UPPER SOUTHAMPTON MUN AUTH
PWS ID: PA1090063 · SOUTHAMPTON, Pennsylvania 18966
PFAS Detected
8 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
Population Served
16,000
Total Violations
856
Health-Based Violations
29
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 5,201
- County
- Bucks
- School/Daycare
- No
- MCL Violations
- 21
- Monitoring Violations
- 794
- Treatment Tech Violations
- 8
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Groundwater Rule | MR | 45 | 2025 |
| Coliform (TCR) | MCL | 21 | 2014 |
| TTHM | MR | 19 | 2013 |
| Endrin | MR | 15 | 2017 |
| BHC-GAMMA | MR | 15 | 2017 |
| Total Haloacetic Acids (HAA5) | MR | 15 | 2013 |
| Methoxychlor | MR | 15 | 2017 |
| Simazine | MR | 14 | 2017 |
| Di(2-ethylhexyl) phthalate | MR | 14 | 2017 |
| LASSO | MR | 14 | 2017 |
| Heptachlor epoxide | MR | 14 | 2017 |
| Benzo(a)pyrene | MR | 14 | 2017 |
| Di(2-ethylhexyl) adipate | MR | 14 | 2017 |
| HEXACHLOROBENZENE | MR | 14 | 2017 |
| Hexachlorocyclopentadiene | MR | 14 | 2017 |
| Atrazine | MR | 14 | 2017 |
| Heptachlor | MR | 14 | 2017 |
| Toxaphene | MR | 13 | 2014 |
| Public Notice | Other | 13 | 2022 |
| DICHLOROMETHANE | MR | 12 | 2011 |
| p-Dichlorobenzene | MR | 12 | 2011 |
| 1,1-Dichloroethylene | MR | 12 | 2011 |
| 1,1,1-Trichloroethane | MR | 12 | 2011 |
| Carbon tetrachloride | MR | 12 | 2011 |
| 1,2-Dichloropropane | MR | 12 | 2011 |
| 1,1,2-Trichloroethane | MR | 12 | 2011 |
| CHLOROBENZENE | MR | 12 | 2011 |
| Ethylbenzene | MR | 12 | 2011 |
| Total Polychlorinated Biphenyls (PCB) | MR | 12 | 2014 |
| 1,2,4-Trichlorobenzene | MR | 12 | 2011 |
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 32 of 240 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFBA | 7/21/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| HFPO-DA | 7/21/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| ADONA | 7/21/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 9Cl-PF3ONS | 7/21/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| 11Cl-PF3OUdS | 7/21/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFUnA | 7/21/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| PFHxA | 7/21/2023 | 0.0051 µg/L | 0.003 µg/L | Detected |
| PFDoA | 7/21/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDA | 7/21/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFOA | 7/21/2023 | 0.0128 µg/L | 0.004 µg/L | Detected |
| PFOS | 7/21/2023 | 0.0148 µg/L | 0.004 µg/L | Detected |
| 6:2 FTS | 7/21/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFHxS | 7/21/2023 | 0.0050 µg/L | 0.003 µg/L | Detected |
| PFHpS | 7/21/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFNA | 7/21/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFPeS | 7/21/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| lithium | 7/21/2023 | <9 µg/L | 9 µg/L | Not Detected |
| PFHpA | 7/21/2023 | 0.0040 µg/L | 0.003 µg/L | Detected |
| NMeFOSAA | 7/21/2023 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| NEtFOSAA | 7/21/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| NFDHA | 7/21/2023 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| PFTA | 7/21/2023 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| 4:2 FTS | 7/21/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBS | 7/21/2023 | 0.0075 µg/L | 0.003 µg/L | Detected |
| PFEESA | 7/21/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMBA | 7/21/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeA | 7/21/2023 | 0.0050 µg/L | 0.003 µg/L | Detected |
| PFMPA | 7/21/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| 8:2 FTS | 7/21/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFTrDA | 7/21/2023 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| NEtFOSAA | 7/21/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 6:2 FTS | 7/21/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 8:2 FTS | 7/21/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFPeA | 7/21/2023 | 0.0083 µg/L | 0.003 µg/L | Detected |
| PFMBA | 7/21/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFEESA | 7/21/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| NFDHA | 7/21/2023 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| PFPeS | 7/21/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHpS | 7/21/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFTrDA | 7/21/2023 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| PFBA | 7/21/2023 | 0.0064 µg/L | 0.005 µg/L | Detected |
| NMeFOSAA | 7/21/2023 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| 4:2 FTS | 7/21/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFTA | 7/21/2023 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| PFOA | 7/21/2023 | 0.0142 µg/L | 0.004 µg/L | Detected |
| HFPO-DA | 7/21/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFMPA | 7/21/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| lithium | 7/21/2023 | <9 µg/L | 9 µg/L | Not Detected |
| PFHpA | 7/21/2023 | 0.0051 µg/L | 0.003 µg/L | Detected |
| PFHxS | 7/21/2023 | 0.0047 µg/L | 0.003 µg/L | 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.