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'YZllWMMTaACCESSION NBR:9503090009 DOC.DATE:

95/02/28NOTARIZED:

NODOCKETFACIL:50-244 RobertEmmetGin@aNuclearPlant,Unit1,Rochester G',05000244AUTH..NAME AUTHORAFFILIATION MECREDY,R.C.

Rochester Gas6ElectricCorp.REClP.NAME RECIPIENT AFFILIATION NRC-NoDetailedAffiliation Given

SUBJECT:

Commentsonproposedsuppl5toGL88-20rereduction inseismichazardtomajorityofUSNPP.RDISTRIBUTION CODE:DS09DCOPIESRECEIVED:LTR ENCLSIZE:TITLE:SECY/DSBDist:PublicCommentonProposedRule(PR)-Misc Notice;Reg GNOTES:License Expdateinaccordance with10CFR2,2.109(9/19/72).

05000244C)RECIPIENT IDCODE/NAME INTERNAL~FILE CENTE~1OGC/DR15-B-18RES/DSIRCOPIESLTTRENCLRECIPIENT IDCODE/NAME NMSS/IMOB T8F5RESDIRRES/FMPAS COPIESLTTRENCLEXTERNAL:

NRCPDR02DuNYOTETOALL"RIDS"RECIPIENTS:.

PLEASEHELPUSTOREDUCEO'ASTE!CONTACTTHEDOCUMENTCOYTROLDESK.ROOiiIPl-37(EXT.504-2033)TOELIMIYATEYOURiNAidEFRO!i!DISTRIBL.'TIOY LISTSFORDOCUKIEYTS YOUDON"INEED!TOTALNUMBEROFCOPIESREQUIRED:

LTTR7ENCL 4NDirs'trROCHESTER GASANDELECTRICCORRORATION

~89FASTAVENUE,ROCHESTER, N.Y14649-0001 ARFACODE716546-2700ROBERTC.MECREDYVicePresident hlvcleorOperations l995HhR-7AIIto:3SRULESREV[EQc;DiR.BR.USHRCFebruary28,1995Chief,RulesReviewandDirective BranchU.S.NuclearRegulatory Commission Washington, D.C.20555

Subject:

CommentsProposedSupplement 5toGL88-20R.E.GinnaNuclearPowerPlantDocketNo.50-244IDK>>'IloctFg,5>3$0I/Bo(cia0oh~KenThisletterprovidescommentsinresponsetotheFederalRegisterNotice(Vol.60Fed.Reg.5734-January30,1995NoticeofOpportunity ofPublicComment)regarding thissubject.RG&EispleasedthattheNRChasacknowledged thesignificant reduction inseismichazardtothemajorityofU.S.'nuclearpowerplants,including GinnaStation,duetotherevisedLLNLmeanseismichazardcurves.Thisinformation waspublished inInformation Notice94-32,ERI/NRC94-502,ERI/NRC94-504,andcommentstothiseffectweremadeatthepublicworkshopheldonOctober21,1994.Wearedisappointed, however,bytheapparentlackofmeaningful responsebytheNRCtothissignificant newinformation.

Simplyremovingthereviewofsoil-structure interaction andreactorvesselinternals fromthescopeofIPEEE,whileanimportant improvement, doesnotdojusticetothecomprehensive insightsdeveloped inthisareabyindustryandseismicexperts.RG&Eagreeswiththecomments, madebyNEIattheOctober21,1994workshopthat,inordertoresolvetheseismicissueforthemajorityofplants,emphasisshouldbeplacedonacomprehensive seismicwalkdownandreviewbyateamofseismicandsystemsexperts.Insightgainedfromthisexperience willbefactoredintoutilitydecision-making indefiningtheextent,ifany,ofresultant plantchanges.Becausethegenericletterdoesnotestablish anylegallybindingrequirements togobeyondtheregulations, andbecausewefeelthatnoimportant additional insightswillbegainedfromaseismicreviewaboveSSElevels,'G&E assertsthatthiswalkdown/review shouldbeperformed atthedesignbasisSSE'forthesite(0.2gforGinna),thusalsoresulting intheresolution ofUSIA-46inanefficient manner.9503090009 950228PDRADGCK05000244HPDR

'Assuggested intheFederalRegisterNotice,RG&Ewillbeinforming theNRCwithin60daysofthedateofthepublished genericletter,ofourintenttomodifyourIPEEEsubmittal schedule.

Thedetailedmethodology weproposetousetoimplement ourIPEEEcommitments willbedescribed atthattime.Veryulyyours,GJW/371RobertC.Mecedyxc'r.AllenR.JohnsonAttn:DocumentControlDeskProjectDirectorate I-3Washington, D.C.20555U.S.NuclearRegulatory Commission RegionI475Allendale RoadKingofPrussia,PA19406GinnaSeniorResidentInspector e*~~~I."k