Warning Siren Test on May 6, 2026
A public warning siren will be tested near the Town of Mount Royal on Wednesday, May 6, between 9:00 and 16:00.
TMR residents located within range of the siren at the Saputo plant (2365 Côte-de-Liesse Road) and/or the Agropur plant (333, Lebeau Boulevard) in Saint-Laurent may hear it between 9:00 and 16:00. No specific measures need to be taken with regard to this warning siren test.
The warning sirens are meant to warn people who are outdoors to quickly find shelter if a toxic substance is released. In the event of a toxic release, go into the nearest building, close the doors and windows, and turn off the ventilation system.
For more information, visit: https://montreal.ca/en/articles/release-toxic-substances-what-to-do-if-you-hear-warning-siren-5117.
