Is Crest Hill, Illinois tap water safe?
1 water system report serving Crest Hill. Your water depends on which one serves your address. Check your bill if unsure.
D
Crest Hill
Serves 20,223 people · Groundwater · Full report →
1 health-based violation in the last 5 years; 30 monitoring/reporting violations; 3 not yet resolved; PFOA/PFOS average above the 4 ppt federal limit: PFOA; Other PFAS above 2024 limits (rule proposed for repeal): PFHxS, Hazard Index; Lead 90th percentile below the action level (2025).