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Dam portfolio risks—a few definitions

Dam portfolio risks—a few definitions aims to bring clarity on terms definitions that oftentimes remain shrouded in mystery. Risk Framework Risk analysis frameworks provide a methodological basis for establishing a transparent and defensible evaluation of the risk generated by a given dam and/or portfolio of dams. They can be qualitative, semi-quantitative or fully quantitative. The framework is essentially a repeatable evaluation scheme which may rely on: quantification of expert judgment, subjective probabilities, empirical/statistical observations or probabilistic models (Stamatelatos et al.…

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Risk definition is paramount amid tailings problem

Risk definition is paramount amid tailings problem. A recent example is the Almaden Ixtaca Project, Mexico. We read in a publicly available information: “The mine plan has a dry stack filtered tailings facility, and co disposal with waste rock with no tailings dam, eliminating the risk of a tailings dam failure.” We salute the effort to reduce from inception a source of multiple hazards and hence risks generated by the tailings dam. However we want to discuss a few notions…

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