Fluoridation of drinking water

Last updated February 1, 2023
Reading time: 1 min

Only the Pointe-Claire and Dorval drinking water production plants distribute fluoridated drinking water, the concentration of which is regulated by the Public Health Act.

Various purification treatments are used to provide high-quality water for public consumption. Fluoridation is an additional step, independent of the drinking water production steps.

Why fluoridate water?

Fluoridation is the addition of a fluoridation agent to drinking water to prevent tooth decay. The products used for water fluoridation at the Pointe-Claire and Dorval plants meet the quality standards established by the Quebec government, which are based on the highest recognized standards.

Areas served by these plants

Pointe-Claire plant

It supplies all of Pointe-Claire, Beaconsfield, Kirkland and Baie-d’Urfé as well as a portion of Dollard-des-Ormeaux, within the following boundaries

  • south of Boulevard de Salaberry
  • east of Rue Somerset 
  • west of Rue Iberville and Rue Tecumseh

Dorval plant

It serves Dorval, Dorval Island and the Montréal-Trudeau airport facilities.

Operated by Montréal since 2014, these two plants provide approximately 5% of the drinking water on the island of Montréal.

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