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A risky mission

We undertake a risky mission today. That is to reply to information requests we have received from various interested readers in a very concise manner. The risks of the mission mostly arise from: the wide breath of the requests: “please let us know where we could learn about Riskope tailings management activities and methodologies” and the necessity to select among the vast available documentation. A classic preliminary reply We generally start our reply by inviting interested readers to visit Riskope’s…

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Worldwide tailings benchmarks ten years later

A colleague sent us a paper by Rana, Ghahramani, Evans, Small, Skermer, McDougall and Take.  We reference it herein as Rana’s 2022 paper. The title is “Global magnitude-frequency statistics of the failures and impacts of large water-retention dams and mine tailings impoundments”. It is available online since Aug. 3rd 2022 at Earth-Science Reviews (2022), . I must confess at first I was quite intimidated. Almost a decade earlier we had written Factual and Foreseeable Reliability of Tailings Dams and Nuclear…

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Questions on ALARP studies at Tailings 2022

 Readers and conference delegates asked the following Questions on ALARP studies at Tailings 2022 and when they read a case study on ALARP optimization. National regulation compliance Are the results of an ALARP analysis consistent with national regulations and design requirements?  When we perform an ALARP analysis we consider local regulations. These will drive some a priori mitigative selections by the engineer of record. These bear on the nature and aim of mitigation stages  for the ALARP analysis. For instance,…

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A Case Study on ALARP Optimization

A Case Study on ALARP Optimization is the title our paper at Tailings 2022. The combination of probability of failure and consequences generates the potential risks of dams and other structures. Designers and owners should design, mitigate and monitor throughout the life and toward closure of dams. The GISTM indicates an ALARP objective for mitigation. In the paper we use an anonymized case to show how a dam’s probability of failure and risks evolve with its raising. In a second…

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Tailings dams risk mitigation through risk informed decision making

Tailings dams risk mitigation through risk informed decision making (Tailings Dam Risk Mitigation Through Risk Informed Decision Making,) is the title of our PLANNING FOR CLOSURE 2022 paper.   Risk Informed Decision Making (RIDM) supports rational and sensible risk mitigation This blogpost shows how Risk Informed Decision Making (RIDM) using ORE2_Tailings™ supports rational and sensible risk mitigation selection. This is a requirement of the Global Industry Standard on Tailings Management (GISTM). We use an anonymized case report to preserve confidentiality.…

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TCFD and TNFD for mining

TCFD and TNFD for mining: concepts, examples and caveats, is the paper we presented at #CIMBC22 Mineral Economics and Finance. Photograph provided by: Adolfo Tribst Corrêa We asked the audience if they were familiar with the: Task Force on Climate Related Financial Disclosure (Task Force on Climate-Related Financial Disclosures | TCFD) (fsb-tcfd.org) and Task Force in Nature-related Financial Disclosure (TNFD – Taskforce on Nature-related Financial Disclosures). Only a couple hands rose. Significant points of our discussion on TCFD and TNFD for…

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FUV vs RIDM friends or foes at CIMBC22

FUV vs RIDM friends or foes at CIMBC22 sounds like a riddle, right? But it is not! Please, note FUV was actually never written as an acronym. Actually FUV stands for firmitas, utilitas, et venustas in Latin language.  Today we freely translate the terms into English as reliability, serviceability and beauty, straying a tad away from the original meaning. However, Henry Wotton, a seventeenth century translator, coined “firmness, commodity, and delight” as essential components of all successful architectural design. Wotton remained faithful…

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World-wide ORE2_Tailings quantitative risk assessment experience

Riskope’s world-wide ORE2_Tailings quantitative risk assessment experience can be summarized in one single graph we will show below. ORE2_Tailings™ (©Riskope, 2014-*) is a subset of ORE (Optimum Risk Estimates) which is a “universal” platform for quantitative risk assessments, ERM we deploy for: mining, i.e. tailings, open pits, transportation, forestry and finally suppliers. We have deployed ORE for hundreds of operations worldwide. Today we will focus on tailings storage facilities. Sample portfolio for ORE2_Tailings™ performance summary  We selected a sample portfolio…

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