Cullison WWTP - Secondary Wastewater Treatment in Cullison, Kansas

Cullison WWTP is a municipal wastewater treatment plant located in Cullison, Kansas, a small community in Pratt County. The facility serves a population of 109 and operates under the regulatory framework of the United States Clean Water Act, which requires secondary treatment for municipal discharges. The plant has a designed capacity of 68.14 thousand gallons per day and currently treats an average daily flow of 37.85 thousand gallons per day. As a secondary treatment facility, it uses biological processes to remove organic matter and suspended solids, meeting national effluent standards. The treated effluent is discharged into local streams that drain into the Arkansas River basin, ultimately contributing to the Mississippi River watershed. This small plant plays a vital role in protecting downstream water quality and aquatic habitats in the Great Plains region.

Cullison WWTP discharges into local waterways that flow into the Arkansas River, a major tributary of the Mississippi River. The surrounding region is part of the Great Plains, characterized by agricultural land use and semi-arid climate. The plant's secondary treatment helps reduce nutrient and organic loads, protecting downstream aquatic ecosystems and supporting water quality for irrigation and wildlife.