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{{#Wiki_filter:REGULATORYENFORMATIONDISTRIBUTIONSYSTEM(RIOS)ACCESSIONNBR:8105290360DOC~DATE:81/05/26NOTARIZED:NODOCKETFACILi50315OonaldCCookNuclearPowerPlant>Unit1iIndianaK~>OA>50316DonaldC~Cookhucl.earPowerPlant>Unit2PIndiana8-500031.AUTH'AMEAUTHORAFFILIATIONHUNTERPR~8'ndiana8MichiganElectricCo~RECIP~NAMERECIPIENTAFFILIATIONSUBJFCT:Applicdtionfor~amendtoOL<changingAppAofTechSpecs~DISTRIBUTIONCODE:AOO'ISCOPIESRECEIVED:LTRJ.ENCLSSIZE::.5+T'ITLE.:GeneralDistributionforafterIssuanceofOperatingLicenseRECIPIENTIDCODE/NAME'OTES:ICE:3cooiesallmaterial~Send3copies-'ofal1materialtoICE~W/C4ucl-4l~40~RECIPIENTCOPIESIDCODE/NAMELTTRENCLACTION!VARGAE8~0413.13COPTESLTTRENCL0500031505000316INTERNAL:D/OIRgHUMFACOSIaE..06OELO11RAOASMTBR11221011OIRPDIVOFLICNRCPDR'20A-E4'SR10GFIQ01111101EXTERNAL'CRSNSIC09.05fe1611LPOR0311wlTOTALNUMBER'FCOPIESREQUIREDLTTR''NCL i
{{#Wiki_filter:REGULATORY ENFORMATION DISTRIBUTION SYSTEM(RIOS)ACCESSION NBR:8105290360 DOC~DATE:81/05/26NOTARIZED:
INDIANAIltMICHIGANELECTRICCOMPANYP.O.BOX18BOWLINGGREENSTATIONNEWYORK,N.Y.10004May26,1981AEP:NRC:0372DonaldC.CookNuclearPlantUnitNos.1and2DocketNos.50-315and50-316LicenseNos.DPR-58andDPR-74TECHNICALSPECIFICATIONSCHANGEREQUEST~]g/@a.a.l't'ai',pgtg8U~g~'ibMr.HaroldR.Denton,Director'fficeofNuclearReactorRegulationU.S.NuclearRegulatoryCommissionWashington,D.C.20555
NODOCKETFACILi50315OonaldCCookNuclearPowerPlant>Unit1iIndianaK~>OA>50316DonaldC~Cookhucl.earPowerPlant>Unit2PIndiana8-500031.AUTH'AMEAUTHORAFFILIATION HUNTERPR~8'ndiana8MichiganElectricCo~RECIP~NAMERECIPIENT AFFILIATION SUBJFCT:Applicdtion for~amendtoOL<changing AppAofTechSpecs~DISTRIBUTION CODE:AOO'ISCOPIESRECEIVED:LTR J.ENCLSSIZE::.5+T'ITLE.:GeneralDistributionforafterIssuanceofOperatingLicenseRECIPIENT IDCODE/NAME'OTES:ICE:3 cooiesallmaterial~Send3copies-'of al1materialtoICE~W/C4ucl-4l~40~RECIPIENTCOPIESIDCODE/NAME LTTRENCLACTION!VARGAE8~0413.13COPTESLTTRENCL0500031505000316INTERNAL:
D/OIRgHUM FACOSIaE..06OELO11RAOASMTBR11221011OIRPDIVOFLICNRCPDR'20A-E4'SR10GFIQ01111101EXTERNAL'CRS NSIC09.05fe1611LPOR0311wlTOTALNUMBER'FCOPIESREQUIREDLTTR''NCL i
INDIANAIltMICHIGANELECTRICCOMPANYP.O.BOX18BOWLINGGREENSTATIONNEWYORK,N.Y.10004May26,1981AEP:NRC:0372 DonaldC.CookNuclearPlantUnitNos.1and2DocketNos.50-315and50-316LicenseNos.DPR-58andDPR-74TECHNICAL SPECIFICATIONS CHANGEREQUEST~]g/@a.a.l't'ai',pg tg8U~g~'ibMr.HaroldR.Denton,Director'fficeofNuclearReactorRegulation U.S.NuclearRegulatory Commission Washington, D.C.20555


