HANOVER WATER DEPT
PWS ID: MA4122000 · HANOVER, Massachusetts 02339
PFAS Detected
8 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
Population Served
14,984
Total Violations
51
Health-Based Violations
15
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 5,165
- County
- Plymouth
- School/Daycare
- No
- MCL Violations
- 15
- Monitoring Violations
- 30
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| TTHM | MCL | 9 | 2020 |
| Coliform (TCR) | MCL | 6 | 2011 |
| Fluoride | MR | 2 | 2025 |
| Mercury | MR | 2 | 2025 |
| Selenium | MR | 2 | 2025 |
| Barium | MR | 2 | 2025 |
| Chromium | MR | 2 | 2025 |
| Beryllium, Total | MR | 2 | 2025 |
| Nickel | MR | 2 | 2025 |
| Thallium, Total | MR | 2 | 2025 |
| CYANIDE | MR | 2 | 2025 |
| Tetrachloroethylene | MR | 2 | 2024 |
| Arsenic | MR | 2 | 2025 |
| Cadmium | MR | 2 | 2025 |
| Consumer Confidence Rule | Other | 2 | 2010 |
| Antimony, Total | MR | 2 | 2025 |
| Coliform (TCR) | MR | 2 | 2015 |
| Lead and Copper Rule | MR | 2 | 2000 |
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 21 of 180 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFPeS | 8/22/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| HFPO-DA | 8/22/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFDA | 8/22/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBS | 8/22/2023 | 0.0066 µg/L | 0.003 µg/L | Detected |
| PFHpA | 8/22/2023 | 0.0035 µg/L | 0.003 µg/L | Detected |
| PFHxS | 8/22/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFNA | 8/22/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOS | 8/22/2023 | 0.0114 µg/L | 0.004 µg/L | Detected |
| PFOA | 8/22/2023 | 0.0089 µg/L | 0.004 µg/L | Detected |
| PFDoA | 8/22/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHxA | 8/22/2023 | 0.0086 µg/L | 0.003 µg/L | Detected |
| PFUnA | 8/22/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| 11Cl-PF3OUdS | 8/22/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| NMeFOSAA | 8/22/2023 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| ADONA | 8/22/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFTA | 8/22/2023 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| PFTrDA | 8/22/2023 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| NEtFOSAA | 8/22/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| NFDHA | 8/22/2023 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| 9Cl-PF3ONS | 8/22/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| PFHpS | 8/22/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBA | 8/22/2023 | 0.0080 µg/L | 0.005 µg/L | Detected |
| PFEESA | 8/22/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| lithium | 8/22/2023 | <9 µg/L | 9 µg/L | Not Detected |
| 6:2 FTS | 8/22/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 8:2 FTS | 8/22/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFMPA | 8/22/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFMBA | 8/22/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeA | 8/22/2023 | 0.0116 µg/L | 0.003 µg/L | Detected |
| 4:2 FTS | 8/22/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| lithium | 8/22/2023 | 9.5800 µg/L | 9 µg/L | Detected |
| NFDHA | 8/22/2023 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| HFPO-DA | 8/22/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFBS | 8/22/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpA | 8/22/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHxS | 8/22/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFNA | 8/22/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOS | 8/22/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOA | 8/22/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFDA | 8/22/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDoA | 8/22/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHxA | 8/22/2023 | 0.0043 µg/L | 0.003 µg/L | Detected |
| PFUnA | 8/22/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| 11Cl-PF3OUdS | 8/22/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFHpS | 8/22/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| ADONA | 8/22/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| NMeFOSAA | 8/22/2023 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| PFBA | 8/22/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 6:2 FTS | 8/22/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 4:2 FTS | 8/22/2023 | <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.