ML21252A514

Application to Revise Technical Specifications to Adopt TSTF-577, Revised Frequencies for Steam Generator Tube Inspections, Rev 1, Using the Consolidated Line Item Improvement Process

ML21252A514
Person / Time
Site:	North Anna
Issue date:	09/09/2021
From:	Mark D. Sartain Virginia Electric & Power Co (VEPCO)
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
21-214, TSTF-577, Rev 1
Download: ML21252A514 (21)

Text

VIRGINIAELECTRICANDPOWERCOMPANY RICHMOND,VIRGINIA23261

September9,2021

10CFR50.90

U.S.NuclearRegulatoryCommission SerialNo.:21-214 ATTN:DocumentControlDesk NRA/ENC: RO )

Washington,DC20555-0001 DocketNos.:50-338 50-339 LicenseNos.:NPF-4 j NPF-7 j

-NORTHANNAPOWERSTATIONUNITS1AND2 !

APPLICATIONTOREVISETECHNICALSPECIFICATIONSTOADOPTTSTF577 j

-USINGTHECONSOLIDATEDLINEITEM PROCESS i IMPRQVEMENT i Pursuantto10CFR50.90,DominionEnergyVirginiaissubmittingarequestforanl amendment1to2.theTechnicalSpecifications(TS)forNorthAnnaTSTF-577,PowerStation(NAPS),1,l "RevisedUnitsandDominionEnergyVirginiarequestsadoptionofRevisionli reviseTSFrequencies5.6.7,"SteamforGeneratorSteamGeneratorProgram,"TubeInspections."TS5.5.8,"SteamTheproposedGeneratorchangesTube inspectionReport,"basedonoperating(SG)history.and l

TheEnclosureprovidesadescriptionandassessmentoftheproposedchanges. containstheexistingTSpagesmarkedtoshowtheproposedchanges.l containsrevised(clean)TSpages.theTSBasesarenotaffectedbythej proposedchanges.

DominionEnergyVirginiarequeststhatthea'mendmentbereviewedunderthel ConsolidatedLineItemimprovementProcess(CLllP).Approvaloftheamendmentis requestedbySeptember1,2022tosupportsteatngeneratortubeinspectionactivities duringtheUnit1refuelingoutage(RFO)scheduledtobegininthefallof2022.Once) approved,theamendmentshallbeimplementedw'ithin30days. l Inaccordancewith10CFR50.91,acopyofthisapplication,withattachments,isbeings

providedtothedesignatedVirginiaOfficial. g r

b t

DocketNos.:Serial50-338/50-339No.:21-214 Page2of3

Shouldyouhaveanyquestionsorrequireadditionalinformation,pleasecontactEricaN.

Combsat804-273-3386.

Sincerely,

f/

MarkD.Sartain VicePresident-NuclearEngineering&FleetSupport

COMMONWEALTHOFVIRGINIA )

COUNTYOFHENRICO )

)

Theforegoingdocumentwasacknowledgedbeforeme,inandfortheCountyandCommonwealth aforesaid,todaybyMr.MarkD.Sartain,whoisVicePresident-NuclearEngineeringandFleet Support,ofVirginiaElectricandPowerCompany.Hehasaffirmedbeforemethatheisduly authorizedtoexecuteandfiletheforegoingdocumentinbehalfofthatcompany,andthatthe statementsinthedocumentaretruetothebestofhisknowledgeandbelief.

Acknowledgedbeforemethisdayof,2021, MyCommissionExpires:183/,24 CRAIGDSLY

NotaryPublic CommonwealthofVirginia Noary Reg.#751865331,22-9 MyCommissionExpiresDecember

Enclosure:

DescriptionandAssessmentofProposedChange

Attachments:

1.ProposedTechnicalSpecificationChanges(Mark-Up) 2.RevisedTechnicalSpecificationPages

Commitmentsmadebythisletter:

AnSGTubeInspectionReportwillbesubmittedwithin30daysafterimplementationof theapprovedlicenseamendment.

