ML13312A801
| ML13312A801 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 12/12/1994 |
| From: | Collins S NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | Ray H SOUTHERN CALIFORNIA EDISON CO. |
| Shared Package | |
| ML13312A802 | List: |
| References | |
| NUDOCS 9504210295 | |
| Download: ML13312A801 (4) | |
See also: IR 05000206/1994023
Text
NUCLEAR REGULATORY COMMISSION
REGION IV
611 RYAN PLAZA DRIVE. SUITE 400
ARLINGTON. TEXAS 760118064
December 12, 1994
Docket:
50-206
License:
Southern California Edison Co.
Irvine Operations Center
ATTN:
Harold B. Ray, Senior Vice
President, Power Systems
23 Parker Street
Irvine, California
92718
SUBJECT:
NRC INSPECTION REPORT 50-206/94-23
This refers to the special, announced team inspection conducted by NRC on
October 3-6, 1994.
The multidisciplined team was led by Mr. G. Michael
Vasquez of this office and consisted of individuals from NRC's Region IV
Office, the Office of Nuclear Materials Safety and Safeguards, and the Office
of Nuclear Reactor Regulation.
The inspectors are identified in the attached
report. The inspection included a review of activities authorized for your
.San
Onofre Nuclear Generating Station Unit I facility. At the conclusion of
the inspection, the findings were discussed with those members of your staff
identified in the enclosed report.
The inspection was conducted as part of an NRC initiative to ensure the safety
of spent fuel storage systems of shutdown reactors throughout the country.
Areas examined during the inspection are identified in the report. Within
these areas, the inspection consisted of selective examinations of procedures
and representative records, interviews with personnel, and observation of
activities in progress. No violations or deviations were identified.
The team concluded that your management controls, safety review process, and
self-assessment programs have been functional and effective. The material
condition of the plant was good.
Spent fuel pool water chemistry was within
technical specifications, and water clarity was excellent. The team also
found that licensee management had implemented oversight and self assessment
programs that were functional and appropriate for the shutdown and permanently
defueled condition of the plant. The licensee's actions and commitments in
response to Bulletin 94-01 were appropriate.
The team classified two areas as licensee strengths. The first was the
licensee's spent fuel accountability. This was important since spent fuel
from Unit I was also located in the spent fuel pools of Units 2 and 3. The
second strength was the licensee's training for certified fuel handlers and
for spent fuel bridge crane operators.
The training was found to be
comprehensive.
9504210295 941212
ADOCK 05000206
0
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.
Southern California Edison Co.
-2
However, the team identified one concern related to the long-term integrity of
the spent fuel pool liner. The team noted that because of the design of the
spent fuel pool leak detection well and the way licensee procedures were
written, poor quality water (perhaps from groundwater or as a result of
leaching from the concrete) could remain in contact with the outside of the
stainless steel spent fuel pool liner for extended periods of time. The team
was concerned that the licensee had not evaluated the long-term metallurgical
effects to the stainless steel from long-term contact with poor quality water.
As a result of the team's concern, the licensee committed to taking immediate
action by modifying its procedures to prevent waters from contacting the liner
until the condition could be evaluated, to performing chemical analysis of
water samples from the leak detection well, and to evaluating the potential
degradation that could occur to the stainless steel liner. The licensee also
committed to providing the NRC Region IV office with a copy of the results of
its evaluation within 90 days of issuance of this inspection report.
In accordance with 10 CFR 2.790 of the NRC's "Rules of Practice," a copy of
this letter and its enclosures 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,
S
ITMrector
"Division of Radiation Safety
and Safeguards
Enclosure:
Appendix - NRC Inspection Report
50-206/94-23
cc w/enclosure:
Southern California Edison Company
San Onofre Nuclear Generating Station
ATTN: R. W. Krieger, Vice President
P. 0. Box 128
San Clemente, California 92674-0128
San Diego Gas & Electric Company
ATTN:
Robert G. Lacy, Manager
Nuclear Department
P. 0. Box 1831
San Diego, California 92112
Southern California Edison Co.
Mayor
City of San Clemente
100 Avenida Presidio
San Clemente, California 92672
Chairman, Board of Supervisors
County of San Diego
1600 Pacific Highway, Room 335
San Diego, California 92101
Radiologic Health Branch
State Department of Health Services
ATTN:
Mr. Steve Shu
P. 0. Box 942732
Sacramento, California
94234
California Department of Health Services
ATTN:
Dr. Harvey Collins, Chief
Division of Drinking Water and
Environmental Management
P.O. Box 942732
.
Sacramento, California 94234-7320
Bechtel Power Corporation
ATTN:
Richard J. Kosiba, Project Manager
12440 E. Imperial Highway
Norwalk, California 90650
Southern California Edison Co.
-4
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