Orange-Alamance Water System
PWSID NC0368020 · Mebane, North Carolina · serves 9,223 people · surface water source
F
Failing
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFOS | 12.2 ppt | 4 ppt | 1/21/2026 |
| PFOS | 11.8 ppt | 4 ppt | 10/15/2025 |
| PFOS | 10.8 ppt | 4 ppt | 4/9/2025 |
| PFOA | 9.4 ppt | 4 ppt | 4/9/2025 |
| PFOA | 9.4 ppt | 4 ppt | 1/21/2026 |
| PFOA | 8.2 ppt | 4 ppt | 10/15/2025 |
| PFOS | 5.3 ppt | 4 ppt | 2/23/2026 |
| PFOA | 5.3 ppt | 4 ppt | 2/23/2026 |
| PFHxA | 4.1 ppt | — | 1/21/2026 |
| PFHxA | 4 ppt | — | 10/15/2025 |
| PFHxA | 3.9 ppt | — | 4/9/2025 |
| PFPeA | 3.9 ppt | — | 10/15/2025 |
| PFPeA | 3.4 ppt | — | 1/21/2026 |
| PFHpA | 3.3 ppt | — | 4/9/2025 |
| PFHpA | 3.2 ppt | — | 1/21/2026 |
| PFHpA | 3 ppt | — | 10/15/2025 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2026-06-01 | Interim Enhanced Surface Water Treatment Rule | MR | No | Archived |
| 2026-04-01 | CARBON, TOTAL | TT | Yes | Archived |
| 2026-03-02 | Public Notice | Other | No | Resolved |
| 2026-01-01 | Lead and Copper Rule | MR | No | Resolved |
| 2026-01-01 | CARBON, TOTAL | TT | Yes | Archived |
| 2026-01-01 | Revised Total Coliform Rule | MON | No | Resolved |
| 2025-10-01 | Lead and Copper Rule | MR | No | Addressed |
| 2025-10-01 | CARBON, TOTAL | TT | Yes | Archived |
| 2025-09-11 | Revised Total Coliform Rule | RPT | No | Resolved |
| 2025-07-01 | CARBON, TOTAL | TT | Yes | Archived |
| 2024-10-01 | Total Haloacetic Acids (HAA5) | MR | No | Resolved |
| 2024-10-01 | CARBON, TOTAL | MR | No | Resolved |
| 2024-07-01 | Consumer Confidence Rule | Other | No | Resolved |
| 2024-01-01 | 1,2,4-Trichlorobenzene | MR | No | Resolved |
| 2024-01-01 | cis-1,2-Dichloroethylene | MR | No | Resolved |
| 2024-01-01 | Xylenes, Total | MR | No | Resolved |
| 2024-01-01 | DICHLOROMETHANE | MR | No | Resolved |
| 2024-01-01 | o-Dichlorobenzene | MR | No | Resolved |
| 2024-01-01 | p-Dichlorobenzene | MR | No | Resolved |
| 2024-01-01 | Vinyl chloride | MR | No | Resolved |
| 2024-01-01 | 1,1-Dichloroethylene | MR | No | Resolved |
| 2024-01-01 | trans-1,2-Dichloroethylene | MR | No | Resolved |
| 2024-01-01 | 1,2-Dichloroethane | MR | No | Resolved |
| 2024-01-01 | 1,1,1-Trichloroethane | MR | No | Resolved |
| 2024-01-01 | Carbon tetrachloride | MR | No | Resolved |
| 2024-01-01 | 1,2-Dichloropropane | MR | No | Resolved |
| 2024-01-01 | Trichloroethylene | MR | No | Resolved |
| 2024-01-01 | 1,1,2-Trichloroethane | MR | No | Resolved |
| 2024-01-01 | Tetrachloroethylene | MR | No | Resolved |
| 2024-01-01 | CHLOROBENZENE | MR | No | Resolved |
| 2024-01-01 | Benzene | MR | No | Resolved |
| 2024-01-01 | Toluene | MR | No | Resolved |
| 2024-01-01 | Ethylbenzene | MR | No | Resolved |
| 2024-01-01 | Styrene | MR | No | Resolved |
| 2024-01-01 | Arsenic | MR | No | Resolved |
| 2024-01-01 | Barium | MR | No | Resolved |
| 2024-01-01 | Cadmium | MR | No | Resolved |
| 2024-01-01 | Chromium | MR | No | Resolved |
| 2024-01-01 | CYANIDE | MR | No | Resolved |
| 2024-01-01 | Fluoride | MR | No | Resolved |
| 2024-01-01 | Mercury | MR | No | Resolved |
| 2024-01-01 | Nickel | MR | No | Resolved |
| 2024-01-01 | Antimony, Total | MR | No | Resolved |
| 2024-01-01 | Beryllium, Total | MR | No | Resolved |
| 2024-01-01 | Thallium, Total | MR | No | Resolved |
| 2024-01-01 | Selenium | MR | No | Resolved |
| 2024-01-01 | Nitrate | MR | No | Resolved |
| 2023-07-01 | Consumer Confidence Rule | Other | No | Resolved |
| 2023-04-01 | Revised Total Coliform Rule | RPT | No | Resolved |
| 2023-03-11 | Revised Total Coliform Rule | RPT | No | Resolved |
| 2023-01-01 | Lead and Copper Rule | MR | No | Resolved |
| 2022-08-01 | Revised Total Coliform Rule | MON | No | Resolved |
| 2022-07-01 | Chloramine | MR | No | Resolved |