Columbia Falls, Montana Water Quality Report
Water quality data for 28 water systems serving 8,805 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| PFOS | 0.004 | 0.004 ug/L | 0.300 ug/L(EWG) | 103% | Above 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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Connect with a certified water treatment professional in Columbia Falls, Montana.
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Compliance & Violations
Active Violations (27)
52
Oct 1, 2025
52
Oct 1, 2025
52
Oct 1, 2025
52
Oct 1, 2025
72
Oct 1, 2023
72
Oct 1, 2014
72
Oct 1, 2014
72
Oct 1, 2014
72
Oct 1, 2014
72
Oct 1, 2014
72
Oct 1, 2014
72
Oct 1, 2014
71
Jul 1, 2014
71
Jul 1, 2014
71
Jul 1, 2014
71
Jul 1, 2014
71
Jul 1, 2014
71
Jul 1, 2014
71
Jul 1, 2014
72
Oct 1, 2013
72
Oct 1, 2013
72
Oct 1, 2013
72
Oct 1, 2013
71
Jul 1, 2013
71
Jul 1, 2013
71
Jul 1, 2013
71
Jul 1, 2013
Resolved Violations (473)
34
Dec 4, 2025
34
Dec 4, 2025
34
Dec 4, 2025
34
Oct 8, 2025
34
Oct 8, 2025
+ 468 more resolved violations
Frequently Asked Questions
Is Columbia Falls tap water safe to drink?
Columbia Falls's water has 1 contaminant detected above EPA limits. While the water is treated, residents may want to consider additional filtration.
What contaminants are in Columbia Falls tap water?
1 contaminants have been detected in Columbia Falls's water supply across 28 water systems. See the full contaminant table above for details.
How can I improve my water quality in Columbia Falls?
Install a water filter rated for the specific contaminants found in Columbia Falls's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Columbia Falls have any water quality violations?
Yes, Columbia Falls currently has 84 active violations. See the violations section above for details.