Chemical Type Variation of Groundwater in Borobudur and Surroundings Area, Magelang District

Abstract

Hydrogeological surveys have been carried out in the Borobudur area and its surroundings, the northern part of the West Progo Hills to the Magelang intermountain plains. The purpose of this study is to determine the variations in groundwater’s chemical types in the study area and to interpret the hydrochemical processes. Primary data was taken in the field, including groundwater data and rock petrology. Physical / chemical data of groundwater were obtained from laboratory test results. Data analysis includes hydrochemical analysis using the Stiff, Piper, and Durov diagrams. The result shows that groundwater in the study area has a wide variety of chemical types, namely Ca, Mg - bicarbonate; Ca, Mg, alkaline – bicarbonate; Alkaline, Ca – chloride, and Alkaline - chloride. Groundwater in the study area is fresh (type Va) to brackish (type Vc), with low -moderate TDS content (119 - 6,810 ppm), and soft calcium carbonate hardness (6.0 - 16.6 ppm). Hydrochemical processes occur in groundwater are simple dissolution and cation exchange caused by clay materials originating from Quaternary deposits or weathering of Old Andesite Formation volcanic breccia. In addition, the presence of brackish water in Karangrejo and Candirejo may be triggered by mixing with fossil water.

Hydrogeochemical analysis of groundwater in residential areas around the Terjun landfill in Medan city, Indonesia

“…This study aims to determine the quality of groundwater in the plunge landfill area and its hydrogeochemistry. Good groundwater quality will have a certain type of groundwater chemistry, with a certain main element content, in accordance with the limits recommended by the government [15]. The methods proposed in this study are Trilinear Piper Diagram Analysis (1944) [16], Stiff Quadrangle Diagram Analysis (1951) [17] and Durov Diagram Analysis (1948) [18].…”

Groundwater Contributing to Doline Hydrochemistry in Panggang and Wonosari-Baron Hydrogeological Subsystems, Indonesia

“…Hydrochemical studies of the Gunungsewu karst area have been developed by several experts [1][2][3][4]. The research has been done in the Panggang and Wonosari-Baron subsystems of the Gunungsewu karst hydrogeological system.…”

Groundwater quality assessment for drinking and clean water in Bagelen and its surrounding area

“…In other locations of the Kulon Progo Hills and its surroundings, groundwater quality has also been tested to determine the pollution (Listyani & Peni, 2020b, 2020a. Putranto & Aryanto (2018) mapped the groundwater level in Purworejo, whereas Soewaeli et al (2012) studied the groundwater quality in the southern part of Purworejo Regency.…”