ML063540757

Letter, Closure of License Condition 2.C(15)

ML063540757
Person / Time
Site:	Browns Ferry
Issue date:	12/22/2006
From:	Chernoff M NRC/NRR/ADRO/DORL/LPLII-2
To:	Singer K Tennessee Valley Authority
Chernoff M, NRR/DORL, 415-4041
References
Download: ML063540757 (3)

Text

December 22, 2006 Mr. Karl W. Singer Chief Nuclear Officer and Executive Vice President Tennessee Valley Authority 64 Lookout Place 1101 Market Street Chattanooga, TN 37402-2801

SUBJECT:

BROWNS FERRY NUCLEAR PLANT, UNIT 1 - ACKNOWLEDGMENT OF UNIT 1 TURBINE BUILDING SEISMIC RUGGEDNESS COMPLETION OF LICENSE CONDITION 2.C(15)

Dear Mr. Singer:

By letter to the U.S. Nuclear Regulatory Commission (NRC) dated December 4, 2006, the Tennessee Valley Authority (the licensee) submitted a letter documenting that License Condition 2.C(15) of the Renewed Facility Operating License issued on May 4, 2006, has been met. The license condition states:

2.C.(15) The licensee is required to confirm that the conclusions made in TVAs letter dated September 17, 2004, for the turbine building remain acceptable using seismic demand accelerations based on dynamic seismic analysis prior to the restart of Unit 1.

The condition originates from the issuance of Amendment No. 251 for unit 1, regarding full-scope implementation of alternative source term. In the Safety Evaluation, dated September 27, 2004, the NRC staff found that methods and assumptions for calculating seismic capacity and demands of the turbine building were approximate and reasonable. The license condition was established because the capacity/demand ratio was as low as 1.11 for the frame in the north-south direction, and several approximations were used in both assumptions and hand calculations.

Based on the information contained in your December 4, 2006 letter, the tests and analyses required for meeting license condition 2.C(15) have been performed and this license condition has been satisfied.

If you have any questions regarding this matter, I may be reached at 301-415-4041.

Sincerely,

/RA/

Margaret H. Chernoff, Senior Project Manager Plant Licensing Branch II-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-259 cc: See next page

ML063540757 NRR-106 OFFICE LPL2-2 LPL2-2 LPL2-2/LA LPL2-2/BC NAME MGutierrez MChernoff BClayton LRaghavan DATE 12/21/06 12/22/06 12/21/06 12/22/06 Mr. Karl W. Singer BROWNS FERRY NUCLEAR PLANT Tennessee Valley Authority cc:

Mr. Ashok S. Bhatnagar, Senior Vice President Mr. Larry S. Mellen Nuclear Operations Browns Ferry Unit 1 Project Engineer Tennessee Valley Authority Division of Reactor Projects, Branch 6 6A Lookout Place U.S. Nuclear Regulatory Commission 1101 Market Street 61 Forsyth Street, SW.

Chattanooga, TN 37402-2801 Suite 23T85 Atlanta, GA 30303-8931 Mr. Larry S. Bryant, Vice President Nuclear Engineering & Technical Services Ms. Beth A. Wetzel, Manager Tennessee Valley Authority Corporate Nuclear Licensing 6A Lookout Place and Industry Affairs 1101 Market Street Tennessee Valley Authority Chattanooga, TN 37402-2801 4X Blue Ridge 1101 Market Street Brian OGrady, Site Vice President Chattanooga, TN 37402-2801 Browns Ferry Nuclear Plant Tennessee Valley Authority Mr. William D. Crouch, Manager P.O. Box 2000 Licensing and Industry Affairs Decatur, AL 35609 Browns Ferry Nuclear Plant Tennessee Valley Authority Mr. Preston D. Swafford, Senior Vice President P.O. Box 2000 Nuclear Support Decatur, AL 35609 Tennessee Valley Authority 6A Lookout Place Senior Resident Inspector 1101 Market Street U.S. Nuclear Regulatory Commission Chattanooga, TN 37402-2801 Browns Ferry Nuclear Plant 10833 Shaw Road General Counsel Athens, AL 35611-6970 Tennessee Valley Authority ET 11A State Health Officer 400 West Summit Hill Drive Alabama Dept. of Public Health Knoxville, TN 37902 RSA Tower - Administration Suite 1552 Mr. John C. Fornicola, General Manager P.O. Box 303017 Nuclear Assurance Montgomery, AL 36130-3017 Tennessee Valley Authority 6A Lookout Place Chairman 1101 Market Street Limestone County Commission Chattanooga, TN 37402-2801 310 West Washington Street Athens, AL 35611 Mr. Bruce Aukland, Plant Manager Browns Ferry Nuclear Plant Mr. Robert H. Bryan, Jr., General Manager Tennessee Valley Authority Licensing and Industry Affairs P.O. Box 2000 Tennessee Valley Authority Decatur, AL 35609 4X Blue Ridge 1101 Market Street Mr. Masoud Bajestani, Vice President Chattanooga, TN 37402-2801 Browns Ferry Unit 1 Restart Browns Ferry Nuclear Plant Tennessee Valley Authority P.O. Box 2000 Decatur, AL 35609 Mr. Robert G. Jones, General Manager Browns Ferry Site Operations Browns Ferry Nuclear Plant Tennessee Valley Authority P.O. Box 2000 Decatur, AL 35609