Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
1405536
| DC | District of Columbia | District of Columbia, Rock Creek, Pierce Mill Dam | 2013 |
02070010
| Middle Potomac-Anacostia-Occoquan | established |
1405537
| DC | District of Columbia | District of Columbia, Rock Creek, Pierce Mill Dam | 2013 |
02070010
| Middle Potomac-Anacostia-Occoquan | established |