIFanyintactS/Ghasabnormalradiation,THENgo'tO,.ECA-3'<SGTRWITHLOSSOFREACTORCOOLANT-SUBCOOLEDRECOVERYDESIRED,Step1.

i' EOP:ES-3'POST-SGTRCOOLDOWNUSINGBLOWDOWN'EV:7PAGE1of10ROCHESTERGASANDELECTRICCORPORATIONGINNASTATIONCONTROLLEDCOPYNUMBERTECHNICALREVIEWPORCREVIEWDATELANTSUPERINTENDENT4-i0-9GEFFECTIVEDATECATEGORY1.0REVIEWEDBY:

l~i F.OPES-3.2POST-SGTRCOOLDOWNUSINGBLOWDOWNREV:7PAGE2of10A.PURPOSE-ThisprocedureprovidesactionstocooldownanddepressurizetheplanttocoldshutdownconditionsfollowingaSGTR.ThisrecoverymethoddepressurizestherupturedS/GbydrainingviaS/Gblowdown.B.ENTRYCONDITIONS/SYMPTOMS1.ENTRYCONDITIONS-Thisprocedureisenteredfrom:a.E-3STEAMGENERATORTUBERUPTURE,ifplantstaffselectstheblowdownmethod.

E~as EOPES-3'T1TLE:POST-SGTRCOOLDOWNUSINGBLOWDOWNREV:7PAGE3of10STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINEDNOTE:oFOLDOUTpageshould.beopenANDmonitoredperiodically.oAdverseCNMTvaluesshouldbeusedwheneverCNMTpressureisgreaterthan4psigorCNMTradiationisgreaterthan10+R/hr.1EnergizePRZRHeatersAsNecessaryToSaturatePRZRWaterAtRupturedS/GPressure2CheckIfSIACCUMsShouldBeIsolated:a.Checkthefollowing:oRCSsubcoolingbasedoncoreexitT/Cs-GREATERTHANO'USINGFIGUREMINSUBCOOLINGa.GotoECA-3.1,SGTRWITHLOSSOFREACTORCOOLANT-SUBCOOLEDRECOVERYDESIRED,Step1.oPRZRlevel-GREATERTHAN5%[30%adverseCNMT]b.DispatchAOwithlockedvalvekeytolocallyclosebreakersforSIACCUMdischargevalves~MOV-841,MCCCposition12F~MOV-865,MCCDposition12Cc.CloseSIACCUMoutletvalves~ACCUMA,MOV-841~ACCUMB)MOV-865c.VentanyunisolatedACCUMs:1)OpenventvalvesforunisolatedSIACCUMs.d.LocallyreopenbreakersforMOV-841andMOV-865~ACCUMA,AOV-834A~ACCUMB,AOV-834B2)OpenHCV-945.

%~'Ie~

EOP:ES-3'T1TLE:POST-SGTRCOOLDOWNUSINGBLOWDOWNREV:7PAGE4of10STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINEDNOTE:LeakagefromrupturedS/GintoRCSwilldiluteRCSboronconcentration.3VerifyAdequateShutdownMargina.DirectHPtosampleRCSandrupturedS/Gforboronconcentrationb.Verifyboronconcentration-GREATERTHANREQUIREMENTSOFFIGURESDMb.Borateasnecessary.*****************************************CAUTIONIFCSTLEVELDECREASESTOLESSTHAN5FEET,THENALTERNATEWATERSOURCESFORAFWPUMPSWILLBENECESSARY(REFERTOER-AFW.1,ALTERNATEWATERSUPPLYTOAFWPUMPS).NOTE:TDAFWpumpflowcontrolvalvesfailopenonlossofIA.*4MonitorIntactS/GLevel:a.Narrowrangelevel-GREATERTHAN5%[25%adverseCNMT]b.Controlfeedflowtomaintainnarrow,rangelevelbetween17%[25%,.adverseCNMT]and50%a.Maintaintotalfeedflowgreaterthan200gpmuntilnarrowrangelevelgreaterthan5%[25%adverseCNMT]inintactS/G.b.IFnarrowrangelevelintheintactS/Gcontinuestoincreaseinanuncontrolledmanner,THENgotoECA-3.1,SGTRWITHLOSSOFREACTORCOOLANT-SUBCOOLEDRECOVERYDESIRED,Step1, a4 EOP!ES-3'T!TLK:POST-SGTRCOOLDOWNUSINGBLOWDOWNREV:7PAGE5of10STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINEDNOTE:SincerupturedS/GmaycontinuetodepressurizetolessthantheminimumRCSpressurenecessaryforcontinuedRCPoperation,cooldowntocoldshutdownshouldnotbedelayed.5InitiateRCSCooldownTo350'F:a.EstablishandmaintaincooldownrateinRCScoldlegs-LESSTHAN100'F/HRb.DumpsteamtocondenserfromintactS/Gb.Manuallyorlocallydumpsteam~fromintactS/GusingS/GARV.IFnointactS/Gavailable,THENperformthefollowing:oUsefaultedS/G.-OR-oGotoECA-3.1,SGTRWITHLOSSOFREACTORCOOLANTSUBCOOLEDRECOVERYDESIRED,Stepl.

