Keywords
wells
coliforms
water microbiology
How to Cite
Abstract
The aim of this study was to evaluate the bacteriological quality of groundwater in the west region of the State of Santa Catarina, where it is common the use of private or community wells. The samples were assessed by Multiple Tube Fermentation technique according to methodology described in the American Public Health Association guidelines, and in accordance with Federal Decree 62, 26 August 2003 of Brazilian Ministry of Agriculture and Supply. A data survey was conducted by means a questionnaire which was asked to be answered by persons responsible for the wells. According to the Decree 518/2004 of the Brazilian Ministry of Health, of 212 analyzed water samples, 161 (75.94%) unsuitable for human consumption, as high rates of bacterial contamination were detected. Despite high levels of bacterial contamination in samples, the majority of consumers consider this water of good quality and, therefore only 10% of the consumers used to filter the water and 8% had the habit in boiling it before consumption. Urgent preventive actions should be provided in order to improve the quality of these well-waters, and also to set the adequate treatment of water in contaminated wells.References
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