Calhoun WWTP - Secondary Wastewater Treatment in Calhoun, Kentucky

Calhoun WWTP is a municipal wastewater treatment facility located in Calhoun, McLean County, Kentucky. Serving a population of 1,340, the plant provides secondary treatment to manage domestic wastewater from the community. The plant has a designed capacity of 1,514.16 cubic meters per day and currently discharges an average volume of 647.31 cubic meters per day. As a secondary treatment plant, Calhoun WWTP meets the standard requirements under the U.S. Clean Water Act, which mandates secondary treatment for municipal facilities to reduce organic pollutants and suspended solids. The plant operates under a National Pollutant Discharge Elimination System (NPDES) permit issued by the Kentucky Division of Water, ensuring compliance with federal and state water quality standards. The treated effluent from Calhoun WWTP is discharged into the Green River watershed, which flows into the Ohio River and ultimately the Mississippi River. The Green River supports diverse aquatic life and is an important ecological corridor in western Kentucky. The plant's operations help protect downstream water quality and maintain the health of the river ecosystem.

Calhoun WWTP discharges into the Green River basin, a tributary of the Ohio River, which flows into the Mississippi River and the Gulf of Mexico. The Green River supports a variety of fish and wildlife, including several species of freshwater mussels. The plant's secondary treatment helps reduce nutrient and pollutant loads, protecting downstream aquatic habitats and recreational uses.