etangs Aeres RAC Wastewater Treatment Plant, Coteau-du-Lac, Quebec

The etangs Aeres RAC wastewater treatment plant is located at 225 Rue de l'Acier in Coteau-du-Lac, Quebec, Canada. It serves a population of approximately 5,221 residents in the Montérégie region. The plant is operational and plays a key role in managing municipal wastewater for this community. As a small-scale facility in Quebec, the plant is subject to provincial wastewater regulations under the Quebec Ministry of the Environment. For agglomerations of this size, secondary treatment is typically required to meet effluent standards. The plant's treatment process is designed to comply with these standards, ensuring protection of local water quality. The treated effluent is discharged into the local watershed, which ultimately drains into the St. Lawrence River via the Ottawa River system. The St. Lawrence River is a major ecological corridor supporting diverse aquatic life and migratory fish species. Proper treatment at this plant helps maintain the health of this important waterway.

The plant discharges into the local watershed that flows into the Ottawa River and then the St. Lawrence River. The St. Lawrence River is a critical freshwater ecosystem supporting diverse fish populations, including lake sturgeon and American eel, and serves as a migratory route for many species. The plant's treatment helps protect downstream water quality in this ecologically significant river system.