BC Hydro will test the John Hart facility’s public warning system on Thursday.

Testing will take place between 8 a.m. and 6 p.m. along the Campbell River, from the John Hart Dam to Second Island. Temporary signs have been installed throughout the river system to advise the public about the tests.

The warning sirens may sound for up to five minutes at a time and could be activated several times throughout the day.

The Campbell River is part of a hydroelectric system where water flows can change quickly because of planned operations or unexpected events. The warning system is an important safety measure designed to alert people when river flows are about to rise rapidly.

Permanent safety signs along the river explain what the sirens mean. Anyone who hears a warning siren should immediately leave the river channel and move to a safe location.