Preston, Minnesota Water Quality Report
Water quality data for 2 water systems serving 1,372 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (16)
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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Resolved Violations (83)
4H
Jul 2, 2025
4H
Jul 2, 2025
3A
Feb 1, 2025 — Feb 28, 2025
3A
Feb 1, 2025 — Feb 28, 2025
3A
Feb 1, 2025 — Feb 28, 2025
+ 78 more resolved violations
Frequently Asked Questions
Is Preston tap water safe to drink?
Preston'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 Preston tap water?
0 contaminants have been detected in Preston's water supply across 2 water systems. See the full contaminant table above for details.
How can I improve my water quality in Preston?
Install a water filter rated for the specific contaminants found in Preston's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Preston have any water quality violations?
Yes, Preston currently has 16 active violations. See the violations section above for details.