ML051050484
| ML051050484 | |
| Person / Time | |
|---|---|
| Site: | Point Beach  |
| Issue date: | 04/15/2005 |
| From: | Raghavan L NRC/NRR/DLPM/LPD3 |
| To: | Koehl D Nuclear Management Co |
| Padovan L, NRR/DLPM, 415-1423 | |
| References | |
| TAC MC6729 | |
| Download: ML051050484 (4) | |
Text
April 15, 2005 Mr. Dennis Koehl Site Vice President Point Beach Nuclear Plant Nuclear Management Company, LLC 6610 Nuclear Road Two Rivers, WI 54241-9516
SUBJECT:
POINT BEACH NUCLEAR POWER PLANT, UNIT 2 - REQUEST FOR ADDITIONAL INFORMATION REGARDING LICENSING BASIS FOR CONTROL OF HEAVY LOADS (TAC NO. MC6729)
Dear Mr. Koehl:
During a planned inspection of your reactor vessel head replacement activities, the U.S.
Nuclear Regulatory Commission (NRC) regional inspectors asked to review the head-drop analysis for the replacement head. In response, by letter dated April 12, 2005, you provided clarification of your licensing basis for control of heavy loads associated with the containment polar cranes and reactor vessel head replacement activities. On April 12, 2005, we requested you to provide information regarding adequate protection of public health and safety during the reactor vessel head movement activities. Subsequently, the NRC staff has had several telephone discussions with you regarding this subject.
The NRC staff has identified in the enclosure specific information needed to ensure adequate protection of public health and safety during the reactor vessel head movement activities.
These questions were emailed to you on April 14, 2005. This letter documents these questions.
Aldo Capristo of your staff agreed to provide responses to these questions by April 15, 2005.
If you have any questions regarding this matter, please call me at (301) 415-2429 or your Project Manager at (301) 415-4018.
Sincerely,
/RA/
L. Raghavan, Chief, Section 1 Project Directorate III Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-301
Enclosure:
As stated cc w/encl: See next page
ML051050484 Pat Louden concurrence by phone 4/15/05 OFFICE PM:PDIII-1 PM:PDIII-1 LA:PDIII-1 SC:PDIII-1 NAME MPadovan HChernoff DClarke LRaghavan DATE 4/15/05 4/15/05 4/15/05 4/15/05
Enclosure Point Beach Nuclear Plant, Unit 2 Clarification of Licensing Basis for Control of Heavy Loads Request for Additional Information Docket No. 50-301 Question 1 Is a reactor vessel head-drop analysis within the plant's current licensing basis? Please explain the basis for your position.
Question 2 Please explain how you have evaluated the potential for a head drop, and discuss your acceptance criteria.
Question 3 Provide a risk assessment based on the best information on initiating event frequency for a head-drop event. This assessment could be based on the WESTEC assessment, NUREG 1774, A Survey of Crane Operating Experience at U.S. Nuclear Power Plants from 1968 through 2002, or other sources with technically-justified and explained adjustments based on Point Beach-specific information.
Question 4 If Point Beach intends to rely on the WESTEC assessment, please submit it to the NRC to be placed on your plant docket.
Question 5 Discuss the mitigation strategies and measures that are in place, or will be put in place, prior to the proposed head lift. This should include a discussion of how these strategies and measures are implemented. This discussion does not need to be limited to just the "worst case" scenario, and could include any available additional information concerning consequences of the head-drop evaluation that the NRC may use to broaden its understanding of likely head-drop scenarios.
Point Beach Nuclear Plant, Units 1 and 2 cc:
Jonathan Rogoff, Esquire Vice President, Counsel & Secretary Nuclear Management Company, LLC 700 First Street Hudson, WI 54016 Mr. F. D. Kuester President & Chief Executive Officer WE Generation 231 West Michigan Street Milwaukee, WI 53201 Regulatory Affairs Manager Point Beach Nuclear Plant Nuclear Management Company, LLC 6610 Nuclear Road Two Rivers, WI 54241 Mr. Ken Duveneck Town Chairman Town of Two Creeks 13017 State Highway 42 Mishicot, WI 54228 Chairman Public Service Commission of Wisconsin P.O. Box 7854 Madison, WI 53707-7854 Regional Administrator, Region III U.S. Nuclear Regulatory Commission 801 Warrenville Road Lisle, IL 60532-4351 Resident Inspector's Office U.S. Nuclear Regulatory Commission 6612 Nuclear Road Two Rivers, WI 54241 Mr. Jeffery Kitsembel Electric Division Public Service Commission of Wisconsin P.O. Box 7854 Madison, WI 53707-7854 Nuclear Asset Manager Wisconsin Electric Power Company 231 West Michigan Street Milwaukee, WI 53201 John Paul Cowan Executive Vice President & Chief Nuclear Officer Nuclear Management Company, LLC 700 First Street Hudson, WI 54016 Douglas E. Cooper Senior Vice President - Group Operations Palisades Nuclear Plant Nuclear Management Company, LLC 27780 Blue Star Memorial Highway Covert, MI 49043 Site Director of Operations Nuclear Management Company, LLC 6610 Nuclear Road Two Rivers, WI 54241