STANLEY LAGOON Wastewater Treatment Plant, Stanley, North Dakota

STANLEY LAGOON is a municipal wastewater treatment facility located in Stanley, North Dakota, United States. The plant serves a population of approximately 1,458 residents, classifying it as a small-scale treatment facility within the state's wastewater infrastructure. The plant provides secondary treatment, which is the standard level required by the U.S. Clean Water Act for municipal wastewater. With a designed capacity of 567.81 cubic meters per day and an average daily discharge volume of 416.40 cubic meters, the facility operates below its design capacity, indicating adequate headroom for current demand. The treated effluent is discharged into a local receiving water body, which ultimately drains into the Missouri River watershed. This river system supports diverse aquatic life and is a critical water resource for the region. The plant's operation helps protect downstream water quality and ecological health.

The plant discharges into a local watercourse that flows into the Missouri River basin, a major tributary of the Mississippi River. This watershed supports a variety of fish species and provides habitat for migratory birds. The region's semi-arid climate makes water quality management essential for maintaining aquatic ecosystems and agricultural water supplies.