Trochu Wastewater Lagoon - Kneehill County, Alberta | Secondary Treatment Facility

Trochu Wastewater Lagoon is a municipal wastewater treatment facility located in Kneehill County, Alberta, Canada. It serves a small population of 56 residents, reflecting the rural character of the area. The plant is classified as a small-scale facility under Canadian wastewater management standards. The plant provides secondary treatment, which is the standard level required for most Canadian municipal wastewater systems under the federal Wastewater Systems Effluent Regulations (WSER). These regulations, administered by Environment and Climate Change Canada, mandate effluent quality standards for carbonaceous biochemical oxygen demand, suspended solids, and other parameters. For a facility of this size, secondary treatment ensures adequate protection of receiving waters. The treated effluent is discharged into local watercourses that eventually drain into the Red Deer River basin, part of the larger Saskatchewan River system. This river network flows eastward into Lake Winnipeg, a vital freshwater resource in the Prairie region. The plant's operation helps maintain water quality in these downstream ecosystems, supporting aquatic life and recreational uses.

The plant discharges into local streams that feed into the Red Deer River, a major tributary of the South Saskatchewan River. This river system ultimately drains into Lake Winnipeg, a large and ecologically important lake in Manitoba. The surrounding Kneehill County area is primarily agricultural, so the plant's effluent must meet standards to protect downstream water quality from nutrient loading and other contaminants that could affect aquatic habitats and drinking water sources.