Electrical Resistivity Survey

Resistivity surveying measures how readily the ground conducts current, which changes sharply between dry soil, saturated sand, clay and rock. Interpreting that contrast gives you a layered picture of the subsurface without a single borehole.

We run vertical electrical sounding where a one-dimensional layer model is enough, and two-dimensional imaging where lateral variation matters — a fracture zone, a saline wedge, or a landfill plume. Field data is inverted in RES2DINV or IPI2Win and interpreted alongside available lithological logs.

What you receive

• Field data sheets and apparent resistivity curves for every sounding
• Inverted 2D pseudo-sections with the model fit statistics reported
• Layer model giving depth, thickness and resistivity of each interpreted unit
• Interpretation report correlating resistivity with likely lithology
• Drilling recommendation with depth range and expected yield zone, where the scope is water supply

Specification

Typical applications

• Borewell siting and yield assessment
• Bedrock depth for foundation design
• Saline intrusion and contamination mapping
• Landfill and dump-site investigation
• Aquifer geometry for groundwater studies