HASKELL PWA WWT - Secondary Wastewater Treatment Plant in Muskogee County, Oklahoma

HASKELL PWA WWT is a municipal wastewater treatment facility located in Muskogee County, Oklahoma, United States. The plant serves a population of approximately 2,007 and operates under the regulatory framework of the US Clean Water Act, which requires secondary treatment for all publicly owned treatment works. The plant provides secondary treatment, a standard biological process that removes organic matter and suspended solids. With a design capacity of 1,476.31 m³/day and an average daily discharge of 757.08 m³/day, the facility operates well within its capacity, ensuring reliable treatment for the community. The treated effluent is discharged into local waterways that drain into the Arkansas River basin, ultimately reaching the Mississippi River and the Gulf of Mexico. The plant plays a key role in protecting downstream water quality in this agriculturally and ecologically important region.

The plant discharges into tributaries of the Arkansas River, which flows through Oklahoma and Arkansas before joining the Mississippi River. The Arkansas River basin supports diverse aquatic life and provides water for irrigation and recreation. The plant's secondary treatment helps reduce nutrient and organic loads, protecting downstream ecosystems from eutrophication and oxygen depletion.