f Borehole-to-surface D.C. resistivity and time domain electromagnetics monitoring of contaminant plumes. A model study

Contamination of ground water and soils is one of today's most pressing problem. It has its origin in a number of causes, such as improperly buried wastes, poor effluent disposal and improper use of agricultural and industrial chemicals and spillages. The waste migrate along paths determined by subsurface soil types, stratigraphy and presence of faults, shear zones and fracture zones.