(Characteristics of Aquifer Systems in Surface Deposit Formation in Sei Mati Area, Medan City Based on 2D Geoelectrics Methods)

The Sei Mati area has good potential for water resources, due to areas that include the Medan Groundwater Basin. This study aims to determine the potential of groundwater using 2D geoelectric methods with Wenner Schlumberger configuration. The results showed that there were 2 layers of aquifers, namely shallow and deep aquifers. The shallow aquifer layer is at a depth of between 0 50 meters, forming a channel pattern that shows fluvial deposits with a resistivity value of between 5 Ω.m 10 Ω.m with clay sand lithology, but in some places encountered clay channels that are aquicludThe deep aquifer layer is at a depth of 50 meters to 100 meters, with sand lithology.