ML12164A674

Response to NRC Request for Information Pursuant to Title 10 of the Code of Federal Regulations 50.54(f)

ML12164A674
Person / Time
Site:	Browns Ferry, Watts Bar, Sequoyah
Issue date:	06/11/2012
From:	James Shea Tennessee Valley Authority
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML12164A674 (3)

Text

Tennessee Valley Authority, 1101 Market Street, Chattanooga, Tennessee 37402 June 11, 2012 10 CFR 50.54(f)

U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555-0001 Browns Ferry Nuclear Plant, Units 1, 2, and 3 Facility Operating License Nos. DPR-33, DPR-52, and DPR-68 NRC Docket Nos. 50-259, 50-260, and 50-296 Sequoyah Nuclear Plant, Units 1 and 2 Facility Operating License Nos. DPR-77 and DPR-79 NRC Docket Nos. 50-327 and 50-328 Watts Bar Nuclear Plant, Unit 1 Facility Operating License No. NPF-90 NRC Docket No. 50-390

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 Flooding Aspects of Recommendation 2.3 of the Near-Term Task Force (NTTF) 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

2. NRC Letter, Endorsement of Nuclear Energy Institute (NEI) 12-07, "Guidelines for Performing Walkdowns of Plant Flooding Protection Features," dated May 31, 2012 [ADAMS Accession Number ML12144A142]

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 4 of Reference 1 contains specific Requested Actions, Requested Information, and Required Responses associated with Recommendation 2.3 for Flooding Walkdowns. This is TVA's 90 day consolidated fleet response to Reference 1 for all of its licensed operating plants (Browns Ferry Units 1, 2 and 3; Sequoyah Units 1 and 2; and Watts Bar Unit 1).

Printed on recycledpeper

U.S. Nuclear Regulatory Commission Page 2 June 11, 2012 For NTTF Recommendation 2.3: Flooding, Enclosure 4 of Reference 1 states that in accordance with 10 CFR 50.54(f), an addressee must respond as below, specifically:

Within 90 days of the date of this information request, the addressee will confirm that it intends to use the NRC-endorsed flooding walkdown procedures or provide the NRC a description of the process that will be used to conduct the walkdowns and to develop the needed information.

It is noted that, as stated in the cover letter for Reference 1, "information requests in Enclosures 3 and 4 are not applicable to holders of construction permits under 10 CFR 50."

Therefore the following response is not applicable to Bellefonte Units 1 and 2 or Watts Bar Unit 2.

As required by Reference 1, TVA confirms that it intends to use the flooding walkdown procedure (NEI 12-07, Guidelinesfor Performing Verification Walkdowns of Plant Flood Protection Features)endorsed by NRC as indicated in Reference 2 as the basis for the flooding walkdowns at Browns Ferry, Sequoyah and Watts Bar Unit 1.

TVA plans to comply with the response timeline in Enclosure 4 of Reference 1. Specifically, TVA will submit a report documenting the results of. its flooding design basis walkdowns at its licensed operating sites on November 27, 2012, which corresponds to 180 days after NRC endorsement of the generic guidance.

Because the response provided in this letter is required by Reference 1, it is considered to be a regulatory requirement. Therefore, this letter contains no regulatory commitments.

If you have questions regarding our comments, please telephone Fredrick Mashburn at (423)751-8817.

I declare under penalty of perjury that the foregoing is true and correct.

Executed on the 1 1th day of June 2012.

Relpec Ily, J W Shea an ger, Corporate Nuclear Licensing cc: See Page 3

U.S. Nuclear Regulatory Commission Page 3 June 11, 2012 cc:

NRC Regional Administrator - Region II NRR Director - NRC Headquarters NRC Senior Resident Inspector - Browns Ferry Nuclear Plant NRC Senior Resident Inspector - Sequoyah Nuclear Plant NRC Senior Resident Inspector - Watts Bar Nuclear Plant NRR Project Manager - Browns Ferry Nuclear Plant NRR Project Manager - Sequoyah Nuclear Plant NRR Project Manager - Watts Bar Nuclear Plant EDMS