Portsmouth Sciotoville WWTP and Sewer System - Ohio Wastewater Treatment

Portsmouth Sciotoville WWTP and Sewer System is a municipal wastewater treatment facility located in Sciotoville, a community within Portsmouth, Ohio. The plant serves a population of 2,106 and operates under secondary treatment standards, which is the minimum required by the US Clean Water Act for municipal wastewater. The plant's designed capacity is 2,271.24 thousand cubic meters per day, with an average discharge volume of 617.02 thousand cubic meters per day. As a secondary treatment plant, it uses biological processes to remove organic matter and suspended solids. The facility is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Ohio Environmental Protection Agency, which set effluent limits to protect water quality. For a plant of this size, typical NPDES permits include monitoring for biochemical oxygen demand, total suspended solids, and pH. The treated effluent is discharged into the Ohio River basin, which flows into the Mississippi River and ultimately the Gulf of Mexico. The Ohio River supports diverse aquatic life and is a major drinking water source for millions. The plant's location inland and upstream of sensitive ecosystems means its discharge is regulated to prevent nutrient enrichment and protect downstream habitats.

The plant discharges into the Ohio River watershed, which drains into the Mississippi River and then the Gulf of Mexico. The Ohio River is a major tributary supporting diverse fish species and migratory birds. Downstream, the Mississippi River delta is an ecologically sensitive area that can be impacted by nutrient loads from upstream sources. The plant's secondary treatment helps reduce organic pollutants and nutrients, contributing to the health of this large river system.