DocketNos.:Serial50-338/50-339No.:21-214 Page3of3

cc:RegionalAdministrator,RegionII U.S.NuclearRegulatoryCommission MarquisOneTower 245PeachtreeCenterAvenue,NE,Suite1200 Atlanta,Georgia30303-1257

Mr.G.E.Miller SeniorProjectManager-NorthAnnaPowerStation U.S.NuclearRegulatoryCommission MailStop09E-3 OneWhiteFlintNorth 11555RockvillePike Rockville,Maryland20852-2738

NRCSeniorResidentInspector NorthAnnaPowerStation

OldDominionElectricCooperative R-North-Anna-Correspondence@odec.com StateHealthCommissioner VirginiaDepartmentofHealth JamesMadisonBuilding-7thfloor 109GovernorStreet,Suite730 Richmond,Virginia23219 DocketSerialNos.:No.:50-338/33921-214

ENCLOSURE

VirginiaElectricandPowerCompany (DominionEnergyVirginia)

NorthAnnaPowerStationUnit1andUnit2 DocketSerialNos.:No.:50-338/33921-214 PageEnclosure1of4

DESCRIPTIONANDASSESSMENT

1.0DESCRIPTION

Pursuantto10CFR50.90,VirginiaElectricandPowerCompany(DominionEnergy Virginia)proposeschangestotheNorthAnnaPowerStation(NAPS)Units1and2 OperatingLicenses(OLs)andTechnicalSpecifications(TS)toadoptTSTF-577,Rev.1, "RevisedFrequenciesforSteamGeneratorTubeInspections."TheTSrelatedtosteam generator(SG)tubeinspectionsandreportingarebeingrevisedbasedonoperating history.

TheproposedchangesrevisetheTSrelatedtoSGtubeinspectionandreporting requirements:intheAdministrativeControlssectionoftheTS.Specifically,theNAPS Units1and2TSarebeingrevisedtodefineanew,fixedSGtubeinspectionfrequency ofatleastevery96effectivefullpowermonths(EFPMs)andtoreviseinspectionperiod requirements.Thenewinspectionperiodstartsaftera100%inspectionofallSGtubes hasbeenperformedduringasingleoutage(pastorfuture),whichwascompletedfor NAPSUnits1.and2duringthespring2018andspring2019refuelingoutages(RFOs),

respectively.ThecurrentTSrequirementtoperformaninspectionafteracrackisfound within,"24effectivefullpowermonthsoronerefuelingoutage(whicheverresultsin morefrequentinspections),"isalsobeingrevisedtorequireaninspectionduringthe nextRFO.Finally,theproposedchangerearrangestheexistingreportingrequirements inTS5.6.7forclarity.

2.0ASSESSMENT 2.1ApplicabilityofSafetyEvaluation DominionEnergyVirginiahasreviewedthesafetyevaluationforTSTF-577,Rev.1, providedtotheTechnicalSpeci'ficationsTaskForceinaletterdatedApril14,2021 evaluation(ADAMSAccessiontheinformationNo.ML21'098A188).inThisTSTF-577,reviewRev.included1AsthedescribedNRCinstaff'sthe subsequentandparagraphs,DominionprovidedEnergyVirginiahasconcludedthatthejustifications

presentedinTSTF-577,Rev.1,andthesafetyevaluationpreparedbytheNRCstaff areapplicabletoNAPSUnits1and2andjustifythisamendmentfortheincorporationof thechangesintotheNAPSTS.

ThecurrentSGTSrequirementsarebasedonTSTF-510,"RevisiontoSteam GeneratorProgramInspectionFrequenciesandTubeSampleSelection."BothNAPS Units1and2SGshaveAlloy690thermallytreated(Alloy690TT)tubes.Thecurrent DocketSerialNos.:No.:50-338/33921-214 PageEnclosure2of4

inspectionperiodfollowingimplementationofTSTF-577,Rev.1,willbeestablishedas beginninginMarch2018forNAPSUnit1andMarch2019forNAPSUnit2.Dominion EnergyVirginiawillsubmitaSGTubeInspectionReportmeetingtherevisedTS5.6.7 requirementswithin30daysafterimplementationofthelicenseamendment.

2.2Variations DominionEnergyVirginiaisnotproposinganytechnicalvariationsordeviationsfrom theTSchangesdescribedinTSTF-577,Rev.1,ortheapplicablepartsoftheNRC staff'ssafetyevaluationdatedApril14,2021.(ADAMSAccessionNo.ML21098A188).

TheNAPSTSutilizedifferentnumberingthantheStandardTechnicalSpecificationson whichTSTF-577,Rev.1,wasbased.Specifically,the"SteamGenerator(SG)Program" TSTF.isnumberedThisdifference5.5.8intheisadministrativeNAPSUnits1andanddoes2TSnotratheraffectthanthe5.5.9applicabilityasstatedofTSTF-inthe

577,Rev.1,totheNAPSUnits1and2TS.

