Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
45993
| WA | | state non-specific | 1992 |
17000000
| Pacific Northwest Region | established |
238788
| WA | King | Lake Sammamish | 2003 |
17110012
| Lake Washington | established |
238790
| WA | Pierce | Muck Creek | 1990 |
17110015
| Nisqually | established |
238791
| WA | Skagit | Pass Lake | 1990 |
17110019
| Puget Sound | established |
238787
| WA | Snohomish | Blackmans Lake | 2003 |
17110011
| Snohomish | established |
238793
| WA | Snohomish | Lower Pilchuck River | 2003 |
17110011
| Snohomish | established |
238786
| WA | Snohomish | Martha Lake, in Martha Lake. | 2003 |
17110012
| Lake Washington | established |
238794
| WA | Snohomish | Snohomish River | 2003 |
17110011
| Snohomish | established |
238795
| WA | Snohomish | Stillaguamish River | 2003 |
17110008
| Stillaguamish | established |
238792
| WA | Whatcom | Squalicum Lake | 1990 |
17110004
| Nooksack | established |
238796
| WA | Whitman | Pine Creek, tributary to Rock Creek in the Palouse River drainage | 2003 |
17060109
| Rock | established |
238789
| WA | Yakima | unnamed private pond, Yakima County | 2003 |
17030003
| Lower Yakima | established |