Karakteristik Akuifer Menggunakan Metode Geolistrik Resistivity Di Kecamatan Kota Tengah Kota Gorontalo

Abstract

Kota Tengah Subdistrict has the highest population density in Gorontalo City, with a population density of 6,755 people/km2. This high population density requires a large amount of water to meet the needs of the population, where one form of fulfillment is taken from groundwater. For this reason, it is necessary and important to know the characteristics of aquifers. This study aims to determine the characteristics of groundwater aquifers in the Kota Tengah Subdistrict. The method used is the resistivity geoelectric method to obtain aquifer characteristics in the form of material type (lithology), depth, and thickness of the aquifer. Based on the geoelectrical analysis in TS 01 there are 4 layers, namely topsoil, clay sand, sand, and clay; TS 02 contains topsoil, sand, and clay layers; TS 03 contains topsoil, sand, and clay. The study found that the lithology of the near-surface layer in the Kota Tengah subdistrict can be classified into aquifers and aquicludes. The aquifer layer is formed by sand-sized sedimentary deposits that have high permeability while the aquiclude is clay-sized which is impermeable. The aquifer layer was found starting from a depth of 0.57 m. The average thickness of the aquifer layer was 13.8 m which is interpreted as an unconfined aquifer. This study also found other deeper aquifer layers as confined aquifers that can not be further interpreted due to the limitations of the method used.

Penentuan Tipe Akuifer Daerah Bulontala Kabupaten Bone Bolango Menggunakan Metode Geolistrik

“…(Permana, 2019). Berdasarkan hasil penelitian yang dilakukan oleh (Wumu et al, 2022) bahwa karakteristik akuifer untuk kecamatan Kota Tengah memiliki dua je.nis.…”

Potensi Airtanah Menggunakan Metode Geolistrik Resistivitas Di Desa Molingkapoto, Kecamatan Kwandang, Kabupaten Gorontalo Utara, Provinsi Gorontalo

“…Pada survey permukaan kondisi geologi suatu daerah sangat berkaitan dengan keterdapatan, penyebaran, dan pergerakan airtanah karena terdapat dalam litologi di bawah permukaan tanah (Permana, 2019). Dengan demikian bahwa karakteristik akuifer terdiri dari dua jenis yaitu akuifer bebas dan akuifer tertekan yang lapisannya terdiri dari top soil, pasir dan lempung (Wumu et al,2022).…”

Groundwater Potential in Unconfined Aquifers Using a Landform Approach in Gorontalo City

“…The results of Jusuf's research (2015) only estimate the thickness of the aquifer from the Gorontalo City groundwater basin. Wumu et al (2022) also researched aquifer characteristics in Kota Tengah District, Gorontalo City, using the geoelectric method. Wumu et al (2022) explained the characteristics of the aquifer based on the type of rock at the geoelectric location and the thickness of the aquifer using an administrative unit of analysis (District).…”

“…Wumu et al (2022) also researched aquifer characteristics in Kota Tengah District, Gorontalo City, using the geoelectric method. Wumu et al (2022) explained the characteristics of the aquifer based on the type of rock at the geoelectric location and the thickness of the aquifer using an administrative unit of analysis (District). In general, in addition to estimating the thickness of the aquifer, this study also calculated the potential estimation of groundwater stored in unconfined aquifers in Gorontalo City based on the landform unit.…”