Is South Wilmington, Illinois tap water safe?
1 water system report serving South Wilmington. Your water depends on which one serves your address. Check your bill if unsure.
C
South Wilmington
Serves 710 people · Groundwater · Full report →
1 health-based violation in the last 5 years; 12 monitoring/reporting violations; 2 not yet resolved; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2026).