Osco, Illinois Water Quality Report
Water quality data for 1 water system serving 80 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (42)
4H
Jul 2, 2025
4H
Jul 2, 2025
72
Jul 1, 2025
Violation
Unknown
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Resolved Violations (61)
66
Apr 2, 2011
27
Oct 1, 2008 — Dec 31, 2008
27
Oct 1, 2008 — Dec 31, 2008
23
Feb 1, 2007 — Feb 28, 2007
23
Feb 1, 2007 — Feb 28, 2007
+ 56 more resolved violations
Frequently Asked Questions
Is Osco tap water safe to drink?
Osco's water meets all EPA maximum contaminant levels. However, 0 contaminants were detected at various levels. Some residents may prefer additional filtration for peace of mind.
What contaminants are in Osco tap water?
0 contaminants have been detected in Osco's water supply across 1 water system. See the full contaminant table above for details.
How can I improve my water quality in Osco?
Install a water filter rated for the specific contaminants found in Osco's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Osco have any water quality violations?
Yes, Osco currently has 42 active violations. See the violations section above for details.