TheNAPSUnits1and2TScontainsarequirementthatdiffersfromtheStandard TechnicalSpecificationsonwhichTSTF-577,Rev.1,wasbasedbutisencompassedin theTSTF-577,Rev.1,justification.Specifically,NAPSUnits1and2TS5.5.8,"Steam Generator(SG)Program,"itemb.2,states,"Leakageisnottoexceed1gpmforall SGs,"ratherthan,"Leakageisnottoexceed1gpmperSG;"however,theNAPSTS requirementforSGleakageismoreconservativeandisthereforeacceptable.

3.0REGULATORYANALYSIS 3.1NoSignificantHazardsConsiderationAnalysis DominionEnergyVirginiarequestsadoptionofTSTF577,Rev.1,"Revised FrequenciesforSteamGeneratorTubeInspections."TheTechnicalSpecifications(TS) relatedtosteamgeneratortubeinspectionsandreportingaresignifi'cantrevisedbasedon operatinghistory.DominionEnergyVirginiahasevaluatedifahazards considerationisinvo'Ivedwiththeproposedamendment(s)byfocusingbnthethree standardssetforthin10CFR50.92,"Issuanceofamendment,"asdiscussedbelow:

1 Doestheproposedamendmentinvolveasignificantincreaseinthe.probabilityor consequencesofanaccidentpreviouslyevaluated?

Respoonse:Non :m Theproposedchangerevisestheinspectionfrequenciesforsteamgenerator tubeinspectionsandassociatedreportingrequirements.Inspectionfrequencies DocketSerialNos.:No.:50-338/33921-214 PageEnclosure3of4

arenotaninitiatortoasteamgeneratortuberuptureaccident,oranyother accidentpreviouslyevaluated.Asaresult,theprobabilityofanyaccident previouslyevaluatedisnotsignificantlyincreased.TheSGtubesinspectedby theSGProgramcontinuetoberequiredtomeettheSGProgramperformance criteriaandtobecapableofperforminganyfunctionsassumedintheaccident analysis.Asaresult,theconsequencesofanyaccidentpreviouslyevaluatedare notsignificantlyincreased.

Therefore,theproposedchangedoesnotinvolveasignificantincreaseinthe probabilityorconsequencesofanaccidentpreviouslyevaluated.

2.Doestheproposedamendmentcreatethepossibilityofanewordifferentkindof accidentfromanyaccidentpreviouslyevaluated?

Response:No.

Theproposedchangerevisestheinspectionfrequenciesforsteamgenerator tubeinspectionsandassociatedreportingrequirements.Theproposedchange doesnotalter:thedesignfunctionoroperationoftheSGsortheabilityofanSG toperformthe'designfunction.TheSGtubescontinuetoberequiredtomeetthe SGProgramperformancecriteria.Theproposedchangedoesnotcreatethe possibilityofanewordifferentkindofaccidentduetocrediblenewfailure mechanisms,malfunctions,oraccidentinitiatorsthatarenotconsideredinthe designandlicensingbases.

Therefore,theproposedchangedoesnotcreatethepossibilityofanewor differentkindofaccidentfromanyaccidentpreviouslyevaluated.

3.Doesthe.proposed.amendmentinvolveasignificantreductioninamarginof safety?

Response:'No.

The roposedchangerevisestheinspectionfrequenciedforsteamgenerator tubeinspectionsandassociatedreportingrequirements.Theproposedchange doesnotchangeanyofthecontrollingvaluesofparametersusedtoavoid exceedingregulatoryorlicensinglimits.Theproposedchangedoesnotaffecta designbasisorsafetylimit,oranycontrollingvalueforaxparameter*established inthe'UFSARorthelicense.

DocketSerialNos.:No.:50-338/33921-214 PageEnclosure4of4

Therefore,theproposedchangedoesnotinvolveasignificantreductionina marginofsafety.

Basedontheabove,DominionEnergyVirginiaconcludesthattheproposedchange presentsnosignificanthazardsconsiderationunderthestandardssetforthin10CFR 50.92(c),and,accordingly,afindingof"nosignificanthazardsconsideration"isjustified.

