ML20196J247

Discusses Completion of Licensing Action for GL 97-04, Assurance of Sufficient Net Positive Suction Head for ECC & Containment Heat Removal Pumps,

ML20196J247
Person / Time
Site:	Cooper
Issue date:	06/29/1999
From:	Lawrence Burkhart NRC (Affiliation Not Assigned)
To:	Horn G NEBRASKA PUBLIC POWER DISTRICT
References
GL-97-04, GL-97-4, TAC-M99978, NUDOCS 9907070207
Download: ML20196J247 (3)

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June 29, 1999 Mr. G. R. Horn Sr. Vice President of Energy Supply Nebraska Public Power District 141415th Street l Columbus, NE 68601 l

SUBJECT:

COMPLETION OF LICENSING ACTION FOR GENERIC LETTER 97-04,

" ASSURANCE OF SUFFICIENT NET POSITIVE SUCTION HEAD FOR EMERGENCY CORE COOLING AND CONTAINMENT HEAT REMOVAL PUMPS," DATED OCTOBER 7,1997; COOPER NUCLEAR STATION, (TAC NO. M99978) j

Dear Mr. Horn:

On October 7,1997, the U.S. Nuclear Regulatory Commission (NRC) issued Generic Letter (GL) 97-04," Assurance of Sufficient Net Positive Suction Head for Emergency Core Cooling and Containment Heat Removal Pumps," to all holders of operating licenses or construction permits. By letter dated January 5,1998, Nebraska Public Power District (NPPD) provided Cooper Nuclear Station's response to GL 97-04. By letter dated August 14,1998, the staff requested additionalinformation with regard to the use of containment overpressure to ensure ,

adequate net positive suction head (NPSH) to the emergency core cooling (ECCS) pumps. {

NPPD responded to the staff's request by letter dated September 22,1998. By letter dated l November 24,1998, the staff stated that it did not agree with NPPD's conclusions and provided 1 its understanding of the Cooper licensing basis with regard to containment overpressure. By letter dated December 23,1998, NPPD responded to the staff's letter and committed to submit a license amendment request to permit containment overpressure to be credited in the ,

calculation of available NPSH for the ECCS pumps.

By letter dated June 15,1999, NPPD submitted a [equest for license amendment with regard to i the use of containment overpressure at Cooper Nuclear Station. The requested change involves the use of containment overpressure to ensure sufficient NPSH for the ECCS pumps following a design-basis loss-of-coolant accident (LOCA).

The staff has reviewed NPPD's submittals and supporting documentation. Based on this f review, the staff believes that NPPD has provided the information requested by GL 97-04.

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G. R. Horn June 29, 1999 Resolution of the amount of containment overpressure credit in the Cooper licensing basis will be completed under the license amendment request. Based on the information provided, the staff considers GL 97-04 closed for Cooper Nuclear Station.

If you have any questions regarding this matter, please contact me at (301) 415-3053 or ljb@nrc. gov.

Sincerely, ORIGINAL SIGNED BY Lawrence J. Burkhart, Project Manager, Section 1 Project Directorate IV & Decommissioning Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-298 cc: Ses next page DISTRIBUTION:

Docket File PUBLIC PDIV-1 Reading File JZwolinski/SBlack DSkay SRichards CMarschall, RIV KBrockman, RIV OGC ACRS JKudrick KKavanagh To receive a copy of this document, indicate "C" in the box OFFICE PDIV-1/PM D PDIV-D/LA C, PDIV-1/SC b NAME LBurkhart:db (h CJamerson (1ff RGramm h DATE' b /'13 /99 b / 87 /99[/ [p/M /99 DOCUMENT NAME: G:\PDIV-1\ COOPER \ltr99978.wpd

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Cooper Nuclear Station ec:

Mr. John R McPhail, General Counsel Ms. Cheryl Rogers, LLRW Program Nebraska Public Power District Manager P. O. Box 499 Division of Radiological Health Columbus, NE 68602-0499 Nebraska Department of Health 301 Centennial Mall, South Mr. J. H. Swailes, Vice President of P. O. Box 95007 Nuclear Energy Lincoln, NE 68509-5007 P. O. Box 98 Brownville, NE 68321 Mr. Ronald A. Kucera, Department Director of Intergovernmental Cooperation Mr. B. L. Houston, Nuclear Licensing Department of Natural Resources and Safety Manager P.O. Box 176 Nebraska Public Power District Jefferson City, MO 65102 P. O. Box 98 i Brownville, NE 68321 Senior Resident inspector U.S. Nuclear Regulatory Commission Dr. William D. Leech P. O. Box 218 Manager-Nuclear Brownville, NE 68321 MidAmerican Energy 907 Walnut Street Regional Administrator, Region IV P. O. Box 657 U.S. Nuclear Regulatory Commission Des Moines, IA 50303-0657 611 Ryan Plaza Drive, Suite 1000 Arlington,TX 76011 Mr. Ron Stoddard Lincoln Electric System 1040 0 Street P. O. Box 80869 Lincoln, NE 68501-0869 Mr. Michael J. Linder, Director Nebraska Department of Environmental Quality P. O. Box 98922 Lincoln, NE 68509-8922 l Chairman l Nemaha County Board of Commissioners Nemaha County Courthouse 1824 N Street Auburn, NE 68305 4

1 June 22,1999

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