ML20094N816
| ML20094N816 | |
| Person / Time | |
|---|---|
| Site: | Satsop |
| Issue date: | 08/08/1984 |
| From: | Sorensen G WASHINGTON PUBLIC POWER SUPPLY SYSTEM |
| To: | Knighton G Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20094N819 | List: |
| References | |
| GO3-84-500, NUDOCS 8408160404 | |
| Download: ML20094N816 (2) | |
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Washington Public Power Supply System
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P.O. Box 968 3000 GeorgeWashingtonWay Richland, Washington 99352 (509)372 5000 August 8, 1984 G03-84-500 Docket No.:
50-508 Director of Nuclear Reactor Regulation Attention:
Mr. G.W. Knighton, Chief Licensing Branch No. 3 Division of Licensing U.S. Nuclear Regulatory Commission Washington, D.C.
'20555
Subject:
NUCLEAR PROJECT NO. 3 SUBDUCTION OF JUAN DE FUCA PLATE SUPPLY SYSTEM POSITION
Reference:
NRC Letter, dated May 3, 1983, Thomas M. Novak to R.L. Ferguson, " Request for Additional Information on WNP-3 Safety Review" In the reference, NRC transmitted several questions to the Supply System regarding the potential for and possible magnitude of a large earthquake in the subduction zone beneath WNP-3.
The attached Supply System position paper on the subduction of the Juan de Fuca plate, assessing the present state-of-the-art, focuses attention on the fundamental question; is subduction proceeding seismically or aseismically? As indicated in the position paper, the Supply System believes that the weight of currently available evidence favors aseismic subduction, although recognizing that more work needs to be done to resolve this issue.
In a telephone conversation between the NRC (B.K. Singh and J.K. Kimball) and the Supply System (D.W. Coleman) on August 1, 1984, it was agreed that the Supply System would submit 40+ copies of this letter and attached position paper.
It was also agreed that four (4) copies each of four of the reports referenced in the position paper would be sufficient.
A major objective of the August 23, 1984 meeting is to obtain NRC agree-ment to review the Supply System responses, in accordance with the schedule and plan for the resolution of the subduction issue. This j
objective was also conveyed to Messers. Kimball and Singh during the August 1, 1984 telephone conversation. The Supply System would like to resolve this issue as soon as possible, independent of the present j
extended construction delay.
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Direct r of NRR S Pag 2 Two Subduction of Juan de Fuca Plate The Supply System will be prepared to discuss the position paper with you in the meeting planned for August 23, 1984. We will also be able to discuss our plans for investigation and resolution of the subduction issue. If you have any questions, please contact Mr. D.W. Coleman, WNP-3 Licensing Project Manager, at (206) 482-4428 extension 5436.
f fh FG. C. Sorensen (MD 340)
Manager, Regulatory Programs GCS/DWC/jms Attachment cc: JA Adams - NESCO (763)
ST Algermisson - United States Geological Survey EM Burton - Pacific Power & Light TE Bushnell - Portland General Electric HA Coombs - Geologic Advisory Board RS Crosson - Geol sbic Advisory Board GA Davis - Geologic Advisory Board RD Hill - Puget Sound Power & Light P. Inman - Washington Water Power JA Kelleher - Geologic Advisory Board JK Kimball - NRC I. Mermelstein - Ebasco Services, Inc.
V. Nerses - NRC J. Porrovecchio - Ebasco Services, Inc.
NS Reynolds - Bishop, Liberman, Cook, Purcell & Reynolds BK Singh - NRC J. Sluka - Ebasco Services, Inc.
RB Smith - Geologic Advisory Board D. Smithpeter - BPA F. Swearngin - BPA (399)
DD Tillson - Geologic Advisory Board AA Tuzes - Combustion Engineering, Inc.
BD Withers - Portland General Electric H. Worchel - Ebasco Services, Inc.
US NRC, Document Control Clerk Ebasco Files - Elma WNP-3 Files - 703 E
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