MSD Jeffersontown STP - Wastewater Treatment Plant in Jeffersontown, Kentucky

MSD Jeffersontown STP is a municipal wastewater treatment facility located at 10714 Old Taylorsville Road in Jeffersontown, Kentucky. The plant serves a population of approximately 20,000 people within the Jefferson County area, operating as part of the Metropolitan Sewer District (MSD) infrastructure. As a plant serving a medium-sized community, it operates under the U.S. Clean Water Act framework, which requires secondary treatment as a minimum standard for municipal wastewater facilities. The National Pollutant Discharge Elimination System (NPDES) permit program governs its discharge, ensuring compliance with water quality standards set by the Kentucky Division of Water. The treated effluent from the plant is discharged into local streams that flow into the Ohio River, a major tributary of the Mississippi River system. The Ohio River supports diverse aquatic life and provides drinking water for millions downstream. The plant's operations help protect water quality in this ecologically and economically significant watershed.

The plant discharges into local tributaries of the Ohio River, which flows into the Mississippi River and ultimately the Gulf of Mexico. The Ohio River basin supports a variety of fish species and is an important migratory corridor for birds. Protecting water quality in this watershed is critical for maintaining downstream ecosystems and recreational uses.