BENSON WWTP - Allens Crossroads, North Carolina Wastewater Treatment Plant

BENSON WWTP is a municipal wastewater treatment facility located in Allens Crossroads, Johnston County, North Carolina. The plant serves a population of approximately 3,052 residents, classifying it as a small community facility within the state's wastewater infrastructure network. As a US-based plant serving fewer than 10,000 people, BENSON WWTP is subject to EPA National Pollutant Discharge Elimination System (NPDES) permitting requirements administered by the North Carolina Department of Environmental Quality. Small treatment plants in this population tier typically employ secondary treatment processes such as activated sludge or lagoon systems to meet state and federal effluent standards. The plant discharges treated wastewater into local waterways within the Neuse River basin, which ultimately drains into the Neuse River estuary and Pamlico Sound. This watershed supports diverse aquatic life and provides critical habitat for migratory fish species, making proper treatment essential for downstream ecological health.

The plant's treated effluent enters tributaries of the Neuse River, which flows through eastern North Carolina into the Neuse River estuary and Pamlico Sound. This watershed supports a variety of aquatic species and serves as an important nursery for estuarine fish and shellfish. Maintaining nutrient removal standards is critical to prevent algal blooms and hypoxia in the downstream estuary.