KEESLER AIR FORCE BASE
PWS ID: MS0240049 · BILOXI, Mississippi 39532
PFAS Detected
2 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
Population Served
8,006
Total Violations
2,534
Health-Based Violations
13
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Federal
- Connections
- 2,127
- County
- Harrison
- School/Daycare
- No
- MCL Violations
- 13
- Monitoring Violations
- 2,488
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Combined Uranium | MR | 785 | 2012 |
| Radium-226 | MR | 533 | 2012 |
| Radium-228 | MR | 533 | 2012 |
| Gross Alpha, Excl. Radon and U | MR | 312 | 2008 |
| Combined Radium (-226 and -228) | MR | 312 | 2008 |
| Coliform (TCR) | MCL | 13 | 2011 |
| Coliform (TCR) | MR | 9 | 2013 |
| Consumer Confidence Rule | Other | 6 | 2008 |
| Chlorine | MR | 4 | 2013 |
| Public Notice | Other | 2 | 2008 |
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 9 of 420 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFTrDA | 8/20/2025 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| PFPeS | 8/20/2025 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| NFDHA | 8/20/2025 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| PFEESA | 8/20/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMBA | 8/20/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMPA | 8/20/2025 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| 4:2 FTS | 8/20/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| NEtFOSAA | 8/20/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFTA | 8/20/2025 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| PFBS | 8/20/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeA | 8/20/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| NMeFOSAA | 8/20/2025 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| PFUnA | 8/20/2025 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| PFHpA | 8/20/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 6:2 FTS | 8/20/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFHpS | 8/20/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBA | 8/20/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| ADONA | 8/20/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 8:2 FTS | 8/20/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 11Cl-PF3OUdS | 8/20/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| HFPO-DA | 8/20/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFHxA | 8/20/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDoA | 8/20/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDA | 8/20/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFOA | 8/20/2025 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOS | 8/20/2025 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFNA | 8/20/2025 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| lithium | 8/20/2025 | 11.7000 µg/L | 9 µg/L | Detected |
| PFHxS | 8/20/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 9Cl-PF3ONS | 8/20/2025 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| NEtFOSAA | 8/20/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFMPA | 8/20/2025 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFPeA | 8/20/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMBA | 8/20/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFEESA | 8/20/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| NFDHA | 8/20/2025 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| 8:2 FTS | 8/20/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFTrDA | 8/20/2025 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| PFPeS | 8/20/2025 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| NMeFOSAA | 8/20/2025 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| lithium | 8/20/2025 | 9.1000 µg/L | 9 µg/L | Detected |
| PFHpS | 8/20/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpA | 8/20/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| HFPO-DA | 8/20/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFTA | 8/20/2025 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| PFBS | 8/20/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 4:2 FTS | 8/20/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHxS | 8/20/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFNA | 8/20/2025 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOS | 8/20/2025 | <0.004 µg/L | 0.004 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.