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Dam portfolio ORE2_Tailings support for ICMM standard on tailings management.

Dam portfolio ORE2_Tailings support for ICMM standard on tailings management (GISTM) is multifaceted. ORE2_Tailings™ is a risk assessment platform specifically Riskope designed specifically for tailings systems. When we deploy it to a portfolio of dams, possibly over multiple properties, it allows for tactical and strategic planning. We have already discussed the single dam case in relation to ICMM • Global Industry Standard on Tailings Management (2020)  and the conformance protocols. Today we present an example of deployment at portfolio level.…

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Risk tolerance for tactical and strategic planning

We discuss risk tolerance for tactical and strategic planning using an excerpt from a case study in our forthcoming book. The title is Convergent Leadership – Divergent Exposures and the case study is in Chapter 16. In the book we include three complete case studies with different level of information and requirement. Setting of the case study covering risk tolerance for tactical and strategic planning Kryptonite corp. has three plants shipping bulk material through a wharf called Terminal reached by railroad…

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Tolerable risk thresholds

Tolerable risk thresholds, aka risk tolerance are always project and owner-specific. They indicate the level of risk which has been deemed acceptable for a specific project or operation. Furthermore, tolerable risk thresholds and appetite for risk is quite different for various key stakeholders, for instance: Mine owner, Regulatory Bodies, Adjacent Communities, etc.   So how can one manage the sometimes divergent tolerable risk thresholds between stakeholders? Additionally, a topic that comes regularly in the mining world is diverging risk tolerance among…

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Reading the ICMM Guidance and Conformance protocols

We started reading the ICMM Guidance and Conformance protocols with great interest and were pleased with a number of specifications we saw. Of course, an endeavor of this magnitude and scope will stir a lot of interest in the mining world. From our end, given our long experience in tailings system risks, we could not resist to compare the protocols to our day-to-day practice. We noted areas where more detailed explanations would likely benefit the mining industry and the public.…

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Comments on a risk assessment tool for tailings storage facilities

A colleague of ours asked for comments on a risk assessment tool for tailings storage facilities paper by Chovan et al (A risk assessment tool for tailings storage facilities (cdnsciencepub.com)). We accepted and decided to prepare this piece. The reason is that we have seen various other attempts by reputable engineering companies to use similar methodologies leading to similar comments from our end. The application of simplified methodologies, or unproven approximations in the field of tailings dams could harm people…

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India dam break Facebook and fake news

India dam break Facebook and fake news finds its inspiration in a series of very recent events. Very unfortunately one of them, the Rishiganga dam collapse (https://www.bbc.com/news/world-asia-india-55969669), was mortiferous.  World-wide water storage structures are ageing A report by UNU-INWEH,  Ageing Water Storage Infrastructure: An Emerging Global Risk, provides an overview of the phenomenon. Indeed tens of thousands of existing large dams have reached 50 years of age. In addition, many others will approach 100 years. For instance, UK has the…

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Holistic Geoethical Slopes’ Portfolio Risk Assessment in Geological Society

We are proud to publish Holistic Geoethical Slopes’ Portfolio Risk Assessment in Geological Society, London, Special Publications, 508. We want to personally thank Giuseppe Di Capua of IAPG for inviting us. Here is a summary of what we discuss in our paper Landslides of natural and man-made slopes, including dykes and dams represent hazardous geomorphological processes that generate highly variable risks. To optimize a slope mitigation approach, one has to combine the probability of failure and the cost of consequences…

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Strategic operational and tactical planning for tailings hydro dams

We are learning that structural integrity of hydro dams is also becoming an issue. Thus, similarly to tailings dams, we need a strategic operational and tactical planning for tailings hydro dams! Karl Terzaghi, American Society of Civil Engineers, “Terzaghi Lectures, 1974-1982,” American Society of Civil Engineers (1986) ISBN 0-87262-532-X. proposed that a dam rating system should provide ALL of the following: A logical framework for rating the relative safety of a dam Allow for the use of judgment and experience…

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