Warrenton, Oregon Water Quality Report
Water quality data for 1 water system serving 9,100 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (3)
Violation
Unknown
Violation
Unknown
Violation
Unknown
Resolved Violations (134)
71
Jul 1, 2025
27
Oct 1, 2013 — Dec 31, 2013
27
Oct 1, 2013 — Dec 31, 2013
36
Jun 1, 2009 — Jun 30, 2009
38
Jun 1, 2009 — Jun 30, 2009
+ 129 more resolved violations
Frequently Asked Questions
Is Warrenton tap water safe to drink?
Warrenton'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 Warrenton tap water?
0 contaminants have been detected in Warrenton's water supply across 1 water system. See the full contaminant table above for details.
How can I improve my water quality in Warrenton?
Install a water filter rated for the specific contaminants found in Warrenton's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Warrenton have any water quality violations?
Yes, Warrenton currently has 3 active violations. See the violations section above for details.