The existing PUD commissioners -- Chris Stearns and Linda Oosterman -- made their choice Tuesday night. Olsen was among five people who applied to fill the seat left vacant by Alan Corwin. Corwin resigned before the end of 2012.
Olsen is a voluntary cleanup program unit supervisor for Ecology. He earned a bachelor's degree in political science and criminal justice from Saint Martin's University in 1997, and a master's degree in public administration from Seattle University in 2005.
Olsen is set to be sworn in as the new commissioner on Feb. 26.
For more on this story, see Thursday's Olympian.