Cathlamet, Washington Water Quality Report
Water quality data for 4 water systems serving 3,606 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Resolved Violations (500)
36
Sep 1, 2025 — Sep 30, 2025
36
Sep 1, 2025 — Sep 30, 2025
71
Jul 1, 2025
71
Jul 1, 2024
71
Jul 1, 2023
+ 495 more resolved violations
Frequently Asked Questions
Is Cathlamet tap water safe to drink?
Cathlamet'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 Cathlamet tap water?
0 contaminants have been detected in Cathlamet's water supply across 4 water systems. See the full contaminant table above for details.
How can I improve my water quality in Cathlamet?
Install a water filter rated for the specific contaminants found in Cathlamet's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Cathlamet have any water quality violations?
Yes, Cathlamet currently has 8 active violations. See the violations section above for details.