What question did this study set out to answer?

To analyze the distribution and quality of groundwater at Merauke IIb Prison using geoelectrical methods.

February 2, 20260 citations

Groundwater Quality Analysis at Merauke IIb Prison, Merauke Regency, South Papua Province

CPCharles H H PaikiPublic Works YWYan Adhitya Wesda Wardhana AAAndre Putra ArifinPublic Works

Key Points

To analyze the distribution and quality of groundwater at Merauke IIb Prison using geoelectrical methods.
Conducted 1D geoelectrical measurements using the Werner-Schlumberger configuration.
Performed data acquisition on two measurement paths (GL-LPS1 and GL-LPS2).
Measured resistivity values to determine water quality and depth of aquifers.
Found brackish-salty water in two test wells and fresh water in one well.
Dominant resistivity values were <315 Ωm, indicating clay, sand, and gravel presence.
Aquifers were found at depths of 83.5-170 meters for path 1 and 90-110 meters for path 2.

Abstract

Groundwater resource that can be utilized by humans to meet their needs. A study on the potential distribution of groundwater was conducted at Merauke IIb Prison, Merauke Regency, South Papua Province using the 1D geoelectrical measurement method analysis of the Werner-Schlumberger configuration. The data acquisition was performed on two measurement paths. The length of the first path (GL-LPS1) was 300 m, with a spacing of 2.5 - 25 meters. The second path (GL-LPS2) is 180 m, with a spacing of 2.5 - 20 meters. The results showed that these two test wells contained brackish-salty water while one test well was fresh water. Based on the data analysis, the dominant resistivity value was <315 Ωm in both paths which was interpreted as clay, sand and gravel. Moreover, the distribution of aquifers on the first path was at a depth of 83.5-170 meters, while in path 2 the distribution of aquifers was at a depth of 90-110 meters. Thus, the analysis results indicated heterogeneity in the groundwater quality. Despite similar local lithologies, this indicates different water sources at each location. Therefore, water supply management must be considered in a prison environment.

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