Investigasi Geologi dan Geolistrik Untuk Menafsirkan Keberadaan Air Tanah Dangkal Di Ambarawa, Lampung

Abstrak

East Ambarawa has a large agricultural land prosfek for rice cultivation. Limitations of irrigation facilities, caused land fields are only productive in the rainy season. Utilization of ground water to be an alternative to supporting water supply. For this purpose, a geoelectric survey has been conducted to map the presence of shallow groundwater in three lines with random positions using Pole-pole configurations. Through the use of 40 electrodes with a total length of 200 m, geoelectric image is obtained to a depth of 70 m. The presence of ground water is interpreted to be in sedimentary layers, at depths of 12 - 50. Underlying sediment layers are composed of igneous rocks that correlate with the formed Kerawang hill.