Front Matter -- Preface -- List of Report Reviewers -- Contents -- Summary -- 1 Introduction and Task -- 2 Subsurface Contamination in the DOE Complex -- 3 Assessment of the EM Science Program Portfolio -- 4 Research Programs in Other Agencies of Government -- 5 Knowledge Gaps and Research Needs -- 6 Recommendations for a Long-Term Research Program -- References -- A Description of the Environmental Management Science Program -- B List of Presentations -- C Biographical Sketches of Committee Members -- D Additional -- E Interim Report -- F Acronym List.