Ulm WWTP - Advanced Wastewater Treatment in Prairie County, Arkansas

Ulm WWTP is a wastewater treatment facility located in Prairie County, Arkansas, United States. It serves a small population of 170 residents, reflecting its role in a rural community. The plant is situated inland, away from coastal zones, and operates under the regulatory framework of the US Clean Water Act. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. Its designed capacity is 170.34 volume units, with a current discharge volume of 45.43 volume units, indicating ample capacity for future growth. As a small facility, it is subject to state-level NPDES permits that ensure compliance with water quality standards. The treated effluent is discharged into local waterways that drain into the Arkansas River basin, ultimately reaching the Mississippi River and the Gulf of Mexico. The plant plays a key role in protecting downstream aquatic ecosystems by reducing pollutant loads from this rural area.

The plant discharges into local streams that flow into the Arkansas River, a major tributary of the Mississippi River. The Arkansas River supports diverse aquatic life and provides habitat for migratory birds. The downstream environment includes the Mississippi River Delta and the Gulf of Mexico, where nutrient pollution can contribute to hypoxic zones. Advanced treatment at this plant helps mitigate such impacts.