Williston, Vermont Water Quality Report
Water quality data for 5 water systems serving 8,428 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (21)
71
Jul 1, 2002
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
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Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
Violation
Unknown
Resolved Violations (266)
27
Jul 1, 2025 — Sep 30, 2025
27
Jul 1, 2025 — Sep 30, 2025
71
Jul 1, 2024
71
Jul 1, 2024
71
Jul 1, 2024
+ 261 more resolved violations
Frequently Asked Questions
Is Williston tap water safe to drink?
Williston'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 Williston tap water?
0 contaminants have been detected in Williston's water supply across 5 water systems. See the full contaminant table above for details.
How can I improve my water quality in Williston?
Install a water filter rated for the specific contaminants found in Williston's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Williston have any water quality violations?
Yes, Williston currently has 21 active violations. See the violations section above for details.