This paper studies the apparent ground resistivity in two-horizontal layer ground and in
two-vertical layer ground through the site measurements obtained. Wenner method was used to
measure apparent ground resistance in different grounds. A numerical model was proposed to
model the four electrode buried in ground. The apparent ground resistivity had been studied for
different conditions which are two-horizontal and -vertical layer grounds. Field measurements
had been done in various sites close to water channel and also far away from any apparent
vertical layer ground. Generally, the calculated results agreed with the measured results.
Analytical calculations had been proposed to distinguish between two-horizontal and
two-vertical layer ground.