CD Skripsi
Identifikasi Intrusi Air Laut Pada Zona Akuifer Menggunakan Metode Geolistri Di Kelurahan Tanjung Kapal Kabupaten Bengkalis
ABSTRACT
The identification of the effect of seawater intrusion on aquifers at groundwater depths using the geoelectric method of dipole-dipole configuration has been carried out in Tanjung Kapal Village, Rupat Bengkalis. In this study, the length of the track used is 100 meters. Data retrieval used are resistivity meter, resulting current data (I) and potential difference (V). Data processing uses Res2divn software which results in the form of image resistivity, 2D resistivity below the surface. On track 1 (distance 200 m from the beach) the resistivity value in the range from 0.726 Ωm–751 Ωm and track 2 (distance 460 m from the beach) the resistivity value ranging from 0.193 Ωm - 1715 Ωm. The interpretation results show that there is seawater intrusion on track 1 and track 2 in the Tanjung Kapal village proved from the resistivity value. The resistivity value of rock affected by intrusion on track 1 is 0.726 Ωm – 4.26 Ωm and on track 2 is 0.193 Ωm – 3.55 Ωm. The results of the 2 track show that the shallow aquifer layer of the track 1 has a resistivity value of 4.26 Ωm – 24.8 Ωm, while the track 2 has a resistivity value of 3.55 Ωm – 12.5 Ωm.The results of the quality of ground water that have been tested are classified as brackish. Well water is not suitable for human consumption. Corresponding to the test results of the two well water samples showed a pH value of 7.0 - 7.6 and a salinity of 0.22% - 0.27%.
Keywords: Seawater intrusion, dipole-dipole configuration, resistivity, aquifer
Tidak tersedia versi lain