ML092540513

Response to RAI NRC Generic Letter 2004-02, Potential Impact of Debris Blockage on Emergency Recirculation During Design Basis Accidents at Pressurize-Water Reactors Request for Submittal Schedule Extension

ML092540513
Person / Time
Site:	Surry
Issue date:	09/11/2009
From:	Hartz L N Virginia Electric & Power Co (VEPCO)
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
09-423A, GL-04-002
Download: ML092540513 (2)

Text

VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 September II, 2009U.S.Nuclear Regulatory Commission Attention:

DocumentControlDesk Washington,DC20555SerialNo.09-423A NLOS/GDM RODocketNos.50-280/281LicenseNos.

DPR-32/37 VIRGINIA ELECTRIC AND POWER COMPANY SURRY POWER STATIONUNITS1AND2 RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION NRC GENERIC LETTER 2004-02 POTENTIAL IMPACTOFDEBRIS BLOCKAGE ON EMERGENCY RECIRCULATION DURING DESIGN BASIS ACCIDENTS AT PRESSURIZED-WATER REACTORS REQUEST FOR SUBMITTAL SCHEDULE EXTENSIONInaletterdatedJune18,2009,theNuclear Regulatory Commission (NRC)transmittedarequestfor additionalinformation(RAI)regarding Dominion's previous responses toGL2004-02forSurryUnits1and2.TheRAIalsorequestedDominiontoprovideasafetycase describinghowthemeasurescreditedintheSurrylicensingbasis demonstrate compliancewiththe applicableregulationsas discussedinGL2004-02.DominionhascompleteditsresponsetotheRAIquestions.However, preparation ofthesafetycaserequestedbytheNRCinsupportoftheRAIresponseisstillbeing developed.

Whilewebelievethesafetycasehas,toalargeextent,beenmadein previous correspondence,aggregationofinformationandintegrationintoan explicitresponsehasnotbeen accomplished.Accordingly,Dominion respectfully requests a 30-day extensiontoensurethatthepreparedsafetycasecontains sufficientscopeandrigorto adequatelysatisfytheNRC's expectationsinthisareaandto complete theGL2004-02responseeffortforSurryPowerStation,withthe exceptionofthe outstanding downstreamfueleffectsissue.Shouldyouhaveany questionsorrequireadditionalinformation,pleasecontactMr.GaryD.Millerat(804)273-2771.

Sincerely,L.N.Hartz Vice-President

-Nuclear Support Services Commitmentsmadeinthis correspondence:

None cc:U.S.Nuclear Regulatory CommissionRegionIISamNunn AtlantaFederalCenter61ForsythStreet,SWSuite23T85Atlanta,Georgia30303 NRC Senior Resident Inspector Surry Power StationMs.K.R.CottonNRCProject ManagerU.S.Nuclear Regulatory Commission One WhiteFlintNorthMailStop16E1511555RockvillePikeRockville,MD 20852-2738Dr.V.Sreenivas NRC Project Manager-NorthAnnaU.S.Nuclear Regulatory Commission One WhiteFlintNorthMailStop8G9A11555RockvillePikeRockville,MD 20852-2738SerialNo.09-423ADocketNos.50-280/281Page2of2