Potosi, Missouri Water Quality Report
Water quality data for 3 water systems serving 3,930 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
Get a Free Water Quality Consultation
Connect with a certified water treatment professional in Potosi, Missouri.
Get Water Quality Alerts
Be the first to know when water quality changes in Potosi.
Compliance & Violations
Active Violations (1)
72
Jul 1, 2025
Resolved Violations (499)
75
Apr 27, 2024
3A
Mar 1, 2023 — Mar 31, 2023
3A
Mar 1, 2023 — Mar 31, 2023
3A
Mar 1, 2023 — Mar 31, 2023
3A
Mar 1, 2023 — Mar 31, 2023
+ 494 more resolved violations
Frequently Asked Questions
Is Potosi tap water safe to drink?
Potosi'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 Potosi tap water?
0 contaminants have been detected in Potosi's water supply across 3 water systems. See the full contaminant table above for details.
How can I improve my water quality in Potosi?
Install a water filter rated for the specific contaminants found in Potosi's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Potosi have any water quality violations?
Yes, Potosi currently has 22 active violations. See the violations section above for details.