3.2Conclusion Inconclusion,'basedontheconsiderationsdiscussedabove,(1)thereisreasonable assurancethatthehealthandsafetyofthepublicwillnotbeendangeredbyoperationin theproposedmanner,(2)suchactivitieswillbeconductedincompliancewiththe Commission5sregulations,and(3)th'eissuanceoftheamendmentwillnotbeinimicalto thecommon2defenseandsecurityortothehealthandsafetyofthepublic.

4.0ENVIRONNIENTALEVALUATION A reviewhasdete:rminedthattheproposedamendmentwouldchangearequirement withrespectoto,.installationoruseofafacilitycomponentlocatedwithintherestricted area,asdefinedTin10CFR20,orwouldchangeaninspectionorsurveillance requirement.KHowe.verctheproposedamendmentdoesnotinvolve:

(i)asignificanthazardsconsideration, (ii)effluentsasignificantchangeminthatmay:bereleasedthe.typesoffsite,oraorsignificantincreaseintheamountsofany (iii)asinificant'increase'inindividualorcumulativeoccupationalradiation exposure.

Accordingly,itheproposedamendmentmeetstheeligibilitycriterionforcategorical

! exclusionset4forthin10CFR51.22(c)(9).Therefore,pursuantto10CFR51.22(b),no environmental:.impactstatementorenvironmentalassessmentneedbepreparedin connectionwiththeproposedamendment. j

l

a p DocketSerialNos.:No.:50-338/33921-214

ATTACHMENT1

VirginiaElectricandPowerCompany (DominionEnergyVirginia)

NorthAnnaPowerStationUnit1andUnit2 DocketSerialNosxNox50-338/33921-214 AttachmentPage1of61

ProgramsandManuals5.5

5.5ProgramsandManuals

5.5.7 M

ThisprogramprovidescontrolsforinservicetestingofASMECode Class1,2,and3components.Theprogramshallincludethe following:

a. TestingfrequenciesspecifiedintheASMECodeforOperationand MaintenanceofNuclearPowerPlantsandapplicableAddendaas follows:

ASMECodeforOperationand MaintenancePlantsandapplicableofNuclearAddendaPowerRequiredFrequenciesfor terminologyforinservice performinginservice Weeklytestingactivities Attestingleastactivitiesonceper7days Monthly Atleastonceper31days Quarterlyorevery3months Atleastonceper92days Semiannuallyorevery6monthsAtleastonceper184days Every9monthsannually Atleastonceper276days Yearlyor Atleastonceper366days Bienniallyorevery2years Atleastonceper731days b.TheprovisionsofSR3.,0.2areapplicabletotheaboverequired Frequenciesforperforminginservicetestingactivities; c.TheprovisionsofSR3.0.3areapplicabletoinservicetesting activities;and d.NothingPowerPlantsintheshallASMEbeCodeconstruedforOperationtosupersedeandMaintenancetherequirementsofNuclearof anyTS.

5.5.8 W AnSGSteam-GeneratesProgramshallbeestablishedandimplemented/

toensurethatSGtubeintegrityismaintained.following:Inaddition,the SGSteamGeneFatesProgramshallincludethe j a Provisionsforconditionmeansmonitoringassessments.oftheCondition monitoringassessmentanevaluation "asfound" conditionofthetubingwithrespecttotheperformancecriteria

forstructuralintegrityandaccidentinducedleakage.The"as found"conditionreferstotheconditionofthetubingduringa SGinspectionoutage,asdeterminedfromtheinservice (continued)

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ProgramsandManuals5.5

5.5 ProgramsandManuals

5.5.8 M

a. (continued) inspectionresultsorbyothermeans,priortothepluggingof tubes.Conditionmonitoringassessmentsshallbeconducted duringeachoutageduringwhichtheSGtubesareinspectedor pluggedtoconfirmthattheperformancecriteriaarebeingmet.

b. shallPerformancebemaintainedcriteriabyformeetingSGtubetheintegrity.performanceSGcriteriatubeintegrityfortube LEAKAGE.structuralintegrity,accidentinducedleakage,andoperational

