Plum Coulee Lagoon - Secondary Wastewater Treatment in Plum Coulee, Manitoba

Plum Coulee Lagoon is a municipal wastewater treatment facility located in Plum Coulee, Manitoba, Canada. It serves a small population of 200 residents, reflecting the rural character of the Municipality of Rhineland. The plant is classified as a lagoon system, a common treatment approach for small communities in the Canadian Prairies. The plant provides secondary treatment, which is the standard level required under Canadian federal and provincial regulations for communities of this size. Lagoon systems typically rely on natural biological processes in aerated or facultative cells. Operating under Manitoba's environmental protection framework. The treated effluent is released into the local watershed, which drains into the Red River Basin and ultimately into Lake Winnipeg. This region is part of the Lake Winnipeg watershed, an ecologically significant water body that experiences nutrient loading challenges. The plant's secondary treatment helps reduce organic pollutants and nutrients, contributing to the protection of downstream aquatic ecosystems.

The plant discharges into the local watershed within the Red River Basin, which flows northward into Lake Winnipeg. Lake Winnipeg is a large, shallow lake that supports diverse aquatic life and is an important migratory corridor for birds. The region's flat terrain and agricultural land use make nutrient management a key ecological consideration, as excess phosphorus and nitrogen can contribute to algal blooms in the lake.