Ashburn / Northern Virginia
Potomac River (Washington, DC) · as of Sep 1, 2026
Water-supply risk score
13.4/100
Low
What drives this score
| Component | Level | Value |
|---|---|---|
| Drought severity (USDM) | 37.6 | |
| Streamflow deficit | 0.0 | |
| Withdrawal pressure | 8.4 |
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