ML20198S890
| ML20198S890 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 01/04/1999 |
| From: | Stetka T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | Ray H SOUTHERN CALIFORNIA EDISON CO. |
| Shared Package | |
| ML20198S894 | List: |
| References | |
| 50-361-98-14, 50-362-98-14, NUDOCS 9901120034 | |
| Download: ML20198S890 (5) | |
See also: IR 05000361/1998014
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- UNITED STATES
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NUCLEAR REGULATORY COMMISSION
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REGION IV
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611 RYAN PLAZA DRIVE, SUITE 400
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ARUNGTON. TEXAS 76011-8064 .
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January 4,199[
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- Harold B. Ray, Execut%*e Vice President
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Southem Califomia Edison Co.
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c San Onofre Nuclear Generating Station -
P.O. Box 128
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San Clemente, California 92674-0128
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. SUBJECT: NRC INSPECTION REPORT NO. 50-361/98-14; 50-362/98-14 AND NOTICE OF
VIOLATION
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l Dear Mr. Ray:
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- From October 19 through November 6,1998, a safety system eng!neering inspection and a
Jafety evaluation inspection were conducted at your San Onofre Nuclear Generating Station,
. Units 2 and 3 reactor facilities. Additional in-office review of information provded by your staff
was conducted following completion of the onsite inspection and the exit interview. On .
= December 17,1998, . the results of this inspecticn were discussed with Jeff Cook of your staff.
The enclosed report presents the results of that inspection.
The NRC assessed the capability of the component cooling water system and_supportir.g -
control systems. On the basis of our review, we concluded that the component cooling water -
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. system was capable of performing its safety function. We also noted that your procedure for
. the safety evaluation program was not consistent with NRC's interpretation of 10 CFR 50.59,
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" Changes, Tests, and Experiments." However, your procedure included additional
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management controls for the areas of exception and the NRC did not identify any cases where
- these areas of exception had resulted in your staff inappropriately approving changes to the
- facility as described in the Updated Final Safety Analysis Report.
Based on the results of this inspection, the NRC has determined that a violation of NRC
requirements _ occurred. Since original construction, the design basis to properly classify the
. electrical control of component cooling water miniflow control valves that was specified in the
license application, was not properly translated into the plant design. The violation is cited in
the enclosed Notice of Violation (Notice) and the circumstances surrounding the violation are
described in detail in the enclosed report.- This violation is of concern because your staff had
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two prior opportunities to correct this issue. Please note that you are required to respond to this
letter and should follow the instructions specified in the enclosed Notice when preparing your
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' response. The NRC will use your response, in part, to determine whether further enforcement
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'; action is necessary to ensure compliance with regulatory requirements.
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i One unresolved item was identified conceming control of the thermal performance of the
auxiliary salt water / component cooling water heat exchangers.' This matter is discussed in
Sectio _n E2.2 of the enclosed inspection report. This item is unresolved pnding NRC review of
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the results of your planned testing to better estimate the total tube wall fouling of these heat
< exchangers and your evaluation of past operability. Additional inspection is also planned to
confirm that the_ mathematical models used by your staff to analyze the impact of macro-fouling
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9901120034 990104
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ADOCK 05000361
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Southern California Edison
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In accordance with 10 CFR 2.790 of the NRC's " Rules of Practice," a copy of this letter, its
enclosures, and your response will be placed in the NRC Public Document Room.
Should you have any questions concerning this inspection, we will be pleased to discuss them
. with you.
Sincerely,
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h Thomas F. Stetka, Acting Chief
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Engineering Branch
Division of Reactor Safety
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Docket Nos.: 50-361;50-362
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Enclosures:
2. NRC inspection Report
50-361/98-14;50-362/98-14
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cc w/ enclosures:
Chairman, Board of Supervisors
County of San Diego
1600 Pacific Highway, Room 335
San Diego, California 92101
Alan R. Watts, Esq.
Woodruff, Spradlin & Smart
701 S. Parker St. Suite 7000
,
- Orange, California 92868-4720
Sherwin Harris, Resource Project Manager
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Public Utilities Department
City of Riverside
3900 Main Street
Riverside, California 92522 '
R. W. Krieger, Vice President
Southem California Edison Company
San Onofre Nuclear Generating Station
P,0. Box 128
San Clemente, California 92674-0128
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Southem Califomia Edison-
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Stephen A; Woods, Senior Health Physicist -
- Division of Drinking Water and
Environmental Management .
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r Nuclear Emergency Response Program -
Califomia Department of Health Services
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P.O. Box 942732, M/S 396 -
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Sacramento, Califomia 94334-7320
Mr. Gary D. Cotton, Sr. Vice President
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Energy Supply. .
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San Diego Gas & Electric Company
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1 P. O. Box 1831 -
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. San Diego, Califomia ' 92112-4150 -
Mr. Steve Hsu
- Radiological Health Branch
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State Department of Health Services
P.O. Box 942732
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Sacramento, California 94234
- Mayor
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City of San Clemente
100 Avenida Presidio
San Clemente, California 92672
Mr. Truman Burns \\Mr. Robert Kinosian
- California Public Utilities Commission
505 Van Ness, Rm. 4102
~ San Francisco, California 94102 -
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DOCUMENT NAME: R:\\_SO23\\SO814RP.LJS
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