Princeton STP - Wastewater Treatment Plant in Princeton, Kentucky

Princeton STP is a municipal wastewater treatment facility located in Princeton, Caldwell County, Kentucky. Serving a population of about 6,329, the plant is part of the region's infrastructure for managing domestic wastewater. The facility is situated inland, approximately 50 kilometers from the nearest coast, and treats wastewater from the local community. As a U.S. facility, Princeton STP operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Kentucky Division of Water. For a plant serving around 6,300 people, secondary treatment is typically required, which involves biological processes to remove organic matter and suspended solids. The designed capacity is 1.00 million gallons per day, indicating the plant's scale. The treated effluent from Princeton STP is discharged into a receiving water body that ultimately drains into the Cumberland River basin, a major tributary of the Ohio River. The Ohio River flows into the Mississippi River, which empties into the Gulf of Mexico. The plant's operations help protect local water quality and downstream ecosystems.

Princeton STP discharges into a local waterway that flows into the Cumberland River basin, part of the larger Ohio River watershed. The Ohio River is a major tributary of the Mississippi River, which drains into the Gulf of Mexico. This region supports diverse aquatic life, including fish and invertebrates, and the plant's treatment helps maintain water quality standards for downstream uses such as recreation and drinking water.