Dupo
PWSID IL1630350 · Dupo, Illinois · serves 4,684 people · groundwater source
D
Poor
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFOS | 5.6 ppt | 4 ppt | 5/6/2025 |
| PFOS | 4.5 ppt | 4 ppt | 11/3/2025 |
| PFBS | 3.7 ppt | — | 11/3/2025 |
| PFBS | 3.1 ppt | — | 5/6/2025 |
| PFHxS | 3.1 ppt | 10 ppt | 5/6/2025 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2024-07-01 | Consumer Confidence Rule | Other | No | Resolved |