ML16341B125

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Forwards Staff Eval of Probabalistic Seismic Risk Assessment Covering:Pge Studies on Probabilities of Earthquakes & Resulting Ground Acceleration at Site, & Probabilities of Various Consequences
ML16341B125
Person / Time
Site: Diablo Canyon  
Issue date: 11/21/1978
From: Stolz J
Office of Nuclear Reactor Regulation
To: Morrissey J
PACIFIC GAS & ELECTRIC CO.
Shared Package
ML16340A293 List:
References
NUDOCS 7812010010
Download: ML16341B125 (8)


Text

M. L. Ernst R.

P. Denise ELD IE (3)

J.

C. Stepp S. Levine A. Buhl J.

Murphy J. Pittman M. Vessely R. Blond J. Tourtellotte E.

Ketehen M. Staenberg J.

L'awrence P. T.

Kuo P.

Y. Chen F.

Rosa J.

Knox RISK ASSESSh1EHT Docket Hos'.

50-275 and 60-323 Distribution;,'

NRC PDR ocal, PDR NOV 2 > "97 Oqgket File Pile H.

R. Denton R. S.

Boyd D. B. Vassallo F. J. Williams J.

F. Stolz D. P. Allison G. Hylton Nr. John C. Morrissey D.

R. Muller Vice President 5 General Counsel Pacific Gas 8 Electric Company 77 Beale Street San Francisco, California 94106

Dear Yir. Morrissey:

V. A. Moore R. H..Vollmer

SUBJECT:

STAFF EVALUATIONOF PROBABILISTIC SEISI]IC

't bcc:

ABRS (16)

J.

Buchanan T. Abernathy In December 1977, we suspended our review of your interim license request in order to concentrate on the. normal or full term license review.

He stated at that time, however, that we would cont1nue with our evaluation of the probabilistic risk assessment you had submitted in support of the interim license request.

Our evaluation of the probabilistic seismic risk assessment is provided in the enclosures.

Enclosure Ho.

1 discusses your studies on the probabilities of earthquakes and resulting ground accelerations at, the site.

Enclosures 2 and 3 discuss your studies on the probabilities of various consequences.

This information was not relied upon in making our decisions regarding Diablo Canyon. It is provided here to complete the record of our evaluation of your probabilistic risk assessment.

, Sincerely, Originai Signed by

~ John I'. stol@

,. John F. Stolz, Chief

. Lightl'Mater Reactors Branch No.

1

, Division of Prospect Nanagement

Enclosures:

1.

Memorandum to Stolz from Stepp.dated May 8, 1978 2.

Memorandum to Stolz from Buhl dated Seg'.ember S, 1978 3.

Memorandum to StMz from 78XRGIQol o oi I L0g~

CUR NISB8.

teXt..page DPM.:LWR-41----- DH<-+~~- -- -------------

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Docket Hos:

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Oistribution:

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E""'ocal PDR R.

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Denise Docket File ELD LWR 81 File IE (3)

NOV 2 1 1978 H.

R. Denton J.

C. Stepp R.

S.

Boyd

.S.

Levine D. B. Vassallo A. Buhl F.'. Williams J.

Murphy J.

F. Stolz'.

Pittman D.

P. Allison W. Vessely E.

G. Hylton R. Blond

. D.

R. Muller J. Tourtellotte Mr. John C. Nrrfssey R. J. Mattson E. Ketchen Vfce President 8 General Counsel D. F.

Ross M. Staenberg Pacific Gas 5 Electric ComPany J. p. Knight J.

Lawrence 77 Beale Street R. L. Tedesco P. T.

Kuo San Francfsco, Calffornfa 94106 R

C D y g

p y

V. A. Moore F.

Rosa

Dear Mr. Morrfssey:

R.

H. Vollmer J.

Knox

SUBJECT:

STAFF EVALUATION OF PROBABILISTIC SEISMIC RISK ASSESSi%iP bcc:

ACRS (16)

J

~ Buchanan T. Abernathy

.In December 1977, we suspended our revfew of your interim lfcense request fn order to concentrate on the, normal or full term 'license revfew.

We stated at that time, however, that we would continue wfth.

our evaluatfon of the probabflfstfc risk assessment you had submftted fn support of ~he fnterfttt lfcense request.

Our evaluation of the probabflfstfc sefsmfc risk assesstttent fs provided fn the enclosures.

