Abstract:
Interpretation of underground water based on the geoelectrical imaging and
hydrogeochemical case study in Tarai Bangun market has been carried out. This research was
done due to potential market waste that can contaminate groundwater quality. The depth of
aquifer can be determined using the Schlumberger configuration geoelectric based on the two
tracks in which each track has a length of 100 m. The results for four layers with different
resistivity, underground water is found in the fourth layer. Underground water was collected
from residents well water in the research area. This underground water sample was tested for
some parameters such as pH, TDS, Pb, and Zn. Based on the obtained parameters of
underground water, it is found that the underground water in this research area cannot be
consumed because the pH obtained at a distance of 5 meters from the market is > 9.0 or
alkaline. The pH of this underground water is bigger than the pH mention in the Regulation of
the Minister of Health of the Republic of Indonesia Number 32 Year 2017. This underground
water needs to be further processed so that the underground water can be consumed by
residents in the research area.
