ML12164A673

Tennessee Valley Authority - 90-Day Response to NRC Request for Information Pursuant to 10CFR50.54(f) Seismic Aspects of Recommendations 2.1 of the Near-Term Task Force Review of Insights from Fukushima Dai-ichi Accident

ML12164A673
Person / Time
Site:	Browns Ferry, Watts Bar, Sequoyah, Bellefonte
Issue date:	06/11/2012
From:	James Shea Tennessee Valley Authority
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML12164A673 (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 Bellefonte Nuclear Plant, Units 1 and 2 Construction Permit Nos. CPPR-122 and CPPR-123 NRC Docket Nos. 50-438 and 50-439 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 Watts Bar Nuclear Plant, Unit 2 Construction Permit No. CPPR-92 NRC Docket No. 50-391

Reference:

Tennessee Valley Authority (TVA) Day Response to NRC Request for Information Pursuant to Title 10 of the Code of Federal Regulations 50.54(f)

Regarding Seismic Aspects of Recommendation 2.1 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident 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 Printed on recycled paper

U.S. Nuclear Regulatory Commission Page 2 June 11, 2012 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 1 of Reference 1 contains specific Requested Actions, Requested Information, and Required Responses associated with Recommendation 2.1, Seismic Evaluations. Reference 1 requires that, if an addressee cannot meet the requested response date, it must provide a response to NRC within 90 days of the date of the information request describing the licensee's proposed alternative course of action, the basis for the acceptability of the proposed alternative course of action, and the estimated completion dates.

TVA will meet the requested response dates in Reference 1 for submitting the Seismic Hazard Evaluation provided that the NRC and industry reach a mutual understanding of critical implementation details associated with calculating the seismic hazard by the end of July 2012.

For example, the critical details that need to be mutually understood prior to commencement of the new seismic hazard evaluations including the elevation(s) at which the hazard/ground motion response spectra (GMRS) will be calculated.

Within 60 days of the NRC endorsement of the Screening, Prioritization and Implementation guidance, TVA will submit: (1) its intention to follow the endorsed guidance, or (2) provide an alternative approach. At that time, TVA will assess whether it can meet the submittal deadlines for the Seismic Risk Evaluation and take the appropriate regulatory action.

Because the response provided in this letter and the future responses discussed in this letter are required by Reference 1, they are considered to be regulatory requirements. 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.

Respe ly, J.

Shea arger, 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