ML063550049
| ML063550049 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 01/09/2007 |
| From: | Chernoff M NRC/NRR/ADRO/DORL/LPLII-2 |
| To: | Singer K Tennessee Valley Authority |
| Chernoff M, NRR/DORL, 415-4041 | |
| References | |
| GL-03-001, TAC MB9776, TAC MB9777, TAC MB9778 | |
| Download: ML063550049 (4) | |
Text
January 9, 2007 Mr. Karl W. Singer Chief Nuclear Officer and Executive Vice President Tennessee Valley Authority 6A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801
SUBJECT:
BROWNS FERRY NUCLEAR PLANT, UNITS 1, 2 AND 3, REQUEST FOR ADDITIONAL INFORMATION REGARDING GENERIC LETTER 2003-01, CONTROL ROOM HABITABILITY (TAC NOS. MB9776, MB9777, AND MB9778)
Dear Mr. Singer:
By letter dated December 8, 2003, Tennessee Valley Authority submitted a response to U.S.
Nuclear Regulatory Commission (NRC) Generic Letter 2003-01, "Control Room Habitability."
Based on our review of your submittal, the NRC staff finds that a response to the enclosed request for additional information is needed before we can complete our review.
This request was discussed with Mr. Russell Thompson of your staff on January 5, 2007, and it was agreed that a response would be provided within 30 days of the issuance of this letter.
If you have any questions, please contact me 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 Nos. 50-259, 50-260, and 50-296
Enclosure:
Request for Additional Information cc w/encl: See next page
ML063550049 NRR-088 OFFICE LPL2-2/PM LPL2-2/PM LPL2-2/LA AFPB/BC LPL2-2/BC NAME EBrown MChernoff BClayton RDenning by Memo dated BMozafari for LRaghavan DATE 1/5/07 1/5/07 1/5/07 12 / 18 /06 1/9/07
Enclosure REQUEST FOR ADDITIONAL INFORMATION REGARDING GENERIC LETTER (GL) 2003-01:
CONTROL ROOM HABITABILITY TENNESSEE VALLEY AUTHORITY BROWNS FERRY NUCLEAR PLANT, UNITS 1, 2 AND 3 DOCKET NOS. 50-259, 50-260, AND 50-296 In a December 8, 2003, letter, Tennessee Valley Authority (TVA) responded to questions concerning Generic Letter (GL) 2003-01, Control Room Habitability. TVA stated that Technical Specification (TS) surveillance requirement (SR) 3.7.3.4 calls for periodic testing of each Control Room Emergency Ventilation subsystem to verify that a Control Room Habitability Zone (CRHZ) pressure of greater than 0.125 inch water gauge can be maintained. TVA stated that this SR quantifies the CRHZ unfiltered in-leakage, that this testing has been performed on a periodic basis since 1991, and that the testing is adequate to demonstrate CRHZ integrity such that no TS changes are required.
Additional information concerning the complex testing/in-leakage quantification testing is required in order for the staff to complete its review of GL 2003-01 Item 1c. Provide information about this testing in sufficient detail such that the Nuclear Regulatory Commission staff is able to evaluate and determine if it is an acceptable method to demonstrate control room envelope integrity as described in Regulatory Guide 1.197 Demonstrating Control Room Envelope Integrity At Nuclear Power Reactors and Nuclear Energy Institute document, NEI 99-03 Control Room Habitability Assessment Guidance.
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