ML063540757: Difference between revisions

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


==Dear Mr. Singer:==
==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:
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.
2.C.(15)
The licensee is required to confirm that the conclusions made in TVAs {{letter dated|date=September 17, 2004|text=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.
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.
Based on the information contained in your {{letter dated|date=December 4, 2006|text=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.
If you have any questions regarding this matter, I may be reached at 301-415-4041.
Sincerely,
Sincerely,
                                              /RA/
/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
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:
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. 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}}
Mr. Karl W. Singer BROWNS FERRY NUCLEAR PLANT Tennessee Valley Authority cc:
Mr. Ashok S. Bhatnagar, Senior Vice President Nuclear Operations Tennessee Valley Authority 6A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801 Mr. Larry S. Bryant, Vice President Nuclear Engineering & Technical Services Tennessee Valley Authority 6A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801 Brian OGrady, Site Vice President Browns Ferry Nuclear Plant Tennessee Valley Authority P.O. Box 2000 Decatur, AL 35609 Mr. Preston D. Swafford, Senior Vice President Nuclear Support Tennessee Valley Authority 6A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801 General Counsel Tennessee Valley Authority ET 11A 400 West Summit Hill Drive Knoxville, TN 37902 Mr. John C. Fornicola, General Manager Nuclear Assurance Tennessee Valley Authority 6A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801 Mr. Bruce Aukland, Plant Manager Browns Ferry Nuclear Plant Tennessee Valley Authority P.O. Box 2000 Decatur, AL 35609 Mr. Masoud Bajestani, Vice President 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 Mr. Larry S. Mellen Browns Ferry Unit 1 Project Engineer Division of Reactor Projects, Branch 6 U.S. Nuclear Regulatory Commission 61 Forsyth Street, SW.
Suite 23T85 Atlanta, GA 30303-8931 Ms. Beth A. Wetzel, Manager Corporate Nuclear Licensing and Industry Affairs Tennessee Valley Authority 4X Blue Ridge 1101 Market Street Chattanooga, TN 37402-2801 Mr. William D. Crouch, Manager Licensing and Industry Affairs Browns Ferry Nuclear Plant Tennessee Valley Authority P.O. Box 2000 Decatur, AL 35609 Senior Resident Inspector U.S. Nuclear Regulatory Commission Browns Ferry Nuclear Plant 10833 Shaw Road Athens, AL 35611-6970 State Health Officer Alabama Dept. of Public Health RSA Tower - Administration Suite 1552 P.O. Box 303017 Montgomery, AL 36130-3017 Chairman Limestone County Commission 310 West Washington Street Athens, AL 35611 Mr. Robert H. Bryan, Jr., General Manager Licensing and Industry Affairs Tennessee Valley Authority 4X Blue Ridge 1101 Market Street Chattanooga, TN 37402-2801}}

Latest revision as of 04:39, 15 January 2025

Letter, Closure of License Condition 2.C(15)
ML063540757
Person / Time
Site: Browns Ferry Tennessee Valley Authority icon.png
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)
v • d • e


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 Nuclear Operations Tennessee Valley Authority 6A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801 Mr. Larry S. Bryant, Vice President Nuclear Engineering & Technical Services Tennessee Valley Authority 6A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801 Brian OGrady, Site Vice President Browns Ferry Nuclear Plant Tennessee Valley Authority P.O. Box 2000 Decatur, AL 35609 Mr. Preston D. Swafford, Senior Vice President Nuclear Support Tennessee Valley Authority 6A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801 General Counsel Tennessee Valley Authority ET 11A 400 West Summit Hill Drive Knoxville, TN 37902 Mr. John C. Fornicola, General Manager Nuclear Assurance Tennessee Valley Authority 6A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801 Mr. Bruce Aukland, Plant Manager Browns Ferry Nuclear Plant Tennessee Valley Authority P.O. Box 2000 Decatur, AL 35609 Mr. Masoud Bajestani, Vice President 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 Mr. Larry S. Mellen Browns Ferry Unit 1 Project Engineer Division of Reactor Projects, Branch 6 U.S. Nuclear Regulatory Commission 61 Forsyth Street, SW.

Suite 23T85 Atlanta, GA 30303-8931 Ms. Beth A. Wetzel, Manager Corporate Nuclear Licensing and Industry Affairs Tennessee Valley Authority 4X Blue Ridge 1101 Market Street Chattanooga, TN 37402-2801 Mr. William D. Crouch, Manager Licensing and Industry Affairs Browns Ferry Nuclear Plant Tennessee Valley Authority P.O. Box 2000 Decatur, AL 35609 Senior Resident Inspector U.S. Nuclear Regulatory Commission Browns Ferry Nuclear Plant 10833 Shaw Road Athens, AL 35611-6970 State Health Officer Alabama Dept. of Public Health RSA Tower - Administration Suite 1552 P.O. Box 303017 Montgomery, AL 36130-3017 Chairman Limestone County Commission 310 West Washington Street Athens, AL 35611 Mr. Robert H. Bryan, Jr., General Manager Licensing and Industry Affairs Tennessee Valley Authority 4X Blue Ridge 1101 Market Street Chattanooga, TN 37402-2801

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