The Mexican state-owned company Sistema de Aguas (SACM) has been repairing the drainage system in the Mexico City to improve service, Carlos Garcia Martinez, spokesman for the company, told Xinhua on Thursday.
The repair work, which was started last year, is a part of a large project to improve water management in the city to avoid flooding in rainy seasons, said Garcia.
The repair work is divided into different stages with regard to the damage degree of the pipelines, Garcia said, adding that the government has been working on what they called area L8A located in the east of the city since last November. The work is expected to be finished on April 7.
The current drainage system in the Mexico City was built in 1975, which was originally used to collect rain water, but now it also collects black sewage and industrial wasted water, said Garcia, noting that the system has never been repaired.
The mix of different kinds of waste water has damaged the drainage system and many parts of the city, particular its northeastern regions, have been suffering from floods even during dry seasons.
The repair work is important and will benefit all the citizens, Martin Ramos Perez, who is in charge of repairing the L8A tunnel, told Xinhua.
Some 95 million U.S. dollars and about 3,400 people have been assigned to repair the L8A zone, said Adrian Quevedo, office director of SACM, noting that the improved drainage system can be used for more than 50 years and is able to collect 35,000 liters of water per second in dry seasons.