GRADY CO RWD #6
PWS ID: OK3002603 · AMBER, Oklahoma 73004
PFAS Detected
1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
Population Served
3,930
Total Violations
173
Health-Based Violations
9
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 1,572
- County
- Grady
- School/Daycare
- No
- MCL Violations
- 8
- Monitoring Violations
- 149
- Treatment Tech Violations
- 1
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Atrazine | MR | 11 | 2025 |
| Total Haloacetic Acids (HAA5) | MR | 10 | 2024 |
| TTHM | MR | 10 | 2024 |
| Chlorine | MR | 9 | 2024 |
| Coliform (TCR) | MCL | 8 | 2010 |
| Revised Total Coliform Rule | MON | 8 | 2023 |
| Dalapon | MR | 7 | 2024 |
| Hexachlorocyclopentadiene | MR | 7 | 2024 |
| LASSO | MR | 4 | 2022 |
| Endrin | MR | 4 | 2024 |
| BHC-GAMMA | MR | 4 | 2024 |
| Heptachlor | MR | 4 | 2024 |
| HEXACHLOROBENZENE | MR | 4 | 2024 |
| Total Polychlorinated Biphenyls (PCB) | MR | 4 | 2024 |
| Methoxychlor | MR | 4 | 2024 |
| E. COLI | MR | 4 | 2018 |
| Asbestos | MR | 4 | 2023 |
| Heptachlor epoxide | MR | 4 | 2024 |
| Diquat | MR | 3 | 2024 |
| Endothall | MR | 3 | 2024 |
| Di(2-ethylhexyl) adipate | MR | 3 | 2024 |
| Di(2-ethylhexyl) phthalate | MR | 3 | 2024 |
| Picloram | MR | 3 | 2024 |
| Dinoseb | MR | 3 | 2024 |
| Carbofuran | MR | 3 | 2024 |
| 2,4-D | MR | 3 | 2024 |
| Benzo(a)pyrene | MR | 3 | 2024 |
| Pentachlorophenol | MR | 3 | 2024 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 3 | 2024 |
| ETHYLENE DIBROMIDE | MR | 3 | 2024 |
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 2 of 60 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| NFDHA | 7/24/2023 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| ADONA | 7/24/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| HFPO-DA | 7/24/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFBA | 7/24/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 6:2 FTS | 7/24/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 4:2 FTS | 7/24/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 8:2 FTS | 7/24/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFMPA | 7/24/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFPeA | 7/24/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeS | 7/24/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFEESA | 7/24/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 9Cl-PF3ONS | 7/24/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| lithium | 7/24/2023 | 24.3000 µg/L | 9 µg/L | Detected |
| PFDoA | 7/24/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpS | 7/24/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMBA | 7/24/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| NEtFOSAA | 7/24/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFUnA | 7/24/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| PFTrDA | 7/24/2023 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| PFDA | 7/24/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| NMeFOSAA | 7/24/2023 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| PFHxA | 7/24/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 11Cl-PF3OUdS | 7/24/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFHpA | 7/24/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHxS | 7/24/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFNA | 7/24/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOS | 7/24/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOA | 7/24/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFBS | 7/24/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFTA | 7/24/2023 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| PFMPA | 1/9/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFDA | 1/9/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFOA | 1/9/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOS | 1/9/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHxS | 1/9/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBS | 1/9/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFEESA | 1/9/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDoA | 1/9/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeA | 1/9/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFNA | 1/9/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| 8:2 FTS | 1/9/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| lithium | 1/9/2023 | 23.8000 µg/L | 9 µg/L | Detected |
| PFTA | 1/9/2023 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| PFTrDA | 1/9/2023 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| NEtFOSAA | 1/9/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| NMeFOSAA | 1/9/2023 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| PFMBA | 1/9/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeS | 1/9/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHpA | 1/9/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpS | 1/9/2023 | <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.