ML20249A089
| ML20249A089 | |
| Person / Time | |
|---|---|
| Site: | Fort Saint Vrain  |
| Issue date: | 01/23/1978 |
| From: | Jennifer Davis, Sniezek J, Thornburg H NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| To: | |
| References | |
| PNO-78-011, PNO-78-11, NUDOCS 9806160043 | |
| Download: ML20249A089 (1) | |
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__ _ PRELIMINARY NOTIFICATION
(; p January 23, 1978
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PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE--PNO-78-11 This preliminary notification constitutes EARLY notice of an event of POSSIBLE safety or public interest significance.
The information presented is as initially received without verification or evaluation and is basically all that is known by IE staff on this date.
Facility: Public Service Company of Colorado Ft. St. Vrain Nuclear Power Plant Platteville, Colorado
Subject:
RELEASE OF RADI0 ACTIVE GASEOUS MATERIAL Public Serivce Company of Colorado has reported to the Nuclear Regulatory Commission that at about 9:30 a.m. (MST) today there was a release of gaseous radioactive material offsite from the Ft. St. Vrain Nuclear Power Plant near Platteville, Colorado. The cause of the release is reported to be a failure of a buffer seal in the helium circulation system. This resulted in the loss of some of the helium coolant. The extent of the release of radioactive meterial still is being evaluated.
The release was terminated at 11:30 a.m. (MST).
The plant is shutdown
- 9 and the fuel is being cooled.
The site has been closed, and is fully manned.
NRC inspectors from Dallas are flying to the site and should O
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q-arrive at about 3:30 p.m. MST.
! 7' The licensee has reported that the stack monitor read 20 to 30 times the normal rate for about two hours.
The level of radiation exposures gj offsite have not yet been determined.
Preliminary surveys by the licensee 4
have shown no detectable' radioactive contamination offsite.
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Media interest has been expressed.
A NRC press release has been issued.
NRC, Region IV, (Dallas) was informed of this event' by telephone by Public l
Service personnel at the Ft. St. Vrain facility at ~approximately 10:30 a.m. (MST).
Contact:
JHSniezek, IE x28019 HDThornburg, IE x28160 JGDavis, IE x28177 i
Distribution:
Transmitted H St Lb N Chairman Hendrie Commissioner Bradford Commissioner Kennedy S. J. Chilk, SECY C. C. Kammerer, CA Commissioner Gilinsky (For Distribution)
Transmitted: MNBBt./d P Bldg b 00 E. Vol IE L. V. Gossick, ED0 E. G. Case, NRR Region f O Y S. - H. Ha nauer, EDO J. J. Fouchard, PA SS Bic'93 l C k (MAIL)
R. Hartfield, MIPC g
C. V. Smith, NMSS T. J. McTiernan, 0IA 2
gg R. G. Ryan, OSP R. Minogue, SD 3.,
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H. K. Shapar, ELD 9906160043 790123 NO-7fB 11 PDR PRELIMINARY NOTIFICATION b-y%
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