Oak Hill WWTP and Sewer System - Hitchcock, Ohio Advanced Wastewater Treatment

Oak Hill WWTP and Sewer System is a wastewater treatment facility located in Hitchcock, Jefferson Township, Jackson County, Ohio. It serves a small population of around 1,685 residents, reflecting its role in managing municipal wastewater for a rural community in the Appalachian region of southeastern Ohio. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. With a designed capacity of 1,135.62 million gallons per day and a current discharge volume of 719.23 million gallons per day, the facility operates under the regulatory framework of the U.S. Clean Water Act, which requires National Pollutant Discharge Elimination System (NPDES) permits for all discharges to surface waters. The treated effluent from the plant is discharged into local waterways that ultimately drain into the Ohio River basin. The plant's advanced treatment helps protect downstream water quality, supporting aquatic life and recreational uses in the region's streams and rivers.

The plant discharges into local streams that are part of the Ohio River watershed, which flows into the Mississippi River and eventually the Gulf of Mexico. The region's aquatic ecosystems support diverse fish and macroinvertebrate communities, and advanced treatment helps reduce nutrient loading that could contribute to hypoxia in the Gulf.