etangs aeres Wastewater Treatment Plant, Val-Alain, Québec

The etangs aeres wastewater treatment plant is located in Val-Alain, a small municipality in the Lotbinière Regional County Municipality within the Chaudière-Appalaches region of Québec, Canada. This facility serves a population of 258, reflecting its role in a rural community. The plant provides secondary treatment, which is the standard biological treatment process for removing organic matter and suspended solids. Under Canadian federal and provincial regulations, secondary treatment is typically required for municipal wastewater to protect receiving water bodies. The plant discharges 116.00 cubic meters of treated wastewater per day. The treated effluent from the plant is released into local waterways that ultimately drain into the St. Lawrence River, one of the most important river systems in North America. The St. Lawrence River supports diverse aquatic life and is a critical migratory corridor for fish species, including Atlantic salmon and American eel. The plant's secondary treatment helps reduce nutrient loading and protect downstream water quality.

The plant discharges into local streams that flow into the St. Lawrence River, which drains into the Gulf of St. Lawrence and eventually the Atlantic Ocean. The St. Lawrence River is a major ecological corridor supporting diverse fish populations and migratory birds. Secondary treatment at this plant helps mitigate nutrient enrichment and protect the sensitive estuarine environment downstream.