P0 ES-3~2T1TLE:POST-SGTRCOOLDOWNUSINGBLOWDOWNREV:7PAGE6of10STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED*****************************************CAUTIONRCSANDRUPTUREDS/GPRESSURESMUSTBEMAINTAINEDLESSTHAN1050PSIG.*6ControlRCSPressureAndMakeupFlowToMinimizeRCS-To-SecondaryLeakage:a.Performappropriateaction(s)fromtable:PRZRLEVELRUPTUREDS/GNARROWRANGELEVELINCREASINGDECREASINGOFFSCALEHIGHLESSTHAN13%[40%ADVERSECNMT]oIncreaseRCSmakeupflowoDepressurizeRCSusingStep6b,IncreaseRCSoIncreaseRCSmakeupflowmakeupflowoMaintainRCSandrupturedS/GpressureequalBETWEEN13%[40%ADVERSECNMT]AND50%BETWEEN50%AND75%[65%ADVERSECNMT]GREATERTHAN75%[65%ADVERSECNMT]DepressurizeRCSusingStep6b.oDepressurizeRCSusingStep6b.oDecreaseRCSmakeupflowoDecreaseRCSmakeupflowEnergizePRZRheatersEnergizePRZRheatersEnergizePRZRheatersMaintainRCSandrupturedS/Gpressureequal.MaintainRCSandrupturedS/GpressureequalMaintainRCSandrupturedS/Gpressureequalb.UsenormalPRZRspraytoobtaindesiredresultsforStep6ab.IFletdownisinservice,THENuseauxiliaryspray(AOV-296).IFNOT,THENuseonePRZRPORV.

EOP:ES-3'TITLE:POST-SGTRCOOLDOWNUSINGBLOWDOWNREV:7PAGE7of10STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED7EstablishRequiredRCSHydrogenConcentration(RefertoS-3.3C,H2OR02REMOVALFROMPRIMARYSYSTEMBYBURPINGVCT)8CheckIfRCSCooldownShouldBeStopped:a.RCScoldlegtemperatures-LESSTHAN350'Fa.ReturntoStep3.b.StopRCScooldownc.MaintainRCScoldlegtemperature-LESSTHAN350'F*9MonitorRupturedS/GNarrowRangeLevel-LEVELGREATERTHAN174[254adverseCNMT]RefillrupturedS/Gto67%[55%adverseCNMT]usingfeedflow.IFeitherofthefollowingconditionsoccurs,THENstopfeedflowtorupturedS/G:oRupturedS/Gpressuredecreasesinanuncontrolledmanner.-OR-oRupturedS/Gpressureincreasesto1020psig.NOTE:BlowdownfromrupturedS/GmaybestoppedwhenRHRsystemisplacedinservice.10ConsultTSCToDetermineAppropriateProcedureToEstablishBlowdownFromRupturedS/GIFblowdowncanNOTbeinitiated,THENgotoalternatepost-SGTRcooldownprocedure,ES-3.1,POST-SGTRCOOLDOWNUSINGBACKFILL,Step1,ORES-3.3,POST-SGTRCOOLDOWNUSINGSTEAMDUMP,Step1.

