SEMINOLE 3 CROMWELL WWT - Secondary Wastewater Treatment in Cromwell, Oklahoma

SEMINOLE 3 CROMWELL WWT is a municipal wastewater treatment facility located in Cromwell, Seminole County, Oklahoma. The plant serves a small population of 265 residents and is part of the local infrastructure managed under state and federal regulations. The plant provides secondary treatment, which is the standard biological treatment required by the US Clean Water Act for most municipal facilities. With a designed capacity of 102.21 million gallons per year and an actual discharge volume of 94.64 million gallons per year, the plant operates at a high utilization rate. As a US facility, it operates under an EPA NPDES permit issued by the Oklahoma Department of Environmental Quality, which sets effluent limits to protect water quality. The treated effluent is discharged into a local receiving water body, which ultimately drains into the Canadian River system and then into the Arkansas River, part of the Mississippi River basin. The plant plays a role in protecting downstream aquatic ecosystems and maintaining water quality in the region.

The plant discharges into a local watercourse that flows into the Canadian River, a tributary of the Arkansas River, which eventually reaches the Mississippi River and the Gulf of Mexico. The surrounding watershed supports diverse aquatic life and is important for regional water resources. The plant's secondary treatment helps reduce organic pollutants and suspended solids, protecting downstream habitats.