Lemont, Illinois Water Quality Report
Water quality data for 5 water systems serving 18,131 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| lithium | 53.8 | No federal limit | 10.0 ug/L(EPA/USGS HBSL) | 538% | Above guideline |
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Compliance & Violations
Active Violations (52)
72
Jul 1, 2025
72
Jul 1, 2025
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Resolved Violations (354)
4G
Oct 17, 2024
4G
Oct 17, 2024
4G
Oct 17, 2024
2E
Oct 17, 2024
4G
Oct 17, 2024
+ 349 more resolved violations
Frequently Asked Questions
Is Lemont tap water safe to drink?
Lemont'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 Lemont tap water?
1 contaminants have been detected in Lemont's water supply across 5 water systems. See the full contaminant table above for details.
How can I improve my water quality in Lemont?
Install a water filter rated for the specific contaminants found in Lemont's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Lemont have any water quality violations?
Yes, Lemont currently has 52 active violations. See the violations section above for details.