ML16340C360
| ML16340C360 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 02/16/1982 |
| From: | Berkow H Office of Nuclear Reactor Regulation |
| To: | Dogherra S, Draper D, Randolph P AFFILIATION NOT ASSIGNED |
| References | |
| NUDOCS 8203030163 | |
| Download: ML16340C360 (10) | |
Text
February
~ 16, 1982 Docket Nos. 50-275 and 50-323 Ms.
Susan Dogherra 2257 Juan Pablo Lane Santa Cruz, California 95062
Dear Ms. Dogherra:
This is in response to your recent message to President Reagan regarding the delay in licensing of the Diablo Canyon Nuclear Power Plant.
Extensive public hearings have been held before -an'tomic Safety and Licensing Board (ASLB) on various..matters concerning the status of Diablo Canyon.
The Hosgri Fau]t, which is located 2k miles offshore from the Diablo Canyon plants, was discovered in 1971 and has been the subject of intensive investigation by the Pacific Gas
& Electric Company (PG&E), the U.S. Geological Survey (USGS) and the Nuclear Regulatory Commission.
As a
principal geological advisor for the Commission, the USGS in 1975 suggested that a magnitude of 7.5 be assigned as a potential seismic value for the Hosgri Fault.
On September 26, 1979, the ASLB assigned to conduct the licensing hearings issued its partial initial decision which found that a
7.5 magnitude earthquake is reasonable and meets regulatory requirements.
On July 17, 1981, the Board issued its findings, concluding that operation of the Diablo facility at power levels not to exceed 5X rated power would not pose an undue risk to the health and safety of the general public.
The NRC issued a low power license on September 22, 1981.
On September 28, 1981, PG&E notified the NRC staff that incorrect vertical response spectra were used in the design of seismic restraints for certain piping and components.
The Commission suspended the low power operating license on November 19, 1981, and requested that additional information be submitted to assure that the piping and components restraints have been properly designed prior to a decision on re-instating the low power license.
OFFICE/
SURNAME/
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8203030 i63
. 8202 i6 PDR ADOCK 05000275 P
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NRC FORM 318 IIO/80) NRCM 0240 OFFICIAL RECORD COPY 0 USGPO; 1980-829 824
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>le appreciate your interest in the Diablo Canyon project and understand your frustration at the delays in its licensing.
Please be assured that the NRC is taking every reasonable action to expedite the licensing
- process, consistent with our commitments to ensure the public health and safety.
Sincerely, priginal Signel b7 Herbert N. Berk09/
Herbert N. Berkow, Chief Management Analysis Branch Planning and Program Analysis Staff Office of Nuclear Reactor Regulation OFFICEI SURNAME/
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IDEt4TICAL LETTERS SENT TO:
Mr. Dennis'.
Draper Rt. 1, Box 53A Arcata, California 95521 Ms. Susan Dogherra 2257 Juan Pablo Lane Santa Cruz, California 95062 Mr. Paul A. Randolph 156 Blueberry Hill Los Gatos, California.
95030 DISTRIBUTION Docket Files 50-275 50-323 LPDR (2)
NRC PDR (2)
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