Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
41772
| OR | | Willamette River sloughs, from Wheatland Ferry to mouth of Santiam River. | 2001 |
17090007
| Middle Willamette | established |
297406
| OR | | Willamette River sloughs, from Wheatland Ferry to mouth of Santiam River. | 2009 |
17090007
| Middle Willamette | established |
297412
| OR | | Willamette River sloughs, from Wheatland Ferry to mouth of Santiam River. | 2013 |
17090007
| Middle Willamette | established |
40839
| OR | Clackamas | Willamette River sloughs, from Milwaukie to mouth of Pudding River | 2001 |
17090007
| Middle Willamette | established |
40843
| OR | Clackamas | Willamette River sloughs, from Milwaukie to mouth of Pudding River | 2001 |
17090007
| Middle Willamette | established |
274030
| OR | Clackamas | Willamette River sloughs, from Milwaukie to mouth of Pudding River | 2009 |
17090007
| Middle Willamette | established |
295753
| OR | Clackamas | Willamette River sloughs, from Milwaukie to mouth of Pudding River | 2009 |
17090007
| Middle Willamette | established |
295759
| OR | Clackamas | Willamette River sloughs, from Milwaukie to mouth of Pudding River | 2013 |
17090007
| Middle Willamette | established |
41310
| OR | Marion | Mission Lake, Willamette Mission State Park, 2 miles southeast of Wheatland ferry landing. | 2001 |
17090007
| Middle Willamette | established |
297138
| OR | Marion | Mission Lake, Willamette Mission State Park, 2 miles southeast of Wheatland ferry landing. | 2009 |
17090007
| Middle Willamette | established |
297142
| OR | Marion | Mission Lake, Willamette Mission State Park, 2 miles southeast of Wheatland ferry landing. | 2013 |
17090007
| Middle Willamette | established |
40557
| OR | Polk | Willamette River at Salem | 1893 |
17090007
| Middle Willamette | established |
41495
| OR | Yamhill | Willamette River sloughs, from Newberg to Wheatland Ferry. | 2001 |
17090007
| Middle Willamette | established |
299936
| OR | Yamhill | Willamette River sloughs, from Newberg to Wheatland Ferry. | 2009 |
17090007
| Middle Willamette | established |
299942
| OR | Yamhill | Willamette River sloughs, from Newberg to Wheatland Ferry. | 2013 |
17090007
| Middle Willamette | established |