Lagoon Aerated Wastewater Treatment Plant, Nelson House, Manitoba

Lagoon Aerated is a municipal wastewater treatment facility located in Nelson House (ᓂᓯᒐᐚᔭᓯᕽ), Manitoba, Canada. The plant serves a population of 1,235 and is classified as a small-scale facility within the province's wastewater infrastructure. 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 process that typically involves biological degradation of organic matter followed by settling. Secondary treatment is the standard for Canadian plants of this size, ensuring significant reduction of biochemical oxygen demand and suspended solids. The plant discharges approximately 554.60 cubic meters of treated wastewater daily. The treated effluent enters the local watershed, which ultimately drains into the Nelson River system and then into Hudson Bay. This region is ecologically sensitive, supporting diverse aquatic life and serving as an important migratory corridor for waterfowl and fish species. The plant's operation helps protect downstream water quality in this remote boreal ecosystem.

The plant discharges into the local watershed, which flows into the Nelson River, one of Canada's largest rivers, and eventually reaches Hudson Bay. This remote boreal region supports diverse aquatic ecosystems, including fish species such as walleye and northern pike, and provides critical habitat for migratory birds. The secondary treatment helps mitigate nutrient loading and protect downstream water quality in this sensitive environment.