Bonotto, Daniel Marcos [UNESP]De Lima, Jorge Luis Nepomuceno2014-05-272014-05-272007-12-01IAHS-AISH Publication, n. 314, p. 197-204, 2007.0144-7815http://hdl.handle.net/11449/70163The waters of Corumbataí River in the middle and eastern part of São Paulo State, Brazil, are extensively used for human consumption; their water quality has been modified mainly due to increasing pressure caused by population growth, accompanied by a more accentuated industrial development for the whole São Paulo State in the early 1970s. The Corumbataí River basin has, over time, received significant emissions of municipal waste products and discharges of wastewater, sludge, sewage, sanitary and industrial effluents, but the first effluent treatment plant at Rio Claro city was only inaugurated at the end of the 1990s. Data on river water quality from two widely spaced locations in the Corumbataí River basin are reported in this paper; they indicate the need for continuous initiatives and efforts by decision makers in order to improve and preserve the water quality in the basin for the 21st century. Copyright © 2007 IAHS Press.197-204engCorumbataí river basinPhysical and chemical parametersRainwaterSurface waterWater qualityEarth sciencesEffluent treatmentForecastingIndustrial emissionsIndustrial waste treatmentPopulation statisticsRiversSedimentationSedimentologySewageSewage treatmentWaste treatmentWastewaterWastewater treatmentWater treatmentWatersheds21st centuriesDecision makersEffluent treatment plantsHuman consumptionsIndustrial developmentsIndustrial effluentsMunicipal wastesPopulation growthsRiver basinsRiver water qualitiesEffluentsdecision makingrainwaterriversurface waterwaste disposalwater qualityBrazilCorumbatai BasinSao Paulo [Brazil]South AmericaTrabalho apresentado em eventoAcesso aberto2-s2.0-557490934297430102726026121