==DearMr.Denton:==
==DearMr.Denton:==
ThisletteranditsattachmentsrequestchangesinseveraloftheAppendix'A'echnicalSpecificationsfortheDonaldC.CookNuclearPlantUnitNos.1and2.Attachment1isthedescriptionof'hechanges.Attachment2containstherevisedTechnicalSpecificationpages.Anumberofthesechangesareeditorial.Allchangeshavebeenindicatedbyaverticallineontherighthandsideofthepage.WerequestthattheNRCfileandprocessthisTechnicalSpecificationchangepackageasasingleamendment.TheseproposedTechnicalSpecificationshavebeenreviewedandapprovedbythePlantNuclearSafetyCoraIIittee.Theresultofthesereviewsisthattheseproposedrevisionswillnotadverselyaffectthehealthandsafetyofthepublic.ChangeNos.4,5and6'avebeenreviewedbytheAEPSCNuclearSafetyandDesignReviewCommittee(NSDRC).TheNSDRCconcurswiththePlantPNSRCfindings.TheremainingchangeswillbereviewedatthenextmeetingoftheNSDRCscheduledforJune9,1981.
Thisletteranditsattachments requestchangesinseveraloftheAppendix'A'echnical Specifications fortheDonaldC.CookNuclearPlantUnitNos.1and2.Attachment 1isthedescription of'hechanges.Attachment 2containstherevisedTechnical Specification pages.Anumberofthesechangesareeditorial.
Mr.HaroldR.DentonAEP:NRC:0372SeVenproposedTechnicalSpecificationrevisionsarecontainedinthissubmittal;foureditorialinnature.ChangeNos.4and7areconsideredtobeClassIIamendments($1,200feeeach)andchangeNo.6isconsideredtobeaClassII'Iamendment'$4,000.00fee).ClassIduplicatefeesalsoapplyforchangeNos.4,6and7:.Accordingly,attachedisacheckintheamountof$7,600.00forNRCprocessingoftheaforementionedrequests.Verytrulyyours,VicePresidentcc:JohnE.Dolan-ColumbusR.C.CallenG.CharnoffR.M.JurgensenD.V.Shaller-BridgmanRegionIIIResidentInspector9CookPlant-Bridgman ATTACHMENT1TOAEP:NRC:0372TechnicalSecificationChan'eDescri'tions~ChN.1(EC(UnitNo.1-Page3/48-8-Section3.8.2.3.UnderthedefinitionsofthetwoD.C.bustrains,thesecondoneshouldbechangedfromABtoCD.Cch&#xb9;N.E(EC(UnitHo.2-Pages3/48-9and3/48-10;Section4.8.2.3.2dInitem(d),thetablenumberfor-batteryemergency.loadsmustbechangedto4-.8-1A.Thisrevisionisduetothefactthatcurrentlytherearetwotablesnumbered"Table4.8.1".~ChN.1(EC(Unit1;Page1-7;Table1.2'.Unit2;Page1-8,Table1.2InTable1.2ofbothunits,frequencenotationsofthesurveillanceschedulingwillbespecifiedasaspecificnumberofdayswheneverthefrequencyisgreaterthan24hours.Thewords"6months"and"18months"willberevisedtoread"184days"and"549days"respectively.ThisterminologyconformstoASMEboilerandpressurevesselcode,SectionIII.ChaneHo.4Unit1;page3/42-2;Section3.2.1Unit2;Page3/42-2;Section3.2.1Aspresentlywritten,Specification3.2.1requiresthataLicenseeEventReport(LER)besubmittedwhenevertheAxialFluxDifference(AFD)exceedsthetargetAFDbymorethan+5%regardlessofthecumuiattvepenaltydeviation.InSection3.2.1ofthebasesitisclearlystatedthattheuseofcontrolrodscan'beexpected,inthemajorityofinstances,tocausetheactualAFDtodifferfromthetargetAFDbymorethan+55.~cc'h 1~~~~
Allchangeshavebeenindicated byaverticallineontherighthandsideofthepage.WerequestthattheNRCfileandprocessthisTechnical Specification changepackageasasingleamendment.