1.SGsteam-genepatesStructuralintegritytubesperformanceshallretaincriterion:structuralAllintegrityin-service overthefullrangeofnormaloperatingconditions l (includingstartup,operationinthepowerrange,hotstandby, andcooldown),andallanticipatedtransientsincludedinthey designspecification,designbasisaccidentsThisincludes retainingasafetyfactorof3.0againstburstundernormal steadystatefullpoweroperationprimarytosecondary pressuredifferentialandasafetyfactorof1.4against burstappliedtothedesignbasisaccidentprimaryto secondarypressuredifferentials.Apartfromtheabove requirements,additionalloadingconditionsassociatedwith thedesignbasisaccidents,orcombinationofaccidentsin accordancewiththedesignandlicensingbasis,shallalsobe evaluatedsignificantlytodeterminetoburstiforthecollapse.associatedIntheloadsassessmentcontributeoftube collapseintegrity,shallthosebeloadsdeterminedthatdoandsignificantlyassessedincombinationaffectburstwithor combinedtheloadsprimaryduetoloadspressureandwith1.0onasafetyaxialsecondaryfactorofloads.1.2onthe

2.Accidentinducedleakageperformancecriterion:Theprimary tosecondaryaccident,accidentinducedleakagerateiforanydesign basis otherthanaSGtuberuptur.e,shallnot I exceedtheleakagerateassumedintheaccidentanalysisin

termsoftotalleakagerateforallSGsandleakageratefor

! anindividualSG.Leakageisnottoexceed1gpmforallSGs 3.TheoperationalLEAKAGEperformancecriterionisspecified" inLCO3.4.13,RCSOperationalLEAKAGE."

NorthAnnaUnits1and2 5.5-6 Amendments249/250[

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ProgramsandManuals5.5

5.5 ProgramsandManuals

5.5.8 W (continued) c ProvisionsforSGtubepluggingcriteria.Tubesfoundbyf inserviceinspectiontocontainflawswithadepthequaltoor exceeding40%ofthenominaltubewallthicknessshallbe plugged.

d. ProvisionsforSGtubeinspections.PeriodicSGtubeinspections shallbeperformed.Thenumberandportionsofthetubes objectiveinspectedandmethodsofinspectionshall(e.g.,beperformedwiththe ofdetectingflawsofanytype volumetric alongflaws,theaxiallengthandofcircumferentialthetube,fromcracks)thetube-to-tubesheetthatmaybepresentweldat thetubeinlettothetube-to-tubesheetweldatthetubeoutlet, andthatmaysatisfytheapplicabletubepluggingcriteria.TheJ tube-to-tubesheetweldisnotpartofthetube.Inadditionto meetingtherequirementsofd.1,d.2,andd3below,the shallinspectionbesuchscope,astoinspectionensurethatmethods,SGtubeandintegrityinspectionismaintainedintervals untilthenextSGinspection.Adegradationassessmentshallbef performedtodeterminethetypeandlocationofflawstowhich thetubesmaybesusceptibleand,basedonthisassessment,to whatdeterminelocationswhichinspectionmethodsneedtobeemployedandat

1.Inspect100%ofthetubesineachSGduringthefirst refuelingoutagefollowingSGinstallation 2 AfterthefirstrefuelingoutagefollowingSGinstallation,

100%of thetubesin

96..

, 1

,,whichdefinesthe irtspectionperiod a-location-net-prev4ous4-y-4nspected-with-a-teeknique-eapable t of-detecting-this-type-of-degradation-at-this-location-and that--may-satisfy-the-appl4sable-plugging-cr-4ter-4a3--t-he minimum-numben-of-loeations-4nspected-w4th-sush-a-eapable 4nspection-teeknique-dur-4ng-the-r-emainder-of-the-4nspestion per-iod-may-be-pr-eratedThe-4rastion-of-10sations-te4e inspected--for--this-potentia-1-type-of-4egr-adation-at-this location-at-the-end-of-the-4nspection-per4od-shallbe-no-less than--the-r-atte-of--the-number-of-times4he4G-4s--sc-hedu444-te (sonttnued)

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ProgramsandManuals5.5

5.5ProgramsandManuals

5.5.8 M (continued) 2.(continued)

m a.

W b.

W c.

W d

3.inspectionIfcrackindicationsforeachaffectedarefoundandinpotentiallyanySGtube,affectedthentheSGnext thedegradationmechanismthatcausedthecrackindicationforf sha l

/ beat thenext elingoutage i 4.aspecM.sas).Ifdefinitiveinformation,suchasfrom,

examinationofapulled;tube,diagnosticnon-destructave, testing,orengineeringevaluationindicatesthatcrack(s),a crack-likeindicationisnotassociatedwitha 1 thentheindicationneednotbetreatedasacrack,

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ProgramsandManuals5.5

5.5 ProgramsandManuals

5.5.8 W (continued)

e. Provisionsformonitoringoperationalprimarytosecondary LEAKAGE.

