Etangs Aerees Wastewater Treatment Plant, Saint-Hubert-de-Rivière-du-Loup, Québec

Etangs Aerees is a secondary wastewater treatment plant located at 18, rue Massé in Saint-Hubert-de-Rivière-du-Loup, a small community within the Rivière-du-Loup regional county municipality in the Bas-Saint-Laurent region of Québec, Canada. The plant serves a population of 896 and is classified as a small-scale municipal facility. As a secondary treatment plant, Etangs Aerees uses biological processes to remove organic matter and suspended solids, meeting the typical standards for Canadian wastewater facilities of this size. The plant operates under Québec's environmental regulations, which align with the federal Canadian Environmental Protection Act and provincial water quality objectives for the St. Lawrence River basin. The treated effluent from Etangs Aerees is discharged into local waterways that ultimately drain into the St. Lawrence River, a major ecological and economic artery of eastern Canada. 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 secondary treatment helps protect downstream water quality in this sensitive estuarine environment.

The plant discharges into the St. Lawrence River watershed, which flows from the Great Lakes through Québec to the Gulf of St. Lawrence and the Atlantic Ocean. This region supports diverse aquatic ecosystems, including fish spawning grounds and migratory bird habitats. Secondary treatment reduces organic pollutants and suspended solids, helping maintain water quality in the downstream St. Lawrence Estuary, a critical ecological zone.