Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
614209
| MA | Berkshire | Westfield Brook upstream of East Windsor Rd. | 1990 |
01080206
| Westfield River | established |
614189
| MA | Berkshire | Yokum Brook, Becket. | 1983 |
01080206
| Westfield River | established |
614205
| MA | Hampden | Blandford, Bedlam Brook at Rt. 23 (a trib. to Cobble Mt. Reservoir. | 1979 |
01080206
| Westfield River | established |
614210
| MA | Hampden | Blandford, Peebles Brook below Stage Rd., 1/2 way to Pond Brook confluence. stream 09350. | 1982 |
01080206
| Westfield River | established |
614208
| MA | Hampden | Blandford, Pond Brook at Beech Hill Rd. crossing (upstream). | 1982 |
01080206
| Westfield River | established |
294560
| MA | Hampden | Congamond Lakes just S of Southwick | 1998 |
01080206
| Westfield River | established |
874316
| MA | Hampden | Littleville Lake at sampling station F7GB | 1993 |
01080206
| Westfield River | stocked |
614204
| MA | Hampden | Walker Brook, Chester. Westfield Dr. | 1985 |
01080206
| Westfield River | established |
1672348
| MA | Hampshire | [No locality description provided] | 2018 |
01080206
| Westfield River | |
1672373
| MA | Hampshire | [No locality description provided] | 2018 |
01080206
| Westfield River | |
294657
| MA | Hampshire | Littleville Lake | 1998 |
01080206
| Westfield River | established |
294780
| MA | Hampshire | Westerfield River near Huntington | 1998 |
01080206
| Westfield River | established |