EOPsES-3.2TITLE~POST-SGTRCOOLDOWNUSINGBLOWDOWNREV:7PAGE8of10STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED*11ControlRCSMakeupFlowAndLetdownToMaintainPRZRLevel:a.PRZRlevel-GREATERTHAN13%[40%adverseCNMT]b.PRZRlevel-LESSTHAN75%[65%adverseCNMT]a.IncreaseRCSmakeupflowasnecessaryandgotoStep12.b.DecreasesRCSmakeupflowtodecreaselevelandgotoStep13.NOTE:TheupperheadregionmayvoidduringdepressurizationifRCPsarenotrunning.ThismayresultinarapidlyincreasingPRZRlevel.*12DepressurizeRCSToMinimizeRCS-To-SecondarjjLeakage:a.DepressurizeusingnormalPRZRspraya.IFletdownisinservice,TBENdepressurizeusingauxiliarysprayvalve(AOV-296).IFNOT,THENuseonePRZRPORV~b.EnergizePRZRheatersasnecessaryc.MaintainRCSpressureatrupturedS/Gpressured.MaintainRCSsubcoolingbasedoncoreexitT/Cs-GREATERTHANO'FUSINGFIGUREMINSUBCOOLING

EOP:ES-3'T!TLE:POST-SGTRCOOLDOWNUSINGBLOWDOWNREV:7PAGE9of10STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED*13MonitorRCPOperation:a.RCPs-ANYRUNNINGb.Checkthefollowing:oRCP¹1sealD/P-LESSTHAN220PSIDa.GotoStep14.b.GotoStep14.-OR-oCheckRCPsealleakage-LESSTHAN0.25GPMc.StopaffectedRCP(s)14CheckIfRHRNormalCoolingCanBeEstablished:a.RCScoldlegtemperature-LESSTHAN350'Fa.ReturntoStep9.b.RCSpressure-LESSTHAN400psig[300psigadverseCNMT]c.PlaceRCSoverpressureprotectionsysteminservice(Referto0-7,ALIGNMENTANDOPERATIONOFTHEREACTORVESSELOVERPRESSUREPROTECTIONSYSTEM)d.EstablishRHRnormalcooling(RefertoAttachmentRHRCOOL)b.ReturntoStep9.c.IFRCSoverpressureprotectionsystemcanNOTbeplacedinservice,THENnotifyTSCofpotentialTechSpecviolationifRHRsystemisplacedinservice.

I' EOP:ES-3~2TITLE:POST-SGTRCOOLDOWNUSINGBLOWDOWNREV:7PAGE10of10STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED'I15ContinueRCSCooldownToColdShutdown:a.MaintaincooldownrateinRCScoldlegs-LESSTHAN100'F/HRb.UseRHRSystemc.DumpsteamtocondenserfromintactS/Gc.ManuallyorlocallydumpsteamusingintactS/GARV.IFnointactS/GavailableandRHRsystemNOTinservice,THENperformthefollowing:oUsefaultedS/G.-OR-oGotoECA-3.1,SGTRWITHLOSSOFREACTORCOOIANT-SUBCOOLEDRECOVERYDESIRED,Stepl.16CheckCoreExitT/Cs-LESSTHAN200'FReturntoStep9.17EvaluateLongTermPlantStatus:a.Maintaincoldshutdownconditions-(Referto0-2.3,PLANTATCOLDORREFUELINGSHUTDOWN)b.ConsultTSC-END-I; EOP:ES-3'POST-SGTRCOOLDOWNUSINGBLOWDOWNREV:7PAGE1of1ES-3.2APPENDIXLISTTITLE1)REDPATHSUMMARY2)FIGUREMINSUBCOOLING3)FIGURESDM4)ATTACHMENTRHRCOOL5)FOLDOUTPAGES I.

