Mr. White has supervised environmental characterization efforts at rocket-motor production facilities, petroleum refineries, petroleum pipelines, printed-circuit facilities, abandoned smelter complexes, and other industrial facilities to determine the extent and magnitude of soil and groundwater contamination. In support of this work, he has prepared work plans, QA/QC plans, health and safety plans, contamination assessments, and human-health and ecological risk assessments to establish remediation goals. Based on site conditions, he has developed remedial-action plans to clean up past contamination using a wide variety of remedial measures (including air stripping, vapor extraction, thermal desorption, pump-and-treat, air sparging, dual-phase extraction, excavation and off-site disposal, stabilization/solidification, bioremediation, and natural attenuation). Contaminants of concern have included explosives, inorganics, chlorinated solvents, dioxins/furans, and other organics. Selected projects are summarized below.