Warrenton, Missouri Water Quality Report
Water quality data for 7 water systems serving 12,603 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| lithium | 77.6 | No federal limit | 10.0 ug/L(EPA/USGS HBSL) | 776% | Above guideline |
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Compliance & Violations
Active Violations (39)
72
Jul 1, 2025
75
Oct 9, 2024
75
Jan 8, 2024
66
Dec 30, 2023
52
Oct 1, 2020
52
Oct 1, 2020
52
Oct 1, 2020
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Resolved Violations (335)
3A
Aug 1, 2025 — Aug 31, 2025
3A
Aug 1, 2025 — Aug 31, 2025
3A
Aug 1, 2025 — Aug 31, 2025
4G
Oct 17, 2024
4G
Oct 17, 2024
+ 330 more resolved violations
Frequently Asked Questions
Is Warrenton tap water safe to drink?
Warrenton'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 Warrenton tap water?
1 contaminants have been detected in Warrenton's water supply across 7 water systems. See the full contaminant table above for details.
How can I improve my water quality in Warrenton?
Install a water filter rated for the specific contaminants found in Warrenton's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Warrenton have any water quality violations?
Yes, Warrenton currently has 39 active violations. See the violations section above for details.