(Troutdale, OR) -- A 26-year-old woman is dead after drowning in the Columbia River while attending a company party in Troutdale. Multnomah County Sheriff's deputies responded to a report someone had fallen into the river at a property on Sundial Road early Wednesday morning. They found Olivia Payne unresponsive in the water. Police say she fell in trying to get from a dock to a boat. The Medical Examiner conducted an autopsy and determined Payne died from accidental drowning.