PNO-III-80-237, on 801225,unplanned Gaseous Release Occurred During Transfer of Waste Gas to Holdup Tank.Caused by Leaking Valve.Investigation Continuing
| ML19341C900 | |
| Person / Time | |
|---|---|
| Site: | Zion File:ZionSolutions icon.png |
| Issue date: | 12/29/1980 |
| From: | Davis A, Fisher W, Lovendale P NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| References | |
| PNO-III-80-237, NUDOCS 8103040445 | |
| Download: ML19341C900 (1) | |
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PRELI:!INARY NOTIFICATION Date: 12/29/80 PRELI:!INARY NOTIFICATION OF E'.7ENT OR UNUSUAL OCCURRENCE--PS0-III 80-237 This o.reliminary notification constitutes EARLY notice of events of POSS@IE ' a[ -
safety or public interest significance.
The information presented is/as -
'e f,, ' o \\,
initially received without verification or evaluation and is basical,fy2611 1
that is known by IE staff as of this date.
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's FACILI'"Y :
Commonwealth Edison Company f
g o
Zion 1 and 2 v,..
Zion, IL
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SUBJECT:
UNPLXiMED GASEOUS RELEASE
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Region III (Chicago) was infor-ed that an unplanned gaseous release occurred at 2:30 a.m. on 12/ 25/80.
The total release was about six curies of noble gas and lasted for about five hours.
The maxi =um release rate was about 1000 uCi/sec, about 2% of the technical specification instantaneous release limit.
No particulates or halo gens were released.
The release occurred during transfer of waste gas to a holdup tank.
A leaking valve was the apparent cause o f the release.
The licensee is continuin'g to investigate the problem.
There has been no media interest.
No press release is planned by the licensee or the NRC at this time.
The State of Illinois is being notified.
The Resident Inspector is reviewing the matter on site with support by telephone f rom a regional Padiation Specialist.
Region III received notification of this event by telephone from the NRC Watch Of ficer at 3:10 a.m. on 12/25/80.
This information is current as of 1:00 p.m. December 29, 1980.
Con ta c t :
P. Lovendale, 384-2623; W. L.
Fisher, 384-2618; A.
B. Davis, 384-2510.
Distribution:
Transmitted H St g j Chairman Ahearne Commissioner !fendrie S. J. Chilk, SECY Ccmmissioner Gilinsky Comraissioner Bradford C. C. Kanrne re r, CA ACRS (For Distribution)
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