ML17250B259

Provides NRC Evaluation of Util Clarification of Licensee Response to GL 87-02 for Plant

ML17250B259
Person / Time
Site:	Ginna
Issue date:	06/08/1993
From:	Andrea Johnson Office of Nuclear Reactor Regulation
To:	Mecredy R ROCHESTER GAS & ELECTRIC CORP.
References
REF-GTECI-046, REF-GTECI-NI, TASK-046, TASK-46, TASK-OR GL-87-02, GL-87-2, TAC-M69449, NUDOCS 9306150109
Download: ML17250B259 (4)

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Docket No. 50-244 UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, O. C. 20555 June 8, 1993 Dr. Robert C. Hecredy Vice President, Nuclear Production Rochester Gas 8I Electric Corporation 89 East Avenue Rochester, New York 14649

SUBJECT:

EVALUATION OF ROCHESTER GAS AND ELECTRIC CORPORATION'S CLARIFICATION OF ITS RESPONSE TO SUPPLEHENT NO.

1 TO GENERIC LETTER (GL) 87-02 FOR GINNA NUCLEAR POWER PLANT (TAC NO. H69449)

This letter provides the NRC staff evaluation of Rochester Gas and Electric Corporation's (RGEE) clarification of its response to Supplement No.

1 to GL 87-02 for Ginna Nuclear Power Plant.

On Hay 22, 1992, the NRC staff issued Supplement No.

1 to GL 87-02, which transmitted Supplemental Safety Evaluation Report No.

2 (SSER No. 2) on the Seismic Qualification Utility Group (SQUG) Generic Implementation Procedure, Revision 2 (GIP-2), dated February 14, 1992, for the resolution of Unresolved Safety Issue (USI) A-46.

By letter dated September 21, 1992, the licensee submitted its response to Supplement No.

1 to GL 87-02.

The staff issued an evaluation of the licensee's 120-day response, in a letter dated November 30,

1992, in which it interpreted the licensee's response as a commitment to use the entire GIP-2, including both the SQUG commitments and implementation

guidance, as supplemented by SSER No. 2.

In its letters dated January 12,

1993, Harch 3,

1993, and April 20,

1993, the licensee confirmed the staff's interpretation described in its letter of November 30, 1992, with the understanding that it may deviate from GIP-2 in accordance with Part I, Section 1.3 of the GIP-2.

The staff finds the licensee's response acceptable.

In its evaluation report, dated November 30, 1992, the staff also concluded that the licensee's response related to the in-structure response spectra (IRS) is adequate and acceptable.

However, the staff added that "if more than one set of IRS appear in the licensing basis documents, the more conservative set of spectra must be used to qualify for the definition of 'conservative, design'RS for the resolution of USI A-46 issues at Ginna."

In the letter of April 20,

1993, the licensee stated that the IRS it plans to use for the resolution of USI A-46 were generated from the R.G.

1.60 SSE response spectra anchored at 0.2g, which meets the definition of "conservative, design" IRS.

The staff finds the licensee's response acceptable.

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Dr. Robert Mecredy June 8, 1993 Additionally, as stated in Section I.2.3. 1 of the SSER No. 2, the staff recognizes that a licensee may revise its licensing basis in accordance with 10 CFR 50.59 to reflect the acceptability of the USI A-46 (GIP) methodology for verifying the seismic adequacy of electrical and mechanical equipment covered by the GIP.

Sincerely, Original signed by:

Allen R. Johnson, Project Manager Project Directorate I-3 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation cc:

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/93 OFFICIAL RECORD COPY DOCUMENT NAME: A:iRESPONSE TO GL 87-02

Dr. Robert Mecredy June 8,

1993 Additionally, as stated in Section I,2.3. 1 of the SSER No. 2, the staff recognizes that a licensee may revise its licensing basis in accordance with 10 CFR 50.59 to reflect the acceptability of the USI A-46 (GIP) methodology for verifying the seismic adequacy of electrical and mechanical equipment covered by the GIP.

Sincerely, cc:

See next page Al n R. John on, Project Manager P

ject Dire orate I-3 Div'actor Projects I/II Office of Nuclear Reactor Regulation

Dr. Robert C. Hecredy R.E.

Ginna Nuclear Power Plant CC:

Thomas A. Hoslak, Senior Resident Inspector R.E.

Ginna Plant U.S. Nuclear Regulatory Commission 1503 Lake Road

Ontario, New York 14519 Regional Administrator, Region I

U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, Pennsylvania 19406 Hs.

Donna Ross Division of Policy Analysis 3 Planning New York State Energy Office Agency Building 2 Empire State Plaza

Albany, New York 12223 Charlie Donaldson, Esq.

Assistant Attorney General New York Department of Law 120 Broadway New York, New York 10271 Nicholas S.

Reynolds Winston

& Strawn 1400 L St.

N.W.

Washington, DC 20005-3502 Hs.

Thelma Wideman

Director, Wayne County Emergency Management Office Wayne County Emergency Operations Center 7370 Route 31

Lyons, New York 14489 Ms. Mary Louise Heisenzahl Administrator, Monroe County Office of Emergency Preparedness 111 West Fall

Road, Room 11 Rochester, New York 14620