Under challenging conditions such as those of the coastal desert of San Juan de Marcona, ensuring the waterproofing of tailings dams in mining projects requires high technical performance and operational efficiency. For Stage II of the Tailings Dam at the Mina Justa Project, approximately 20 hectares were waterproofed using geomembranes designed to provide a reliable and durable barrier against tailings seepage.

These geomembranes are characterized by their high resistance to chemical and physical degradation, allowing them to maintain long-term integrity in aggressive environments.

Their rapid installation optimized resources and construction schedules, while their flexibility allowed adaptation to site geometry. As a result, this solution not only reinforces the project’s environmental safety, but also adds value in terms of sustainability and impact control within one of the most sensitive stages of the mining process.

Within the framework of environmental liability closure in Peru, the Excélsior Project became one of the most representative mining remediation processes in Peru and Latin America.

Located in Cerro de Pasco, this facility accumulated more than 55 million tons of waste over an area of 69 hectares. The implemented solution included integrated actions addressing physical, chemical, and hydrological stability to mitigate contamination risks in the area.

The cover system incorporates low-permeability geomembranes and materials resistant to physical and chemical degradation, ensuring an effective barrier against acid drainage generation.

In addition to its high technical performance against chemical agents, this solution represents a sustainable measure that optimizes natural resources and improves environmental quality in areas impacted by mining activity.

Under challenging conditions such as those of the coastal desert of San Juan de Marcona, ensuring the waterproofing of tailings dams in mining projects requires high technical performance and operational efficiency. For Stage II of the Tailings Dam at the Mina Justa Project, approximately 20 hectares were waterproofed using geomembranes designed to provide a reliable and durable barrier against tailings seepage.

These geomembranes are characterized by their high resistance to chemical and physical degradation, allowing them to maintain long-term integrity in aggressive environments.

Their rapid installation optimized resources and construction schedules, while their flexibility allowed adaptation to site geometry. As a result, this solution not only reinforces the project’s environmental safety, but also adds value in terms of sustainability and impact control within one of the most sensitive stages of the mining process.

Within the framework of environmental liability closure in Peru, the Excélsior Project became one of the most representative mining remediation processes in Peru and Latin America.

Located in Cerro de Pasco, this facility accumulated more than 55 million tons of waste over an area of 69 hectares. The implemented solution included integrated actions addressing physical, chemical, and hydrological stability to mitigate contamination risks in the area.

The cover system incorporates low-permeability geomembranes and materials resistant to physical and chemical degradation, ensuring an effective barrier against acid drainage generation.

In addition to its high technical performance against chemical agents, this solution represents a sustainable measure that optimizes natural resources and improves environmental quality in areas impacted by mining activity.