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USING FMEA TO MANAGE RISKS IN ABANDONED AND FLOODED UNDERGROUND WORKINGS: A CASE STUDY FROM THE VERMONT COPPER BELT
Hadj-Hamou, T., A. Boeckeler, and E. Hathaway. | Technical Sessions: Smart Mining: Resources for a Connected World, 24-27 Feb 2019, Denver, Colorado. p 107, 2019

Failure Mode and Effect Analyses (FMEAs) were performed at three abandoned copper mines within the Vermont Copper Belt in Orange County, Vermont, to evaluate the potential for uncontrolled and catastrophic releases of mine-impacted water associated with flooded underground workings that could subsequently affect the downstream environment/community or pose other health and safety risks. A multi-disciplinary team was used for the FMEA, including a mining historian with expertise in the Vermont Copper Belt, a rock mining geologist familiar with the site lithologies and fracture regimes, a hydrogeologist with expertise in groundwater flow within the abandoned mines, and other mining experts, geotechnical engineers, and government agencies representatives. The FMEA outcome was a document that identified the potential failure modes, assigned a general probability, and assessed the potential consequences. This document is a site planning tool to support an evaluation of future monitoring and cleanup actions. More information: https://semspub.epa.gov/work/01/587373.pdf



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