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The Ville de Montreal will conduct water network shutdown tests on September 16 and 17, 2026, in preparation for the rehabilitation of water chambers. These interventions could result in temporary disruptions to water service in certain areas of Côte-des-Neiges–Notre-Dame-de-Grâce, Westmount and Ville-Marie.
An intervention is planned in certain areas of the City of Westmount and the Ville-Marie borough. The water network shutdown test could result in a temporary interruption of water service lasting approximately 60 minutes, on September 16 and 17, between9 a.m. and 3 p.m.
The Ville de Montreal encourages residents who may be affected to remain attentive to notices issued before and during the work. Affected residents will receive a notice from the Ville de Montreal within 48 hours prior to the intervention.
In the Côte-des-Neiges–Notre-Dame-de-Grâce and Westmount areas, a significant decrease in water pressure at the tap may occur between 9 a.m. on September 16 and 3 p.m. on September 17.
The potentially affected areas are bounded by:
The City reminds residents who may be affected that they could receive a notice or alert containing additional information and recommendations to follow during the intervention.
These interventions are part of the ongoing maintenance and rehabilitation of Montreal’s water network. The shutdown tests will help prepare for upcoming work and minimize potential issues during the work.