LOUDON STP Wastewater Treatment Plant, Loudon, Tennessee

LOUDON STP is a municipal wastewater treatment plant located in Loudon, Tennessee, within the Blair Bend Industrial Park. The facility serves a population of about 10,251 residents, classifying it as a medium-sized agglomeration under US EPA guidelines. As a US-based plant, LOUDON STP operates under the National Pollutant Discharge Elimination System (NPDES) permit program, which sets effluent limits and monitoring requirements. Plants of this scale typically employ secondary treatment to meet Clean Water Act standards. The plant discharges into the Tennessee River watershed, which flows through East Tennessee and ultimately drains into the Ohio River and Mississippi River system. The receiving waters support diverse aquatic life and are used for recreation and drinking water downstream.

LOUDON STP discharges into the Tennessee River basin, a major tributary of the Ohio River. The Tennessee River flows through the Appalachian region and supports a variety of fish species, including bass and catfish. Downstream, the river contributes to the Mississippi River system, which empties into the Gulf of Mexico. The watershed is ecologically sensitive, with seasonal variations in flow and nutrient levels that require careful management to prevent eutrophication.