| Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
|
1543594
| WA | Grays Harbor | Chehalis River, at Porter Ramp | 2018 |
17100103
| Upper Chehalis | established |
|
1883425
| WA | Grays Harbor | Chehalis River, Porter Ramp | 2024 |
17100103
| Upper Chehalis | |
|
1883562
| WA | Grays Harbor | Chehalis River, Porter Ramp | 2024 |
17100103
| Upper Chehalis | |
|
1543438
| WA | Lewis | Plummer Lake, at N/A | 2015 |
17100103
| Upper Chehalis | established |
|
1703687
| WA | Thurston | Black Lake | 2022 |
17100103
| Upper Chehalis | |
|
1883489
| WA | Thurston | Black Lake, WDFW Ramp | 2024 |
17100103
| Upper Chehalis | |
|
272813
| WA | Thurston | Black Lake, west side at dock of house at 7020 Lakeside Street SW. | 2010 |
17100103
| Upper Chehalis | established |
|
1544004
| WA | Thurston | Deep Lake, at Millersylvania State Park | 2006 |
17100103
| Upper Chehalis | established |