SCMTSC’s primary goal is to provide technical assistance to regional programs on complex hazardous waste site characterization issues. This annual report illustrates the range and extent of projects that SCMTSC supported in FY 2016. Our principal audiences are site project managers, regional management, the Regional Forums and States through their Regional contacts. This report is also intended for our benefactors, Office of Land and Emergency Management (OLEM) and Office of Research and Development (ORD), to show that their generous financial investment and expertise are important components in cleaning up sites and protecting our communities. Our goal for this report is to demonstrate our capabilities and accomplishments so that project managers and technical support staff will continue to look to SCMTSC as a valuable resource in solving complex hazardous site investigation and cleanup issues.