Is Rock Falls, Illinois tap water safe?
2 water systems report serving Rock Falls. Your water depends on which one serves your address. Check your bill if unsure.
B
Rock Falls
Serves 8,620 people · Groundwater · Full report →
No health-based violations in the last 5 years; 5 monitoring/reporting violations; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
B
Riverside MHP, LLC
Serves 120 people · Groundwater · Full report →
No health-based violations in the last 5 years; 6 monitoring/reporting violations; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).