Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
558285
| WA | Adams | Hutchinson Lake | 2013 |
17020015
| Lower Crab | unknown |
1546782
| WA | Benton | WE Johnson Park. | 2019 |
17030003
| Lower Yakima | established |
615377
| WA | Clark | Lacamas Lake at Lacamas Park | 2013 |
17080001
| Lower Columbia-Sandy | established |
1701424
| WA | King | [No locality description provided] | 2022 |
17110012
| Lake Washington | |
1700109
| WA | King | [No locality description provided] | 2022 |
17110019
| Puget Sound | |
1700186
| WA | King | [No locality description provided] | 2022 |
17110012
| Lake Washington | |
1700187
| WA | King | [No locality description provided] | 2022 |
17110012
| Lake Washington | |
1700188
| WA | King | [No locality description provided] | 2022 |
17110012
| Lake Washington | |
1700377
| WA | King | [No locality description provided] | 2022 |
17110019
| Puget Sound | |
159243
| WA | King | King county | 1995 |
17110012
| Lake Washington | unknown |
159244
| WA | Snohomish | Puget Sound Drainage | 1995 |
17110011
| Snohomish | unknown |
159245
| WA | Thurston | Thurston County | 1995 |
17110019
| Puget Sound | unknown |