DALLAS, TOWN OF
PWS ID: NC0136065 · DALLAS, North Carolina 28034
PFAS Detected
6 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
Population Served
8,125
Total Violations
347
Health-Based Violations
54
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 3,199
- County
- Gaston
- School/Daycare
- No
- MCL Violations
- 20
- Monitoring Violations
- 251
- Treatment Tech Violations
- 34
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| TTHM | MR | 26 | 2024 |
| Total Haloacetic Acids (HAA5) | MR | 25 | 2024 |
| CARBON, TOTAL | TT | 15 | 2012 |
| TTHM | MCL | 15 | 2023 |
| Consumer Confidence Rule | Other | 14 | 2024 |
| Public Notice | Other | 10 | 2022 |
| Interim Enhanced Surface Water Treatment Rule | TT | 10 | 2018 |
| Surface Water Treatment Rule | TT | 9 | 2018 |
| Revised Total Coliform Rule | RPT | 9 | 2024 |
| CARBON, TOTAL | MR | 7 | 2023 |
| 1,2,4-Trichlorobenzene | MR | 5 | 2010 |
| cis-1,2-Dichloroethylene | MR | 5 | 2010 |
| Xylenes, Total | MR | 5 | 2010 |
| DICHLOROMETHANE | MR | 5 | 2010 |
| Vinyl chloride | MR | 5 | 2010 |
| 1,1-Dichloroethylene | MR | 5 | 2010 |
| trans-1,2-Dichloroethylene | MR | 5 | 2010 |
| 1,1,1-Trichloroethane | MR | 5 | 2010 |
| 1,2-Dichloropropane | MR | 5 | 2010 |
| Trichloroethylene | MR | 5 | 2010 |
| 1,1,2-Trichloroethane | MR | 5 | 2010 |
| Styrene | MR | 5 | 2010 |
| Chromium | MR | 5 | 2010 |
| CYANIDE | MR | 5 | 2010 |
| Fluoride | MR | 5 | 2010 |
| Nickel | MR | 5 | 2010 |
| Beryllium, Total | MR | 5 | 2010 |
| Thallium, Total | MR | 5 | 2010 |
| Chlordane | MR | 5 | 2020 |
| Total Polychlorinated Biphenyls (PCB) | MR | 5 | 2020 |
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 12 of 120 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| 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 |
| PFOA | 8/22/2023 | 0.0044 µg/L | 0.004 µg/L | Detected |
| PFHpA | 8/22/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBS | 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 |
| PFHpS | 8/22/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeS | 8/22/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| NFDHA | 8/22/2023 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| PFEESA | 8/22/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMBA | 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 |
| 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 |
| PFDA | 8/22/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeA | 8/22/2023 | 0.0085 µg/L | 0.003 µg/L | Detected |
| PFHxA | 8/22/2023 | 0.0082 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 |
| 9Cl-PF3ONS | 8/22/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| 8:2 FTS | 8/22/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFBA | 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 |
| HFPO-DA | 8/22/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| ADONA | 8/22/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDoA | 5/16/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| ADONA | 5/16/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| lithium | 5/16/2023 | <9 µg/L | 9 µg/L | Not Detected |
| PFHpS | 5/16/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeS | 5/16/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| NFDHA | 5/16/2023 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| PFEESA | 5/16/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMBA | 5/16/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeA | 5/16/2023 | 0.0075 µg/L | 0.003 µg/L | Detected |
| PFMPA | 5/16/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| 4:2 FTS | 5/16/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFOA | 5/16/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| HFPO-DA | 5/16/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFHxA | 5/16/2023 | 0.0069 µg/L | 0.003 µg/L | Detected |
| 9Cl-PF3ONS | 5/16/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| 11Cl-PF3OUdS | 5/16/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFUnA | 5/16/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| 6:2 FTS | 5/16/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFDA | 5/16/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFOS | 5/16/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFNA | 5/16/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHxS | 5/16/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpA | 5/16/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBS | 5/16/2023 | 0.0039 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.