Grafton Water District
PWSID MA2110000 · Grafton, Massachusetts · serves 10,925 people · groundwater source
F
Failing
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFOS | 6.9 ppt | 4 ppt | 10/23/2024 |
| PFOA | 6.9 ppt | 4 ppt | 10/23/2024 |
| PFOA | 6.4 ppt | 4 ppt | 8/20/2025 |
| PFOA | 6.1 ppt | 4 ppt | 8/20/2025 |
| PFOS | 5.8 ppt | 4 ppt | 8/20/2025 |
| PFOS | 5.5 ppt | 4 ppt | 8/20/2025 |
| PFOS | 5.2 ppt | 4 ppt | 8/20/2025 |
| PFOS | 4.9 ppt | 4 ppt | 9/25/2024 |
| PFOA | 4.3 ppt | 4 ppt | 9/25/2024 |
| PFOA | 4.1 ppt | 4 ppt | 8/20/2025 |
| PFHxA | 3.6 ppt | — | 8/20/2025 |
| PFPeA | 3.5 ppt | — | 8/20/2025 |
| PFHxA | 3.3 ppt | — | 10/23/2024 |
| PFPeA | 3.2 ppt | — | 10/23/2024 |
| PFBS | 3.1 ppt | — | 8/20/2025 |
| PFBS | 3.1 ppt | — | 8/20/2025 |
| PFBS | 3 ppt | — | 8/20/2025 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2023-07-22 | Groundwater Rule | MR | No | Resolved |
| 2023-04-03 | Groundwater Rule | MR | No | Resolved |
| 2023-04-01 | Nitrate | MR | No | Resolved |
| 2023-04-01 | Benzene | MR | No | Archived |
| 2023-04-01 | Carbon tetrachloride | MR | No | Archived |
| 2023-04-01 | 1,1-Dichloroethylene | MR | No | Archived |
| 2023-04-01 | 1,2-Dichloroethane | MR | No | Archived |
| 2023-04-01 | Trichloroethylene | MR | No | Archived |
| 2023-04-01 | 1,1,1-Trichloroethane | MR | No | Archived |
| 2023-04-01 | Vinyl chloride | MR | No | Archived |
| 2023-04-01 | CHLOROBENZENE | MR | No | Archived |
| 2023-04-01 | o-Dichlorobenzene | MR | No | Archived |
| 2023-04-01 | trans-1,2-Dichloroethylene | MR | No | Archived |
| 2023-04-01 | cis-1,2-Dichloroethylene | MR | No | Archived |
| 2023-04-01 | 1,2-Dichloropropane | MR | No | Archived |
| 2023-04-01 | Ethylbenzene | MR | No | Archived |
| 2023-04-01 | Styrene | MR | No | Archived |
| 2023-04-01 | Tetrachloroethylene | MR | No | Archived |
| 2023-04-01 | Toluene | MR | No | Archived |
| 2023-04-01 | p-Dichlorobenzene | MR | No | Archived |
| 2023-04-01 | Xylenes, Total | MR | No | Archived |
| 2023-04-01 | DICHLOROMETHANE | MR | No | Archived |
| 2023-04-01 | 1,1,2-Trichloroethane | MR | No | Archived |
| 2023-04-01 | 1,2,4-Trichlorobenzene | MR | No | Archived |
| 2023-04-01 | ETHYLENE DIBROMIDE | MR | No | Archived |
| 2023-04-01 | 1,2-DIBROMO-3-CHLOROPROPANE | MR | No | Archived |
| 2023-04-01 | Public Notice | Other | No | Resolved |
| 2023-04-01 | Benzene | MR | No | Resolved |
| 2023-04-01 | Carbon tetrachloride | MR | No | Resolved |
| 2023-04-01 | 1,1-Dichloroethylene | MR | No | Resolved |
| 2023-04-01 | 1,2-Dichloroethane | MR | No | Resolved |
| 2023-04-01 | Trichloroethylene | MR | No | Resolved |
| 2023-04-01 | 1,1,1-Trichloroethane | MR | No | Resolved |
| 2023-04-01 | Vinyl chloride | MR | No | Resolved |
| 2023-04-01 | CHLOROBENZENE | MR | No | Resolved |
| 2023-04-01 | o-Dichlorobenzene | MR | No | Resolved |
| 2023-04-01 | trans-1,2-Dichloroethylene | MR | No | Resolved |
| 2023-04-01 | cis-1,2-Dichloroethylene | MR | No | Resolved |
| 2023-04-01 | 1,2-Dichloropropane | MR | No | Resolved |
| 2023-04-01 | Ethylbenzene | MR | No | Resolved |
| 2023-04-01 | Styrene | MR | No | Resolved |
| 2023-04-01 | Tetrachloroethylene | MR | No | Resolved |
| 2023-04-01 | Toluene | MR | No | Resolved |
| 2023-04-01 | p-Dichlorobenzene | MR | No | Resolved |
| 2023-04-01 | Xylenes, Total | MR | No | Resolved |
| 2023-04-01 | DICHLOROMETHANE | MR | No | Resolved |
| 2023-04-01 | 1,1,2-Trichloroethane | MR | No | Resolved |
| 2023-04-01 | 1,2,4-Trichlorobenzene | MR | No | Resolved |