KIOWA WWT - Secondary Wastewater Treatment Plant in Kiowa, Oklahoma

KIOWA WWT is a municipal wastewater treatment facility located in Kiowa, Oklahoma, United States. The plant serves a small population of 693 residents, reflecting the rural character of Pittsburg County. It operates as a secondary treatment facility, which is the standard for small communities under the U.S. Clean Water Act. The plant has a designed capacity of 302.83 m³/day and discharges an average volume of 261.19 m³/day, indicating it operates below capacity. As a secondary treatment plant, it uses biological processes to remove organic matter and suspended solids, meeting the effluent limits set by the National Pollutant Discharge Elimination System (NPDES) permit program administered by the Oklahoma Department of Environmental Quality. The treated effluent is discharged into a local waterway that drains into the Canadian River basin, eventually reaching the Arkansas River and the Mississippi River system. This discharge supports the ecological health of the downstream watershed, providing dilution and nutrient cycling for aquatic life in the region.

KIOWA WWT discharges into a tributary of the Canadian River, which flows through eastern Oklahoma before joining the Arkansas River. The Arkansas River then drains into the Mississippi River, ultimately reaching the Gulf of Mexico. The local watershed supports diverse aquatic habitats, including fish and macroinvertebrate communities, and the plant's secondary treatment helps protect water quality in this inland river system.