St. Jacob, Illinois Water Quality Report
Water quality data for 1 water system serving 1,835 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (15)
75
Aug 22, 2025
4H
Jul 2, 2025
4H
Jul 2, 2025
2E
Oct 17, 2024
2E
Oct 17, 2024
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Resolved Violations (58)
71
Jul 1, 2025
71
Jul 1, 2025
27
Oct 1, 2024 — Dec 31, 2024
27
Oct 1, 2024 — Dec 31, 2024
27
Oct 1, 2024 — Dec 31, 2024
+ 53 more resolved violations
Frequently Asked Questions
Is St. Jacob tap water safe to drink?
St. Jacob'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 St. Jacob tap water?
0 contaminants have been detected in St. Jacob's water supply across 1 water system. See the full contaminant table above for details.
How can I improve my water quality in St. Jacob?
Install a water filter rated for the specific contaminants found in St. Jacob's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does St. Jacob have any water quality violations?
Yes, St. Jacob currently has 15 active violations. See the violations section above for details.