Identified sub-surface composition remains crucial in development, such as finding out the potential below the surface, this research in Institut Teknologi Kalimantan Campus (ITK). This study aims to identify potential distribution values and determine the source of anomalies in the ITK Campus area. This study uses the Self-Potential method with a fixed-base technique-the data obtained in the form of potential difference (∆V) data and measurement point coordinates. The data corrections performed include daily base variation, daily correction, and reference correction. The data is processed using the surfer 11 software. The result is a variety of potential value which is interpreted by isopotential contour map and qualitative interpretation. We can select the source of anomaly indicators on the map of isopotential contour and slicing off cross-sections. Anomalous potential values from 45 mV to-55 mV indicated abnormal authority, mainly groundwater electrolyte potential, with positive anomaly values up to hundreds of mV negative. And, there was a potential for liquid flow with a positive and negative anomaly ≤ 100 mV.
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