Overview
Etangs Aeres de St Aubert is a secondary wastewater treatment plant serving Saint-Aubert, Quebec, Canada. It discharges 143.00 cubic meters of treated wastewater daily and is located within 10 km of the coast.
The Etangs Aeres de St Aubert wastewater treatment plant serves the small community of Saint-Aubert in the Chaudière-Appalaches region of Quebec, Canada. With a population served of 318, this facility provides secondary treatment for municipal wastewater. As a secondary treatment plant, it meets the standard requirements under Canadian federal and provincial regulations, which mandate secondary treatment for most municipal wastewater to reduce organic matter and suspended solids. The plant's discharge volume of 143.00 cubic meters per day reflects its small scale. The treated effluent is discharged into a local water body that ultimately drains into the St. Lawrence River, a major waterway that flows into the Gulf of St. Lawrence and the Atlantic Ocean. The plant's proximity to the coast (within 10 km) means its discharge can influence coastal water quality and the sensitive estuarine ecosystem of the St. Lawrence River.
Environmental context
The plant discharges into a tributary of the St. Lawrence River, which flows into the Gulf of St. Lawrence, a critical marine environment supporting diverse aquatic life, including fish, marine mammals, and migratory birds. The St. Lawrence River estuary is ecologically sensitive, with tidal influences and nutrient dynamics that can be affected by wastewater inputs. The plant's coastal location underscores the importance of effective treatment to protect downstream habitats.
Frequently asked questions
The plant is located on Rue des Loisirs in Saint-Aubert, Quebec, Canada, within the L'Islet Regional County Municipality in the Chaudière-Appalaches region.
The plant provides secondary treatment, which typically involves biological processes to remove organic matter and suspended solids, meeting standard Canadian municipal wastewater treatment requirements.
The treated effluent is discharged into a local water body that flows into the St. Lawrence River, eventually reaching the Gulf of St. Lawrence and the Atlantic Ocean.
The plant operates under the Canadian Wastewater Systems Effluent Regulations (WSER), which set national standards for effluent quality, including limits on carbonaceous biochemical oxygen demand, suspended solids, and chlorine. Secondary treatment is the baseline requirement for most systems.
For small communities like Saint-Aubert, secondary treatment is standard. Canadian regulations require all municipal wastewater systems to meet effluent quality standards, with smaller plants often using lagoons or mechanical treatment systems.
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