ML11154A139

Information Presented in the May 11-12, 2011 Tva/Nrc Meeting Regarding Final Safety Analysis Report Section 2.4

ML11154A139
Person / Time
Site:	Watts Bar
Issue date:	06/01/2011
From:	Stinson D Tennessee Valley Authority
To:	Document Control Desk, Office of New Reactors
References
TAC ME3945
Download: ML11154A139 (2)

Text

Tennessee Valley Authority, Post Office Box 2000, Spring City, Tennessee 37381-2000 June 1, 2011 10 CFR 50.4 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555-0001 Watts Bar Nuclear Plant, Unit 2 Docket No. 50-391

Subject:

Information Presented in the May 11-12, 2011 TVA/NRC Meeting Regarding Final Safety Analysis Report Section 2.4

Reference:

TVA to NRC letter dated April 20, 2011, "Response to Request for Additional Information Regarding Final Safety Analysis Report Section 2.4 (TAC NO. ME3945)"

The purpose of this letter is for the Tennessee Valley Authority (TVA) to provide information presented in the TVAINRC meeting held May 11 and 12, 2011, regarding Final Safety Analysis Report Section 2.4. This information was requested by NRC's representative to the meeting, Mr. Dan Hoang. Enclosure 1 to this letter provides the TVA presentation, "Temporary Dams' Modification Project." Enclosures 2 and 3 provide the calculations discussed during the meeting, "PMF Temporary Modification Analysis," and "Seismic Evaluation of HESCO Baskets," respectively.

The Corrective Actions to Problem Evaluation Report (PER) 154477 were presented and discussed in the meeting. Enclosure 4 provides a summary of PER 154477.

If you have any questions, please contact Kevin Casey at (423) 751-8523.

I declare under the penalty of perjury that the foregoing is true and correct. Executed on the 1stday of June, 2011.

Respectfully, David Stinson Watts Bar Unit 2 Vice President

U.S. Nuclear Regulatory Commission Page 2 June 1, 2011

Enclosures:

1. Presentation Package, "Temporary Dams' Modification Project"

2. Calculation RSOFLHROGCDX00033320090003, "PMF Temporary Modification Analysis"

3. Calculation RSOGENROGCDX00033320110002, "Seismic Evaluation of HESCO Baskets"

4. Summary of Problem Evaluation Report 154477 cc (w/Enclosures 1 & 4 only):

U. S. Nuclear Regulatory Commission Region II Marquis One Tower 245 Peachtree Center Ave., NE Suite 1200 Atlanta, Georgia 30303-1257 Mr. Dan Hoang (w/Enclosures 1, 2, 3, and 4)

U.S. Nuclear Regulatory Commission O-09D3 11555 Rockville Pike Rockville, MD 20852-2738 NRC Resident Inspector Unit 2 Watts Bar Nuclear Plant 1260 Nuclear Plant Road Spring City, TN 37381