PEOTONE STP Wastewater Treatment Plant, Will County, Illinois

PEOTONE STP is a wastewater treatment plant located in Will County, Illinois, United States. It serves a population of approximately 2,822 residents, classifying it as a small-scale municipal facility. The plant is situated in a rural area near the village of Peotone, about 50 miles south of Chicago. As a US-based facility, PEOTONE STP operates under the Clean Water Act, which requires National Pollutant Discharge Elimination System (NPDES) permits for all point source discharges. For small agglomerations like this, secondary treatment is typically mandated to meet water quality standards. Regulatory compliance ensures appropriate treatment for the community served. The plant discharges treated effluent into local waterways that ultimately drain into the Mississippi River Basin. The receiving water body is likely a nearby stream or creek that flows into the Kankakee River, a tributary of the Illinois River. This watershed supports diverse aquatic life and provides important habitat for fish and wildlife in northeastern Illinois.

PEOTONE STP discharges into a local waterway within the Kankakee River watershed, which flows into the Illinois River and eventually the Mississippi River. The downstream environment includes agricultural and natural areas that rely on clean water for ecosystem health. The plant's discharge contributes to baseflow in local streams, supporting aquatic species such as fish and macroinvertebrates.