ML061650179
| ML061650179 | |
| Person / Time | |
|---|---|
| Site: | Wolf Creek  |
| Issue date: | 06/23/2006 |
| From: | Donohew J Plant Licensing Branch III-2 |
| To: | Muench R Wolf Creek |
| Donohew J N, NRR/DLPM,415-1307 | |
| References | |
| TAC MD1649 | |
| Download: ML061650179 (3) | |
Text
June 23, 2006 Mr. Rick A. Muench President and Chief Executive Officer Wolf Creek Nuclear Operating Corporation Post Office Box 411 Burlington, KS 66839
SUBJECT:
WOLF CREEK GENERATING STATION - CLOSEOUT OF LICENSEE'S RESPONSE TO GENERIC LETTER 2006-03, "POTENTIALLY NONCONFORMING HEMYC AND MT FIRE BARRIER CONFIGURATIONS" (TAC NO. MD1649)
Dear Mr. Muench:
By letter dated May 31, 2006 (ET 06-0022), the Wolf Creek Nuclear Operating Corporation (the licensee) responded to Generic Letter (GL) 2006-03, "Potentially Nonconforming Hemyc and MT Fire Barrier Configurations," for the Wolf Creek Generating Station (WCGS). Under oath or affirmation, the licensee stated that it does not use either the Hemyc or MT fire barrier system for fire barrier separation of redundant post-fire safe shutdown trains. Instead, Darmatt KM-1 (predominant fire barrier material) and Thermo-Lag 330-1 (limited applications) are used for raceway fire barrier protection for these trains. It is also stated that both these fire protection materials meet 10 CFR Part 50, Appendix R, III.G requirements, as discussed in the WCGS Updated Safety Analysis Report, and have been installed consistent with industry fire testing, with unique configurations that are not directly bounded to tested configurations evaluated in accordance with GL 86-10, Supplement 1, "Fire Endurance Test Acceptance Criteria for Fire Barrier Systems Used to Separate Redundant Safe Shutdown Trains Within the Same Fire Area," dated March 25, 1994. This evaluation is to assure that the installed fire barrier systems provide the required level of fire protection. The fire-rated enclosures are inspected by the licensee every 18 months to ensure the ongoing integrity of the fire barriers.
Based on the letter dated May 31, 2006, the Nuclear Regulatory Commission (NRC) staff concludes that the fire barrier systems at WCGS, that separate redundant safe shutdown trains located within the same fire area, have been designed and installed in accordance with current NRC guidance. The basis for your conclusion that these fire barriers have been designed and installed in accordance with NRC guidance should be maintained on site and will be subject to inspection during the normal NRC inspection process. This letter closes out the NRC staff review of your response to GL 2006-03 for WCGS. If you have any questions regarding this letter, please contact me at 301-415-1307.
Sincerely,
/RA/
Jack Donohew, Senior Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-482 cc: See next page
Mr. Rick A. Muench June 23, 2006 President and Chief Executive Officer Wolf Creek Nuclear Operating Corporation Post Office Box 411 Burlington, KS 66839
SUBJECT:
WOLF CREEK GENERATING STATION - CLOSEOUT OF LICENSEE'S RESPONSE TO GENERIC LETTER 2006-03, "POTENTIALLY NONCONFORMING HEMYC AND MT FIRE BARRIER CONFIGURATIONS" (TAC NO. MD1649)
Dear Mr. Muench:
By letter dated May 31, 2006 (ET 06-0022), the Wolf Creek Nuclear Operating Corporation (the licensee) responded to Generic Letter (GL) 2006-03, "Potentially Nonconforming Hemyc and MT Fire Barrier Configurations," for the Wolf Creek Generating Station (WCGS). Under oath or affirmation, the licensee stated that it does not use either the Hemyc or MT fire barrier system for fire barrier separation of redundant post-fire safe shutdown trains. Instead, Darmatt KM-1 (predominant fire barrier material) and Thermo-Lag 330-1 (limited applications) are used for raceway fire barrier protection for these trains. It is also stated that both these fire protection materials meet 10 CFR Part 50, Appendix R, III.G requirements, as discussed in the WCGS Updated Safety Analysis Report, and have been installed consistent with industry fire testing, with unique configurations that are not directly bounded to tested configurations evaluated in accordance with GL 86-10, Supplement 1, "Fire Endurance Test Acceptance Criteria for Fire Barrier Systems Used to Separate Redundant Safe Shutdown Trains Within the Same Fire Area," dated March 25, 1994. This evaluation is to assure that the installed fire barrier systems provide the required level of fire protection. The fire-rated enclosures are inspected by the licensee every 18 months to ensure the ongoing integrity of the fire barriers.
Based on the letter dated May 31, 2006, the Nuclear Regulatory Commission (NRC) staff concludes that the fire barrier systems at WCGS, that separate redundant safe shutdown trains located within the same fire area, have been designed and installed in accordance with current NRC guidance. The basis for your conclusion that these fire barriers have been designed and installed in accordance with NRC guidance should be maintained on site and will be subject to inspection during the normal NRC inspection process. This letter closes out the NRC staff review of your response to GL 2006-03 for WCGS. If you have any questions regarding this letter, please contact me at 301-415-1307.
Sincerely,
/RA/
Jack Donohew, Senior Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-482 DISTRIBUTION PUBLIC LPLIV r/f cc: See next page RidsNrrDorl (CHaney/CHolden)
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QNguyen, DPR RidsNrrPMJDonohew RidsNrrLALFeizollahi RidsAcrsAcnwMailCenter RidsOgcRp RidsRegion4MailCenter (BJones)
SWeerakkody ACCESSION NO.: ML061650179 (letter changes checked with AFPB - jnd 06/20/06)
OFFICE NRR/LPL4/PM NRR/LPL4/LA AFPB/BC NRR/LPL4/BC NAME JDonohew LFeizollahi SWeerakkody DTerao DATE 06/16/06 06/20/06 06/19/2006 06/23/06 OFFICIAL RECORD COPY
February 2006 Wolf Creek Generating Station cc:
Jay Silberg, Esq.
Pillsbury Winthrop Shaw Pittman LLP 2300 N Street, NW Washington, D.C. 20037 Regional Administrator, Region IV U.S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011 Senior Resident Inspector U.S. Nuclear Regulatory Commission P.O. Box 311 Burlington, KS 66839 Chief Engineer, Utilities Division Kansas Corporation Commission 1500 SW Arrowhead Road Topeka, KS 66604-4027 Office of the Governor State of Kansas Topeka, KS 66612 Attorney General 120 S.W. 10th Avenue, 2nd Floor Topeka, KS 66612-1597 County Clerk Coffey County Courthouse 110 South 6th Street Burlington, KS 66839 Chief, Radiation and Asbestos Control Section Kansas Department of Health and Environment Bureau of Air and Radiation 1000 SW Jackson, Suite 310 Topeka, KS 66612-1366 Vice President Operations/Plant Manager Wolf Creek Nuclear Operating Corporation P.O. Box 411 Burlington, KS 66839 Supervisor Licensing Wolf Creek Nuclear Operating Corporation P.O. Box 411 Burlington, KS 66839 U.S. Nuclear Regulatory Commission Resident Inspectors Office/Callaway Plant 8201 NRC Road Steedman, MO 65077-1032