Resistivity Testing is a non-invasive geophysical method used to evaluate the electrical properties of the subsurface. At Infinity Geotechnical Services Kenya, we utilize resistivity testing to map soil and rock layers, detect groundwater, and identify potential subsurface anomalies. This technique is especially useful in identifying variations in soil composition, moisture content, and potential voids or fractures. The data gathered from resistivity testing helps inform decisions regarding foundation design, site selection, and overall project feasibility.