Karen Vangelas is a fellow engineer at the Savannah River National Laboratory (SRNL) in Aiken, South Carolina. She has been employed at the Savannah River Site since 1989. Karen worked one year at SRNL before transferring to the newly formed Environmental Restoration organization in 1990. In that role she led site characterization and remedial assessment work at both metal/radionuclide contaminated sites as well as organic contaminated sites. In 1996, Karen returned to SRNL where she participated in applied research projects, gaining increasing levels of responsibility through the years. Her early work was focused on field efforts associated with organic contaminants. Karen’s latest and ongoing work involves managing two applied research efforts, one developing enhanced attenuation approaches for chlorinated solvents and the other a broad research initiative developing an approach, as well as, tools and treatment technologies for groundwater contaminated with metals and radionuclides. Karen has been a member of the ITRC beginning in 2004 as a member of the Enhanced Attenuation: Chlorinated Organics Team. With the formation of the Attenuation Processes for Metals and Radionuclides Team in 2007 she became a team member. Karen earned a master degree in Environmental Engineering from The Pennsylvania State University in State College, Pennsylvania in 1990.