BC MEND ML/ARD Annual Workshop

“Challenges and Best Practices in Metal Leaching and Acid Rock Drainage”

December 1 Assessment and Mitigation

Chair Sean Shaw (BC Ministry of Energy, Mines and Petroleum Resources)

8:25-8:30 Welcome

8:30-9:00 Down-Valley Seepage Interception System, Rose Creek Valley, Faro Mine Remediation Project. Christoph Wels, Petr Kuranov, Alex Trapp and Paul Ferguson (RGC) and Megan Miller, Ameeta Bhabra and Soren Jensen (SRK Consulting)

9:00-9:30 Overcoming Challenges in Long-term Groundwater Interception. Lower Mine Yard, Former Sullivan Mine, Kimberley, BC. Ryan Peterson (Teck Resources) and Stefan Humphries and Daniel Schneider (SNC-Lavalin)

9:30-10:00 Approaches Needed to Address the Challenges Associated with Water Balance Water Quality Modelling. Katie Jones (Mavin Terra Solutions)

10:00-10:30 Break

10:30-11:00 Additional Mechanisms and Measurements to Improve ARD/ML Prediction. Liang Ma, Zhong-Sheng Liu, Eben Dy, Kidus Tufa, Jian-Qin Zhou, Elizabeth Fisher, Cheng Huang (National Research Council Canada) and Kevin A. Morin (Minesite Drainage Assessment Group)

11:00-11:30 Windblown Tailings Dust as a Source of Metal to Surface Water. Heather Jamieson (Queen’s University)

11:30-12:00 Freeport-McMoRan Case Studies in Best Practices for Acid Rock Drainage Management. Madhumitha Raghav (Freeport-McMoRan, USA)

12:00-12:05 Concluding Remarks

December 2 Pit Lakes and Extreme Sulphide Self-Heating

Chair Brenda Bailey (Stantec)

8:25-8:30 Welcome

8:30-9:00 Improvements to the Water Quality of the Acidic Berkeley Pit Lake. Chris Gammons (Montana Tech)

9:00-9:30 Pit Lake Modelling and Management at the Aitik Mine, Sweden. Alan J. Martin, Silvano Salvador, Don Dunbar and Colin Fraser (Lorax Environmental Services ) and Seth Mueller and Nils Eriksson (Boliden)

9:30-10:00 Experience Using Aerial Drones for Pit Lake Water Sampling and Quarterly Monitoring. Devin Castendyk, James Ogilvie, and John Faithful (Golder Associates)

10:00-10:30 Break

10:30-11:00 Basics of Self-heating of Sulphide Mineral Mixtures. J.E. Nesset (NesseTech Consulting) and F. Rosenblum (McGill University)

11:00-11:30 Field Examples and Mitigation Strategies for Sulphide Mixtures with a High Risk of Self-heating. J.E. Nesset (NesseTech Consulting) and J. Gibson and D. Dobney (BBA)

11:30-12:00 Case Studies to IgniteYour Understanding of Combusting Waste Rock Management and Controls. Tyler Birkham and Mike O’Kane (O’Kane Consultants)

12:00-12:05 Concluding Remarks

December 3 First Nation Perspective and Performance of Waste Rock Dumps

Chair Bill Price (CanmetMINING and MEND)

8:25-8:30 Welcome

8:30-9:00 Addressing Mine Water Discharges at the Endako Mine: A Collaboration with the Community, ENV and Centerra. Cheryl Bear (Nadleh Whut’en First Nation), Mike Lapointe (Stellat’en First Nation), Rina Freed and Georgina Farah (Source Environmental Associates) and Allison Schein (LGL)

9:00-9:30 Faro Waste Rock Project: An Integrated Study of Hydrological and Geochemical Processes in Sulfide- and Carbonate-rich Waste-Rock Dumps. Zhongwen Baoa, Jeff Baina, Steven P. Hollanda, David Wilsona, Peter MacKenzieb, Carol J. Ptaceka, and David W, Blowesa (a University of Waterloo, b Crown-Indigenous Relations and Northern Affairs Canada)

9:30-10:00 Investigation of Waste Rock Weathering and Drainage: Multiscale Field Study at the Antamina Mine, Peru. Bas Vriens and Roger Beckie (UBC)

10:00-10:30 Break

10:30-11:00 Mechanisms Controlling Circumneutral Drainage Generation at the Antamina Mine, Peru. Bas Vriens and Roger Beckie (UBC)

11:00-11:30 Case Study of the Influence of Shorter Tips in Mine Rock Storage on Internal Air Flow Capacity. Greg Meiers (Wood E&IS)

11:30-12:00 Practically Achieving Zero Oxygen Conditions: Field Data Collected during Construction of an Integrated Waste Storage Facility at the Martabe Mine. Steven Pearce and Diana Brookshaw (Mine Environment Management) and Ken Grohs, Mathew Orr, Yonatan Kalua and Henny Purnamasari (PTAR)

12:00-12:05 Concluding Remarks

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