East Alton
PWSID IL1190200 · East Alton, Illinois · serves 5,786 people · groundwater source
D
Poor
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFOS | 17 ppt | 4 ppt | 9/8/2025 |
| PFOA | 16 ppt | 4 ppt | 9/8/2025 |
| PFBA | 16 ppt | — | 9/8/2025 |
| PFBA | 15 ppt | — | 3/3/2025 |
| PFHxS | 8.8 ppt | 10 ppt | 9/8/2025 |
| PFOA | 8.5 ppt | 4 ppt | 3/3/2025 |
| PFBS | 8.4 ppt | — | 9/8/2025 |
| PFPeA | 8.3 ppt | — | 9/8/2025 |
| PFHxS | 7.5 ppt | 10 ppt | 3/3/2025 |
| PFHxA | 5.6 ppt | — | 9/8/2025 |
| PFOS | 5.4 ppt | 4 ppt | 3/3/2025 |
| PFPeA | 4.8 ppt | — | 3/3/2025 |
| PFBS | 4.2 ppt | — | 3/3/2025 |
| PFHpA | 3.8 ppt | — | 9/8/2025 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2025-07-01 | Consumer Confidence Rule | Other | No | Unaddressed |