Is Antioch, Illinois tap water safe?
2 water systems report serving Antioch. Your water depends on which one serves your address. Check your bill if unsure.
A
Antioch
Serves 14,175 people · Groundwater · Full report →
No health-based violations in the last 5 years; 3 monitoring/reporting violations; 1 not yet resolved; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2026).
B
Bluff Lake Lodges, Inc.
Serves 24 people · Groundwater · Full report →
No health-based violations in the last 5 years; 21 monitoring/reporting violations; 3 not yet resolved; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).