ML12171A010

90 Day Response to March 12, 2012 Information Request Regarding Flooding Aspects of Recommendations 2.1 and 2.3

ML12171A010
Person / Time
Site:	North Anna
Issue date:	06/11/2012
From:	Heacock D Dominion, Dominion Resources
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
12-207C
Download: ML12171A010 (3)

Text

Dominion Resources Services, Inc.

Innsbrook Technical Center . minN iEO 5000 Dominion Boulevard, 2SE, Glen Allen, VA 23060 June 11, 2012 U.S. Nuclear Regulatory Commission Serial No. 12-207C Attention: Document Control Desk NL&OS/WDC RO Washington, DC 20555 Docket Nos. 50-338/339 License Nos. NPF-4/7 VIRGINIA ELECTRIC AND POWER COMPANY NORTH ANNA POWER STATION UNITS 1 AND 2 90 DAY RESPONSE TO MARCH 12, 2012 INFORMATION REQUEST REGARDING FLOODING ASPECTS OF RECOMMENDATIONS 2.1 AND 2.3

References:

1. NRC Letter, Request for Information Pursuant to Title 10 of the Code of Federal Regulations 50.54(f) Regarding Recommendations 2.1, 2.3, and 9.3, of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident, dated March 12, 2012.

2. NRC Letter, Prioritization of Response Due Dates for Request for Information Pursuant to Title 10 of the Code of Federal Regulations 50.54(f) Regarding Flooding Hazard Reevaluations for Recommendation 2.1 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident, dated May 11, 2012.

3. NRC Letter, Endorsement of Nuclear Energy Institute (NEI) 12-07, "Guidelines For Performing Verification Walkdowns of Plant Flood Protection Features," dated May 31, 2012.

On March 12, 2012, the Nuclear Regulatory Commission (NRC) issued Reference 1 to all power reactor licensees and holders of construction permits in active or deferred status.

Enclosures 2 and 4 of Reference 1 contain specific Requested Actions, Requested Information, and Required Responses associated with Recommendations 2.1 and 2.3 for Flooding Reevaluations and Walkdowns. This letter provides the Virginia Electric and Power Company (Dominion) 90 day response to Reference 1 for North Anna Power Station (NAPS)

Units 1 and 2.

Recommendation 2.1: Flooding The response date for NAPS's flood hazard reevaluation was identified in Reference 2 as March 12, 2013 which corresponds to one year from the date of Reference 1. Dominion plans to comply with the specified response date.

Dominion plans to meet the specified date for the other required responses in Enclosure 2 of Reference 1. Specifically, an approach for developing an Integrated Assessment for NAPS will be submitted 60 days after the NRC endorses Integrated Assessment Guidance. In addition, an Integrated Assessment report for NAPS, if it is necessary, will be submitted two years after the flood hazard reevaluation is submitted.

Recommendation 2.3: Flooding For flooding Recommendation 2.3 (walkdowns), Enclosure 4 of Reference 1 states that each licensee is to confirm that it will use the NRC-endorsed flooding walkdown procedure or

Serial No. 12-207C Docket Nos. 50-338/339 Page 2 of 3 provide a description of the process it will use. Dominion confirms that it will use the NRC-endorsed flooding walkdown procedure (NEI 12-07, Guidelines for Performing Verification Walkdowns of Plant Flood ProtectionFeatures)endorsed by Reference 3 as the basis for the flooding walkdowns at NAPS.

Dominion plans to comply with the response timeline in Enclosure 4 of Reference 1.

Specifically, Dominion will submit a report documenting the results of its flooding design basis walkdowns at NAPS by November 27, 2012, which corresponds to 180 days after NRC endorsement of the generic guidance.

If you have any questions regarding this information for the resolution of Recommendations 2.1 and 2.3, please contact Mr. Thomas Shaub at (804) 273-2763.

Sincerely, David A. Heacock President and Chief Nuclear Officer Virginia Electric and Power Company VICKI L.HULL Notary Public Commonwealth of Virginia 140542 My Commission Expires May 31. 2014 COMMONWEALTH OF VIRGINIA ) .

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COUNTY OF HENRICO )

The foregoing document was acknowledged before me, in and for the County and Commonwealth aforesaid, today by David A. Heacock, who is President and Chief Nuclear Officer of Virginia Electric and Power Company. He has affirmed before me that he is duly authorized to execute and file the foregoing document in behalf of that company, and that the statements in the document are true to the best of his knowledge and belief.

Acknowledged before me this =Zfday of J ,2012.

My Commission Expires:

Noitar Public y/

Commitments made in this letter: No new regulatory commitments

Serial No. 12-207C Docket Nos. 50-338/339 Page 3 of 3 cc: U.S. Nuclear Regulatory Commission, Region II Regional Administrator 245 Peachtree Center Ave. NE Suite 1200 Atlanta, Georgia 30303-1257 Dr. V. Sreenivas Project Manager U.S. Nuclear Regulatory Commission One White Flint North, Mail Stop 08 G-9A 11555 Rockville Pike Rockville, MD 20852-2738 K. R. Cotton Project Manager U.S. Nuclear Regulatory Commission One White Flint North, Mail Stop 08 G-9A 11555 Rockville Pike Rockville, MD 20852-2738 NRC Senior Resident Inspector North Anna Power Station J. E. Reasor, Jr.

Old Dominion Electric Cooperative Innsbrook Corporate Center, Suite 300 4201 Dominion Blvd.

Glen Allen, Virginia 23060