Mt. Carroll, Illinois Water Quality Report
Water quality data for 2 water systems serving 1,559 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (4)
72
Jul 1, 2025
2E
Oct 17, 2024
2E
Oct 17, 2024
2E
Oct 17, 2024
Resolved Violations (496)
27
Sep 1, 2025 — Sep 30, 2025
3A
Sep 1, 2025 — Sep 30, 2025
03
Jul 1, 2019 — Sep 30, 2019
03
Jul 1, 2019 — Sep 30, 2019
03
Jul 1, 2019 — Sep 30, 2019
+ 491 more resolved violations
Frequently Asked Questions
Is Mt. Carroll tap water safe to drink?
Mt. Carroll'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 Mt. Carroll tap water?
0 contaminants have been detected in Mt. Carroll's water supply across 2 water systems. See the full contaminant table above for details.
How can I improve my water quality in Mt. Carroll?
Install a water filter rated for the specific contaminants found in Mt. Carroll's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Mt. Carroll have any water quality violations?
Yes, Mt. Carroll currently has 76 active violations. See the violations section above for details.