ML19308A355

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Forwards Seismic Network Annual Rept, Nov 1977-Oct 1978
ML19308A355
Person / Time
Site: 05000514, 05000515
Issue date: 04/12/1979
From: Lindblad W
PORTLAND GENERAL ELECTRIC CO.
To: Varga S
Office of Nuclear Reactor Regulation
Shared Package
ML19308A356 List:
References
NUDOCS 7906200481
Download: ML19308A355 (1)


Text

1 Portland General EledricCompany s wr,

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1 W:i.am J Loodac Vice Fesdent April 12, 1979 l

Pebble Springs Nuclear PIAtlt 4

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l Director of Nuclear Reactor Regulation go q

l ATTN:

Mr. S. A. Varga, Chief Q

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l Light Water Reactors Branch 4 c,

Division of Project Management G

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U. S. Nuclear Regulatory Commission Washington, D. C.

20555

Dear Sir:

l We have enclosed for your information five (5) copies of a report by Teknekron Energy Resource Analysts (TERA) Corporation, entitled Pebble Springs Seismic Network Annual Report November 1977-October 1978, dated January 1979. This annual report is a presentation of seismic data recorded by the Pebble Springs Seismic Network Monitoring Program for g

the period November 1977-October 1978, and includes comparative infor-mation from the previous report periods of November 1976-October 1977 and November 1975-October 1976. The Pebble Springs Seismic Network Monitoring Program is intended to provide continuous baseline data on I

seismicity of the site area for confirmatory and determinative purposes.

This third annual report is being provided at this time because suffi-cient data has accumulated to meaningfully augment existing information l

I about the seismicity of the Pebble Springs site. We hope that this information will be useful to you.

1 Sincerely, l

W. M _ ad

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l Vice President Engineering-Construction c:

Director w/ enclosure State of Oregon Department of Energy State Geologist w/ enclosure State of Oregon Department of Geology 0b D

and Mineral Industries I,@I f

790620048I n.: snwm on,n

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