ML19254D658
| ML19254D658 | |
| Person / Time | |
|---|---|
| Site: | Vallecitos File:GEH Hitachi icon.png |
| Issue date: | 09/27/1979 |
| From: | Harold Denton Office of Nuclear Reactor Regulation |
| To: | Darmitzel R GENERAL ELECTRIC CO. |
| Shared Package | |
| ML19254D659 | List: |
| References | |
| NUDOCS 7910290320 | |
| Download: ML19254D658 (2) | |
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September 27, 1979 Docket No. 50-70 Mr. R. W. Darmitzel, Manager Irradiation Processing Product Section General Electric Company Vallecitos Nuclear Center P. O. Box 460 Pleasanton, California 04566
Dear Mr. Damitzel:
The NRC staff has reviewed the information r.egarding the proper seismic and geologic design bases for the General Electric Test Reactor (GETR) submitted in response to the October 24, 1977 Order to Show Cause.
The enclosed report "Geosciences Branch Safety Evaluation Report Input" documents the staff's review. This report, with its conclusions (pages 7-10), defines the current NRC staff position regarding the proper s!ismic and geologic design bases for GETR. Although your submittals of September 4,11 and 12,1979, are not discussed in the enclosed evaluation we have reviewed them sufficiently to determine that they do not alter our conclusions.
The staff's conclusion that a surface offset of two and a Falf meters could occur beneath the GETR (Paragraph II(5)) is in excess of the one meter surface offset to which the modified GETR facility has been analyzed by your staff.
Therefore we do not intend to continue our review of the GETR as currently analyzed. This includes the further staff evaluation necessary to define '.he maximum vibratory ground motion in terms of an effective acceleration and appropriate response spectra.
Furthemore, while you may propose to analyze the GETR using the seismic and geologic design bases in the enclosed report, we are not aware of any structure which has been analyzed or built for this type of seismic loading and it is our current viet that an analytical argu-ment cannot be formulated which would conclusively support the ability of a structure such as GETR to withstand a two and a half meter surface offset.
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Mr. R. W. Darmitzel You are requested to inform the staff of your intent to pursue your challenge to the staff's October 24, 1977 Order which directed the shutdown of the GETR facility.
Sinc ly, j
Harold R. Den on, Director Office of Nuclear Reactor Regulation
Enclosure:
Geosciences Branch Safety Evaluation Report Input cc w/ enclosure: See next page 1345 287 e
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- v...=r General Electric Company cc w/ enclosure (s):
California Dep.artment of Health ATTN:
Chief Environmental Radiation Dr. Harry Foreman, Member Control Unit Atomic Safety and Licensing Board Radiologic Health Section Box 395, Mayo 714 P Street, Room 498 University of Minnesota Sacramento, California 95184 Minneapolis, Minnesota 55455
. Honorable Ronald V. Dellums Ms. Barbara Shockley ATTN:
Ms. Nancy Snow 1890 Bockman Road General Delivery, Civic Center San Lorenzo, California 94580 Station Oakland, California 94604 Adviscry Comittee on Reactor Safe guards Friends of the Earth U. S. Nuclear Regulatory Commission ATTN:
W. Andrew Baldwin, Esquire Washington, D. C.
20555 Legal Director 124 Spear Street San Francisco, California 94105 Jed Somit, Esquire 100 Bush Street b
Suite 304 h
San Francisco, California 94104 Herbert Grossman, Esq., Chairman u
Atomic Safety and Licensing Board U. S. Nuclear Regulatory Commission Washington, D. C.
20555 Mr. Gustave
. Linenberger, Member Atomic Safety and Licensing Board U. S. Nuclear Regulatory Commission Washington, D. C.
20555 George Edgar, Esquire Morgan, Le.wis & Sockius 1800 M Street, NW Washington, D. C.
20036 1345 288
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