Gary Petersen is the former vice president of federal programs for TRIDEC, the Tri-City Development Council, which works to promote economic growth for Washington State’s Tri-Cities (Pasco, Kennewick, and Richland) area. Before TRIDEC, he worked at the Hanford site for Battelle, serving as news manager, and in the International Nuclear Safety Program at Pacific Northwest National Laboratory. In this interview, Petersen discusses the studies Hanford conducted in biology and health physics, the continuing cleanup of the Hanford site, and the future of radioactive waste disposal. Additionally, he discusses his involvement in producing the book Nuclear Legacy: Students of Two Atomic Cities, that looked at the connections between Richland, WA and Slavutych, Ukraine through the perspectives of American and Ukrainian students.