Mansfield WWTP - Advanced Wastewater Treatment in Mansfield, Arkansas

Mansfield WWTP is an advanced wastewater treatment facility located in Mansfield, Arkansas, serving a population of approximately 1,139 residents. The plant is situated in Sebastian County and operates as part of the municipal infrastructure for the city. The plant provides advanced treatment, which goes beyond secondary treatment to remove nutrients and other pollutants. With a designed capacity of 1,703.43 million gallons per year and an actual discharge volume of 620.81 million gallons per year, the facility operates well within its capacity. As a US plant, it operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Arkansas Department of Energy and Environment - Division of Environmental Quality. The treated effluent is discharged into a local waterway that ultimately drains into the Arkansas River watershed, which flows into the Mississippi River and then to the Gulf of Mexico. The plant's advanced treatment helps protect downstream water quality in this important river system.

The plant discharges into a tributary of the Arkansas River, which flows through Arkansas and Oklahoma before joining the Mississippi River. The Arkansas River supports diverse aquatic life and provides habitat for fish species such as catfish and bass. The advanced treatment at Mansfield WWTP helps reduce nutrient loading, which is critical for preventing algal blooms in downstream waters, including the Gulf of Mexico hypoxic zone.