MSD Floyds Fork STP - Louisville, Kentucky Wastewater Treatment Plant

MSD Floyds Fork STP is a municipal wastewater treatment facility located in Louisville, Kentucky, serving a population of about 11,550. The plant is part of the Metropolitan Sewer District (MSD) infrastructure, which manages wastewater for the Louisville metropolitan area. As a medium-sized agglomeration, the plant operates under the U.S. Clean Water Act, which requires secondary treatment as a minimum standard for municipal wastewater. The facility treats wastewater from residential and commercial sources in the eastern part of Jefferson County. Plants of this scale typically employ biological treatment followed by disinfection to meet National Pollutant Discharge Elimination System (NPDES) permit requirements. It is sized to handle the needs of its service area. Treated effluent from the plant is discharged into Floyds Fork, a tributary of the Salt River, which flows into the Ohio River. The Ohio River is a major waterway that drains into the Mississippi River and ultimately the Gulf of Mexico. The plant plays a key role in protecting local water quality and supporting aquatic life in the Floyds Fork watershed.

The plant discharges into Floyds Fork, a stream that flows through eastern Jefferson County and joins the Salt River near Shepherdsville. The Salt River then flows into the Ohio River, a major tributary of the Mississippi River system. The Floyds Fork watershed supports diverse aquatic habitats and is important for local recreation and wildlife. Protecting water quality in this stream is essential for maintaining the ecological health of the larger Ohio River basin.