ML073110441

Waterford Steam Electric Station, Unit 3, RAI, Request for Additional Information GL 2007-01, Inaccessible or Underground Power Cable Failures That Disable Accident Mitigation Systems or Cause Plant Transients

ML073110441
Person / Time
Site:	Waterford
Issue date:	11/20/2007
From:	Kalyanam N NRC/NRR/ADRO/DORL/LPLIV
To:	Walsh K T Entergy Operations
Kalyanam N, NRR/DORL/LP4, 415-1480
References
GL-07-004, TAC MD4395
Download: ML073110441 (4)

Text

November 20, 2007Mr. Kevin T. WalshVice President of Operations Entergy Operations, Inc.

17265 River Road Killona, LA 70057-3093

SUBJECT:

WATERFORD STEAM ELECTRIC STATION, UNIT 3 - REQUEST FORADDITIONAL INFORMATION ON THE NUCLEAR REGULATORY COMMISSION GENERIC LETTER 2007-01: INACCESSIBLE OR UNDERGROUND POWER CABLE FAILURES THAT DISABLE ACCIDENT MITIGATION SYSTEMS OR CAUSE PLANT TRANSIENTS (TAC NO. MD4395)

Dear Mr. Walsh:

The U.S. Nuclear Regulatory Commission (NRC) staff has received the cable failure history forWaterford Steam Electric Station, Unit 3 (Waterford 3), in response to Generic Letter (GL) 2007-01, "Inaccessible or Underground Power Cable Failures that Disable AccidentMitigation Systems or Cause Plant Transients." During its review, the licensee found failures of cables within the scope of Title 10 of the Code of Federal Regulations (10 CFR), Section 50.65,"Requirements for Monitoring the Effectiveness of Maintenance at Nuclear Power Plants" (Maintenance Rule). Please provide the type of cable insulation for the cable failures included in your response to GL 2007-01. Waterford 3 prepared its response using the Nuclear Energy Institute (NEI) guidance, providedin an industry letter dated March 16, 2007, "Guidance for Response to GL 2007-01." The NRC provided additional guidance on how licensees should determine which cable failures are within the scope of GL 2007-01 in the NRC letter dated April 13, 2007, from Michael J. Case (NRC) to James H. Riley (Nuclear Energy Institute) (Agencywide Documents Access and Management System (ADAMS) Accession No. ML070940311). Please discuss exceptions and/or deviations, if any, from thr NEI guidance, as supplemented by the NRC additional guidance. In addition, if Waterford 3's response to GL 2007-01 excluded cable failures based on the NEI guidance (i.e., not following NRC guidance in the NRC letter dated April 13, 2007), please provide the data for these failures as requested in GL 2007-01.

K. T. Walsh-2-Please provide the additional information requested within 30 days of the receipt of this letter.If you have any questions, please contact me at (301) 415-1480.Sincerely,/RA/N. Kalyanam, Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor RegulationDocket No. 50-382 cc: See next page

ML073110441NRR-088*No change from Staff provided RAIOFFICENRR/LPL4/PMNRR/LPL4/LANRR/DE/EEEB*NRR/LPL4/BCNAMENKalyanam:spJBurkhardtGWilsonJNDonohew forTHiltzDATE11/13/0711/9/0710/18/0711/20/07 September 2007Waterford Steam Electric Station, Unit 3 cc:Senior Vice President Entergy Nuclear Operations P.O. Box 31995 Jackson, MS 39286-1995Senior Vice President and COOEntergy Operations, Inc.

P.O. Box 31995 Jackson, MS 39286-1995Vice President, Operations Support Entergy Services, Inc.

P.O. Box 31995 Jackson, MS 39286-1995Site Vice PresidentWaterford Steam Electric Station, Unit 3 Entergy Operations, Inc.

17265 River Road Killona, LA 70057-3093General Manager, Plant OperationsWaterford Steam Electric Station, Unit 3 Entergy Operations, Inc.

17265 River Road Killona, LA 70057-3093Director, Nuclear Safety & LicensingEntergy Services, Inc.

440 Hamilton Avenue White Plains, NY 10601Director, Nuclear Safety AssuranceEntergy Operations, Inc.

17265 River Road Killona, LA 70057-3093Senior Manager, Nuclear Safety & Licensing Entergy Services, Inc.

P.O. Box 31995 Jackson, MS 39286-1995Manager, Licensing Entergy Operations, Inc.

17265 River Road Killona, LA 70057-3093Louisiana Department of Environmental Quality Radiological Emergency Planning and Response Division P.O. Box 4312 Baton Rouge, LA 70821-4312Louisiana Department of Environmental Quality Office of Environmental Compliance P.O. Box 4312 Baton Rouge, LA 70821-4312Parish President Council St. Charles Parish P.O. Box 302 Hahnville, LA 70057Chairman Louisiana Public Services Commission P.O. Box 91154 Baton Rouge, LA 70825-1697Richard Penrod, Senior Environmental Scientist/State Liaison Officer Office of Environmental Services Northwestern State University Russell Hall, Room 201 Natchitoches, LA 71497Resident InspectorWaterford NPS P.O. Box 822 Killona, LA 70057-0751Regional Administrator, Region IV U.S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011