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Bogotá city council member Antonio Sanguino of the opposition green party has questioned water utility EAAB's tender to build a wastewater treatment facility in the city of Canoas, in Colombia's Cundinamarca department.
According to Sanguino, the 26bn-peso (US$13.7mn) project is a replica of the Salitre wastewater treatment plant, which has been "an environmental, technical and political failure," costing Salitre over a trillion pesos during its 12 years of operation.
In addition, the tender documents contain elements which seek to benefit the few bidders that have expressed interest in the project, local daily El Espetador reported the official as saying.
Of further concern is the lack of clarity in the tender process; a bid submission date has yet to be set and the criteria on which technical and financial evaluations will be based is unclear.
The Canoas plant will treat wastewater in the Fucha and Tunjela river basins. Work is slated to begin by 2014.
The project falls under the central, Bogotá and Cundinamarca governments' Bogotá river sanitation program. The first two stages involve building a 1.6tn-peso wastewater treatment facility and pumping station in the capital city.