Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
156980
| WA | | coastal waters | 1997 |
17100102
| Queets-Quinault | established |
1814
| WA | | coastal waters | 1998 |
17100102
| Queets-Quinault | established |
163817
| WA | | Willapa National Wildlife Refuge | 2005 |
17100106
| Willapa Bay | established |
161217
| WA | | Puget Sound | 1920 |
17110019
| Puget Sound | established |
162208
| WA | | Puget Sound | 2000 |
17110019
| Puget Sound | established |
243729
| WA | Franklin | Snake River, Lake Sacajawea, at Windust. | 2006 |
17060110
| Lower Snake | established |
243730
| WA | Franklin | Snake River, Lake Sacajawea, pool at Levey | 2006 |
17060110
| Lower Snake | established |
243731
| WA | Franklin | Snake River, Lake Wallula, .5 mile upriver from State Road 12. | 2006 |
17060110
| Lower Snake | established |
241057
| WA | King | Duwamish River, Turning Basin | 2000 |
17110013
| Duwamish | established |
241709
| WA | King | Lake Union | 1920 |
17110012
| Lake Washington | established |
243201
| WA | Pacific | Columbia River, Baker bay, Fort Columbia State Park tide flats. | 2002 |
17080006
| Lower Columbia | established |
243198
| WA | Pacific | Columbia River, Baker Bay, Ilwaco Harbor tideflat, outer rocks | 2002 |
17080006
| Lower Columbia | established |
243199
| WA | Pacific | Columbia River, Fort Canby, boat launch, high and low marsh. | 2002 |
17080006
| Lower Columbia | established |
241191
| WA | Pacific | Willapa Bay, Bear River Pilings | 2000 |
17100106
| Willapa Bay | established |
241190
| WA | Pacific | Willapa Bay, Upper Palix River | 2000 |
17100106
| Willapa Bay | established |
241506
| WA | Skagit | Samish Bay, small float in Samish River near Edison. | 1998 |
17110002
| Strait of Georgia | established |
243732
| WA | Walla Walla | Columbia River, Lake Wallula, just south of Wallula. | 2006 |
17070102
| Walla Walla | established |
243728
| WA | Whitman | Snake River, Lake Herbert G West, at Riparia | 2006 |
17060107
| Lower Snake-Tucannon | established |