Madison Water Utility
PWSID WI1130224 · Madison, Wisconsin · serves 272,000 people · groundwater source
C
Fair
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFBA | 46.5 ppt | — | 4/4/2024 |
| PFBA | 46 ppt | — | 10/10/2023 |
| PFHxS | 7.3 ppt | 10 ppt | 4/3/2024 |
| PFHxS | 6.6 ppt | 10 ppt | 10/2/2023 |
| PFHxS | 4.8 ppt | 10 ppt | 10/7/2024 |
| PFHxS | 4.6 ppt | 10 ppt | 10/2/2023 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2024-10-17 | LEAD AND COPPER RULE REVISIONS | TT | Yes | Resolved |
| 2024-10-17 | Public Notice | Other | No | Resolved |