Yorkville, Illinois Water Quality Report
Water quality data for 4 water systems serving 23,317 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| lithium | 49.5 | No federal limit | 10.0 ug/L(EPA/USGS HBSL) | 495% | Above guideline |
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Compliance & Violations
Active Violations (2)
4H
Jul 2, 2025
4H
Jul 2, 2025
Resolved Violations (498)
03
Jul 1, 2022 — Sep 30, 2022
03
Jul 1, 2022 — Sep 30, 2022
03
Jan 1, 2022 — Dec 31, 2022
03
Jan 1, 2022 — Dec 31, 2022
03
Jan 1, 2022 — Dec 31, 2022
+ 493 more resolved violations
Frequently Asked Questions
Is Yorkville tap water safe to drink?
Yorkville'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 Yorkville tap water?
1 contaminants have been detected in Yorkville's water supply across 4 water systems. See the full contaminant table above for details.
How can I improve my water quality in Yorkville?
Install a water filter rated for the specific contaminants found in Yorkville's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Yorkville have any water quality violations?
Yes, Yorkville currently has 62 active violations. See the violations section above for details.