Bacias hidrográficas urbanas: O reflexo da precarização do saneamento em Manaus, Amazonas – Brasil.

In Manaus city, Amazonia’s metropolis, the serious problems of basic sanitation, point out the management political inefficiency of the environmental quality of the urban waters. In this sense, the Giant’s river basin, selected for this study, constituted the basis of a cartographic analysis and the sampling of this problem. The results prove that between 75,1% to 95% of the households located in places closer the river source, uses the rudimentary cesspool to the sanitary sewage. The use of wells to the water supply, in regions adjacent to cemeteries and airports, reached 100%, causing insecurity on this type of consumption. About the garbage collection, while in the households located in the upstream have 100% of the waste is collected, in the sectores close the river mouth, the collect is absent. The per capita income of ½ until 1 salary, was spatially distributed throughout the basin area, denoting serious socioeconomic inequalities. The environmental problems related to basic sanitation issues becomes a risk to the health population that resides in sectores delimited by basin. Keywords: Hydrography, Manaus, Basic Sanitation.