Bottineau Lagoon Wastewater Treatment Plant, Bottineau, North Dakota

Bottineau Lagoon is a municipal wastewater treatment facility located in Bottineau, North Dakota, serving a population of approximately 2,211 residents. The plant operates as a lagoon system providing secondary treatment, a common approach for small communities in the northern Great Plains. Its designed capacity is 1,135.62 cubic meters per day, with an average discharge volume of 757.08 cubic meters per day. As a secondary treatment facility, Bottineau Lagoon meets the minimum standards required under the U.S. Clean Water Act for municipal wastewater treatment. The plant is subject to National Pollutant Discharge Elimination System (NPDES) permitting, which sets effluent limits to protect receiving water quality. Plants of this scale typically operate under general or individual permits issued by the North Dakota Department of Environmental Quality. The treated effluent from Bottineau Lagoon is discharged to local surface waters within the Souris River basin. This region is part of the Prairie Pothole ecosystem, which provides critical habitat for migratory waterfowl and supports diverse aquatic life. The plant's operation helps maintain water quality in this sensitive environment, reducing nutrient and pathogen loads before discharge.

Bottineau Lagoon discharges into local streams that flow into the Souris River, which ultimately drains into the Assiniboine River and then into the Red River of the North, reaching Lake Winnipeg. The surrounding Prairie Pothole Region is ecologically sensitive, providing breeding grounds for millions of waterfowl and supporting a variety of wetland-dependent species. Proper wastewater treatment is essential to prevent nutrient pollution and protect these vital habitats.