What was found in Washington Navy Yard's water
The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| TTHM | 85.63999999999993 µg/L 107% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: NAVAL STATION WASHINGTON - WNY · 16,800 people · 2017 | 1/1 | SYR4 |
| Chloroform | 58 µg/L No EPA limit set Main supplier: NAVAL STATION WASHINGTON - WNY · 16,800 people · 2016 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 51.199999999999974 µg/L 85% of the EPA limit 60 µg/L Main supplier: NAVAL STATION WASHINGTON - WNY · 16,800 people · 2017 | 1/1 | SYR4 |
| Dichloroacetic Acid | 24.5 µg/L No EPA limit set Main supplier: NAVAL STATION WASHINGTON - WNY · 16,800 people · 2016 | 1/1 | SYR4 |
| Bromodichloromethane | 24.1 µg/L No EPA limit set Main supplier: NAVAL STATION WASHINGTON - WNY · 16,800 people · 2016 | 1/1 | SYR4 |
| Trichloroacetic Acid | 14.3 µg/L No EPA limit set Main supplier: NAVAL STATION WASHINGTON - WNY · 16,800 people · 2016 | 1/1 | SYR4 |
| Lithium | 12 µg/L No EPA limit set Main supplier: NAVAL STATION WASHINGTON - WNY · 16,800 people · 2024 | 1/1 | UCMR-5 |
| Dibromochloromethane | 8 µg/L No EPA limit set Main supplier: NAVAL STATION WASHINGTON - WNY · 16,800 people · 2016 | 1/1 | SYR4 |
| Monochloroacetic Acid | 5.1 µg/L No EPA limit set Main supplier: NAVAL STATION WASHINGTON - WNY · 16,800 people · 2016 | 1/1 | SYR4 |
| Dibromoacetic Acid | 1.6 µg/L No EPA limit set Main supplier: NAVAL STATION WASHINGTON - WNY · 16,800 people · 2016 | 1/1 | SYR4 |
| Bromoform | 0.6800 µg/L No EPA limit set Main supplier: NAVAL STATION WASHINGTON - WNY · 16,800 people · 2016 | 1/1 | SYR4 |
| Pfpea | 0.0043 µg/L No EPA limit set Main supplier: NAVAL STATION WASHINGTON - WNY · 16,800 people · 2024 | 1/1 | UCMR-5 |
| Pfhxa | 0.0038 µg/L No EPA limit set Main supplier: NAVAL STATION WASHINGTON - WNY · 16,800 people · 2024 | 1/1 | UCMR-5 |
| Lead | 0.00081 mg/L 5.4% of the EPA limit 0.0150 mg/L Main supplier: NAVAL STATION WASHINGTON - WNY · 16,800 people · 2023 | 1/1 | LCR |
Water suppliers serving Washington Navy Yard
| Supplier | Population served |
|---|---|
| NAVAL STATION WASHINGTON - WNY | 16,800 |
Frequently asked questions about Washington Navy Yard tap water
Is Washington Navy Yard tap water safe to drink?
EPA testing detected 14 contaminants in the water serving Washington Navy Yard. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.
How many water suppliers serve Washington Navy Yard?
1 public water supplier report drinking-water monitoring for Washington Navy Yard, DC to the EPA. Each is listed above with its population served.
What contaminants are in Washington Navy Yard's water?
The contaminants EPA monitoring detected in Washington Navy Yard include TTHM, Chloroform, Total Haloacetic Acids (HAA5), Dichloroacetic Acid, Bromodichloromethane. The full list, with the level at the main supplier and the data source, is in the table above.
Where does this data come from?
Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.