Prospect WWTP and Sewer System - Marion County, Ohio Wastewater Treatment

Prospect WWTP and Sewer System is a municipal wastewater treatment facility located in Prospect Township, Marion County, Ohio, United States. The plant serves a small population of approximately 1,191 residents, reflecting its role in a rural or small-town community within the state. The facility employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. With a designed capacity of 908.50 units and an average daily discharge of 492.10 units, the plant operates well within its capacity. Under the U.S. Clean Water Act, such plants are regulated through National Pollutant Discharge Elimination System (NPDES) permits issued by the Ohio Environmental Protection Agency, ensuring compliance with water quality standards. The treated effluent is discharged into a local water body, likely a stream or river within the Scioto River basin, which flows into the Ohio River and ultimately the Mississippi River system. This downstream connection underscores the plant's role in protecting regional water quality and aquatic ecosystems.

The plant discharges into a tributary of the Scioto River, which flows south to the Ohio River and then to the Mississippi River. This watershed supports diverse aquatic life, including fish and macroinvertebrates, and provides drinking water for downstream communities. The advanced treatment helps reduce nutrient loading, protecting the river from eutrophication and maintaining ecological balance.