Sustainability r e p o r t - Sabesp

New Graça dam. Campo Limpo compact WTP. Hortolândia STP.Construction of the new Graça dam – High Cotia waterproduction systemIn November 2009, we completed the construction of the new Cachoeira da Graça dam,which is part of the High Cotia water production system, in the Cotia municipality.We invested own funds totaling R$6.1 million in the new dam. This dam replaces theformer structure, built in 1917, which was at the end of its useful life, and thus ensureswater supply to the approximately 400,000 inhabitants of Cotia, Embu, Itapecerica daSerra, Embu-Guaçu and Vargem Grande.This investment increases operating safety, and we have installed instruments thatwill allow its remote operation from the Cotia Water Treatment Plant, more than onekilometer away from the dam.Improves water supply in São Bernardo do CampoSince 2004, when we resumed supplying water to this city, we have already investedabout R$72 million in environmental sanitation improvements.In the coming ten years, we estimate investing another R$480 million in the city toensure the provision of universal services and focus on the increase of sewage collectionand treatment.One of the works that will contribute to attaining this goal is the construction ofthe Vila Marchi-Alvarenga watermain. The watermain will be built in two steps. Thefirst step, completed in September 2009, consisting of a 2.3-kilometer pipeline thatincreased water supply to the Demarchi, Batistini and Alvarenga districts. During thisphase, investment totaled R$3.6 million, using own funds. The second step will consistof a 4.3-kilometer pipeline, an investment of R$9.1 million financed by Caixa EconômicaFederal. The second stage works are in progress since September 2008 and completionis scheduled for the first half of 2010.Compact water treatment system in Campo Limpo PaulistaThe compact water treatment plant opened in May 2009 is a new installation and swiftbuilding concept, completed in less than one year. It consists of four prefab modules,it has the capacity to treat 180 liters per second, and the process is controlled in alaboratory that analyzes water quality instantly.Initially, the system is intended to supply part of the water to Campo Limpo Paulistaand Várzea Paulista, while the main plant undergoes refurbishment and expansionworks, totaling investments of more than R$10 million. We estimate that in the secondhalf of 2010, both facilities will work complementarily, to reach the output of 700 litersper second supplied to both cities.Hortolândia sewage systemIn June 2009, we inaugurated the Hortolândia sewage system, the first step to thedecontamination of six delimited micro-watersheds that feed the Jacuba river, whichis part of the Piracicaba and Tietê-Sorocaba river basin. This investment will increasethe quality of life of more than 200,000 people and result in improvements to theenvironment and the socio-economic development of the entire region. During thisfirst stage, more than R$37 million were invested in the construction of the sewagetreatment plant, we laid 17,690 meters of sewage mains, and connected 10,000households to the sewage system, among other accomplishment.Currently, 100% of the region’s population has access to the supply of drinking water.With the completion of stage one of the sewage system, 20 percent of the wastewaterproduced is collected and treated, and by 2012, we intend to include the city in thegroup of municipalities with universal water and waste services.46 Relatório de Sustentabilidade 2009 47