North Chicago, Illinois Water Quality Report
Water quality data for 1 water system serving 16,813 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (27)
52
Jul 1, 2025
72
Jul 1, 2025
52
Jul 1, 2025
52
Jul 1, 2025
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
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Unknown
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Unknown
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Unknown
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Unknown
Resolved Violations (127)
75
Jun 20, 2024
75
Jun 20, 2024
02
Apr 1, 2024 — Jun 30, 2024
02
Apr 1, 2024 — Jun 30, 2024
02
Apr 1, 2024 — Jun 30, 2024
+ 122 more resolved violations
Frequently Asked Questions
Is North Chicago tap water safe to drink?
North Chicago'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 North Chicago tap water?
0 contaminants have been detected in North Chicago's water supply across 1 water system. See the full contaminant table above for details.
How can I improve my water quality in North Chicago?
Install a water filter rated for the specific contaminants found in North Chicago's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does North Chicago have any water quality violations?
Yes, North Chicago currently has 27 active violations. See the violations section above for details.