ML13333A730
| ML13333A730 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 02/17/1981 |
| From: | Haynes J SOUTHERN CALIFORNIA EDISON CO. |
| To: | Engelken R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| 81-41, IEB-80-10, NUDOCS 8103231107 | |
| Download: ML13333A730 (2) | |
Text
Southern California Edison Company P. 0. BOX 800 2244 WALNUT GROVE AVENUE ROSEMEAD. CALIFORNIA 91770 J.
G. HAYNES February 17, 1981 TELEPHONE MANAGER OF NUCLEAR OPERATIONS (213) 572-1742 U. S. Nuclear Regulatory Commission Office of Inspection and Enforcement Region V 1990 North California Boulevard Suite 202, Walnut Creek Plaza Walnut Creek, California 94596 Attention: Mr. R. H. Engelken, Director DOCKET No. 50-206 SAN ONOFRE -
UNIT 1
Dear Sir:
IE BULLETIN 80-10 Contamination of Nonradioactive Systems and Resulting Potential for Unmonitored, Uncontrolled Release of Radioactivity to Environment Reference is made to our July 7, 1980 letter to you concerning this subject.
We have re-reviewed potential release paths to the environment from normally nonradioactive systems and have included two additional paths:
- 1. Oily waste sump
- 2. Yard drain sump The source of contamination to the oily waste sump could be from steam generator tube leakage or safety injection line leakage in and around the turbine plant building. The source of leakage to the yard sump could be from leakage or spillage from components in the controlled area which may overflow from the roof of the reactor auxiliary building or the refueling water storage tank and associated safety injection system lines and components.
Station procedures are being revised to include a sampling and analysis schedule for these two additional sources. Minimum detectable activities for these analyses and action levels will be determined. In addition, a design modification has been initiated to procure monitors for theseipathways. We are evaluating equipment lead times and engineering scheduling and will advise you of a completion date by March 31, 1981.
1 810323 0 7.1(l
~
Mr. R. H. Engelken
-2 The specific actions taken in response to this bulletin and the results of engineering evaluation performed are available for your review during future onsite inspections.
Please contact me should you need further information concerning this matter.
Sincerely, cc:
L. F. Miller (NRC Site Inspector - San Onofre Unit 1)