Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
243059
| OR | Clatsop | Columbia River, Blind Slough, Cathlamet Bay. | 2002 |
17080006
| Lower Columbia | established |
243060
| OR | Clatsop | Columbia River, near Russian Island, Green Marker 15, high pools | 2002 |
17080006
| Lower Columbia | established |
1395903
| OR | Clatsop | Marsh Island Creek | 1999 |
17080006
| Lower Columbia | established |
1395889
| OR | Columbia | Clatskanie River | 1999 |
17080003
| Lower Columbia-Clatskanie | 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 |