Overview
Mapleton Lagoon is a secondary treatment plant serving 762 residents in Mapleton, North Dakota. It discharges 189.27 megaliters annually into the local watershed.
Mapleton Lagoon is a municipal wastewater treatment facility located in Mapleton, North Dakota, serving a population of 762. The plant operates under the U.S. Clean Water Act, which requires secondary treatment for municipal discharges to protect water quality. As a small agglomeration, it is subject to state-level NPDES permitting administered by the North Dakota Department of Environmental Quality. The plant's designed capacity is 189.27 megaliters per year, matching its current discharge volume, indicating full utilization. The treated effluent is discharged into the local watershed, which drains into the Red River of the North basin. This river flows northward into Lake Winnipeg in Canada, supporting diverse aquatic life and regional water resources. The plant's secondary treatment process reduces organic pollutants and suspended solids, helping maintain downstream water quality in this agriculturally intensive region.
Environmental context
The plant discharges into the Red River of the North basin, which flows into Lake Winnipeg, a large freshwater lake in Canada. The watershed supports migratory birds, fish species, and agricultural irrigation. Protecting water quality is critical to prevent nutrient loading and algal blooms in downstream ecosystems.
Frequently asked questions
Mapleton Lagoon is located at 1st Street in Mapleton, Cass County, North Dakota, United States.
The plant serves a population of 762 residents in the Mapleton area.
The plant discharges treated effluent into the local watershed, which drains into the Red River of the North basin, ultimately reaching Lake Winnipeg.
Mapleton Lagoon provides secondary treatment, which is the standard required under the U.S. Clean Water Act for municipal wastewater plants.
As a U.S. plant, it operates under the Clean Water Act and is permitted through the National Pollutant Discharge Elimination System (NPDES), administered by the North Dakota Department of Environmental Quality.
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