ItisourunderstandingthattheintentofSpecification3.2.1istore-quireLERsubmittalonlyinthoseinstanceswhenthecumulativepenaltydeviationexceeds,theallowablevaluesspecifiedintheactionstatementofthespecification.However,ourpresent.Specification3.2.1doesnotreflectthisunderstanding.InordertoclarifytherequirementsofthespecificationandtominimizesubmittalofunnecessaryLERs,wearere-questingthataSection3.2.l.dbeaddedtotheexistingAFDspecification.The-revisedTechnicalSpecificationpagesreflectthisproposedchange.Unit2;Page3/4l-ll;Section4.1.2.3Thecentrifugalchargingpumps,when=testedonrecirculationflowduringmodes5and6,,mustdevelopadischargepressure2390psig.The15psipressuredifferencebetweendischargepressuresofthepumpduringModes5and6andduringModes1-4-is-due-toa.difference.in-the'VolumeControlTank(VCT)pressureinthosemodes.ThiswasreflectedintheUnit1TechnicalSpecifications.earlierandisnowbeingrevisedaccordingly,intheUnit2TechnicalSpecification.ChaneNo.5Unit1;Page3/46-35;Section4.6.5.6Unit2;Page3/46-44;Section4.6.5.6TheintentoftheCeqfanmotorcurrentsurveillanceistocheckfordisengageddriveshafts,brokenfanblades,frozenorbadbearings,andothermalfunctionsinthefan-motorsystemwhichwouldcauseasignificantdeviationfromthenormalmotorload.Ourreviewosurveillancetestdataindicatesthattheaveragecurrentobservedduringtestsislessthan56amperesandtherangeofdeviationsundernormalyetvariableoperatingconditions.isslightlygreaterthan10amperes.MearethereforerequestingachangetoSpecification4.6.5.6.btoread:"b.Verifyingthatwiththereturnairfandampersclosed,thefanmotorcurrentis56+10A'1PSwhenthefanspeedis880+20RPM.ThisenvelopewouldboundallnormaloperatingreadingsandensurethattheintentoftheSpecification,todetectaninoperablesystem,ismet."
TheseproposedTechnical Specifications havebeenreviewedandapprovedbythePlantNuclearSafetyCoraIIittee.
ChaneNo.7Unit1;Page3/41-15;Section3.1.2.7.and4.1.2.7Unit2;Page3/41-15;SectionD.1.2.7and4.1.2.7TheTechnicalSpecificationsrequiretherefuelingwaterstoragetankboratedwatersolutiontemperaturebemaintainedat70oForaboveinUnit1and80oForaboveinUnit2,whenitistobeusedasaboratedwatersourceinModes5and6.ThistemperaturecanbeverydifficulttomaintainwhenaddingcoolwatertotheRWSTbyblendingfollowingdrainingofthetankforrefuelingpurposes.Sincethepresentsolutiontemperaturelimitsarederivedfromemergencycorecoolingrequirements,thishightemperaturelimitshouldonlyapplyinModes1,2,3and4whichiscoveredbyTechnicalSpecifications3.1.2.8and3.5.5.Itisthereforerequestedthattheminimumtem-peraturelimitforModes5and6bereturnedtoitsoriginalvalueof35.oF}}
Theresultofthesereviewsisthattheseproposedrevisions willnotadversely affectthehealthandsafetyofthepublic.ChangeNos.4,5and6'avebeenreviewedbytheAEPSCNuclearSafetyandDesignReviewCommittee (NSDRC).TheNSDRCconcurswiththePlantPNSRCfindings.
Theremaining changeswillbereviewedatthenextmeetingoftheNSDRCscheduled forJune9,1981.
Mr.HaroldR.DentonAEP:NRC:0372 SeVenproposedTechnical Specification revisions arecontained inthissubmittal; foureditorial innature.ChangeNos.4and7areconsidered tobeClassIIamendments
($1,200feeeach)andchangeNo.6isconsidered tobeaClassII'Iamendment'$
4,000.00fee).ClassIduplicate feesalsoapplyforchangeNos.4,6and7:.Accordingly, attachedisacheckintheamountof$7,600.00forNRCprocessing oftheaforementioned requests.
Verytrulyyours,VicePresident cc:JohnE.Dolan-ColumbusR.C.CallenG.CharnoffR.M.Jurgensen D.V.Shaller-BridgmanRegionIIIResidentInspector 9CookPlant-Bridgman ATTACHMENT 1TOAEP:NRC:0372 Technical Secification Chan'eDescri'tions
~ChN.1(EC(UnitNo.1-Page3/48-8-Section3.8.2.3.Underthedefinitions ofthetwoD.C.bustrains,thesecondoneshouldbechangedfromABtoCD.Cch&#xb9;N.E(EC(UnitHo.2-Pages3/48-9and3/48-10;Section4.8.2.3.2d Initem(d),thetablenumberfor-battery emergency.
