Mahoning Co New Middletown WWTP: Youngstown, Ohio Wastewater Treatment Plant

Mahoning Co New Middletown WWTP is a municipal wastewater treatment facility located in Youngstown, Ohio, within Mahoning County. The plant serves a population of approximately 2,500 residents, classifying it as a small-scale treatment facility under U.S. regulatory frameworks. As a U.S. wastewater plant, it operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Ohio Environmental Protection Agency. For small agglomerations like this, secondary treatment is typically required to meet effluent standards before discharge. The plant's treated effluent is released into local streams that flow into the Mahoning River, a tributary of the Beaver River, which ultimately drains into the Ohio River. The Mahoning River watershed supports diverse aquatic life and is an important ecological corridor in northeastern Ohio.

The plant discharges into tributaries of the Mahoning River, which flows through northeastern Ohio and into the Beaver River, a major Ohio River tributary. The Mahoning River watershed supports diverse fish and macroinvertebrate communities and is an important migratory corridor for aquatic species. Downstream, the Ohio River provides drinking water and recreational resources for millions of people.