EOP:ES-3'POST-SGTRCOOLDOWNUSINGBLOWDOWN.REV:7PAGE1of1REDPATHSUMMARYa.SUBCRITICALITY-Nuclearpowergreaterthan54b.CORECOOLING-CoreexitT/Csgreaterthan1200'F-OR-CoreexitT/Csgreaterthan700'FANDRVLISlevel(noRCPs)lessthan434[464adverseCNMT]c.HEATSINK-NarrowrangelevelinallS/Gslessthan54[254adverseCNMT]ANDtotalfeedwaterflowlessthan200gpmd.INTEGRITY-Coldlegtemperaturesdecreasegreaterthan100'Finlast60minutesANDRCScoldlegtemper'aturelessthan285'Fe.CONTAINMENT-CNMTpressuregreaterthan60psig

EOP:ES-3.2TITLE:POST-SGTRCOOLDOWNUSINGBLOWDOWNREV:7PAGE1of1FIGUREMINSUBCOOLINGNOTE:SubcoolingMargin=SaturationTemperatureFro'mFigureBelow[-]CoreExitT/CIndicationRC250024002300220021002000190018001700'1600140013001200110010009008007006005004003002001000SPRESSURE(PSIG)RCSPRESSUREINCREMENTS20PSIGSUBCOOLEDREGIONADVERSEGNATNORNLCNNTINADEQUATESUBCOOLINGREGIONTEMPERATUREINCREMENTS10'F200250300350400450500550600650700COREEXITSATURATIONTEMPERATURE('F)

~I EOP:ES-3.2T1TLE:POST-SGTRCOOLDOWNUSINGBLOWDOWNREV:7PAGE1of1BORONCONCENTRATION(PPH)1800FIGURESDM1600BORONINCREMENTS20PPH140012001000'DEQUATESDH100PPMCONSERVATISMINCLUDEDSOO600400BORATE200BURNUPINCREMENTS100HWD/HTU01000200030004000500060007000800090001000011000CYCLE22BURNUP(HWD/HTU)NOTE:Toobtaincoreburnup,usePPCSturn'ncodeBURNUP.

l' EOP:ES-3'TiTLE:POST-SGTRCOOLDOWNUSINGBLOWDOWNREV:7PAGE1of1FOLDOUTPAGE1~SIREINITIATIONCRITERIAIFeitherconditionlistedbelowoccurs,THENoperateSIpumpsmanuallyasnecessaryandgotoECA-3.1,SGTRWITHLOSSOFREACTORCOOLANT-SUBCOOLEDRECOVERYDESIRED,Step1:oRCSsubcoolingbasedoncoreexitT/Cs-LESSTHANO'USINGREQUIREMENTSOFFIGUREMINSUBCOOLING.OR2~oPRZRlevel-CHARGINGCANNOTCONTROLLEVELGREATERTHAN54[304adverseCNMT].SECONDARYINTEGRITYCRITERIAIFanyS/GpressureisdecreasinginanuncontrolledmanneroriscompletelydepressurizedANDhasnotbeenisolated,THENgotoE-2,FAULTEDS/GISOLATION,Step1.3.COLDLEGRECIRCULATIONSWITCHOVERCRITERION4~5~IFRWSTleveldecreasestolessthan284,THENgotoES-1.3,TRANSFERTOCOLDLEGRECIRCULATION,Step1.AFWSUPPLYSWITCHOVERCRITERIONIFCSTleveldecreasestolessthan5feet,THENswitchtoalternateAFWwatersupply(RefertoER-AFW.1,ALTERNATEWATERSUPPLYTOAFWPUMPS).MULTIPLESGTUBERUPTURECRITERIAIFanyintactS/Glevelincreasesininanuncontrolledmanner~OIFanyintactS/Ghasabnormalradiation,'HENgotoECA-3.1,SGTRWITHLOSSOFREACTORCOOLANT-SUBCOOLEDRECOVERYDESIRED,Step1.

k/~V EOP:ES-3.3T!TLE$POST-SGTRCOOLDOWNUSINGSTEAMDUMPREV:7PAGE1of12ROCHESTERGASANDELECTRICCORPORATIONGINNASTATIONCONTROLLEDCOPYNUMBERTECHNICALREVIEWPORCREVIEWDATEPLANTSUPERINTENDENTEFFECTIVEDATECATEGORY1.0REVIEWEDBY:

