Deloraine Lagoon Wastewater Treatment Plant, Municipality of Deloraine – Winchester, Manitoba

Deloraine Lagoon is a wastewater treatment facility located in the Municipality of Deloraine - Winchester, Manitoba, Canada. The plant serves a small population of 214 residents, reflecting its role in a rural community. It operates under the regulatory framework of Manitoba's Environment Act and the Canadian Water Act, which set standards for effluent quality and environmental protection. The plant provides secondary treatment, a standard level for small Canadian communities, which typically involves biological processes to reduce organic matter and suspended solids. Secondary treatment ensures compliance with federal and provincial guidelines. The plant's annual discharge volume of 95.90 megaliters indicates its operational scale. The treated effluent is discharged into local waterways that eventually drain into the Souris River, a tributary of the Assiniboine River, which flows into the Red River and ultimately into Lake Winnipeg. This watershed supports diverse aquatic life and is important for regional biodiversity. The plant's operations help protect downstream water quality in this sensitive prairie ecosystem.

The plant discharges into local streams that feed the Souris River, part of the Red River basin draining into Lake Winnipeg. This watershed is ecologically sensitive, supporting fish species such as walleye and northern pike, and providing habitat for migratory birds. The region's flat terrain and agricultural land use make nutrient management critical to prevent eutrophication in downstream lakes.