Beresford WWT Facility - Secondary Treatment Plant in Beresford, South Dakota

The Beresford WWT Facility is a municipal wastewater treatment plant located in Beresford, South Dakota, United States. It serves a population of approximately 1,849 residents in the Pleasant Township area of Lincoln County. The plant is situated on 471st Avenue and operates as part of the local wastewater infrastructure. The facility provides secondary treatment, which is the standard level required by the U.S. Clean Water Act for municipal wastewater plants. It has a designed capacity of 605.66 and a current discharge volume of 567.81, indicating it operates below its maximum capacity. Under the National Pollutant Discharge Elimination System (NPDES), plants of this scale are typically permitted by the state environmental agency. The treated effluent is discharged into a local water body, likely a tributary of the Missouri River basin, which ultimately drains into the Mississippi River and the Gulf of Mexico. The plant plays a key role in protecting downstream water quality in the region's agricultural and rural landscape.

The plant discharges into a water body within the Missouri River basin, which flows into the Mississippi River and eventually the Gulf of Mexico. The surrounding area is predominantly agricultural, and the plant's secondary treatment helps reduce nutrient loads that could contribute to hypoxia in the Gulf. The local watershed supports diverse aquatic life and is an important resource for irrigation and recreation.