I have personally been involved in environmental remediation projects for half a century and am still going strong. In some regards it was easier decades ago when there were few proven options for the wide variety of chemical contaminants that plagued our waters, soil, and air. Of course, there were also less clear-cut success stories. Today there exists a myriad of proven options successfully implemented by intelligent environmental scientists, consulting firms, and technology providers. It has thus become difficult to understand the many options and their efficacy under a variety of conditions relating to concentrations, media, confounding conditions, and environmental sensitivity. One always has to wonder if there might not be a better solution. Now one need wonder no longer. This handbook presents the most comprehensive collection of technologies that have proven successful in field conditions since environmental engineering became one of our nation’s most important technological professions.