Is Waterloo, Iowa tap water safe?
1 water system report serving Waterloo. Your water depends on which one serves your address. Check your bill if unsure.
B
Waterloo Water Works
Serves 69,504 people · Groundwater · Full report →
No health-based violations in the last 5 years; Other PFAS above 2024 limits (rule proposed for repeal): PFHxS, Hazard Index; Lead 90th percentile below the action level (2025).