loadsmustbechangedto4-.8-1A.Thisrevisionisduetothefactthatcurrently therearetwotablesnumbered"Table4.8.1".~ChN.1(EC(Unit1;Page1-7;Table1.2'.Unit2;Page1-8,Table1.2InTable1.2ofbothunits,frequence notations ofthesurveillance scheduling willbespecified asaspecificnumberofdayswheneverthefrequency isgreaterthan24hours.Thewords"6months"and"18months"willberevisedtoread"184days"and"549days"respectively.
Thisterminology conformstoASMEboilerandpressurevesselcode,SectionIII.ChaneHo.4Unit1;page3/42-2;Section3.2.1Unit2;Page3/42-2;Section3.2.1Aspresently written,Specification 3.2.1requiresthataLicenseeEventReport(LER)besubmitted whenevertheAxialFluxDifference (AFD)exceedsthetargetAFDbymorethan+5%regardless ofthecumuiattve penaltydeviation.
InSection3.2.1ofthebasesitisclearlystatedthattheuseofcontrolrodscan'beexpected, inthemajorityofinstances, tocausetheactualAFDtodifferfromthetargetAFDbymorethan+55.~cc'h 1~~~~
Itisourunderstanding thattheintentofSpecification 3.2.1istore-quireLERsubmittal onlyinthoseinstances whenthecumulative penaltydeviation exceeds,theallowable valuesspecified intheactionstatement ofthespecification.
However,ourpresent.Specification 3.2.1doesnotreflectthisunderstanding.
Inordertoclarifytherequirements ofthespecification andtominimizesubmittal ofunnecessary LERs,wearere-questingthataSection3.2.l.dbeaddedtotheexistingAFDspecification.
The-revisedTechnical Specification pagesreflectthisproposedchange.Unit2;Page3/4l-ll;Section4.1.2.3Thecentrifugal chargingpumps,when=testedonrecirculation flowduringmodes5and6,,mustdevelopadischarge pressure2390psig.The15psipressuredifference betweendischarge pressures ofthepumpduringModes5and6andduringModes1-4-is-due-to a.difference
.in-the'Volume ControlTank(VCT)pressureinthosemodes.Thiswasreflected intheUnit1Technical Specifications.
earlierandisnowbeingrevisedaccordingly, intheUnit2Technical Specification.
ChaneNo.5Unit1;Page3/46-35;Section4.6.5.6Unit2;Page3/46-44;Section4.6.5.6TheintentoftheCeqfanmotorcurrentsurveillance istocheckfordisengaged driveshafts,brokenfanblades,frozenorbadbearings, andothermalfunctions inthefan-motor systemwhichwouldcauseasignificant deviation fromthenormalmotorload.Ourreviewosurveillance testdataindicates thattheaveragecurrentobservedduringtestsislessthan56amperesandtherangeofdeviations undernormalyetvariableoperating conditions
.isslightlygreaterthan10amperes.Mearetherefore requesting achangetoSpecification 4.6.5.6.b toread:"b.Verifying thatwiththereturnairfandampersclosed,thefanmotorcurrentis56+10A'1PSwhenthefanspeedis880+20RPM.Thisenvelopewouldboundallnormaloperating readingsandensurethattheintentoftheSpecification, todetectaninoperable system,ismet."
ChaneNo.7Unit1;Page3/41-15;Section3.1.2.7.and4.1.2.7Unit2;Page3/41-15;SectionD.1.2.7and4.1.2.7TheTechnical Specifications requiretherefueling waterstoragetankboratedwatersolutiontemperature bemaintained at70oForaboveinUnit1and80oForaboveinUnit2,whenitistobeusedasaboratedwatersourceinModes5and6.Thistemperature canbeverydifficult tomaintainwhenaddingcoolwatertotheRWSTbyblendingfollowing drainingofthetankforrefueling purposes.
Sincethepresentsolutiontemperature limitsarederivedfromemergency corecoolingrequirements, thishightemperature limitshouldonlyapplyinModes1,2,3and4whichiscoveredbyTechnical Specifications 3.1.2.8and3.5.5.Itistherefore requested thattheminimumtem-peraturelimitforModes5and6bereturnedtoitsoriginalvalueof35.oF}}

