LOUISA STP Wastewater Treatment Plant, Louisa, Kentucky

LOUISA STP is a wastewater treatment plant located in Louisa, Lawrence County, Kentucky, serving a population of about 5,180. The facility is part of the municipal wastewater system for the city of Louisa, situated in the eastern part of the state near the West Virginia border. As a small to medium-sized agglomeration, the plant is expected to provide secondary treatment under the U.S. Clean Water Act, which sets minimum standards for wastewater treatment. The plant's operations are likely regulated through a Kentucky Pollutant Discharge Elimination System (KPDES) permit, issued by the Kentucky Division of Water, ensuring compliance with federal and state water quality standards. The treated effluent from LOUISA STP is discharged into a local water body that ultimately drains into the Big Sandy River, a tributary of the Ohio River. The Ohio River flows into the Mississippi River, which empties into the Gulf of Mexico. The plant plays a role in protecting the water quality of these downstream waters, supporting aquatic life and recreational uses.

The plant discharges into a tributary of the Big Sandy River, which flows into the Ohio River and then the Mississippi River, eventually reaching the Gulf of Mexico. The watershed supports diverse aquatic life and is important for regional biodiversity. The plant's operations help maintain water quality in this ecologically significant river system.