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 Irawanerwin@gc.itb.ac.id; d.erwin.irawan@gmail.comDerwinirawan.wordpress.com; erwinirawansblog.blogspot.com

Results: 3D Reconstruction of Volcanic Layers

This research was funded by:Institut Teknologi Bandung andBoard 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