Salt Creek SD WWTF - Villa Park, Illinois Wastewater Treatment Plant

Salt Creek SD WWTF is a municipal wastewater treatment facility located in Villa Park, DuPage County, Illinois. It serves a population of approximately 22,253 residents as part of the region's wastewater infrastructure. The plant is situated in the Chicago metropolitan area, an inland urban setting with combined sewer systems common in older communities. The plant operates under the US Clean Water Act, which requires secondary treatment for municipal facilities. The National Pollutant Discharge Elimination System (NPDES) permits, issued by the Illinois Environmental Protection Agency, govern discharge limits and monitoring. Designed capacity is 1.00 million gallons per day, indicating a medium-sized facility for this population tier. The plant discharges treated effluent to a local waterway that ultimately drains to the Mississippi River basin via the Illinois River system. This watershed supports diverse aquatic life and provides drinking water for downstream communities. Proper treatment is essential to protect water quality in the region's interconnected rivers and streams.

The plant's discharge enters the Salt Creek watershed, a tributary of the Des Plaines River, which flows into the Illinois River and eventually the Mississippi River. This inland basin supports a mix of urban and agricultural land uses, with the receiving waters providing habitat for fish and migratory birds. Effective wastewater treatment helps maintain dissolved oxygen levels and reduce nutrient loading in this ecologically sensitive river system.