CYRIL WWT Wastewater Treatment Plant, Caddo County, Oklahoma

CYRIL WWT is a municipal wastewater treatment facility located in Caddo County, Oklahoma, within the United States. The plant serves a small population of 1,168 residents, reflecting its role in a rural or small-town community. As a secondary treatment plant, it provides biological treatment to reduce organic matter and suspended solids before discharge. The plant operates under the regulatory framework of the U.S. Clean Water Act, which requires National Pollutant Discharge Elimination System (NPDES) permits for all point source discharges. For small agglomerations like CYRIL WWT, secondary treatment is the standard requirement, ensuring compliance with federal effluent guidelines. The plant's designed capacity of 511.03 units and actual discharge volume of 454.25 units indicate it is operating below capacity, with room for future growth. The treated effluent 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 location inland, far from the coast, reduces direct marine impact but still plays a role in protecting downstream aquatic ecosystems and water quality in the region.

CYRIL WWT discharges into a receiving water body within the Washita River watershed, which drains into the Red River and eventually the Gulf of Mexico. The plant's secondary treatment helps protect local streams from organic pollution and nutrient loading, supporting aquatic life and recreational uses. The surrounding area is predominantly rural with agricultural land use, so the plant's effluent management is important for maintaining water quality in downstream reservoirs and rivers.