ML19329C146

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Submits Schedule Info Re ECCS in Response to NRC . Info Requested 750609 Re Partial Loop Operation to Be Submitted by 750829.Break Spectrum & Potential Boron Precipitation Info Provided in B&W Rept BAW-10105
ML19329C146
Person / Time
Site: Davis Besse Cleveland Electric icon.png
Issue date: 07/21/1975
From: Roe L
TOLEDO EDISON CO.
To: Schwencer A
Office of Nuclear Reactor Regulation
References
NUDOCS 8002120877
Download: ML19329C146 (2)


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S NRC DISTRIBUTION FOR PART 50 DOCKET MATERIAL (TEMPORARY FORM)

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FROM: Toledo Edison DATE OF DOC DATE REC'D LTR TWX RPT OTHER Toledo, Ohio 7-21-75 7-25-75

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ORIG CC OTHER SENT NRC PDR v-m r A. Schwencer 1 Signed SENT LOCAL PDR C

CLASS UNCLASS PROPINFO INPUT NO CYS REC'D DOCKET NO:

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50-346 DESCRIPTION:

ENCLOSURES:

Re our ltr. of 7-7-75, concerning ECCS evalu.

7rovidin:; schedule info..& ne their ltr. of 7-9-75 & our ltr. of 5-9-75, ?artial Loop Oper.

add'l info by S-29-75.. 3reak Spectrum info &

',. - Q' Potential Boron Precip. Info. been provided in B & 'l Topical R9t. 1 10105... Sin;;1e Failurc f

Analy, & t e basis for containnent Pressure i

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A. Schwencer, Chief Light Water Reactors Branch 2-3 q,q).P h-[.

Division of Reactor Licensing U.S. Nuclear Regulatory Cocnission Washington, D.C.

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Dear Mr. Schwencer:

In response to your letter of July 7, 1975, concerning the ECCS evaluation for Davis-Besse Nuclear Power Station Unit No. 1, we are providing the following scheduling information.

The requested info mation pertaining to Partial Loop Operation corresponds to part 1 of your June 9, 1975, letter and as stated in our letter of July 9, 1975, will be submitted to the NRC as a response to your " Request for Additional Information #15.l.2" by August 29, 1975.

The Break Spectrum information and the Potential Baron Precipitation information has been provided in B&W Topical Report No. 10105.

The Single Failure Analysis and the basis for Containment Pressure calcu-lations will also be addressed in a submittal to the NRC by August 29, 1975.

The requested information concerning Submerged Valves corresponds to part 2 of your June 9, 1975, letter. This information was provided in our letter of July 9, 1975.

Very truly yours, dh a/2 THE TCLEDO EDISON CCMPANY EDISON PLAZA 300 MACISCN AVENUE TOLEDO, CHIO 43652 IUbD

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