Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
1678082
| MA | Middlesex | Pond Path, Concord, MA 01742, USA | 2018 |
01070005
| Concord River | |
1671347
| MA | Middlesex | Walden Pond State Reservation, Concord, MA, US | 2017 |
01070005
| Concord River | |
1679040
| MA | Middlesex | Walden Pond State Reservation, Concord, MA, US | 2020 |
01070005
| Concord River | |
611987
| MA | Middlesex | Walden Pond, Concord | 1969 |
01070005
| Concord River | established |
1672142
| MA | Middlesex | Walden Pond, Concord, MA, US | 2018 |
01070005
| Concord River | |
294513
| MA | Worcester | A-1 Site | 1998 |
01070005
| Concord River | established |