D.c. Water And Sewer Authority
PWSID DC0000002 · Washington, Washington D.C. · serves 632,323 people · surface water source
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Fair
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFPeA | 4.7 ppt | — | 7/22/2024 |
| PFPeA | 4.4 ppt | — | 7/22/2024 |
| PFHxA | 3.1 ppt | — | 7/22/2024 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2023-01-01 | Revised Total Coliform Rule | MON | No | Resolved |
| 2023-01-01 | Surface Water Treatment Rule | MR | No | Resolved |
| 2022-12-01 | Revised Total Coliform Rule | MON | No | Resolved |
| 2022-12-01 | Surface Water Treatment Rule | MR | No | Resolved |
ZIP codes served
200012000220003200042000520006200072000820009200102001120012200132001520016200172001820019200202002220024200262002720029200302003220033200352003620037200382003920040200412004220043200442004520047200492005020052200532005520056200572005820059200602006120062200632006420065200662006720068200692007020071