ML17059C601
| ML17059C601 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 04/02/1999 |
| From: | Bajwa S NRC (Affiliation Not Assigned) |
| To: | Mueller J NIAGARA MOHAWK POWER CORP. |
| Shared Package | |
| ML17059C602 | List: |
| References | |
| TAC-MA5052, NUDOCS 9904070082 | |
| Download: ML17059C601 (10) | |
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Ps tpp**4 Mr.'ohn H. Mueller Chief Nuclear Officer Niagara Mohawk Power Corporation Nine Mile Point Nuclear Station Operations Building, Second Floor Lycoming, NY 13093 UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON. D.C. 2055&0001 April 2, 1999
Dear Mr. Mueller:
SUBJECT:
ALTERNATIVEGVRR-6 REGARDING INSERVICE TESTING OF SAFETY AND RELIEF VALVES IN STEAM OR COMPRESSIBLE FLUIDSERVICE, NINE MILE POINT NUCLEAR STATION, UNIT NO. 2 (TAC NO. MA5052)
In a letter dated March 24, 1999, Niagara Mohawk Power Corporation (NMPC) proposed an alternative to the Inservice Testing (IST) requirements in Section Xl of the American Society of Mechanical Engineers Boiler and Pressure Vessel Code (ASME Code) for Nine Mile Point Nuclear Station, Unit No. 2 (NMP2).'he proposed alternative, designated as GVRR-6, results from Section XI's reference to the Operations and Maintenance Standard Part 10 (OM-10) for IST of valves, which further states that relief valve testing is to be performed in accordance with OM-1987, Part 1 (OM-1). OM-1 specifies the use of a minimum accumulator size for relief valve testing. You proposed an alternative to the minimum accumulator volume requirements of OM-1 paragraphs 4.1.1.2 and 4.1.2.2.
The NRC staff has reviewed the proposed alternative against the requirements of the 1989 Edition of Section XI of the ASME Code pursuant to Title 10 of the Code of Federal
~Rs ulations (10 CFR) Section 50.55a.
The results of the review are provided in the enclosed safety evaluation (SE). The Nuclear Regulatory Commission (NRC) staff finds that your
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proposed alternative provides an acceptable level of quality and safety, and therefore, the proposed alternative to the accumulator volume requirements of OM-1 paragraphs 4.1.1.2 and 4.1.2.2 is authorized pursuant to 10 CFR 50.55a(a)(3)(i).
This alternative is authorized for NMP2's second 10-year IST interval and for the remainder of NMP2's operating life.
NMPC also requested that this same alternative be authorized for NMP2's first 10-year IST interval. NMPC states that a one-year extension of the 10-year interval is allowed by the ASME Code and that provision willbe used to extend NMP2's first 10-year interval until April5, 1999. The NRC staff, however, does not agree that NMP2's Code of record for the first 10-year interval (1983 Edition of the ASME Code,Section XI) allows a 1-year extension of the first 10-year IST interval. Since the second 10-year IST interval for NMP2 (which began on April6, 1998) is currently in effect, no alternative authorization is required. The NRC staff finds that the NMPC's proposed alternative, authorized above, that was also used during the first 10-year interval, provided an acceptable level of quality and safety to the requirements of Section XI of the ASME Code during the first 10-year interval. Accordingly, the NRC staff concludes that the relief valve testing performed during the first 10-year interval constitutes a technically adequate and valid test to determine relief valve set-pressure and to ensure valve operability.
9904070082 990402 PDR ADGCK 050004i0 P..-.-'DR U cvv~&
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J. Mueller 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, S. Singh Bajwa, Chief, Section 1
Project Directorate I
Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-410
Enclosure:
Safety Evaluation ccw/encl: See next page
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April 2, 1999 J. Mueller 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 cc w/encl: See next page S. Singh Bajwa, Chief, Section 1
Project Directorate I
Division of Licensing Project Management Office of Nuclear Reactor Regulation DISTRIBUTION:
Docket File PUBLIC PDI-1 R/F J. Zwolinski/S. Black S. Bajwa S. Little D. Hood R. Norsworthy (e-mail SE only to RCN)
OGC D. Terao, G. Hill (2)
M. Kotzalas ACRS G. Shear A. Blough, Rl DOCUMENT NAME: G:ENMP2iRELA5052.WPD
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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-SC:PDI-1 OGC SBa'wa 04/
/99 DATE 04/ Z /99 04/
/99 OFFICIALRECORD COPY NAME DHood/rsl Wys~
S Little 04/8-/99
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April 2, 1999 J. Mueller 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 SIPPED BY;:
Docket No. 50-410
Enclosure:
Safety Evaluation cc w/encl: See next page S. Singh Bajwa, Chief, Section 1
Project Directorate I
Division of Licensing Project Management Office of Nuclear Reactor Regulation DISTRIBUTION:
/Do.cket F~ile PUBLIC PDI-1 R/F J. Zwolinski/S. Black S. Bajwa S. Little D. Hood R..Norsworthy (e-mail SE only to RCN)
OGC',
D. Terao G. Hill'(2),
M. Kotzalas ACRS G. Shear A. Blough, Rl DOCUMENT NAME: G:(NMP2$RELA5052.WPD To receive a copy of this document, indicate in the box: "C" = Copy without enclosures "E" = Co with enclosures "N" = No co OFFICE NAME LA:PDI-PM:PDI-1 DHood/rsl
>"ps~
SLittle SC:PDI-1 SBa'wa OGC DATE 04/ Z /99 04/
/99 04/
/99 OFFICIAL RECORD COPY 04/Z /99
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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 Gary'D. Wilson, Esquire Niagara Mohawk Power Corporation 300 Erie Boulevard West
- Syracuse, NY 13202 Mr. F. William Valentino, President New York State Energy, Research, and Development Authority Corporate Plaza West 286 Washington Avenue Extension Albany, NY 12203-6399
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