PAWHUSKA
PWS ID: OK1021301 · PAWHUSKA, Oklahoma 74056
Population Served
3,800
Total Violations
230
Health-Based Violations
134
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 2,136
- County
- Osage
- School/Daycare
- No
- MCL Violations
- 119
- Monitoring Violations
- 80
- Treatment Tech Violations
- 15
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| TTHM | MCL | 97 | 2025 |
| Lead and Copper Rule | MR | 22 | 2021 |
| TTHM | MR | 17 | 2025 |
| Total Haloacetic Acids (HAA5) | MCL | 13 | 2005 |
| Interim Enhanced Surface Water Treatment Rule | TT | 13 | 2020 |
| Nitrate-Nitrite | MR | 8 | 2017 |
| Coliform (TCR) | MR | 7 | 2004 |
| Coliform (TCR) | MCL | 5 | 2012 |
| Arsenic | MR | 4 | 2007 |
| Combined Radium (-226 and -228) | MR | 4 | 2017 |
| Combined Uranium | MR | 4 | 2017 |
| Chlorine | MR | 4 | 2004 |
| Gross Alpha, Excl. Radon and U | MR | 4 | 2017 |
| Gross Beta Particle Activity | MR | 4 | 2017 |
| Revised Total Coliform Rule | MCL | 4 | 2016 |
| Consumer Confidence Rule | Other | 3 | 2022 |
| LEAD AND COPPER RULE REVISIONS | TT | 2 | 2024 |
| LEAD AND COPPER RULE REVISIONS | RPT | 2 | 2024 |
| Nitrate | MR | 2 | 2000 |
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 120 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFBS | 7/10/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 4:2 FTS | 7/10/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 8:2 FTS | 7/10/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| lithium | 7/10/2024 | <9 µg/L | 9 µg/L | Not Detected |
| PFTA | 7/10/2024 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| PFTrDA | 7/10/2024 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| NEtFOSAA | 7/10/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| NMeFOSAA | 7/10/2024 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| PFBA | 7/10/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFMPA | 7/10/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFEESA | 7/10/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| ADONA | 7/10/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 9Cl-PF3ONS | 7/10/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| 11Cl-PF3OUdS | 7/10/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFUnA | 7/10/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| PFDoA | 7/10/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 6:2 FTS | 7/10/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| HFPO-DA | 7/10/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFHpA | 7/10/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeS | 7/10/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| NFDHA | 7/10/2024 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| PFHxA | 7/10/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFOA | 7/10/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOS | 7/10/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFNA | 7/10/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHxS | 7/10/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpS | 7/10/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMBA | 7/10/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeA | 7/10/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDA | 7/10/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 9Cl-PF3ONS | 4/10/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| PFHpS | 4/10/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeS | 4/10/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFTrDA | 4/10/2024 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| NFDHA | 4/10/2024 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| NEtFOSAA | 4/10/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFEESA | 4/10/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMBA | 4/10/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeA | 4/10/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMPA | 4/10/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| 8:2 FTS | 4/10/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 4:2 FTS | 4/10/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| ADONA | 4/10/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 11Cl-PF3OUdS | 4/10/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFUnA | 4/10/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| PFNA | 4/10/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| HFPO-DA | 4/10/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| NMeFOSAA | 4/10/2024 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| lithium | 4/10/2024 | <9 µg/L | 9 µg/L | Not Detected |
| PFBS | 4/10/2024 | <0.003 µg/L | 0.003 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.