Flushing of the aqueduct system in Alstonvale and Hudson Valley neighbourhoods begins October 2, 2023

Public Works crews will be flushing the RÉSEAU VALLÉES D’HUDSON section of the aqueduct network (see the red section on the MAP). This work will occur from Monday to Friday, between 8 a.m. and 4 p.m., from Monday, October 2nd, until 4 p.m. on Friday, October 13th.

This large-scale operation can cause a change in water pressure and/or may produce a reddish (rusty) colour. This situation is harmless, and the water is potable, but it is recommended to avoid washing clothes or dishes between 8 a.m. and 4 p.m. If your water appears discoloured, run the cold water until it becomes clear.

A reminder to never leave an open faucet unattended.

Why flush the system? Flushing the aqueduct system removes the mineral sediments (including iron and rust particles) that the water has deposited on the inside walls of pipes. The dirty water is evacuated through the fire hydrants. This process also maintains the quality of our drinking water. Lastly, regular aqueduct maintenance ensures that our network is in good working order, especially the street valves and fire hydrants.