This book is a collection of keynote reviews and detailed case-studies covering the principal areas of active research and state-of-the-art industrial practice in the field of mine water management. It addresses both issues of water quantity (such as the impact of longwall mining on the piezometry and hydraulic properties of overlying aquifers) and water quality (spanning an array of sites from deep coal mines to open-pit base metal mines), as well as a wealth of hybrid, integrated studies in which hydrogeological and geochemical aspects are considered (and managed) together.The papers presented in this book are intended for practising geologists and engineers involved in the management of active and abandoned mine sites all over the world. It is also of interest to academic geoscientists and students with interests in low-temperature aqueous geochemistry and the hydrogeology of complex, quasi-karstic groundwater flow systems.