November 17, 2014, 2:00 PM - 4:00 PM, EST (19:00-21:00 GMT)

You may also be interested in the following related archives:

• Technology Transfer and Training Resources for Mining Sites (June 13, 2012)
• Mining-Influenced Water: Environmental Issues, Remediation Research, and Tools for Estimating Remediation Cost (September 19, 2012)
• Mining-Influenced Water: Treatment Technologies (February 6, 2013)
• NARPM Presents...Ecological Revitalization Using Natural Materials (May 14, 2013)
• Mining Site Metals: Exposure Pathways and Bio-Assays (September 3, 2013)
• Soil Amendment Applications and Mine Site Restoration Impacts on Soil Ecosystem Services (May 7, 2014)
• Using Biosolids and Coal Combustion Products for Soil Remediation at Mining Sites (July 24, 2014)
• Water Treatment: Iron Mountain Mine and Bunker Hill Mining and Metallurgical Complex Superfund Sites (December 17, 2014)
• Mine Tailings Fundamentals: Current Technology and Practice for Mine Tailings Facilities Operations and Closure (May 19, 2015)
• Mine Tailings Fundamentals: Current Technology and Practice for Mine Tailings Facilities Operations and Closure (May 20, 2015)
• Remedial Action, Remedy Performance, and Long-Term Land Management at the Anaconda Smelter NPL site (June 4, 2015)
• Screening, Testing, and Application of Residuals and Byproducts for Remediation (December 2, 2015)
• Identifying the Potential for Methylation of Mercury at Mining Sites (March 29, 2016)
• NEPA and Mining 101, Part 1: Mining Fundamentals (May 12, 2016)
• NEPA and Mining 101, Part 2: Mining Environmental Concerns and Issues (May 24, 2016)
• NEPA and Mining 101, Part 3: Regulatory Process & How the Public and Tribes can Engage (June 8, 2016)
• Passive Treatment of Mining-Influenced Water: From Bench Scale to O&M (November 14, 2016)
• Overview, Lessons Learned and Best Practices Derived from Independent Optimization Reviews of Superfund Mining Sites (May 24, 2017)
• Matching Biochar Characteristics with Metals-Contaminated Soils to Effectively Reduce Metal Bioavailability at Mining Sites (November 7, 2017)
• Mining Webinar Series: Ecological Revitalization at the Henry's Knob Former Mining Site (March 6, 2018)
• Mining Webinar Series: Successful Implementation of Biologically-Based Passive Remediation Systems (May 1, 2018)

This webinar features three presentations delivered at the 2014 National Conference on Mining Influenced Waters (MIW). The session highlights EPA's efforts to identify lower-maintenance and innovative MIW treatment technologies, work being conducted by the International Network for Acid Prevention (INAP), and efforts undertaken by Barrick Gold Corporation to clean up and implement best industry practices at a mining-impacted river in the Dominican Republic.

• EPA Report On Treatment Technologies For Mining-Influenced Water
  Presented by: Michele Mahoney, EPA
  
  EPA is evaluating more cost-effective and lower-maintenance treatment systems to decrease the costs and improve the efficiency of mine site cleanups. This presentation showcases information in a 2014 EPA report on select MIW treatment technologies used or piloted as part of remediation efforts at mine sites. The report is targeted to federal, state and local regulators, site owners and operators, consultants, and other stakeholders, and includes short descriptions of treatment technologies, information on the contaminants treated, pre-treatment requirements, long-term maintenance needs, performance, and costs. Technologies described are applicable to treatment of water from both coal and hardrock mine operations. Sample sites illustrate considerations associated with selecting a technology. Website links and sources for more information on each topic are also included.
  
  This report focuses on passive treatment methods, but also includes recently developed or not widely utilized active treatment systems and passive-active hybrid systems. The report does not include all traditional active technologies, such as lime precipitation or high-density sludge systems.
  
  
• INAP: Partnering to Support Sustainable Mining
  Presented by: Terrence D. Chatwin, Ph.D., INAP
  
  This presentation will identify INAP and describe how this mining company network is partnering with other mining stakeholders to support sustainable mining. The key element to our sustainable mining program is the Global Acid Rock Drainage (GARD) Guide, an international best practice guide for the prevention of acid-rock, neutral and saline drainage.
  
  Since the GARD Guide was rolled out in 2009, it has become accepted as a major guidance document for the prevention and mitigation of mine-influenced waters and is used by a diverse collection of mining stakeholders ranging from mining companies to regulators, academics and communities to support sustainable mining. The presentation will include examples of its application in a multitude of climatic and geologic conditions, and will illustrate how INAP and its Global Alliance partners are building stakeholder capacity in developing regions including some new activities to enhance our educational tools.
  
  
• Barrick Gold: Remediation and Sustainable Mining Efforts in the Dominican Republic
  Dramatic Improvements at Margajita River, Pueblo Viejo Gold Mine, Dominican Republic
  Presented by: Carlos E. Tamayo Lara, Ph.D., M.B.A., P.E., Barrick Gold Corporation
  
  The six-kilometer long Margajita River is one of the largest freshwater bodies in Dominican Republic (DR). The river skirts Barrick's Pueblo Viejo mine before winding its way into Hatillo reservoir. For decades, the river was highly acidic (pH <3) as a consequence of acid rock drainage from the old waste rock dumps and previous State-owned operator Rosario Dominicana facilities. Metal concentrations exceeded DR quality standards by orders of magnitude.
  
  Pueblo Viejo Dominicana Corporation (PVDC) started commercial operations at the Pueblo Viejo Gold Mine in 2013. Barrick Gold Corporation (operator) holds 60 percent interest while Goldcorp holds 40 percent interest. PVDC has put in a lot of effort to clean up and implement best industry practices at this brownfield site, and dramatic improvements in water quality have been seen over the past year. This presentation will discuss the cleanup efforts at the Margajita River, the impacts on local communities, and PVDC's plans for the future of this site (PVDC has committed $75 million to fund the remediation of historical environmental liability that belongs to DR State).

• Michele Mahoney, U.S. EPA Technology Innovation and Field Services Division (mahoney.michele@epa.gov)
• Terrence D. Chatwin, Ph.D., INAP (tchatwin@inap.com.au)
• Carlos E. Tamayo Lara, Ph.D., M.B.A., P.E., Barrick Gold Corporation (ctamayo@barrick.com)

• Michele Mahoney, U.S. EPA Technology Innovation and Field Services Division (mahoney.michele@epa.gov)
• Jean Balent, U.S. EPA Technology Innovation and Field Services Division (balent.jean@epa.gov)

• Adobe^® Connect™ Meeting Connection Diagnostic & Troubleshooting Tips
• Adobe^® Connect™ Mobile Apps
• Adobe® Connect™ Visual Quick Start Guide (754KB/2pp/PDF)

Press the "Go to Seminar" button to join the Adobe^® Connect™ meeting room. Please be at this location at the beginning of the seminar.