Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
1526577
| WA | Benton | Yakima River at Prosser Pool | 2018 |
17030003
| Lower Yakima | established |
1528981
| WA | Benton | Yakima River between Prosser and Horn Rapids | 2018 |
17030003
| Lower Yakima | established |
1527775
| WA | Benton | Yakima River between Prosser and Horn Rapids | 2018 |
17030003
| Lower Yakima | established |
1527776
| WA | Benton | Yakima River downstream of Horn Rapids Dam | 2018 |
17030003
| Lower Yakima | established |
1527778
| WA | Chelan | Columbia River at Entiat Lake | 2018 |
17020010
| Upper Columbia-Entiat | established |
1526582
| WA | Chelan | Columbia River at Entiat Lake | 2018 |
17020010
| Upper Columbia-Entiat | established |
1473406
| WA | King | pond at Village Green Retirement | 2018 |
17110019
| Puget Sound | established |
1529021
| WA | Kitsap | Wildcat Lake | 2018 |
17110019
| Puget Sound | established |
1526736
| WA | Pierce | Bay Lake | 2018 |
17110019
| Puget Sound | established |
1529197
| WA | Skagit | Big Lake | 2018 |
17110007
| Lower Skagit | established |
1529208
| WA | Whatcom | Terrell Lake | 2018 |
17110002
| Strait of Georgia | established |