Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
1322106
| DC | District of Columbia | Chesapeake and Ohio Canal, Georgetown, Foxhall Road and Canal Road (below) | 2009 |
02070010
| Middle Potomac-Anacostia-Occoquan | established |
1435800
| DC | District of Columbia | Potomac River | 1993 |
02070010
| Middle Potomac-Anacostia-Occoquan | established |
1418836
| DC | District of Columbia | Potomac River mile 95.5 in the District of Columbia | 1978 |
02070010
| Middle Potomac-Anacostia-Occoquan | established |
1463417
| DC | District of Columbia | ROCK CREEK | 2004 |
02070010
| Middle Potomac-Anacostia-Occoquan | established |