TRENTON WATER WORKS
PWS ID: NJ1111001 · TRENTON, New Jersey 08638
Population Served
217,000
Total Violations
412
Health-Based Violations
107
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 62,403
- County
- Mercer
- School/Daycare
- No
- MCL Violations
- 64
- Monitoring Violations
- 282
- Treatment Tech Violations
- 43
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Surface Water Treatment Rule | MR | 67 | 2023 |
| Revised Total Coliform Rule | MON | 57 | 2023 |
| Lead and Copper Rule | MR | 44 | 2024 |
| TTHM | MCL | 40 | 2024 |
| Total Haloacetic Acids (HAA5) | MCL | 24 | 2018 |
| Lead and Copper Rule | TT | 23 | 2021 |
| Interim Enhanced Surface Water Treatment Rule | MR | 18 | 2023 |
| Consumer Confidence Rule | Other | 9 | 2021 |
| Surface Water Treatment Rule | TT | 8 | 2018 |
| Coliform (TCR) | MR | 6 | 2014 |
| CARBON, TOTAL | TT | 6 | 2010 |
| Interim Enhanced Surface Water Treatment Rule | TT | 6 | 2021 |
| CARBON, TOTAL | MR | 6 | 2002 |
| Public Notice | Other | 5 | 2021 |
| Fluoride | MR | 4 | 2021 |
| Total Haloacetic Acids (HAA5) | MR | 3 | 2023 |
| Xylenes, Total | MR | 3 | 2023 |
| DICHLOROMETHANE | MR | 3 | 2023 |
| o-Dichlorobenzene | MR | 3 | 2023 |
| p-Dichlorobenzene | MR | 3 | 2023 |
| Vinyl chloride | MR | 3 | 2023 |
| 1,2-Dichloroethane | MR | 3 | 2023 |
| 1,1,1-Trichloroethane | MR | 3 | 2023 |
| 1,1,2-Trichloroethane | MR | 3 | 2023 |
| Tetrachloroethylene | MR | 3 | 2023 |
| CHLOROBENZENE | MR | 3 | 2023 |
| Benzene | MR | 3 | 2023 |
| Toluene | MR | 3 | 2023 |
| Ethylbenzene | MR | 3 | 2023 |
| Styrene | MR | 3 | 2023 |
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 120 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| NMeFOSAA | 7/31/2023 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| NEtFOSAA | 7/31/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFTrDA | 7/31/2023 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| PFTA | 7/31/2023 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| lithium | 7/31/2023 | <9 µg/L | 9 µg/L | Not Detected |
| NEtFOSAA | 4/19/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFHxA | 4/19/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDoA | 4/19/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDA | 4/19/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFOA | 4/19/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOS | 4/19/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFNA | 4/19/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHxS | 4/19/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpA | 4/19/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBS | 4/19/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFTA | 4/19/2023 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| NMeFOSAA | 4/19/2023 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| PFTrDA | 4/19/2023 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| PFHpS | 4/19/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFUnA | 4/19/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| lithium | 4/19/2023 | <9 µg/L | 9 µg/L | Not Detected |
| 8:2 FTS | 4/19/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFPeS | 4/19/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFEESA | 4/19/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMBA | 4/19/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| NFDHA | 4/19/2023 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| PFMPA | 4/19/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| 11Cl-PF3OUdS | 4/19/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 4:2 FTS | 4/19/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 6:2 FTS | 4/19/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFBA | 4/19/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| HFPO-DA | 4/19/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| ADONA | 4/19/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 9Cl-PF3ONS | 4/19/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| PFPeA | 4/19/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMPA | 10/31/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| 4:2 FTS | 10/31/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBA | 10/31/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 8:2 FTS | 10/31/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| HFPO-DA | 10/31/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 6:2 FTS | 10/31/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFPeA | 10/31/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMBA | 10/31/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeS | 10/31/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| NFDHA | 10/31/2023 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| PFEESA | 10/31/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 9Cl-PF3ONS | 10/31/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| 11Cl-PF3OUdS | 10/31/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFHpS | 10/31/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpA | 10/31/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
PFAS data from EPA UCMR5 monitoring program (2023-2025).
This data is provided for informational purposes only.