Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
52421
| VA | | Potomac River at Boling Field (VA)[Washington DC] | 1974 |
02070010
| Middle Potomac-Anacostia-Occoquan | established |
52422
| VA | Alexandria | Potomac River near Jones Point Landing (just north of I-95 bridge in Alexandria, VA) | 1974 |
02070010
| Middle Potomac-Anacostia-Occoquan | established |
52423
| VA | Fairfax | Potomac River 1 mi S of Alexandria, VA | 1974 |
02070010
| Middle Potomac-Anacostia-Occoquan | established |
52424
| VA | Fairfax | Potomac River 1.5 mi above Mt. Vernon, VA | 1974 |
02070010
| Middle Potomac-Anacostia-Occoquan | established |