Drinking Water Quality and Supply

From source to sink

Where Saint-Hyacinthe water comes from

A plain-language tour of the lakes, rivers, or wells that feed Saint-Hyacinthe, 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 Saint-Hyacinthe water lives

Source waters and treatment plants pinned from published utility names. Open a pin below for the full OpenStreetMap view.

Map showing drinking-water locations for Saint-Hyacinthe

Map data © OpenStreetMap contributors. Pins are approximate for orientation, not legal survey points.

Deep dive for households

Saint-Hyacinthe drinking water starts as surface water (rivers, lakes, or reservoirs). The named source on the utility record is Yamaska River. That is the water that eventually reaches kitchen taps after treatment, not a separate bottled brand.

Water is cleaned at Usine de production d’eau potable de Saint-Hyacinthe before it enters city pipes. Municipal surface plant treating Yamaska River water for the city distribution system.

After treatment, water moves through pumps, storage, and underground mains to reach streets and buildings. City reservoirs and aqueduct network across Saint-Hyacinthe.

One detail that makes Saint-Hyacinthe water feel local: The Yamaska is an agricultural watershed,source-water nutrient and pesticide pressures are a recurring treatment theme for Saint-Hyacinthe. 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: medium

Named source waters

  • Yamaska River

Treatment plants

These are the buildings that filter and disinfect water before it enters city pipes.

  • Usine de production d’eau potable de Saint-Hyacinthe

    Municipal surface plant treating Yamaska River water for the city distribution system.

How it reaches your street

City reservoirs and aqueduct network across Saint-Hyacinthe.

Saint-Hyacinthe water quality grades · All city rankings

Source · ECCC / municipal open data (seed). Last updated 2026-07-22. Refreshed on the site's automated schedule.