Helena, Montana Water Quality Report
Water quality data for 40 water systems serving 39,697 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| lithium | 78.0 | No federal limit | 10.0 ug/L(EPA/USGS HBSL) | 780% | Above guideline |
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Compliance & Violations
Active Violations (3)
52
Oct 1, 2025
52
Oct 1, 2025
66
Dec 30, 2024
Resolved Violations (497)
2A
Oct 23, 2025
2A
Oct 23, 2025
2A
Oct 23, 2025
52
Oct 1, 2025
52
Oct 1, 2025
+ 492 more resolved violations
Frequently Asked Questions
Is Helena tap water safe to drink?
Helena'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 Helena tap water?
1 contaminants have been detected in Helena's water supply across 40 water systems. See the full contaminant table above for details.
How can I improve my water quality in Helena?
Install a water filter rated for the specific contaminants found in Helena's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Helena have any water quality violations?
Yes, Helena currently has 68 active violations. See the violations section above for details.