Mascoutah, Illinois Water Quality Report
Water quality data for 2 water systems serving 9,144 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (38)
72
Jul 1, 2025
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Resolved Violations (38)
41
Jun 1, 2014 — Jun 30, 2014
41
Jun 1, 2014 — Jun 30, 2014
41
Jun 1, 2014 — Jun 30, 2014
41
Jun 1, 2014 — Jun 30, 2014
41
Jun 1, 2014 — Jun 30, 2014
+ 33 more resolved violations
Frequently Asked Questions
Is Mascoutah tap water safe to drink?
Mascoutah'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 Mascoutah tap water?
0 contaminants have been detected in Mascoutah's water supply across 2 water systems. See the full contaminant table above for details.
How can I improve my water quality in Mascoutah?
Install a water filter rated for the specific contaminants found in Mascoutah's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Mascoutah have any water quality violations?
Yes, Mascoutah currently has 38 active violations. See the violations section above for details.