Tonasket, Washington Water Quality Report
Water quality data for 35 water systems serving 7,047 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (1)
51
Jan 1, 2025
Resolved Violations (499)
01
Jul 1, 2025 — Sep 30, 2025
03
Jul 1, 2025 — Sep 30, 2025
3A
Jun 1, 2025 — Jun 30, 2025
3A
May 1, 2025 — May 31, 2025
3A
May 1, 2025 — May 31, 2025
+ 494 more resolved violations
Frequently Asked Questions
Is Tonasket tap water safe to drink?
Tonasket'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 Tonasket tap water?
0 contaminants have been detected in Tonasket's water supply across 35 water systems. See the full contaminant table above for details.
How can I improve my water quality in Tonasket?
Install a water filter rated for the specific contaminants found in Tonasket's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Tonasket have any water quality violations?
Yes, Tonasket currently has 68 active violations. See the violations section above for details.