Gswc-South Arcadia
PWSID CA1910212 · San Dimas, California · serves 27,430 people · groundwater source
C
Fair
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFOS | 22 ppt | 4 ppt | 12/20/2023 |
| PFOS | 20 ppt | 4 ppt | 12/20/2023 |
| PFOS | 20 ppt | 4 ppt | 6/13/2024 |
| PFOS | 16 ppt | 4 ppt | 7/10/2024 |
| PFOS | 7.2 ppt | 4 ppt | 12/20/2023 |
| PFOS | 7.1 ppt | 4 ppt | 3/13/2024 |
| PFHxS | 7 ppt | 10 ppt | 6/13/2024 |
| PFHxS | 6.7 ppt | 10 ppt | 12/20/2023 |
| PFHxS | 6.3 ppt | 10 ppt | 12/20/2023 |
| PFHxS | 6.2 ppt | 10 ppt | 7/10/2024 |
| PFOA | 5.5 ppt | 4 ppt | 12/20/2023 |
| PFOA | 5.4 ppt | 4 ppt | 6/13/2024 |
| PFOA | 5.2 ppt | 4 ppt | 7/10/2024 |
| PFOA | 4.5 ppt | 4 ppt | 12/20/2023 |
| PFHxS | 3.3 ppt | 10 ppt | 12/20/2023 |
| PFHxS | 3.2 ppt | 10 ppt | 3/13/2024 |
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. 🎉