SUBURBAN WATER SYSTEMS-WHITTIER
PWS ID: CA1910174 · COVINA, California 91724
PFAS Detected
6 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
Population Served
66,045
Total Violations
4
Health-Based Violations
0
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 18,072
- County
- Los Angeles
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 0
- Treatment Tech Violations
- 0
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 12 of 60 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFTrDA | 9/11/2023 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| PFTA | 9/11/2023 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| NEtFOSAA | 9/11/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| NMeFOSAA | 9/11/2023 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| lithium | 9/11/2023 | <9 µg/L | 9 µg/L | Not Detected |
| PFMPA | 4/18/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHxA | 4/18/2024 | 0.0030 µg/L | 0.003 µg/L | Detected |
| PFPeA | 4/18/2024 | 0.0040 µg/L | 0.003 µg/L | Detected |
| PFBA | 4/18/2024 | 0.0086 µg/L | 0.005 µg/L | Detected |
| 8:2 FTS | 4/18/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 4:2 FTS | 4/18/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 6:2 FTS | 4/18/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| HFPO-DA | 4/18/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| ADONA | 4/18/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 9Cl-PF3ONS | 4/18/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| PFUnA | 4/18/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| PFMBA | 4/18/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 11Cl-PF3OUdS | 4/18/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| NFDHA | 4/18/2024 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| PFHpS | 4/18/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBS | 4/18/2024 | 0.0039 µg/L | 0.003 µg/L | Detected |
| PFHpA | 4/18/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHxS | 4/18/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFNA | 4/18/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOS | 4/18/2024 | 0.0130 µg/L | 0.004 µg/L | Detected |
| PFOA | 4/18/2024 | 0.0063 µg/L | 0.004 µg/L | Detected |
| PFDA | 4/18/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDoA | 4/18/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFEESA | 4/18/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeS | 4/18/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| NEtFOSAA | 3/7/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| lithium | 3/7/2024 | <9 µg/L | 9 µg/L | Not Detected |
| PFTrDA | 3/7/2024 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| NMeFOSAA | 3/7/2024 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| PFTA | 3/7/2024 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| PFDA | 11/8/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBS | 11/8/2023 | 0.0037 µg/L | 0.003 µg/L | Detected |
| PFHpA | 11/8/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHxS | 11/8/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFNA | 11/8/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOA | 11/8/2023 | 0.0062 µg/L | 0.004 µg/L | Detected |
| PFDoA | 11/8/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHxA | 11/8/2023 | 0.0030 µg/L | 0.003 µg/L | Detected |
| PFUnA | 11/8/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| 11Cl-PF3OUdS | 11/8/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 9Cl-PF3ONS | 11/8/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| PFMBA | 11/8/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpS | 11/8/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeS | 11/8/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOS | 11/8/2023 | 0.0120 µg/L | 0.004 µg/L | 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.