ML20029A094

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Ack Receipt of in Response to Re Allegations Pertaining to Flow Problems & Leaks Associated W/Isolation Valve Seal Water Sys
ML20029A094
Person / Time
Site: Zion  File:ZionSolutions icon.png
Issue date: 01/24/1991
From: Miller H
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To: Reed C
COMMONWEALTH EDISON CO.
References
NUDOCS 9102040055
Download: ML20029A094 (2)


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NUCLEAR HEGULATORY COMMisslON nEctoN Hi

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JAN 2 41991 L~

Docket No. 50-295 Docket No. 50-304 Commonwealth Edison Company ATTN: Mr. Cordell Reed Senior Vice President Opus West III 1400 Opus Place Downers Grove, IL 60515 Centlemen:

Thank you for your letter dated November 30, 1990, in response to our October 31, 1990 letter co7cerning allegations pertaining to flow problems and Icaks associated with the isolation valve seal water (IVSW) system at the Zion Station (Allegation Rl!I-f0-A-0100),

in our letter, we requested that you fully analyze the allegation end take all actions that you ceem aperopriate to resolve this issue and submit the results of your inver.tigation to the NRC.

Your response indicated that the allegation is substantia *.ed with regard to the flow and backleakage problems, tiowever, the problems with the IV5W system were being identif fed and corrected by your existing progiams. We found your-investigation to be sufficient to support your conclusions and have no additional questions regarding this natter. Accordingly, Olegation Rill-90-A-0100 is considered closed.

We request that you retain the supporting documentation for your investigation of this allegation for a minimum of one year from the date of this letter, in accordance with 10 CFR 2.790 of the Commission's regulatlans, a copy of this letter will be placed in the NRC Public Document Room.

Your cooperation is appreciated.

Sincerely, k.

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WQ-L ubert J. fliller, tirac-j Division of Reactor Projects SeeAttachedDistribQi,on Ye' 9102040055 910124

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Commonwealth Edison Company 2

Distribution cc:

H. Wallace, Vice President, PWR Operations T. Kovach, Nuclear Licensing Manager T. Joyce, Station Manager R. Chrzanowski, Regulatory Assurance Supervisor DCD/DCB (RIDS)

OC/LFDCB Resident inspectors, Byron, Braidwood, Zion Richard Hubbard J. W. McCaffrey, Chief, Public Utilities Division liayor, City of Zion

-C. Patel, LPM, NRR Robert Newmann, Office of Public

-Counsel, State of Illinois Center e

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