LORETTO STP Wastewater Treatment Plant, Chinubee, Tennessee

LORETTO STP is a municipal wastewater treatment plant located on Busby Road in Chinubee, Lawrence County, Tennessee. The facility serves a population of approximately 2,300 residents, placing it in the small-agglomeration category under US regulatory frameworks. The plant provides secondary treatment, which is the minimum standard required by the US Clean Water Act for municipal wastewater facilities. With a designed capacity of 851.72 thousand gallons per day and an average discharge volume of 529.96 thousand gallons per day, the plant operates below its capacity, indicating room for future growth. As a US facility, it operates under a National Pollutant Discharge Elimination System (NPDES) permit issued by the Tennessee Department of Environment and Conservation. The treated effluent is discharged into a receiving water body within the Tennessee River basin, which ultimately flows into the Ohio River and then the Mississippi River. The plant plays a key role in protecting local water quality and downstream ecosystems, including the diverse aquatic habitats of the Tennessee River system.

The plant discharges into a tributary of the Tennessee River, which flows through the Appalachian region before joining the Ohio River and eventually the Mississippi River. The Tennessee River basin supports diverse aquatic life, including numerous fish species and migratory birds. The plant's secondary treatment helps reduce nutrient and organic pollutant loads, protecting downstream water quality in this ecologically significant watershed.