EOP:ES-3.3TITLE:POST-SGTRCOOLDOWNUSINGSTEAMDUMPREV:7PAGE2of12A.PURPOSE-ThisprocedureprovidesactionstocooldownanddepressurizetheplanttocoldshutdownconditionsfollowingaSGTR.ThisrecoverymethoddepressurizestherupturedS/Gbydumpingsteam.B.ENTRYCONDITIONS/SYMPTOMS1.ENTRYCONDITIONS-Thisprocedureisenteredfrom:a.E-3STEAMGENERATORTUBERUPTURE,ifplantstaffselectssteamdumpmethod.b~ES3~2gPOSTSGTRCOOLDOWNUSINGBLOWDOWNgwhenblowdownisnotavailableandplantstaffselectssteamdumpmethod.

~4*P~I EOP:ES-3'T!TLE!POST-SGTRCOOLDOWNUSINGSTEAMDUMPREV:7PAGE3of12STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED*****************************************CAUTIONoSTEAMSHOULDNOTBERELEASEDFROMANYRUPTUREDS/GIFWATERMAYEXISTINITSSTEAMLINE.oANOFFSITEDOSEEVALUATIONSHOULDBECOMPLETEDPRIORTOUSINGTHISPROCEDURE.NOTE:oFOLDOUTpageshouldbeopenANDmonitoredperiodically.oAdverseCNMTvalue'sshouldbeusedwheneverCNMTpressureisgreaterthan4psigorCNMTradiationisgreaterthan10+R/hr.1Energy.zePRZRHeatersAsNecessaryToSaturatePRZRWaterAtRupturedS/GPressure

EOP:ES-3.3POST-SGTRCOOLDOWNUSINGSTEAMDUMPREV:7PAGE4of12STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED2CheckIfSIACCUMsShouldBeIsolated:a.Checkthefollowing:oRCSsubcoolingbasedoncoreexitT/Cs-GREATERTHANO'USINGFIGUREMINSUBCOOLINGa.GotoECA-3.1,SGTRWITHLOSSOFREACTORCOOLANT-SUBCOOLEDRECOVERYDESIRED,Stepl.oPRZRlevel-GREATERTHAN5%[30%adverseCNMT]b.DispatchAOwithlockedvalvekeytolocallyclosebreakersforSIACCUMdischargevalves~MOV-841,MCCCposition12F~MOV-865,MCCDposition12Cc.CloseSIACCUMoutletvalves~ACCUMA,MOV-841~ACCUMB,MOV-865d.LocallyreopenbreakersforMOV-841andMOV-865c.VentanyunisolatedACCUMs:1)OpenventvalvesforunisolatedSIACCUMs.~ACCUMA,AOV-834A~ACCUMB,AOV-834B2)OpenHCV-945.

EOP:ES-3'T!TLE:POST-SGTRCOOLDOWNUSINGSTEAMDUMPREV:7PAGE5of12STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINEDNOTE:LeakagefromrupturedS/GintoRCSwilldiluteRCSboronconcentration.=3VerifyAdequateShutdownMargina.DirectHPtosampleRCSandrupturedS/Gforboronconcentrationb.Verifyboronconcentration-GREATERTHANREQUIREMENTSOFFIGURESDMb.Borateasnecessary.****************************************CAUTIONIFCSTLEVELDECREASESTOLESSTHAN5FEET,THENALTERNATEWATERSOURCESFORAFWPUMPSWILLBENECESSARY(REFERTOER-AFW.1,ALTERNATEWATERSUPPLYTOAFWPUMPS).NOTE:TDAFWpumpflowcontrolvalvesfailopenonlossofIA.*4MonitorIntactS/GLevel:a.Narrowrangelevel-GREATERTHAN5%[25%adverseCNMT]b.Controlfeedflowtomaintainnarrowrangelevelbetween17%[25%'dverseCNMT]and50$a.Maintaintotalfeedflowgreaterthan200gpmuntilnarrowrangelevelgreaterthan5%[25%adverseCNMT]inintactS/G.b.IFnarrowrangelevelintheintactS/Gcontinuestoincreaseinanuncontrolledmanner,THENgotoECA-3.1,SGTRWITHLOSSOFREACTORCOOLANT-SUBCOOLEDRECOVERYDESIRED,Stepl.

