Update: Bruce A Unit 1 Alpha Contamination (February 2010)
February 19, 2010
- On November 28, 2009, routine airborne surveying at the Bruce Nuclear Power Plant Unit 1, which is undergoing refurbishment, detected elevated radiation (alpha) contamination.
- Bruce Power took measures to identify and contain the contamination.
- All regulatory requirements, including reporting requirements, were met.
- Preliminary monitoring of affected workers indicates no exposures above regulatory limits. However, increased monitoring of affected workers and a root cause investigation continues by Bruce Power.
- CNSC on-site staff has been actively monitoring the situation since its onset.
- Bioassay sample analysis of the potentially most affected workers indicates doses received are well below regulatory limits.
- Bioassay sample analysis on other potential workers is underway. The final results are expected in June.
- CNSC staff has conducted an inspection and concludes that Bruce Power has taken appropriate action to contain the contamination and protect the health and safety of workers.
- On February 18, 2010, Bruce Power appeared before the Commission Tribunal in a public proceeding to provide an update on the situation, their response to date and the way forward.
- CNSC continues to monitor the situation and Bruce Power’s remedial activities.
- There is no risk to the public or the environment.
For more information, consult the S-99 Preliminary Report on the Bruce Power Web site (PDF) or visit the Bruce Power Web site.