Sherwood Lagoon Wastewater Treatment Plant, Sherwood, North Dakota

Sherwood Lagoon is a municipal wastewater treatment facility located in Sherwood, Renville County, North Dakota. The plant serves a small population of 242 residents and operates under the regulatory framework of the US Clean Water Act, which requires secondary treatment for municipal wastewater discharges. The plant provides secondary treatment, a standard level for small communities in the United States. Its designed capacity is 113.56 megaliters per year, matching the reported discharge volume. As a lagoon system, it relies on natural biological processes to treat wastewater before discharge. The treated effluent is released into the local watershed, which drains into the Souris River basin. The Souris River flows north into Canada and eventually into Hudson Bay. The plant's location in the Great Plains means the surrounding environment includes prairie ecosystems and agricultural lands, where maintaining water quality is important for downstream aquatic life and irrigation use.

The plant discharges into the Souris River watershed, which flows northward through North Dakota into Manitoba, Canada, and ultimately into Hudson Bay. This prairie river system supports diverse aquatic species and is used for irrigation and recreation. The surrounding region is primarily agricultural, so the plant's secondary treatment helps protect downstream water quality from nutrient loading and pathogens.