5.5.9 m Thisprogramprovidescontrolsformonitoringsecondarywater chemistrytoinhibitSGtubedegradationandlowpressureturbine discstresscorrosioncracking.Theprogramshallinclude:

a. Identificationofasamplingscheduleforthecriticalvariables andcontrolpointsforthesevariables;

b. Identificationoftheproceduresusedtomeasurethevaluesof thecriticalvariables;

c. monitoringIdentificationthedischargeofprocessofsamplingthecondensatepoints,pumpswhichforshallevidenceincludeof condenserinleakage;

d. Proceduresfortherecordingandmanagementofdata;

e. chemistryProceduresconditions;definingcorrectiveandactionsforalloffcontrolpoint

f. Aprocedureidentifyingtheauthorityresponsibleforthe interpretationofthedataandthesequenceandtimingof administrativeevents,whichisrequiredtoinitiatecorrective action.

5.5.10 A programshallbeestablishedtoimplementthefollowingrequired testingofEngineeredSafetyFeature(ESF)filterventilation systemsingeneralconformancewiththefrequenciesandrequirements ofRegulatory1.52,Positions2,C.5.a,1978,C.5.c,C.5.d,andC.6.bofRegulatory Guide RevisionMarch andANSIN510-1975.

a. DemonstratehighefficiencyforeachoftheESF-,airsystemsthataninplacetestof the particulate<(HEPA)filtersshowsa penetrationandsystembypass11.0%whentestedinaccordance (continued)

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ReportingRequirements5.6

5.6 ReportingRequirements

5.6.7 W A reportshallbesubmittedwithin180daysaftertheinitialentry intoMODE4 followingcompletionofaninspectionperformedin accordancewiththeSpecification5.5.8,"SteamGenerator(SG)

Program."Thereportshallinclude:

a. ThescopeofinspectionsperformedoneachSG,

b-,W #

G M

A

e M

eL Thenumberandpercentageoftubespluggedtodate,andthe effectivepluggingpercentageineachsteamgenerator,and 9r W

b. Thedegradationnondestructivesusceptibility;examinationtechniquesutilizedfortubeswithincreased

c. Foreachdegradationmechanismfound:

1Thenondestructiveexaminationtechniquesutilized; 2.Thelocation,orientation(iflinear),measuredsize(ifavailable),andvoltage responseforeachindication.Fortubewearatsupportstructureslessthan20 percentthrough-wall,onlythetotalnumberofindicationsneedstobereported; 3.Adescriptionoftheconditionmonitoringassessmentandresults,includingthe margintothetubeintegrityperformancecriteriaandcomparisonwiththemargin predictedtoexistattheinspectionbythepreviousforward-lookingtubeintegrity assessment;and 4.Thenumberoftubespluggedduringtheinspectionoutage.

d.Anscheduledanalysisinspectionsummary(forward-lookingofthetubeintegritytubeconditionsintegrityassessment)predictedtoexistrelativeatthetothenext applicableperformancecriteria,includingtheanalysismethodology,inputs,and results;

f.TheresultsofanySGsecondarysideinspections.

NorthAnnUnits1and2 5.6-5 Amendmentsa

DocketSerialNos.:No.:50-338/33921-214

ATTACHMENT2

VirginiaElectricandPowerCompany (DominionEnergyVirginia)

NorthAnnaPowerStationUnit1andUnit2 DocketSerialNos.:No.:50-338/33921-214 AttachmentPage1of52

ProgramsandManuals5.5

5.5 ProgramsandManuals

5.5.7 M

ThisprogramprovidescontrolsforinservicetestingofASMECode Class1,2,and3componentsTheprogramshallincludethe following:

a. TestingfrequenciesofNuclearspecifiedintheandASMECodeforOperationasand Maintenance PowerPlants applicableAddenda follows:

ASMECodeforofOperationand MaintenanceNuclearPower PlantsandapplicableAddendaRequiredFrequenciesfor terminologyforinservice performinginservice testingactivities testingactivities Weekly Atleastonceper7days Monthly Atleastonceper31days Quarterlyorevery3months Atleastonceper92days Semiannuallyorevery6monthsAtleastonceper184days Every9months Atleastonceper276days Yearlyorannually Atleastonceper366days Bienniallyorevery2years Atleastonceper731days b.'TheprovisionsofSR3.0.2areapplicabletotheaboverequired Frequenciesforperforminginservicetestingactivities;

c. TheprovisionsofSR3.0.3areapplicabletoinservicetesting activities;and

d. NothingintheASMEbeCodeforOperationandMaintenanceofNuclearof PowerPlantsshallconstruedtosupersedetherequirements anyTS.

