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CCI Branch Lunch & Learn: Metal Leaching and Acid Rock Drainage (ML/ARD)

September 13, 2022 - 12:00pm to 1:00pm(PDT/PST)
BCIA Online Zoom
Cariboo Central Interior-District 1
PD hours: 

CCI Branch Invites you to attend a lunch & learn event on Metal Leaching and Acid Rock Drainage

  • When: September 13th, 12PM - 1PM PST
  • Where: Virtual – BCIA Hosted Zoom
  • Presenter: Alexander Kaul, P. Geo, Senior Environmental Geoscientist, Major Mines Office, Ministry of Energy, Mines and Low Carbon Innovation

Event Summary: Metal Leaching and Acid Rock Drainage (ML/ARD) are the new buzzwords around town. Although these terms have been around only for a few decades, ML/ARD has been an environmental issue for as long as there have been rocks. Starting in the 1980s, ML/ARD was starting to be recognized as an environmental issue on major mining projects. Research has come a long way since then, and ML/ARD is starting to be a talking point not just in the case of mining sites but any disturbance of rock. Major civil construction projects such as highway cuts or pipelines have the potential to also encounter rock with ML/ARD potential. Because it is so widespread, a general understanding is required to have a better appreciation of how to identify ML/ARD signs and potentially mitigate the effects of it.

This presentation is aimed to provide a high-level overview of what ML/ARD is, what it can cause and how to spot signs for it. Hopefully, by the end of this one-hour session, participants will have a better understanding of what to look out for and will be able to better communicate the potential issues in ML/ARD studies. The main goal is to understand that there is more to understand in ML/ARD than having the lab analyze a rock sample and calculating a few ratios followed by saying acidic drainage or no acidic drainage. The actual answer is a lot more convoluted and may surprise you.

Presenter Bio: Alexander Kaul (P.Geo.) holds a degree in Geology and is currently working as a Senior Environmental Geoscientist with the Major Mines Office of the Ministry of Energy, Mines and Low Carbon Innovation. His main area of expertise is geology/geochemistry, and he is responsible for the review of ML/ARD and geoscience information provided by major mines for regulatory permitting requirements. Alex has worked in the mineral exploration, mining and consulting industry for over a decade prior to joining the Public Service. Alex has worked with Golder Associated Ltd/WSP as a Geochemist for close to 9 years dealing with contaminated sites assessment, hydrogeologic baseline characterizations and ML/ARD assessments. Alex has extensive experience with civil construction, industrial and major mining projects.

Non BCIA Registrants please email the Provincial Professional Development Coordinator to register: seija.laukkanen@bcia.com