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.
Chalk River, ON – November 12, 2026 – During excavation work for the installation of fencing on October 19, a contractor struck a buried energized electrical cable. When struck, the cable was damaged and the electrical energy was released resulting in a temporary disruption to conventional power in nearby facilities.
The contractor stopped work immediately, and the area was secured and assessed. CNL implemented a stand-down for similar digging and drilling projects, and related work activities were subject to additional reviews before being permitted to continue.
CNL is investigating the event, and the information gathered will be applied to strengthen the conduct of future underground work activities and reduce the likelihood of recurrence.
No injuries resulted from this event. There were no impacts to nuclear safety or the environment.
All relevant regulatory agencies were notified.
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Contact:
Philip Kompass
Director, Corporate Communications
1 866 886-2325
[email protected]