Blanchester WWTP and Sewer System - Ohio Wastewater Treatment Plant

Blanchester WWTP and Sewer System is a municipal wastewater treatment facility located at 604 West Main Street in Blanchester, Ohio, within Clinton County. The plant serves a population of about 4,220 people, classifying it as a small to medium-sized facility under US regulatory standards. As a US-based 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 communities of this scale, secondary treatment is typically required to meet effluent limits for biochemical oxygen demand and total suspended solids. The plant's treated effluent is discharged to local streams that ultimately drain into the Ohio River basin. This watershed supports diverse aquatic life and provides drinking water for downstream communities. Proper treatment is essential to protect water quality in this region.

The plant discharges into tributaries of the Ohio River, which flows into the Mississippi River and eventually the Gulf of Mexico. The local watershed is part of the Ohio River basin, an ecologically important corridor for fish and migratory birds. Maintaining treatment standards helps prevent nutrient pollution and protects downstream aquatic habitats.