PRAYOGI, GINANJAR ANTON SURYA (2013) KAJIAN HIDROGEOLOGI DI DAERAH MUTIARA PT. SINGLURUS PRATAMA KECAMATAN SAMBOJA KABUPATEN KUTAIKARTANEGARA PROVINSI KALIMANTAN TIMUR. Masters thesis, UPN "VETERAN" YOGYAKARTA.
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Abstract
Kajian hidrogeologi yang dilakukan meliputi kondisi Hidrologi Daerah Mutiara, debit air limpasan, sifat hujan, uji akuifer, karakteristik akuifer, dan potensi airtanah. Data curah hujan diperoleh dari stasiun Meteorolgi dan Geofisika Bandara Temindung Samarinda selama 10 tahun terakhir dari tahun 2002-2011. Curah hujan tahunan berkisar antara (1308,30-2996,30) mm dan hari hujan (190-260) hari, daerah penelitian termasuk wilayah dengan curah hujan normal. Di daerah penelitian terdapat 3 daerah tangkapan hujan (DTH), yaitu DTH I, II dan III. Nilai debit air limpasan pada masing – masing DTH ialah DTH I sebesar 165lt/detik, DTH II sebesar 194lt/detik, dan DTH III sebesar 297lt/detik. Untuk mendapatkan parameter akuifer dilakukan pengujian akuifer dengan metode slug test pada 3 lubang bor. Berdasarkan hasil uji akuifer di lapangan dengan metode Slug Test diketahui nilai permeabilitas (k) akuifer berkisar antara (1,123 x 10-5 – 1,881 x 10-6) meter/detik. Dilihat dari jenis batuan penyusun akuifer (pasir halus), nilai permeabilitas (k) yang relatif kecil, maka potensi airtanah di daerah penyelidikan relatif rendah hingga sedang. Airtanah di daerah penelitian secara umum mengalir dari arah Barat ke Timur. Kualitas air permukaan tanah secara umum relatif baik. Terdapat satu conto air yang memiliki Residu Tersuspensi (TSS) berada di atas ambang batas, yaitu conto air tanah 1-2 (GT-MT-03) memiliki nilai TSS sebesar 4.030. Terdapat pula satu conto air yang kandungan unsur Fe melebihi ambang batas, yaitu conto air sungai nomor 2-3 = 602,8 mg/lt Hydrogeological study was conducted on the condition of Hydrology Regional Farmers Expectations, the discharge water run off, rain properties, aquifer testing, aquifer characteristics and groundwater potential. The rainfall data obtained from the station and Geophysics Meteorolgi Temindung Samarinda over the last 10 years from the year 2002-2011. Annual rainfall ranges between (1308,30 to 2996,30) mm and the rainy day (190-260) days, the study area includes areas with normal rainfall. On the study area there are 3 catchment (DTH), which DTH I, II and III. Runoff water discharge value on each - each DTH DTH I was at 85lt/second, amounting to 100lt/second DTH II, and III at 153lt/second DTH. To obtain aquifer parameters of an aquifer test conducted by the method of slug test on 3 drill holes. Based on the results of an aquifer test in the field with Slug Test method known value of permeability (k) aquifer ranged between (1.123 x 10-5 - 1.881 x 10-6)meter/sec. Judging from the type of constituent rock aquifers (fine sand), the value of permeability (k) is relatively small, the potential for groundwater in the area of investigation is relatively low to moderate. Groundwater in the research area generally flows from west to east direction. Ground water quality is relatively good in general. There is one water sample which had residue Suspended (TSS) is above the threshold, the groundwater samples 1-2 (GT-MT-03) has a value of 4.030 TSS. There is also a water sample Fe element content exceeds the threshold, the river water samples number 2-3 = 602,8 mg / lt
| Item Type: | Thesis (Masters) |
|---|---|
| Subjects: | T Technology > TN Mining engineering. Metallurgy |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Mathematics |
| Depositing User: | Bugel Suryanta |
| Date Deposited: | 23 May 2016 06:31 |
| Last Modified: | 23 May 2016 06:31 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/2125 |
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