Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
243713
| WA | Benton | Columbia River, Hanford Reach, at East White Bluffs. | 2006 |
17020016
| Upper Columbia-Priest Rapids | established |
243058
| WA | Cowlitz | Columbia River, Dike Road, North Woodland | 2002 |
17080003
| Lower Columbia-Clatskanie | established |
1395875
| WA | Cowlitz | Martin Slough | 1999 |
17080003
| Lower Columbia-Clatskanie | established |
243715
| WA | Skamania | Columbia River, SE of Carson River Valley. | 2006 |
17070105
| Middle Columbia-Hood | established |
161236
| WA | Snohomish | Snohomish River Estuary | 1997 |
17110019
| Puget Sound | established |
243712
| WA | Whitman | Snake River, Lower Granite Reservoir, Clarkston | 2006 |
17060107
| Lower Snake-Tucannon | established |