Wood Dale South STP - Wastewater Treatment Plant in Wood Dale, Illinois

Wood Dale South STP is a municipal wastewater treatment facility located at 370 Brookhurst Lane in Wood Dale, Illinois, within DuPage County. The plant serves a population of approximately 7,500 residents, classifying it as a small to medium-sized facility in the Chicago metropolitan area. As a US-based plant, Wood Dale South STP operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Illinois Environmental Protection Agency. These permits set effluent limits to protect water quality. The plant's designed capacity is 1.00 million gallons per day, indicating it is sized for the community's needs. The treated effluent from the plant is discharged into local waterways that ultimately drain to the Mississippi River basin. This watershed supports diverse aquatic life and provides drinking water for downstream communities. The plant plays a key role in protecting the region's water resources from pollution.

The plant discharges into the Des Plaines River watershed, which flows into the Illinois River and then the Mississippi River. This river system supports a variety of fish and wildlife, including migratory birds and freshwater mussels. The downstream environment includes ecologically sensitive areas that benefit from the plant's pollution control efforts.