Ponce Urbano
PWSID PR0003824 · Ponce, Puerto Rico · serves 113,972 people · surface water source
F
Failing
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFOS | 25.6 ppt | 4 ppt | 12/10/2023 |
| PFOS | 25 ppt | 4 ppt | 9/19/2023 |
| PFHxS | 16.7 ppt | 10 ppt | 9/19/2023 |
| PFHxS | 13.3 ppt | 10 ppt | 12/10/2023 |
| PFOS | 13.3 ppt | 4 ppt | 12/5/2023 |
| PFOS | 12.9 ppt | 4 ppt | 6/24/2023 |
| PFOS | 12.7 ppt | 4 ppt | 6/22/2023 |
| PFOS | 12.5 ppt | 4 ppt | 12/22/2023 |
| PFOS | 12.5 ppt | 4 ppt | 6/27/2023 |
| PFOS | 12.4 ppt | 4 ppt | 12/6/2023 |
| PFOS | 12.1 ppt | 4 ppt | 6/27/2023 |
| PFOS | 12.1 ppt | 4 ppt | 12/5/2023 |
| PFOS | 11.9 ppt | 4 ppt | 12/6/2023 |
| PFOS | 11.5 ppt | 4 ppt | 12/14/2023 |
| PFOS | 11.4 ppt | 4 ppt | 6/30/2023 |
| PFOS | 11.3 ppt | 4 ppt | 6/24/2023 |
| PFOS | 11 ppt | 4 ppt | 6/22/2023 |
| PFOS | 10.7 ppt | 4 ppt | 9/25/2023 |
| PFOS | 10.6 ppt | 4 ppt | 12/6/2023 |
| PFOS | 10.2 ppt | 4 ppt | 6/30/2023 |
| PFOS | 10.1 ppt | 4 ppt | 12/5/2023 |
| PFOS | 9.6 ppt | 4 ppt | 6/20/2023 |
| PFOS | 9.4 ppt | 4 ppt | 12/22/2023 |
| PFOS | 9.3 ppt | 4 ppt | 12/13/2023 |
| PFOS | 9.2 ppt | 4 ppt | 6/30/2023 |
| PFBS | 9.2 ppt | — | 6/30/2023 |
| PFOS | 9.2 ppt | 4 ppt | 12/22/2023 |
| PFOS | 9.1 ppt | 4 ppt | 6/24/2023 |
| PFBS | 9 ppt | — | 6/27/2023 |
| PFBS | 8.9 ppt | — | 12/14/2023 |
| PFOS | 8.3 ppt | 4 ppt | 6/30/2023 |
| PFBS | 7.6 ppt | — | 12/7/2023 |
| PFPeA | 7.4 ppt | — | 12/7/2023 |
| PFBS | 7.3 ppt | — | 12/5/2023 |
| PFHxA | 7.2 ppt | — | 12/7/2023 |
| PFBA | 7.1 ppt | — | 12/22/2023 |
| PFBS | 6.8 ppt | — | 12/5/2023 |
| PFOS | 6.6 ppt | 4 ppt | 6/24/2023 |
| PFBS | 6.6 ppt | — | 6/22/2023 |
| PFBS | 6.5 ppt | — | 6/24/2023 |
| PFBS | 6.4 ppt | — | 9/19/2023 |
| PFOS | 6.4 ppt | 4 ppt | 12/7/2023 |
| PFOS | 6.3 ppt | 4 ppt | 6/22/2023 |
| PFBS | 6.3 ppt | — | 9/25/2023 |
| PFOS | 6.2 ppt | 4 ppt | 12/7/2023 |
| PFOS | 6.2 ppt | 4 ppt | 12/7/2023 |
| PFOS | 6.2 ppt | 4 ppt | 6/22/2023 |
| PFOS | 6.2 ppt | 4 ppt | 12/22/2023 |
| PFBS | 6.1 ppt | — | 12/22/2023 |
| PFBA | 6.1 ppt | — | 12/7/2023 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2024-01-01 | Interim Enhanced Surface Water Treatment Rule | TT | Yes | Resolved |
| 2024-01-01 | Nitrate | MR | No | Resolved |
| 2023-08-01 | Interim Enhanced Surface Water Treatment Rule | TT | Yes | Resolved |
| 2023-08-01 | Interim Enhanced Surface Water Treatment Rule | TT | Yes | Resolved |
| 2023-07-01 | Interim Enhanced Surface Water Treatment Rule | TT | Yes | Resolved |
| 2022-12-01 | Surface Water Treatment Rule | MR | No | Resolved |
| 2022-10-01 | Interim Enhanced Surface Water Treatment Rule | TT | Yes | Resolved |
| 2022-10-01 | Interim Enhanced Surface Water Treatment Rule | TT | Yes | Resolved |
| 2022-10-01 | Surface Water Treatment Rule | MR | No | Resolved |
| 2022-09-01 | Interim Enhanced Surface Water Treatment Rule | TT | Yes | Resolved |
| 2022-09-01 | Interim Enhanced Surface Water Treatment Rule | TT | Yes | Resolved |
| 2022-09-01 | Interim Enhanced Surface Water Treatment Rule | TT | Yes | Resolved |
| 2022-09-01 | Interim Enhanced Surface Water Treatment Rule | TT | Yes | Resolved |
| 2022-08-01 | Interim Enhanced Surface Water Treatment Rule | TT | Yes | Resolved |
| 2022-01-01 | Arsenic | MR | No | Resolved |
| 2022-01-01 | Barium | MR | No | Resolved |
| 2022-01-01 | Cadmium | MR | No | Resolved |
| 2022-01-01 | Chromium | MR | No | Resolved |
| 2022-01-01 | CYANIDE | MR | No | Resolved |
| 2022-01-01 | Mercury | MR | No | Resolved |
| 2022-01-01 | Antimony, Total | MR | No | Resolved |
| 2022-01-01 | Beryllium, Total | MR | No | Resolved |
| 2022-01-01 | Thallium, Total | MR | No | Resolved |
| 2022-01-01 | Selenium | MR | No | Resolved |
| 2022-01-01 | Arsenic | MR | No | Resolved |
| 2022-01-01 | Barium | MR | No | Resolved |
| 2022-01-01 | Cadmium | MR | No | Resolved |
| 2022-01-01 | Chromium | MR | No | Resolved |
| 2022-01-01 | CYANIDE | MR | No | Resolved |
| 2022-01-01 | Mercury | MR | No | Resolved |
| 2022-01-01 | Antimony, Total | MR | No | Resolved |
| 2022-01-01 | Beryllium, Total | MR | No | Resolved |
| 2022-01-01 | Thallium, Total | MR | No | Resolved |
| 2022-01-01 | Selenium | MR | No | Resolved |