Grand County Water No 1
PWSID CO0125323 · Winter Park, Colorado · serves 5,400 people · surface water source
D
Poor
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFBA | 11.8 ppt | — | 4/10/2024 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2026-07-01 | Lead and Copper Rule | MR | No | Resolved |
| 2026-06-01 | Revised Total Coliform Rule | MON | No | Resolved |
| 2026-06-01 | Surface Water Treatment Rule | MR | No | Resolved |
| 2026-05-01 | Surface Water Treatment Rule | MR | No | Resolved |
| 2026-05-01 | Surface Water Treatment Rule | MR | No | Resolved |
| 2026-05-01 | Interim Enhanced Surface Water Treatment Rule | MR | No | Resolved |
| 2026-05-01 | Interim Enhanced Surface Water Treatment Rule | MR | No | Resolved |
| 2026-04-01 | Chlorine | MR | No | Resolved |
| 2026-02-01 | E. COLI | MR | No | Resolved |
| 2026-02-01 | E. COLI | MR | No | Resolved |
| 2025-12-01 | E. COLI | MR | No | Resolved |
| 2025-12-01 | E. COLI | MR | No | Resolved |
| 2025-01-01 | Fluoride | MR | No | Archived |
| 2025-01-01 | Fluoride | MR | No | Archived |
| 2025-01-01 | Arsenic | MR | No | Archived |
| 2025-01-01 | Barium | MR | No | Archived |
| 2025-01-01 | Cadmium | MR | No | Archived |
| 2025-01-01 | Chromium | MR | No | Archived |
| 2025-01-01 | Mercury | MR | No | Archived |
| 2025-01-01 | Nickel | MR | No | Archived |
| 2025-01-01 | Antimony, Total | MR | No | Archived |
| 2025-01-01 | Beryllium, Total | MR | No | Archived |
| 2025-01-01 | Thallium, Total | MR | No | Archived |
| 2025-01-01 | Selenium | MR | No | Archived |
| 2025-01-01 | Arsenic | MR | No | Archived |
| 2025-01-01 | Barium | MR | No | Archived |
| 2025-01-01 | Cadmium | MR | No | Archived |
| 2025-01-01 | Chromium | MR | No | Archived |
| 2025-01-01 | Mercury | MR | No | Archived |
| 2025-01-01 | Nickel | MR | No | Archived |
| 2025-01-01 | Antimony, Total | MR | No | Archived |
| 2025-01-01 | Beryllium, Total | MR | No | Archived |
| 2025-01-01 | Thallium, Total | MR | No | Archived |
| 2025-01-01 | Selenium | MR | No | Archived |
| 2025-01-01 | Nitrate | MR | No | Archived |
| 2025-01-01 | Nitrate | MR | No | Archived |
| 2024-10-01 | Lead and Copper Rule | MR | No | Resolved |
| 2024-10-01 | TTHM | MR | No | Resolved |
| 2024-10-01 | Total Haloacetic Acids (HAA5) | MR | No | Resolved |
| 2024-07-01 | Consumer Confidence Rule | Other | No | Resolved |
| 2024-04-01 | Interim Enhanced Surface Water Treatment Rule | TT | Yes | Resolved |
| 2024-02-01 | Revised Total Coliform Rule | MON | No | Resolved |
| 2024-02-01 | Surface Water Treatment Rule | MR | No | Resolved |
| 2024-01-01 | Chlorine | MR | No | Resolved |
| 2023-11-01 | Surface Water Treatment Rule | MR | No | Resolved |
| 2023-11-01 | Interim Enhanced Surface Water Treatment Rule | MR | No | Resolved |
| 2023-10-01 | Lead and Copper Rule | MR | No | Resolved |
| 2023-10-01 | Revised Total Coliform Rule | MON | No | Resolved |
| 2023-10-01 | Chlorine | MR | No | Resolved |
| 2023-10-01 | Surface Water Treatment Rule | MR | No | Resolved |
| 2023-01-01 | Arsenic | MR | No | Resolved |
| 2023-01-01 | Barium | MR | No | Resolved |
| 2023-01-01 | Cadmium | MR | No | Resolved |
| 2023-01-01 | Chromium | MR | No | Resolved |
| 2023-01-01 | Mercury | MR | No | Resolved |
| 2023-01-01 | Nickel | MR | No | Resolved |
| 2023-01-01 | Antimony, Total | MR | No | Resolved |
| 2023-01-01 | Beryllium, Total | MR | No | Resolved |
| 2023-01-01 | Thallium, Total | MR | No | Resolved |
| 2023-01-01 | Selenium | MR | No | Resolved |
| 2023-01-01 | Arsenic | MR | No | Resolved |
| 2023-01-01 | Barium | MR | No | Resolved |
| 2023-01-01 | Cadmium | MR | No | Resolved |
| 2023-01-01 | Chromium | MR | No | Resolved |
| 2023-01-01 | Mercury | MR | No | Resolved |
| 2023-01-01 | Nickel | MR | No | Resolved |
| 2023-01-01 | Antimony, Total | MR | No | Resolved |
| 2023-01-01 | Beryllium, Total | MR | No | Resolved |
| 2023-01-01 | Thallium, Total | MR | No | Resolved |
| 2023-01-01 | Selenium | MR | No | Resolved |
| 2022-12-08 | Public Notice | Other | No | Resolved |
| 2022-11-01 | Revised Total Coliform Rule | MON | No | Resolved |
| 2022-11-01 | Surface Water Treatment Rule | MR | No | Resolved |
| 2022-10-01 | Chlorine | MR | No | Resolved |