Vandalia, Illinois Water Quality Report
Water quality data for 3 water systems serving 9,117 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (44)
4H
Jul 2, 2025
4H
Jul 2, 2025
52
Jul 1, 2025
52
Jul 1, 2025
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Resolved Violations (193)
02
Jul 1, 2024 — Sep 30, 2024
02
Jul 1, 2024 — Sep 30, 2024
02
Jul 1, 2024 — Sep 30, 2024
02
Jul 1, 2024 — Sep 30, 2024
02
Jul 1, 2024 — Sep 30, 2024
+ 188 more resolved violations
Frequently Asked Questions
Is Vandalia tap water safe to drink?
Vandalia'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 Vandalia tap water?
0 contaminants have been detected in Vandalia's water supply across 3 water systems. See the full contaminant table above for details.
How can I improve my water quality in Vandalia?
Install a water filter rated for the specific contaminants found in Vandalia's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Vandalia have any water quality violations?
Yes, Vandalia currently has 44 active violations. See the violations section above for details.