Liberty Water Rio Rico
PWSID AZ0412011 · Sierra Vista, Arizona · serves 17,960 people · groundwater source
F
Failing
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFOS | 40.9 ppt | 4 ppt | 10/11/2023 |
| PFOS | 40 ppt | 4 ppt | 4/17/2023 |
| PFOS | 40 ppt | 4 ppt | 4/17/2023 |
| PFOS | 24 ppt | 4 ppt | 10/11/2023 |
| PFOS | 22.9 ppt | 4 ppt | 10/11/2023 |
| PFBS | 20 ppt | — | 4/17/2023 |
| PFBS | 12.9 ppt | — | 10/11/2023 |
| PFHxS | 10.9 ppt | 10 ppt | 10/11/2023 |
| PFOS | 10 ppt | 4 ppt | 4/17/2023 |
| PFOA | 10 ppt | 4 ppt | 4/17/2023 |
| PFBS | 10 ppt | — | 4/17/2023 |
| PFHxS | 10 ppt | 10 ppt | 4/17/2023 |
| PFBS | 9.5 ppt | — | 10/11/2023 |
| PFBS | 9.2 ppt | — | 10/11/2023 |
| PFHxS | 7 ppt | 10 ppt | 10/11/2023 |
| PFHxS | 7 ppt | 10 ppt | 4/17/2023 |
| PFBA | 7 ppt | — | 4/17/2023 |
| PFBS | 6 ppt | — | 4/17/2023 |
| PFOA | 5.9 ppt | 4 ppt | 10/11/2023 |
| PFHxS | 5.6 ppt | 10 ppt | 10/11/2023 |
| PFBA | 5.1 ppt | — | 10/11/2023 |
| PFBA | 5 ppt | — | 4/17/2023 |
| PFOA | 4.3 ppt | 4 ppt | 10/11/2023 |
| PFHxS | 4 ppt | 10 ppt | 4/17/2023 |
| PFHxA | 4 ppt | — | 4/17/2023 |
| PFOA | 4 ppt | 4 ppt | 4/17/2023 |
| PFPeA | 3 ppt | — | 4/17/2023 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2025-07-01 | 2,4-D | MR | No | Resolved |
| 2024-08-01 | Revised Total Coliform Rule | RPT | No | Resolved |
| 2023-01-01 | TTHM | MR | No | Resolved |
| 2023-01-01 | Total Haloacetic Acids (HAA5) | MR | No | Resolved |