ML080950371

Surry, North Anna, Millstone and Kewaunee, Generic Letter 2007-01, Inaccessible or Underground Power Cable Failures That Disable Accident Mitigation Systems or Cause Plant Transients; Response to Request for Additional Information

ML080950371
Person / Time
Site:	Millstone, Kewaunee, Surry, North Anna
Issue date:	04/04/2008
From:	Bischof G T Dominion, Dominion Energy Kewaunee, Dominion Nuclear Connecticut, Dominion Resources Services, Virginia Electric & Power Co (VEPCO)
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
07-0268A, GL-07-001
Download: ML080950371 (3)

Text

Dominion Resources Services, Inc.')(J(J(J Dominion Boulevard, Glen Allen, VA:')r 1(" i\X'ch Address: www.dom.com April 4, 2008.,--, DOlllinion Attn: Document Control Desk United States Nuclear Regulatory Commission Washington,D.C.20555-0001SerialNo.NL&OSITJSDocketNos.

License Nos.07-0268A RO 50-280,281 50-338,339 50-336,423 50-305 DPR-32,37 NPF-4,7 DPR-65 NPF-49 DPR-43 VIRGINIA ELECTRIC AND POWER COMPANY DOMINION NUCLEAR CONNECTICUT, INC.DOMINION ENERGY KEWAUNEE, INC.SURRY POWER STATIONUNITS1AND2 NORTH ANNA POWER STATIONUNITS1AND2 MILLSTONE POWER STATIONUNITS2AND3 KEWAUNEE POWER STATION GENERIC LETTER 2007-01, INACCESSIBLE OR UNDERGROUND POWER CABLE FAILURES THAT DISABLE ACCIDENT MITIGATION SYSTEMS OR CAUSE PLANT TRANSIENTS; RESPONSE TO REQUEST FOR ADDITIONAL INFORMATIONOnMay 7,2007, Virginia ElectricandPowerCompany, Dominion Nuclear Connecticut,Inc.and DominionEnergyKewaunee,Inc.(collectively, Dominion)provided a responsetoNRC Generic Letter 2007-01, Inaccessible or Underground Power Cable Failures that Disable Accident Mitigation SystemsorCausePlant Transients, issued February 7, 2007.That response was prepared in accordancewiththe Nuclear Energy Institute(NEI)March 16,2007 industry letter (Guidance for ResponsetoGL 2007-01).TheNRC provided additional guidanceonhowto determinewhichcable failureswerewithinthescopeofthe generic letterinanNRC lettertoNEIdatedApril13,2007.

On January16,2008,theNRC forwarded by electronicmaila Request for Additional Information (RAI)concerningourGL2007-01response.TheNRC specifically requested: "Confirmthatthehistorywaspreparedin accordancewithNRC guidance.If Dominion's responsetoGL2007-01excludedcable failuresbasedontheNEI guidance(i.e.,not followingtheNRC quidance),providethedatafor these failures as requestedinGL 2007-01."

SerialNo.07-0268ADocketNos.

50-280/281,338/339, 336/423, 305Page2of3AsrequestedbytheabovereferencedRAI,DominionconfirmsthatourMay7,2007responsetoGL2007-01(SerialNo.07-0268)waspreparedin accordancewiththeNEI guidanceandislikewise consistentwiththeguidance subsequentlyissuedbyNRCletterdatedApril13,2007fromM.

J.Case(NRC)to J.H.Riley(NEI).No additionaldegradedcableshavebeenidentified.

Please contactMr.David A.Sommersat(804)273-2823ifyouhaveany questions or require additional information.

Sincerely, Vice President-Nuclear EngineeringVirginiaElectricandPowerCompany Dominion NuclearConnecticut,Inc.DominionEnergyKewaunee,Inc.

COMMONWEALTHOFVIRGINIACOUNTYOFHENRICOTheforegoing documentwasacknowledgedbeforeme,inandfortheCountyand Commonwealthaforesaid,todaybyGerald 1.Bischof,whoisVicePresident-NuclearEngineeringofVirginiaElectricandPowerCompany,DominionNuclearConnecticut,Inc.andDominionEnergyKewaunee,Inc.Hehasaffirmedbeforemethatheisdulyauthorizedtoexecuteandfiletheforegoing documentinbehalfoftheseCompanies,andthatthestatementsinthedocumentaretruetothebestofhisknowledgeandbelief.

IJ}l1Acknowledgedbeforemethis f=day of>,-;/j?l/'/,2008.*1 ,MyCommissionExpires:

II (At 2/;s2()I:.../;(':'J:;.;(JILti£Attachments:

NoneNotaryPublic Commitmentsmadeinthisletter:Nonecc:U.S.NuclearRegulatoryCommissionRegionI 475 Allendale RoadKingofPrussia,PA19406-1415U.S.NuclearRegulatoryCommissionRegionIISamNunnAtlantaFederalCenter61ForsythStreet,S.W.,Suite23T85Atlanta,GA30303-8931 VICKIL.HULL Notary PublICCommonwealth of VIrginial.au 1_CommllllOn Ixplfel May S1.2010 SerialNo.07

-0268A Docket Nos.50-280/281, 338/339, 336/423, 305Page3of3U.S.NuclearRegulatoryCommissionRegionIII 2443 WarrenvilleRoad,Suite210Lisle,IL 60532-4352 NRC Senior Resident InspectorSurryPowerStation NRC Senior Resident InspectorNorthAnnaPowerStation NRC Senior Resident InspectorMillstonePowerStationUnits2and3 NRC Senior Resident InspectorKewauneePowerStationMr.J.D.HugheyNRCProject ManagerMillstoneUnits2and3U.S.NuclearRegulatoryCommission,MailStopOWFN 08-83 One WhiteFlintNorth11555RockvillePikeRockville,MD 20852-2738Mr.S.P.LingamNRCProject Manager SurryU.S.NuclearRegulatoryCommission,MailStopOWFN 08-G9A One WhiteFlintNorth11555RockvillePikeRockville,MD 20852-2738Mr.R.A.JerveyNRCProject ManagerNorthAnnaU.S.NuclearRegulatoryCommission,MailStopOWFN 08-G9A One WhiteFlintNorth11555RockvillePikeRockville,MD 20852-2738Ms.M.H.Chernoff NRC SeniorProjectManagerKewauneeU.S.NuclearRegulatoryCommission,MailStopOWFN08-H4A11555RockvillePikeRockville,MD 20852-2738