Station epuration Wastewater Treatment Plant, Saint-Louis, Quebec

Station epuration is a municipal wastewater treatment facility located in Saint-Louis, within the Les Maskoutains region of Montérégie, Quebec, Canada. The plant serves a small population of 367 residents and operates under secondary treatment standards, ensuring effective removal of organic matter and suspended solids. As a secondary treatment plant, it meets the typical requirements for small Canadian communities under provincial regulations. The plant's discharge volume of 165.00 cubic meters per day reflects its scale, and it operates in compliance with Quebec's environmental framework for wastewater management. The treated effluent is discharged into local waterways, contributing to the protection of the Richelieu River watershed and ultimately the St. Lawrence River. This supports aquatic life and maintains water quality for downstream communities and ecosystems in the region.

The plant discharges into the Richelieu River watershed, which flows northward into the St. Lawrence River, a major waterway supporting diverse aquatic species and migratory fish. The surrounding Montérégie region features agricultural lands and wetlands that benefit from maintained water quality, reducing nutrient loading and protecting downstream habitats.