Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
279547
| DC | | fish ponds at Washington DC | 1878 |
02070010
| Middle Potomac-Anacostia-Occoquan | established |
31037
| DC | | fish ponds at Washington DC | 1903 |
02070010
| Middle Potomac-Anacostia-Occoquan | unknown |
31041
| DC | | Potomac River, whole length | 1994 |
02070008
| Middle Potomac-Catoctin | established |
158316
| DC | District of Columbia | Rock Creek Park | 1999 |
02070010
| Middle Potomac-Anacostia-Occoquan | established |