Cottage Grove, Oregon Water Quality Report
Water quality data for 8 water systems serving 11,519 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (5)
75
Jul 2, 2025
75
Jul 2, 2025
71
Jul 1, 2025
75
May 23, 2025
2E
Oct 17, 2024
Resolved Violations (495)
44
Sep 1, 2025 — Sep 30, 2025
31
Sep 1, 2025 — Sep 30, 2025
43
Sep 1, 2025 — Sep 30, 2025
44
Aug 1, 2025 — Aug 31, 2025
44
Aug 1, 2025 — Aug 31, 2025
+ 490 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, 0 contaminants were detected at various levels. Some residents may prefer additional filtration for peace of mind.
What contaminants are in Cottage Grove tap water?
0 contaminants have been detected in Cottage Grove's water supply across 8 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 82 active violations. See the violations section above for details.