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EOP:ES-3'POST-SGTRCOOLDOWNUSINGSTEAM'UMPREV:7PAGE6of12STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINEDNOTE:SincerupturedS/GmaycontinuetodepressurizetolessthantheminimumRCSpressurenecessaryforcontinuedRCPoperation,cooldowntocoldshutdownshouldnotbedelayed.5InitiateRCSCooldownTo350'F:a.EstablishandmaintaincooldownrateinRCScoldlegs-LESSTHAN100'F/HRb.DumpsteamtocondenserfromintactS/Gb.ManuallyorlocallydumpsteamfromintactS/GusingS/GARV.IFnointactS/Gavailable,THENperformthefollowing:oUsefaultedS/G.-OR-oGotoECA-3.1,SGTRWITHLOSSOFREACTORCOOLANT-SUBCOOLEDRECOVERYDESIRED,Stepl.

4 EOP$ES-3'ZLTLE$POST-SGTRCOOLDOWNUSINGSTEAMDUMPREV:7PAGE7of12-STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED*****************************************CAUTIONRCSANDRUPTUREDS/GPRESSURESMUSTBEMAINTAINEDLESSTHAN1050PSIG.*6ControlRCSPressureAndMakeupFlowToMinimizeRCS-To-SecondaryLeakage:a.Performappropriateaction(s)fromtable:PRZRLEVELRUPTUREDS/GNARROWRANGELEVELINCREASINGDECREASINGOFFSCALEHIGHLESSTHAN13$[40%ADVERSECNMT]oIncreaseRCSmakeupflowoDepressurizeRCSusingStep6b.IncreaseRCSoIncreaseRCSmakeupflowmakeupflowoMaintainRCSandrupturedS/GpressureequalBETWEEN13%[40%ADVERSECNMT]AND50%BETWEEN50%AND75%[65%ADVERSECNMT]GREATERTHAN75%[65%ADVERSECNMT]DepressurizeRCSusingStep6b.oDepressurizeRCSusingStep6b.oDecreaseRCSmakeupflowoDecreaseRCSmakeupflowEnergizePRZRheatersEnergizePRZRheatersEnergizePRZRheatersMaintainRCSandrupturedS/GpressureequalMaintainRCSandrupturedS/GpressureequalMaintainRCSandrupturedS/Gpressureequalb.UsenormalPRZRspraytoobtaindesiredresultsforStep6ab.IFletdownisinservice,THENuseauxiliaryspray(AOV-296).IFNOT,THENuseonePRERPORV.

1 EOP:ES-3'T!TLE:POST-SGTRCOOLDOWNUSINGSTEAMDUMPREV:7PAGE8of12STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED7EstablishRequiredRCSHydrogenConcentration(RefertoS-3.3C,H2OR02REMOVALFROMPRIMARYSYSTEMBY.BURPINGVCT)8CheckIfRCSCooldownShouldBeStopped:a.RCScoldlegtemperatures-LESSTHAN350'Fa.ReturntoStep3,b.StopRCScooldownc.MaintainRCScoldlegtemperature-LESSTHAN350'F*9MonitorRupturedS/GNarrowRangeLevel-LEVELGREATERTHAN174[254adverseCNMT]RefillrupturedS/Gto67%[55%adverseCNMT]usingfeedflow.IFeitherofthefollowingconditionsoccurs,THENstopfeedflowtorupturedS/G:oRupturedS/Gpressuredecreasesinanuncontrolledmanner.-OR-oRupturedS/Gpressureincreasesto1020psig.

