Montello, Wisconsin Water Quality Report
Water quality data for 1 water system serving 1,329 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (7)
4H
Jul 2, 2025
75
Oct 17, 2024
75
Oct 17, 2024
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Resolved Violations (28)
45
Apr 29, 2025
45
Apr 29, 2025
45
Apr 29, 2025
2E
Oct 17, 2024
4G
Oct 17, 2024
+ 23 more resolved violations
Frequently Asked Questions
Is Montello tap water safe to drink?
Montello'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 Montello tap water?
0 contaminants have been detected in Montello's water supply across 1 water system. See the full contaminant table above for details.
How can I improve my water quality in Montello?
Install a water filter rated for the specific contaminants found in Montello's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Montello have any water quality violations?
Yes, Montello currently has 7 active violations. See the violations section above for details.