5.5.8 EW AntubeSGintegrityProgramshallismaintained.beestablishedInaddition,andimplementedtheSGProgramtoensureshallthatSG includethefollowing:

a Provisionsforconditionmonitoringassessments.Condition monitoringconditionofassessmentthetubingmeanswithanrespectevaluationtotheofperformancethe"asfound"criteria forstructuralintegrityandaccidentinducedleakage.The"as found"conditionreferstotheconditionofthetubingduringa SGinspectionoutage,asdeterminedfromtheinservice (continued)

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ProgramsandManuals5.5

5.5 ProgramsandManuals

5.5.8 M

a. (continued)

inspectionresultsorbyothermeans,priortothepluggingof tubes.Conditionmonitoringassessmentsshallbeconducted duringeachoutageduringwhichtheSGtubesareinspectedor pluggedtoconfirmthattheperformancecriteriaarebeingmet

b. PerformancecriteriaforSGtubeintegrity.SGtubeintegrity shallbemaintainedbymeetingtheperformancecriteriafortube structuralintegrity,accidentinducedleakage,andoperational LEAKAGE.

1.Structuralintegrityperformancecriterion:Allin-service SGtubesshallretainstructuralintegrityoverthefulll operationrangeofnormalintheoperatingpowerrange,conditionshotstandby,(includingandcoolstartup,down),

andallanticipatedtransientsincludedinthedesign specification,designbasisaccidentsThisincludes retainingasafetyfactorof3.0againstburstundernormal steadystatefullpoweroperationprimarytosecondary pressuredifferentialandasafetyfactorof1.4against burstappliedtothedesignbasisaccidentprimaryto secondarypressuredifferentials.Apartfromtheabove requirements,designadditionalaccidents,loadingconditionsassociatedwith the basis orcombinationofaccidentsin accordancewiththedesignandlicensingbasis,shallalso beevaluatedtodetermineiftheassociatedloadscontribute significantlytoburstorcollapseIntheassessmentof tubeintegrity,thoseloadsthatdosignificantlyaffect burstorcollapseshallbedeterminedandassessedin combinationwiththeloadsduetopressurewithasafety factorof1.2onthecombinedprimaryloadsand1.0onaxial secondaryloads.

2.Accidentinducedleakageperformancecriterion:Theprimary tosecondaryaccidentinducedleakagerateforanydesign basisaccident,otherthanaSGtuberupture,shallnot exceedtheleakagerateassumedintheaccidentanalysisin termsoftotalleakageLeakagerateforallSGsandleakageratefor anindividualSG. isnottoexceed1gpmforallSGs.

3.TheinLCOoperational3.4.13,"RCSLEAKAGEOperationalperformanceLEAKAGE."criterionisspecified

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ProgramsandManuals5.5

5.5 ProgramsandManuals

55.8 W (continued)

c. ProvisionsforSGtubepluggingcriteria.Tubesfoundby inserviceinspectiontocontainflawswithadepthequaltoor exceeding40%ofthenominaltubewallthicknessshallbe plugged.

d. Provisionsshallbeperformed.forSGtubeTheinspections.numberandportionsPeriodicofSGthetubetubesinspections objectiveinspectedandmethodsofinspectionshall(e.g.,beperformedwiththe flaws,axialofanddetectingcircumferentialflawsofanycracks)typethatmayvolumetricbepresent alongthelengthofthetube,fromthetube-to-tubesheetoutlet,weldat thetubeinlettothetube-to-tubesheetweldatthetube andthatmaysatisfytheapplicabletubepluggingcriteria.The tube-to-tubesheetweldisnotpartofthetube.Inadditionto meetingtherequirementsofd.1,d.2,andd.3below,the inspectionscope,inspectionmethods,andinspectionintervals shallbesuchastoensurethatSGtubeintegrityismaintained untilthenextSGinspection.Adegradationassessmentshallbe performedtodeterminethetypeandlocationofflawstowhich thetubesmaybesusceptibleand,basedonthisassessment,to determinewhichinspectionmethodsneedtobeemployedandat whatlocations.

