ML20214G670

Forwards Recommended Seismic Review Actions Needed to Resolve Licensing Decisions on Nuclear Plants in Pacific Northwest Under Review for Cps,Per Meeting on 770202

ML20214G670
Person / Time
Site:	Columbia, 05000514, 05000000, 05000515, Washington Public Power Supply System, Satsop, Skagit
Issue date:	02/08/1977
From:	Stolz J Office of Nuclear Reactor Regulation
To:	Boyd R, Case E, Rusche B NRC
References
CON-WNP-0159, CON-WNP-159 NUDOCS 8605220385
Download: ML20214G670 (3)

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UNITED STATES NUCLEAR REGULATORY COMMISSION 3 j WASHINGTON, D. C. 20555

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SEISM 0 LOGY REVIEW PLAN FOR PACIFIC NORTHWEST PLANTS l

A meeting was held among DPM and DSE staff on February 2,1977, to discuss appropriate seismic review actions needed to resolve licensing decisions on the nuclear planti located in the Pacific Northwest that are under review for construction permits considering the potential impact of the 1872 Earthquake and the likely progress cf the USGS review of the reports submitted by the Pacific Northwest utilities task force group.

The recommended review actions summarized herein for the several plants are based on the following: ,

(1) The staff can support conclusions for seismic design bases for WNP 3, 5 and Skagit 1 & 2 and -the staff believes that its conclusions for these plants will not likely be affected by the USGS review of the 1872 Earthquake.

(2) The 1872 Earthquake evaluation by USGS should be evaluated in review of the seismic design of the other plants (i.e., WNP 1,4; WNP 2; Pebble Springs 1 & 2).

(3) The USGS will likely take about 3 months to complete its review of the 1872 Earthquake report submitted by the utilities task force group. A l/s a s

[JohnF.Stolz, Chief i

ght Water Reactors Branch No. 1 ivision of Project Management

Enclosure:

Recommended Review Action 3D paw A

8605220389 770208 PDR ADOCK 05000397 A PUR

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ENCLOSURE FOR '

SEISM 0 LOGY REVIEW PLAN FOR PACIFIC NORTHWEST PLANTS FACILITY PRESENT STATUS RECOMMENDED REVIEW ACTION WNP 3, 5 Needs LWA-1; only 1872 seismic Staff to prepare affidavits by 3/1/77 for issue involved. Safety hearing transmittal to ASLB by 3/8/77 to support scheduled to begin 5/17/77. LWA-1 decision; SER Supplement to be sub -

sequently issued prior to safety hearing.

Except no change in previous seismic design basis (0.32 9) conclusions; no USGS review will be requested, since USGS did not par-ticipate in this plant review. ,

_ .t Skagit 1, 2 Needs LWA-1; combined hearing with Staff to prepare seismic input to SER by Pebble Springs on need for power 3/1/77 (SSE to be likely 0.359 instead of a

scheduled for March '77; seismic 0.30g present design basis). USGS review concern among the issues affecting of staff conclusions will be requested; will resumption of environmental hearing proceed to LWA hearing without USGS letter possibly in April '77 & issuance of unless USGS has significant problem with LWA-1; ACRS meeting scheduled for staff's conclusions; may possibly have USGS June '77. letter for June ACRS meeting but if necessary will proceed to ACRS without USGS letter.

Pebble Springs 1, 2 Needs LWA-1; combined hearing with Staff will wait for USGS report on 1872 Skagit on need for power scheduled earthquake to support SER supplement.

for March '77; ACRS meeting will be Supplement likely to be issued by June 1977.

delayed to .1ulv '77. >

WNP-1 CP issued 12/23/75 WNP-2 CP issued 3/19/73; construction about 30% complete.

WNP-4 LWA-1 & 2 issued 8/1/75; LWA-2 supplement issued 10/3/75 authorizing work that will be completed by about 9/77. Seismic issue is pacing item for ASLB decision on CP.

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' 'T DISTRIBUTION B. Rusche E. Case R. Boyd R. C. DeYoung D. B. Vassallo F. J. Williams J. Stolz K. Kniel

0. Parr S. Varga L. Crocker H. Smith H. Berkow -

R. Heineman J. Knight I. Sibweil H. Denton V. Moore W. Gammill J. Stepp I. Peltier C. Stable T. Cox M. D. Lynch A. Bournia E. Hylton M. Service M. Rushbrook J. Lee ELD l Central Files (RD 16-6 1872 Earthquake)

! Docket Files 522/523 50-514/515 l 50-460/513 50-397

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60-508/509 1

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