Saint Johns, Arizona Water Quality Report
Water quality data for 1 water system serving 3,500 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| lithium | 16.0 | No federal limit | 10.0 ug/L(EPA/USGS HBSL) | 160% | Above guideline |
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Compliance & Violations
Active Violations (26)
71
Jul 1, 2025
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Resolved Violations (237)
03
Jul 1, 2025 — Sep 30, 2025
27
Jan 1, 2025 — Dec 31, 2025
27
Jan 1, 2025 — Dec 31, 2025
03
Oct 1, 2023 — Dec 31, 2023
03
Oct 1, 2023 — Dec 31, 2023
+ 232 more resolved violations
Frequently Asked Questions
Is Saint Johns tap water safe to drink?
Saint Johns'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 Saint Johns tap water?
1 contaminants have been detected in Saint Johns's water supply across 1 water system. See the full contaminant table above for details.
How can I improve my water quality in Saint Johns?
Install a water filter rated for the specific contaminants found in Saint Johns's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Saint Johns have any water quality violations?
Yes, Saint Johns currently has 26 active violations. See the violations section above for details.