Specimen ID | Common Name | State | County | Locality | Year |
| Drainage name | Status |
1526963
| Eurasian watermilfoil | WA | Benton | Columbia River at Tricities | 2018 |
17020016
| Upper Columbia-Priest Rapids | established |
1528200
| Eurasian watermilfoil | WA | Benton | Yakima River between Prosser and Horn Rapids | 2018 |
17030003
| Lower Yakima | established |
1526995
| Eurasian watermilfoil | WA | Benton | Yakima River between Prosser and Horn Rapids | 2018 |
17030003
| Lower Yakima | established |
1525791
| Eurasian watermilfoil | WA | Benton | Yakima River between Prosser and Horn Rapids | 2018 |
17030003
| Lower Yakima | established |
1525792
| Eurasian watermilfoil | WA | Benton | Yakima River downstream of Horn Rapids Dam | 2018 |
17030003
| Lower Yakima | established |
1526999
| Eurasian watermilfoil | WA | Chelan | Columbia River at Entiat Lake | 2018 |
17020010
| Upper Columbia-Entiat | established |
1525795
| Eurasian watermilfoil | WA | Chelan | Columbia River at Entiat Lake | 2018 |
17020010
| Upper Columbia-Entiat | established |
1529420
| Eurasian watermilfoil | WA | Clark | Vancouver Lake | 2018 |
17080003
| Lower Columbia-Clatskanie | established |
1524980
| Eurasian watermilfoil | WA | Grant | Banks Lake | 2018 |
17020014
| Banks Lake | established |
1468518
| Eurasian watermilfoil | WA | King | [Green Lake] | 2018 |
17110012
| Lake Washington | established |
1468152
| Eurasian watermilfoil | WA | King | 7777 62nd Avenue Northeast [Lake Washington] | 2018 |
17110012
| Lake Washington | established |
1525745
| Eurasian watermilfoil | WA | Kittitas | Lavender Lake | 2018 |
17030001
| Upper Yakima | established |
1529554
| hybrid watermilfoil | WA | Kittitas | Mattoon Lake | 2018 |
17030001
| Upper Yakima | established |
1527145
| hybrid watermilfoil | WA | Okanogan | Spectacle Lake | 2018 |
17020006
| Okanogan | established |
1525803
| Eurasian watermilfoil | WA | Okanogan | Spectacle Lake | 2018 |
17020006
| Okanogan | established |
1527043
| Eurasian watermilfoil | WA | Okanogan | Whitestone Lake | 2018 |
17020006
| Okanogan | established |
1529484
| Eurasian watermilfoil | WA | Pacific | Loomis Lake | 2018 |
17100106
| Willapa Bay | established |
1529488
| Eurasian watermilfoil | WA | Pend Oreille | Duncan Pond | 2018 |
17010216
| Pend Oreille | established |
1524808
| Eurasian watermilfoil | WA | Pierce | American Lake | 2018 |
17110019
| Puget Sound | established |
1528303
| Eurasian watermilfoil | WA | Skagit | Pass Lake | 2018 |
17110019
| Puget Sound | established |
1528320
| Eurasian watermilfoil | WA | Spokane | Long Lake (Reservoir) | 2018 |
17010307
| Lower Spokane | established |
1528353
| hybrid watermilfoil | WA | Spokane | Williams Lake | 2018 |
17060108
| Palouse | established |
1528324
| Eurasian watermilfoil | WA | Stevens | Deer Lake | 2018 |
17020003
| Colville | established |
1528354
| hybrid watermilfoil | WA | Stevens | Loon Lake | 2018 |
17020003
| Colville | established |
1529539
| Eurasian watermilfoil | WA | Whatcom | Terrell Lake | 2018 |
17110002
| Strait of Georgia | established |