Harlowton, Montana Water Quality Report
Water quality data for 3 water systems serving 1,246 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (7)
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Resolved Violations (401)
71
Jul 1, 2025
71
Jul 1, 2025
66
Dec 30, 2024
66
Dec 30, 2024
72
Oct 1, 2024
+ 396 more resolved violations
Frequently Asked Questions
Is Harlowton tap water safe to drink?
Harlowton's water meets all EPA maximum contaminant levels. However, 0 contaminants were detected at various levels. Some residents may prefer additional filtration for peace of mind.
What contaminants are in Harlowton tap water?
0 contaminants have been detected in Harlowton's water supply across 3 water systems. See the full contaminant table above for details.
How can I improve my water quality in Harlowton?
Install a water filter rated for the specific contaminants found in Harlowton's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Harlowton have any water quality violations?
Yes, Harlowton currently has 7 active violations. See the violations section above for details.