0f03bd01

7/24/2019 0F03Bd01

http://slidepdf.com/reader/full/0f03bd01 1/12

Hydrogeological Investigation of

Spring Zone at Northern Bandung Area

Principal Investigator: Dasapta Erwin Irawan

Research Assistant:

Krisponda,

M. Fajar Sodiq

Tsania OzzaNaufal Rospriandana

R. Cut Novianti Rachmi

Technician:

Kuswondo

Sagiman

Isma W.

Applied Geology Research Division,

Faculty of Earth Sciences and Technology,

Institut Teknologi Bandung1

Friday, November 23, 12

7/24/2019 0F03Bd01


Background

• Complex geology, surface geological mapping is not sufficient to predict the

layering of volcanic aquifer system.

• Therefore we need supporting data and analysis to estimate the behavior of

groundwater.

Hydrogeology of Manglayang Spring, Northern Bandung Area 2


7/24/2019 0F03Bd01


Location (Oraytapa Area, flank of Mount Manglayang)

Google Earth

0

2 km

Cimenyan

CikadutCigadung

Bandung

Cikidang

3Hydrogeology of Manglayang Spring, Northern Bandung Area


7/24/2019 0F03Bd01


Materials and methods

• Groundwater spring measurements

• Time series, from June to October (currently June to September in the

analsis)

• Temperature, electro-conductivity, total dissolved solids, pH

• Major elements (Ca, Na, Mg, K, Cl, SO4, HCO3 )



7/24/2019 0F03Bd01


Materials and methods

Geological

analysis Measurements

T, EC, TDS,

pH

Hydrogeologic

analysis

Groundwater

system

differentiation

4 groundwater springs

20 measurements from June to

October 5Hydrogeology of Manglayang Spring, Northern Bandung Area


7/24/2019 0F03Bd01


Regional Geology

Cibeureum Formation

• Aquifer produktif

•Volcanic fan of

Mt.Tangkubanparahu

•Breccias and Tuff

•Moderate

consolidated

•Intercalated by lava

•Late Pleistocene



7/24/2019 0F03Bd01


• Temperature

• Start of dry periode: erratic pattern

• End of dry periode: more stable, decreasing pattern following

surface temperature

• Indicates strong contact with surface, shallow groundwater

Results and discussion

Start of dry periode

End of dry periode



7/24/2019 0F03Bd01


• pH• Start of dry periode: erratic pattern, possibly due to residual

percolation processes

• End of dry periode: more stable, increasing pattern

• Indicates strong connection with surface, shallow groundwater



End of dry periode


End of dry periode



7/24/2019 0F03Bd01


Hydrogeology of Manglayang Spring, Northern Bandung Area


Start of dry periode End of dry periode

Start of dry periode End of dry periode

9


7/24/2019 0F03Bd01


• EC and TDS

• 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




7/24/2019 0F03Bd01


References

• Brahmantyo, B., 2004, Mencari Delineasi Geomorfologi Cekungan Bandung.

Departemen Pekerjaan Umum: Jakarta.

• Brahmantyo, B. dkk, 2005, Geologi Cekungan Bandung, Self publishing.

• Hutasoit L.M, 2009, Kondisi Permukaan Air Tanah Dengan Dan Tanpa

Peresapan Buatan Di Daerah Bandung: Hasil Simulasi Numerik. Jurnal Geologi

Indonesia: Bandung.



7/24/2019 0F03Bd01


Thank you

Contact information

Dasapta Erwin Irawan

Derwinirawan.wordpress.com

@d_erwin_irawan

Applied Geology Research Division,

Faculty of Earth Sciences and Technology,

Institut Teknologi Bandung 12

Acknowledgements

•ITB Research Funding

• ITB Foundation for Research and

Community Development

• Ir. Theo L. Matasak, MT

•Undergraduate students (class of 2010)


0f03bd01

Documents