Edwardsville, Illinois Water Quality Report
Water quality data for 5 water systems serving 36,608 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| PFBA | 0.027 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFBS | 0.004 | No federal limit | 2000.0 ug/L(EPA Health Advisory) | 0% | Below guideline |
| PFOA | 0.004 | 0.004 ug/L | 0.090 ug/L(EWG) | 103% | Above limit |
| PFOS | 0.004 | 0.004 ug/L | 0.300 ug/L(EWG) | 103% | Above limit |
| PFPeA | 0.004 | 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 (70)
72
Jul 1, 2025
51
Jul 1, 2025
66
Apr 1, 2025
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Resolved Violations (164)
27
Jul 1, 2025 — Sep 30, 2025
27
Jul 1, 2025 — Sep 30, 2025
27
Jan 1, 2025 — Mar 31, 2025
27
Jan 1, 2025 — Mar 31, 2025
27
Jan 1, 2025 — Mar 31, 2025
+ 159 more resolved violations
Frequently Asked Questions
Is Edwardsville tap water safe to drink?
Edwardsville'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 Edwardsville tap water?
5 contaminants have been detected in Edwardsville's water supply across 5 water systems. See the full contaminant table above for details.
How can I improve my water quality in Edwardsville?
Install a water filter rated for the specific contaminants found in Edwardsville's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Edwardsville have any water quality violations?
Yes, Edwardsville currently has 70 active violations. See the violations section above for details.