Mulhall WWT - Secondary Wastewater Treatment Plant in Mulhall, Oklahoma

Mulhall WWT is a municipal wastewater treatment facility located on South Main Street in Mulhall, Logan County, Oklahoma. The plant serves a small population of 239 residents, reflecting the rural character of the community. The facility provides secondary treatment, which is the standard level required by the US Clean Water Act for municipal plants of this scale. With a designed capacity of 113.56 cubic meters per day and an average discharge volume of 75.71 cubic meters per day, the plant operates well within its capacity. Treated effluent from Mulhall WWT is discharged to local streams that drain into the Cimarron River basin, part of the Arkansas-White-Red River system. This watershed supports agricultural activities and provides habitat for aquatic species in the Southern Plains region.

The plant discharges into tributaries of the Cimarron River, which flows into the Arkansas River and ultimately the Mississippi River. The local watershed is part of the Southern Plains ecoregion, characterized by prairie grasslands and agricultural land use. The receiving waters support fish and wildlife, and the plant's secondary treatment helps protect downstream water quality.