Sentinel WWT Wastewater Treatment Plant, Washita County, Oklahoma

Sentinel WWT is a municipal wastewater treatment facility located in Washita County, Oklahoma, United States. The plant serves a small population of 901 residents, reflecting its role in a rural community within the state's southwestern region. The plant provides secondary treatment, which is the standard level required by the US Clean Water Act for most municipal facilities. Secondary treatment typically involves biological processes to remove organic matter and suspended solids. The plant's designed capacity is 302.83 volume units, and it discharges a similar volume, indicating full utilization of its capacity. The treated effluent from Sentinel WWT is discharged into a local water body, likely a stream or river within the Washita River basin, which flows into the Red River and ultimately the Gulf of Mexico. The plant's operations help protect downstream water quality and aquatic ecosystems in this inland region.

Sentinel WWT discharges into a water body within the Washita River basin, which drains into the Red River and then the Gulf of Mexico. The surrounding area is part of the Southern Great Plains, characterized by agricultural land use and intermittent streams. The plant's secondary treatment helps reduce nutrient and organic loads, supporting the ecological health of downstream waters.