ML20214G716
| ML20214G716 | |
| Person / Time | |
|---|---|
| Site: | Columbia  |
| Issue date: | 05/03/1977 |
| From: | Stepp J Office of Nuclear Reactor Regulation |
| To: | Varga S Office of Nuclear Reactor Regulation |
| References | |
| CON-WNP-0173, CON-WNP-173 NUDOCS 8605220434 | |
| Download: ML20214G716 (2) | |
Text
DISTRIBUTION:
. CENTRAL FILE NRR RDG F
l'AY 3 1977 GB RDG
-f DSE RDG MEMORANDUM FOR:
S. A. Varga, Chief, Light Water Reactors Branch #4, DPM FROM:
J. C. Stepp, Chief, Geosciences Branch, DSE
SUBJECT:
WPPSS-2 ACCEFTAUCE REVIEW - FSAR The Geosciences Branch staff has completed its acceptance review of the geology, seismolomr and geotechnical engineering sections of the WFPSS-2 FSAR. Although there are several deficiencies, which are outlined on the next page, we recornend that the FSAR be accepted for docketing. The document should be amended as soon as possible, addressing the subjects on the following page.
J. Carl Stepp, Chief Geosciences Branch Division of Site Safety and Environmental Analysis
Enclosure:
As stated cc: v/ enclosure R. Boyd R. DeYoung W. Gamill V. Moore R. Hofmann T. Cox J. Kelleher l
R. McMullen L. Lynch J. Greeves J. Devine, USGS S. Brockman, USGS
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R. Morris, USGS L. Heller l
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- 2 Forre AEc.)la (Rev. 9 53) AECM 0240 W u. s. oovsanoesnt reintime arreces seve.eae.ees r -
P RY 0 1977" LTPSS, Unit 2, Accept ce Review - Request for Addit.
al Information
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3-i-ra l c.> :ue v.. *. w- - a,>p. red recentky ren diag the 1.m N,: th.e.> nn
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U. S. - southwestern Canada earthquake. A=ong these docuaents are the Skagit Appendix F, WPPSS 3 & 5 Amend =ent 37, and the Northwestern Utilities expert panel report. More recently, a USGS/NOAA panel conducted a re-evaluation of that earthquake, considering all of theavailableinformation./
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. We require that the Applicant evaluate thte $ pac'tof_thisinformation on the tectonic interpretation and the seismic design bases for the -
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WPPSS-2 Plant and provide the basis for conclusions arrived at as a t
result of this re-assessment.
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- 2. 'Page 2.5-118, Section 2.5.2.1.3 refers to Appendix 2.5.I which is a report of the,results of the USGS microcarthquake network. This 2.
._.._ appendix is not in the ESAR. Provide this appendix as it is critical to a timely completion of our review. Page 2.5-127 mentions the results la E >.Tf the network, from 1975 to t' e present, during which time it has been h
under the management of the University of Washington. If these data
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- are not included-in-Appendi:cxI; please furnish them along with' Appendix I.
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Figure 2.5-39.and the discussion on pages 2.5 121 through 2.5-125. ' Expand
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.this discussion, and include supporting data, to provide more complete 1
tectonic bases for the province boundaries designated on the referenced'
-- d li figure and in the text. - In particular, support why you believe there is h
sufficient justification to establich a tectonic boundary between n' l.
i the northern Cascades and the Columbia Basin province.
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