Williams Bay, Wisconsin Water Quality Report
Water quality data for 1 water system serving 2,601 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (8)
75
Sep 11, 2025
65
Jul 1, 2025
51
Jan 1, 2025
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Resolved Violations (127)
53
Jan 1, 2025 — Jun 30, 2025
53
Jan 1, 2025 — Jun 30, 2025
72
Jul 1, 2021
72
Jul 1, 2021
71
Jul 1, 2021
+ 122 more resolved violations
Frequently Asked Questions
Is Williams Bay tap water safe to drink?
Williams Bay'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 Williams Bay tap water?
0 contaminants have been detected in Williams Bay's water supply across 1 water system. See the full contaminant table above for details.
How can I improve my water quality in Williams Bay?
Install a water filter rated for the specific contaminants found in Williams Bay's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Williams Bay have any water quality violations?
Yes, Williams Bay currently has 8 active violations. See the violations section above for details.