The "trash train" circulating between Polpaico and Til-Til, loaded with household waste the capital of Chile (Santiago), transfer to the plant and landfill in Montenegro. KDM is the company responsible for collecting and managing the waste produced in Greater Santiago, and FEPASA is responsible for mobilizing trash to the landfill in Montenegro, a distance of 70 km from the metropolis. Several trains daily, 24 hours a day.
