Baie des Sables Wastewater Treatment Plant, Baie-des-Sables, Quebec

Baie des Sables is a secondary-level wastewater treatment plant located in the small coastal community of Baie-des-Sables, Quebec, Canada. Serving a population of 156, this facility is part of the municipal infrastructure in the Bas-Saint-Laurent region, operating under Canadian provincial regulations. The plant provides secondary treatment, which involves biological processes to reduce organic matter and suspended solids. The facility is designed for a small agglomeration. Under Quebec's environmental framework, such plants are required to meet provincial effluent standards to protect receiving waters. The treated effluent is discharged into the local environment, ultimately reaching the St. Lawrence River, a major waterway that flows into the Gulf of St. Lawrence and the Atlantic Ocean. The plant plays a key role in safeguarding the sensitive coastal and marine ecosystems of the region, including habitats for fish and migratory birds.

The plant discharges into the St. Lawrence River watershed, which drains into the Gulf of St. Lawrence and the Atlantic Ocean. The St. Lawrence Estuary is a critical habitat for marine mammals like beluga whales and supports diverse fish populations. The coastal location means treated effluent must meet strict standards to protect these ecologically sensitive waters.