Aquifer system and groundwater potency in coastal area of Kretek, Bantul Regency, Indonesia

Isa, La Ode Saleh and Purnama, Ignasius Loyola Setyawan (2021) Aquifer system and groundwater potency in coastal area of Kretek, Bantul Regency, Indonesia. In: The 2nd Geoscience and Environmental Management Symposium.

[thumbnail of La Ode_GE.pdf] Text
La Ode_GE.pdf - Published Version
Restricted to Registered users only

Download (1MB) | Request a copy

Abstract

The existence of groundwater in coastal areas really needs attention because of its vulnerability to sea water intrusion. Utilization and good management are needed to maintain its sustainability. The purpose of this research is to determine the aquifer system in the study area and to calculate the groundwater potency. The aquifer system is determined by processing geoelectric sounding data using Rockworks 16 software. Groundwater potency is calculated using a static approach. The safe yield of groundwater is calculated by multiplying of groundwater fluctuation, village area and the specific yield. Water requirement is calculated base on domestic, livestock and tourism water requirement. The results showed that the Kretek District had two aquifer units, namely the fluvio marin plains and sand dunes. In the fluvio marin plains, most of the constituent material is sand with clay as inserts, while in the aquifer unit the sand dune has constituent material in the form of unconsolidated sand originating from the Merapi Volcano. The groundwater potency of the study area is 234,448,0000 m3/year and the safe yield is 11,772,400 m3/year. With the water requirement for domestic, livestock and tourism are 555,044 m3/year, the groundwater potency in the study area is still sufficient. However, it is recommended that the well drilling does not exceed a depth of 40 meters, because at several locations there has been detected an interface. In addition, in several locations there were also detected connate water originating from ancient marines during the deposition process of the fluvio marin plains in the past. © The Authors, published by EDP Sciences.

Item Type: Conference or Workshop Item (Paper)
Additional Information: Cited by: 1; Conference name: 2nd Geoscience and Environmental Management Symposium, ICST 2021; Conference date: 7 September 2021 through 8 September 2021; Conference code: 185560; All Open Access, Gold Open Access, Green Open Access
Uncontrolled Keywords: aquifer, groundwater, coastal area, Kretek District, Bantul Regency
Subjects: G Geography. Anthropology. Recreation > GB Physical geography
Divisions: Faculty of Geography > Departemen Geografi Lingkungan
Depositing User: Sri JUNANDI
Date Deposited: 11 Sep 2024 06:38
Last Modified: 11 Sep 2024 06:38
URI: https://ir.lib.ugm.ac.id/id/eprint/5095

Actions (login required)

View Item
View Item