Roan Mtn SP STP - Secondary Wastewater Treatment in Roan Mountain, Tennessee

Roan Mtn SP STP is a municipal wastewater treatment facility located in Roan Mountain, Tennessee, within the Appalachian region of the United States. The plant serves a small population of 700 residents and operates under secondary treatment standards, which is the minimum required by the US Clean Water Act for municipal plants. The plant has a designed capacity of 136.27 megaliters per year and currently discharges 132.49 megaliters per year of treated effluent. As a secondary treatment facility, it uses biological processes to reduce organic matter and suspended solids before discharge. The plant is regulated under the National Pollutant Discharge Elimination System (NPDES) permit program, administered by the Tennessee Department of Environment and Conservation. The treated wastewater is discharged into a local stream that flows into the Doe River, a tributary of the Watauga River, which eventually drains into the South Fork Holston River and the Tennessee River system. The surrounding watershed supports diverse aquatic life and provides recreational opportunities in the Cherokee National Forest.

The plant discharges into a small stream that feeds the Doe River, part of the Tennessee River basin. The downstream waters support coldwater fisheries and are used for recreation. The area is ecologically sensitive due to its location in the Southern Appalachian Mountains, with forested watersheds that provide habitat for native trout and other aquatic species.