Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
40556
| OR | Multnomah | Columbia River fish wheel at Warrendale | 1903 |
17080001
| Lower Columbia-Sandy | established |
41381
| OR | Multnomah | Rooster Rock Slough, north of I-84N at Rooster Rock State Park. | 2001 |
17080001
| Lower Columbia-Sandy | established |
297364
| OR | Multnomah | Rooster Rock Slough, north of I-84N at Rooster Rock State Park. | 2009 |
17080001
| Lower Columbia-Sandy | established |
297369
| OR | Multnomah | Rooster Rock Slough, north of I-84N at Rooster Rock State Park. | 2013 |
17080001
| Lower Columbia-Sandy | established |