Rugby Lagoon Wastewater Treatment Plant, Rugby, North Dakota

Rugby Lagoon is a municipal wastewater treatment facility located in Rugby, North Dakota, serving a population of approximately 2,876 residents. The plant provides secondary treatment, a standard level for communities of this size in the United States. The plant has a designed capacity of 1,324.89 units and currently treats a discharge volume of 908.50 units. As a secondary treatment facility, it meets the requirements of the US Clean Water Act, which mandates secondary treatment for municipal wastewater to protect water quality. The treated effluent is discharged into local receiving waters, which ultimately drain into the Missouri River basin. This contributes to the overall health of the watershed, supporting aquatic life and downstream ecosystems in the Great Plains region.

The plant discharges into local waterways that are part of the Missouri River basin. This region supports diverse aquatic habitats and is important for migratory birds and fish species. The secondary treatment process helps reduce nutrient and organic pollutant loads, protecting downstream water quality in the Missouri River and its tributaries.