Etangs Aeres St etienne Wastewater Treatment Plant, Lévis, Québec

Etangs Aeres St etienne is a municipal wastewater treatment plant located in the Saint-Étienne-de-Lauzon sector of Lévis, Québec, Canada. It serves a population of approximately 6,500 residents, operating as part of the region's wastewater infrastructure managed by local authorities. As a plant serving a small agglomeration, it falls under Québec's environmental regulations, which align with Canada's federal wastewater standards. These standards require secondary treatment for most facilities, with specific effluent quality objectives to protect receiving waters. The plant's designed capacity is 1.00 million cubic meters per year, indicating its scale relative to the community it serves. The treated effluent from the plant discharges into local waterways that ultimately flow into the St. Lawrence River, a major water body draining into the Atlantic Ocean. The plant plays a role in safeguarding the ecological health of the St. Lawrence River and its tributaries, which support diverse aquatic life and are important for regional biodiversity.

The plant's discharge enters the watershed of the St. Lawrence River, one of North America's largest rivers, which flows northeast into the Gulf of St. Lawrence and the Atlantic Ocean. The St. Lawrence River supports a rich ecosystem, including fish species such as Atlantic sturgeon and American eel, and provides critical habitat for migratory birds. The plant's operations help maintain water quality in this ecologically significant river system.