Speakers

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Henry Brehaut
Henry Brehaut has spent all his working life in the mining industry with experience in underground and open pit mining, mine and corporate development, environment and sustainable development and corporate management. As a corporate executive and director Henry gained extensive experience in corporate governance and mine management, including chief operating responsibility for nine tailings dams.

Henry currently acts as an independent consultant on sustainability issues as President, Global Sustainability Services Inc. and has provided executive and board level advice on sustainable development issues to governments, multilateral organizations, mining companies and industry associations. In 1999 he received the Prospectors and Developers Association of Canada Environmental Award for “helping to bring environmental and sustainable development issues to the forefront in Canadian and international mining”. He has a B.Sc. in Mining Engineering from Queen’s University and a MBA from the University of British Columbia.


CATASTROPHIC TAILINGS DAM FAILURES - PATH FORWARD
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John Cunning
John Cunning is a Principal and Geotechnical Engineer with Golder Associates in Vancouver, BC, Canada. He has a Bachelor degree in Civil Engineering (1991) and a Master’s degree in Geotechnical Engineering (1994) from the University of Alberta. He has been involved in geotechnical engineering studies supporting tailings and mine waste management projects for more than 25 years. He specializes in investigation, design, operation and closure of tailings facilities, water management facilities and waste rocks dumps.

INTRODUCING: GUIDELINES FOR MINE WASTE DUMP AND STOCKPILE DESIGN
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Richard Davidson
Richard Davidson, PE, CPEng is a Senior Principal and Vice President of AECOM in Denver Colorado. He serves on a number of mining review boards covering tailings dam, pit slope, crushed leach and waste dump issues. He also serves as an Engineer of Record for a major tailings dam. His experience with mining and dams spans a career of over 40 years practicing worldwide.

THE STATE OF MINING GEOTECHNICS
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Terry Eldridge
Terry Eldridge, P.Eng., FEC, is a Principal of Golder Associates with over 35 years of experience in the investigation, design, construction and closure of mine waste management facilities. He has worked on projects ranging from 300 tpd underground gold operations to 240,000 tpd open pit copper mine operations and in climatic conditions ranging from the Atacama desert in Chile, to the rainforests of Brazil and Indonesia to the cold climate regions of the Arctic in Canada and Russia. He has been involved in the design, construction and operation of several tailings dams that have heights in excess of 200 m and has experience with all types of dam design and operation and with all types of tailings management methods from slurry to filtered stacks.
Mr. Eldridge is a Senior Technical Reviewer for mine waste management projects being developed by Golder, provides Independent Peer Review for other consultants and mining companies and is a member of five independent review boards. Mr. Eldridge has authored and co-authored over 20 papers in journals and conferences on mine waste management.


ADVANCES IN TAILINGS MANAGEMENT IN SOUTH AMERICA
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Mark Hawley
Mark Hawley is the President and CEO of the Piteau Associates Group of Companies. He obtained a Bachelor of Applied Science in Geological Engineering from the University of British Columbia in 1979 and a Master of Science in Geotechnical Engineering from the University of California, Berkeley in 1983. He has been involved in engineering geology, rock mechanics, geotechnical and hydrogeological studies for more than 35 years, and has consulted on more than 65 major mining projects worldwide. He specializes in the investigation and design of high open pit slopes and waste rock dumps.

INTRODUCING: GUIDELINES FOR MINE WASTE DUMP AND STOCKPILE DESIGN
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Gord McKenna
I’m a geotechnical engineer and a geologist with a BASc in Geological Engineering from the University of British Columbia (1987) and a PhD in Geotechnical Engineering from the University of Alberta (2002). I spent the first 17 years of my career at the Syncrude Canada oil sands mine in Fort McMurray, Alberta, Canada, then 3 years consulting with Norwest Corporation then the last 10 years with BGC Engineering, here in Vancouver. Almost all of my consulting work is for the mining industry – oil sands, coal, and metal mines, with some hydro and other heavy civil work. BGC is a rather unique engineering company — I’m one of the few with some grey hair out of a cast of 300 brilliant people. We have a laser focus on applied earth science and a different working atmosphere.

I love to teach. Foremost I mentor about a dozen outstanding young people at BGC — the highlight of my career. I work in multidisciplinary groups building new landforms, teaching what I know, but more learning from others and the team. For five years, I was an adjunct professor in the College of Engineering at the University of Saskatchewan where I continue to help out, but less formally. Recently I was appointed an adjunct professor at the Department of Renewable Resources at the University of Alberta where I help with the Land Reclamation International Graduate School. I also give several lectures every year and put on one or two short courses. Most recently I’ve added new work into Sustainable Mining Now with Dr Rob Abbott of Victoria. I hope to write a few more books, but first we need to finish SMN.

In the remaining time I am a husband, a Dad, an avid photographer, have gotten by pilot's license, read, travel, and play piano and bass guitar . I’ve been blessed all my life to have good teachers and mentors, through sports, school, university, and in my working career.

DENSITY AND STRENGTH REQUISITES FOR CAPPING AND RECLAIMING SOFT TAILINGS TO MEET LAND-USE GOALS
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Luke Russell
Luke Russell has over 30 years of international environmental, community relations and governmental affairs experience in both industry and government; He is currently VP External Affairs with Hecla Mining Company and before that served as VP Environment and Community with Coeur Mining; He has led multi-media permitting programs in the US and internationally and has a demonstrated track record of improving productivity and profitability through integrated programs in environmental compliance, community engagement, corporate responsibility and has coordinated the establishment of corporate tailings stewardship programs. Industry experiences is blended with governmental service having worked with the Idaho Department of Environmental Quality where he played key role in the formation and operation of an inter-governmental Basin Commission which is responsible for coordinating environmental remediation and natural resource restoration in the Coeur d’Alene Basin.
Mr. Russell is a native of Wisconsin making him a diehard Badger football fan. He received his BS from the University of Wisconsin in Landscape Architecture and his MS from Montana State University in Land Rehabilitation/Soil Science. He and his wife live in Hayden, Idaho and he enjoys whitewater rafting and cowboy poetry.

FILTERED TAILINGS: A SILVER BULLET?
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Charles Dumaresq
Charles Dumaresq and Mike Davies will be giving a Special Workshop on behalf of MAC Monday, November 6th at 7:00 pm in the main presentation room in the Van Horne Ballroom. There will be no cost for attending this workshop.

Charles Dumaresq is Vice President, Science and Environmental Management with the Mining Association of Canada. He is playing a leadership role in MAC’s review of their guidance on tailings management, and is also engaged on other regulatory and environmental aspects of mining, including effluent and water quality, and monitoring and mitigation of effects on the aquatic environment. Prior to joining MAC in 2015, Charles spent 22 years with Environment Canada, working on regulatory and policy development related to mining and the environment.
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Michael Davies
Charles Dumaresq and Mike Davies will be giving a Special Workshop on behalf of MAC Monday, November 6th at 7:00 pm in the main presentation room in the Van Horne Ballroom. There will be no cost for attending this workshop.


Michael is a Geological Engineer originally graduating from University of British Columbia. He also has both Master’s and PH.D. degrees in Civil/Geotechnical Engineering.

Michael is currently Senior Advisor, Tailings & Mine Waste for Teck Resources. His areas of expertise are largely related to mine waste management, risk management, water management and environmental programs based upon approximately 35 years in the industry on projects throughout the world.
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