The City of Mount Airy has one wastewater treatment plant, which is located just south of the intersection of U.S. Highway 52 and the Ararat River. Approximately 90% of the average daily flow from the water plants is treated at the wastewater plant and is discharged into the Ararat River.
The wastewater treatment plant personnel are committed to treating the City of Mount Airy's residential, commercial, and industrial wastewater to a safe quality level that meets or exceeds state and federal regulations.