SPIRO MA WWT Wastewater Treatment Plant, LeFlore County, Oklahoma

SPIRO MA WWT is a municipal wastewater treatment facility located in LeFlore County, Oklahoma, United States. The plant serves a population of approximately 2,227 residents, classifying it as a small-scale treatment facility within the region. The plant employs secondary treatment, which is the standard biological treatment process required by the U.S. Clean Water Act for municipal wastewater. With a designed capacity of 1,816.99 units and an average daily discharge of 832.79 units, the facility operates well within its capacity, ensuring effective treatment of local wastewater. The treated effluent is discharged into a local waterway that ultimately drains into the Arkansas River basin, contributing to the Mississippi River watershed. This downstream connection highlights the plant's role in protecting water quality in a region that supports diverse aquatic life and agricultural activities.

The plant discharges into a tributary of the Arkansas River, which flows through Oklahoma and Arkansas before joining the Mississippi River. This watershed supports a variety of fish and wildlife, including species that rely on clean water for spawning and migration. The secondary treatment process helps reduce organic pollutants and nutrients, minimizing the risk of eutrophication in downstream water bodies.