ML20137D621

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Ack Receipt of .Date of NRC Receipt of Dames & Moore Foundation Conditions Rept Requested.Questions Re Site Regional Epicenter Map Submitted.Status of Site Seismic Reevaluation Discussed
ML20137D621
Person / Time
Site: North Anna, 05000000
Issue date: 01/07/1978
From: Allen J
NORTH ANNA ENVIRONMENTAL COALITION
To: Case E
Office of Nuclear Reactor Regulation
Shared Package
ML20136A555 List: ... further results
References
FOIA-85-363 NUDOCS 8508220524
Download: ML20137D621 (1)


Text

NdRTH ANNA ENVlRONMENTTL COAUTNN P.O. BOX 3951 Mr. Edson G. Case, Acting Director CilARLOTTESVILLE, VIRGINIA 22903 ,

Nuclear Reactor Hegulation (717]S33-7694 or, (804)293-6039 U. S. Nuclear Hegulatory Commission January 7, 1978 " N Y'lunIs'I b Washington, D. C. 20555 nriarcrest cardens flershey, PA 170M

Dear Mr. Case:

Thank you for your letter of December 27, 1977 Since it arrived in Charlottesville on December 30, I was not able to thank you in person on December 29 At another time, I hope to have an opportunity to dis-cuss its content with you. For today, let me ask you just one additional clarifying question: upon what date did your office or the AEC receive the Dames & Moore Foundation Con-.

ditions Heport of ) fay 8, 1969?

The purpose of today's letter in to call your attention to VEPCO's REGIONAL EPICENTER MAP--Period: Janua ry 21, 19716 through Au:cust 1, 1977.

o The map would appear to provide undeniable evidence of the on-going seismic influence of lake Anna -- most particu-larly at the point where the lake is intersected by Neuschel's or the Spotsylvania Lineament, a point marked by a cluster of 16 1 micro-earthquakes.

Does your position agree with that of VEPCO -- that the I cause of the cluster " remains obscure"? If so, what is the logical step that translates obscurity into safety?

Should it not be the NHC position that such an anomaloun cluster of 16 micro-earthquakes should be studied in relation 1

to regional structures -- particularly the 38th parallel frac-ture zone and the Stafford and Neuschel'n (Spo tsylvania)

Faults >-- before monitoring is discontinued and approval given? ,

IIan the NHC Division of Site Safety looked into the Na-tional Science Foundation 1977 studies of the Neuschel struc-ture -- studies that move toward its confirmation as a regional fault? You may recall that Dr. Donald Wise, Piedmont geologist from the University of Massachusetts, expressed reservations about defending the North Anna site if the Neuschel's Lineament were actually a fault.

f are its IftheNHChas'notlookedintothesemattersthoroug[hly, licensing actions nn act of faith rather than o proof?

o

u)

(D A second purpose of today's letter la to ask the status of the SEISMIC HE-EVALUATION OF NORTil ANNA requested on April 22, y g 1977 by NHC 's J. P. Kn i gh t , Assistant Director for Engineering, gg o , DSS. Did the NRC Staf f ever apprise the Atomic Safety and Li-

. y censing floard of the existance of this re-evaluation called

-s "a major milestone in the completion of the licensing action"?

Given (tn licenn tnic significance _, how can you recommend licensing

%j ki of North Anna before its completion? 'ihank you again.

Sincerely, j j

. ine Allen (Hrs. P. M.)

cc: Sen. Gary Hart President, NAEC Rep. John !!oss

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