Prediction of groundwater storage based ongeoelectric estimation in Grobogan District, Central Java

Ngudi Aji Jaka Yuwana, Nora Herdiana Pandjaitan, Roh Santoso Budi Waspodo

Abstract


One of the solutions for water shortage in Grobogan District is groundwater utilization. Excessive groundwater pumping will decrease groundwater level and trigger a landsubsidence. It is necessary to conduct hydrogeological study to determine the groundwater storage in this area. The purpose of this research were to determine the hydrogeological conditions, aquifer characteristics and potential of groundwater storage in Grobogan district. This research used geoelectrical method to identify rock characteristics. The results showed that the geological formation in Grobogan district consisted of Qa, Tmpk, Tmpl, Tps, Tmw and Qp. Grobogan district had 5 aquifers system, there are: poorly productive aquifers, moderately productive aquifers, locally productive aquifers, extensive productive aquifers and region without exploitable groundwater. The aquifer layer consisted of sand, marl sandy, silty sand and calcareous sand. The unconfined aquifer was located at 1,2 - 58 m from soil surface with average thickness of 13,54 m and the hydraulic conductivity of 3,54 m/day. The confined aquifer depth can be estimated between 29 - 174 m from soil surface with average thickness of 37,4 m and the hydraulic conductivity of 3,87 m/day.The predicted groundwater storage in Grobogan district of unconfined aquifer was 401,33 l/sec and confined aquifer was 1.804,95 l/sec.


Keywords


confined aquifer; geoelectrical method; Grobogan; groundwater; unconfined aquifer

References


Alile, M.O., Jegede, S.I., Ehigiator. 2008. Underground Water Exploration Using Electrical Resistivity Method in Edo State, Nigeria. Asian Journal of Earth Sciences. 1(1): 38-42.

Dawson, K.J. dan Istok, J.D. 1991. Aquifer Testing: Design and Analysis of Pumping and Slug Tests. Lewis Publishers, Michigan.

Fetter, C.W. 1994. Applied Hydrogeology 3rd ED. Merrill Publishing Company, Ohio

Jackson, P.D., Earl, S.J., Reece, G.J. 2001. 3D Resistivity Inversion Using 2D Measurement of the Electric Field. Geophysical Prospecting. 49(1): 26-39.

Klute, A. dan Dirksen, C. 1986. Hydraulic conductivity and diffusivity: Laboratory method. Methods of Soil Analysis Part 1. Physical and Mineralogical Methods 2nd edition. ASSA Inc, Madison Wisconsin.

Kodoatie, R.J. 2010. Pengantar Hidrogeologi. Penerbit Andi, Yogyakarta.

Kodoatie, R.J. dan Sjarief, R. 2008. Pengelolaan Sumber Daya Air Terpadu. Penerbit Andi, Yogyakarta.

Loke, M.H. dan Dahlin, T. 2002. A comparison of the Gauss-Newton and quasi-Newton methods in resistivity imaging inversion. Journal of Applied Geophysics. 49(1): 149-162.

Munawaroh, N.F., Rahayu, E.S., Ani, S.W. 2013. Analisis Daya Saing Jagung di Kabupaten Grobogan, Jawa Tengah. Jurnal Agroekoteknologi UNS. 11(2).

Pryambodo, D.G., Kusumah, G., Sudirman, N. 2014. Pendugaan Akuifer Airtanah di Pesisir Pulau Solor, Nusa Tenggara Timur. Jurnal Teknologi Perikanan dan Kelautan. 10(2): 147-155.

Putranto, T.T. dan Kusuma, K.I. 2009. Permasalahan Airtanah pada Daerah Urban. Jurnal Teknik. 30(1): 48-57

.

Rahayu, E.S. dan Irianto, H. 2013. Kajian Keragaan Pasar dan Daya Saing Komoditas Tembakau sebagai Dampak Perubahan Iklim di Kabupaten Grobogan. Jurnal SEPA. 9(2).

Rolia, E. 2011. Penggunaan Metode Geolistrik untuk Mendeteksi Keberadaan Airtanah. Jurnal Tapak. 1(1).

Srijono dan Nadia, N. 2013. Pengembangan Lingkungan Kars Gua Urang sebagai Lokasi Wisata. Jurnal Forum Geografi. 27(2): 99-110.

Telford, W.M., Geldart, L.P., Sheriff, R.E., dan Keys, D.A. 1976. Applied Geophysics. Cambridge University Press, New York.

Todd, D.K. 1995. Groundwater Hydrology. Second Edition. John Wiley & Sons, Danvers.

Todd, D.K. dan Mays, L.W. 2005. Groundwater Hydrology 3th ed. John Wiley & Sons, Danvers.

Zohdy, A.A., Eaton, G.P., Mabey, D.R. 1980. Application of Surface Geophysics to Groundwater Investigation. United States Department of The Interiora, Washington.




DOI: https://doi.org/10.32679/jsda.v13i1.139

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