ML17058A821

Discusses Util Response to Generic Ltr 88-11, NRC Position on Radiation Embrittlement of Reactor Vessel Matls & Impact on Plant Operations. NRC Action Completed W/Respect to Licensee Response to Subj Generic Ltr.Tac 71518 Closed

ML17058A821
Person / Time
Site:	Nine Mile Point
Issue date:	06/24/1991
From:	Brinkman D Office of Nuclear Reactor Regulation
To:	Sylvia B NIAGARA MOHAWK POWER CORP.
References
GL-88-11, TAC-71518, NUDOCS 9107010017
Download: ML17058A821 (8)

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Docket No. 50-220 UNITED STATES NUCLEAR REGULATORY COIVIMISSION WASHINGTON, D.C. 20555 June 24, 1991 Hr. B. Ralph Sylvia Executive Vice President, Nuclear Niagara Mohawk Power Corporation 301 P la infiel d Poad

Syracuse, New York 13211

SUBJECT:

RESPONSE

TO GENERIC LETTER 88 NINE NILE POINT NUCLEAR STATION UNIT NO.

1 (TAC NO. 71518)

NRC Generic Letter 88-11, "NRC Position On Radiation Embrittlement Of Reactor Vessel Materials And Its Impact On Plant Operations,"

dated July 12, 1988, requested all licensees of operating reactors to provide an analysis of the impact of Revision 2 to Regulatory Guide 1.99 on pressure-temperature limits and submit a schedule for actions proposed.

By letter dated November 22, 1988, Niagara Mohawk Power Corporation (NMPC) responded to GL 88-11 and stated that the current pressure-temperature limits for Nine Mile Point 1 had been prepared using the guidance provided in Regulatory Guide 1.99, Revision 2.

Your response also referred to a

September 4, 1988, safety evaluation in which the NRC staff stated that the current pressure-temperature limits were acceptable in spite of a potential material mixup in the surveillance capsule.

The safety evaluation further stated that NHPC should determine the identity of the test material in the surveillance program and submit revised pressure-temperature limits before the end of 13 effective full power years (EFPYs) of operation.

By letter dated Hay 13, 1991, NMPC submitted an application for a license amendment to. revise pressure-temperature limits.

TAC No. 80394 has been assigned for review of the Hay 13, 1991, submittal.

The application also provided information clarifying the identity of the test material used in the reactor vessel surveillance program.

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Hr. B. Ralph Sylvia ~ 'une 24, 1991 This completes all action with respect to HYiPC's response to GL 88-11.

Therefore, TAC No. 71518 is closed.

Sincerely, cc:

See next page Donald S. Brinkman, Senior Project Hanager Project Directorate I-l Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation

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

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

Washington, D. C.. 20005-3502 Supervisor Town of Scriba R.

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Oswego, New York 13126 Mr. Joseph F. Firlit Vice President - Nuclear Generation Niagara Mohawk Power Corporation Nine Mile Point Nuclear Station Post Office Box 32

Lycoming, New York 13093 Resident Inspector U.S. Nuclear Regulatory Commission Post Office Box 126

Lycoming, New York, 13093 Mr. Gary D. Wilson, Esquire Niagara Mohawk Power Corporation 300 Erie Boulevard West

Syracuse, New York 13202 Regional Administrator, Region I U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, Pennsylvania 19406 Ms.

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

Albany, New York 12223 Mr. Kim Dahlberg Unit 1 Station Superintendent Nine Mile Point Nuclear Station Post Office Box 32

Lycoming, New York 13093 Mr. David K. Greene Manager Licensing Niagara Mohawk Power Corporation 301 Plainfield Road

Syracuse, New York 13212 Charlie 'Donaldson, Esquire Assistant Attorney General New York Department of Law 120 Broadway New York, New York 10271 Mr. Paul D.

Eddy State of New York Department of Public Service Power Division, System Operations 3 Empire State Plaza

Albany, New York 12223

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June 24, 1991 This completes all action with respect to NNPC's response to GL 88-11.

Therefore, TAC No. 71518 is closed.

Sincerely, PRlGINAt. SlGNED BYi cc:

See next page Donald S. Brinkman, Senior Project Manager Project Directorate I-1 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation Distribution:

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