COWETA PWA
PWS ID: OK1021509 · COWETA, Oklahoma 74429
PFAS Detected
4 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
Population Served
9,450
Total Violations
1,028
Health-Based Violations
809
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 6,123
- County
- Wagoner
- School/Daycare
- No
- MCL Violations
- 559
- Monitoring Violations
- 205
- Treatment Tech Violations
- 250
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| TTHM | MCL | 307 | 2025 |
| Total Haloacetic Acids (HAA5) | MCL | 248 | 2025 |
| CARBON, TOTAL | TT | 220 | 2012 |
| CARBON, TOTAL | MR | 35 | 2019 |
| TTHM | MR | 27 | 2025 |
| Interim Enhanced Surface Water Treatment Rule | TT | 16 | 2023 |
| Interim Enhanced Surface Water Treatment Rule | MR | 12 | 2024 |
| Surface Water Treatment Rule | TT | 12 | 2024 |
| Total Haloacetic Acids (HAA5) | MR | 11 | 2025 |
| Glyphosate | MR | 7 | 2024 |
| Hexachlorocyclopentadiene | MR | 6 | 2024 |
| 1,2,4-Trichlorobenzene | MR | 4 | 2009 |
| cis-1,2-Dichloroethylene | MR | 4 | 2009 |
| o-Dichlorobenzene | MR | 4 | 2009 |
| p-Dichlorobenzene | MR | 4 | 2009 |
| 1,1-Dichloroethylene | MR | 4 | 2009 |
| trans-1,2-Dichloroethylene | MR | 4 | 2009 |
| 1,2-Dichloroethane | MR | 4 | 2009 |
| 1,2-Dichloropropane | MR | 4 | 2009 |
| 1,1,2-Trichloroethane | MR | 4 | 2009 |
| CHLOROBENZENE | MR | 4 | 2009 |
| Benzene | MR | 4 | 2009 |
| Toluene | MR | 4 | 2009 |
| Fluoride | MR | 4 | 2011 |
| Chlorine | MR | 4 | 2023 |
| DICHLOROMETHANE | MR | 4 | 2009 |
| Lead and Copper Rule | MR | 4 | 2009 |
| Styrene | MR | 4 | 2009 |
| Tetrachloroethylene | MR | 4 | 2009 |
| Revised Total Coliform Rule | MON | 4 | 2023 |
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 8 of 120 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| NMeFOSAA | 9/11/2023 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| lithium | 9/11/2023 | <9 µg/L | 9 µg/L | Not Detected |
| NEtFOSAA | 9/11/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFTrDA | 9/11/2023 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| PFTA | 9/11/2023 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| PFHpS | 8/16/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeS | 8/16/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| NFDHA | 8/16/2023 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| PFEESA | 8/16/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMBA | 8/16/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeA | 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 |
| PFMPA | 8/16/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFBS | 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 |
| PFHxS | 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 |
| PFDA | 8/16/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHxA | 8/16/2023 | 0.0031 µg/L | 0.003 µg/L | Detected |
| 8:2 FTS | 8/16/2023 | <0.005 µg/L | 0.005 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 |
| 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 |
| 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 |
| PFTA | 6/28/2023 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| NEtFOSAA | 6/28/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| NMeFOSAA | 6/28/2023 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| PFTrDA | 6/28/2023 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| lithium | 6/28/2023 | <9 µg/L | 9 µg/L | Not Detected |
| PFPeS | 3/5/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFDoA | 3/5/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpA | 3/5/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMPA | 3/5/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHpS | 3/5/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBA | 3/5/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| NFDHA | 3/5/2024 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| PFEESA | 3/5/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBS | 3/5/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 9Cl-PF3ONS | 3/5/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| PFHxA | 3/5/2024 | 0.0042 µg/L | 0.003 µg/L | Detected |
| PFUnA | 3/5/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| PFMBA | 3/5/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeA | 3/5/2024 | 0.0030 µg/L | 0.003 µg/L | Detected |
| 11Cl-PF3OUdS | 3/5/2024 | <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.