Atascadero Mutual Water Co
PWSID CA4010002 · Atascadero, California · serves 33,307 people · groundwater source
C
Fair
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFOS | 22.3 ppt | 4 ppt | 10/11/2023 |
| PFOS | 21 ppt | 4 ppt | 5/30/2023 |
| PFBA | 10 ppt | — | 10/11/2023 |
| PFBS | 9.4 ppt | — | 10/11/2023 |
| PFOA | 8.4 ppt | 4 ppt | 5/30/2023 |
| PFHxS | 7.6 ppt | 10 ppt | 10/11/2023 |
| PFBA | 7.4 ppt | — | 5/30/2023 |
| PFOA | 7.4 ppt | 4 ppt | 10/11/2023 |
| PFHxS | 6.4 ppt | 10 ppt | 4/19/2023 |
| PFOS | 5.1 ppt | 4 ppt | 10/11/2023 |
| PFOS | 4.7 ppt | 4 ppt | 4/19/2023 |
| PFHxS | 4.3 ppt | 10 ppt | 5/30/2023 |
| PFBS | 3.9 ppt | — | 5/30/2023 |
| PFBS | 3.7 ppt | — | 10/11/2023 |
| PFHxS | 3.3 ppt | 10 ppt | 10/11/2023 |
| PFHxS | 3.2 ppt | 10 ppt | 4/19/2023 |
| PFHxS | 3.1 ppt | 10 ppt | 10/11/2023 |
| PFBS | 3 ppt | — | 4/19/2023 |
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. 🎉