ML053610088

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Flooding Significance Determination Process Risk Assessment Update Report
ML053610088
Person / Time
Site: Kewaunee Dominion icon.png
Issue date: 12/16/2005
From: Gaffney M
Dominion, Dominion Energy Kewaunee
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
05-795, KPS/LIC/RR:RO
Download: ML053610088 (3)


Text

Dominion Energy Kewaunee, Inc.

N490Highway 42, Kewaunee, WI 54216-9511 As' Dominion DEC 1-6 2005 U. S. Nuclear Regulatory Commission Serial No..05-795 Attention: Document Control Desk KPS/LIC/RR: RO Washington, DC 20555 Docket'No. 50-305 License No. DPR-43 DOMINION ENERGY KEWAUNEE, INC.

KEWAUNEE POWER STATION FLOODING SIGNIFICANCE DETERMINATION PROCESS RISK ASSESSMENT UPDATE REPORT Nuclear Regulatory Commission (NRC) Inspection Report 05000305/2005011 documented a potential failure of multiple safety related equipment trains during internal flooding events. The NRC provided Dominion Energy Kewaunee, Inc.

(DEK) with a preliminary significance determination for the performance deficiency and offered DEK an opportunity to present DEK's perspectives on the potential failure.

DEK's perspectives were provided to the NRC in an October 31, 2005 letter to the NRC and presented at a Regulatory Conference held on November 8, 2005. The NRC requested additional information. Attached is the requested information.

If you have questions or require additional information, please feel free to contact Mr. Tom Breene at 920-388-8599.

Very truly yours, Michael G. et Site Vice President, ewaunee Power Station Attachment Commitments made by this letter: NONE

Serial No.05-795 Page 2 of 2 cc: Mr. J. L. Caldwell Administrator, Region U. S. Nuclear Regulatory Commission Region IlIl 2443 Warrenville Road Suite 210 Lisle, Illinois 60532-4352 Mr. D. H. Jaffe Project Manager U.S. Nuclear Regulatory Commission Mail Stop 0-7-D-1 Washington, D. C. 20555 Mr. S. C. Burton NRC Senior Resident Inspector Kewaunee Power Station

Serial No.05-795 Attachment 1 FLOODING SIGNIFICANCE DETERMINATION PROCESS RISK ASSESSMENT UPDATE REPORT DOMINION ENERGY KEWAUNEE, INC.