Usine d'epuration de Coaticook - Coaticook, Quebec Wastewater Treatment Plant

Usine d'epuration de Coaticook is a municipal wastewater treatment facility located in Coaticook, Quebec, Canada. Serving a population of around 7,795, the plant is part of the region's infrastructure managed under provincial environmental regulations. The plant is situated inland, more than 50 km from the coast, and its operations are overseen by Quebec's Ministry of the Environment. As a plant serving a small agglomeration, it is subject to Quebec's wastewater treatment standards, which align with Canada's federal regulations under the Wastewater Systems Effluent Regulations (WSER). These regulations require secondary treatment or equivalent for most facilities, ensuring adequate pollutant removal before discharge. Typical facilities of this scale employ biological treatment followed by disinfection. The treated effluent is discharged into a local watercourse that eventually flows into the St. Lawrence River basin. The receiving environment supports diverse aquatic life and is important for regional water quality. The plant plays a key role in protecting downstream ecosystems, including the St. Lawrence River, which is a major ecological and economic resource for Quebec.

The plant discharges into a local stream that is part of the St. Lawrence River watershed. The St. Lawrence River is a major waterway that drains into the Atlantic Ocean, supporting diverse aquatic species and serving as a critical habitat for fish and migratory birds. The region's watershed is ecologically sensitive, with efforts to maintain water quality for both human use and wildlife.