FREDERICK
PWS ID: OK1011401 · FREDERICK, Oklahoma 73542
PFAS Detected
2 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
Population Served
3,940
Total Violations
797
Health-Based Violations
710
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 1,915
- County
- Tillman
- School/Daycare
- No
- MCL Violations
- 409
- Monitoring Violations
- 79
- Treatment Tech Violations
- 301
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| TTHM | MCL | 400 | 2024 |
| CARBON, TOTAL | TT | 273 | 2023 |
| CARBON, TOTAL | MR | 47 | 2013 |
| Interim Enhanced Surface Water Treatment Rule | TT | 18 | 2010 |
| Surface Water Treatment Rule | TT | 9 | 2003 |
| Coliform (TCR) | MR | 8 | 2013 |
| Lead and Copper Rule | MR | 8 | 2010 |
| Chlorite | MR | 8 | 2015 |
| Chlorite | MCL | 8 | 2018 |
| TTHM | MR | 5 | 2015 |
| Total Haloacetic Acids (HAA5) | MR | 3 | 2013 |
| LEAD AND COPPER RULE REVISIONS | TT | 1 | 2024 |
| LEAD AND COPPER RULE REVISIONS | RPT | 1 | 2024 |
| Coliform (TCR) | MCL | 1 | 1998 |
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 4 of 95 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| lithium | 9/12/2023 | <9 µg/L | 9 µg/L | Not Detected |
| NMeFOSAA | 9/12/2023 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| PFTrDA | 9/12/2023 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| PFTA | 9/12/2023 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| NEtFOSAA | 9/12/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFUnA | 8/14/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| 9Cl-PF3ONS | 8/14/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| ADONA | 8/14/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBA | 8/14/2023 | 0.0095 µg/L | 0.005 µg/L | Detected |
| 6:2 FTS | 8/14/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 4:2 FTS | 8/14/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 8:2 FTS | 8/14/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFMPA | 8/14/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFPeA | 8/14/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMBA | 8/14/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFEESA | 8/14/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| NFDHA | 8/14/2023 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| PFPeS | 8/14/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| HFPO-DA | 8/14/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFHxA | 8/14/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDoA | 8/14/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDA | 8/14/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFOA | 8/14/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOS | 8/14/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFNA | 8/14/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHxS | 8/14/2023 | 0.0030 µg/L | 0.003 µg/L | Detected |
| PFHpA | 8/14/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBS | 8/14/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 11Cl-PF3OUdS | 8/14/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFHpS | 8/14/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| NMeFOSAA | 6/21/2023 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| PFTrDA | 6/21/2023 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| PFTA | 6/21/2023 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| lithium | 6/21/2023 | <9 µg/L | 9 µg/L | Not Detected |
| NEtFOSAA | 6/21/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| NEtFOSAA | 4/26/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFTrDA | 4/26/2023 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| PFTA | 4/26/2023 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| NMeFOSAA | 4/26/2023 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| lithium | 3/14/2023 | <9 µg/L | 9 µg/L | Not Detected |
| PFTA | 12/4/2023 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| PFMPA | 12/4/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFPeA | 12/4/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMBA | 12/4/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFEESA | 12/4/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| NFDHA | 12/4/2023 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| 8:2 FTS | 12/4/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFHpS | 12/4/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| lithium | 12/4/2023 | <9 µg/L | 9 µg/L | Not Detected |
| PFTrDA | 12/4/2023 | <0.007 µg/L | 0.007 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.