Oil Trough WWTP - Dunnington, Arkansas Wastewater Treatment Plant

Oil Trough WWTP is a municipal wastewater treatment facility located in Dunnington, Independence County, Arkansas. It serves a small population of approximately 260 residents, reflecting its role in a rural community. The plant operates under the regulatory framework of the United States Clean Water Act, which requires secondary treatment for municipal wastewater discharges. The plant provides secondary treatment, a standard biological process that removes organic matter and suspended solids. With a designed capacity of 132.49 units, the facility operates well below its capacity, indicating room for future growth. The daily discharge volume of 15.14 units suggests consistent operation for the local population. The treated effluent is discharged into a local water body, likely a tributary of the White River, which flows into the Mississippi River and eventually the Gulf of Mexico. This downstream connection highlights the plant's role in protecting water quality in the region's aquatic ecosystems.

The plant discharges into a local waterway that is part of the White River basin, which drains into the Mississippi River and ultimately the Gulf of Mexico. This watershed supports diverse aquatic life and is important for regional biodiversity. The secondary treatment helps reduce nutrient and pollutant loads, protecting downstream habitats and water quality.