ABSTRACT

Failure rate of tailings dams worldwide has been estimated to be more than two orders of magnitude than that of conventional water retention dams. In countries with limited resources, it is challenging for the authorities to be able to effectively monitor these sites, especially when located in remote areas. We are developing a system, DAMSAT, for a more cost effective way of remotely monitoring tailings dams. We are measuring the displacement of the structures using a combination of Interferometric Synthetic Aperture Radar and Global Navigation Satellite System technologies combined with real-time in-situ devices. We also use Earth Observation optical data for monitoring pollution indicators. Data analysis and weather forecasting tools support the monitoring, allowing the issue of alerts for unusual behaviour or weather conditions that could lead to failure. The risks of tailings dams failures are also evaluated. We are working with mining companies, local governments and private stakeholders in Peru to test our approach on a number of sites. DAMSAT contributes to a sustainable management of tailings storage facilities, reducing the risk and the consequent damage to population and ecosystem services downstream, upon which many vulnerable communities rely for both their source of water and livelihoods.