St. Ignatius, Montana Water Quality Report
Water quality data for 2 water systems serving 765 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Resolved Violations (461)
31
Sep 1, 2025 — Sep 30, 2025
31
Sep 1, 2025 — Sep 30, 2025
31
Sep 1, 2025 — Sep 30, 2025
34
Jul 17, 2024
34
Jul 17, 2024
+ 456 more resolved violations
Frequently Asked Questions
Is St. Ignatius tap water safe to drink?
St. Ignatius'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 St. Ignatius tap water?
0 contaminants have been detected in St. Ignatius's water supply across 2 water systems. See the full contaminant table above for details.
How can I improve my water quality in St. Ignatius?
Install a water filter rated for the specific contaminants found in St. Ignatius's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.