ML20237C569
| ML20237C569 | |
| Person / Time | |
|---|---|
| Site: | Cooper  |
| Issue date: | 08/14/1998 |
| From: | Hall J NRC (Affiliation Not Assigned) |
| To: | Horn G NEBRASKA PUBLIC POWER DISTRICT |
| References | |
| GL-97-04, GL-97-4, TAC-M99978, NUDOCS 9808210276 | |
| Download: ML20237C569 (3) | |
Text
,
f Mr. G. R. Hom -
August 14, 1998 1
Sr.Vice President of Energy Supply Nebraska Public Power District 141415th Street
' Columbus, NE 68601 -
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION RELATED TO GENERIC LETTER 97 COOPER NUCLEAR STATION (TAC NO. M99978)
Dear Mr. Hom:
{
The NRC staff issued Generic Letter (GL) 97-04, " Assurance of Sufficient Net Positive Suction Head for Emergency Core Cooling and Contdnment Heat Removal Pumps" on October 7,1997.
The GL requested that licensees provide information necessary to confirm the adequacy of the net positive suction head (NPSH) available for emergency core cooling and containment heat l
removal pumps. By letter dated January 5,1998, the Nebraska Public Power District submitted its 90-day response to GL 97-04.
The NRC staff has reviewed your response and is concemed that the Cooper Nuclear Station
'(CNS) may not be within its licensing basis because it appears that the containment overpressure needed to assure adequate NPSH is greater than the overpressure previously approved by the NRC staff. Please provide a response within 30 days discussing how your response to GL 97-04 related to containment overpressure compares with your current licensing basis. If it is determined that CNS is outside of its licensing basis, the staff expects that you will take prompt action to modify your licensing basis as appropriate in accordance with the regulations, or otherwise restore the facility to a condition consistent with the licensing basis.
Should you have any questions, please contact me at 301-415-1336.
j Sincerely, ORIGINAL SIGNED BY:
D. Wigginton for l
James R. Hall, Senior Project Manager Project Directorate IV-1 l
Division of Reactor Projects ill/lV Office of Nuclear Reactor Regulation Docket No. 50-298 '
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.,,g August 14, 1998 Mr. G. R. Hom Sr. Vice President of Energy Supply Nebraska Public Power District 141415th Street Columbus, NE 68601
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION RELATED TO GENERIC LETTER 97 COOPER NUCLEAR STATION (TAC NO. M99978)
Dear Mr. Hom:
I The NRC staff issued Generic Letter (GL) 97-04," Assurance of Sufficient Net Positive Suction Head for Emergency Core Cooling and Containment Heat Removal Pumps" on October 7,1997.
The GL requested that licensees provide information necessary to confirm the adequacy of the net positive suction head (NPSH) available for emergency core cooling and containment heat removal pumps. By letter dated January 5,1998, the Nebraska Public Power District submitted its 90-day response to GL 97-04.
The NRC staff has reviewed your response and is concemed that the Cooper Nuclear Station (CNS) may not be within its licensing basis because it appears that the containment overpressure needed to assure adequate NPSH is greater than the overpressure previously approved by the NRC staff. Please provide a response within 30 days discussing how your response to GL 97-04 related to containment overpressure compares with your current licensing basis. If it is determined that CNS is outside of its licensing basis, the staff expects that you will take prompt action to modify your licensing basis as appropriate in accordance with the regulations, or otherwise restore the facility to a condition consistent with the licensing basis.
Should you have any 7uestions, please contact me at 301-415-1336.
Sincerely,
's James R.
al, Senior Project Manager l
Project Directorate IV-1 Division of Reactor Projects lil/IV Office of Nuclear Reactor Regulation Docket No. 50-298 cc: See next page l
I
~
Mr. G. R. Hom Nebraska Public Power District Cooper Nuclear Station cc:
Mr. John R McPhall, General Counsel Lincoln Electric System Nebraska Public Power District ATTN: Mr. Ron Stoddard P. O. Box 499 1040 O Street Columbus, NE 68602-0499 Box 80869 Lincoln,NE 68501 Nebraska Public Power District l
ATTN: Mr.J. H. Swalles MidAmerican Energy Vice President of Nuclear Energy ATTN: Dr. William D. Leech, Manager-Nuclear P. O. Box 98 907 Walnut Street Brownville, NE 68321 P. O. Box 657 Des Moines, IA 50303-0657 s Randolph Wood, Director Nebraska Department of Environmental Nebraska Public Power District Control.
ATTN: Mr. B. L. Houston, Nuclear P. O. Box 98922 Licensing & Safety Manager Lincoln, NE 68509-8922 P. O. Box 98 Brownville, NE 68321 Mr. Larry Bohlken Chairman Nemaha County Board of Commissioners Nemaha County Courthouse 1824 N Street Aubum, NE 68305 Senior Resident inspector U.S. Nuclear Regulatory Commission P. O. Box 218 Brownville, NE 68321 Regional Administrator, Region IV U.S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 1000 Arlington,TX 76011 Ms. Cheryl Rogers, LLRW Program Manager Division of Radiological Health Nebraska Department of Health 301 Centennial Mall, South P. O. Box 95007 Lincoln, NE 68509-5007 Mr. Ronald A. Kucera, Department Director of Intergovemmental Cooperation Department of Natural Resources P.O. Box 176 Jefferson City, MO 65102 l
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