Arlington, Washington Water Quality Report
Water quality data for 40 water systems serving 24,990 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| PFHxS | 0.005 | 0.010 ug/L | 0.001 ug/L(EWG) | 49% | Within limit |
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 (1)
52
Jan 1, 2022
Resolved Violations (499)
71
Jul 1, 2025
3A
Oct 1, 2024 — Oct 31, 2024
71
Jul 1, 2024
71
Jul 1, 2024
3A
Apr 1, 2024 — Apr 30, 2024
+ 494 more resolved violations
Frequently Asked Questions
Is Arlington tap water safe to drink?
Arlington'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 Arlington tap water?
1 contaminants have been detected in Arlington's water supply across 40 water systems. See the full contaminant table above for details.
How can I improve my water quality in Arlington?
Install a water filter rated for the specific contaminants found in Arlington's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Arlington have any water quality violations?
Yes, Arlington currently has 75 active violations. See the violations section above for details.