Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
241990
| OR | Gilliam | Columbia River | 1946 |
17070101
| Middle Columbia-Lake Wallula | established |
241987
| OR | Hood River | Columbia River | 1946 |
17070105
| Middle Columbia-Hood | established |
858927
| OR | Hood River | Mount Hood North | 1997 |
17070105
| Middle Columbia-Hood | established |
241991
| OR | Morrow | Columbia River | 1946 |
17070101
| Middle Columbia-Lake Wallula | established |
1735252
| OR | Multnomah | Omitted by NAS | 2006 |
17070105
| Middle Columbia-Hood | unknown |
1735250
| OR | Multnomah | Omitted by NAS | 2007 |
17070105
| Middle Columbia-Hood | unknown |
1735228
| OR | Multnomah | Omitted by NAS | 2008 |
17070105
| Middle Columbia-Hood | unknown |
1735209
| OR | Multnomah | Omitted by NAS | 2010 |
17070105
| Middle Columbia-Hood | unknown |
1735210
| OR | Multnomah | Omitted by NAS | 2011 |
17070105
| Middle Columbia-Hood | unknown |
1735324
| OR | Multnomah | Omitted by NAS | 2012 |
17070105
| Middle Columbia-Hood | unknown |
1735325
| OR | Multnomah | Omitted by NAS | 2013 |
17070105
| Middle Columbia-Hood | unknown |
241989
| OR | Sherman | Columbia River | 1946 |
17070101
| Middle Columbia-Lake Wallula | established |
241992
| OR | Umatilla | Columbia River | 1946 |
17070101
| Middle Columbia-Lake Wallula | established |
241993
| OR | Umatilla | Umatilla River | 1946 |
17070101
| Middle Columbia-Lake Wallula | established |
241988
| OR | Wasco | Columbia River | 1946 |
17070105
| Middle Columbia-Hood | established |