Oak Forest, Illinois Water Quality Report
Water quality data for 1 water system serving 27,478 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| PFBA | 0.009 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
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Compliance & Violations
Active Violations (11)
4H
Jul 2, 2025
4H
Jul 2, 2025
72
Jul 1, 2025
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Resolved Violations (13)
66
Dec 30, 2020
66
Dec 30, 2020
71
Jul 1, 2019
71
Jul 1, 2019
71
Jul 1, 2016
+ 8 more resolved violations
Frequently Asked Questions
Is Oak Forest tap water safe to drink?
Oak Forest'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 Oak Forest tap water?
1 contaminants have been detected in Oak Forest's water supply across 1 water system. See the full contaminant table above for details.
How can I improve my water quality in Oak Forest?
Install a water filter rated for the specific contaminants found in Oak Forest's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Oak Forest have any water quality violations?
Yes, Oak Forest currently has 11 active violations. See the violations section above for details.