West Carrollton WWTP and Sewer System - Ohio Wastewater Treatment Plant

The West Carrollton WWTP and Sewer System is a municipal wastewater treatment facility located in West Carrollton, Ohio, within Montgomery County. Serving a population of about 13,818, the plant is part of the region's infrastructure for managing domestic and industrial wastewater from the community. As a US facility, the plant is subject to the Clean Water Act and National Pollutant Discharge Elimination System (NPDES) permitting, which sets effluent limits to protect water quality. The plant discharges treated effluent into the local watershed, which ultimately drains into the Great Miami River and then the Ohio River, a major tributary of the Mississippi River. This downstream connection supports diverse aquatic life and provides water resources for communities along the river system.

The plant's treated effluent flows into the Great Miami River, which joins the Ohio River near Cincinnati. The Ohio River is a major waterway supporting commercial navigation, recreation, and aquatic habitats. The watershed is part of the Mississippi River basin, which drains into the Gulf of Mexico. The plant's discharge contributes to the overall nutrient and pollutant load in the river system, making treatment standards important for downstream water quality and ecological health.