Integration of Electrical Resistivity and Modified DRASTIC Model to Assess Groundwater Vulnerability in the Surrounding Area of Hulene-B Waste Dump, Maputo, Mozambique

In this study, electrical resistivity was applied in six 400 m profiles around the Hulene-B waste dump (Mozambique). Afterwards, an inversion performed by RES2Dinv. The use of method allowed us to characterize detail some underlying aspects DRASTIC index identifying anomalous zones considered be permeable and prone leachate migration. modified revealed high values areas near contaminated surface groundwater layers vadose zone, characterized low resistivities. Areas with lower results were on depth at which detected. overall result medium vulnerability. However, vulnerability detected higher elevation, suggesting contamination horizontal dilution leachates from surrounding area dump.