Geostatistical Characterisation of Aquifer Heterogeneity Around Two Urban Landfills Using Lithological and Geophysical Data

Abstract

In many areas, sites selected for the disposal of urban waste are inadequately investigated from a hydrogeological standpoint due to data limitations. This can be particularly problematical in areas where karst conditions or coarse granular materials can provide preferential pathways for contaminants. Studies in Portugal demonstrate the value of geostatistical techniques for making optimal use of available borehole and geophysical data. Indicator Gcostatistics is a non-parametric approach that proves to be particularly promising in this regard.