Cottage Grove, Minnesota Water Quality Report
Water quality data for 2 water systems serving 39,762 people.
Water Source
Detected Contaminants
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Compliance & Violations
Active Violations (13)
Violation
Unknown
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Resolved Violations (48)
66
Jan 1, 2021
66
Jan 1, 2021
66
Jan 1, 2018 — May 10, 2018
66
Jan 1, 2018 — May 10, 2018
66
Jan 1, 2018 — May 10, 2018
+ 43 more resolved violations
Frequently Asked Questions
Is Cottage Grove tap water safe to drink?
Cottage Grove's water meets all EPA maximum contaminant levels. However, 2 contaminants were detected at various levels. Some residents may prefer additional filtration for peace of mind.
What contaminants are in Cottage Grove tap water?
2 contaminants have been detected in Cottage Grove's water supply across 2 water systems. See the full contaminant table above for details.
How can I improve my water quality in Cottage Grove?
Install a water filter rated for the specific contaminants found in Cottage Grove's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Cottage Grove have any water quality violations?
Yes, Cottage Grove currently has 13 active violations. See the violations section above for details.