POTOSI WWTP - Washington County, Missouri Wastewater Treatment Plant

POTOSI WWTP is a municipal wastewater treatment facility located in Washington County, Missouri, serving a population of about 4,570. The plant is part of the regional infrastructure managing wastewater from the surrounding community. As a US-based facility, POTOSI WWTP operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Missouri Department of Natural Resources. For a plant serving a population of this scale, secondary treatment is typically required to meet effluent standards. The plant discharges into local waterways that ultimately drain into the Mississippi River basin. The receiving waters support aquatic life and are part of the larger Mississippi River watershed, which flows into the Gulf of Mexico. Proper treatment helps protect downstream water quality and ecosystems.

POTOSI WWTP discharges into tributaries of the Mississippi River basin, which flows southward to the Gulf of Mexico. The local watershed includes streams and rivers that support diverse aquatic species and provide habitat for fish and wildlife. The plant's operations contribute to maintaining water quality in this ecologically significant river system.