Arlington Heights, Illinois Water Quality Report
Water quality data for 3 water systems serving 73,444 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (5)
72
Jul 1, 2025
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Resolved Violations (136)
03
Jan 1, 2024 — Dec 31, 2024
03
Jan 1, 2024 — Dec 31, 2024
03
Jan 1, 2024 — Dec 31, 2024
03
Jan 1, 2024 — Dec 31, 2024
03
Jan 1, 2024 — Dec 31, 2024
+ 131 more resolved violations
Frequently Asked Questions
Is Arlington Heights tap water safe to drink?
Arlington Heights'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 Arlington Heights tap water?
0 contaminants have been detected in Arlington Heights's water supply across 3 water systems. See the full contaminant table above for details.
How can I improve my water quality in Arlington Heights?
Install a water filter rated for the specific contaminants found in Arlington Heights's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Arlington Heights have any water quality violations?
Yes, Arlington Heights currently has 5 active violations. See the violations section above for details.