ML17059A434

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Forwards Amend 56 to License NPF-69 & Safety Evaluation. Amend Revises Secondary Containment Drawdown Time Testing Requirement of TS 4.6.5.1.c.1 & Secondary Containment Inleakage Testing Requirement of TS 4.6.5.1.c.2
ML17059A434
Person / Time
Site: Nine Mile Point Constellation icon.png
Issue date: 08/30/1994
From: Brinkman D
Office of Nuclear Reactor Regulation
To: Sylvia B
NIAGARA MOHAWK POWER CORP.
Shared Package
ML17059A435 List:
References
TAC-M89785, NUDOCS 9409070273
Download: ML17059A434 (8)


Text

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+p*p4 UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON. D.C. 20555-0001 August 30, f994 Hr.

B. Ralph Sylvia Executive Vice President, Nuclear Niagara Mohawk Power Corporatio'n Nine Nile Point Nuclear Station P.O.

Box 63

Lycoming, NY 13093

SUBJECT:

ISSUANCE OF AMENDMENT FOR NINE MILE POINT NUCLEAR STATION, UNIT 2 (TAC NO. H89785)

Dear Mr. Sylvia:

The Commission has issued the enclosed Amendment No. 56 to Facility Operating License No. NPF-69 for the Nine Mile Point Nuclear Station, Unit 2.

The amendment consists of changes to the Technical Specifications (TSs) in response to your application transmitted by letter dated July 1, 1994.

The amendment revises the secondary containment drawdown time testing requirement of TS 4.6.5. l.c. 1 and the secondary containment inleakage testing requirement of TS 4.6.5. l.c.2.

The amendment supports a revised design basis radiological analysis which supports an increase in secondary containment drawdown time from 6 to 60 minutes by taking credit for fission product scrubbing and retention in the suppression pool which were not assumed in the original radiological analysis but are currently assumed in the NRC's Standard Review Plan (NUREG-0800).

The revised analysis also takes credit for additional mixing of primary containment and engineered safety feature system leakage with 50 percent of the secondary containment free air volume prior to the release of radioactivity to the environment.

The revised radiological evaluation has determined that the radiological doses remain below 10 CFR Part 100 guideline values and General Design Criterion 19 criteria.

9409070273 940830 PDR,ADOCK 05000420 P

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B. Sylvia s

August 30, 1994 A copy of the related Safety Evaluation is enclosed..

A Notice of Issuance will be included in the Cnmmissinn's next regular biweekly Federal

~Re ister notice.

Docket No. 50-410 Sincerely, 8~~.g Donald S. Brinkman, Senior Project Hanager Project Directorate I-1 Division of Reacto}

Projects I/II Office of Nuclear Reactor Regulation

Enclosures:

l.

Amendment No.56 to NPF-69 2.

Safety Evaluation cc w/encls: 'ee next page

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Mr. B. Ralph Sylvia Ni'agara'Mohawk Power Corporation Nine Mile Point Nuclear Station Unit 2 cco I ~

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Hark J. Wetterhahn, Esquire Winston 8 Strawn 1400 L Street, NW.

Washington, DC 20005-3502 Hr. Richard Goldsmith Syracuse University College of Law E. I. White Hall Campus

Syracuse, NY 12223 Resident Inspector Nine Mile Point Nuclear Station P.O.

Box 126

Lycoming, NY 13093 Gary D. Wilson, Esquire Niagara Mohawk Power Corporation 300 Erie Boulevard West
Syracuse, NY 13202 Hr. David K. Greene Hanager Licensing Niagara Hohawk Power Corporation Nine Hile Point Nuclear Station P.O.

Box 63

Lycoming, NY 13093 Hs.

Donna Ross New York State Energy Office 2 Empire State Plaza 16th Floor

Albany, NY 12223 Supervisor Town of Scriba Route 8, Box 382
Oswego, NY 13126 Regional Administrator, Region I U. S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 Charles Donaldson, Esquire Assistant Attorney General New York Department of Law 120 Broadway New York, NY 10271 Hr. Richard H. Kessel Chair and Executive Director State Consumer Protection Board 99 Washington Avenue
Albany, NY 12210 Hr. Kim A. Dahlberg Plant Hanager, Unit 2 Nine Mile Point Nuclear Station Niagara Hohawk Power Corporation P.O.

Box 63

Lycoming, NY 13093 Hr. Louis F. Storz Vice President Nuclear Generation Niagara Hohawk Power Corporation Nine Mile Point Nuclear Station P.O.

Box 63

Lycoming, NY 13093 Hr. Hartin J. HcCormick, Jr.

Vice President Nuclear'afety Assessment and Support Niagara Mohawk Power Corporation Nine Mile Point Nuclear Station P.O.

Box 63

Lycoming, NY 13093

DATED:

Au st 3

1 I

AMENDMENT NO.

56 TO FACILITY OPERATING LICENSE NO. NPF-69-NINE MILE POINT UNIT 2

,Docket File NRC

& Local -PDRs PDI-1 Reading S. Varga, 14/E/4 C. Miller, 14/A/4 M. Case C.

Vogan D. Brinkman OGC D. Hagan, 3302 MNBB G. Hill (2), Pl-22 C. Grimes, 11/F/23

'W. Long, 8/H/7 J.

Lee, 10/D/4 L. Cunningham, 10/D/4 R. Barrett, 8/H/7 C. McCracken, 8/D/1 ACRS (10)

OPA OC/LFDCB PD plant-specific file C. Cowgill, Region I, Others as required cc:

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