1.refuelingInspect100%outageofthefollowingtubesinSGeachinstallation.SGduringthefirst

2.AfterthefirstrefuelingoutagefollowingSGinstallation, inspect100%ofthetubesmonths,ineachSGatleastevery96 periodeffectivefullpowerwhichdefinestheinspection

3 IfcrackindicationsarefoundinanySGtube,thenthenext theinspectiondegradationforeachmechanismaffectedthatandcausedpotentiallythecrackaffectedindicationSGfor shallbeatthenextrefuelingoutage.Ifdefinitive l t information,suchasfromexaminationofapulledtube, diagnosticnon-destructivetesting,orengineering evaluationindicatesthatacrack-likeindicationisnot

' associatedwithacrack(s),thentheindicationneednotbe treatedasacrack.

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ProgramsandManuals5.5

5.5 ProgramsandManuals

5.5.8 W (continued)

e. Provisionsformonitoringoperationalprimarytosecondary LEAKAGE.

5.5.9 m ThischemistryprogramtoprovidesinhibitSGcontrolstubedegradationformonitoringandlowsecondarypressurewaterturbine idiscstresscorrosioncracking.Theprogramshallinclude:

a. Identification;controlofasamplingscheduleforthecriticalvariables and pointsforthesevariables;

b. the-Identificationcri'ticalvariables;oftheproceduresusedtomeasurethevaluesof

c. monitoringIdentificationthedischargeofprocessofsamplingthecondensatepoints,pumpswhichforshallevidenceincludeof

1 'co'ndenserinleakage;

d.Proceduresfor-therecordingandmanagementofdata;

e. Proceduresdefiningcorrectiveactionsforalloffcontrolpoint c chemistry:conditions;and ef.sAinterpretationprocedureidentifyingofthedatatheandauthoritythesequenceresponsibleandtimingfortheof vaction.sadministrativeevents,whichisrequiredtoinitiatecorrective

5.5.,10s

,testingxofEngineered5SafetyA.programshallbe-establishedFeaturetoimplement(ESF)filterthefollowingventilationrequired

>ofsystemsRegulatorysPositions>in!generalconformanceC.S.a,withC.5c,theC.5.d,frequenciesandC.6.bandofrequirementsRegulatory

! Guide.1.52,xRevision2,March1978,andANSIN510-1975.

an DemonstrateforeachoftheESFsystemsthataninplacetestof thehighefficiencyparticulate<air(HEPA)fi1tersshowsa penetrationandsystembypass1.0%whentes'tedinaccordance (continued)

NorthAnnaUnits1and2 5.5-8 Amendments DocketSerialNos.:No.:50-338/33921-214 AttachmentPage5of52

ReportingRequirements5.6

5.6 ReportingRequirements

5.6.7 SteamGeneratorTubeInspectionReport Areportshall4followingbesubmittedwithinof180daysaftertheinitialentry intoMODE completionaninspectionperformedin accordancewiththeSpecification5.5.8,"SteamGenerator(SG)

Program."The"reportshallinclude:

a. The.scopeofinspectionsperformedoneachSG, b.The1nondestructivewithincreaseddegradationexaminationsusceptibility;techniquesutilizedfortubes

c. For:eachsdegradationmechanismfound:

L <Thenondestructiveexaminationtechniquesutilized;

2 The.1ocation,orientation(iflinear),measuredsize(if x.available),andvoltageresponseforeachindication.For

.'tubeswearatsupportstructureslessthan20percent xthrough-wall,bereparted;onlythetotalnumberofindicationsneedsto

3..aAdescriptionoftheconditionmonitoringassessmentand resuTts,"includingthemargintothetubeintegrity

~performancecriteriaandcomparisonwiththemargin sspredicted~to=existattheinspectionbytheprevious eforward-lookingtubeintegrityassessment;and 4.':Theinumberoftubespluggedduringtheinspectionoutage

xd An.analysisat,the.summ'aryofthetubeintegrityconditionspredicted

n. toex:ist nextscheduledinspection(forward-lookingtube s x :integrityassessment)criteria.,.inclu'dingtherelativeanalysistomethodology,theapplicableinputs,performanceand

[ results;

., i

e. Thenumberandpercentageoftubespluggedtodate,andthe effectivepl:uggingpercentageineachsteamgenerator,and

Af.TheresultsofanySGsecondarysideinspections.

NorthAnnaUnits1and2 5.6-5 Amendments