Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
1527149
| WA | Benton | Yakima River between Prosser and Horn Rapids | 2016 |
17030003
| Lower Yakima | established |
1525945
| WA | Benton | Yakima River between Prosser and Horn Rapids | 2017 |
17030003
| Lower Yakima | established |
230523
| WA | Benton | Yakima River, 1.3 miles E of dam at Prosser. | 1973 |
17030003
| Lower Yakima | established |
230521
| WA | Yakima | Ahtanum Creek, at Goodman Rd crossing, 2-3 mi northwest of Ahtanum Ridge Radio Towers and 2.2 mi south-southeast of Yakima Airport. | 1973 |
17030003
| Lower Yakima | established |
230509
| WA | Yakima | Yakima Elks Golf and Country Club, midway between Yakima and Selah, creek/ditch parallelling driveway. | 1973 |
17030001
| Upper Yakima | established |
230512
| WA | Yakima | Yakima River, southernmost branch, along Washington Rt 22, North of Toppenish. | 1973 |
17030003
| Lower Yakima | established |