Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
1695645
| WA | King | Newport Creek, above I-405 and KC weirs; adjacent to LB bioengineered streambank | 2021 |
17110012
| Lake Washington | established |
1695646
| WA | King | Vasa in Horizon Heights Open Space, upstream of SE 45th St | 2021 |
17110012
| Lake Washington | established |
1695644
| WA | Kitsap | Blackjack Creek, near Port Orchard | 2021 |
17110019
| Puget Sound | established |
1657476
| WA | Snohomish | Jones Creek in Ebey Slough | 2021 |
17110011
| Snohomish | established |
1680069
| WA | Snohomish | Unnamed Tributary to Ebey Slough | 2021 |
17110011
| Snohomish | established |