YARBROUGH, Mark Edward

West Valley View, Avondale, Arizona September 10, 2010 Mark Edward Yarbrough, 48, of Buckeye, died Aug. 31, 2010, in Litchfield Park. Mr. Yarbrough was born Nov. 11, 1961, in El Dorado, Ark. He moved to Arizona in 1985. He attended Ouachita Baptist University in Aradelphia, Ark., before graduating from Grand Canyon University in Phoenix with a Bachelor of Science degree in chemistry. During a 23-year career, he worked as a chemist for Arizona Public Service Co. at the Palo Verde Nuclear Generating Station and Redhawk Power Plant. He was known for his research and develop in water conservation, as well as wastewater recycling and cooling water disinfection for power plant applications. He was a member of the American Society of Mechanical Engineers, and was actively involved with the Southwest Chemistry Conference, Electric Power Research Institute and Heat Recovery Steam Generator Users Group. He is survived by his girlfriend, Vickie Wagner; and two brothers, Kurt and Steve. A memorial service will be at 3:30 p.m. Sept. 15 at Thompson's Valley West Funeral Chapel, 926 S. Litchfield Road in Goodyear. A funeral service will be Sept. 27 in El Dorado, Ark.