HOXIE WWTP - Secondary Wastewater Treatment in Sheridan County, Kansas

HOXIE WWTP is a municipal wastewater treatment plant located in Sheridan County, Kansas, serving a population of approximately 1,153 residents. The facility operates under the regulatory framework of the United States Clean Water Act, which requires secondary treatment for municipal wastewater discharges. As a small-scale plant, it plays a vital role in protecting local water quality in the rural High Plains region. The plant provides secondary treatment, a standard biological process that removes organic matter and suspended solids. With a designed capacity of 541.31 thousand cubic meters per year and an actual discharge volume of 435.32 thousand cubic meters, the facility operates below its capacity, indicating adequate headroom for current demand. The plant is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Kansas Department of Health and Environment, ensuring compliance with federal water quality standards. The treated effluent from HOXIE WWTP is discharged into local waterways that drain into the Solomon River basin, part of the Kansas River watershed, which ultimately flows into the Missouri River and then the Mississippi River. This connection to the Gulf of Mexico underscores the plant's role in reducing nutrient loads that can contribute to downstream hypoxia. The surrounding area is predominantly agricultural, making effective wastewater treatment essential for protecting both groundwater and surface water resources.

HOXIE WWTP discharges into tributaries of the Solomon River, which flows into the Kansas River, then the Missouri River, and finally the Mississippi River to the Gulf of Mexico. The plant's location in the High Plains region, with its semi-arid climate and reliance on groundwater, makes proper treatment critical for preventing nitrate contamination of aquifers and protecting downstream aquatic ecosystems. The receiving waters support diverse fish and wildlife, and the plant's secondary treatment helps reduce organic and nutrient pollution that could otherwise harm these habitats.