Manteo WWTP - Secondary Treatment Plant in Manteo, North Carolina

Manteo WWTP is a municipal wastewater treatment facility located on Bowsertown Road in Manteo, Dare County, North Carolina. The plant serves a population of 1,434 and operates with secondary treatment, discharging an average of 995.56 million gallons per year. Its designed capacity is 2,271.24 million gallons per year, indicating ample capacity for current flows. As a secondary treatment facility, Manteo WWTP meets the minimum treatment requirements under the US Clean Water Act for municipal wastewater. The plant is regulated under the National Pollutant Discharge Elimination System (NPDES) permit program, administered by the North Carolina Department of Environmental Quality. For a small community of this size, secondary treatment is typical and effective for protecting local water quality. The plant is situated within 10 km of the Atlantic coast, making it a coastal facility. Its discharge likely enters the Roanoke Sound or nearby estuarine waters, which are part of the larger Albemarle-Pamlico estuarine system. This region supports diverse aquatic life, including important fisheries and migratory birds, and is sensitive to nutrient pollution from wastewater discharges.

Manteo WWTP discharges into the coastal waters of the Outer Banks, likely reaching the Roanoke Sound, which connects to the Albemarle Sound and ultimately the Atlantic Ocean. This estuarine environment is ecologically sensitive, supporting critical habitats for fish, shellfish, and waterfowl. The plant's secondary treatment helps reduce organic pollutants, but nutrient removal may be limited, posing a risk of eutrophication in the nutrient-sensitive coastal waters.