Nelsonville WWTP and Sewer System - Municipal Wastewater Treatment in Nelsonville, Ohio

The Nelsonville WWTP and Sewer System is a municipal wastewater treatment facility located in Nelsonville, Ohio, serving a population of about 5,804. The plant is situated along Hocking Parkway in Trimble Township, Athens County, and plays a key role in managing wastewater for this southeastern Ohio community. As a facility serving a small agglomeration, the plant is subject to the U.S. Clean Water Act and operates under an EPA NPDES permit issued by the Ohio Environmental Protection Agency. For communities of this size, secondary treatment is typically required to meet effluent limits for biochemical oxygen demand and total suspended solids. The plant discharges treated effluent to the Hocking River, which flows into the Ohio River and ultimately the Mississippi River system. The Hocking River supports diverse aquatic life and is an important recreational resource for the region. Proper treatment helps protect water quality in this ecologically sensitive watershed.

The Nelsonville WWTP discharges into the Hocking River, a tributary of the Ohio River. The Hocking River watershed supports diverse fish and macroinvertebrate communities and is used for recreation. Downstream, the Ohio River provides drinking water and habitat for numerous species. Effective wastewater treatment is critical to prevent nutrient enrichment and maintain aquatic health in this inland river system.