Overview
Milnor Lagoon is a secondary wastewater treatment plant serving the community of Milnor, North Dakota, USA. It treats an average daily flow of approximately 151,420 gallons.
Milnor Lagoon is a municipal wastewater treatment facility located in Milnor, North Dakota, a small town in Sargent County. The plant serves a population of about 653 residents, providing secondary treatment to meet state and federal water quality standards. As a secondary treatment facility, Milnor Lagoon employs biological processes to reduce organic matter and suspended solids. The plant has a designed capacity of 151,420 gallons per day, matching its average discharge volume, indicating it operates at full capacity. Under the US Clean Water Act, such facilities must comply with National Pollutant Discharge Elimination System (NPDES) permits issued by the state of North Dakota. The treated effluent is discharged into local waterways that ultimately drain into the Red River of the North basin, which flows north into Lake Winnipeg in Canada. This watershed supports diverse aquatic life and is part of the larger Hudson Bay drainage system. The plant's inland location and secondary treatment help protect downstream water quality.
Environmental context
Milnor Lagoon discharges into tributaries of the Red River of the North, which flows into Lake Winnipeg. This watershed is ecologically sensitive, supporting fish species such as walleye and northern pike, and provides important habitat for migratory waterfowl. The plant's secondary treatment reduces nutrient loads, helping to mitigate eutrophication risks in downstream water bodies.
Frequently asked questions
Milnor Lagoon is located at 225 6th Avenue in Milnor, Sargent County, North Dakota, United States.
The plant serves approximately 653 residents of the city of Milnor.
The treated effluent is discharged into local streams that flow into the Red River of the North basin, ultimately reaching Lake Winnipeg.
Milnor Lagoon provides secondary treatment, which uses biological processes to remove organic matter and suspended solids.
As a US municipal plant, Milnor Lagoon operates under the Clean Water Act and must comply with an NPDES permit issued by the North Dakota Department of Environmental Quality.
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