ML20062H372
| ML20062H372 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 11/08/1990 |
| From: | Zimmerman R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| To: | Ray H SOUTHERN CALIFORNIA EDISON CO. |
| Shared Package | |
| ML20062H375 | List: |
| References | |
| NUDOCS 9012040278 | |
| Download: ML20062H372 (3) | |
See also: IR 05000206/1990011
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NUCLEAR REGULATOMY COMMISSION
REGON V
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1460 MARIA LANE, SUITE 210
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WALNUT CREEK CALIFORNIA 94596
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NOV - B 1990
Docket No.
50-206
Southern California Edison Company
Irvine Operations Center
23 Parker Street
Irvine, California 92718
Attention: Mr. Harold B. Ray, Vice President
Nuclear Engineering, Safety and Licensing
Gentlemen:
SUBJECT: EMERGENCY OPERATING INSTRUCTIONS INSPECTION AT SAN ONOFRE
NUCLEAR GENERATING STATION UNIT 1
This letter forwards the results and conclusions of a special team inspection
conducted by the NRC of activities authorized by NRC Operating License No'.
DPR-13 for San Onofre Unit 1.
This inspection was conducted on September 13
1990 through September 28, 1990. At the conclusion of the inspection, the
findings were discussed with Mr. H. E. Morgan and other members of your staff
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identified in the enclosed inspection report.
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The purpose of this inspection was to verify that your Emergency Operating
Instructions.(E01s) are technically correct; that the specified actions can
be accomplished using existing equipment, controls, and instrumentation; and
that the available procedures provide the operators with an effective tool to
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manage and mitigate potential accidents. The areas examined during the
inspection are identified in the attached inspection report. The inspection
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consisted of a selective examination of procedures, procedure walk-throughs in
the plant with operations personnel, and interviews with a broad selection of
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your operations, procedure writing, and training staffs.
Through direct observation of selected procedures during plant walk-throughs we
have concluded that your operating staff can effectively use the E0!s to manage
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and mitigate serious operational events, and that the E0!s are, for the most
part, technically correct.
However, the inspection identified numerous deficiencies in the E01s, and
areas where the verification and validation of the E01s was not complete.
These specific items are described in the enclosed inspection report for your
staff to review and correct, as appropriate. These items are based on a
relatively small sample of your E01s. Consequently, as you develop a
corrective _ action plan, we expect that your staff will expand upon this
list both qualitatively and quantitatively. General areas that need to be
specifically addressed include improving the verification and validation
program, and the writer's guide.
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9012040270 901100
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A comitment was solicited and agreed to by your staff to provide notification
of the Resident Inspectors if a significant change to an E01 setpoint occurred
as a result of an on-going review of instrument loop inaccuracies.
It was
observed during the Exit Meeting that any change to the E01s from this review
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may result in a significant change to the procedures, and thereby warrant
further NRC review.
We request that you r: ovide to us, within 30 days of the receipt of this
letter, a corrective action plan that addresses the deficiencies identified in
the enclosed inspection report and attachment as well as your assessment into
why the deficiencies noted were not identified as part of your verification
and validation program.
No violations of NRC requirements were identified within the scope of this
inspection.
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In accordance with 10 CFR 2.790(a), a copy of this letter and the enclosures
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will be placed in the NRC Public Document Room,
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The response requested by this letter and its enclosures is not subject to the
clearance procedures of the Office of Management and Budget as required by the
Paperwork Reduction Act of 1980, PL 96-511.
Should you have any questions concerning this inspection, we will be pleased to
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discuss them with you.
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Sincerely,
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R. P
immerman, Director
Division of Reactor Safety and Projects
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Enclosures:
1.
Inspection Report 50-206/90-11
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2.
Attachment A to Report 50-206/90-11
cc w/ enclosures (1) and (2)
D. J. Fogarty, Executive Vice President
H. E. Morgan, Vice President and Site Manager
R. L. Krieger Jr., Station Manager
State of CA
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