Overview
The Lagoon Facultative plant in Gaa-wiikwedaawangaag / Sandy Bay, Manitoba, Canada, provides secondary treatment for a population of 1,640. It discharges treated wastewater near Lake Manitoba, contributing to local water quality management.
Located in the community of Gaa-wiikwedaawangaag / Sandy Bay, Manitoba, the Lagoon Facultative wastewater treatment plant serves a population of approximately 1,640 residents. This facility is part of the municipal infrastructure for the Sandy Bay First Nation, operating under Canadian federal and provincial environmental regulations. The plant provides secondary treatment using a facultative lagoon system, which is a common and cost-effective method for small communities. With a discharge volume of 743 cubic meters per day, the facility manages wastewater from the local population. Under Canadian regulations, secondary treatment is the minimum standard for municipal wastewater, ensuring reduction of organic matter and suspended solids. The treated effluent is discharged into the local watershed, which ultimately drains into Lake Manitoba, a large lake within the Nelson River basin. Lake Manitoba supports diverse aquatic life and is an important resource for recreation and traditional uses. The plant's proximity to the lake (within 10 km of the coast) underscores the need for effective treatment to protect water quality and downstream ecosystems.
Environmental context
The plant discharges into the Lake Manitoba watershed, part of the Nelson River system that flows into Hudson Bay. Lake Manitoba is a large, shallow lake that supports fish species such as walleye and northern pike, and provides habitat for migratory birds. The surrounding area is ecologically sensitive, with wetlands that filter nutrients and support biodiversity. Effective wastewater treatment is crucial to prevent eutrophication and maintain the lake's ecological health.
Frequently asked questions
The plant is located in Gaa-wiikwedaawangaag / Sandy Bay, Manitoba, Canada, on the Sandy Bay First Nation reserve near the southern shore of Lake Manitoba.
The plant serves approximately 1,640 residents of the Sandy Bay community.
The plant uses a facultative lagoon system for secondary treatment, and the treated effluent is discharged into the local watershed that drains into Lake Manitoba.
The plant operates under Canada's Wastewater Systems Effluent Regulations (WSER), which set national standards for effluent quality, including secondary treatment requirements for municipal systems.
For small communities in Canada, lagoon systems (facultative or aerated) are common due to low operational costs and effective treatment. Secondary treatment is required under federal regulations to reduce biochemical oxygen demand and suspended solids.
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