Thief River Falls, Minnesota Water Quality Report
Water quality data for 2 water systems serving 8,751 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| PFBA | 0.012 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
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Compliance & Violations
Active Violations (32)
4H
Jul 2, 2025
4H
Jul 2, 2025
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Resolved Violations (211)
44
Jan 1, 2025 — Jan 31, 2025
44
Jan 1, 2025 — Jan 31, 2025
44
Jan 1, 2025 — Jan 31, 2025
3A
Oct 1, 2024 — Dec 31, 2024
3A
Oct 1, 2024 — Dec 31, 2024
+ 206 more resolved violations
Frequently Asked Questions
Is Thief River Falls tap water safe to drink?
Thief River Falls'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 Thief River Falls tap water?
1 contaminants have been detected in Thief River Falls's water supply across 2 water systems. See the full contaminant table above for details.
How can I improve my water quality in Thief River Falls?
Install a water filter rated for the specific contaminants found in Thief River 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 Thief River Falls have any water quality violations?
Yes, Thief River Falls currently has 32 active violations. See the violations section above for details.