ML12342A132

Tennessee Valley Authority (TVA) - Response to NRC Request for Information Pursuant to Title 10 of the Code of Federal Regulations 50.54(f) Regarding the Sequoyah Nuclear Plant Seismic Walkdown Results of Recommendation 2.3 of the Near-Term

ML12342A132
Person / Time
Site:	Sequoyah
Issue date:	11/27/2012
From:	James Shea Tennessee Valley Authority
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML12342A132 (2)

Text

Tennessee Valley Authority, 1101 Market Street, Chattanooga, Tennessee 37402 November 27, 2012 10 CFR 50.54(f)

U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555-0001 Sequoyah Nuclear Plant, Units 1 and 2 Facility Operating License Nos. DPR-77 and DPR-79 NRC Docket Nos. 50-327 and 50-328

Subject:

Tennessee Valley Authority (TVA) - Response to NRC Request for Information Pursuant to Title 10 of the Code of Federal Regulations 50.54(f) Regarding the Sequoyah Nuclear Plant Seismic Walkdown Results of Recommendation 2.3 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident

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 (ML12053A340)

2. NRC Letter, Endorsement of Electric Power Research Institute (EPRI) Draft Report 1025286, "Seismic Walkdown Guidance," dated May 31, 2012 (ML12145A529)

3. TVA Letter, Response to NRC Request for Information Pursuant to Title 10 of the Code of Federal Regulations 50.54(f) Regarding the Seismic Aspects for Recommendation 2.3 of the Near-Term Task Force (NTTF) Review of Insights from the Fukushima Dai-ichi Accident; dated July 10, 2012 (ML12193A509)

On March 12, 2012, the NRC issued Reference 1 to all power reactor licensees and holders of construction permits in active or deferred status. Enclosure 3 of Reference 1 contains specific Requested Actions, Requested Information, and Required Responses associated with Near Term Task Force (NTTF) Recommendation 2.3: Seismic.

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U.S. Nuclear Regulatory Commission Page 2 November 27, 2012 The Electric Power Research Institute (EPRI) subsequently developed guidance for the performance of seismic walkdowns, and the NRC endorsed this guidance on May 31, 2012 (Reference 2). On July 10, 2012, TVA provided a required response to item 1 in of Reference 1 (Reference 3), informing the NRC that it intended to perform the seismic walkdown in accordance with the EPRI guidance.

TVA has completed the seismic walkdown in accordance with the EPRI guidance. The purpose of this letter is to provide TVA's required response to item 2 in Enclosure 3 of Reference 1.

Specifically, Enclosures 1 and 2 of this letter provide the Seismic Walkdown Reports for the Sequoyah Nuclear Plant, Units 1 and 2, respectively. The areas that were unable to be inspected due to inaccessibility at Sequoyah Nuclear Plant, Unit 1, are described in Section 5.1 of Enclosure 1. There were no areas that were unable to be inspected due to inaccessibility at Sequoyah Nuclear Plant, Unit 2. to this letter contains a list of regulatory commitments.

Ifyou have questions regarding this matter, please contact Kevin Casey at (423) 751-8523.

I declare under penalty of perjury that the foregoing is true and correct. Executed on the 27th day of November 2012.

Respe ly, J. .Shea President, Nuclear Licensing

Enclosures:

1. Sequoyah Nuclear Plant, Unit 1, Fukushima Near-Term Task Force Recommendation 2.3: Seismic Response Report

2. Sequoyah Nuclear Plant, Unit 2, Fukushima Near-Term Task Force Recommendation 2.3: Seismic Response Report

3. List of Commitments cc: w/Enclosures NRC Regional Administrator - Region II NRR Director - NRC Headquarters NRC Senior Resident Inspector - Sequoyah Nuclear Plant NRR Project Manager - Sequoyah Nuclear Plant