Open AccessGeoelectrical survey and groundwater chemical analysis in Sumowono Groundwater Basin
Author(s) -
Thomas Triadi Putranto,
Novie Susanto,
Dina Rahayuning Pangestuti
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1943/1/012003
Subject(s) - groundwater , lithology , geology , structural basin , total dissolved solids , hydrology (agriculture) , geochemistry , breccia , mineralogy , environmental science , geomorphology , environmental engineering , geotechnical engineering
Sumowono groundwater basin is an inter-regency groundwater basin located in Central Java Province. The administrative areas are Semarang Regency, Temanggung Regency, and Kendal Regency. Hilly regions dominate the study area. This study aims to identify the subsurface lithology and analysis of the water type of groundwater samples. The methods were geoelectrical survey using Schlumberger array and physical and chemical of groundwater samples analyses from dug wells and springs. The results of the geoelectrical survey conduct five types of lithology with the resistivity value from 0 to more than 190 Ωm. They are claystone, tuff, tuffaceous sandstone, sandstone, and breccia. The chemical properties of groundwater samples indicate that the pH has a range from 6.4 to 7.27 with electrical conductivity (EC) from 71.6 to 511 µS/cm. Moreover, the Total Dissolved Solids (TDS) start from 45.8 to 327 mg/L. The water types are Mg 2+ -Ca 2+ -HCO 3 − Cl - , Ca 2+ -Mg 2+ -HCO 3 - -Cl - , Ca 2+ -Mg 2+ -HCO 3 - , Ca 2+ -HCO 3 - -Cl - , Ca 2+ -Mg 2+ -HCO 3 - -SO 4 2 -, and Ca 2+ -HCO 3 - -SO 4 2 -.