Etang aeres de Bertierville Wastewater Treatment Plant, Berthierville, Quebec

Etang aeres de Bertierville is a municipal wastewater treatment plant located at 881 Rue de Bienville in Berthierville, Quebec, Canada. The facility serves a population of about 6,100 residents in the Lanaudière region. As a Canadian plant in Quebec, it operates under provincial environmental regulations that align with federal standards under the Canadian Environmental Protection Act. For a community of this size, typical treatment involves secondary processes such as aerated lagoons or activated sludge to meet effluent quality standards. The plant's treated effluent is discharged into the local watershed, which ultimately drains into the St. Lawrence River via the L'Assomption River system. This discharge supports the ecological health of downstream aquatic habitats and the broader St. Lawrence ecosystem.

The plant discharges into the L'Assomption River basin, a tributary of the St. Lawrence River. The St. Lawrence River is a major waterway that flows into the Gulf of St. Lawrence, supporting diverse aquatic life including fish species such as lake sturgeon and Atlantic salmon. The watershed is ecologically sensitive due to its role in migratory bird routes and as a freshwater source for the region.