Hillsboro, Illinois Water Quality Report
Water quality data for 3 water systems serving 7,120 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (38)
4H
Jul 2, 2025
4H
Jul 2, 2025
52
Jul 1, 2025
52
Jul 1, 2025
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Resolved Violations (109)
03
Apr 1, 2025 — Jun 30, 2025
03
Apr 1, 2025 — Jun 30, 2025
03
Apr 1, 2025 — Jun 30, 2025
03
Apr 1, 2025 — Jun 30, 2025
27
Jul 1, 2024 — Sep 30, 2024
+ 104 more resolved violations
Frequently Asked Questions
Is Hillsboro tap water safe to drink?
Hillsboro'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 Hillsboro tap water?
0 contaminants have been detected in Hillsboro's water supply across 3 water systems. See the full contaminant table above for details.
How can I improve my water quality in Hillsboro?
Install a water filter rated for the specific contaminants found in Hillsboro's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Hillsboro have any water quality violations?
Yes, Hillsboro currently has 38 active violations. See the violations section above for details.