ML061250255
| ML061250255 | |
| Person / Time | |
|---|---|
| Site: | Prairie Island  |
| Issue date: | 05/03/2006 |
| From: | Slawinski W J NRC/RGN-III |
| To: | |
| References | |
| MR-3-06-0006 | |
| Download: ML061250255 (1) | |
Text
Morning Report Date:MAY 05, 200 6 PRIORITY ATTENTION REQUIRED MORNING REPORT -
REGION III Licensee/Facility:
Notification:
3-2006-0006 05/03/2006 MR Number:
NUCLEAR MANAGEMENT CO.
[1] W-2-LP Date: Prairie Island Resident Inspector Notified Welch, Minnesota 050-00282 Dockets: Airborne Radioactivity Released Into Containment Building During Outage Work
Subject:
The licensee inadvertently released airborne radioactive contaminants into the Containment Building in preparation for planned work in the Unit-1 steam generators during its refueling outage. Steam generators were not properly vented
during removal of the generator man-ways in preparation for nozzle dam installation. Consequently, gaseous
contaminants within the steam generators were exhausted directly into the Containment Building atmosphere. The
Containment Building was evacuated until radiological conditions were restored approximately 12-hours later through
the containment building atmosphere cleanup system. There was no radiological release to the environment.
Approximately 100 workers present in the Containment Building were externally contaminated and had small intakes of
radioactive material composed principally of radioiodines. Preliminary results show that radiation doses from the
intakes were less than one percent of applicable regulatory limits. Workers were decontaminated to remove external
contamination prior to being released from the plant.
Regional Action: Two Region III Radiation Specialists will review the circumstances and the radiological consequences of the incident during an onsite inspection the week of May 8, 2006.
Discussion:
Contact: Email: Phone No: Org:SLAWINSKI, WAYNE JWJS2@nrc.gov (630) 829-9820 R3