Princeton WWTP - Secondary Treatment Plant in Princeton, Missouri

Princeton WWTP is a municipal wastewater treatment plant located in Princeton, Mercer County, Missouri, United States. The facility serves a small community of about 1,166 people, reflecting its role in managing local domestic wastewater. The plant provides secondary treatment, a standard biological process that removes organic matter and suspended solids. With a designed capacity of 1,059.91 volume units and a current discharge volume of 340.69, the plant operates well within its capacity. Under the U.S. Clean Water Act, such facilities must comply with National Pollutant Discharge Elimination System (NPDES) permits issued by the Missouri Department of Natural Resources, ensuring effluent meets water quality standards. The treated effluent is discharged into a local waterway, likely a tributary of the Grand River or Thompson River, which flows into the Missouri River and eventually the Mississippi River. This watershed supports diverse aquatic life and provides water for downstream communities and agriculture.

The plant discharges into a local stream within the Grand River basin, which flows into the Missouri River and then the Mississippi River. This watershed supports diverse aquatic species and is important for regional water quality. The plant's secondary treatment helps reduce nutrient and organic pollution, protecting downstream ecosystems and drinking water sources.