SYMSONIA WD Wastewater Treatment Plant, Symsonia, Kentucky

SYMSONIA WD is a wastewater treatment facility located in Symsonia, Graves County, Kentucky, serving a small population of 872 residents. The plant operates under the regulatory framework of the U.S. Clean Water Act, which requires National Pollutant Discharge Elimination System (NPDES) permits for all discharges to surface waters. The plant provides advanced treatment, which goes beyond secondary treatment to remove additional nutrients and contaminants. It has a designed capacity of 378.54 megaliters and treats an annual discharge volume of 189.27 megaliters, indicating it operates well within its capacity. The treated effluent is discharged into local waterways that ultimately drain into the Mississippi River basin, contributing to the overall water quality of the region. The plant plays a key role in protecting downstream aquatic ecosystems and supporting the environmental health of the surrounding area.

The plant discharges into receiving waters that flow into the Mississippi River system, which drains into the Gulf of Mexico. This watershed supports diverse aquatic life and is important for migratory birds. Advanced treatment helps reduce nutrient loading, which is critical for mitigating hypoxia in the Gulf.