National Landfill Sanitation and Landfill Construction Plan. Among the achievements of the Plan are:. Landfill sanitation. Construction of landfills. Construction of transfer stations. Recovery of final disposal sites. The proper operation of the final disposal sites for waste and solid waste minimizes the occurrence of infectious diseases (vector diseases), while allowing the controlled capture of CH 4 generated, establishing conditions for the short-term implementation of a system for their elimination.