Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
1523821
| WA | Lewis | Blue Creek, mouth of fish discharge channel into Blue Creek | 2018 |
17080005
| Lower Cowlitz | unknown |
1523824
| WA | Lewis | Cowlitz River Fish Hatchery, at fish discharge channel | 2018 |
17080005
| Lower Cowlitz | established |
1523822
| WA | Lewis | Cowlitz River, mouth of fish discharge channel into Cowlitz River | 2018 |
17080005
| Lower Cowlitz | established |
1474254
| WA | Skagit | Indian Slough [W of Burlington] | 2018 |
17110002
| Strait of Georgia | unknown |
1657477
| WA | Snohomish | Steamboat Slough, Snohomish Estuary near Marysville | 2018 |
17110011
| Snohomish | established |
1474252
| WA | Whatcom | Lake Padden [S of Bellingham] | 2018 |
17110004
| Nooksack | unknown |