Abstract

This research is a hydrogeological survey activity with the aim to determine the geological characteristics of groundwater in the Hargorejo area, Kokap Sub-district, West Progo. The study wants to know about the pattern of groundwater flow and water quality in the area. The northern part of the research area is included in the non-groundwater basin region of the West Progo Dome, while the southern part is included in Wates Groundwater Basin. Method of research is a field hydrogeological survey, to obtain geological and groundwater data. Groundwater flow pattern and quality analyses are based on groundwater data and pH, TDS and EC values. Groundwater can be obtained from springs or dug wells, with relatively shallow groundwater tables. The pattern of groundwater flow is generally to the south, with the H4 / H5 basin boundary type. Groundwater quality is quite good, with a pH value of 6.2 -7; TDS 191 - 558 ppm, and EC ranges from 279-783 µS / cm.

Highlights

  • This hydrogeological study was conducted in Hargorejo and its vicinity, West Progo District, Yogyakarta (Figure 1)

  • The hydrogeological description in the field is focused on measuring of groundwater level and its quality data such as pH, total dissolved solid (TDS) and electrical conductivity (EC)

  • The middle to north part is a part of the physiography of the West Progo Dome, where this area is a non groundwater area

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Summary

Introduction

This hydrogeological study was conducted in Hargorejo and its vicinity, West Progo District, Yogyakarta (Figure 1). The study area is astronomically located at the coordinates 070 50' 15" - 070 53' 00" S and 1100 5' 15 " - 1100 7' 45'' E This is included in Bagelen, Wates, Temon dan Brosot Sheets, according to topographic map of Bakosurtanal published in 2001. This area includes some hamlets in Hargorejo Village and surrounding area near the village. Most of the research areas occupy the West Progo Hills area. Hilly morphology may be offset due to this geological structure [5]. Such complex geological conditions greatly determine the potential of water resources, especially groundwater

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