Beech Mountain_Grassy Gap WWTP - Secondary Treatment in Beech Mountain, North Carolina

Beech Mountain_Grassy Gap WWTP is a municipal wastewater treatment facility located in Beech Mountain, Watauga County, North Carolina. The plant serves a small population of 367 residents and is situated in the mountainous region of the Blue Ridge Mountains. The plant provides secondary treatment, which is the standard level required by the US Clean Water Act for municipal wastewater facilities. With a designed capacity of 302.83 megaliters, the plant operates well below its capacity, treating an average of 113.56 megaliters per year. As a US facility, it operates under an NPDES permit issued by the North Carolina Department of Environmental Quality, ensuring compliance with federal water quality standards. The treated effluent is discharged into Grassy Gap Creek, a tributary of the Watauga River, which flows into the South Fork Holston River and ultimately the Tennessee River system. This watershed supports diverse aquatic life and provides drinking water for downstream communities. The plant's location in a headwater region makes its discharge quality critical for maintaining the ecological health of the upper Tennessee River basin.

The plant discharges into Grassy Gap Creek, a small mountain stream that feeds the Watauga River, part of the Tennessee River basin. This watershed drains into the Mississippi River and the Gulf of Mexico. The region's steep terrain and sensitive aquatic ecosystems require careful management of nutrient and sediment loads to protect downstream water quality and habitat for species such as brook trout and freshwater mussels.