CITY OF PORT ARTHUR
PWS ID: TX1230009 · PORT ARTHUR, Texas 77641-1089
PFAS Detected
1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
Population Served
56,039
Total Violations
41
Health-Based Violations
21
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 24,840
- County
- Jefferson
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 6
- Treatment Tech Violations
- 21
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Interim Enhanced Surface Water Treatment Rule | TT | 21 | 2025 |
| Public Notice | Other | 5 | 2024 |
| Surface Water Treatment Rule | MR | 3 | 2017 |
| Interim Enhanced Surface Water Treatment Rule | MR | 3 | 2005 |
| Consumer Confidence Rule | Other | 1 | 2017 |
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 1 of 90 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFHxA | 4/30/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| HFPO-DA | 4/30/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| ADONA | 4/30/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 9Cl-PF3ONS | 4/30/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| 11Cl-PF3OUdS | 4/30/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFUnA | 4/30/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| PFDoA | 4/30/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDA | 4/30/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFOA | 4/30/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOS | 4/30/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFBA | 4/30/2024 | 0.0055 µg/L | 0.005 µg/L | Detected |
| PFHxS | 4/30/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeS | 4/30/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHpA | 4/30/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFNA | 4/30/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHpS | 4/30/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBS | 4/30/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| NEtFOSAA | 4/30/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFTrDA | 4/30/2024 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| PFEESA | 4/30/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| NMeFOSAA | 4/30/2024 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| 6:2 FTS | 4/30/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| NFDHA | 4/30/2024 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| PFMBA | 4/30/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeA | 4/30/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMPA | 4/30/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| 8:2 FTS | 4/30/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 4:2 FTS | 4/30/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFTA | 4/30/2024 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| lithium | 4/29/2024 | <9 µg/L | 9 µg/L | Not Detected |
| NFDHA | 12/5/2023 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| HFPO-DA | 12/5/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFBS | 12/5/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpA | 12/5/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHxS | 12/5/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFNA | 12/5/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOS | 12/5/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOA | 12/5/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFDA | 12/5/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDoA | 12/5/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHxA | 12/5/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFUnA | 12/5/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| 11Cl-PF3OUdS | 12/5/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFHpS | 12/5/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| ADONA | 12/5/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBA | 12/5/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 6:2 FTS | 12/5/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 4:2 FTS | 12/5/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 8:2 FTS | 12/5/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFMPA | 12/5/2023 | <0.004 µg/L | 0.004 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.