Lachine residents were told on June 11, 2026 that they must lower their potable water consumption after the borough was placed on Montreal’s water‑use vigilance list. City officials said the network cannot be shut off, so the municipality is asking households and businesses to cut back on water use to keep supplies stable.

The directive comes as part of a broader effort by the City of Montreal to encourage water conservation across multiple neighborhoods. Over recent weeks, the city has issued advisories to several boroughs, urging residents to limit activities such as lawn watering, car washing and unnecessary indoor water use. Lachine is now the latest area to receive a formal conservation advisory.

Montreal’s water‑management department explained that the vigilance list identifies zones where consumption is approaching levels that could strain the municipal supply system. While the city does not intend to disconnect service, officials warned that continued high demand could force more restrictive measures in the future. The advisory asks residents to adopt simple measures, such as fixing leaks promptly, using shorter shower times and collecting rainwater for outdoor tasks.

City representatives emphasized that the precautionary step aims to protect the overall reliability of the drinking water network for all Montrealers. The department noted that the vigilance list is a monitoring tool rather than a punitive one, and that cooperation from the public is essential to avoid any interruption of service.

Local authorities in Lachine are working with community groups to spread the message and provide tips on reducing water use. The city plans to review consumption data regularly and will update the advisory status as conditions evolve.

Montreal’s ongoing water‑conservation campaign reflects concerns about seasonal demand peaks and the need to preserve resources for the coming months, with Lachine’s inclusion marking the latest escalation in the city’s precautionary approach.