Chesterville Wastewater Treatment Lagoon - Secondary Treatment Facility in North Dundas, Ontario

Chesterville Wastewater Treatment Lagoon is a municipal wastewater facility located in the community of Chesterville, part of North Dundas in Eastern Ontario, Canada. The plant serves a small population of about 1,278 residents and operates under Ontario's regulatory framework for wastewater treatment. The facility provides secondary treatment, which is the standard level required for inland communities of this size in Ontario. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The plant discharges an average of 574 cubic meters of treated wastewater per day into the local environment. The treated effluent from the lagoon is released into a nearby watercourse that ultimately drains into the South Nation River, a tributary of the Ottawa River, which flows into the St. Lawrence River and eventually the Atlantic Ocean. The plant plays a key role in protecting local water quality and the downstream aquatic ecosystem in the South Nation River watershed.

The plant discharges into a local watercourse that flows into the South Nation River, part of the Ottawa River basin. This watershed supports diverse aquatic life and is important for regional biodiversity. The St. Lawrence River downstream is a major ecological corridor for fish migration and waterfowl. Proper treatment helps prevent nutrient loading and maintains water quality in this sensitive freshwater system.