Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
41331
| OR | Morrow | John Day Pool (Lake Umatilla), includes John Day Arm and Willow Creek Arm, on Columbia River behind John Day dam. | 2001 |
17070101
| Middle Columbia-Lake Wallula | established |
297245
| OR | Morrow | John Day Pool (Lake Umatilla), includes John Day Arm and Willow Creek Arm, on Columbia River behind John Day dam. | 2009 |
17070101
| Middle Columbia-Lake Wallula | established |
297255
| OR | Morrow | John Day Pool (Lake Umatilla), includes John Day Arm and Willow Creek Arm, on Columbia River behind John Day dam. | 2013 |
17070101
| Middle Columbia-Lake Wallula | established |
41925
| OR | Sherman | Columbia River up from John Day Dam | 1990 |
17070101
| Middle Columbia-Lake Wallula | established |
41393
| OR | Sherman | John Day Pool, on Columbia River behind John Day Dam (Sherman, Gilliam, Morrow, and Umatilla Counties). | 2001 |
17070101
| Middle Columbia-Lake Wallula | established |
297432
| OR | Sherman | John Day Pool, on Columbia River behind John Day Dam (Sherman, Gilliam, Morrow, and Umatilla Counties). | 2009 |
17070101
| Middle Columbia-Lake Wallula | established |
297440
| OR | Sherman | John Day Pool, on Columbia River behind John Day Dam (Sherman, Gilliam, Morrow, and Umatilla Counties). | 2013 |
17070101
| Middle Columbia-Lake Wallula | established |
41441
| OR | Umatilla | McNary Pool (Lake Wallula), on Columbia River above McNary Dam | 2001 |
17070101
| Middle Columbia-Lake Wallula | established |
297556
| OR | Umatilla | McNary Pool (Lake Wallula), on Columbia River above McNary Dam | 2009 |
17070101
| Middle Columbia-Lake Wallula | established |
297565
| OR | Umatilla | McNary Pool (Lake Wallula), on Columbia River above McNary Dam | 2013 |
17070101
| Middle Columbia-Lake Wallula | established |