Dougherty WWT - Secondary Wastewater Treatment in Murray County, Oklahoma

Dougherty WWT is a municipal wastewater treatment facility located in Murray County, Oklahoma, serving a small community of 224 residents. 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 113.56 million gallons per year, the facility operates at full capacity based on reported discharge volumes. As a small-scale plant, it is subject to EPA NPDES permitting through the Oklahoma Department of Environmental Quality. The treated effluent is discharged into local streams that drain into the Washita River basin, eventually reaching the Red River and the Gulf of Mexico. The plant plays a key role in protecting water quality in this rural, agricultural region of south-central Oklahoma.

The plant discharges into tributaries of the Washita River, which flows southeast through Oklahoma into the Red River and ultimately the Gulf of Mexico. The local watershed supports diverse aquatic life and is important for regional agriculture. The plant's secondary treatment helps reduce nutrient and organic pollution, protecting downstream water quality in this ecologically sensitive basin.