Janesville, Wisconsin Water Quality Report
Water quality data for 2 water systems serving 64,713 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (15)
75
Oct 17, 2024
66
Jan 1, 2013
66
Jan 1, 2013
66
Jan 1, 2013
66
Jan 1, 2013
75
Feb 1, 2010
75
Jan 1, 2010
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Resolved Violations (73)
2E
Oct 17, 2024
71
Jul 1, 2023
72
Jul 1, 2023
71
Jul 1, 2023
72
Jul 1, 2023
+ 68 more resolved violations
Frequently Asked Questions
Is Janesville tap water safe to drink?
Janesville'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 Janesville tap water?
0 contaminants have been detected in Janesville's water supply across 2 water systems. See the full contaminant table above for details.
How can I improve my water quality in Janesville?
Install a water filter rated for the specific contaminants found in Janesville's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Janesville have any water quality violations?
Yes, Janesville currently has 15 active violations. See the violations section above for details.