Pilot project: mining legacies "La Cienaga" in Peru

SUMMARY

In 2016, MinSus conducted an environmental sampling in five abandoned tailings deposits in Pataz, a district in the Department of La Libertad in the Andean Sierra of Peru. These environmental liabilities are a result of the former gold mining activities in the region. Today, nobody is responsible for their remediation. The sampling led to two conclusions: 1) the tailings represented a significant risk to the health of the population and the environment, as heavy metals and metalloids such as lead, cadmium and arsenic were found with concentrations significantly exceeding those of International and the Peruvian Environmental Quality Standards for Soils (ECA Suelos); and 2) the tailings still contained gold. Since then, BGR has conducted a series of additional investigations to characterize the tailings, including detailed sampling, granulometric, chemical and mineralogical analyses. In addition, specialized tests have been initiated to determine the technical feasibility of reprocessing the tailings to obtain the valuable metals in these wastes.

Proposals have been prepared for the rehabilitation of the mining legacies, with support being provided to the multi-stakeholder working group that has been formed for the remediation of the La Ciénaga site.

SDGs INVOLVED

PUBLICATIONS

EVENTS

19 MARZO, 2019

Relave minero de La Ciénaga será recuperado para uso deportivo y recreativo

Con apoyo de la Cooperación Alemana, como facilitador, el Gobierno Regional de La Libertad se propone recuperar el relave minero de la Ciénaga
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31 ENERO, 2019

Taller en La Libertad (Perú)

Dicho taller contó con la participación de la pobladores y autoridades del Ministerio de Energía y Minas, Gobierno Regional La Libertad, Municipalidad Distrital de Pataz y otras autoridades y líderes sociales de la zona.
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30 JULIO, 2018

Presentación y discusión de resultados y alternativas de remediación de los pasivos ambientales mineros en La Ciénaga-Región La Libertad

Después de dos años y medio de trabajo, la Cooperación Técnica Alemana entregó, a los tres niveles de gobierno, los resultados de la investigación
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MEDIA