City Of Weslaco
PWSID TX1080011 · Weslaco, Texas · serves 40,033 people · surface water source
F
Failing
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFHxA | 8.6 ppt | — | 2/19/2025 |
| PFPeA | 8.4 ppt | — | 2/19/2025 |
| PFBA | 7.6 ppt | — | 5/6/2025 |
| PFBA | 6.3 ppt | — | 9/2/2025 |
| PFHxA | 6.2 ppt | — | 9/2/2025 |
| PFOS | 5.9 ppt | 4 ppt | 2/19/2025 |
| PFPeA | 5.9 ppt | — | 9/2/2025 |
| PFHxS | 5.8 ppt | 10 ppt | 2/19/2025 |
| PFOS | 5.1 ppt | 4 ppt | 5/6/2025 |
| PFPeA | 5.1 ppt | — | 5/6/2025 |
| PFOS | 5 ppt | 4 ppt | 9/2/2025 |
| PFHxA | 4.8 ppt | — | 5/6/2025 |
| PFHxS | 4.1 ppt | 10 ppt | 5/6/2025 |
| PFHpA | 3.6 ppt | — | 2/19/2025 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2026-04-02 | Public Notice | Other | No | Unaddressed |
| 2025-05-01 | Public Notice | Other | No | Unaddressed |
| 2024-10-17 | LEAD AND COPPER RULE REVISIONS | TT | Yes | Unaddressed |
| 2024-10-17 | LEAD AND COPPER RULE REVISIONS | RPT | No | Unaddressed |
| 2024-05-31 | Public Notice | Other | No | Resolved |
| 2023-01-01 | TTHM | MR | No | Resolved |
| 2023-01-01 | Total Haloacetic Acids (HAA5) | MR | No | Resolved |
| 2022-07-01 | Consumer Confidence Rule | Other | No | Resolved |