Elizabethtown Wastewater Treatment Plant - Kentucky, USA

The Elizabethtown wastewater treatment plant is a municipal facility located in Hardin County, Kentucky, serving a population of approximately 28,533. The plant is situated on Gaither Station Road and plays a key role in managing wastewater for the city of Elizabethtown and surrounding areas. As a US facility, the plant operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permitting. For a community of this size, secondary treatment is typically required, with additional nutrient removal if the receiving waters are sensitive. The plant's design and operation must meet state and federal effluent guidelines to protect water quality. The treated wastewater is discharged into local streams that ultimately flow into the Ohio River, a major tributary of the Mississippi River. The Ohio River supports diverse aquatic life and provides drinking water for millions downstream. Proper treatment at this plant helps maintain the ecological health of the watershed and prevents nutrient pollution that could contribute to hypoxia in the Gulf of Mexico.

The plant discharges into the Ohio River basin, which drains into the Mississippi River and eventually the Gulf of Mexico. This watershed supports diverse aquatic species and is an important migratory corridor for fish. Nutrient loading from wastewater can contribute to algal blooms and hypoxic zones in the Gulf, making effective treatment critical for downstream ecosystem health.