ML17059C558
| ML17059C558 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 02/17/1999 |
| From: | Bajwa S NRC (Affiliation Not Assigned) |
| To: | Mueller J NIAGARA MOHAWK POWER CORP. |
| Shared Package | |
| ML17059C559 | List: |
| References | |
| TAC-MA2148, NUDOCS 9902230138 | |
| Download: ML17059C558 (10) | |
Text
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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 February 17, 1999 Mr. John H. Mueller Chief Nuclear Officer Niagara Mohawk Power Corporation Nine Mile Point Nuclear Station Operations Building, Second Floor Lycoming, NY 13093
SUBJECT:
GENERAL VALVERELIEF REQUEST-01 FOR THE SECOND INTERVAL
'NSERVICE PUMP ANDVALVETESTING PROGRAM PLAN, NINE MILEPOINT NUCLEAR STATION, UNIT2 (TAC NO. MA2148)
Dear Mr. Mueller:
By letter dated June.16, 1998, Niagara Mohawk Power Corporation (NMPC) submitted its second ten-year Inservice Testing (IST) Program Plan for pumps and valves at Nine Mile Point Nuclear Station, Unit 2 (NMP2).Section III of the IST Program Plan (pages 36-39) includes a general relief request, GVRR-01, for se'ries check valves without intermediate test connections for which you find the requirements of Part 10 of the American National Standards Institute/American Society of Mechanical Engineers (ASME) "Operations and Maintenance Standards" (OIVI-10) to be impractical. The series check valves in this configuration are system pressure pump discharge check valves (2 High Pressure Core Spray (CSH)*P2 to CSH Header 2CSH V17, 'V55; 2 Low Pressure Core Spray (CSL) *P2 to CSL Header 2CSL V14,
- V21; 2 Residual Heat Removal (RHS) 'V47, *V48; 2RHS*P2 to valves 2RHS*V60, *V61, and
- V17, *V18). The function of these valves is to prevent diversion of emergency core cooling system (ECCS) flow by preventing reverse flowfrom the ECCS discharge path into the associated pressure pump discharge piping. NMPC tests these valves in accordance with the guidance in NUREG-1482, "Guidelines for Inservice Testing at Nuclear Power Plants,"
paragraph 4.1.1, "Closure Verification For Series Check Valves Without Intermediate Test Connections," and you request relief consistent with the NRC Recommendation in that paragraph.
NMPC proposes to test each pair of series check valves quarterly as a unit for reverse flowclosure and to apply the test results of each set to both valves of the set.
The NRC staff has reviewed the proposed GVRR-01 against the requirements of the 1989 Edition of Section XI of the ASME Boiler and Pressure Vessel Code (ASME Code) pursuant to 10 CFR 50.55a.
Enclosed is the NRC staff's safety evaluation which concludes that imposition of the ASME Code requirements would result in hardship without a compensating increase in the level of quality and safety, and authorizes GVRR-01 pursuant to 10 CFR 50.55a(a)(3)(ii) on the basis that NMPC's proposed alternatives provide reasonable assurance of operational readiness.
This NRC staff approval applies to the second ten-year IST interval for the above-specified NMP2 valves.
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lfyou have any questions regarding this matter, please contact Darl Hood by phone on (301) 415-3049 or by electronic mail at dsh@nrc.gov.
Sincerely, S. Singh Bajwa, Director Project Directorate I-1 Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-410
Enclosure:
Safety Evaluation ccw/encl: See next page
, J. Mufller February 17, 19qg 2>>
Ifyou have any questions regarding this matter, please contact Darl Hood by phone on (301) 415-3049 or by electronic mail at dsh@nrc.gov.
Sincerely, Original signed by:
Docket No. 50-410
Enclosure:
Safety Evaluation ccw/encl: See next page DISTRIBUTION:
S. Singh Bajwa, Director Project Directorate I-1 Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket File PUBLIC PDI-1 R/F J. Zwolinski S. Bajwa S. Little D. Hood R. Norsworthy (e-mail SE only to RCN)
OGC D. Terao G. Hill ACRS B. McCabe C. Hehl, Rl T. Cerovski DOCUMENT NAME: G:>NMP2>RELA2148
- See previous concurrence To receive a copy of this document, indicate in the box: "C" = Copy without enclosures "E".= Co with enclosures "N"= No co OFFICE NAME DATE'M:PDI-1 DHood/rsl &X 0 /
/99 LA:PDI S ittl
/99 D:PDI-1 SBa'wa 0
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, J. Mueller February 17, 1 y@ Ifyou have any questions regarding this matter, please contact Darl Hood by phone on (301) 415-3049 or by electronic mail at dsh@nrc.gov.
Sincerely, Original signed hy:
Docket No. 50-410
Enclosure:
Safety Evaluation ccw/encl: See next page DISTRIBUTION:
S. Singh Bajwa, Director Project Directorate I-1 Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket File PUBLIC PDI-1 R/F J. Zwolinski S. Bajwa S. Little D. Hood R. Norsworthy (e-mail SE only to RCN)
OGC D. Terao G. Hill ACRS B. McCabe C. Hehl, Rl T. Cerovski DOCUMENT NAME: G:FNMP2>RELA2148
- See previous concurrence To receive a copy of this document, indicate in the box: "C" = Copy without enclosures "E" = Co with enclosures "N" = No co OFFICE PM:PDI-1 LA:PDI D:PDI-1 OGC*
NAME DATE DHood/rsl~
0 /
/99 SBa wa 0
l /99 S ittl
/99 OFFICIAL RECORD COPY MYoun 02/04/99
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, John H. Mueller biragara Mohawk Power Corporation Nine Mile Point Nuclear Station Unit No. 2 Regional Administrator, Region I U. S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 Resident Inspector Nine Mile Point Nuclear Station P.O. Box 126 Lycoming, NY 13093 Mr. Jim Rettberg NY State Electric & Gas Corporation Corporate Drive Kirkwood Industrial Park P.O. Box 5224 Binghamton, NY 13902-5224 Mr. John V. Vinquist, MATS Inc.
P.O. Box 63 Lycoming, NY 13093 Supervisor Town of Scriba Route 8, Box 382 Oswego, NY 13126 Mr. Richard Goldsmith Syracuse University College of Law E.l. White Hall Campus
- Syracuse, NY 12223 Charles Donaldson, Esquire Assistant Attorney General New York Department of Law 120 Broadway New York, NY 10271 Mr. Timothy S. Carey
.Chair and Executive Director State Consumer Protection Board 5 Empire State Plaza, Suite 2101 Albany, NY 12223 Mark J. Wetterhahn, Esquire Winston & Strawn 1400 L Street, NW.
Washington, DC 20005-3502 Gap D. Wilson, Esquire Niagara Mohawk Power Corporation 300 Erie Boulevard West
- Syracuse, NY 13202 Mr. F. WilliamValentino, President New York State Energy, Research, and, Development Authority Corporate Plaza West 286 Washington Avenue Extension Albany, NY 12203-6399
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