Lake in the Hills, Illinois Water Quality Report
Water quality data for 1 water system serving 28,661 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| lithium | 10.8 | No federal limit | 10.0 ug/L(EPA/USGS HBSL) | 108% | Above guideline |
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Compliance & Violations
Active Violations (12)
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Resolved Violations (40)
27
Jan 1, 2025 — Dec 31, 2025
27
Jan 1, 2025 — Dec 31, 2025
22
Aug 1, 2012 — Aug 31, 2012
22
Aug 1, 2012 — Aug 31, 2012
22
Aug 1, 2012 — Aug 31, 2012
+ 35 more resolved violations
Frequently Asked Questions
Is Lake in the Hills tap water safe to drink?
Lake in the Hills'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 Lake in the Hills tap water?
1 contaminants have been detected in Lake in the Hills's water supply across 1 water system. See the full contaminant table above for details.
How can I improve my water quality in Lake in the Hills?
Install a water filter rated for the specific contaminants found in Lake in the Hills's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Lake in the Hills have any water quality violations?
Yes, Lake in the Hills currently has 12 active violations. See the violations section above for details.