Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
255090
| WA | Grays Harbor | Chehalis River/Garrard Creek | 2007 |
17100103
| Upper Chehalis | established |
255094
| WA | Lewis | Bunker Creek | 2007 |
17100103
| Upper Chehalis | established |
255095
| WA | Lewis | Chehalis River/Jones Creek | 2007 |
17100103
| Upper Chehalis | established |
1710268
| WA | Lewis | Harrison Ave, Centralia, WA. | 2023 |
17100103
| Upper Chehalis | |
255091
| WA | Lewis | Independence Creek | 2007 |
17100103
| Upper Chehalis | established |
255092
| WA | Lewis | Lincoln Creek | 2007 |
17100103
| Upper Chehalis | established |
255093
| WA | Lewis | Skookumchuck River (lower) | 2007 |
17100103
| Upper Chehalis | established |
255096
| WA | Lewis | Stillman Creek | 2007 |
17100103
| Upper Chehalis | established |
255073
| WA | Thurston | Black River | 2007 |
17100103
| Upper Chehalis | established |
1735370
| WA | Thurston | Omitted by NAS | 2007 |
17100103
| Upper Chehalis | unknown |
1735371
| WA | Thurston | Omitted by NAS | 2007 |
17100103
| Upper Chehalis | unknown |
255076
| WA | Thurston | Waddell Creek | 2007 |
17100103
| Upper Chehalis | established |