Revealing the Appearance of Ground Water Based on Geoelectric Data in Candidasa Karangasem Regency, Bali Propince

Abstract: Candidasa is an area located in Bugbug Village, Karangasem Regency, Bali Propince, with a geographical position around 8.5110300 S, 115.5723570E. Geologically the rocks are alluvium and limestone. In Candidasa there is a pool with an area of 15,165.15 m2 and there are islands in it with an area of 992.94 m2. This poolhas many springs (appearance of ground water). Elsewhere, it is still in the Candidasa neighborhood, 229 m east of the large poool, at position 8.5112810S, 115.5743330E is a spring. This spring is able to release ground water throughout the yearboth in the rainy season and in the dry season, the water continues to flow. For this reason, it is necessary to reveal the condition of this spring, hopes that in the future this water source can be explored as new a source of drinking water, given the increasingly critical sources of fresh water available. Revealing of the appearance ground water in this research is based on geoelectric data. Geoelectric data retrieval activities were carried out in May 2017 - June 2017. The result is that the condition of springs in Candidasa due to the presence of rock fractures in the area. Whereas the source of water comes from upstream which flows to the source of the spring through the aquifer grooves. The flow of this aquifer is covered by rocks. Proof of the existence of aquifers covered by rocks can be seen based on the results of drilling at two upstream sites.