Corinth STP - Secondary Wastewater Treatment Plant in Corinth, Kentucky

Corinth STP is a municipal wastewater treatment facility located in Corinth, Grant County, Kentucky, United States. The plant serves a small population of 140 residents, reflecting the rural character of the area. The plant provides secondary treatment, which is the standard biological treatment level required under the U.S. Clean Water Act for municipal wastewater. With a designed capacity of 136.27 units and an actual discharge volume of 75.71 units, the facility operates below its capacity. As a U.S. plant, it operates under an EPA NPDES permit issued by the Kentucky Division of Water, ensuring compliance with effluent limits. The treated effluent from Corinth STP is discharged into a local water body that ultimately drains into the Ohio River basin, a major tributary of the Mississippi River. The plant plays a key role in protecting local water quality in the rural Kentucky landscape, supporting downstream aquatic ecosystems and recreational uses.

The plant discharges into a local stream that flows into the Ohio River basin, which drains into the Mississippi River and eventually the Gulf of Mexico. The receiving waters support diverse aquatic life and are important for regional biodiversity. The plant's secondary treatment helps reduce nutrient and organic loads, mitigating potential impacts on downstream ecosystems.