ML17059C199
| ML17059C199 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 08/07/1998 |
| From: | Hood D NRC (Affiliation Not Assigned) |
| To: | Mueller J NIAGARA MOHAWK POWER CORP. |
| References | |
| GL-97-04, GL-97-4, TAC-MA0013, TAC-MA13, NUDOCS 9808170174 | |
| Download: ML17059C199 (6) | |
Text
Mr. John H. Mueller Chief Nuclear Officer Niagara Mohawk Power Corporation Nine Mile Point Nuclear Station Operations Buildincl, Second Floor P.O. Box 63 Lycoming, NY 13093 August 7.
1998
SUBJECT:
REQUEST FOR ADDITIONALINFORMATIONRELATEDTO GENERIC LETTER 97-04, NINE MILEPOINT NUCLEARSTATION, UNIT NO. 1 (TAC NO. MA0013)
Dear Mr. Mueller.
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, Niagara Mohawk Power Corporation submitted its 90-day response to GL 97-04 for Nine Mile Point Nuclear Station, Unit No. 1 (NMP1).
The NRC staff has reviewed your response and is concerned that NMP1 may not be within its licensing bases because the containment overpressure needed to assure adequate NPSH appears to be 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 bases.
Ifyou should determine that NMP1 is outside of its licensing bases, the staff expects that you willcomply with the Commission's reporting regulations and take prompt action to modify your licensing bases as appropriate, or otherwise restore NMP1 to a condition consistent with the licensing bases.
Should you have any questions, please contact me by phone on (301) 415-3049 or by electronic mail at dsh@nrc.gov.
Sincerely, ORIGINAL SIGNED BY:
Darl S. Hood, Senior Project Manager Project Directorate I-1 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation Docket No. 50-220 cc: See next page DISTRIBUTION:
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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHIKQTOK, D.C. 205554001 August 7, 1998 IVlr. John H. Mueller Chief Nuclear Officer
'Niagara Mohawk Power Corporation Nine Mile Point Nuclear Station Operations Building, Second Floor P.O. Box 63 Lycoming, NY 13093
SUBJECT:
REQUEST FOR ADDITIONALINFORMATIONRELATEDTO GENERIC LETTER 97-04, NINE MlLEPOINT NUCLEAR STATION, UNITNO. 1 (TAC NO. MA0013)
Dear,
Mr. Mueller:
The NRC staff issued Generic Letter (GL) 97-04, "Assurance of Sufficient Net Positive Suction Head for Emergency Core Cooling and Containmerit Heat Removal Pumps," on October 7, 1997.
The GL requested that licensees p'rovide information necess'ary to confirm the adequacy of the net p'os!tive suction head (NPSH) available for emergency core cooling and containment heat removal pumps.
By'letter dated Jan'uary 5,.1998,;Niagara Mohawk Power Corporation submitted its 90-day response to GL 97-04 for Nine Mile Point Nuclear Station, Unit No. 1 (NMP1).
The NRC staff has reviewed your response and is concerned that NMP1 may not be within its licensing bases because the containment overpiessure needed to assure adequate NPSH appears to-be greater than.the'ov'erpressure 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 bases.
Ifyou should determine that NMP1 is outside of its licensing bases, the staff expects that you willcomply with the Commissiori's reporting regulations and take prompt a'ction to modify your licensing bases as appropriate, or otherviise restore NMP1 to'a condition consistent with the licensing bases.
Should you have any questions, please contact me by phone on (301) 415-3049 or by electronic mail at dsh@nrc.gov.
Sincerely, G~gl~
Darl S. Hood, Senior Project Manager Project Directorate l-1 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation Docket No. 50-220 cc: See next page
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John H. Mueller Niagara Mohawk Power Corporation Nine Mile Point Nuclear Station Unit No. 1 Regional Administrator, Region I
U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 Resident Inspector U.S. Nuclear Regulatory Commission P.O. Box 126 Lycoming, NY 13093 Charles Donaldson, Esquire Assistant Attorney General New York Department of Law 120 Broadway, New York, NY 10271 Mr. Paul D. Eddy State of New York Department of Public Service Power Division, System Operations 3 Empire State Plaza Albany, NY 12223 Mr. F. William Valentino, President New York State Energy, Research,
'nd Development Authority Corporate Plaza West 286 Washington Avenue Extension Albany, NY 12203-6399 Mark J. Wetterhahn, Esquire Winston 8 Strawn 1400 L Street, NW Washington, DC 20005-3502 Gary D. Wilson, Esquire Niagara Mohawk Power Corporation 300 Erie Boulevard West
- Syracuse, NY 13202 Supervisor Town of Scriba Route 8, Box 382 Oswego, NY 13126
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