Chalk River Information Bulletin

Emergency Preparedness Exercise at Canadian Nuclear Laboratories

(Chalk River, 2015 May 15) The following information bulletin is in accordance with Canadian Nuclear Laboratories (CNL) ongoing commitment to voluntary public disclosure of events related to the Chalk River Laboratories (CRL).

A site-wide evacuation exercise is scheduled for Canadian Nuclear Laboratories’ (CNL) Chalk River site on 2015 May 20. CNL conducts a site-wide evacuation exercise once every five years in addition to a comprehensive annual program of smaller-scale exercises.  

The May 20 exercise enables CNL to test and practice its emergency and evacuation procedures, along with the set up and operation of its off-site emergency response locations.  This exercise will also allow CNL to assess operational readiness and integration with other emergency response teams from within CNL and mutual aid partners within the community.

As part of the exercise, emergency site sirens will be tested which may be audible in off-site locations. No action is required by the general public in response to these sirens. There will be additional vehicle traffic in the vicinity of the Chalk River Laboratories during the afternoon hours of May 20. Please be cognizant of the possible change in traffic patterns as these vehicles leave the site.

Safety is CNL’s number one priority and the testing of its site emergency procedures is an important component of its operational practices. The Emergency Operations Centre, Environmental Assessment Centre, and a Site Assessment Centre at CRL are on-call 24 hours a day, seven days a week. 

If you wish to know more about Emergency Preparedness at the Chalk River Laboratories, please contact



Patrick Quinn
Director, Corporate Communications
CNL, 1-866-886-2325