Mapping the contamination risk of the Serra Geral aquifer system in the municipality of Chapecó (SC

Published
2017-08-29
DOI: https://doi.org/10.14295/ras.v31i4.28864
Keywords: Vulnerability. Hazard. Planning. GOD. POSH. Vulnerabilidade. Perigo. Planejamento. GOD. POSH.

    Authors

  • Mirianne Ugolini Goulart Soares Universidade Federal da Fronteira Sul
  • Aline de Almeida Mota Universidade Federal da Fronteira Sul

Abstract

The objective of this work was to map the vulnerability, hazard and risk to contamination of the Serra Geral Aquifer System in the municipality of Chapecó, by applying the GOD, POSH and map algebra methods, respectively. For this, information on hydrogeology, pedology and static level of wells drilled in the region and registered in the Groundwater Information System was used. Through the GOD method, the vulnerability of the Serra Geral aquifer system was estimated as low in approximately 90% of the municipal area. However, 57% of the area of the municipality and 83% of the urban perimeter were classified as high hazard. As a result, approximately half of the Serra Geral Aquifer System area in the municipality has a high risk, and in the urban perimeter this percentage is even higher, 71%. These results demonstrate the need for adequate planning about the location of both new wells and anthropogenic activities. The maps elaborated can be used as a tool for the territorial planning of the municipality.

How to Cite
Soares, M. U. G., & Mota, A. de A. (2017). Mapping the contamination risk of the Serra Geral aquifer system in the municipality of Chapecó (SC. Águas Subterrâneas, 31(4), 299–309. https://doi.org/10.14295/ras.v31i4.28864