ML081220131
| ML081220131 | |
| Person / Time | |
|---|---|
| Site: | Columbia  |
| Issue date: | 05/02/2008 |
| From: | Lyon C NRC/NRR/ADRO/DORL/LPLIV |
| To: | Parrish J Energy Northwest |
| Lyon, C F, NRR/DLPM, 415-2296 | |
| References | |
| TAC MD6176 | |
| Download: ML081220131 (4) | |
Text
May 2, 2008 Mr. J. V. Parrish Chief Executive Officer Energy Northwest P.O. Box 968 (Mail Drop 1023)
Richland, WA 99352-0968
SUBJECT:
COLUMBIA GENERATING STATION - REQUEST FOR ADDITIONAL INFORMATION RELATED TO LICENSE AMENDMENT REQUEST ASSOCIATED WITH CONDENSATE STORAGE TANK LEVEL (TAC NO. MD6176)
Dear Mr. Parrish:
By letter dated August 8, 2007, as supplemented by letter dated November 19, 2007, to the U.S.
Nuclear Regulatory Commission (NRC), Energy Northwest submitted a license amendment request for Columbia Generating Station to revise the requirements of Technical Specification (TS) 3.3.5.2, Reactor Core Isolation Cooling (RCIC) System Instrumentation, and TS 3.5.2, ECCS [Emergency Core Cooling System]-Shutdown, to increase the Condensate Storage Tank (CST) level.
The NRC staff is reviewing your submittal and has determined that additional information is required to complete its review. The specific information requested is addressed in the enclosure to this letter. Please provide a response by June 6, 2008, to this request for additional information.
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 NRCs 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/
Carl F. Lyon, Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-397
Enclosure:
As stated cc w/encl: See next page
- Memo dated OFFICE NRR/LPL4/PM NRR/LPL4/LA SBPB/BC NRR/LPL4/BC NAME FLyon GLappert DHarrison*
THiltz DATE 5/1/08 5/1/08 4/24/08 5/2/08
Columbia Generating Station (11/26/2007) cc:
Chairman Energy Facility Site Evaluation Council P.O. Box 43172 Olympia, WA 98504-3172 Mr. Gregory V. Cullen Manager, Regulatory Programs Energy Northwest P.O. Box 968, Mail Drop PE20 Richland, WA 99352-0968 Chairman Benton County Board of Commissioners P.O. Box 190 Prosser, WA 99350-0190 Mr. William A. Horin, Esq.
Winston & Strawn 1700 K Street, N.W.
Washington, DC 20006-3817 Mr. Matt Steuerwalt Executive Policy Division Office of the Governor P.O. Box 43113 Olympia, WA 98504-3113 Ms. Lynn Albin Washington State Department of Health P.O. Box 7827 Olympia, WA 98504-7827 Technical Services Branch Chief FEMA Region X 130 - 228th Street, SW Bothell, WA 98021-9796 Mr. Mike Hammond Department of Homeland Security FEMA/REP 130 - 228th Street SW Bothell, WA 98021-9796 Regional Administrator, Region IV U.S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011-4005 Senior Resident Inspector U.S. Nuclear Regulatory Commission P.O. Box 69 Richland, WA 99352-0069 Mr. Ken Niles Assistant Director Oregon Department of Energy 625 Marion Street NE Salem, OR 97301-3737 Special Hazards Program Manager Washington Emergency Management Div.
127 W. Clark Street Pasco, WA 99301
REQUEST FOR ADDITIONAL INFORMATION RELATED TO LICENSE AMENDMENT REQUEST ASSOCIATED WITH CONDENSATE STORAGE TANK LEVEL ENERGY NORTHWEST COLUMBIA GENERATING STATION DOCKET NUMBER 50-397
- 1. The application dated August 8, 2007, states The level switches are not connected to directly to the CSTs but rather on a standpipe located downstream on the suction line in the reactor building Please provide a drawing or sketch showing/illustrating the arrangement of the switches and standpipe.
- 2. The application dated August 8, 2007, states Thus, they are influenced by such factors as differential head between the tank and the standpipe (due primarily to flow losses), reactor building temperature, and reactor building pressure. Previously, the calculation did not address the head loss that occurs in the switches when the HPCS pump is drawing water from the CST Please provide either:
- a. A copy of the calculation that determined the new levels for the sensors, or
- b. A description/summary of the calculation describing the methodology, assumptions and significant parameters (e.g., pressures, temperatures, etc.). The description should be sufficient to support simplified confirmatory calculations by the staff.