| Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
|
1883950
| WA | Island | pond on Whidbey Gold Club course | 2024 |
17110019
| Puget Sound | |
|
1883949
| WA | King | 3501 NE 41st St Seattle WA 98195 | 2024 |
17110012
| Lake Washington | |
|
156041
| WA | King | Bellevue | 1995 |
17110012
| Lake Washington | unknown |
|
1883944
| WA | King | Lake Union, Union Bay Natural Area | 2024 |
17110012
| Lake Washington | |
|
235819
| WA | King | Lake Washington | 1999 |
17110012
| Lake Washington | established |
|
156040
| WA | King | Lake Washington, Sand Point. | 1995 |
17110012
| Lake Washington | unknown |
|
1883946
| WA | King | Lake Washington, Union Bay Natural Area | 2024 |
17110012
| Lake Washington | |
|
1883947
| WA | King | Lake Washington, WSDOT SR520 construction site near Lake Washington | 2024 |
17110012
| Lake Washington | |
|
1883931
| WA | King | on sidewalk of 9700 block 128th Ave NE Kirkland WA 98033 | 2024 |
17110012
| Lake Washington | |
|
1883945
| WA | King | Unnamed Waterbody, Pond next to Snoqualmie Valley Auto Rebuild | 2024 |
17110010
| Snoqualmie | |
|
1883948
| WA | Pierce | Palmer Lake, Palmer Lake | 2024 |
17110019
| Puget Sound | |
|
156042
| WA | Thurston | Yelm Highway, in Puget Sound area | 1995 |
17110015
| Nisqually | unknown |
|
1657937
| WA | Whatcom | South end of Lake Whatcom off Lake Whatcom Blvd and South Bay Road in Whatcom County. | 2020 |
17110004
| Nooksack | unknown |