Odell WWTP - Secondary Wastewater Treatment Plant in Odell, Illinois

Odell WWTP is a municipal wastewater treatment plant located in Odell, Illinois, United States. The facility serves a small community of about 1,188 people, providing essential wastewater treatment services to the local area. As a secondary treatment plant, it meets the standard requirements for organic matter and suspended solids removal before discharge. The plant operates under the regulatory framework of the US Clean Water Act, which mandates National Pollutant Discharge Elimination System (NPDES) permits for all point source discharges. Facilities of this scale are typically permitted by the Illinois Environmental Protection Agency. The plant's designed capacity of 454.25 m³/day and current discharge volume of 378.54 m³/day indicate it is operating below its full capacity. The treated effluent is discharged into local waterways that ultimately drain into the Illinois River basin, a major tributary of the Mississippi River. The Mississippi River system supports diverse aquatic life and provides drinking water for millions downstream. The plant's secondary treatment helps protect these water resources from nutrient pollution and pathogens.

The plant discharges into local streams that flow into the Illinois River, which then joins the Mississippi River. The Mississippi River basin is one of the largest watersheds in North America, supporting extensive aquatic biodiversity and providing critical habitat for fish and migratory birds. The Illinois River itself is a key ecological corridor, and maintaining water quality through effective wastewater treatment is essential for the health of this downstream ecosystem.