ML123380111

Flooding Walkdown Information Requested by NRC Letter, Request for Information Pursuant to 10CFR50.54(f) Re Recommendations 2.1, 2.3 and 9.3 of Near-Term Task Force Review of Insights from Fukushima Dai-ichi Accident

ML123380111
Person / Time
Site:	Oconee
Issue date:	11/27/2012
From:	Gillespie T Duke Energy Carolinas
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML123380111 (3)

Text

T. PRESTON GILLESPIE, Jr.

PDuke Vice President oEnergy Oconee Nuclear Station Duke Energy ON01 VP / 7800 Rochester Hwy.

Seneca, SC 29672 864-873-4478 864-873-4208 fax T.Gillespie@duke-energy.com November 27, 2012 10 CFR 50.54 (f)

U. S. Nuclear Regulatory Commission ATTN: Document Control Desk 11555 Rockville Pike Rockville, MD 20852

Subject:

Duke Energy Carolinas, LLC (Duke Energy)

Oconee Nuclear Station (ONS), Units 1, 2 and 3 Docket Nos. 50-269, 50-270, and 50-287 Flooding Walkdown Information Requested by NRC Letter, Request for Information Pursuantto Title 10 of the Code of FederalRegulations 50.54(0 Regarding Recommendations 2.1, 2.3, and 9.3, of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichiAccident; dated March 12, 2012

Reference:

1. NRC Letter, Request for Information Pursuantto Title 10 of the Code of FederalRegulations 50.54(0 Regarding Recommendations 2.1, 2.3, and 9.3, of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichiAccident, dated March 12, 2012

2. NEI 12-07, Guidelines for Performing Verification Walkdowns of Plant Flood Protection Features,Revision 0-A, dated May 2012 On March 12, 2012, the NRC staff issued a Request for Information in accordance with 10 CFR 50.54 (f) (Reference 1). Enclosure 4 of that document contains specific requests associated with Recommendation 2.3 for Flooding Walkdowns, which required a written response to be submitted within 90 days.

Duke Energy submitted its response on June 8, 2012, which in part, confirmed that Duke Energy would use the NRC endorsed industry guideline, NEI 12-07 (Reference 2), as the basis for performing flooding walkdowns at the Oconee Nuclear Station (ONS). In the June 8, 2012 response, Duke Energy further stated that a report documenting the results of the flooding walkdowns at ONS would be submitted by November 27, 2012.

Enclosure 1 addresses the information requested in Reference 1 regarding the Flooding Walkdown report as outlined in Appendix D of the NRC endorsed guidance, NEI 12-07.

Enclosure 1 Contains Security Sensitive Information - AoDogg- f Withhold from public disclosure under 10 CFR 2.390(d)(1)

Upon removal of Enclosure 1, this letter is uncontrolled. www.duke-energy.coni

United States Nuclear Regulatory Commission Oconee Flooding Walkdown Report November 27, 2012 Page 2 This letter contains no new regulatory commitments.

Should you have any questions concerning this letter, or require additional information, please contact David Haile at (864) 873-4742.

I declare under penalty of perjury that the foregoing is true and correct. Executed on November 27, 2012 Sincerely, T. P. Gillespie Jr., Vice President, Oconee Nuclear Station Enclosures

1. Flood Walkdown Report - NRC 50.54 (f) NTTF Recommendation 2.3 Enclosure 1 Contains Security Sensitive Information -

Withhold from public disclosure under 10 CFR 2.390(d)(1)

Upon removal of Enclosure 1, this letter is uncontrolled.

United States Nuclear Regulatory Commission Oconee Flooding Walkdown Report November 27, 2012 Page 3 xc:

Mr. Victor M. McCree,.Administrator, Region II U.S. Nuclear Regulatory Commission Marquis One Tower 245 Peachtree Center Ave., NE, Suite 1200 Atlanta, GA 30303-1257 Mr. Eric J. Leeds, Director, Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission One White Flint North, Mailstop 13-H16M 11555 Rockville Pike Rockville, MD 20852-2738 Mr. John P. Boska, Project Manager (ONS)

(By electronic mail only)

U. S. Nuclear Regulatory Commission One White Flint North, M/S O-8G9A 11555 Rockville Pike Rockville, MD 20852 NRC Senior Resident Inspector Oconee Nuclear Station