ML20210S393

Forwards Response to Nrc/Lll Review of Seabrook Station Probabilistic Safety Assessment & Response to Lll Draft Rept. Meeting to Discuss Lll Rept & Util Response Suggested

ML20210S393
Person / Time
Site:	Seabrook
Issue date:	05/17/1986
From:	Devincentis J PUBLIC SERVICE CO. OF NEW HAMPSHIRE
To:	Noonan V Office of Nuclear Reactor Regulation
Shared Package
ML20210S398	List: ML20210S393 ML20210S402 ML20210S407
References
SBN-1053, NUDOCS 8605210279
Download: ML20210S393 (4)

Text

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SEABROOK STATION l l

Enginearing Office PENHI May 17, 1986 l PutWe Service of New Hampshire SBN- 1053 T.F. B7 .1. 99 United States Nuclear Regulatory Commission Washington, DC 20555 Attention: Mr. Vincent S. Noonan, Project Director PWR Project Directorate No. 5

References:

(a) Construction Permits CPPR-135 and CPPR-136, Docket Nos. 50-443 and 50-444 (b) USNRC Letter dated April 4, 1985, "Seabrook PSA Review", G. W. Knighton to R. J. Harrison (c) PSNH Letter (SBN-842), dated July 12, 1985, "Seabrook Station Probabilistic Safety Assessment (SSPSA)", J. DeVincentis to G. W. Knighton Subj ect : Response to NRC/LLNL Draf t Review of SSPSA

Dear Sir:

In Reference (c), we advised that the completion of the NRC's SSPSA review would be supported even though it was recognized that a PSA is not a licensing requirement. As a result of this commitment we have under-taken, with the assistance of our PSA consultant, a review to address in detail the dra't LLNL report.

Accordingly we have provided herewith our report entitled " Responses to NRC/LLNL Review of Seabrook Station Probabilistic Safety Assessment".

This report is composed of a main report and an appendix (Appendix A).

The main report summarizes our conclusions regarding Appendix A and responds to any concerns raised in the NRC's Draft Staff Summary re-port. Appendix A provides a detailed response to the LLNL draf t report.

l If as a result of our submittal, the Staff intends to continue its SSPSA review and issue a final report, we would suggest that a meeting be held to discuss the report and our responses more fully given the voluminous nature of both the LLNL report and our responses. As we stated at our meeting of November 14, 1985, we are prepared to respond further to the Staff's needs regarding the SSPSA review.

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t Seabrook Station Construction Field Office . P.O. Box 700 Seabrook, NH 03874 I-

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,s United States-Nuclear Regulatory Commission Attention: Mr. Vincent S. Noonan Page 2 In conclusion, we would like to state the SSPSA is but the first step in our risk management activities for Seabrook Station. We are continuing our ef forts to enhance our understanding of risk levels and the factors that contribute to these levels. One source of input to our future risk management activities will be the LLNL report.

Very truly ours, b /

John DeVincentis Director of Engineering Enclosures cc: Atomic Safety and Licensing Board Service List

9 Diane Curran Esquire Calvin A. Canney Harmon & Weiss City Manager 2001 S. Street, N.W. City Hall Suite 430 126 Daniel Street Washington, D.C. 20009 Portsmouth, NH 03801 Sherwin E. Turk, Esq. Stephen E. Merrill, Esquire Office of the Executive Legal Director Attorney General U.S. Nuclear Regulatory Commission George Dana Bisbee, Esquire Tenth Floor Assistant Attorney General Washington, DC 20555 Office of the Attorney General 25 Capitol Street Robert A. Backus, Esquire Concord, NH 03301-6397 116 Lowell Street P.O. Box 516 Mr. J. P. Nadeau Manchester, NH 03105 Selectmen's Office 10 Central Road Philip Ahrens, Esquire Rye, NH 03870 Assistant Attorney General Department of The Attorney General Mr. Angie Machiros Statehouse Station #6 Chairman of the Board of Selectmen Augusta, ME 04333 Town of Newbury Newbury, MA 01950 Mrs. Sandra Gavutis Chairman, Board of Selectmen Mr. William S. Lord RFD 1 - Box 1154 Board of Selectmen Kennsington, NH 03R27 Town Hall - Friend Street Amesbury, MA 01913 Carol S. Sneider, Esquire Assistant Attorney General Senator Gordon J. Humphrey Department of the Attorney General 1 Pillsbury Street One Ashburton Place, 19th Floor Concord, NH 03301 Boston, MA 02108 (ATTN: Herb Boynton)

Senator Gordon J. Humphrey H. Joseph Flynn, Esquire U.S. Senate Office of General Counsel Washington, DC 20510 Federal Emergency Management Agency (ATTN: Tom Burack) 500 C Street, SW Washington, DC 20472 Richard A. Hampe Esq.

Hampe and McNicholas Paul McEachern, Esquire 35 Pleasant Street Matthew T. Brock, Esquire Concord, NH 03301 Shaines & McEachern 25 Maplewood Avenue Donald E. Chick P.O. Box 363 Town Manager Portsmouth, NH 03801 Town of Exeter 10 Front Street Gary W. Holmes, Esq.

Exeter, NH 03333 Holmes & Ells 47 Winnacunnet Road Brentwood Board of Selectmen Hampton, NH 03841 RFD Dalton Road Brentwood, NH 03833 Mr. Ed Thomas FEMA Region I Peter J. Mathews, Mayor 442 John W. McCormack PO & Courthouse City Hall Boston, MA 02109 Newburyport, MA 01950 Stanley W. Knowles, Chairman Board of Selectmen P.O. Box 710

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fl Administrative Judge Helen-Hoyt, Chairperson Atomic-Safety and Licensing Board Panel U.S. Nuclear Regulatory Commission Washington, D.C._20555 Administrative Judge Sheldon J. Wolfe, Chairman Atomic Safety and Licensing Board Panel U.S. Nuclear Regulatory Commission Washington, D.C. 20555 Dr. Emmeth A. Luebke Atomic Safety and Licensing Board Panel U.S. Nuclear Regulatory Commission Washington, D.C. 20555 Dr. Jerry Harbour Atomic Safety and Licensing Board Panel U.F. Nuclear Regulatory Commission Washington, D.C. 20555