ML17263A953

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Comments on Proposed Suppl 5 to GL 88-20 Re Reduction in Seismic Hazard to Majority of Us NPP
ML17263A953
Person / Time
Site: Ginna Constellation icon.png
Issue date: 02/28/1995
From: MECREDY R C
ROCHESTER GAS & ELECTRIC CORP.
To:
NRC
References
FRN-60FR5734 60FR5734-00004, 60FR5734-4, GL-88-20, NUDOCS 9503090009
Download: ML17263A953 (4)


Text

RIDRIT'YZllWMMTaACCESSIONNBR:9503090009DOC.DATE:95/02/28NOTARIZED:NODOCKETFACIL:50-244RobertEmmetGin@aNuclearPlant,Unit1,RochesterG',05000244AUTH..NAMEAUTHORAFFILIATIONMECREDY,R.C.RochesterGas6ElectricCorp.REClP.NAMERECIPIENTAFFILIATIONNRC-NoDetailedAffiliationGiven

SUBJECT:

Commentsonproposedsuppl5toGL88-20rereductioninseismichazardtomajorityofUSNPP.RDISTRIBUTIONCODE:DS09DCOPIESRECEIVED:LTRENCLSIZE:TITLE:SECY/DSBDist:PublicCommentonProposedRule(PR)-MiscNotice;RegGNOTES:LicenseExpdateinaccordancewith10CFR2,2.109(9/19/72).05000244C)RECIPIENTIDCODE/NAMEINTERNAL~FILECENTE~1OGC/DR15-B-18RES/DSIRCOPIESLTTRENCLRECIPIENTIDCODE/NAMENMSS/IMOBT8F5RESDIRRES/FMPASCOPIESLTTRENCLEXTERNAL:NRCPDR02DuNYOTETOALL"RIDS"RECIPIENTS:.PLEASEHELPUSTOREDUCEO'ASTE!CONTACTTHEDOCUMENTCOYTROLDESK.ROOiiIPl-37(EXT.504-2033)TOELIMIYATEYOURiNAidEFRO!i!DISTRIBL.'TIOYLISTSFORDOCUKIEYTSYOUDON"INEED!TOTALNUMBEROFCOPIESREQUIRED:LTTR7ENCL 4NDirs'trROCHESTERGASANDELECTRICCORRORATION~89FASTAVENUE,ROCHESTER,N.Y14649-0001ARFACODE716546-2700ROBERTC.MECREDYVicePresidenthlvcleorOperationsl995HhR-7AIIto:3SRULESREV[EQc;DiR.BR.USHRCFebruary28,1995Chief,RulesReviewandDirectiveBranchU.S.NuclearRegulatoryCommissionWashington,D.C.20555

Subject:

CommentsProposedSupplement5toGL88-20R.E.GinnaNuclearPowerPlantDocketNo.50-244IDK>>'IloctFg,5>3$0I/Bo(cia0oh~KenThisletterprovidescommentsinresponsetotheFederalRegisterNotice(Vol.60Fed.Reg.5734-January30,1995NoticeofOpportunityofPublicComment)regardingthissubject.RG&EispleasedthattheNRChasacknowledgedthesignificantreductioninseismichazardtothemajorityofU.S.'nuclearpowerplants,includingGinnaStation,duetotherevisedLLNLmeanseismichazardcurves.ThisinformationwaspublishedinInformationNotice94-32,ERI/NRC94-502,ERI/NRC94-504,andcommentstothiseffectweremadeatthepublicworkshopheldonOctober21,1994.Wearedisappointed,however,bytheapparentlackofmeaningfulresponsebytheNRCtothissignificantnewinformation.Simplyremovingthereviewofsoil-structureinteractionandreactorvesselinternalsfromthescopeofIPEEE,whileanimportantimprovement,doesnotdojusticetothecomprehensiveinsightsdevelopedinthisareabyindustryandseismicexperts.RG&Eagreeswiththecomments,madebyNEIattheOctober21,1994workshopthat,inordertoresolvetheseismicissueforthemajorityofplants,emphasisshouldbeplacedonacomprehensiveseismicwalkdownandreviewbyateamofseismicandsystemsexperts.Insightgainedfromthisexperiencewillbefactoredintoutilitydecision-makingindefiningtheextent,ifany,ofresultantplantchanges.Becausethegenericletterdoesnotestablishanylegallybindingrequirementstogobeyondtheregulations,andbecausewefeelthatnoimportantadditionalinsightswillbegainedfromaseismicreviewaboveSSElevels,'G&Eassertsthatthiswalkdown/reviewshouldbeperformedatthedesignbasisSSE'forthesite(0.2gforGinna),thusalsoresultingintheresolutionofUSIA-46inanefficientmanner.9503090009950228PDRADGCK05000244HPDR

'AssuggestedintheFederalRegisterNotice,RG&EwillbeinformingtheNRCwithin60daysofthedateofthepublishedgenericletter,ofourintenttomodifyourIPEEEsubmittalschedule.ThedetailedmethodologyweproposetousetoimplementourIPEEEcommitmentswillbedescribedatthattime.Veryulyyours,GJW/371RobertC.Mecedyxc'r.AllenR.JohnsonAttn:DocumentControlDeskProjectDirectorateI-3Washington,D.C.20555U.S.NuclearRegulatoryCommissionRegionI475AllendaleRoadKingofPrussia,PA19406GinnaSeniorResidentInspector e*~~~I."k