Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
1397593
| MD | Montgomery | Chesapeake and Ohio Canal @ Carroll Branch mouth | 2014 |
02070008
| Middle Potomac-Catoctin | unknown |
1725592
| MD | Prince George's | College Park, Duck Pond Park | 2014 |
02070010
| Middle Potomac-Anacostia-Occoquan | |
1320965
| MD | Prince George's | Duck Pond Park | 2014 |
02070010
| Middle Potomac-Anacostia-Occoquan | established |
1670541
| MD | Prince George's | University Hills Park pond | 2021 |
02070010
| Middle Potomac-Anacostia-Occoquan | established |