Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
268623
| CT | | Connecticut River drainage | 1986 |
01080205
| Outlet Connecticut River | established |
1713605
| CT | Hartford | Connecticut River | 2022 |
01080205
| Outlet Connecticut River | |
30922
| CT | Middlesex | Connecticut River near Middletown | 1980 |
01080205
| Outlet Connecticut River | established |
31003
| CT | Middlesex | Scovill Reservoir, Connecticut drainage | 1996 |
01080205
| Outlet Connecticut River | established |
34890
| MA | | Connecticut River drainage | 1992 |
01080200
| Lower Connecticut | established |
164077
| MA | Franklin | Silvio O. Conte National Fish and Wildlife Refuge | 2005 |
01080201
| Ashuelot River-Connecticut River | established |
34972
| MA | Hampshire | Hadley, Connecticut River 1 mile below Rt. 9 bridge | 1992 |
01080201
| Ashuelot River-Connecticut River | established |
34970
| MA | Hampshire | Nashawannuck Pond , Easthampton | 1985 |
01080201
| Ashuelot River-Connecticut River | established |