Washington CH WWTP and Sewers - Washington Court House, Ohio Wastewater Treatment Plant

Washington CH WWTP and Sewers is a municipal wastewater treatment facility located in Washington Court House, Fayette County, Ohio. The plant serves a population of about 14,660 people, reflecting a medium-sized agglomeration typical of rural county seats in the Midwestern United States. Its location along Paint Creek Recreational Trail places it within the Paint Creek watershed, a tributary of the Scioto River system. As a US facility, the plant operates under the Clean Water Act, administered by the Ohio Environmental Protection Agency (Ohio EPA) through the National Pollutant Discharge Elimination System (NPDES) permit program. For a plant serving this population size, secondary treatment is the federal minimum standard, though many facilities in the region employ additional nutrient removal to address downstream water quality concerns in the Ohio River basin. The plant's treated effluent ultimately flows into Paint Creek, then into the Scioto River, which drains into the Ohio River and eventually the Mississippi River system. This watershed supports diverse aquatic life and provides drinking water for downstream communities. The plant plays a key role in protecting local water quality in an agricultural region where nutrient runoff is a concern.

The plant discharges into Paint Creek, a tributary of the Scioto River, which flows into the Ohio River and then the Mississippi River. The Scioto River basin supports diverse fish and macroinvertebrate communities and is an important migratory corridor for birds. Downstream waters are used for recreation and drinking water, making nutrient and pathogen removal critical for ecological and public health.