ML16267A400

Grand Gulf Nuclear Station, Unit 1 - Clarification of Grand Gulf Nuclear Station Containment Leak Rate Program Description

ML16267A400
Person / Time
Site:	Grand Gulf
Issue date:	09/23/2016
From:	Fallacara V Entergy Operations
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
GNRO-2016/00052
Download: ML16267A400 (5)

Text

GNRO-2016/00052September23,2016U.S.NuclearRegulatoryCommissionAttn:DocumentControlDeskWashington,DC20555-0001EntergyOperations,Inc.P.O.Box756PortGibson,MS39150VincentFallacaraVicePresident,OperationsGrandGulfNuclearStationTel.(601)437-7500

SUBJECT:

ClarificationofGrandGulfNuclearStationContainmentLeakRateProgramDescriptionGrandGulfNuclearStation,Unit1DocketNo.50-416LicenseNo.NPF-29

REFERENCE:

1.NRCCorrespondencetoEntergyGNRI2016/00088,"QuestiontoGGNSRegardingLRAB1.1.15,"datedSeptember21,2016

DearSirorMadam:

EntergyOperations,Inc.isproviding,inAttachment1,aclarificationtotheLicenseRenewalApplication(LRA)asrequestedinReference1.ThisdocumentisbeingprovidedtosupportreviewoftheGrandGulfNuclearStation(GGNS)LRASafetyEvaluationReport(SER).Thislettercontainsnonewcommitments.Ifyouhaveanyquestionsorrequireadditionalinformation,pleasecontactJamesNadeauat(601)437-2103.Ideclareunderpenaltyofperjurythattheforegoingistrueandcorrect.Executedonthe23rddayofSeptember,2016.VF/sas

Attachment:

1.ClarificationofGGNSContainmentLeakRateProgramDescriptioncc:(SeeNextPage)

GNRO-2016/00052Page2of2cc:U.S.NuclearRegulatoryCommissionATTN:Mr.JimKim,NRR/DORL(w/2)MailStopOWFN8B1Rockville,MD20852-2738U.S.NuclearRegulatoryCommissionATTN:Mr.KrissM.Kennedy(w/2)RegionalAdministrator,RegionIV1600EastLamarBoulevardArlington,TX76011-4511Mr.B.J.Smith(w/2)Director,DivisionofRadiologicalHealthMississippiStateDepartmentofHealthDivisionofRadiologicalHealth3150LawsonStreetJackson,MS39213NRCSeniorResidentInspectorGrandGulfNuclearStationPortGibson,MS39150 Attachment1toGNRO-2016/00052ClarificationofGGNSContainmentLeakRateProgramDescription Attachment1toGNRO-2016/00052Page1of2OnFebruary17,2016,theNRCstaffapproved(ADAMSAccessionNo.ML16011A247)aGrandGulflicenseamendmentrequest(ADAMSAccessionNo.ML15147A599)toadoptNEI94-01,Revision3-A,subjecttospecificconditionsandwithpartialimplementationofANSI/ANS56.8-2002,"ContainmentSystemLeakageTestingRequirements,"astheimplementingdocumentforType8andTypeCleakratetesting(LRT).8asedupontheNRCacceptanceoftheGrandGulflicenseamendment,changesarewarrantedtotheGrandGulfContainmentLeakRateProgramdescriptionsinlicenserenewalapplication(LRA)sectionsA.1.15and8.1.15.ThelicenseamendmentdoesnotaltertheconclusionthattheContainmentLeakRateProgramelementsareconsistentwiththecorrespondingprogramelementsdescribedinNUREG-1801SectionXI.S4.However,achangetotheLRAiswarrantedtoclarifythedocumentsthatprovidetheguidelinesforimplementingtheGrandGulfContainmentLeakRateProgram.SeechangestoA.1.15and8.1.15shownbelow.Additionsareshownwithunderlineanddeletionswithstrikethrough.A.1.15ContainmentLeakRateProgramTheContainmentLeakRateProgramprovidesfordetectionoflossofmaterial,cracking,andlossoffunctioninvarioussystemspenetratingcontainment.Theprogramalsoprovidesfordetectionofage-relateddegradationinmaterialpropertiesofgaskets,a-rings,andpackingmaterialsfortheprimarycontainmentpressureboundaryaccesspoints.Containmentleakageratetests(LRT)areperformedtoassurethatleakagethroughthecontainmentandsystemsandcomponentspenetratingprimarycontainmentdoesnotexceedallowableleakagelimitsspecifiedintheplanttechnicalspecifications.TypesA,8andCleakageratetestingwillbeimplementedinaccordancewiththecriteriasetforthinRG1.163,NEI94-01,Revision3-A,andANSI/ANS-56.8-2002,whichareguidelinesforacceptableleakratetestingprograms.AnintegratedleakratetestA)isperformedduringaperiodofreactorshutdown.atthefrequencyspecifiedin10erRPart50,AppendixJ,OptionB,baseduponthecriteriainRegulatoryGuide1.163,NEI9401,andANSI56.81994.Performanceoftheintegratedleakratetestper10CFRPart50,AppendixJdemonstratestheleak-tightnessandstructuralintegrityofthecontainment.Localleakratetests(hbR+Type8andC)areperformedonisolationvalvesandcontainmentaccesspenetrations.,-atTestfrequenciestHatforTypesA,8andCleakageratetestingcomplywiththerequirementsof10CFRPart50,AppendixJ,Option8,baseduponthecriteriainNEI94-01,Revision3-A.

Attachment1toGNRO-2016/00052Page2of28.1.15ContainmentLeakRateProgramDescriptionTheContainmentLeakRateProgramisanexistingprogramthatprovidesfordetectionoflossofmaterial,cracking,andlossoffunctioninvarioussystemspenetratingcontainment.Theprogramalsoprovidesfordetectionofage-relateddegradationinmaterialpropertiesofgaskets,o-rings,andpackingmaterialsfortheprimarycontainmentpressureboundaryaccesspoints.Containmentleakageratetests(LRT)areperformedtoassurethatleakagethroughthecontainmentandsystemsandcomponentspenetratingprimarycontainmentdoesnotexceedallowableleakagelimitsspecifiedintheplanttechnicalspecifications.TypesA,BandCleakageratetestingwillbeimplementedinaccordancewiththecriteriasetforthinRG1.163,NEI94-01,Revision3-A,andANSI/ANS-56.8-2002,whichareguidelinesforacceptableleakratetestingprograms.Anintegratedleakratetest(.f.bR+TypeA)isperformedduringaperiodofreactorshutdown.atthefrequencyspecifiedin10CFRPart50,AppendixJ,OptionB,baseduponthecriteriainRegulatoryGuide1.16d,NEIQ401,andANSI56.81QQ4.Performanceoftheintegratedleakratetestper10CFRPart50,AppendixJdemonstratestheleak-tightnessandstructuralintegrityofthecontainment.Localleakratetests(hbR+TypeBandC)areperformedonisolationvalvesandcontainmentaccesspenetrations.atTestfrequenciesthatforTypesA,BandCleakageratetestingcomplywiththerequirementsof10CFRPart50,AppendixJ,OptionB,baseduponthecriteriainNEI94-01,Revision3-A../