ML20059M682
| ML20059M682 | |
| Person / Time | |
|---|---|
| Site: | Zion File:ZionSolutions icon.png |
| Issue date: | 09/24/1990 |
| From: | Miller H NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Reed C COMMONWEALTH EDISON CO. |
| Shared Package | |
| ML20059M684 | List: |
| References | |
| NUDOCS 9010050194 | |
| Download: ML20059M682 (2) | |
See also: IR 05000295/1990018
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SEP 2 41990
Docket No. 50-295
Docket No. 50 304
Commonwealth Edison Company
ATTN: Mr. Cordell Reed
Senior Vice President
Opus West III
1400 Opus Place - Suite 300
Downers Grove, IL 60515
Gentlemen:
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This letter refers to the special safety inspection conducted by
Mrs. S. D. Burgess and other members of this office on July 30 through
August 3, 1990.
This inspection covered activities at the Zion Nuclear
Generating Station, Units 1 and 2, as authorized by NRC Operating Licenses No.
DPR 39 and No. DPR-48. We discussed the inspection findings with Mr. T. Joyce
and others of your staff at the conclusion of the inspection.
This inspection was conducted in response to significant Diagnostic Evaluation
Team (DET) inspection findings regarding the operability of the service water
(SW) system. We also gained insights into the pervasiveness of the DET
findings by assessing the operability of another similar system, component
cooling water (CCW).
The enclosed copy of our inspection report identifies specific areas examined
during the inspection. Within these areas, we selectively examined procedures
and representative records, made observations, and conducted interviews with
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your personnel.
No violations of NRC requirements were identified during the
course of this inspection.
Overall, we concluded that the SW and CCW systems were operable.
However,
several weaknesses were noted with the design and operating configuration of
both systems.
For example, we noted: Techr.ical Specifications-which permit
operation with the SW crosstie valves closed in contradiction to the FSAR
description of the system; SW flow instrumentation inaccuracies that could
preclude proper water flow balancing of essential equipment; qualitative
surveillance testing of the CCW system that could preclude early detection of
component failures; and lack of operator guidance in Abnormal Operating
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Procedures to align the CCW system in a split system if an active or passive
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failure occurred within the system. These weaknesses are identified in our
report as unresolved items 01 and 03-05. We request that you reply in writing
to these items within 30 days.
In your reply, we request that you also
address the programmatic weakness noted in Paragraph 4 regarding CCW pump
maintenance.
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Commonwealth Edison Company
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In accordance with 10 CFR 2.790 of the Commission's regulatioas, a copy of
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this letter and the enclosed inspection report will be placed in the NRC
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Public Document Room.
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The responses directed by this letter are not subject to the clearance
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procedures of the Office of Management and Budget as required by the Paperwork
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Reduction Act of 1980, PL 96 511.
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We will gladly discuss any questions you have concerning this inspection.
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Sincerely,
ORIGlttAL slGl:ED DY liUBERI J. taill.ER
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H. J. Miller, Director
Division of Reactor Safety
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Enclosure: Inspection Reports
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No. 50 295/90018(DRS);
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No. 50 304/90020(DRS)
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cc w/ enclosures:
M. Wallace, Vice President,
PWR Operations
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T. Kovach, Nuclear
Licensing Manager
T. Joyce, Station Manager
DCD/DCB (RIDS)
Licensing fee Management Branch
Resident inspector, Zion,
Braidwood, Byron
Richard Hubbard
J. McCaffrey, Chief, Public
Utilities Division
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Mayor, City of Zion
Chandu Patel, Project
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Manager, NRR
Robert Newmann, Assistant Director
State of Illinois
N. Wagner, NRR
A. Gibson, Ril
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