Is Saint Marys, Iowa tap water safe?
1 water system report serving Saint Marys. Your water depends on which one serves your address. Check your bill if unsure.
A
Saint Marys Water Corporation
Serves 121 people · Surface water · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).