From source to sink
Where Cowansville water comes from
A plain-language tour of the lakes, rivers, or wells that feed Cowansville, the plants that clean the water, and how it reaches kitchen taps. Lab grades for hardness, lead, and pH live on the water quality page.
On the map
Where Cowansville water lives
Source waters and treatment plants pinned from published utility names. Open a pin below for the full OpenStreetMap view.
- CityCowansville
Municipal service area
- Treatment plantUsine de filtration de Cowansville
Approximate pin near Cowansville (exact plant coordinates pending)
Map data © OpenStreetMap contributors. Pins are approximate for orientation, not legal survey points.
Deep dive for households
Cowansville drinking water starts as surface water (rivers, lakes, or reservoirs). The named source on the utility record is Lac Davignon (reservoir on Rivière Yamaska Sud-Est, created 1969). That is the water that eventually reaches kitchen taps after treatment, not a separate bottled brand.
Water is cleaned at Usine de filtration de Cowansville before it enters city pipes. Full municipal filtration plant with modern process controls; >8,500 m³ reservoir storage before distribution and booster stations.
After treatment, water moves through pumps, storage, and underground mains to reach streets and buildings. Lac Davignon is both the drinking reservoir and a recreation lake (no gas motors).
One detail that makes Cowansville water feel local: Cowansville's drinking lake is an artificial reservoir built on the Yamaska Sud-Est specifically to secure municipal supply. Lab grades for hardness, lead, and pH sit on the city water quality page; this overview is about the route the water travels.
Where it starts
Surface water
Rivers, lakes, or reservoirs, not underground wells as the main draw.
Research confidence: high
Named source waters
- Lac Davignon (reservoir on Rivière Yamaska Sud-Est, created 1969)
Treatment plants
These are the buildings that filter and disinfect water before it enters city pipes.
Usine de filtration de Cowansville
Full municipal filtration plant with modern process controls; >8,500 m³ reservoir storage before distribution and booster stations.
How it reaches your street
Lac Davignon is both the drinking reservoir and a recreation lake (no gas motors).