Anadarko PWA WWT Wastewater Treatment Plant, Anadarko, Oklahoma

Anadarko PWA WWT is a municipal wastewater treatment plant located in Anadarko, Caddo County, Oklahoma. It serves a population of approximately 6,645 residents, classifying it as a small to medium-sized facility within the state's wastewater infrastructure. As a US-based plant, it operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Oklahoma Department of Environmental Quality. For a facility of this scale, secondary treatment is typically required to meet effluent limits for biochemical oxygen demand and total suspended solids. The plant's treated effluent is discharged into local waterways that drain into the Washita River, a tributary of the Red River, which ultimately flows into the Mississippi River and the Gulf of Mexico. This downstream connection underscores the plant's role in protecting water quality in the Red River basin.

The plant's discharge enters the Washita River watershed, which flows through central Oklahoma and joins the Red River near the Texas-Oklahoma border. The Red River then empties into the Mississippi River and the Gulf of Mexico. The Washita River supports diverse aquatic life and provides habitat for fish and migratory birds, making proper treatment essential for maintaining ecological health in this semi-arid region.