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Depth and Well Type Related to Groundwater Microbiological Contamination

Author

Listed:
  • Nayara Halimy Maran

    (Faculty of Exact Sciences and Technology, Federal University of Grande Dourados, Dourados, MS 79804-970, Brazil)

  • Bruno Do Amaral Crispim

    (Faculty of Exact Sciences and Technology, Federal University of Grande Dourados, Dourados, MS 79804-970, Brazil)

  • Stephanie Ramirez Iahnn

    (Faculty of Health Sciences, Federal University of Grande Dourados, Dourados, MS 79804-970, Brazil)

  • Renata Pires de Araújo

    (Faculty of Biological and Environmental Science, Federal University of Grande Dourados, Dourados, MS 79804-970, Brazil)

  • Alexeia Barufatti Grisolia

    (Faculty of Exact Sciences and Technology, Federal University of Grande Dourados, Dourados, MS 79804-970, Brazil
    Faculty of Biological and Environmental Science, Federal University of Grande Dourados, Dourados, MS 79804-970, Brazil)

  • Kelly Mari Pires de Oliveira

    (Faculty of Health Sciences, Federal University of Grande Dourados, Dourados, MS 79804-970, Brazil
    Faculty of Biological and Environmental Science, Federal University of Grande Dourados, Dourados, MS 79804-970, Brazil)

Abstract

Use of groundwater from private wells in households has increased considerably, owing to a better cost/benefit ratio than that of water provided by local utilities for a fee. However, this water is usually untreated, which makes it a vehicle for diseases. Thus, monitoring this water is necessary to ensure its integrity and quality. We aimed to evaluate the physical, chemical, and microbiological parameters of untreated groundwater drawn from different types of wells, and the antimicrobial susceptibility profile of the bacteria isolated from this water. Wellwater samples were collected in two Brazilian cities. Although physical and chemical parameters of the water were suitable for drinking, Escherichia coli was detected in 33% of the samples. E. coli contaminated 65% of dug wells and 10.25% of drilled wells. Many bacteria isolated were resistant to multiple antibacterial agents, including β-lactams. Microbial contamination of this water was related to the well depth, and was more common in dug wells, making this water unfit for human consumption. Consumption of such contaminated and untreated water is a public health concern. Thus, individuals who regularly use such water must be alerted so they may either take preventive measures or connect to the water distribution system operated by local utilities.

Suggested Citation

  • Nayara Halimy Maran & Bruno Do Amaral Crispim & Stephanie Ramirez Iahnn & Renata Pires de Araújo & Alexeia Barufatti Grisolia & Kelly Mari Pires de Oliveira, 2016. "Depth and Well Type Related to Groundwater Microbiological Contamination," IJERPH, MDPI, vol. 13(10), pages 1-9, October.
    • Handle: RePEc:gam:jijerp:v:13:y:2016:i:10:p:1036-:d:81147
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    References listed on IDEAS

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    1. Ma. Carmen E. Delgado-Gardea & Patricia Tamez-Guerra & Ricardo Gomez-Flores & Francisco Javier Zavala-Díaz de la Serna & Gilberto Eroza-de la Vega & Guadalupe Virginia Nevárez-Moorillón & María Concep, 2016. "Multidrug-Resistant Bacteria Isolated from Surface Water in Bassaseachic Falls National Park, Mexico," IJERPH, MDPI, vol. 13(6), pages 1-15, June.
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