Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
45896
| WA | King | Dumheller Fountain on the University of Washington campus | 1909 |
17110012
| Lake Washington | established |
157789
| WA | King | Lake Union | 1920 |
17110012
| Lake Washington | established |
268412
| WA | King | Lake Union | 1935 |
17110012
| Lake Washington | established |
268411
| WA | King | Lake Washington | 1935 |
17110012
| Lake Washington | established |
45894
| WA | King | Lake Washington | 1979 |
17110012
| Lake Washington | established |
46005
| WA | King | Lake Washington, near Seattle, and her sisters | 1946 |
17110012
| Lake Washington | established |
1701319
| WA | Snohomish | [No locality description provided] | 2022 |
17110012
| Lake Washington | |