Boise City WWT - Secondary Wastewater Treatment Plant in Boise City, Oklahoma

Boise City WWT is a municipal wastewater treatment facility located in Boise City, Cimarron County, Oklahoma, United States. The plant serves a small population of 1,483 residents, reflecting the rural character of the Oklahoma Panhandle region. It operates under the regulatory framework of the US Clean Water Act, which requires secondary treatment for municipal discharges to protect water quality. The plant provides secondary treatment, a standard biological process that removes organic matter and suspended solids. With a designed capacity of 757.08 units and an average daily discharge of 567.81 units, the facility operates below its capacity, indicating room for future growth. As a small inland plant, it is not subject to coastal discharge regulations but must comply with state-level National Pollutant Discharge Elimination System (NPDES) permits. The treated effluent is discharged into a local watercourse that ultimately drains into the Arkansas River basin, contributing to the Mississippi River watershed. The plant's operations help protect downstream aquatic habitats and maintain water quality in the semi-arid High Plains region, where water resources are particularly valuable for agriculture and ecosystems.

The plant discharges into a tributary of the Cimarron River, which flows into the Arkansas River and eventually the Mississippi River. This inland watershed supports diverse aquatic life and is an important water source for agriculture in the Oklahoma Panhandle. The plant's secondary treatment helps reduce nutrient loading and protect downstream water quality in this ecologically sensitive semi-arid region.