Hamlet of Entwistle Wastewater Lagoon - Secondary Treatment in Alberta, Canada

The Hamlet of Entwistle Wastewater Lagoon is a municipal facility located in Entwistle, Alberta, Canada, serving a small population of 452 residents. The plant operates under Alberta's environmental regulations, which require secondary treatment for communities of this size to protect receiving waters. The facility provides secondary treatment, a standard biological process that removes organic matter and suspended solids. With an annual discharge volume of 202.90 megaliters, the plant manages wastewater from the hamlet and surrounding area. The lagoon system is typical for small Canadian communities, offering cost-effective treatment with natural processes. The treated effluent is discharged into local watercourses that flow into the North Saskatchewan River basin, ultimately reaching Hudson Bay. The plant plays a key role in protecting downstream aquatic ecosystems and maintaining water quality in this rural region of Alberta.

The plant discharges into local streams that drain into the North Saskatchewan River, a major tributary of the Saskatchewan-Nelson River system flowing to Hudson Bay. This watershed supports diverse aquatic life, including fish species such as walleye and northern pike, and provides water for agricultural and recreational uses downstream.