etangs aeres Wastewater Treatment Plant, Sainte-Hedwidge, Quebec

The etangs aeres wastewater treatment plant is located in Sainte-Hedwidge, a small municipality in the Saguenay-Lac-Saint-Jean region of Quebec, Canada. The plant serves a population of approximately 630 residents, classifying it as a small-scale facility within the province's wastewater infrastructure. The plant provides secondary treatment, which is the standard level required under Canadian federal and provincial regulations for communities of this size. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The treated effluent from the plant is discharged into local waterways that ultimately drain into the Lac-Saint-Jean watershed, a large freshwater lake in Quebec. The region is known for its diverse aquatic ecosystems and supports recreational activities such as fishing and boating. Proper wastewater treatment helps protect water quality in this sensitive inland environment.

The plant discharges into the Lac-Saint-Jean watershed, which flows into the Saguenay River and eventually into the St. Lawrence Estuary. This inland freshwater system supports diverse aquatic life, including fish species such as lake trout and walleye, and is an important recreational resource for the region. Secondary treatment helps reduce nutrient loading and protect water quality in this ecologically sensitive area.