Chukchansi Gold Resort
PWS ID: 090605163 · Coarsegold, 09 93614
PFAS Detected
5 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
Population Served
5,000
Total Violations
9
Health-Based Violations
0
Water Source
Groundwater
System Details
- System Type
- Non-Transient Non-Community
- Owner Type
- Native American
- Connections
- 1
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 1
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 1 | 2006 |
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 8 of 60 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFTA | 6/7/2023 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| PFTrDA | 6/7/2023 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| NEtFOSAA | 6/7/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| NMeFOSAA | 6/7/2023 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| lithium | 6/7/2023 | 66.0000 µg/L | 9 µg/L | Detected |
| 11Cl-PF3OUdS | 3/6/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFBS | 3/6/2024 | 0.0119 µg/L | 0.003 µg/L | Detected |
| PFHpA | 3/6/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHxS | 3/6/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFNA | 3/6/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOS | 3/6/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOA | 3/6/2024 | 0.0048 µg/L | 0.004 µg/L | Detected |
| PFDA | 3/6/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDoA | 3/6/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpS | 3/6/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFUnA | 3/6/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| 8:2 FTS | 3/6/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFPeS | 3/6/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| NFDHA | 3/6/2024 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| PFEESA | 3/6/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMBA | 3/6/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeA | 3/6/2024 | 0.0050 µg/L | 0.003 µg/L | Detected |
| PFHxA | 3/6/2024 | 0.0035 µg/L | 0.003 µg/L | Detected |
| PFMPA | 3/6/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| 4:2 FTS | 3/6/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 6:2 FTS | 3/6/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFBA | 3/6/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| HFPO-DA | 3/6/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| ADONA | 3/6/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 9Cl-PF3ONS | 3/6/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| lithium | 12/6/2023 | 69.4000 µg/L | 9 µg/L | Detected |
| PFTrDA | 12/6/2023 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| NEtFOSAA | 12/6/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| NMeFOSAA | 12/6/2023 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| PFTA | 12/6/2023 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| PFPeA | 10/18/2023 | 0.0033 µg/L | 0.003 µg/L | Detected |
| 11Cl-PF3OUdS | 10/18/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 8:2 FTS | 10/18/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFBS | 10/18/2023 | 0.0099 µg/L | 0.003 µg/L | Detected |
| PFHpA | 10/18/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHxS | 10/18/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFNA | 10/18/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOS | 10/18/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOA | 10/18/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFDA | 10/18/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDoA | 10/18/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFUnA | 10/18/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| 9Cl-PF3ONS | 10/18/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| ADONA | 10/18/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| HFPO-DA | 10/18/2023 | <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.