Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
268193
| DE | | Upper Chesapeake (HUC6) non-specific | 1981 |
02060000
| Upper Chesapeake | established |
35130
| MD | | Upper Chesapeake (HUC6) non-specific | 1980 |
02060000
| Upper Chesapeake | established |
268194
| MD | | Upper Chesapeake (HUC6) non-specific | 1981 |
02060000
| Upper Chesapeake | established |
1406171
| MD | Cecil | Mill Creek, tributary of Chesapeake Bay, 1.4 mi NE of Susquehanna River, town of Perryville at US Hwy 40. | 1977 |
02060002
| Chester-Sassafras | established |
1670668
| MD | Harford | [No locality description provided] | 2014 |
02060003
| Gunpowder-Patapsco | |
1677102
| MD | Montgomery | [No locality description provided] | 2021 |
02060006
| Patuxent | |