SUSANK WWTP - Secondary Treatment Plant in Susank, Kansas

SUSANK WWTP is a municipal wastewater treatment facility located in Susank, Kansas, a small community in Barton County. The plant serves a population of 54 and operates under the regulatory framework of the United States Clean Water Act, which governs wastewater discharges through the National Pollutant Discharge Elimination System (NPDES) permit program. The plant provides secondary treatment, a standard level required for most municipal facilities in the U.S. Its designed capacity is 34.07 million gallons, and it currently discharges approximately 18.93 million gallons annually. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The treated effluent is discharged into a local waterway, contributing to the Arkansas River basin. The plant plays a key role in protecting downstream water quality in the region, which supports agricultural and ecological systems in central Kansas.

The plant discharges into a tributary of the Arkansas River, which flows through Kansas into Oklahoma and eventually into the Mississippi River system. The local watershed is part of the Great Plains region, characterized by agricultural land use. The plant's secondary treatment helps reduce nutrient and organic pollutant loads, protecting aquatic life and downstream water quality in this semi-arid environment.