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CMA Webinar Series



Continue your career development and receive job-critical information when you attend a CMA webinar. Stay tuned as we add more content!






Tuesday, May 5 | 1:00pm MDT | Link to Webinar (Member Login Required)

Worker Safety and Employer Liability in COVID-19 Responses

Recent law suits brought against large employers like Walmart and meat packing plants, claiming that these companies failed to adequately protect employees during the coronavirus outbreak, have highlighted potential liabilities that employers face as more employees begin to return to work and essential industry continues to operate while testing remains scarce. This webinar will highlight the basis for the law suits that have made recent headlines and discuss proactive steps that employers can take to limit their exposure to employee law suits or agency action.


Speaker: Karl Kumli | Associate, Jackson Kelly PLLC



Wednesday, June 10 | 10:00am MDT | Link to Webinar (Member Login Required)

Sustainability in Mining Operations

CMA is pleased to present cutting edge topics to members as Colorado is the home of institutions of higher education, research labs and centers of innovation. Colorado has adopted an aggressive “climate roadmap” and carbon reduction goals. No matter the practicality or merits of such policies, mining will provide the minerals needed to build the infrastructure of a changing energy system. CMA is pleased to introduce two speakers who will introduce important emerging topics to consider as CMA members develop the next generation of mining projects.



Travis Lowder | Project Manager, National Renewable Energy Laboratory's Integrated Applications Center

Charles Cannon | Senior Associate, Rocky Mountain Institute



Tuesday, June 30 | 10:00am MDT | Link to Webinar (Member Login Required)


A Summary of the Technical Causes of  Feijão Dam I Failure in Brumadinho, Brazil

To determine what triggered the failure of Brumadinho’s Dam I and why the failure occurred when it did, a Panel that included Lucas de Melo of Geosyntec, carried out an investigation into the technical causes of the failure. The investigation into the causes of the failure included: (i) evaluating the nature of the materials in the dam and their properties, (ii) assessing the dam construction and operation methods and their impact on the dam and tailings material properties, (iii) assessing the condition of the dam before and during the failure using analyses of available images, such as video, ground-based radar, laser (LiDAR), satellite (InSAR and photographs), drone videos, and (iv) numerically modelling the conditions just prior to failure. The assessment of material properties included sampling and laboratory analysis of materials from the site to allow critical state deformation and stability analyses of the tailings dam structure, and numerical analyses of water flow through the tailings and dam were performed to assess the impact of pore water pressures on the stability of the structure. The Panel’s assessment was informed by detailed assessments of the history of construction, historical geotechnical data, historical instrumentation data, and seismic evaluations of the region around and at the site.


Speaker: Lucas deMelo | Senior Principal, Geosyntec Consultants, Inc.



Wednesday, August 26 | 10:00am MDT | Link to Webinar (Member Login Required)

Updates on Family Leave: What You Need to Know Now

New state and federal leave laws have added to an already complicated framework for employers trying to navigate employee requests for time off from work. This program will examine how those new laws will operate in practice, as well as exploring how to avoid common pitfalls associated with legally required employee leaves of absence.


Speaker: Brett Painter | Davis Graham & Stubbs LLP


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