East Alton, Illinois Water Quality Report
Water quality data for 1 water system serving 5,786 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| lithium | 18.0 | No federal limit | 10.0 ug/L(EPA/USGS HBSL) | 180% | Above guideline |
| PFBA | 0.016 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFBS | 0.008 | No federal limit | 2000.0 ug/L(EPA Health Advisory) | 0% | Below guideline |
| PFHpA | 0.004 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFHxA | 0.006 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFHxS | 0.009 | 0.010 ug/L | 0.001 ug/L(EWG) | 88% | Near limit |
| PFOA | 0.016 | 0.004 ug/L | 0.090 ug/L(EWG) | 400% | Above limit |
| PFOS | 0.017 | 0.004 ug/L | 0.300 ug/L(EWG) | 425% | Above limit |
| PFPeA | 0.008 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
Recommended Water Filters
Based on the contaminants detected in your water supply, these filtration systems are recommended:
Reverse Osmosis (RO)
Reverse osmosis systems remove up to 99% of PFAS compounds. Recommended for homes with detected PFAS.
Up to 99% PFAS removal
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Compliance & Violations
Active Violations (17)
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Jul 1, 2025
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Resolved Violations (4)
71
Jul 1, 2007
71
Jul 1, 2007
52
Oct 1, 1994
03
Jun 30, 1977 — Jun 29, 1981
Frequently Asked Questions
Is East Alton tap water safe to drink?
East Alton's water has 2 contaminants detected above EPA limits. While the water is treated, residents may want to consider additional filtration.
What contaminants are in East Alton tap water?
9 contaminants have been detected in East Alton's water supply across 1 water system. See the full contaminant table above for details.
How can I improve my water quality in East Alton?
Install a water filter rated for the specific contaminants found in East Alton's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does East Alton have any water quality violations?
Yes, East Alton currently has 17 active violations. See the violations section above for details.