Enclosure No 1 discusses your-studies on the probabflitfes of earthquakes and resultfng ground accelerations at the site.

Enc1osures 2 and 3 dfscuss your studies on the probabfl.ftfes of various consequences.

This fnformation was not relied upon fn making our decfsfons regarding Diablo Canyon. It is provided here to complete the record of our evaluation of yout prohabf1fstfc. risk assessment.-

Sfncerely, Original Signed 5g John F. Stol John F. Stolz, Chief

. Light'.Rater Reactors Branch Ho.

1 Ofvfsfon of ~ect Management

Enclosures:

1.

Memorandum to Stolr frottt Stepp datril i%y 8, 1978 2.

Memorandum to Stolz frea Buhl dated. Sep~er S,

1978'.

Memorandtun to Stol z frotti e v.<

'OrrlCSW CC.

SU IINA OAtC~

PAllison:pcm 11/ J7

/78 DPNR R N JFSto ~

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/78 NRC FORM 318 (9-76) NRCM OMO

  • Ul% 44vsetNsesNl:sselNTlN4 orncie lsts ss44Q

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Mr. John C. Morrissey NOV 2 1 1978 CC:

'Mr. John Marrs Managing Editor San Luis Obispo County Telegram - Tribune 1321 Johnson Avenue P. 0. Box 112 San Luis Obispo, California 93406 Philip A. Crane, Jr., Esq.

Pacific Gas 8 Electric Company 77 Beal e Street San Francisco, California 94106 Janice E. Kerr, Esq.

California Public Utilities Commission 350 McAllister Street San Francisco, California 94102 Mr. Frederick Eissler, President Scenic Shoreline Preservation Conference, Inc.

4623 More Mesa Drive Santa Barbara, California 93105 Ms. Elizabeth E. Apfelberg 1415 Cazadero San Luis Obispo, California 93401 Ms. Sandra A. Silver 1792 Conejo Avenue San Luis Obispo, California 93401 Mr. Gordon A. Silver 1792 Conejo Avenue San Luis Obispo, California 93401 Paul C. Valentine, Esq.

321 Lytton Avenue Palo Alto, California 94302 Yale I. Jones, Esq.

19th Floor 100 Van Ness Avenue San Francisco, California 94102 Alan S. Rosenthal, Esq.

Atomic Safety 8 Licensing Appeal Board U. S. Nuclear Regulatory Commission Washington, D. C.

20555 Elizabeth S. Bowers, Esq.,

'Chairman Atomic Safety 8 Licensing Board U. S. Nuclear Regulatory Commission Washington, D. C.

20555 Mr. Glenn 0. Bright Atomic Safety 8 Licensing Board U. S. Nuclear Regulatory Commission Washington, D. C.

20555 Tolbert Young P. 0. Box 219 Avila Beach, California 93424 Richard S. Salzman, Esq.,

Chairman Atomic Safety 8 Licensing Appeal Board U. S. Nuclear Regulatory Commission Washington, D. C.

20555 Dr.

W. Reed Johnson Atomic Safety 8 Licensing Appeal Board U. S. Nuclear Regulatory Commission Washington, D. C.

20555 Mr." Richard Hubbard MHB Technical Associates 366 California Avenue Palo Alto, California 94306

Mr. John C. Horrissey.

NOV 3 1 1978 cc:

Ms. Raye Fleming 1746 Chorro Street San Luis Obispo, California 93401 Brent Rushforth, Esq.

Center for Law in the Public Interest 10203 Santa Monica Boulevard Los Angeles, California 90067 Arthur C. Gehr, Esq.

Snell

& Wi lmer 3100 Valley Center Phoenix, Arizona 85073 Mr. James

0. Schuyler, Project Engineer Pacific Gas E Electric Company 77 Beale Street San Francisco, California-94106 Bruce Norton, Esq.

3216 North 3rd Street Suite 202 Phoenix, Arizona

'85012 Hr.

W. C. Gangloff Westinghouse Electric Corporation P. 0. Box 355 Pittsburgh, Pennsylvania 15230 Michael R. Klein, Esq.

Wilmer, Cutler 8 Pickering 1666 K Street, N.

W.

Washington, D. C.

20006 David F.

F 1 ei schaker, E sq.

1025 15th Street, N.

W.

5th Floor

'Washington, D. C. 20005 Dr. William E. Hartin Senior, Ecologist Battelle Memorial Institute

Columbus, Ohio 43201

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