NORTH PENN WATER AUTHORITY
PWS ID: PA1460034 · LANSDALE, Pennsylvania 19446
PFAS Detected
4 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
Population Served
91,941
Total Violations
209
Health-Based Violations
23
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 35,797
- County
- Montgomery
- School/Daycare
- No
- MCL Violations
- 23
- Monitoring Violations
- 182
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Tetrachloroethylene | MCL | 14 | 1994 |
| Nitrate | MR | 10 | 1993 |
| Coliform (TCR) | MCL | 9 | 1994 |
| CYANIDE | MR | 8 | 2002 |
| Methoxychlor | MR | 7 | 1996 |
| BHC-GAMMA | MR | 7 | 1996 |
| 2,4-D | MR | 7 | 1996 |
| Gross Alpha, Excl. Radon and U | MR | 6 | 2005 |
| Endothall | MR | 6 | 1996 |
| OXAMYL | MR | 6 | 1996 |
| Di(2-ethylhexyl) phthalate | MR | 6 | 1996 |
| Picloram | MR | 6 | 1996 |
| Hexachlorocyclopentadiene | MR | 6 | 1996 |
| Atrazine | MR | 6 | 1996 |
| LASSO | MR | 6 | 1996 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 6 | 1996 |
| Di(2-ethylhexyl) adipate | MR | 6 | 1996 |
| Pentachlorophenol | MR | 6 | 1996 |
| ETHYLENE DIBROMIDE | MR | 6 | 1996 |
| Chlordane | MR | 6 | 1996 |
| Benzo(a)pyrene | MR | 6 | 1996 |
| Simazine | MR | 6 | 1996 |
| Carbofuran | MR | 6 | 1996 |
| Lead and Copper Rule | MR | 5 | 1992 |
| Combined Uranium | MR | 4 | 2005 |
| Radium-226 | MR | 4 | 2005 |
| Radium-228 | MR | 4 | 2005 |
| DICHLOROMETHANE | MR | 1 | 2006 |
| o-Dichlorobenzene | MR | 1 | 2006 |
| p-Dichlorobenzene | MR | 1 | 2006 |
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 21 of 360 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| 4:2 FTS | 7/16/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeA | 7/16/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| lithium | 7/16/2024 | <9 µg/L | 9 µg/L | Not Detected |
| NMeFOSAA | 7/16/2024 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| PFBA | 7/16/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| NEtFOSAA | 7/16/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFHpS | 7/16/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeS | 7/16/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| NFDHA | 7/16/2024 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| PFMBA | 7/16/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMPA | 7/16/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| 8:2 FTS | 7/16/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFTrDA | 7/16/2024 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| 6:2 FTS | 7/16/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFTA | 7/16/2024 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| PFHxS | 7/16/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFEESA | 7/16/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpA | 7/16/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| HFPO-DA | 7/16/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFNA | 7/16/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOS | 7/16/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOA | 7/16/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFDA | 7/16/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDoA | 7/16/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHxA | 7/16/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFUnA | 7/16/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| 11Cl-PF3OUdS | 7/16/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 9Cl-PF3ONS | 7/16/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| ADONA | 7/16/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBS | 7/16/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpA | 4/10/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| NFDHA | 4/10/2024 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| PFDoA | 4/10/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHxA | 4/10/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFUnA | 4/10/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| 11Cl-PF3OUdS | 4/10/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 9Cl-PF3ONS | 4/10/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| ADONA | 4/10/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBA | 4/10/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 6:2 FTS | 4/10/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 4:2 FTS | 4/10/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 8:2 FTS | 4/10/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFMPA | 4/10/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFPeA | 4/10/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBS | 4/10/2024 | 0.0037 µg/L | 0.003 µg/L | Detected |
| PFEESA | 4/10/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDA | 4/10/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeS | 4/10/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHpS | 4/10/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| HFPO-DA | 4/10/2024 | <0.005 µg/L | 0.005 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.