Bonotto, Daniel Marcos [UNESP]de Oliveira, E. G. [UNESP]2014-05-272014-05-272011-12-01WIT Transactions on Biomedicine and Health, v. 15, p. 279-289.1743-3525http://hdl.handle.net/11449/72898This investigation reports the results of a study realized in an area related to the development of sand mining activities, which belongs to Sibelco Mineração Ltd. The site is located around Analândia municipality, nearly in the center of São Paulo State, Brazil. Hydrochemical analyses of groundwater were realized under different periods of time, with the aim of evaluating the possibility of release of several constituents to the liquid phase, which may be a source of pollution of the surface hydrological resources and of the deeper Guarani aquifer. This is because the site is located at the recharge area of Guarani aquifer and some tributaries from Corumbataí river may also be suffering contamination, implying on the impoverishment of the water quality that are very important resources in the region, as they are extensively used for drinking purposes, among others.© 2011 WIT Press.279-289engElemental concentrationsGroundwaterSão Paulo stateSand mining activitiesTrace and heavy metalsWater qualityGround-water qualitiesGuarani aquiferHydrochemical analysisHydrological resourcesLiquid PhaseRecharge areaSand miningAquifersEnvironmental engineeringGroundwater resourcesHeavy metalsRiver pollutionWaste disposalGroundwater pollutionTrabalho apresentado em evento10.2495/EHR110251Acesso aberto2-s2.0-848651293727430102726026121