Station d'epuration Wastewater Treatment Plant, Carignan, Quebec

Station d'epuration is a municipal wastewater treatment plant located in Carignan, Quebec, Canada. It serves a population of approximately 5,492 residents, classifying it as a small-scale facility within the province's wastewater infrastructure. The plant is operational and plays a key role in managing domestic wastewater from the community. The plant operates under Quebec's environmental regulations, which align with Canada's federal wastewater standards. For a facility of this size, secondary treatment is typically required to meet effluent quality guidelines. The plant's designed capacity is 1.00 million liters per day, indicating its scale relative to the population served. The treated effluent is discharged into the Richelieu River watershed, which flows northward into the St. Lawrence River. This water body supports diverse aquatic life and is an important migratory corridor for fish species. The plant's operations contribute to protecting downstream water quality in the St. Lawrence River ecosystem.

The plant discharges into the Richelieu River, a tributary of the St. Lawrence River. The Richelieu River flows through the Montérégie region and supports a variety of fish and wildlife. Downstream, the St. Lawrence River is a major ecological corridor in North America, hosting diverse aquatic habitats and serving as a critical migration route for species such as American eel and lake sturgeon. Protecting water quality in this watershed is essential for maintaining regional biodiversity.