Umatilla, Oregon Water Quality Report
Water quality data for 2 water systems serving 8,326 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| lithium | 33.2 | No federal limit | 10.0 ug/L(EPA/USGS HBSL) | 332% | Above guideline |
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Compliance & Violations
Active Violations (11)
Violation
Unknown
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Unknown
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Resolved Violations (348)
34
Aug 16, 2025
71
Jul 1, 2025
71
Jul 1, 2025
3A
Feb 1, 2025 — Feb 28, 2025
3A
Feb 1, 2025 — Feb 28, 2025
+ 343 more resolved violations
Frequently Asked Questions
Is Umatilla tap water safe to drink?
Umatilla'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 Umatilla tap water?
1 contaminants have been detected in Umatilla's water supply across 2 water systems. See the full contaminant table above for details.
How can I improve my water quality in Umatilla?
Install a water filter rated for the specific contaminants found in Umatilla's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Umatilla have any water quality violations?
Yes, Umatilla currently has 11 active violations. See the violations section above for details.