Refurbishment, cleaning and conservation work for the catchment and adduction facilities that make up the EMASESA Adduction System, the El Carambolo, El Garrobo and El Ronquillo treatment plant, hydroelectric power plants, wastewater treatment and pumping stations, rainwater pumping stations.

Refurbishment, cleaning and conservation of the catchment and adduction facilities (dams, intake works, pumping stations and pipelines (La Minilla canal and Gergal-Carambolo pipeline, Melonares pipeline, among others) that make up the EMASESA Adduction System, the El Carambolo treatment plant, El Carambolo Garrobo and El Ronquillo, hydroelectric power plants (Minilla, Aracena and Zufre), wastewater treatment and pumping stations, rainwater pumping stations.