Cornwall Wastewater Treatment Plant - Serving Cornwall, Ontario, Canada

The Cornwall Wastewater Treatment Plant is a municipal facility located in Cornwall, Ontario, Canada, serving a population of approximately 46,420. Situated in Eastern Ontario along the St. Lawrence River, the plant plays a key role in managing wastewater for this community near the Quebec border. As a Canadian wastewater treatment plant serving a medium-sized agglomeration, it operates under provincial regulations administered by the Ontario Ministry of the Environment, Conservation and Parks. The plant's treated effluent is discharged into the St. Lawrence River, a major waterway that flows from the Great Lakes to the Atlantic Ocean. This river supports diverse aquatic life and is an important migratory corridor for fish species. The plant's operations contribute to protecting water quality in this ecologically significant river system.

The Cornwall Wastewater Treatment Plant discharges into the St. Lawrence River, which flows from Lake Ontario through the Quebec City region and ultimately into the Gulf of St. Lawrence and the Atlantic Ocean. The river supports a diverse ecosystem including fish species such as sturgeon and walleye, and its waters are used for recreation and drinking water downstream. The plant's location in a mixed urban-industrial area requires careful management to protect water quality in this internationally significant waterway.