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.