Abstract
<p><em>The purpose of this study are knowing the shallow groundwater flow patterns and characteristics in the Sangiran Dome. This research uses descriptive qualitative method, carried out with survey methods that are analyzed with spatial approach. Unit analysis of this studied is the landform unit the result of a overlay between the Geological’s Map, Genesis’s Process, and Slope’s Map, the result is 15 landform units. Data analysis techniques is to determine the pattern of shallow groundwater flow using the three point problem method. Data analysis is to determine the characteristics of groundwater by using the parameters of power oh Hydrogen (pH), temperature, and Electrical Conductivity (DHL). The results of this study are the shallow groundwater flow patterns in the Sangiran Dome are concentrated in the Kalibeng Formation, the diffuse flow patterns are in the Pucangan Formation and irregular flow patterns are found in Kabuh Formation and Noropuro. The characteristics of shallow groundwater in the Sangiran Dome, based on pH. Neutral classification are found in the Notopuro Formation, the lower Pucangan Formation; base pH classification found in Kabuh Formation, upper Pucangan Formation, and Kalibeng Formation; acidic pH classification is found in the Notopuro Formation. The low DHL classification is found in Notopuro Formation, Kabuh Formation, and Pucangan Formation while the moderate DHL classification is in the Kalibeng Formation.</em></p>
Highlights
The purpose of this study are knowing the shallow groundwater flow patterns and characteristics in the Sangiran Dome
Water is said to be clean if it meets the requirements in accordance with the intended use of clean water for drinking water needs, it must meet the physical, chemical, microbiological, and other requirements
It is estimated that 70% of the population's clean water needs and 90% of industrial water needs come from groundwater
Summary
Determination of shallow groundwater flow patterns is done by calculating shallow groundwater level. This pattern is found in the landform unit with the Kabuh Formation with a slope of 3% -. Kabuh Formation has a groundwater flow direction which flows in the direction of the slope of the rock bed from North to South, but there is a direction from West to East. In Notopuro Formation, the direction of shallow groundwater flow from South to North is in the same direction as the slope of the rock bed. The pH of shallow groundwater in the Sangiran Dome are divided into 3 classifications, namely: 1) Neutral Wells that have groundwater with a neutral pH of 35 points are scattered in the Notopuro Formation and the Pucangan Formation. The deposition process that contains organic components can cause pH values to decrease
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