ROZEL WWTP - Pawnee County, Kansas Wastewater Treatment Plant

ROZEL WWTP is a municipal wastewater treatment facility located in Pawnee County, Kansas, United States. The plant serves a small population of 164 residents, reflecting its role in a rural community. As a secondary treatment plant, it provides biological treatment to reduce organic matter and suspended solids before discharge. The plant has a designed capacity of 151.42 million gallons per year and currently treats a discharge volume of 68.14 million gallons annually. Under the U.S. Clean Water Act, such facilities operate under National Pollutant Discharge Elimination System (NPDES) permits, which set effluent limits to protect water quality. For small plants like ROZEL WWTP, secondary treatment is the standard requirement to meet federal regulations. The treated effluent is discharged into local waterways that ultimately drain into the Arkansas River basin, part of the Mississippi River watershed. This region supports agricultural activities and provides habitat for aquatic species. Proper treatment helps maintain water quality in downstream rivers and lakes, which are important for irrigation, recreation, and ecosystem health.

ROZEL WWTP discharges into tributaries of the Arkansas River, which flows through Kansas and Oklahoma before joining the Mississippi River. The Arkansas River basin supports diverse aquatic life and is a critical water source for agriculture in the Great Plains. The plant's secondary treatment helps reduce nutrient and organic pollution, protecting downstream water quality in a region where water resources are vital for both ecological and human uses.