PIEDMONT MUNICIPAL AUTHORITY
PWS ID: OK2000909 · PIEDMONT, Oklahoma 73078
PFAS Detected
4 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
Population Served
7,542
Total Violations
395
Health-Based Violations
125
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 2,951
- County
- Canadian
- School/Daycare
- No
- MCL Violations
- 123
- Monitoring Violations
- 237
- Treatment Tech Violations
- 2
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Combined Uranium | MCL | 48 | 2016 |
| Selenium | MCL | 35 | 1984 |
| Gross Alpha, Excl. Radon and U | MCL | 33 | 2024 |
| Simazine | MR | 24 | 2024 |
| Glyphosate | MR | 20 | 2024 |
| Chlorine | MR | 20 | 2024 |
| 2,4-D | MR | 16 | 2024 |
| Revised Total Coliform Rule | MON | 16 | 2024 |
| Coliform (TCR) | MR | 8 | 2003 |
| Coliform (TCR) | MCL | 7 | 1993 |
| Gross Alpha, Excl. Radon and U | MR | 6 | 2025 |
| Combined Uranium | MR | 6 | 2025 |
| Gross Beta Particle Activity | MR | 6 | 2025 |
| Combined Radium (-226 and -228) | MR | 6 | 2025 |
| Lead and Copper Rule | MR | 6 | 2008 |
| Total Haloacetic Acids (HAA5) | MR | 5 | 2023 |
| E. COLI | MR | 5 | 2020 |
| TTHM | MR | 5 | 2023 |
| p-Dichlorobenzene | MR | 4 | 2014 |
| Vinyl chloride | MR | 4 | 2014 |
| 1,1-Dichloroethylene | MR | 4 | 2014 |
| 1,2-Dichloroethane | MR | 4 | 2014 |
| 1,1,1-Trichloroethane | MR | 4 | 2014 |
| 1,1,2-Trichloroethane | MR | 4 | 2014 |
| Toluene | MR | 4 | 2014 |
| Styrene | MR | 4 | 2014 |
| Arsenic | MR | 4 | 2020 |
| DICHLOROMETHANE | MR | 4 | 2014 |
| o-Dichlorobenzene | MR | 4 | 2014 |
| trans-1,2-Dichloroethylene | MR | 4 | 2014 |
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 15 of 240 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFPeA | 8/16/2023 | 0.0031 µg/L | 0.003 µg/L | Detected |
| PFMBA | 8/16/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFEESA | 8/16/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMPA | 8/16/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFPeS | 8/16/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| 8:2 FTS | 8/16/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 4:2 FTS | 8/16/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDoA | 8/16/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| NFDHA | 8/16/2023 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| 6:2 FTS | 8/16/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFBA | 8/16/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| HFPO-DA | 8/16/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| ADONA | 8/16/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 9Cl-PF3ONS | 8/16/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| 11Cl-PF3OUdS | 8/16/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFHpS | 8/16/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHxA | 8/16/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| NEtFOSAA | 8/16/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFDA | 8/16/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFOA | 8/16/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFUnA | 8/16/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| PFHpA | 8/16/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFTA | 8/16/2023 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| PFTrDA | 8/16/2023 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| NMeFOSAA | 8/16/2023 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| PFHxS | 8/16/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBS | 8/16/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFNA | 8/16/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOS | 8/16/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| 11Cl-PF3OUdS | 8/16/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFDoA | 8/16/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMPA | 8/16/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| 8:2 FTS | 8/16/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 4:2 FTS | 8/16/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 6:2 FTS | 8/16/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFBA | 8/16/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| HFPO-DA | 8/16/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 9Cl-PF3ONS | 8/16/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| PFPeA | 8/16/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHxA | 8/16/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFOA | 8/16/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFDA | 8/16/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFOS | 8/16/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| ADONA | 8/16/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHxS | 8/16/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpA | 8/16/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBS | 8/16/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFUnA | 8/16/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| PFEESA | 8/16/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| NFDHA | 8/16/2023 | <0.02 µg/L | 0.02 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.