MacGregor Wastewater System - Secondary Treatment Plant in Municipality of North Norfolk, Manitoba

MacGregor Wastewater System is a municipal wastewater treatment facility located on Road 66 North in the Municipality of North Norfolk, Manitoba, Canada. It serves a small population of 457 residents, reflecting its role in a rural community within the Canadian Prairies. The plant provides secondary treatment, which is the standard biological treatment process required under Canadian federal and provincial regulations for communities of this size. Secondary treatment effectively reduces organic matter and suspended solids, ensuring the effluent meets environmental quality standards before discharge. The treated wastewater is discharged into the local watershed, which ultimately drains into the Assiniboine River and then into the Lake Winnipeg basin. Lake Winnipeg is a large, ecologically significant lake that experiences eutrophication challenges, making nutrient management important for all treatment plants in the region.

The plant discharges into the Assiniboine River watershed, which flows into the Red River and ultimately into Lake Winnipeg. Lake Winnipeg is a large, shallow lake that supports diverse aquatic life and is a major recreational and commercial fishery. The region's flat terrain and agricultural land use contribute to nutrient runoff, making the plant's secondary treatment important for controlling phosphorus and nitrogen loads to the downstream environment.