ML20010J352
| ML20010J352 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 09/25/1981 |
| From: | Sternberg D, Zwetzig G NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | |
| References | |
| PNO-V-81-049, PNO-V-81-49, NUDOCS 8109300354 | |
| Download: ML20010J352 (1) | |
Text
,
- (i M
PRELIMINARY h0TIFICATION OF EVENT OR UNUSUAL OCCURRENCE--PNO-V-81:49 D TE: Sept. 25, 1981 e
actL This preliminary notification constitutes EARLY notice of events of POSSIBLE safety or public interest significance.
The information is as initially received fithout verification or evaluation, and is basically all that is known by IE staff on th s date.
Facility: Southern Califoria Edison Company Lic9nsee Emergency Classification:
/ Notification of Unusual Event San Onofre Nuclear Generating Station
/ Alert Unit No. 1 San Clemer.te, California
/
Site Area Emergency Docket No. 50-206
/
General Emergency x
Not Applicable
Subject:
CONTAINMENT SPRAY INITIATED BY FAILURE OF POWER SUPPLY At about 8:30 a.m., 9/25/81, with the reactor at cold shutdown, failure of a power supply caused initiation of the "A" train of the Containment Sprsy Systete. This caused discharge of borated water from the Refueling Water Storage Tank into the reactor building for about ten seconds, at which time the spray was manually terminated by a Control Room Operator.
The total quantity of water discharged into the cont 6i.nment is estimated to be about 100 gallons.
j' Eightworkerswereinsidecontainmentatthetimeo[theevent,however,therewasto apparent injury to personnel or damage to equipment. Minor contamination of personnel has been detectad and it is planned to perform wh 1e body counts of the affected 9
individuals.
/
The licensee and the Resident Inspector are con inuing to investigate the cause of this event.
(
Media interest is not expected.
Neither the licensee nor the NRC plans to issue a news release.
Region V (San Francisco) received notification of this occurrence from the Resident Inspector at 9:30 a.m. on 9/25/81. Th;s information is current as of 9:55 a.m. on 9/25/81.
CONTACT:
G. Zwetzig, 463-3749 D. Sternberg, 463-3737 e
r 4(/ftpN Styg g198%
12 f
m
't f
z " s.y f!D 4
DISTRIBUTION:
H. St.
/o.59 /.
MNBB to WF Phillips f a:55vE/W /m54' Willste ri:01 / endow to:5 V L
Chairman Palladino ED0 NRR IE NMSS sm OIA M
Comm. Gilinsky AE0D RES Comm. Bradford PA Air Rights it o d
/
MAIL:
Comm. Ahearne MPA SP INPO Comm. Roberts ELD NSAC
/
IE:TAS ACRS ADM: Doc.Mgt.Br.
SECY Regional Offices T 7F gT 6 NSOC: S. Ebbins CA 8109300354 810925