ML081820009

Request for Additional Information, Reactor Equipment Cooling System

ML081820009
Person / Time
Site:	Cooper
Issue date:	07/07/2008
From:	Lyon C NRC/NRR/ADRO/DORL/LPLIV
To:	Minahan S Nebraska Public Power District (NPPD)
Lyon, C F, NRR/DLPM, 415-2296
References
TAC MD8374
Download: ML081820009 (5)

Text

July 7, 2008 Mr. Stewart B. Minahan Vice President-Nuclear and CNO Nebraska Public Power District 72676 648A Avenue Brownville, NE 68321

SUBJECT:

COOPER NUCLEAR STATION - REQUEST FOR ADDITIONAL INFORMATION RE: REACTOR EQUIPMENT COOLING SYSTEM (TAC NO. MD8374)

Dear Mr. Minahan:

By application dated March 24, 2008, Nebraska Public Power District (NPPD, the licensee) requested the U.S. Nuclear Regulatory Commission (NRC) staff approval of an amendment to the Cooper Nuclear Station facility operating license and technical specifications (TSs) to revise TS Section 3.7.3, "Reactor Equipment Cooling (REC) System," to allow credit for the ability to align the service water (SW) system to the REC system.

The NRC staff reviewed the information provided in your application and determined that additional information is required in order to complete its review. Please provide a response to the enclosed questions by September 5, 2008.

The NRC staff considers that timely responses to requests for additional information help ensure sufficient time is available for staff review and contribute toward the NRC=s goal of efficient and effective use of staff resources. If circumstances result in the need to revise the requested response date, please contact me at (301) 415-2296.

Sincerely,

/RA by Michael T. Markley for/

Carl F. Lyon, Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-298

Enclosure:

Request for Additional Information cc w/encl: See next page

ML081820009 *memo dated OFFICE LPL4/PM LPL4/LA EEEB/BC LPL4/BC LPL4/PM NAME FLyon, MTM for GLappert GWilson* THiltz, MCT for FLyon, MTM for DATE 7/3/08 7/2/08 6/26/08 7/3/08 7/7/08

Cooper Nuclear Station cc:

Mr. Ronald D. Asche Mr. H. Floyd Gilzow President and Chief Executive Officer Deputy Director for Policy Nebraska Public Power District Missouri Department of Natural Resources 1414 15th Street P.O. Box 176 Columbus, NE 68601 Jefferson City, MO 65102-0176 Mr. Gene Mace Senior Resident Inspector Nuclear Asset Manager U.S. Nuclear Regulatory Commission Nebraska Public Power District P.O. Box 218 P.O. Box 98 Brownville, NE 68321 Brownville, NE 68321 Regional Administrator, Region IV Mr. John C. McClure U.S. Nuclear Regulatory Commission Vice President and General Counsel 612 E. Lamar Blvd, Suite 400 Nebraska Public Power District Arlington, TX 76011-4025 P.O. Box 499 Columbus, NE 68602-0499 Director, Missouri State Emergency Management Agency Mr. David Van Der Kamp P.O. Box 116 Licensing Manager Jefferson City, MO 65102-0116 Nebraska Public Power District P.O. Box 98 Chief, Radiation and Asbestos Brownville, NE 68321 Control Section Kansas Department of Health Mr. Michael J. Linder, Director and Environment Nebraska Department of Environmental Bureau of Air and Radiation Quality 1000 SW Jackson P.O. Box 98922 Suite 310 Lincoln, NE 68509-8922 Topeka, KS 66612-1366 Chairman Ms. Melanie Rasmussen Nemaha County Board of Commissioners Radiation Control Program Director Nemaha County Courthouse Bureau of Radiological Health 1824 N Street Iowa Department of Public Health Auburn, NE 68305 Lucas State Office Building, 5th Floor 321 East 12th Street Ms. Julia Schmitt, Manager Des Moines, IA 50319 Radiation Control Program Nebraska Health & Human Services R & L Mr. Keith G. Henke, Planner Public Health Assurance Division of Community and Public Health 301 Centennial Mall, South Office of Emergency Coordination P.O. Box 95007 930 Wildwood P.O. Box 570 Lincoln, NE 68509-5007 Jefferson City, MO 65102 September 2007

Cooper Nuclear Station cc:

Mr. Paul V. Fleming, Director of Nuclear Mr. John F. McCann, Director Safety Assurance Licensing, Entergy Nuclear Northeast Nebraska Public Power District Entergy Nuclear Operations, Inc.

P.O. Box 98 440 Hamilton Avenue Brownville, NE 68321 White Plains, NY 10601-1813 September 2007

OFFICE OF NUCLEAR REACTOR REGULATION REQUEST FOR ADDITIONAL INFORMATION RELATED TO REACTOR EQUIPMENT COOLING SYSTEM NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION DOCKET NO. 50-298 Section 4.0, of Attachment 1 of the License Amendment Request (LAR) states that the licensee has evaluated the effects of the increased heat on the Environmental Qualification (EQ) equipment in the Essential Core Cooling System (ECCS) rooms and determined that the resulting peak temperatures due to the proposed alignment would be bounded by the temperature of High Energy Line Break (HELB), and concluded that, since the EQ equipment is qualified to the HELB peak temperatures, the EQ of the electrical equipment in the ECCS pump rooms following a loss-of-coolant accident (LOCA) will be assured. The following additional information is needed by the NRC staff to complete its independent review:

1. Please provide numerical values of any changes in the normal environment, such as temperature, humidity, radiation due to this LAR.

2. Please provide numerical values of any changes in environmental conditions, such as temperature, pressure, humidity, radiation etc. during LOCA including profile comparison for temperature and pressure. Please confirm your conclusion that these profiles are bounding in meeting the requirements of Title 10 of the Code of Federal Regulations Section 50.49.

3. Please identify all EQ equipment that will be affected by this LAR. Confirm that no EQ equipment needs replacement and no new equipment is added to the EQ program related to this LAR.

Please provide detailed EQ evaluations, justifications, calculations, and comparisons for the above items 1, 2, and 3.