WELLSTON PWA WWT - Secondary Wastewater Treatment Plant in Wellston, Oklahoma

WELLSTON PWA WWT is a municipal wastewater treatment facility located in Wellston, Lincoln County, Oklahoma. The plant serves a small population of 825 residents, reflecting the rural character of the community. It operates under the regulatory framework of the US Clean Water Act, which governs wastewater discharges through the National Pollutant Discharge Elimination System (NPDES) permitting program. The plant provides secondary treatment, a standard level for small communities in the United States. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The plant's designed capacity is 454.25 units, and it currently treats an average daily flow of 340.69 units, indicating operational headroom. Facilities of this scale are generally required to meet effluent limits for biochemical oxygen demand, total suspended solids, and other parameters. The treated effluent is discharged into a local waterway that ultimately drains into the Arkansas River basin, part of the larger Mississippi River watershed. This downstream connection highlights the plant's role in protecting water quality in a region characterized by agricultural land use and periodic drought conditions. Proper treatment helps safeguard aquatic habitats and downstream water resources.

The plant discharges into a tributary of the Arkansas River, which flows through Oklahoma and Arkansas before joining the Mississippi River. The receiving waters support diverse aquatic life, including fish species such as catfish and bass, and provide habitat for migratory birds. The region's semi-arid climate means that maintaining water quality is critical for both ecological health and human uses like irrigation and recreation.