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Environment 
The Réseau de suivi du milieu aquatique (RSMA), managed by the City of Montréal, monitors changes in the quality of waterways in the Agglomeration of Montréal. It takes samples and performs up to 20,000 chemical, physical and bacteriological analyses each year to assess water quality.
The City of Montréal ensures the quality of its waterways and protects their ecosystems and biodiversity through its threefold action plan: reduce pollutants at source, intercept and treat wastewater, and monitor the aquatic environment.
To find out more about these initiatives or to report a problem, visit the City of Montréal website.
