Covington WWT Wastewater Treatment Plant, Garfield County, Oklahoma

Covington WWT is a municipal wastewater treatment facility located in Garfield County, Oklahoma, serving a small population of 553 residents. The plant provides secondary treatment, a standard level for communities of this size in the United States. The plant has a designed capacity of 264.98 thousand cubic meters per year, matching its discharge volume, indicating full utilization. As a US facility, it operates under the Clean Water Act, with National Pollutant Discharge Elimination System (NPDES) permits issued by the Oklahoma Department of Environmental Quality, ensuring compliance with effluent limits. The treated effluent is discharged into local waterways that ultimately drain into the Arkansas River basin, part of the Mississippi River watershed. This contributes to the ecological health of downstream aquatic habitats, supporting diverse fish and wildlife populations in the region.

The plant's discharge enters tributaries of the Arkansas River, which flows through Oklahoma and Arkansas before joining the Mississippi River. This watershed supports a variety of aquatic species and provides water for agricultural and municipal use. The secondary treatment process helps reduce organic pollutants and suspended solids, protecting the downstream environment from nutrient enrichment and oxygen depletion.