Versailles WWTP and Sewer System | Wastewater Treatment in Versailles, Ohio

The Versailles WWTP and Sewer System is a municipal wastewater treatment facility located in Versailles, Darke County, Ohio. It serves a small community of about 2,589 people, typical of rural agglomerations in the Midwestern United States. The plant is situated at 300 Grand Avenue, near the headwaters of the Great Miami River watershed. As a small publicly owned treatment works (POTW) in the United States, the plant is subject to National Pollutant Discharge Elimination System (NPDES) permitting under the Clean Water Act. Facilities of this scale typically employ secondary treatment processes, such as activated sludge or lagoon systems, to meet effluent limits for biochemical oxygen demand and total suspended solids. Regulatory compliance is enforced by the Ohio Environmental Protection Agency. The plant discharges treated effluent into a tributary of the Great Miami River, which flows southwest to the Ohio River and ultimately to the Mississippi River and the Gulf of Mexico. The receiving waters support aquatic life and are used for recreation and drinking water downstream. The plant plays a key role in protecting local water quality in the agriculturally dominated Darke County region.

The plant discharges into a small tributary within the Great Miami River basin, which drains into the Ohio River and then the Mississippi River to the Gulf of Mexico. The watershed is primarily agricultural, with runoff from croplands contributing nutrient loads. The plant's effluent must meet limits to prevent eutrophication and protect fish habitat in the receiving stream, which is part of a larger river system supporting diverse aquatic species.