Mount Vernon, Washington Water Quality Report
Water quality data for 57 water systems serving 149,029 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| PFBA | 0.021 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
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Compliance & Violations
Active Violations (16)
52
Jul 1, 2025
52
Jan 1, 2025
52
Jul 1, 2024
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Resolved Violations (857)
02
Jul 1, 2025 — Sep 30, 2025
02
Jul 1, 2025 — Sep 30, 2025
71
Jul 1, 2025
03
Jul 1, 2025 — Sep 30, 2025
02
Jul 1, 2025 — Sep 30, 2025
+ 852 more resolved violations
Frequently Asked Questions
Is Mount Vernon tap water safe to drink?
Mount Vernon's water meets all EPA maximum contaminant levels. However, 1 contaminants were detected at various levels. Some residents may prefer additional filtration for peace of mind.
What contaminants are in Mount Vernon tap water?
1 contaminants have been detected in Mount Vernon's water supply across 57 water systems. See the full contaminant table above for details.
How can I improve my water quality in Mount Vernon?
Install a water filter rated for the specific contaminants found in Mount Vernon's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Mount Vernon have any water quality violations?
Yes, Mount Vernon currently has 98 active violations. See the violations section above for details.