Mexico City's government has failed to provide studies, information or proposals for the development of an alternative sanitary landfill in advance of the proposed closure of the Bordo Poniente landfill, according to national water commission Conagua.
The agreement to close the landfill requires that the government develop a program for managing the waste, the closure and cleanup of the site, and managing biogas and lixiviates, the commission said in a statement.
"These failures concern us because uncontrolled or untreated lixiviates can infiltrate into the subsoil," said Conagua's director of the Mexico valley basin, Miguel Ángel Vázquez.
Conagua will not permit the dumping of waste at the site after January 1, the statement said.
The commission may impose a fine on the capital's government for every additional ton of waste delivered to the site above the limits laid out in an agreement signed last year between the federal and DF governments. Conagua estimates this at 20mn pesos (US$1.45mn) a month.
Bordo Poniente, one of the largest landfills in the world, is scheduled to close by December 31.