ML19330C093
| ML19330C093 | |
| Person / Time | |
|---|---|
| Site: | Big Rock Point File:Consumers Energy icon.png |
| Issue date: | 08/04/1980 |
| From: | Eisenhut D Office of Nuclear Reactor Regulation |
| To: | Hoffman D CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| Shared Package | |
| ML19330C094 | List: |
| References | |
| TASK-02-04.A, TASK-02-04.B, TASK-02-04.C, TASK-03-06, TASK-2-4.A, TASK-2-4.B, TASK-2-4.C, TASK-3-6, TASK-RR NUDOCS 8008070543 | |
| Download: ML19330C093 (4) | |
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UNITED STATES 5
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NUCLEAR REGULATORY COMMISSION
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Docket No. 50-155 AUG 0 41980 t
Mr. David P. Hoffman Nuclear Licensing Administrator Consumers Power Cogany i
212 West Michigan Avenue Jackson, Michigan 49201 Gentlemen:
RE: SIG ROCK POINT Our letter to you dated January 15, 1979 requested that you initiate as part of the Systematic Evaluation Program (SEP) a program to demonstrate the seismic design adequacy of your facility.
In relation to this request, we are aware of your efforts to develop a site specific ground response spectrum for your site; however, active structural / mechanical evaluations have not specifically been
' i nitiated. You are requested to submit, by September 15, 1980, details of your plans for proceeding with _a seismic evaluation program and provide justification for why you conclude that continued operation is justified in the interim until the program is coglete.
pr-Your submittal should address the scope of review and evaluation criteria and pro-vide a schedule for cogletion. The analytical portion of your program should be cogleted no later than January 1,1982. Any modifications to the facility that may be necessary as a result of your evaluations should be installed by the
- following refueling outage, but no later than January 1,1983. Any proposed changes to the facility as described in the safety analysis report shall be made in accordance with 10 CFR 50.59 of the Conmission Regulations.
As a minimum, your program should provide for,an evaluation of:
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The integrity of the reactor coolant pressure boundary, 2.
The integrity of fluid and electrical distribution systems related to safe shutdown and engineered safety features, 3.
The integrity and functionability of mechanical and electrical equipment j
and engineered safety feature systems (including containment).
Although we have delayed until the end of 1980 a final decision relative to seismic input to maximize the potential benefits to be derived from use of site specific ground response spectra, we expect you to proceed with your seismic i -
evaluation program.: Based upon input that we have received from the Lawrence Livermore Laboratory / TERA Corporation Site Specific Spectra Project, the Systematic Evaluation Program licensees, NRC consultants and other sources, we have concluded that the ground response spectra shown in the Attachment 1 is an appropriate level at which to initiate your evaluations. Between now and the end of.1980 we olan to coglete additional work that will allow us to finalize our decision.
It does not appear likely that the ground response spectra shown THIS DOCUMENT CONTAINS
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AUG 0 41980 Mr. David P. Hoffman in Attachment I will be modified to a large degree. Therefore, we strongly recomend that you use this ground response spectnam in your evaluations.
The bases for our decision are documented in Attachment 2.
You are free to make an alternative proposal for use in the interim until the final NRC staff decision is made. We must enphasize that taking such an approach involves increased risk on your part because certain evaluations may have to be redone at a later time. Furthermore, limitations of NRC staff resources make review of alternative proposals impossible in the near term.
In accordance with 10 CFR 50.54(f) of the Comission's regulations you are requested to submit the information described above on the dates indicated above in order to enable the Comission to determine whether or not your license should be modified, suspended or revoked.
Sincerely, k
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Division oNLicensing Office of Nuclear Reactor Regulation
Attachment:
As stated cc: See next page
Mr. David P. Hoffman cc Mr. Paul A. Perry, Secretary U. S. Environmental Protection Consumers Power Company Agency 212 West Michigan Avenue Federal Activities Branch Jackson, Michigan 49201 Region V Office ATTN: EIS COORDINATOR Judd L. Bacon. Esquire 230 South Dearborn Street Consumers Power Company Chicago, Illinois 60604 212 West Michigan Avenue Jackson, Michigan 49201 Herbert Grossman, Esq., Chairman Atomic Safety and Licensing Board Joseph Gallo, Esquire U. S. Nuclear Regulatory Commission Isham, Lincoln & Beale Washingten, D. C.
20555 1120 Connecticut Avenue Room 325 Dr. Oscar H. Paris Washington, D. C.
20036 Atomic Safety and Licensing Board U. S. Nuclear Regulatory Commission Peter W. Steketee, Esquire Washington, D. C.
20555 505 Peoples Building Grand Rapids, Michigan 49503 Mr. Frederick J. Shon Atomic Safety and Licensing Board Sheldon, Harmon and Weiss U. S. Nuclear Regulatory Commission 1725 I Street, N. W.
Washington, D. C.
20555 Suite 506 Washington, D. C.
20006 Big Rock Point Nuclear Power Plant ATTN: Mr. C. J. Hartman Mr. John O'Neill, II Plant Superintendent Route 2, Box 44 Charlevoix, Michigan 49720 Maple City, Michigan 49664 Christa-Maria Charlevoix Public Library Route 2, Box 108C 107 Clinton Street Charlevoix, Michigan 49720 Charlevoix, Michigan William J. Scanlon, Esquire Chairman 2034 Pauline Boulevard County Board of Supervisors Ann Arcor, Michigan 48103 Charlevoix County Charlevoix, Michigan 49720 Office of the Governor (2)
Room 1 - Capitol Building Lansing, Michigan 48913 Director, Technical Assessment Division
' Office of Radiation Programs (AW-459)
U. S. Environmental Protection Agency Crystal Mall #2 Arlington, Virginia 20460
ATTACHMENT 1 BIG ROCK POINT IM.0 i
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