Overview
Station de traitement des eaux usées in Repentigny, Québec, serves over 55,000 residents as part of the region's municipal wastewater infrastructure, discharging treated effluent into the St. Lawrence River system.
The station de traitement des eaux usées is a municipal wastewater treatment plant located in Repentigny, Québec, Canada. Serving a population of approximately 55,682, it plays a key role in managing wastewater for this suburban community east of Montreal within the Lanaudière region. As a facility in Canada, the plant operates under provincial and federal regulations, including the Canadian Environmental Protection Act and Québec's Environment Quality Act. For a medium-sized agglomeration of this scale, secondary treatment is typically required to meet effluent standards before discharge. The plant's treated effluent is released into the St. Lawrence River system, which flows northeast through the Gulf of St. Lawrence into the Atlantic Ocean. This water body supports diverse aquatic life and is an important migratory corridor for fish and birds.
Environmental context
The plant discharges into the St. Lawrence River, a major waterway that drains the Great Lakes basin and flows into the Gulf of St. Lawrence and the Atlantic Ocean. This river system supports a rich ecosystem, including fish species such as Atlantic sturgeon and American eel, and provides critical habitat for migratory waterfowl. The plant's operations help protect downstream water quality in this ecologically significant watershed.
Frequently asked questions
The plant is located on Rue Lebel in Repentigny, Québec, Canada, within the L'Assomption Regional County Municipality in the Lanaudière region.
The plant serves approximately 55,682 residents of Repentigny and surrounding areas.
Treated effluent from the plant is discharged into the St. Lawrence River, which flows through Québec to the Gulf of St. Lawrence and the Atlantic Ocean.
The plant operates under Canada's Wastewater Systems Effluent Regulations (WSER) under the Fisheries Act, which set national effluent quality standards. Québec's Environment Quality Act also imposes additional provincial requirements for treatment and discharge.
For a medium-sized agglomeration of this scale, secondary treatment is standard under Canadian regulations to reduce organic matter and suspended solids before discharge into sensitive water bodies like the St. Lawrence River.
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