I am no familiar with this species so will have to work with others to help you. Do you have a sample of these worms? I think confirming the identity would be very important. As far as I can tell they are present in Wisconsin but I could not find records for Oregon. Can you contact me at the email address below? Thank You!
A sample of the worms were sent to Jim Labonte at the ODA, they were not Asian Jumping Worms...