ROXBURY I D WWTP - Canton, Kansas Wastewater Treatment Plant

ROXBURY I D WWTP is a municipal wastewater treatment facility located in Canton, Kansas, within McPherson County. The plant serves a small population of 129 residents, reflecting its role in a rural community. As a secondary treatment plant, it provides biological treatment to reduce organic pollutants and suspended solids before discharge. The plant's designed capacity is 49.21 million gallons per year, with an actual discharge volume of 37.85 million gallons per year, indicating operational headroom. Under the U.S. Clean Water Act, facilities of this scale are typically regulated through the National Pollutant Discharge Elimination System (NPDES) permit program, administered by the Kansas Department of Health and Environment. Secondary treatment is the minimum standard for municipal wastewater plants in the United States. The treated effluent is discharged into a local water body, ultimately contributing to the Kansas River basin and the larger Mississippi River watershed. The plant's operation helps protect downstream water quality and supports aquatic life in the region's streams and rivers.

The plant discharges into a tributary of the Kansas River, which flows into the Missouri River and then the Mississippi River, eventually reaching the Gulf of Mexico. This watershed supports diverse aquatic species and is important for regional agriculture and recreation. The plant's secondary treatment reduces nutrient and organic loads, helping to mitigate eutrophication risks in downstream water bodies.