Centralia, Illinois Water Quality Report
Water quality data for 13 water systems serving 30,242 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (94)
52
Oct 1, 2023
52
Oct 1, 2023
52
Oct 1, 2023
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Resolved Violations (172)
71
Jul 1, 2025
72
Jul 1, 2025
72
Jul 1, 2025
71
Jul 1, 2025
27
Oct 1, 2024 — Dec 31, 2024
+ 167 more resolved violations
Frequently Asked Questions
Is Centralia tap water safe to drink?
Centralia's water meets all EPA maximum contaminant levels. However, 0 contaminants were detected at various levels. Some residents may prefer additional filtration for peace of mind.
What contaminants are in Centralia tap water?
0 contaminants have been detected in Centralia's water supply across 13 water systems. See the full contaminant table above for details.
How can I improve my water quality in Centralia?
Install a water filter rated for the specific contaminants found in Centralia's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Centralia have any water quality violations?
Yes, Centralia currently has 94 active violations. See the violations section above for details.