Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
1654899
| MD | Anne Arundel | Railroad Bed Trail, Lothian, MD 20711, USA | 2018 |
02060006
| Patuxent | established |
1654894
| MD | Baltimore | 3100 Childs St, Baltimore, MD, US | 2018 |
02060003
| Gunpowder-Patapsco | established |
1654896
| MD | Calvert | 11446 11630 Mill Bridge Rd, Lusby, MD, US | 2018 |
02060006
| Patuxent | established |
1468740
| MD | Calvert | Kings Landing Park | 2018 |
02060006
| Patuxent | established |
1467166
| MD | Montgomery | Rock Creek Park | 2018 |
02070010
| Middle Potomac-Anacostia-Occoquan | established |