Hinton WWT Wastewater Treatment Plant, Hinton, Oklahoma

Hinton WWT is a municipal wastewater treatment facility located on East Main Street in Hinton, Caddo County, Oklahoma. The plant serves a population of about 2,175 people, classifying it as a small community system under US regulatory standards. It operates as part of the town's essential infrastructure, managing domestic wastewater from the local area. The plant provides secondary treatment, which is the minimum standard required by the US Clean Water Act for municipal wastewater facilities. With a designed capacity of 946.35 megaliters per year and an actual discharge volume of 832.79 megaliters, the plant operates at a utilization rate that suggests it has reserve capacity. As a small-scale facility, it is subject to state-level National Pollutant Discharge Elimination System (NPDES) permitting overseen by the Oklahoma Department of Environmental Quality. The treated effluent is discharged into a local watercourse that ultimately drains into the Washita River basin, part of the larger Red River watershed. This system flows southward through Oklahoma and Texas before reaching the Gulf of Mexico. The plant's discharge contributes to the hydrology of this semi-arid region, where water quality management is important for downstream agricultural and ecological uses.

The plant discharges into a tributary of the Washita River, which flows into the Red River and eventually the Gulf of Mexico. This watershed supports diverse aquatic life and is an important corridor for migratory birds. The surrounding region is characterized by mixed-grass prairie and agricultural land, where maintaining water quality is critical for both ecological health and downstream water users.