Mokena, Illinois Water Quality Report
Water quality data for 1 water system serving 19,887 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (18)
72
Jul 1, 2025
Violation
Unknown
Violation
Unknown
Violation
Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
Resolved Violations (33)
27
Jul 1, 2024 — Sep 30, 2024
27
Jul 1, 2024 — Sep 30, 2024
27
Jul 1, 2024 — Sep 30, 2024
27
Jul 1, 2024 — Sep 30, 2024
27
Jul 1, 2024 — Sep 30, 2024
+ 28 more resolved violations
Frequently Asked Questions
Is Mokena tap water safe to drink?
Mokena'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 Mokena tap water?
0 contaminants have been detected in Mokena's water supply across 1 water system. See the full contaminant table above for details.
How can I improve my water quality in Mokena?
Install a water filter rated for the specific contaminants found in Mokena's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Mokena have any water quality violations?
Yes, Mokena currently has 18 active violations. See the violations section above for details.