ML19249D729

Summary of 780303 Meeting W/Util Re Program for Geologic Investigations

ML19249D729
Person / Time
Site:	Humboldt Bay
Issue date:	05/10/1978
From:	Rooney V Office of Nuclear Reactor Regulation
To:	Lear G Office of Nuclear Reactor Regulation
Shared Package
ML19249D726	List: ML19249D725 ML19249D729
References
NUDOCS 7909250303
Download: ML19249D729 (42)

Text

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j UNITED STATES NUCLEAR REGULATORY COMMtsSION f, t. Il

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WASHING TON. Q. C. 20555 v.or > e

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MAY 1 0 578 l

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MEMORANDUM FOR:

George Lear, Chief, Operating Reactors Branch #3, 00R FROM:

Vernon L. Rooney, Project Manager, Operating Reactors Branch #3, COR

SUMMARY

OF MEETING HELD CN MARCH 3, 1978 TO DISCUSS FURThER GE0 LOGICAL INVESTIGATIONS FOR HUMBOLOT BAY UNIT NO. 3 On March 3,1978, representatives of PG&E met with the regulatory staff to inform the staff of a proposed program f:r further geological investigations near the Hum::cidt Say Unit No. 3 site.

Fellcwing PG&E's presentaticn, the staff indicated tha: the procesed crogram appeared : be :;uite 00m:renensive Ind carefully fccused on :ne remaining issues. The s.taff em;nasi:ed its belief :na the most cri:ical aspect of the pr: gram involved developing One ability to demonstra:e tha: :ne plant c uid Ocera:e safely in close proximity to the Bay En:rance fault.

A list of attendees is enclosed as At:achmen: A.

The infomation presented by PG&E is cc: lined in Attacnmen 5.

?G&E agreed t: keep the regulat:ry staff inf:rmed as werk pr0gressed.

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W.m%.

Vernon L. Recney, Ory.ect Manastr Operating Deac::rs Branch #3 Divisien of 0:erating Reactors Encl:sures:

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ATTACHMENT A LIST OF ATTENDEES Name Oraanization C. Nelson NRC J. Kellener NRC i

C. Stepp NRC B. Smith NRC D. Caldwell NRC V. Rooney NRC J. Greeves NRC L. Reiter NRC W. Gamill NRC R. Hofmann NRC P. Shemanski NRC G. Lear NRC F. Brady PG&E J. Carroll PG&E

0. Bettinger PG&E R. Locke PG&E

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M. Perkins Woodward-Clyde C:nsultants

0. Tocher Woodward-Clyde C:nsul tants L. Cluff Wecdward-Clyce C:nsul tants A. Patwardhan Woocward-Clyde C nsul an s P. Hanshaw USGS R. Morris USGS

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0 ATTACHMENT B PACIFIC CAS S ELECTRIC COMPANY HLMBOLDT BAY REVIEW MEETING WITil NRC STAFF Harch 3, 1978 l

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1.

Purpose of Meeting Frank Brady (PGSE) 2.

Purpose and Investigative Approach for Phase I Studies Lloyd Cluff (WCC) i 3.

On-Site Investigations Mike Perkins (WCC) l Doug Hamilton (ESA)

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4 Regional Investigations Lloyd Cluff and Don Tocher (WCC)

- geological studies

, seismological studies

- earthquake engineering studies 5.

Sumary Lloyd Cluff (NCC) l' Frank Brady (PGSE) 1 ver p p f Lo s A m

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_S TE INVESTIGATIONS TASK 1:

AGE OF THE LITTLE SALMON FAULT NEAR HUMBOLDT HILL.

TASK '2:

ORIGIN OF OFFSETS IN FIELDS LANDING RAVINE AND SAND QUARRY.

TdSK 3:

AGE OF THE CLAYSTONE MARKER AT THE SITE.

TASK 4:

CONTINUITY OF MARKER HORIZONS BENEATH THE SITE.

TASK 5:

BAY ENTRANCE FAULT INVESTIGATIONS.

l TASK 6:

ORIGIN OF EAST-WEST TRENDING STEP AT THE BASE OF THE HOOKTON EAST OF FIELDS LANDING.

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O REVIEW OF TECTONIC MODELS CONTROLLING FAULTIN G.

O REVIEW OF ROCK MECHANICS LITERATURE RELATING TO FRACTURE PROPAGATION.

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O REVIEW PUBLISHED LITER ATURE ON GEOLOGY, SElSMOLOGY, AND TECTONICS OF HUMBOLDT BAY REGION AND OTHER REGIONS OF

" TRANSITION AL TECTONICS".

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O DEVELOPMENT OF SPECIFIC PLATE TECTONIC MODELS FOR HUMBOLDT BAY REGION.

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O ANALYSIS OF PERTINENT AERIAL PHOTOGRAPHY AND OTHER AVAILABLE REMOTE SENSING IMAGERY.

O ANALYSIS OF AVAILABLE GEODETIC LEVELING DATA.

O REVIEW AND ANALYSIS OF AVAILABLE SEISMIC REFLECTION, GRAVITY, MAGNETIC, AND REFRACTION SURVEYS.

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CALIFORNI A, NORTH HALF (PRELIMIN ARY) (JENNINGS,1973).

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