Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
46102
| WA | Jefferson | Crocker Lake | 1992 |
17110020
| Dungeness-Elwha | established |
46150
| WA | Jefferson | Leland Lake | 1992 |
17110018
| Hood Canal | established |
46104
| WA | King | Lake Fenwick | 1992 |
17110013
| Duwamish | established |
46112
| WA | King | Lake Meridian | 1992 |
17110013
| Duwamish | established |
1335209
| WA | King | Lake Washington near the Beaux Arts-Enatai area | 2016 |
17110012
| Lake Washington | unknown |
46153
| WA | King | Otter Lake | 1992 |
17110009
| Skykomish | established |
46155
| WA | King | Panther Lake, Kent and Renton area | 1992 |
17110013
| Duwamish | established |
46151
| WA | Mason | Mason Lake | 1992 |
17110019
| Puget Sound | established |
45938
| WA | Snohomish | Gissberg Twin Lakes | 1992 |
17110011
| Snohomish | established |
46148
| WA | Thurston | Lake Saint Clair | 1992 |
17110015
| Nisqually | established |
46154
| WA | Thurston | Patterson Lake (Pattison Lake) | 1992 |
17110019
| Puget Sound | established |
46157
| WA | Whatcom | Lake Samish | 1992 |
17110002
| Strait of Georgia | established |