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CD-ROM. Condición: Very Good. Hard thin plastic case with no covers. The book "Coal Mine Drainage Prediction and Pollution Prevention in Pennsylvania" had itsorigins as far back as 1979 when a two page letter by Pennsylvania's coal regulatory program waswritten to provide guidelines to mine operators and permit reviewers regarding requirements foroverburden analysis. The present book is a 400-page attempt to describe the state-of-the-sciencefor mine drainage prediction and pollution prevention in 1998; it is realized that our knowledgecontinues to grow. In this spirit, the book is meant to spur innovation, not to freeze thinking. Thereport represents the combined efforts of many individuals from not only the Pennsylvania Department of Environmental Protection, but also from other government agencies, academia and industry. ; 5.60 X 4.80 X 0.40 inches.