Valley Brook WWT - Secondary Treatment Plant in Valley Brook, Oklahoma

Valley Brook WWT is a municipal wastewater treatment plant located in Valley Brook, Oklahoma, a small community within Oklahoma County. The plant serves a population of 840 and is part of the region's wastewater infrastructure, handling domestic sewage from the local area. The plant provides secondary treatment, which is the standard level required by the US Clean Water Act for municipal facilities. It has a designed capacity of 257.41 thousand cubic meters and an actual discharge volume of 302.83 thousand cubic meters, indicating operation near or slightly above capacity. 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 water body that ultimately drains into the Canadian River watershed, part of the Arkansas-White-Red River basin. This system flows into the Arkansas River and eventually the Mississippi River, supporting diverse aquatic life and regional water resources.

The plant discharges into a tributary of the Canadian River, which flows through central Oklahoma and joins the Arkansas River near Muskogee. The Arkansas River continues to the Mississippi River, a major ecological corridor for migratory birds and fish. The watershed supports agricultural and urban water uses, and the plant's secondary treatment helps reduce nutrient and organic loads to protect downstream water quality.