Study of vulnerability to contamination of the Ribeirão Claro hydrographic basin’s northern portion, SP, Brazil

Authors

  • Felipe Pereira de Sisto Universidade Estadual Paulista Júlio de Mesquita Filho. Programa de Pós-Graduação em Geociências e Meio Ambiente
  • Fábio Augusto Gomes Vieira Reis Universidade Estadual Paulista Julio de Mesquita Filho. Institute of Geosciences and Exact Sciences
  • Lucilia do Carmo Giordano Universidade Estadual Paulista Julio de Mesquita Filho. Institute of Geosciences and Exact Sciences
  • Alan de Oliveira Universidade Estadual Paulista Julio de Mesquita Filho. Institute of Geosciences and Exact Sciences

DOI:

https://doi.org/10.11606/issn.2316-9095.v18-136928

Keywords:

Vulnerability, Rio Claro Aquifer, Geotechnical testing, Hydraulic conductivity

Abstract

Because it is an unconfined aquifer and is relatively close to the surface, Rio Claro Aquifer becomes an easy target for infiltration of contaminants from various sources. The present paper aims to study the vulnerability of the upper layers of the soils on the Ribeirão Claro hydrographic basin’s north section. A contamination vulnerability map was created, relating the geology and the use and occupation of the soil in the area. Furthermore, in situ geotechnical testing was performed using the Guelph Permeameter, alongside with the collect of deformed and undeformed soil samples of the Rio Claro Formation, in order to perform laboratory geotechnical testing and obtain material physical parameters and its grain size, as well as its sedimentation rate. With the obtained results, it can be concluded that the hydraulic conductivity of the Rio Claro Formation’s soils is heterogeneous, a reflex of its composition. The contamination vulnerability for the aquifer area obtained in this paper is, in general, high.

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Author Biography

  • Felipe Pereira de Sisto, Universidade Estadual Paulista Júlio de Mesquita Filho. Programa de Pós-Graduação em Geociências e Meio Ambiente

    Geólogo, formado pela Universidade Estadual Paulista Júlio de Mesquita Filho - UNESP. Atualmente aluno de mestrado no programa de Geociências e Meio Ambiente.

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Published

2018-10-03

Issue

Vol. 18 No. 3 (2018)

Section

Articles

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How to Cite

Sisto, F. P. de, Reis, F. A. G. V., Giordano, L. do C., & Oliveira, A. de. (2018). Study of vulnerability to contamination of the Ribeirão Claro hydrographic basin’s northern portion, SP, Brazil. Geologia USP. Série Científica, 18(3), 33-44. https://doi.org/10.11606/issn.2316-9095.v18-136928