Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
745334
| OR | Washington | Beaverton Creek at 170th Ave., tributary to Rock Cr., Tualatin drainage | 1982 |
17090010
| Tualatin | established |
41471
| OR | Washington | Dorman Pond, junction of Gales Creek Road and highway 6 | 2001 |
17090010
| Tualatin | established |
299882
| OR | Washington | Dorman Pond, junction of Gales Creek Road and highway 6 | 2009 |
17090010
| Tualatin | established |
299887
| OR | Washington | Dorman Pond, junction of Gales Creek Road and highway 6 | 2013 |
17090010
| Tualatin | established |