Revision as of 08:21, 29 June 2018

Application for Amend to Ol,Changing App a of Tech Specs
ML17331A727
Person / Time
Site: Cook  American Electric Power icon.png
Issue date: 05/26/1981
From: HUNTER R S
INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:
Shared Package
ML17331A728 List:
References
AEP:NRC:0372, AEP:NRC:372, NUDOCS 8105290360
Download: ML17331A727 (8)


Text

REGULATORY ENFORMATION DISTRIBUTION SYSTEM(RIOS)ACCESSION NBR:8105290360 DOC~DATE:81/05/26NOTARIZED:

NODOCKETFACILi50315OonaldCCookNuclearPowerPlant>Unit1iIndianaK~>OA>50316DonaldC~Cookhucl.earPowerPlant>Unit2PIndiana8-500031.AUTH'AMEAUTHORAFFILIATION HUNTERPR~8'ndiana8MichiganElectricCo~RECIP~NAMERECIPIENT AFFILIATION SUBJFCT:Applicdtion for~amendtoOL<changing AppAofTechSpecs~DISTRIBUTION CODE:AOO'ISCOPIESRECEIVED:LTR J.ENCLSSIZE::.5+T'ITLE.:GeneralDistributionforafterIssuanceofOperatingLicenseRECIPIENT IDCODE/NAME'OTES:ICE:3 cooiesallmaterial~Send3copies-'of al1materialtoICE~W/C4ucl-4l~40~RECIPIENTCOPIESIDCODE/NAME LTTRENCLACTION!VARGAE8~0413.13COPTESLTTRENCL0500031505000316INTERNAL:

D/OIRgHUM FACOSIaE..06OELO11RAOASMTBR11221011OIRPDIVOFLICNRCPDR'20A-E4'SR10GFIQ01111101EXTERNAL'CRS NSIC09.05fe1611LPOR0311wlTOTALNUMBER'FCOPIESREQUIREDLTTRNCL i

INDIANAIltMICHIGANELECTRICCOMPANYP.O.BOX18BOWLINGGREENSTATIONNEWYORK,N.Y.10004May26,1981AEP:NRC:0372 DonaldC.CookNuclearPlantUnitNos.1and2DocketNos.50-315and50-316LicenseNos.DPR-58andDPR-74TECHNICAL SPECIFICATIONS CHANGEREQUEST~]g/@a.a.l't'ai',pg tg8U~g~'ibMr.HaroldR.Denton,Director'fficeofNuclearReactorRegulation U.S.NuclearRegulatory Commission Washington, D.C.20555

DearMr.Denton:

Thisletteranditsattachments requestchangesinseveraloftheAppendix'A'echnical Specifications fortheDonaldC.CookNuclearPlantUnitNos.1and2.Attachment 1isthedescription of'hechanges.Attachment 2containstherevisedTechnical Specification pages.Anumberofthesechangesareeditorial.

Allchangeshavebeenindicated byaverticallineontherighthandsideofthepage.WerequestthattheNRCfileandprocessthisTechnical Specification changepackageasasingleamendment.

TheseproposedTechnical Specifications havebeenreviewedandapprovedbythePlantNuclearSafetyCoraIIittee.

Theresultofthesereviewsisthattheseproposedrevisions willnotadversely affectthehealthandsafetyofthepublic.ChangeNos.4,5and6'avebeenreviewedbytheAEPSCNuclearSafetyandDesignReviewCommittee (NSDRC).TheNSDRCconcurswiththePlantPNSRCfindings.

Theremaining changeswillbereviewedatthenextmeetingoftheNSDRCscheduled forJune9,1981.

Mr.HaroldR.DentonAEP:NRC:0372 SeVenproposedTechnical Specification revisions arecontained inthissubmittal; foureditorial innature.ChangeNos.4and7areconsidered tobeClassIIamendments

($1,200feeeach)andchangeNo.6isconsidered tobeaClassII'Iamendment'$

4,000.00fee).ClassIduplicate feesalsoapplyforchangeNos.4,6and7:.Accordingly, attachedisacheckintheamountof$7,600.00forNRCprocessing oftheaforementioned requests.

