Main Summit - Day 2

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8:55 AM Chairman’s Remarks

Mr. Adrian Brown , President, International Mine Water Association (IMWA)

Mr. Adrian Brown
President
International Mine Water Association (IMWA)

9:00 AM The Effects of Tailings on Water Management

Dr. John Lupo , Sr. Director Geotechnical Engineering, Newmont Mining

How do you mitigate the long-term environmental liability associated with tailing? Where does the water go and what is its quality once it returns to the natural environment?

Attendees to this session will be better able to:

  • Understand the chemistry at work with Tailings
  • How to utilize predictive methods and verification
  • How to manage geochemical changes that may have adverse impacts
Dr. John Lupo
Sr. Director Geotechnical Engineering
Newmont Mining

9:45 AM Mine Closure Methods & Active Treatment: Sharing Best Practices

Dr. Mark Thorpe , VP of Sustainability, Golden Star Resources

Mr. Bill Jones , Chief of Process Services, Kinross

Once operations have ceased, confirming that wastewater is sustainably disposed of has become increasingly important to both mine operators and the general public. Sharing best practices and technologies for the ‘post-lifecycle’ of the mine.

Attendees to this session will be better able to:

  • Understand mine closure  preparation for ‘next-use’ possibilities
  • Compare long-term environmental restoration projects
  • Further predicting flow paths and environmental impacts
  • Developing long-term compatible land uses
Dr. Mark Thorpe
VP of Sustainability
Golden Star Resources

Mr. Bill Jones
Chief of Process Services
Kinross

11:15 AM Panel Discussion: Abandoned and Inactive Mines: Reclamation, Acid Rock Drainage & Water Usage

Mr. Mike Wireman , National Ground-Water Expert, U.S. EPA Region 8

Mr. Bruce Stover , Director of the Office of Active & Inactive Mines, Colorado Division of Reclamation and Mining Safety (DRMS)

Reclamation of abandoned or inactive hardrock mine sites on public and private land in the western United States often involves developing a strategy for managing acid mine drainage (AMD) discharges.  At many of these mine sites, there are no viable potentially responsible parties associated with the past mining operation. Remediation of water contamination at these legacy sites has commonly included water treatment facilities. Construction, operation, and maintenance of large scale, electric-powered treatment plants, is becoming increasingly difficult due to the remote locations of many mines, funding constraints associated with perpetual treatment, and long-term ownership issues. In recent years, there has been increasing research related to the feasibility of source-control measures to mitigate the impacts from discharging AMD. Source control refers to controlling the inflow of  groundwater into underground workings or open pits and/or controlling the outflow of mine drainage from the workings. Controlling inflow can involve separation of “clean” and contaminated surface water, groundwater, or mine water, or reduction of groundwater inflow by grouting to reduce what has to be treated. Source control can also involve bulkhead installation in underground adits and tunnels to re-establish pre-mining groundwater levels. Experience with source control methods is growing and much is being learned re: which mine sites are suitable for this approach; appropriate hydrologic characterization tools and post closure monitoring.

Attendees to this session will be better able to:

  • Learn about alternatives to traditional ARD treatment
  • Learn about the Reclamation of abandoned or inactive hardrock mine sites

Mr. Mike Wireman
National Ground-Water Expert
U.S. EPA Region 8

Mr. Bruce Stover
Director of the Office of Active & Inactive Mines
Colorado Division of Reclamation and Mining Safety (DRMS)

1:00 PM Transfer of Data Management Technology from Municipal Well Fields to the Mining Industry

Dr. Mary Poulton , Department Head, Mining & Geological Engineering, University of Arizona

Data management is of paramount importance to all aspects of the mining process and especially to water management and sustainability operations. This case study will focus on the solutions available throughout the market.

Attendees to this session will be better able to:

  • Understand mine-specific data management solutions
  • Optimizing energy consumption for pumping
  • Water quality optimization through data management
Dr. Mary Poulton
Department Head, Mining & Geological Engineering
University of Arizona

1:45 PM Post-Mine Reclamation

Ms. Katie Walton-Day , Manager, United States Geological Survey (USGS)

Mine reclamation has become an integral part of modern mining practices. The objective being to return the land to either the natural ecosystem, or to prepare the site for further development. Regardless of the final use of the site, ensuring the proper handling of water is of paramount importance.

Attendees to this session will be better able to:

  • Minimize costs associated with mine-site reclamation
  • Ensure water quality after closure and reclamation in order to comply with regulations
Ms. Katie Walton-Day
Manager
United States Geological Survey (USGS)

3:15 PM Preventing Mine Water Impact in Large Scale Mining

Mr. Adrian Brown , President, International Mine Water Association (IMWA)

Large scale mining has the potential to create large scale water impacts, which incur very high response costs. Mine design can limit or eliminate these impacts, and thereby provide assurance that mining is compatible with environmental sustainability.

Attendees to this session will be better able to:
  • Learn about the water impact potential of mining methods and operations
  • Understand the costs and benefits of water impact avoidance
  • Take advantage of the benefits of mine design for mine water impact avoidance
Mr. Adrian Brown
President
International Mine Water Association (IMWA)

4:00 PM Close of Summit

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