Milwaukee, Wisconsin Water Quality Report
Water quality data for 21 water systems serving 678,542 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (26)
4H
Jul 2, 2025
4H
Jul 2, 2025
4H
Jul 2, 2025
4H
Jul 2, 2025
4H
Jul 2, 2025
75
Jul 1, 2025
75
Mar 11, 2025
57
Jan 1, 2025
65
Jan 1, 2025
75
Oct 17, 2024
75
Oct 17, 2024
75
Oct 17, 2024
75
Oct 17, 2024
2E
Oct 17, 2024
75
Oct 17, 2024
75
Oct 17, 2024
75
Oct 17, 2024
2E
Oct 17, 2024
2E
Oct 17, 2024
75
Oct 1, 2024
56
Jul 1, 2024
52
Jun 1, 2024
52
Jun 1, 2024
57
Oct 1, 2021
75
Jan 1, 2013
75
Jan 1, 2013
Resolved Violations (474)
3A
Sep 1, 2025 — Sep 30, 2025
66
Jan 1, 2025
66
Jan 1, 2025
3A
Jan 1, 2025 — Jan 31, 2025
66
Jan 1, 2025
+ 469 more resolved violations
Frequently Asked Questions
Is Milwaukee tap water safe to drink?
Milwaukee'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 Milwaukee tap water?
0 contaminants have been detected in Milwaukee's water supply across 21 water systems. See the full contaminant table above for details.
How can I improve my water quality in Milwaukee?
Install a water filter rated for the specific contaminants found in Milwaukee's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Milwaukee have any water quality violations?
Yes, Milwaukee currently has 99 active violations. See the violations section above for details.