ML17055C676
| ML17055C676 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 11/24/1986 |
| From: | Zwolinski J Office of Nuclear Reactor Regulation |
| To: | Mangan C NIAGARA MOHAWK POWER CORP. |
| Shared Package | |
| ML17055C677 | List: |
| References | |
| TAC-57160, NUDOCS 8612100342 | |
| Download: ML17055C676 (6) | |
Text
Docket No. 50-220 November 24, 1986 Niagara Mohawk Power Corporation ATTN:
Mr. C. V. Mangan Senior Vice President c/o Miss Catherine R. Seibert 300 Erie Boulevard West
- Syracuse, New York 13202
Dear Mr. Mangan:
SUBJECT:
SAFETY EVALUATION -,STRUCTURAL INTEGRITY OF VACUUM BREAKFRS (TAC 57160)
Re:
Nine Mile Point Nuclear Station, Unit No.
1 We have completed our review of your submittals dated July 22, 1983 and March 7, 1986 regarding the structural integrity of vacuum breakers in the Nine Mile Point Nuclear Station, Unit No.
1 (NHP1), for the Mark I Containment Program.
A detailed review and technical evaluation was performed by the Staff's contractor, Franklin Research Center (FRC), and is found in the attached Technical Evaluation Report (TER). It should be noted that on pages 8 and 15 of the TER, the vacuum breaker type and size for both Fitzpatrick and Nine Mile Point Unit 1 should be AM 30 in. (external),
and not AM 18 in. (external).
We have reviewed this report and concur with the contractor's conclusion that the vacuum breakers at'NMPl will provide adequate margins of safety under the revised loadings in the Mark I contain-ment for all operating conditions, and therefore need not be modified.
C A copy of the Safety Evaluation supporting our findings is enclosed.
Sincerely,
Enclosure:
Safety Evaluation cc w/enclosure:
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Docket No. 50-220 UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 November 24, 1986 Niagara Mohawk Power Corporation ATTN:
Hr. C. V. Mangan Senior Vice President c/o Hiss Catherine R. Seibert 300 Erie Boulevard West
- Syracuse, New York 13202
Dear Mr. Mangan:
SUBJECT:
SAFETY EVALUATION - STRUCTURAL INTEGRITY OF VACUUM BREAKERS (TAC 57160)
Re:
Nine Mile Point Nuclear Station, Unit No.
1 We have completed our review of your submittals dated July 22, 1983 and March 7, 1986 regarding the structural integrity of vacuum breakers in the Nine Mile Point Nuclear Station, Unit No.
1 (NHP1), for the Hark I Containment Program.
A detailed review and technical evaluation was performed by the Staff's contractor, Franklin Research Center (FRC), and is found in the attached Technical Evaluation Report (TER). It should be noted that on pages 8 and 15 of the TER, the vacuum breaker type and size for both Fitzpatrick and Nine Mile Point Unit 1 should be AM 30 in. (external),
and not AM 18 in. (external).
We have reviewed this report and concur with the contractor's conclusion that the vacuum breakers at NHP1 will provide adequate margins of safety under the revised loadings in the Mark I contain-ment for all operating conditions, and therefore need not be modified.
A copy of the Safety Evaluation supporting our findings is enclosed.
1 Sincerely,
Enclosure:
Safety Evaluation cc w/enclosure:
See next page 4
John A. Zwolinski, Dir ctor BWR Project Directorate Il1 Division of BWR Licensing
~ 1 E
Mr. C. V. Mangan Niagara Mohawk Power Corporation Nine Mile Point Nuclear Station, Unit No.
1 CC:
Troy B. Conner, Jr., Esquire Conner 5 Wetterhahn Suite 1050 1747 Pennsylvania
- Avenue, N.
W.
Washington, D.
C.
20006 Frank R. Church, Supervisor Town of Scriba R. D. 82
- Oswego, New York 13126 Niagara Mohawk Power Corporation ATTN:
Mr. Thomas Perkins Plant Superintendent 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 John W. Keib, Esquire Niagara Mohawk Power Corporation 300 Erie Boulevard West
- Syracuse, New York 13202 Regional Administrator, Region I U. S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, Pennsylvania 19406 Mr. Jay Dunkleberger Division of Policy Analysis and Planning New York State Energy Office Agency Building 2 Empire State Plaza
- Albany, New York 12223
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