SIMULATION OF GROUND WATER CONTOUR AT COASTAL AREA
SOUTH SULAWESI
Ahmad Munir 1, Syamsuddin 2, C. Suhardi and Mahmud Achmad3
ABSTRACT: Groundwater intakes in Jeneponto coastal area which were not considering the existing groundwater
potential. Therefore, in-depth studies of ground water potential in Jeneponto coastal areas are needed to describe in
detail groundwater potential. The study aimed to identify groundwater level dynamics, to know and describe the
change of groundwater level contour due to pumping and to visualize groundwater flow directions at Jeneponto
coastal areas with a five-year prediction.To obtain the results according to the aims mentioned, groundwater
modeling with the Visual Delphi 5.0 program was conducted. The inputs of the program were hydraulic
conductivity, hydraulic head, recharge, pumping discharge scenario, evapotranspiration, time interval of
observations and grid size. The outputs of the model were groundwater level change dynamics, groundwater level
contour map and groundwater flow directions.The results shown that in Jeneponto coastal areas in the districts of
Bangkala, Tamalatea, Binamu, Arungkeke, Batang and Tarowang, there were groundwater level fluctuations due to
pumping. Some parts of the area had the risk of groundwater level declining from water table. From the analyses,
the average of ground water level declining .Based on contour map, the directions of groundwater flows for all
Jeneponto coastal area. The groundwater flow pattern majority moved toward the coast. The pattern of groundwater
flow in some areas with wells moved to the wells, showing the high intensity of groundwater in takes in those areas.
Keywords: Ground water, coastal and computer program
1
Vice Dean for Academic Affair, Faculty of Agriculture University of Hasanuddin
Post Graduate Student at the Department of Civil Engineering, Univ. of Hasamnuddin
3 Department of Agriculture Engineering, University of Hasanuddin Makassar Indonesia
date
2