MCVILLE LAGOON Wastewater Treatment Plant, McVille, North Dakota

MCVILLE LAGOON is a municipal wastewater treatment facility located on Railroad Avenue in McVille, North Dakota. Serving a small population of 349 residents, the plant provides secondary treatment for the community's wastewater. The facility operates under the regulatory framework of the US Clean Water Act, which requires NPDES permits for discharges to surface waters. The plant has a designed capacity of 189.27 megaliters per year and currently discharges 151.42 megaliters annually, indicating it operates below its design capacity. As a secondary treatment facility, it uses biological processes to reduce organic matter and suspended solids before discharge. The treated effluent is released into local water bodies that drain into the Sheyenne River, a tributary of the Red River of the North. The Red River flows north into Lake Winnipeg in Canada, forming part of the Hudson Bay drainage basin. The plant's operations help protect downstream aquatic ecosystems from nutrient pollution and pathogens.

The plant discharges into local streams that flow into the Sheyenne River, which joins the Red River of the North. The Red River basin supports diverse aquatic life and is an important migratory corridor for waterfowl. Downstream, Lake Winnipeg experiences eutrophication issues, making nutrient removal from wastewater critical for the health of this large lake ecosystem.