Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
239121
| WA | | Columbia River | 1905 |
17020010
| Upper Columbia-Entiat | established |
238996
| WA | | Columbia River, middle | 2003 |
17070105
| Middle Columbia-Hood | collected |
238997
| WA | | Snake River | 2003 |
17060100
| Lower Snake | collected |
45907
| WA | | state non-specific | 1979 |
17000000
| Pacific Northwest Region | established |
1335168
| WA | Benton | UNNAMED POND NEAR BOARDMAN | 1961 |
17070101
| Middle Columbia-Lake Wallula | established |
166590
| WA | Grant | Priest Rapids Lake (Reservoir) | 2003 |
17020016
| Upper Columbia-Priest Rapids | collected |
240513
| WA | Spokane | Downs Lake | 2005 |
17060108
| Palouse | established |
239698
| WA | Spokane | Eloika Lake | 2005 |
17010308
| Little Spokane | established |
244699
| WA | Walla Walla | Walla Walla River | 1977 |
17070102
| Walla Walla | established |
166592
| WA | Whitman | Lower Granite Reservoir | 2003 |
17060107
| Lower Snake-Tucannon | collected |
240919
| WA | Yakima | I-82 Pond #3 | 2005 |
17030003
| Lower Yakima | established |
240936
| WA | Yakima | I-82 Pond #5 | 2005 |
17030003
| Lower Yakima | established |
166589
| WA | Yakima | Yakima River, below the Sunnyside Dam | 1997 |
17030003
| Lower Yakima | collected |
238992
| WA | Yakima | Yakima River, below the Sunnyside Dam | 1999 |
17030003
| Lower Yakima | collected |