C EOP!ES-3'TITLE!POST-SGTRCOOLDOWNUSINGSTEAMDUMPREV:7PAGE9of12STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED*****************************************CAUTIONRUPTUREDS/GPRESSUREMAYDECREASERAPIDLYWHENSTEAMISRELEASED.NOTE:SteamreleasefromrupturedS/GmaybestoppedwhenRHRSystemisinservice.10InitiateCooldownOfRupturedS/G:a.Verifycondenseravailable:oIntactS/GMSIV-OPENoAnnunciatorG-15,STEAMDUMPARMED-LITa.ManuallyorlocallydumpsteamusingrupturedS/GARVandgotoStep11.b.DispatchAOtolocallyopenrupturedS/GMSIVbypassvalvec.Dumpsteamtocondenserusingsteamdumppressurecontroller*llControlRCSMakeupFlowAndLetdownToMaintainPRZRLevel:a.PRZRlevel-GREATERTHAN13%[40%adverseCNMT]b.PRZR4~level-LESSTHAN75%[65%adverse'CNMT]a.IncreaseRCSmakeupflowasnecessaryandgotoStep12.b.DecreaseRCSmakeupflowtodecreaselevelandgotoStep13.

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EOPES-3'TITLE:POST-SGTRCOOLDOWNUSINGSTEAMDUMPREV:7PAGE10of12STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINEDNOTE:TheupperheadregionmayvoidduringdepressurizationifRCPsarenotrunning.ThismayresultinarapidlyincreasingPRZRlevel.*12DepressurizeRCSToMinimizeRCS-To-SecondaryLeakage:a.DepressurizeusingnormalPRZRsprayassociatedwithrunningRCPa.IFletdownisinservice,THENdepressurizeusingauxiliarysprayvalve(AOV-296).IFNOT,THENuseonePRZRPORV.b,EnergizePRZRheatersasnecessaryc.MaintainRCSpressureatrupturedS/Gpressured.MaintainRCSsubcoolingbasedoncoreexitT/Cs-GREATERTHANO'FUSINGFIGUREMINSUBCOOLING*13MonitorRCPOperation:a.RCPs-ANYRUNNINGb.Checkthefollowing:oRCP¹1sealD/P-LESSTHAN220PSIDa.GotoStep14.b.GotoStep14.-OR-oCheckRCPsealleakage-LESSTHAN0.25GPMc.StopaffectedRCP(s)

EOP:ES-3'T!TLE:POST-SGTRCOOLDOWNUSINGSTEAMDUMPREV:7PAGE11of12STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED14CheckIfRHRNormalCoolingCanBeEstablisheda.RCScoldlegtemperature-LESSTHAN350'Fa.ReturntoStep9.b.RCSpressure-LESSTHAN400psig[300psigadverseCNMTjc.PlaceRCSoverpressureprotectionsysteminservice(Referto0-7,ALIGNMENTANDOPERATIONOFTHEREACTORVESSELOVERPRESSUREPROTECTIONSYSTEM)d.EstablishRHRnormalcooling(RefertoAttachmentRHRCOOL)b.ReturntoStep9.c.IFRCSoverpressureprotectionsystemcanNOTbeplacedinservice,THENnotifyTSCofpotentialTechSpecviolationifRHRsystemisplacedinservice.15ContinueRCSCooldownToColdShutdown:a.Maintainco'oldownrateinRCScoldlegs-LESSTHAN100'F/HRb.UseRHRSystemc.DumpsteamtocondenserfromintactS/Gc.ManuallyorlocallydumpsteamusingintactS/GARVIFnointactS/GavailableandRHRsystemNOTinservice,THENperformthefollowing:oUsefaultedS/G.-OR-oGotoECA-3.1,SGTRWITHLOSSOFREACTORCOOLANTSUBCOOLEDRECOVERYDESIRED,Step1.

