From source to sink
Where Sainte-Agathe-des-Monts water comes from
A plain-language tour of the lakes, rivers, or wells that feed Sainte-Agathe-des-Monts, 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 Sainte-Agathe-des-Monts water lives
Source waters and treatment plants pinned from published utility names. Open a pin below for the full OpenStreetMap view.
- CitySainte-Agathe-des-Monts
Municipal service area
- Treatment plantStation de purification Ste-Agathe-des-Monts (Petit Lac des Sables)
Approximate pin near Sainte-Agathe-des-Monts (exact plant coordinates pending)
Map data © OpenStreetMap contributors. Pins are approximate for orientation, not legal survey points.
Deep dive for households
Sainte-Agathe-des-Monts drinking water starts as surface water (rivers, lakes, or reservoirs). The named sources on the utility record are Petit Lac des Sables (Lac Grignon) , primary raw water, Lac des Sables (summer top-up pumped into Petit Lac des Sables). That is the water that eventually reaches kitchen taps after treatment, not a separate bottled brand.
Water is cleaned at Station de purification Ste-Agathe-des-Monts (Petit Lac des Sables) before it enters city pipes. MELCC X0008112: chlorination, filtration, and carbon. Filtration plant built ~2010-2012 on the Petit Lac des Sables shore (~10,000 ft²). City also doses zinc orthophosphate corrosion inhibitor (aggressive headwater chemistry).
After treatment, water moves through pumps, storage, and underground mains to reach streets and buildings. City page: intake on Lac Grignon / Petit lac des Sables; summer pumping from grand Lac des Sables to keep the upper reservoir up. Reported production capacity ~10,500 m³/day; average ~6,750 m³/day.
One detail that makes Sainte-Agathe-des-Monts water feel local: Petit Lac des Sables supplies about two-thirds of annual raw water; in dry summers the city pumps uphill from the bigger Lac des Sables to keep the drinking-water lake topped up. 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
- Petit Lac des Sables (Lac Grignon) - primary raw water
- Lac des Sables (summer top-up pumped into Petit Lac des Sables)
Treatment plants
These are the buildings that filter and disinfect water before it enters city pipes.
Station de purification Ste-Agathe-des-Monts (Petit Lac des Sables)
MELCC X0008112: chlorination, filtration, and carbon. Filtration plant built ~2010-2012 on the Petit Lac des Sables shore (~10,000 ft²). City also doses zinc orthophosphate corrosion inhibitor (aggressive headwater chemistry).
How it reaches your street
City page: intake on Lac Grignon / Petit lac des Sables; summer pumping from grand Lac des Sables to keep the upper reservoir up. Reported production capacity ~10,500 m³/day; average ~6,750 m³/day.