Hamilton Public Water System
PWSID OH0904012 · Fairfield, Ohio · serves 62,447 people · groundwater source
D
Poor
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFOA | 5.3 ppt | 4 ppt | 11/13/2024 |
| PFHxS | 4.1 ppt | 10 ppt | 11/13/2024 |
| PFBS | 3.6 ppt | — | 11/13/2024 |
| PFBS | 3 ppt | — | 5/8/2024 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2025-12-30 | Consumer Confidence Rule | Other | No | Unaddressed |
| 2025-04-01 | Chlorite | MR | No | Archived |