ML17037B942

Letter Confirming September 7, 1976 and Early October Telephone Conversations Concerning Features in the Reheater Bay Area and a December 2, 1976 Call to Inform of More Recent Observations Which May Suggest Possible Post ...

ML17037B942
Person / Time
Site:	Nine Mile Point
Issue date:	12/13/1976
From:	Rhode G Niagara Mohawk Power Corp
To:	O'Reilly J NRC Region 1
References
Download: ML17037B942 (4)

Text

U.S. NUCLEAR REGULATORY CO~SION DOCKET NUMBER NRC FORM 199

{2.78)

C 56-410 FILE NUMBER

'NRC DISTRIBUTION FQR PART 50 DOCKET MATERIAL TPI J.P.O'REILLY FROM:NIAGARA MOHAWK POWER CORP. DATE OF DOCUMENT SYRACUSE, N.Y. 12:-13-76 G.K. RHODE DATE RECEIVED 12-27-76 C3LETTER ." 6 NOTO R I 2 E D PROP INPUT FORM NUMBER OF. COPIES RECEIVED Pj HORIGINAL E3 UN C LASS I F I E D ~ ~

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r, DESCRIPTION ENCLOSU RE LTR. CONFIRMKNG TELEPHONE CONVERSATION 08 9 CONCERNING A FEATURE IN THE REHEATER BAY AREA, AND A SECOND COVERSATION CONCERNING ANOTHER FEATURE IN THE COOLING TOWER EXCAVATION A.CKNOWLEDGEQ.

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NINE MILE PT I'/2 v-W SAFETY FOR ACTION/INFORMATION SAB 12-30-76 ASSIGNED AD:

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GERALD K. RHODE VICE PRESIDENT De emb 3, 1976

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yI~NN IISN18 Region I U. S. Nuclear Regulatory Commission Attn: James P. O'Reilly, Director 631 Park Avenue King of Prussia, Pennsylvania 19406 Re: Nine Mile Point Unit 2 Docket No. 50-410

Dear Mr. O'Reilly:

We had previously informed members of your staff and also the Division of Nuclear Reactor Regulation personnel of certain geologic features at our Nine Mile Point Unit 2 con-struction site. The first occasion was September 7, 1976 con-cerning a feature in the reheater bay area. The second occasion was in early October regarding another feature in the Cooling Tower excavation. This letter is to confirm those telephone conversations.

We also called on December 2, 1976 to inform you of more recent observations which may suggest possible post-glacial vertical displacement of sediments coincident with a pre-glacial fault.

We are continuing to investigate this feature and will keep you advised of significant findings.

Very truly yours, Niagara Mohawk Power Corporation c~~ ~

raid K. 6 e ice Pre dent-Engineering cc: Director Nuclear Reactor Regulation

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