Groundwater aquifer study on coal mining area: a case of North Samarinda, Indonesia
One of the sectors supporting the economy of Indonesia is the mining industry. In East Kalimantan, coal mining activity has been done widely. Coal-mining open-pit activities play a significant role in the economic growth and the advancement of technology for Indonesia. Therefore, it is necessary to study every critical aspect including the hydrological and hydrogeological studies but especially aquifers, so that mining activities can be well managed and the impact on the environment can be overcome. The study of the aquifer from the study area was based on the resistivity value of the materials obtained through one of the geophysical methods that are the geoelectrical resistivity method, by using Wenner-Schlumberger configuration. In this study, geoelectrical resistivity method was performed in order to find out the condition of the subsurface by injecting two electrodes into the soil using direct current (DC) with certain distance so that potential difference can be known and resistivity information of subsurface layers can be obtained. The obtained resistivity value of the material was then interpreted so that the type of aquifer in the study area can be known. The interpretive results of the resistivity values of the materials in the study area showed that the distribution of aquifers based on measurement of a geoelectrical line of line number one, two and three, ware semi-confined aquifers. Meanwhile, the distribution of aquifers of line number four was confined aquifers. Based on the results of hydrological studies, the area of study has an annual rainfall of 3,053.704 mm/year with a watershed area of 16.586 km2. The evapotranspiration value of the study area is 1,784.21 mm/year, the surface run-off is 913.51 mm/year, and groundwater recharge is 355.98 mm/year.
Azhar, and Handayani, G., 2004. Application of Schumberger configuration geoelectric method for determination of coal type resistance. Jurnal Natur Indonesia 6 (2): 122-126 (in Indonesian).
Brooks, K.N. 2013. Hydrology and The Management of Watershed., 4th edition. Malaysia: Willy-Blackwell.
Cibaj, I., Lambert, B., Zaugg, P., Ashari, U., Dal, J.-A. and Imbert, P. 2014. Stratigraphic Stacking, Patterns of the Mahakam Area, Lower Kutai Basin, East Kalimantan, Indonesia
Devy, S.D. 2018. Hydrogeology of Karang Mumus Watershed in Samarinda, East Kalimantan Province, Indonesia. Forum Geografi 32: 12-23 (in Indonesian), http:// journals. ums.ac.id/ index.php/fg/article/view/5229/3868
Glass, G.V. 2008. Interrupted Time Series Quasi-experiments. Washington D.C.: American Education Research Association.
Irawan, D.E. and Puradimaja, D.J. 2015. General Hydrogeology. ISBN: 9786022582946, Ombak Press, Yogyakara (in Indonesian).
Kodoatie, R.J. and Sjarief, R., 2010, Water Management System: Adi Offset, Yogyakarta, p, 247–269 (in Indonesian).
Mohammad, F., Mardiana, U., Yuniardi, Y., Firmansyah, Y. and Alfadli, M.K. 2016. Ground water potential based on rock resistivity value in Cangkorah Village, Kecamata Batujajar, West Bandung Regency. Bulletin of Scientific Contribution 14(2): 141-152 (in Indonesian).
Ouyang, Y., Zhang, J-E. and Cui, L. 2014. Estimating impacts of land use on groundwater quality using trilinear analysis. Environmental Monitoring Assessment 186(9):5353-5362. DOI: 10.1007/s10661-014-3784-8.
Shadish, W.R., Cook T.D. and Campbell, D.T., 2002. Quasi-Experimental Design for Generalized Causal Inference. Houghton Mifflin Company, Boston. pp. 79-805. ISBN-10: 0395615569
Supriatna, Sukardi and Rustandi. 1995. Geological Map of the Samarinda Quadrangle, scale 1: 250.000. PuslitbangGeologi Bandung.
Suryadi, Y., Rustan Efendi, R. And Sandra, S. 2015. Identification of the subsurface layer structure and the temperature distribution of geothermal areas in Mantikole village. Gravitasi 14(1): 28-35 (in Indonesian).
Telford, W.M., Gerald, L.P. and Sheriff, R.E. 1990. Applied Geophysics. Second Edition. Cambridge University Press.
Triatmodjo, B. 2008. Applied Hydrology. Yogyakarta: Beta Offset (in Indonesian).
Verstappen, H.Th. 1985. Geomorphological Surveys for Environmental Development, Amsterdam: Elsevier Science Publishing Company Inc., USA, 325 p.
Copyright (c) 2018 Journal of Degraded and Mining Lands Management
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.