Fosterburg Pwd
PWSID IL1195220 · Alton, Illinois · serves 7,940 people · surface water source
B
Good
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFBA | 19 ppt | — | 12/2/2025 |
| PFBA | 9.3 ppt | — | 3/3/2025 |
| PFBA | 7.6 ppt | — | 9/8/2025 |
| PFBA | 6.7 ppt | — | 6/3/2025 |
| PFPeA | 3.9 ppt | — | 12/2/2025 |
| PFPeA | 3.1 ppt | — | 9/8/2025 |
| PFHxA | 3.1 ppt | — | 12/2/2025 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2025-10-01 | TTHM | MR | No | Resolved |
| 2025-10-01 | Total Haloacetic Acids (HAA5) | MR | No | Resolved |
| 2025-07-01 | Chloramine | MR | No | Resolved |