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April 21 2026

Flushing the water supply system

Starting Tuesday 21 and during the next 7 weeks, Rosemère will be carrying out the progressive flushing of its waterworks system, throughout the entire territory. This will be done on weekdays between 7:30 a.m. and 7 p.m.


During the entire operation, water pressure could be low. If the water becomes cloudy, turn on all cold water faucets and let the water run for a few minutes.


See the Water supply system flushing section to view the schedule and keep track of the progress of the operations. 


If you have any questions, please contact the Public Works Department at 450-621-3500, ext. 3300.

What’s happening

  • Public Consultation - Concordance Bylaws related to the PPU
  • Municipal Code of Conduct and Civility
  • Automated Call Service
  • New pickup day for the brown bin