Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
4525
| WA | | Columbia River, lower | 1996 |
17080003
| Lower Columbia-Clatskanie | established |
886084
| WA | Clark | Salmon Creek Greenway Trail | 2015 |
17080003
| Lower Columbia-Clatskanie | established |
879784
| WA | Clark | Vancouver Lake Park | 2015 |
17080003
| Lower Columbia-Clatskanie | established |
877564
| WA | Cowlitz | Columbia River at Deer Island (RKm 126.6) | 1996 |
17080003
| Lower Columbia-Clatskanie | established |
877562
| WA | Wahkiakum | Columbia River at Puget Island (RKm 59.5) | 1996 |
17080003
| Lower Columbia-Clatskanie | established |