Ada, Ohio Water Quality Report
Water quality data for 4 water systems serving 5,548 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| lithium | 45.8 | No federal limit | 10.0 ug/L(EPA/USGS HBSL) | 458% | Above guideline |
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Compliance & Violations
Active Violations (5)
4H
Jul 2, 2025
4H
Jul 2, 2025
71
Jul 1, 2025
71
Jul 1, 2025
72
Jan 14, 2020
Resolved Violations (495)
20
Oct 29, 2024
20
Oct 29, 2024
20
Oct 29, 2024
3A
Sep 1, 2024 — Sep 30, 2024
3A
Sep 1, 2024 — Sep 30, 2024
+ 490 more resolved violations
Frequently Asked Questions
Is Ada tap water safe to drink?
Ada'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 Ada tap water?
1 contaminants have been detected in Ada's water supply across 4 water systems. See the full contaminant table above for details.
How can I improve my water quality in Ada?
Install a water filter rated for the specific contaminants found in Ada's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Ada have any water quality violations?
Yes, Ada currently has 17 active violations. See the violations section above for details.