Banner Elk WWTP - Secondary Treatment Plant in Banner Elk, North Carolina

Banner Elk WWTP is a municipal wastewater treatment facility located in Banner Elk, North Carolina, serving a population of approximately 1,020 residents. The plant provides secondary treatment, a standard level for small communities in the United States, ensuring that pollutants are reduced to meet environmental standards before discharge. The plant has a designed capacity of 2,271.24 cubic meters per day and currently treats an average daily flow of 760.87 cubic meters, indicating ample reserve capacity. As a US facility, it operates under the National Pollutant Discharge Elimination System (NPDES) permit program, which sets effluent limits and monitoring requirements to protect water quality. The treated effluent is discharged into local streams that drain into the Watauga River, a tributary of the South Fork Holston River, which ultimately flows into the Tennessee River system. This watershed supports diverse aquatic life and provides drinking water for downstream communities. The plant's secondary treatment helps reduce nutrient loading and protect the ecological health of these waterways.

The plant discharges into the Watauga River watershed, which flows into the South Fork Holston River and then the Tennessee River, eventually reaching the Mississippi River and the Gulf of Mexico. This region supports diverse aquatic species, including fish and macroinvertebrates, and the plant's secondary treatment helps control nutrient pollution that could otherwise contribute to algal blooms in downstream reservoirs.