DISCHARGER AND COLUVIAL SANCTI SPIRIT

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This large complex, covering 37.52 hectares and containing 570,000 cubic meters, is divided into eight zones between the Rambla del Miedo and Rambla de Las Matildes ravines. The Descargador I and II reservoirs are of particular note; their treatment consists of in-situ encapsulation due to their high level of contamination and risk of landslides. The remaining reservoirs will receive either phytostabilization or liming treatment, depending on their composition.

→ Latest developments

The project has been underway since January 2025, with the topographic remodeling work now complete.

• Discharger I: is halfway through the sealing phase, the clay is being implanted.

• Discharger II: the sealing phase is ending, the topsoil is being applied.

Sancti Spiritu Colubial

Located within the Sancti Spiritu complex, in the colluvial zone, this project encompasses work on an area of approximately 3.3 hectares. Its ultimate goal is to protect the first spillway from potential landslides and to correct the hydrology of the Las Matildes ravine. Simultaneously, the project aims to remediate areas containing mining waste near the former La Belleza mine. The works consist of constructing two gabion dams, a stone retaining wall, 35 wooden retaining walls, and building an access road to the mine.

→ Latest developments

• The project has been underway since January 2026. The hydraulic engineering works have begun to be built, and the wooden retaining walls and the first planned gabion dam have already been completed.
• The access road to La Belleza and the plantings have also been completed. The plantings in the area of the hydroelectric excavations are still pending and will be carried out once the construction of the hydroelectric plants is finished.
• The treatment of La Belleza is pending geotechnical and archaeological reports.