Etangs Aeres Wastewater Treatment Plant, Kamouraska, Quebec

Etangs Aeres is a municipal wastewater treatment facility located on Avenue Morel in Kamouraska, Quebec, within the Bas-Saint-Laurent region. The plant serves a small population of 220 residents, reflecting its role in a rural community along the south shore of the St. Lawrence River. The plant provides secondary treatment, which is the standard biological process for removing organic matter and suspended solids. Under Canadian federal and provincial regulations, secondary treatment is required for wastewater discharges to protect receiving waters. The treated effluent is discharged into the St. Lawrence River, a major waterway that flows into the Gulf of St. Lawrence and ultimately the Atlantic Ocean. The St. Lawrence River supports diverse aquatic life, including fish species such as Atlantic salmon and sturgeon, and is an important migratory corridor for birds. The plant's proximity to the coast (within 10 km) means its discharge contributes to the overall nutrient and pollutant load entering the marine environment.

The plant discharges into the St. Lawrence River, which flows northeast into the Gulf of St. Lawrence and then the Atlantic Ocean. The St. Lawrence River is a critical ecosystem supporting diverse aquatic life, including fish, invertebrates, and migratory birds. The river's estuary and gulf are ecologically sensitive areas that require careful management of nutrient inputs to prevent eutrophication and maintain water quality.