Vancouver, Washington Water Quality Report
Water quality data for 18 water systems serving 496,390 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| PFBS | 0.008 | No federal limit | 2000.0 ug/L(EPA Health Advisory) | 0% | Below guideline |
| PFHpA | 0.003 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFHxA | 0.007 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFHxS | 0.007 | 0.010 ug/L | 0.001 ug/L(EWG) | 66% | Within limit |
| PFOA | 0.011 | 0.004 ug/L | 0.090 ug/L(EWG) | 288% | Above limit |
| PFOS | 0.019 | 0.004 ug/L | 0.300 ug/L(EWG) | 465% | Above limit |
| PFPeA | 0.007 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
Recommended Water Filters
Based on the contaminants detected in your water supply, these filtration systems are recommended:
Reverse Osmosis (RO)
Reverse osmosis systems remove up to 99% of PFAS compounds. Recommended for homes with detected PFAS.
Up to 99% PFAS removal
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Compliance & Violations
Active Violations (2)
72
Oct 1, 2025
71
Jul 1, 2025
Resolved Violations (498)
34
Sep 14, 2025
34
Sep 1, 2025
3A
Sep 1, 2025 — Sep 30, 2025
3A
Aug 1, 2025 — Aug 31, 2025
02
Jul 1, 2025 — Sep 30, 2025
+ 493 more resolved violations
Frequently Asked Questions
Is Vancouver tap water safe to drink?
Vancouver's water has 2 contaminants detected above EPA limits. While the water is treated, residents may want to consider additional filtration.
What contaminants are in Vancouver tap water?
7 contaminants have been detected in Vancouver's water supply across 18 water systems. See the full contaminant table above for details.
How can I improve my water quality in Vancouver?
Install a water filter rated for the specific contaminants found in Vancouver's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Vancouver have any water quality violations?
Yes, Vancouver currently has 28 active violations. See the violations section above for details.