Long Grove, Illinois Water Quality Report
Water quality data for 5 water systems serving 791 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (15)
4H
Jul 2, 2025
4H
Jul 2, 2025
72
Jul 1, 2025
4G
Oct 17, 2024
4G
Oct 17, 2024
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Resolved Violations (126)
72
Jul 1, 2024
72
Jul 1, 2024
03
Jan 1, 2024 — Dec 31, 2024
03
Jan 1, 2024 — Dec 31, 2024
03
Jan 1, 2024 — Dec 31, 2024
+ 121 more resolved violations
Frequently Asked Questions
Is Long Grove tap water safe to drink?
Long Grove'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 Long Grove tap water?
0 contaminants have been detected in Long Grove's water supply across 5 water systems. See the full contaminant table above for details.
How can I improve my water quality in Long Grove?
Install a water filter rated for the specific contaminants found in Long Grove's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Long Grove have any water quality violations?
Yes, Long Grove currently has 15 active violations. See the violations section above for details.