ES-3'TLTLE0POST-SGTRCOOLDOWNUSINGSTEAMDUMPREV:7PAGE12of12STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED16CheckCoreExitT/Cs-LESSTHAN200'FReturntoStep9.17EvaluateLongTermPlantStatus:a.Maintaincoldshutdownconditions(Referto0-2.3,PLANTATCOLDORREFUELINGSHUTDOWN)b.ConsultTSC-END-e EOP!ES-3'TITLE!POST-SGTRCOOLDOWNUSINGSTEAMDUMPREV:7PAGE1of1ES-3.3APPENDIXLISTTITLE1)REDPATHSUMMARY2)FIGUREMINSUBCOOLING3)FIGURESDM4)ATTACHMENTRHRCOOL5)FOLDOUTPAGES

ES-3.3POST-SGTRCOOLDOWNUSINGSTEAMDUMPREV:7PAGE1of1REDPATHSUMl6&Ya.SUBCRITICALITY-Nuclearpowergreaterthan54b.CORECOOLING-CoreexitT/Csgreaterthan1200'F-OR-CoreexitT/Csgreaterthan700'FANDRVLISlevel(noRCPs)lessthan434[464adverseCNMT]c.HEATSINK-NarrowrangelevelinallS/Gslessthan54[254adverseCNMT]ANDtotalfeedwaterflowlessthan200gpmd.INTEGRITY-Coldlegtemperaturesdecreasegreaterthan100'Finlast60minutesANDRCScoldlegtemperaturelessthan285'Fe.CONTAINMENT-CNMTpressuregreaterthan60psig Cl EOP:ES-3'T!TLE:POST-SGTRCOOLDOWNUSINGSTEAMDUMPREV:7PAGE1of1FIGUREMINSUBCOOLINGNOTE:SuhcoolingMargin=SaturationTemperatureFromFigureBelow[-]CoreExitT/CIndicationRC25002400230022002100200019001800170016001500140013001200110010009008007006005004003002001000SPRESSURE(PSIG)RCSPRESSUREINCREMENTS20PSIGSUBCOOLEDREGIONADVERSECNMTNORMALCNMTINADEQUATESUBCOOLINGREGIONTEMPERATUREINCREMENTS10'F200250300350400450500550600650700COREEXIT.SATURATIONTEMPERATURE('F)

EOP!ES-3.3POST-SGTRCOOLDOWNUSINGSTEAMDUMPREV:7PAGE1of1BORONCONCENTRATION(PPH)1800FIGURESDM1600BORONINCREMENTS20PPH140012001000ADEQUATESDH100PPHCONSERVATISMINCLUDED800600400BORATE200BURNUPINCREMENTS100HWD/HTU01000200030004000500060007000800090001000011000CYCLE22BURNUP(MWD/HTU)NOTE:Toobtain-coreburnup,usePPCSturnoncodeBURNUP.

EOP:ES-3'TITLE:POST-SGTRCOOLDOWNUSINGSTEAMDUMPREV:7PAGE1of1FOLDOUTPAGE1~2~SIREINITIATIONCRITERIAIFeitherconditionlistedbelowoccurs,THENoperateSIpumpsmanuallyasnecessaryandgotoECA-3.1,SGTRWITHLOSSOFREACTORCOOLANT-SUBCOOLEDRECOVERYDESIRED,Step1:oRCSsubcoolingbasedoncoreexitT/Cs-LESSTHANO'USINGRE{}UIREMENTSOFFIGUREMINSUBCOOLING.ORoPRZRlevel-CHARGINGCANNOTCONTROLLEVELGREATERTHAN5%[30%adverseCNMT].SECONDARYINTEGRITYCRITERIAIFanyS/GpressureisdecreasinginanuncontrolledmanneroriscompletelydepressurizedANDhas.notbeenisolated,THENgotoE-2,FAULTEDS/GISOLATION,Step1.3~COLDLEGRECIRCULATIONSWITCHOVERCRITERION4~5.IFRWSTleveldecreasestolessthan28%,THENgotoES-1.3,TRANSFERTOCOLDLEGRECIRCULATION,Step1.AFWSUPPLYSWITCHOVERCRITERIONIFCSTleveldecreasestolessthan5feet,THENswitchtoalternateAFWwatersupply(RefertoER-AFW.1,ALTERNATEWATERSUPPLYTOAFWPUMPS).MULTIPLESGTUBERUPTURECRITERIAIFanyintactS/Glevelincreasesininanuncontrolledmaniier~OIFanyintactS/Ghasabnormalradiation,THENgo.,to'ECA-3.1,SGTRWITHLOSSOFREACTORCOOLANT-SUBCOOLEDRECOVERYDESIRED,Step1.

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