Etang Aeree de Grandes Piles Wastewater Treatment Plant, Grandes-Piles, Quebec

Etang Aeree de Grandes Piles is a municipal wastewater treatment facility located at 120 Route 155 in Grandes-Piles, Quebec, Canada. The plant serves a small population of 212 residents in the Mauricie region, operating under provincial environmental regulations. The plant provides secondary treatment, which is appropriate for its small scale. Under Quebec's wastewater regulations, small communities are typically required to meet secondary treatment standards to protect receiving water bodies. The plant discharges an average of 95 cubic meters of treated wastewater per day. The treated effluent flows into the local watershed, which ultimately drains into the Saint-Maurice River, a major tributary of the St. Lawrence River. This river system supports diverse aquatic life and is important for regional water quality. The plant's secondary treatment helps reduce organic pollutants and protect downstream ecosystems.

The plant discharges into the Saint-Maurice River basin, which flows into the St. Lawrence River, one of Canada's most significant waterways. The St. Lawrence River supports a wide range of aquatic species and is a critical migratory corridor for fish. Secondary treatment at this plant helps maintain water quality in this ecologically sensitive river system.