San Jose Water
PWSID CA4310011 · San Jose, California · serves 1,039,920 people · surface water source
F
Failing
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFOS | 6.2 ppt | 4 ppt | 8/16/2023 |
| PFHxS | 5.5 ppt | 10 ppt | 8/16/2023 |
| PFHxS | 4.4 ppt | 10 ppt | 4/19/2023 |
| PFOS | 4.2 ppt | 4 ppt | 4/19/2023 |
| PFHxS | 4 ppt | 10 ppt | 4/19/2023 |
| PFHxS | 4 ppt | 10 ppt | 8/22/2023 |
| PFHxS | 4 ppt | 10 ppt | 4/19/2023 |
| PFHxS | 3.7 ppt | 10 ppt | 4/19/2023 |
| PFHxS | 3.4 ppt | 10 ppt | 4/19/2023 |
| PFHxS | 3.2 ppt | 10 ppt | 8/23/2023 |
| PFHxS | 3.2 ppt | 10 ppt | 4/19/2023 |
| PFHxS | 3.1 ppt | 10 ppt | 4/19/2023 |
| PFHxS | 3.1 ppt | 10 ppt | 8/22/2023 |
| PFHxS | 3.1 ppt | 10 ppt | 2/16/2023 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2023-06-01 | Surface Water Treatment Rule | TT | Yes | Resolved |