ML051050484

RAI, Licensing Basis for Control of Heavy Loads

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

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.

Enclosure

Point Beach Nuclear Plant, Units 1 and 2 cc:

Jonathan Rogoff, Esquire Mr. Jeffery Kitsembel Vice President, Counsel & Secretary Electric Division Nuclear Management Company, LLC Public Service Commission of Wisconsin 700 First Street P.O. Box 7854 Hudson, WI 54016 Madison, WI 53707-7854 Mr. F. D. Kuester Nuclear Asset Manager President & Chief Executive Officer Wisconsin Electric Power Company WE Generation 231 West Michigan Street 231 West Michigan Street Milwaukee, WI 53201 Milwaukee, WI 53201 John Paul Cowan Regulatory Affairs Manager Executive Vice President & Chief Nuclear Point Beach Nuclear Plant Officer Nuclear Management Company, LLC Nuclear Management Company, LLC 6610 Nuclear Road 700 First Street Two Rivers, WI 54241 Hudson, WI 54016 Mr. Ken Duveneck Douglas E. Cooper Town Chairman Senior Vice President - Group Operations Town of Two Creeks Palisades Nuclear Plant 13017 State Highway 42 Nuclear Management Company, LLC Mishicot, WI 54228 27780 Blue Star Memorial Highway Covert, MI 49043 Chairman Public Service Commission Site Director of Operations of Wisconsin Nuclear Management Company, LLC P.O. Box 7854 6610 Nuclear Road Madison, WI 53707-7854 Two Rivers, WI 54241 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