Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
40469
| OR | | Klamath River | 1979 |
18010204
| Lost | established |
40613
| OR | | lower Willamette drainage | 1980 |
17090000
| Willamette | established |
40660
| OR | | upper Klamath drainage | 1993 |
18010200
| Klamath | established |
40743
| OR | | upper Klamath Lake basin in Oregon | 1997 |
17100307
| Upper Rogue | established |
40685
| OR | Benton | Benton County | 1994 |
17000000
| Pacific Northwest | established |
41918
| OR | Douglas | Umpqua River near Tyee | 1991 |
17100303
| Umpqua | unknown |
241422
| OR | Linn | Cox Creek, a tributary of the Willamette River located in Albany | 1996 |
17090003
| Upper Willamette | established |
41733
| OR | Marion | St. Louis ponds (7), 2 miles west of Gervais on west side of freeway. | 2001 |
17090009
| Molalla-Pudding | unknown |
297153
| OR | Marion | St. Louis ponds (7), 2 miles west of Gervais on west side of freeway. | 2009 |
17090009
| Molalla-Pudding | established |
297160
| OR | Marion | St. Louis ponds (7), 2 miles west of Gervais on west side of freeway. | 2013 |
17090009
| Molalla-Pudding | established |
1468322
| OR | Multnomah | [Kelly or Beaver Creek], stream leading to Hood Pond in Gresham, next to Mt. Hood Community College | 2018 |
17080001
| Lower Columbia-Sandy | established |
1699883
| OR | Multnomah | [No locality description provided] | 2020 |
17080001
| Lower Columbia-Sandy | |
40467
| OR | Multnomah | Blue Lake near Portland | 1979 |
17080003
| Lower Columbia-Clatskanie | established |
1729336
| OR | Wallowa | [No locality description provided] | 2023 |
17050201
| Brownlee Reservoir | |
1751950
| OR | Wallowa | [No locality description provided] | 2024 |
17050201
| Brownlee Reservoir | |