Covers thoroughly technologies for ground water pollution control in part one and deals in depth with aquifer restoration decision-making in part two. Part three gives an extensive range of case studies and detailed references.INTRODUCTION. Classification of Methodologies. Overview Studies. TECHNOLOGIES FOR GROUND WATER POLLUTION CONTROL (Part One). PHYSICAL CONTROL MEASURES. Source Control Strategies. Well Systems. Surface Water Control, Capping and Liners. Sheet Piling. Grouting. Slurry Walls.TREATMENT OF GROUND WATER. Air Stripping, Carbon Adsorption, Biological Treatment, Chemical Precipitation. Other Treatment Techniques (D. F. Kincannon, E. L. Stover, Oklahoma State).In-Situ Technologies. In Situ Chemical Treatment. In Situ Biological Stabilization. Conclusions (C.H. Ward, M. D. Lee, Rice U.) DECISION-MAKING IN AQUIFER RESTORATION PROJECTS (Part Two). PROTOCOL FOR AQUIFER RESTORATION DECISION-MAKING. Background Information. Conceptual Framework for Aquifer Restoration. Decision-Making. Preliminary Activities. Date Evaluation. Data Needs. Development of Alternatives. Selection of Aquifer Restoration. Decision-Making. Preliminary Activities. Data Evaluation. Data Needs. Development of Alternatives. Selection of Aquifer Restoration Strategy. TECHNIQUES FOR DECISION-MAKING. Conceptual Framework for Trade-Off Analysis. Importance Weighting for Decision Factors. Systematic Comparison of Structured Importance. Weighting Techniques. Ranking Techniques for Importance Weighting. Rating Techniques for Importance Weighting. Paired Comparison Techniques. Delphi Technique for Importance Weighting. Scaling/Rating/Ranking of Alternatives. Development of Decision Matrix. RISK ASSESSMENT AS RELATED TO AQUIFER RESTORATION PLANNING. Background Information. Elements of Risk Assessment. Environmental Risk Analysis. Risk Assessment for Hazardous Waste Disposal Sites. PUBLIC PARTICIPATION IN AQUIFER RESTORATION DECISION-MAKING. Basic Definitions. Public Participation in the DecisionlB