ML17059A862

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Forwards SE Approving Relief Request CS-RR-6 Re Alternative Testing Proposed for Certain Core Spray Sys Relief Valves
ML17059A862
Person / Time
Site: Nine Mile Point Constellation icon.png
Issue date: 06/26/1995
From: Marsh L
Office of Nuclear Reactor Regulation
To: Sylvia B
NIAGARA MOHAWK POWER CORP.
Shared Package
ML17059A863 List:
References
TAC-M91583, NUDOCS 9507050381
Download: ML17059A862 (6)


Text

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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 June 26, 1995 Mr. B. Ralph Sylvia Executive Vice President, Nuclear Niagara Hohawk Power Corporation Nine Hile Point Nuclear Station P.O.

Box 63

Lycoming, NY 13093

SUBJECT:

APPROVAL OF RELIEF REQUEST CS-RR-6 FOR THE NINE MILE POINT NUCLEAR STATION UNIT NO.

1 (NMP-1)

(TAC NO. H91583)

Dear Mr. Sylvia:

The purpose of this letter is to approve the alternative testing proposed for certain core spray system relief valves.

By letter dated February 10,

1995, Niagara Mohawk Power Corporation (NHPC) submitted Relief Request CS-RR-6, requesting relief from the quarterly testing requirements of Section XI of the American Society of Mechanical Engineers Boiler and Pressure Vessel Code.

Relief Request CS-RR-6 would allow an alternate testing method for the core spray system relief valves81-241, 81-242,81-243, and 81-244.

The alternate testing will verify leak rate each refueling outage, and that the valves will both open and close.

The NRC staff has reviewed NMPC's relief request, the bases for the request, and the proposed alternative testing for the core spray relief valves.

Based on our review and evaluation of NMPC's bases for the relief request and the alternatives

proposed, the NRC staff has granted the requested relief.

The NRC staff's evaluation and conclusion regarding Relief Request CS-RR-6 are contained in the enclosed safety evaluation.

By this letter, we are closing TAC No. H91583.

Sincerely, Docket No. 50-220

Enclosure:

Safety Evaluation cc w/encl:

See next page 800Hz 950705038i 950626 PDR ADOCK 05000220 P

PDR Ledyard B. Marsh, Director Project Director ate I-l Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation MIIC HLK I;KMTKIII"spy

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B. Ralph Sylvia Niagara Mohawk Power Corporation Nine Hile Point Nuclear Station Unit No.

1 CC;(

Hark J. Wetterhahn, Esquire Winston i Strawn 1400 L Street, NW Washington, DC 20005-3502 Supervisor Town of Scriba Route 8, Box 382

Oswego, NY 13126 Hr. Louis F. Storz Vice President - Nuclear Generation Niagara Hohawk Power Corporation Nine Hile Point Nuclear Station P.O.

Box 63

Lycoming, NY 13093 Resident Inspector U.S. Nuclear Regulatory Commission P.O.

Box 126

Lycoming, NY 13093 Gary D. Wilson, Esquire Niagara Hohawk Power Corporation 300 Erie Boulevard West
Syracuse, NY 13202 Regional Administrator, Region I U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 Hs.

Donna Ross New York State

Energy, Research, and Development Authority 2 Empire State Plaza Suite 1901
Albany, NY 12223-1253 Hr. Richard B. Abbott Unit 1 Plant Hanager Nine Hile Point Nuclear Station P.O.

Box 63

Lycoming, NY 13093 Hs. Denise Wolniak Hanager Licensing Niagara Hohawk Power Corporation Nine Hile Point Nuclear Station P.O.

Box 63

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. Hartin J.

McCormick, Jr.

Vice President Nuclear Safety Assessment and Support Niagara Hohawk Power Corporation Nine Hile Point Nuclear Station P.O.

Box 63

Lycoming, NY 13093

June 26, 1995

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Nr.

B. Ralph Sylv1a ~

Executi ve Vice President, Nuclear Niagara Mohawk Power Corporation Nine Mile

, Point Nuclear Station P. 0.

Box 63 L comi n NY 13093 g

SUBJECT:

APPROVAL OF RELIEF REQUEST CS-RR-6 FOR THE NINE'MILE POINT NUCLEAR STATION UNIT NO.

1 (NHP-1)

(TAC NO. M91583)

Dear Mr. Sylvia:

1

'he purpose of this letter is to approve the alternative testing proposed for certain core spray system relief valves.

By letter dated February 10,

1995, Niagara Mohawk Power Corporation (NHPC) submitted Relief Request CS-RR-6,'requesting relief from the quarterly testing requirements of Section XI of the American Society of Mechanical Engineers Boiler and Pressure Vessel Code.

Relief Request CS-RR-6 would allow an alternate testing method for the core spray system relief valves81-241, 81-242,81-243, and 81-244.

The alternate testing will verify leak rate each refueling outage, and that the valves will both open and close.

The NRC staff has reviewed NMPC's relief request, the bases for the request, and the proposed alternative testing for the core spray relief valves.

Based on our review and evaluation<of NHPC's bases for the relief request and the alternatives

proposed, the'INRC staff has granted the requested relief.

The NRC staff's evaluation and conclusion regarding Relief Request CS-RR-6 are contained in the enclosed safety evaluation.

By this letter, we are closing TAC No. M91583.

a J

'incerely,

/s/ Gordon E Eda.son for

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',, r'Ledyard;,B.

Marsh, Director

", Project'Directorate I-l Division of Reactor Projects I/II

'ffice of Nuclear Reactor Regulation Docket No..'50-220 Enclosure Sa'fety Evaluation",

cc w/encl:

See n'ext page ',

Distribution:

Docket Fi,le,',

J. Harold PUBLIC G. Edison PDI-1 Reading

'GC W. Russell/F.

Miraglia,,--E. Jordan, D/AEOD R.

Zimmerman B

r" G.'ill, IRM (2)

R. Spessard, D/DOTS ACRS (4)

J.

Lieberman, D/OE OPA S.

Varga OC/LFDCB J. Zwolinski W. Dean, EDO, 017-G21 L. Marsh C. Cowgill, RGN-I S. Little G.

J hnson DOCUMENT NAME:

G: iNMPliNM191583.REL i To recehre e copy of this document, IndIcete In the box:

  • See previ s concurrence

" ~ Cop ithout encIosur "E" ~ Copy with encl res "N" ~ No copy OFFICE NAME DATE LA:PDI-1 SLittle 06/

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