Denville Twp Water Dept
PWSID NJ1408001 · Denville, New Jersey · serves 15,881 people · groundwater source
F
Failing
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFOA | 12 ppt | 4 ppt | 11/27/2023 |
| PFOA | 11.3 ppt | 4 ppt | 7/8/2024 |
| PFOA | 10.1 ppt | 4 ppt | 11/27/2023 |
| PFOA | 9.2 ppt | 4 ppt | 4/14/2025 |
| PFOA | 8.9 ppt | 4 ppt | 5/15/2024 |
| PFPeA | 8.7 ppt | — | 11/27/2023 |
| PFOA | 8.6 ppt | 4 ppt | 10/23/2024 |
| PFPeA | 6.6 ppt | — | 7/8/2024 |
| PFHxS | 6.5 ppt | 10 ppt | 11/27/2023 |
| PFHxS | 6.3 ppt | 10 ppt | 5/15/2024 |
| PFOA | 6.3 ppt | 4 ppt | 9/30/2024 |
| PFHxA | 6.1 ppt | — | 11/27/2023 |
| PFOA | 5.9 ppt | 4 ppt | 5/15/2024 |
| PFPeA | 5.5 ppt | — | 5/15/2024 |
| PFPeA | 5.3 ppt | — | 11/27/2023 |
| PFHxA | 5.3 ppt | — | 7/8/2024 |
| PFBS | 5 ppt | — | 7/8/2024 |
| PFHpA | 4.5 ppt | — | 11/27/2023 |
| PFOS | 4.4 ppt | 4 ppt | 11/27/2023 |
| PFHxS | 4.3 ppt | 10 ppt | 4/14/2025 |
| PFOS | 4.2 ppt | 4 ppt | 11/27/2023 |
| PFBS | 4.2 ppt | — | 11/27/2023 |
| PFHxA | 4.1 ppt | — | 5/15/2024 |
| PFOS | 4.1 ppt | 4 ppt | 5/15/2024 |
| PFHxS | 4.1 ppt | 10 ppt | 10/23/2024 |
| PFHxA | 4 ppt | — | 11/27/2023 |
| PFHpA | 3.7 ppt | — | 7/8/2024 |
| PFPeA | 3.6 ppt | — | 4/14/2025 |
| PFPeA | 3.3 ppt | — | 10/23/2024 |
| PFBS | 3.3 ppt | — | 4/14/2025 |
| PFBS | 3.2 ppt | — | 10/23/2024 |
| PFHxA | 3.1 ppt | — | 4/14/2025 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2025-01-01 | 1,2,4-Trichlorobenzene | MR | No | Resolved |
| 2025-01-01 | cis-1,2-Dichloroethylene | MR | No | Resolved |
| 2025-01-01 | Xylenes, Total | MR | No | Resolved |
| 2025-01-01 | DICHLOROMETHANE | MR | No | Resolved |
| 2025-01-01 | o-Dichlorobenzene | MR | No | Resolved |
| 2025-01-01 | p-Dichlorobenzene | MR | No | Resolved |
| 2025-01-01 | Vinyl chloride | MR | No | Resolved |
| 2025-01-01 | 1,1-Dichloroethylene | MR | No | Resolved |
| 2025-01-01 | trans-1,2-Dichloroethylene | MR | No | Resolved |
| 2025-01-01 | 1,2-Dichloroethane | MR | No | Resolved |
| 2025-01-01 | 1,1,1-Trichloroethane | MR | No | Resolved |
| 2025-01-01 | Carbon tetrachloride | MR | No | Resolved |
| 2025-01-01 | 1,2-Dichloropropane | MR | No | Resolved |
| 2025-01-01 | Trichloroethylene | MR | No | Resolved |
| 2025-01-01 | 1,1,2-Trichloroethane | MR | No | Resolved |
| 2025-01-01 | Tetrachloroethylene | MR | No | Resolved |
| 2025-01-01 | CHLOROBENZENE | MR | No | Resolved |
| 2025-01-01 | Benzene | MR | No | Resolved |
| 2025-01-01 | Toluene | MR | No | Resolved |
| 2025-01-01 | Ethylbenzene | MR | No | Resolved |
| 2025-01-01 | Styrene | MR | No | Resolved |
| 2023-01-01 | 1,2-DIBROMO-3-CHLOROPROPANE | MR | No | Resolved |
| 2023-01-01 | ETHYLENE DIBROMIDE | MR | No | Resolved |
| 2022-01-01 | 1,2,4-Trichlorobenzene | MR | No | Resolved |
| 2022-01-01 | cis-1,2-Dichloroethylene | MR | No | Resolved |
| 2022-01-01 | Xylenes, Total | MR | No | Resolved |
| 2022-01-01 | DICHLOROMETHANE | MR | No | Resolved |
| 2022-01-01 | o-Dichlorobenzene | MR | No | Resolved |
| 2022-01-01 | p-Dichlorobenzene | MR | No | Resolved |
| 2022-01-01 | Vinyl chloride | MR | No | Resolved |
| 2022-01-01 | 1,1-Dichloroethylene | MR | No | Resolved |
| 2022-01-01 | trans-1,2-Dichloroethylene | MR | No | Resolved |
| 2022-01-01 | 1,2-Dichloroethane | MR | No | Resolved |
| 2022-01-01 | 1,1,1-Trichloroethane | MR | No | Resolved |
| 2022-01-01 | Carbon tetrachloride | MR | No | Resolved |
| 2022-01-01 | 1,2-Dichloropropane | MR | No | Resolved |
| 2022-01-01 | Trichloroethylene | MR | No | Resolved |
| 2022-01-01 | 1,1,2-Trichloroethane | MR | No | Resolved |
| 2022-01-01 | Tetrachloroethylene | MR | No | Resolved |
| 2022-01-01 | CHLOROBENZENE | MR | No | Resolved |
| 2022-01-01 | Benzene | MR | No | Resolved |
| 2022-01-01 | Toluene | MR | No | Resolved |
| 2022-01-01 | Ethylbenzene | MR | No | Resolved |
| 2022-01-01 | Styrene | MR | No | Resolved |