ROCKY WWT Wastewater Treatment Plant, Washita County, Oklahoma

ROCKY WWT is a wastewater treatment facility located in Washita County, Oklahoma, United States. The plant serves a small population of 174 residents, reflecting its role in a rural community. As a secondary treatment plant, it provides biological treatment to reduce organic matter and suspended solids before discharge. The plant operates under the U.S. Clean Water Act, which requires National Pollutant Discharge Elimination System (NPDES) permits for all point source discharges. For small-scale facilities like ROCKY WWT, secondary treatment is the standard requirement, ensuring compliance with federal water quality standards. The designed capacity of 75.71 volume units matches the current discharge volume, indicating full utilization. The treated effluent is discharged into a local water body, contributing to the watershed of the Washita River basin. This river flows into the Red River and eventually the Gulf of Mexico. The plant's inland location, over 50 km from the coast, reduces direct marine impact, but its discharge still affects local aquatic ecosystems and downstream water quality.

ROCKY WWT discharges into a tributary of the Washita River, which flows into the Red River and ultimately the Gulf of Mexico. The Washita River basin supports diverse aquatic life and is important for regional agriculture and recreation. The plant's secondary treatment helps protect local streams from excessive nutrient loading and organic pollution, maintaining ecological balance in this semi-arid region.