Cottonwood Wsd
PWSID CO0118020 · Englewood, Colorado · serves 10,867 people · surface water source
F
Failing
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFPeA | 6.2 ppt | — | 9/11/2023 |
| PFPeA | 5.8 ppt | — | 3/7/2023 |
| PFBA | 5.6 ppt | — | 4/3/2023 |
| PFHxA | 5.4 ppt | — | 9/11/2023 |
| PFHxA | 4.9 ppt | — | 3/7/2023 |
| PFBS | 4.7 ppt | — | 9/11/2023 |
| PFBS | 4.5 ppt | — | 3/7/2023 |
| PFPeA | 4.3 ppt | — | 4/3/2023 |
| PFOA | 4 ppt | 4 ppt | 9/11/2023 |
| PFHxA | 3.2 ppt | — | 4/3/2023 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2026-06-01 | Revised Total Coliform Rule | MON | No | Archived |
| 2026-04-01 | Chlorine | MR | No | Archived |
| 2025-07-01 | Lead and Copper Rule | MR | No | Resolved |
| 2025-03-24 | Public Notice | Other | No | Resolved |
| 2024-10-01 | TTHM | MR | No | Resolved |
| 2024-10-01 | Total Haloacetic Acids (HAA5) | MR | No | Resolved |
| 2023-07-01 | Consumer Confidence Rule | Other | No | Resolved |
| 2022-07-01 | TTHM | MR | No | Resolved |
| 2022-07-01 | Total Haloacetic Acids (HAA5) | MR | No | Resolved |