Bothell, Washington Water Quality Report
Water quality data for 4 water systems serving 90,732 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (9)
72
Oct 1, 2024
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Resolved Violations (397)
65
Sep 11, 2025
75
Apr 10, 2025
75
Apr 10, 2025
2E
Oct 17, 2024
2E
Oct 17, 2024
+ 392 more resolved violations
Frequently Asked Questions
Is Bothell tap water safe to drink?
Bothell'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 Bothell tap water?
0 contaminants have been detected in Bothell's water supply across 4 water systems. See the full contaminant table above for details.
How can I improve my water quality in Bothell?
Install a water filter rated for the specific contaminants found in Bothell's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Bothell have any water quality violations?
Yes, Bothell currently has 9 active violations. See the violations section above for details.