Verytrulyyours,VicePresident cc:JohnE.Dolan-ColumbusR.C.CallenG.CharnoffR.M.Jurgensen D.V.Shaller-BridgmanRegionIIIResidentInspector 9CookPlant-Bridgman ATTACHMENT 1TOAEP:NRC:0372 Technical Secification Chan'eDescri'tions

~ChN.1(EC(UnitNo.1-Page3/48-8-Section3.8.2.3.Underthedefinitions ofthetwoD.C.bustrains,thesecondoneshouldbechangedfromABtoCD.Cch¹N.E(EC(UnitHo.2-Pages3/48-9and3/48-10;Section4.8.2.3.2d Initem(d),thetablenumberfor-battery emergency.

loadsmustbechangedto4-.8-1A.Thisrevisionisduetothefactthatcurrently therearetwotablesnumbered"Table4.8.1".~ChN.1(EC(Unit1;Page1-7;Table1.2'.Unit2;Page1-8,Table1.2InTable1.2ofbothunits,frequence notations ofthesurveillance scheduling willbespecified asaspecificnumberofdayswheneverthefrequency isgreaterthan24hours.Thewords"6months"and"18months"willberevisedtoread"184days"and"549days"respectively.

Thisterminology conformstoASMEboilerandpressurevesselcode,SectionIII.ChaneHo.4Unit1;page3/42-2;Section3.2.1Unit2;Page3/42-2;Section3.2.1Aspresently written,Specification 3.2.1requiresthataLicenseeEventReport(LER)besubmitted whenevertheAxialFluxDifference (AFD)exceedsthetargetAFDbymorethan+5%regardless ofthecumuiattve penaltydeviation.

InSection3.2.1ofthebasesitisclearlystatedthattheuseofcontrolrodscan'beexpected, inthemajorityofinstances, tocausetheactualAFDtodifferfromthetargetAFDbymorethan+55.~cc'h 1~~~~

Itisourunderstanding thattheintentofSpecification 3.2.1istore-quireLERsubmittal onlyinthoseinstances whenthecumulative penaltydeviation exceeds,theallowable valuesspecified intheactionstatement ofthespecification.

However,ourpresent.Specification 3.2.1doesnotreflectthisunderstanding.

Inordertoclarifytherequirements ofthespecification andtominimizesubmittal ofunnecessary LERs,wearere-questingthataSection3.2.l.dbeaddedtotheexistingAFDspecification.

The-revisedTechnical Specification pagesreflectthisproposedchange.Unit2;Page3/4l-ll;Section4.1.2.3Thecentrifugal chargingpumps,when=testedonrecirculation flowduringmodes5and6,,mustdevelopadischarge pressure2390psig.The15psipressuredifference betweendischarge pressures ofthepumpduringModes5and6andduringModes1-4-is-due-to a.difference

.in-the'Volume ControlTank(VCT)pressureinthosemodes.Thiswasreflected intheUnit1Technical Specifications.

earlierandisnowbeingrevisedaccordingly, intheUnit2Technical Specification.

ChaneNo.5Unit1;Page3/46-35;Section4.6.5.6Unit2;Page3/46-44;Section4.6.5.6TheintentoftheCeqfanmotorcurrentsurveillance istocheckfordisengaged driveshafts,brokenfanblades,frozenorbadbearings, andothermalfunctions inthefan-motor systemwhichwouldcauseasignificant deviation fromthenormalmotorload.Ourreviewosurveillance testdataindicates thattheaveragecurrentobservedduringtestsislessthan56amperesandtherangeofdeviations undernormalyetvariableoperating conditions

.isslightlygreaterthan10amperes.Mearetherefore requesting achangetoSpecification 4.6.5.6.b toread:"b.Verifying thatwiththereturnairfandampersclosed,thefanmotorcurrentis56+10A'1PSwhenthefanspeedis880+20RPM.Thisenvelopewouldboundallnormaloperating readingsandensurethattheintentoftheSpecification, todetectaninoperable system,ismet."

ChaneNo.7Unit1;Page3/41-15;Section3.1.2.7.and4.1.2.7Unit2;Page3/41-15;SectionD.1.2.7and4.1.2.7TheTechnical Specifications requiretherefueling waterstoragetankboratedwatersolutiontemperature bemaintained at70oForaboveinUnit1and80oForaboveinUnit2,whenitistobeusedasaboratedwatersourceinModes5and6.Thistemperature canbeverydifficult tomaintainwhenaddingcoolwatertotheRWSTbyblendingfollowing drainingofthetankforrefueling purposes.

Sincethepresentsolutiontemperature limitsarederivedfromemergency corecoolingrequirements, thishightemperature limitshouldonlyapplyinModes1,2,3and4whichiscoveredbyTechnical Specifications 3.1.2.8and3.5.5.Itistherefore requested thattheminimumtem-peraturelimitforModes5and6bereturnedtoitsoriginalvalueof35.oF