Is Stonington, Illinois tap water safe?
2 water systems report serving Stonington. Your water depends on which one serves your address. Check your bill if unsure.
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Stonington
Serves 932 people · Groundwater · 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 (2024).
A
Sharpsburg and Neighboring Area Water Sy
Serves 868 people · Groundwater · 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).