Hardinsburg STP - Municipal Wastewater Treatment in Hardinsburg, Kentucky

Hardinsburg STP is a municipal wastewater treatment facility located on Main Street in Hardinsburg, Breckinridge County, Kentucky. The plant serves a population of approximately 2,415 residents, placing it in the small-agglomeration category typical of rural Kentucky communities. As a US-based facility, the plant operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permitting, administered by the Kentucky Energy and Environment Cabinet. For plants of this scale, secondary treatment is the standard requirement, ensuring removal of organic matter and suspended solids before discharge. The treated effluent from Hardinsburg STP is discharged into a local waterway that ultimately drains into the Ohio River basin, a major tributary of the Mississippi River system. This watershed supports diverse aquatic life and provides drinking water for downstream communities, making proper treatment essential for regional water quality.

The plant discharges into a tributary of the Ohio River, which flows into the Mississippi River and eventually the Gulf of Mexico. The local watershed in Breckinridge County includes karst topography and sensitive groundwater resources. Proper wastewater treatment helps protect downstream aquatic habitats and recreational uses in the Ohio River basin.