Coal City RSD Wastewater Treatment Plant, Greene County, Indiana

Coal City RSD is a planned wastewater treatment facility located in Greene County, Indiana, United States. Designed to serve a population of 2,156, the plant will provide secondary treatment to municipal wastewater, meeting the standard requirements for communities of this size under the U.S. Clean Water Act. The plant's designed capacity is 757.08 cubic meters per day, with a corresponding discharge volume. As a projected facility, it is not yet operational but will be subject to National Pollutant Discharge Elimination System (NPDES) permitting by the Indiana Department of Environmental Management once constructed. The treated effluent will be discharged to a local waterway within the Wabash River basin, which ultimately drains to the Ohio River and then the Mississippi River. The plant's operation will help protect downstream aquatic ecosystems by reducing pollutant loads.

The plant will discharge into a tributary of the Wabash River, which flows through Indiana before joining the Ohio River. This watershed supports diverse aquatic life, including fish species such as bass and catfish, and provides habitat for migratory birds. Proper treatment is essential to prevent nutrient enrichment and maintain water quality in the downstream river system.