Applied geophysics were developed to explore the raw materials needed by civilization. Today it is used to investigate the extent and nature of buried contaminated waste and leachates.The book describes in detail, yet in a simple language, possibilities, advantages and shortcomings of geophysical methods. Case histories from the US and all over the world are discussed and richly illustrated, and cost estimates for geophysical surveys and criteria for the choice of methods and the compilation of tenders are provided.The book will enable engineers, scientists and lawyers to appraise the possibilities of geophysics in the assessment of environmental risks.