Arnold, Missouri Water Quality Report
Water quality data for 5 water systems serving 38,712 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (8)
66
Jan 1, 2025
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Resolved Violations (6)
27
Jan 1, 2022 — Dec 31, 2024
27
Jan 1, 2022 — Dec 31, 2024
27
Jan 1, 2022 — Dec 31, 2024
27
Jan 1, 2022 — Dec 31, 2024
72
Jul 1, 2006
+ 1 more resolved violations
Frequently Asked Questions
Is Arnold tap water safe to drink?
Arnold'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 Arnold tap water?
0 contaminants have been detected in Arnold's water supply across 5 water systems. See the full contaminant table above for details.
How can I improve my water quality in Arnold?
Install a water filter rated for the specific contaminants found in Arnold's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Arnold have any water quality violations?
Yes, Arnold currently has 8 active violations. See the violations section above for details.