Is Thomson, Illinois tap water safe?
2 water systems report serving Thomson. Your water depends on which one serves your address. Check your bill if unsure.
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Thomson Maximum Security Center
Serves 2,166 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file.
A
Thomson
Serves 600 people · Groundwater · Full report →
No health-based violations in the last 5 years; 3 monitoring/reporting violations; 1 not yet resolved; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2024).