Introduction •The hydrostratigraphy under complex geological control of the volcanic aquifer in the Bandung Area has not been completely understood. Therefore we need supporting data and analysis to estimate the behavior of groundwater. • Objectives •The hydrostratigraphy of volcanic aquifer system in Manglayang Mountain, Northern Bandung Area. •The vertical and horizontal groundwater flow pattern in the volcanic aquifer system at Northern Bandung Area. Methodology •There are numerous regional-scaled researches that have been completed in the Bandung area. They need to be carefully identified and critically studied, as the groundwater flow setting has been changed through time with the increase of exploitation. This research will focus on previous researches with available raw data that can be re-analyzed and re-interpreted. The field survey stage will consist of surface geological observation on selected locations with spring and groundwater well measurement. •Physical and chemical properties measurements uses portable instrument: groundwater level meter, thermometer, EC and pH meter. The survey will also take at least 30 groundwater samples on selected locations and depth based on the variation of aquifer system. Conclusions •Volcanic layers have local variations due to the rough initial topography and the flowing and falling mechanisms. •Those variations controls the occurrences of groundwater spring in the area. •The temperature and conductivity measurements has proven to be effective to predict the flow system. •The hydrostratigraphical systems has local and regional groundwater flow system. •Start of dry periode: low (due to excess of rainfall from wet season) •End of dry periode: became higher (enrichment effect) •Estimated groundwater delay time: 2-3 months Research Contributions •It displays the importance in-direct methods, as the future of hydrogeological mapping in Indonesia. •It supports the authorities with updated state of groundwater in the area and shows the crucial point of detail mapping in one of the stages in water and land conservation program (scale 1:12,500 or more). Detail mapping portrays the local variations that could be deviated from general understanding.

1. Introduction
• The hydrostratigraphy under complex geological control of the volcanic aquifer in the Bandung Area
has not been completely understood. Therefore we need supporting data and analysis to estimate the
behavior of groundwater.
Objectives
• The hydrostratigraphy of volcanic aquifer system in Manglayang Mountain, Northern Bandung Area.
• The vertical and horizontal groundwater flow pattern in the volcanic aquifer system at Northern
Bandung Area.
The Effect of Low Permeability Environment to Groundwater Spring Behaviour at
Mount Manglayang Springs, Bandung Regency, West Java, Indonesia
(HS05-A001)
Applied Geology Research Group, Faculty of Earth Sciences and
Technology, Insitut Teknologi Bandung
Board of Development Planning
West Java Province
Location
Conclusions
• Volcanic layers have local variations due to the rough initial topography and the flowing and falling
mechanisms.
• Those variations controls the occurrences of groundwater spring in the area.
• The temperature and conductivity measurements has proven to be effective to predict the flow system.
• The hydrostratigraphical systems has local and regional groundwater flow system.
• Start of dry periode: low (due to excess of rainfall from wet season)
• End of dry periode: became higher (enrichment effect)
• Estimated groundwater delay time: 2-3 months
Methodology
• There are numerous regional-scaled researches that have been completed in the Bandung area. They
need to be carefully identified and critically studied, as the groundwater flow setting has been changed
through time with the increase of exploitation. This research will focus on previous researches with
available raw data that can be re-analyzed and re-interpreted. The field survey stage will consist of
surface geological observation on selected locations with spring and groundwater well measurement.
• Physical and chemical properties measurements uses portable instrument: groundwater level meter,
thermometer, EC and pH meter. The survey will also take at least 30 groundwater samples on selected
locations and depth based on the variation of aquifer system.
Dr. Dasapta Erwin Irawan
erwin@gc.itb.ac.id; d.erwin.irawan@gmail.com
Derwinirawan.wordpress.com; erwinirawansblog.blogspot.com
Results: 3D Reconstruction of
Volcanic Layers
This research was funded by:
Institut Teknologi Bandung and
Board of Regional Planning and Development, West Java Province
Results: Selected Examples of
Detailed Geological Maps
For more informations:
Research Contributions
• It displays the importance in-direct methods, as the future of hydrogeological
mapping in Indonesia.
• It supports the authorities with updated state of groundwater in the area and
shows the crucial point of detail mapping in one of the stages in water and land
conservation program (scale 1:12,500 or more). Detail mapping portrays the local
variations that could be deviated from general understanding.
Results: Physical-Chemical
Groundwater Properties
Authors:
Dasapta Erwin IRAWAN, Cut Novianti RACHMI, Ahmad DARUL, Krisponda
PRESENTED IN:
CONTRIBUTORS:
• Rachmat Arif
• Jaka S. Budiman
• A. Lukman
• Zidni I. Muntaha
• T. Cahyadi
• M.R. Ramadhan
• M. Fajar Sodiq
• Tyka Puspita