Hildale - Colorado City
PWSID UTAH27006 · Hildale, Utah · serves 6,100 people · groundwater source
F
Failing
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFOS | 26 ppt | 4 ppt | 3/15/2023 |
| PFHxS | 22 ppt | 10 ppt | 3/15/2023 |
| PFBS | 17 ppt | — | 3/15/2023 |
| PFPeS | 13 ppt | — | 3/15/2023 |
| PFHxA | 12 ppt | — | 3/15/2023 |
| PFHxS | 9.6 ppt | 10 ppt | 3/27/2024 |
| PFBS | 9.1 ppt | — | 3/27/2024 |
| PFHxA | 8 ppt | — | 3/27/2024 |
| PFPeS | 6 ppt | — | 3/27/2024 |
| PFPeA | 4.3 ppt | — | 3/15/2023 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2025-06-04 | E. COLI | MR | No | Unaddressed |
| 2025-05-01 | Revised Total Coliform Rule | MON | No | Resolved |
| 2024-07-25 | E. COLI | MR | No | Unaddressed |
| 2024-01-01 | TTHM | MR | No | Resolved |
| 2024-01-01 | Total Haloacetic Acids (HAA5) | MR | No | Resolved |