If you work in Oregon you may have to complete an Oregon non-resident tax return to report the income earned in Oregon even though you live in Washington state.
See this TurboTax support FAQ for information - https://ttlc.intuit.com/questions/2895920-why-would-i-have-to-file-a-nonresident-state-return
Oregon Department of Revenue contact information - http://www.oregon.gov/DOR/contact/Pages/default.aspx
