Shelby, Montana Water Quality Report
Water quality data for 3 water systems serving 4,120 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| lithium | 12.0 | No federal limit | 10.0 ug/L(EPA/USGS HBSL) | 120% | Above guideline |
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Compliance & Violations
Active Violations (4)
52
Oct 1, 2025
52
Oct 1, 2025
52
Oct 1, 2024
71
Jul 1, 2024
Resolved Violations (496)
66
Oct 1, 2023
66
Oct 1, 2023
71
Jul 1, 2023
71
Jul 1, 2023
52
Jul 1, 2022
+ 491 more resolved violations
Frequently Asked Questions
Is Shelby tap water safe to drink?
Shelby'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 Shelby tap water?
1 contaminants have been detected in Shelby's water supply across 3 water systems. See the full contaminant table above for details.
How can I improve my water quality in Shelby?
Install a water filter rated for the specific contaminants found in Shelby's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Shelby have any water quality violations?
Yes, Shelby currently has 6 active violations. See the violations section above for details.