Colville, Washington Water Quality Report
Water quality data for 7 water systems serving 5,724 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (5)
52
Jan 1, 2022
52
Jan 1, 2022
52
Jan 1, 2021
52
Jan 1, 2021
52
Jan 1, 2020
Resolved Violations (495)
03
Jul 1, 2025 — Sep 30, 2025
71
Jul 1, 2025
03
Apr 1, 2025 — Jun 30, 2025
03
Jan 1, 2025 — Mar 31, 2025
71
Jul 1, 2024
+ 490 more resolved violations
Frequently Asked Questions
Is Colville tap water safe to drink?
Colville'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 Colville tap water?
0 contaminants have been detected in Colville's water supply across 7 water systems. See the full contaminant table above for details.
How can I improve my water quality in Colville?
Install a water filter rated for the specific contaminants found in Colville's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Colville have any water quality violations?
Yes, Colville currently has 22 active violations. See the violations section above for details.