Gswc - Claremont
PWSID CA1910024 · San Dimas, California · serves 39,776 people · surface water source
C
Fair
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFOA | 12.9 ppt | 4 ppt | 9/27/2023 |
| PFOS | 10.4 ppt | 4 ppt | 9/27/2023 |
| PFOA | 9.6 ppt | 4 ppt | 12/11/2023 |
| PFOA | 9.3 ppt | 4 ppt | 12/7/2023 |
| PFHxA | 8.4 ppt | — | 12/11/2023 |
| PFHxA | 7.6 ppt | — | 12/7/2023 |
| PFPeA | 6.4 ppt | — | 12/11/2023 |
| PFOA | 6.1 ppt | 4 ppt | 3/19/2024 |
| PFPeA | 5.8 ppt | — | 12/7/2023 |
| PFHxA | 5.6 ppt | — | 9/27/2023 |
| PFHxA | 5.5 ppt | — | 3/19/2024 |
| PFBS | 5.1 ppt | — | 12/7/2023 |
| PFBS | 5 ppt | — | 12/11/2023 |
| PFHpA | 4.6 ppt | — | 12/11/2023 |
| PFPeA | 4.4 ppt | — | 3/19/2024 |
| PFOA | 4.4 ppt | 4 ppt | 6/4/2024 |
| PFPeA | 4.3 ppt | — | 9/27/2023 |
| PFHpA | 4.2 ppt | — | 12/7/2023 |
| PFHxA | 4 ppt | — | 6/4/2024 |
| PFBS | 3.9 ppt | — | 3/19/2024 |
| PFHxA | 3.9 ppt | — | 3/26/2024 |
| PFHxS | 3.7 ppt | 10 ppt | 12/7/2023 |
| PFHxS | 3.7 ppt | 10 ppt | 12/11/2023 |
| PFPeA | 3.7 ppt | — | 3/26/2024 |
| PFHxA | 3.6 ppt | — | 3/26/2024 |
| PFHxA | 3.3 ppt | — | 9/27/2023 |
| PFBS | 3.3 ppt | — | 3/26/2024 |
| PFHxS | 3.2 ppt | 10 ppt | 3/19/2024 |
| PFPeA | 3.1 ppt | — | 6/4/2024 |
| PFPeA | 3.1 ppt | — | 9/18/2023 |
| PFPeA | 3.1 ppt | — | 3/26/2024 |
| PFHpA | 3 ppt | — | 3/19/2024 |
| PFBS | 3 ppt | — | 6/4/2024 |
| PFHpA | 3 ppt | — | 9/27/2023 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
No violations on record in the period covered. 🎉