Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
268697
| MA | | Merrimack River drainage | 1986 |
01070002
| Winnipesaukee River | established |
34938
| MA | Middlesex | Crooked Springs Brook, Chelmsford | 1987 |
01070006
| Merrimack River | established |
37820
| NH | | Merrimack River [Location approximate, hand plotted with in HUC] | 1973 |
01070006
| Merrimack River | established |
37818
| NH | | Pemigewasset River [Location approximate, hand plotted with in HUC] | 1973 |
01070001
| Pemigewasset River | established |
37819
| NH | Belknap-Merrimack | Suncook River | 1973 |
01070006
| Merrimack River | established |
37817
| NH | Grafton | Cockermouth River [Location approximate, hand plotted] | 1973 |
01070001
| Pemigewasset River | established |
1522973
| NH | Grafton | Permigewasset R, at Smith R (T25), 2 mi S of Bristol, elev. 315', Belknap, Grafton, & Merrimack counties; * | 1938 |
01070001
| Pemigewasset River | unknown |
1522849
| NH | Merrimack | Merrimack River dst Franklin WWTP | 2009 |
01070006
| Merrimack River | unknown |
1522947
| NH | Merrimack | Merrimack River ust Seawall Falls Road | 2009 |
01070006
| Merrimack River | unknown |