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 |
243057
| OR | Columbia | Multnomah Channel, Sauvie Island-Gilbert River Boat Ramp | 2002 |
17090012
| Lower Willamette | established |
243714
| OR | Hood River | Columbia River, mid channel north of Hood River. | 2006 |
17070105
| Middle Columbia-Hood | established |
243055
| OR | Multnomah | Columbia Slough, Incendiary Bridge | 2002 |
17090012
| Lower Willamette | established |
243056
| OR | Multnomah | Columbia Slough, Kelly Point Park | 2002 |
17090012
| Lower Willamette | established |