Friday Harbor, Washington Water Quality Report
Water quality data for 18 water systems serving 6,649 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Resolved Violations (500)
03
Jul 1, 2025 — Sep 30, 2025
03
Jul 1, 2025 — Sep 30, 2025
03
Jul 1, 2025 — Sep 30, 2025
03
Jul 1, 2025 — Sep 30, 2025
03
Jul 1, 2025 — Sep 30, 2025
+ 495 more resolved violations
Frequently Asked Questions
Is Friday Harbor tap water safe to drink?
Friday Harbor'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 Friday Harbor tap water?
0 contaminants have been detected in Friday Harbor's water supply across 18 water systems. See the full contaminant table above for details.
How can I improve my water quality in Friday Harbor?
Install a water filter rated for the specific contaminants found in Friday Harbor's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Friday Harbor have any water quality violations?
Yes, Friday Harbor currently has 38 active violations. See the violations section above for details.