Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
257969
| OR | Clatsop | Hanson Slough [near Columbia River in Oklahoma Hill] | 2006 |
17080003
| Lower Columbia-Clatskanie | established |
1396078
| OR | Columbia | Columbia River | 2000 |
17080003
| Lower Columbia-Clatskanie | established |
1467712
| WA | Clark | Burnt Bridge Creek | 2013 |
17080003
| Lower Columbia-Clatskanie | unknown |
615268
| WA | Clark | Burnt Bridge Creek, Vancouver | 2013 |
17080003
| Lower Columbia-Clatskanie | unknown |
155678
| WA | Cowlitz | Columbia River near Kalama, WA | 2002 |
17080003
| Lower Columbia-Clatskanie | established |
243116
| WA | Cowlitz | Columbia River, Carrolls Channel, shallow flats | 2002 |
17080003
| Lower Columbia-Clatskanie | established |
243117
| WA | Cowlitz | Columbia River, Sportsmens Club boat launch, Kalama | 2002 |
17080003
| Lower Columbia-Clatskanie | established |
157447
| WA | Cowlitz | Columbia River-Sportsmens Club ramp | 2002 |
17080003
| Lower Columbia-Clatskanie | established |