Inactive and abandoned mines in the USA and South Africa; Bulkheads: The lessons from the Gold King Mine spill of August 2015

Theme: Geoscience for health, groundwater and the environment

Ronald R.H. Cohen is an Emeritus Professor of Civil and Environmental Engineering at the Colorado School of Mines and has held an appointment as Professor Extraordinaire, North-West University, Potchefstroom, South Africa. His expertise includes treatment and remediation of mine wastes; environmental site characterisation for the mining industries; and remediation of America’s nuclear weapons sites. Ronald has worked on uranium remediation in a South African watershed for over 15 years. He has consulted, served as an expert witness and lectured on mining and the environment in South Africa, India, Brazil, Mali, Ghana, Chile, Venezuela, Canada, China, Russia, England and in the USA. Ronald has received a Certificate of Special Recognition from the US Congress for remediation and restoration of the nuclear weapons facilities in the USA. He has shared the First Prize for Environmental projects from the American Consulting Engineers Council for the development of treatment systems for acid mine drainage in 1991. He has received the graduating class “Outstanding Professor of the Year” award for 12 consecutive years. He has been granted interviews on the Gold King Mine spill with the New York Times, Wall Street Journal, Los Angeles Times, National Public Radio, Colorado Public Radio, International Business News, The Guardian UK, The Guardian US, Smithsonian Institution, National Geographic, Al Jazeera and local TV stations. The Chairman of the House of Representatives Committee on Science, Space and Technology requested that he serve as expert witness at the US congressional hearings on the Gold King Mine spill.