Regulatory action – AREVA

Under the Nuclear Safety and Control Act and associated regulations, various levels of regulatory action can be taken by the Canadian Nuclear Safety Commission (CNSC) to protect the health, safety and security of Canadians and the environment.


September 26, 2016

Update on the request for action to AREVA

AREVA has provided the required information to the CNSC and has satisfied the terms of the regulatory request for action issued on March 17, 2015. CNSC staff now consider this matter closed.


March 17, 2015

CNSC request for action to AREVA

CNSC request for action to AREVA On March 17, 2015, the CNSC announced it had issued a request for action, pursuant to subsection 12(2) of the General Nuclear Safety and Control Regulations, to Cameco and AREVA. Both companies hold CNSC licences to operate uranium mills.

The request was issued after Cameco reported two events at its Key Lake uranium mill involving the unplanned release of calcined yellowcake (uranium dust) into the work environment.

In both events, workers were exposed to calcined uranium product resulting in weekly action level exceedances. The resulting exposures for both events were well below regulatory limits. While CNSC staff are satisfied with the immediate actions taken by Cameco, the CNSC is concerned by the similarities between the events and wants to ensure that such events are effectively prevented or mitigated through a lessons-learned approach at all operating uranium mills.


July 12, 2012

CNSC request for information to AREVA Resources Canada

On July 12, 2012, the CNSC announced that a request for information had been issued under subsection 12(2) of the General Nuclear Safety and Control Regulations, to AREVA's uranium milling operations. Following a uranium contamination event at Cameco's Blind River Refinery on June 23, 2012, the CNSC is requesting that all Canadian uranium mills review their operations and take a number of actions to minimize any potential for increased risks posed by the unintentional pressurization of a drum containing yellowcake.

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