The International Mine Water Association with 800 international members, thereunder 50 corporate members, is an interdisciplinary organization focused on various aspects of mine water. These include hydrology, chemistry, biology, environmental aspects, potential reuse, as well as how best to control it through better prediction, management and treatment. Some members of IMWA are experts in specific branches of the natural sciences and technology and conduct research that is directly relevant to mine water problems. Many others are practitioners, consultants and regulators who are interested in learning how the results of such research can be applied at specific sites. IMWA was founded in 1979 in Gra-nada, Spain as a result of interest shown at the “First International Mine Drainage Symposium”. Since then, IMWA has organized a Congress every three years and annual conferences and workshops on topical subjects. These have included: Hydrogeology of Coal Basins; Mine Water and Pumping; ACID Mine Water; First African Mine Water Symposium; Water Resources at Risk; Engineering in Karst; and Mine Water and the Environment. Membership in IMWA is open to everyone with an interest in mine water, and all members receive a subscription to the SCI listed journal “Mine Water and the Environment”. This journal attempts to bridge the gap between researchers and practitioners by only publishing research papers that the editors believe are potentially relevant to real-world problems and case studies submitted by practitioners. The field of mine water management continues to evolve, and there are still many open issues, both on the theoretical and performance levels. IMWA provides a forum for an international discussion on a wide range of topics through its journal, annual meetings and social media.