Evaluation of Drastic and Geograpidc Information System as a Tool in Determining the Groundwater Quality Vulnerability of Kuala Langat Aquifer
This thesis describes the results of a ground water pollution potential modeling, which examined the entire Kuala Langat aquifer using GIS. The pollution potential model implemented within GIS is known as DRASTIC, a model, which was developed by the u.S. Environmental Protection Agency in 1985. I...
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| Format: | Thesis |
| Language: | English English |
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2002
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| Online Access: | http://psasir.upm.edu.my/id/eprint/10596/1/FK_2002_15.pdf |
| _version_ | 1811137241969328128 |
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| author | Hii, Ching Poon |
| author_facet | Hii, Ching Poon |
| author_sort | Hii, Ching Poon |
| collection | UPM |
| description | This thesis describes the results of a ground water pollution potential modeling, which
examined the entire Kuala Langat aquifer using GIS. The pollution potential model
implemented within GIS is known as DRASTIC, a model, which was developed by the
u.S. Environmental Protection Agency in 1985. In compiling a groundwater
vulnerability map of Kuala Langat, it was decided to use the widely known DRASTIC
methodology that includes Depth to groundwater, Recharge due to rainfall, Aquifer
media, Soil media, Topography, Impact of the vadose zone, and Conductivity
(hydraulic).
Although not designed for a GIS, this model represents a classic spatial analysis
approach for which GIS have become known. This thesis outlines the techniques used
in compiling the data sets for those factors that influence the susceptibility of
groundwater contamination over Kuala Langat and the techniques involved In manipulating and displaying these data in a GIS. The different techniques employed in
the gathering and calculations of the different information sets required by the
DRASTIC model to describe the groundwater vulnerability are presented in detail. The
final output, which is in the form of a color paper map, will be useful in presenting the
concept of groundwater vulnerability and groundwater protection to the layman.
Results show that DPPI ranges from 80 to 165 giving 90% of the entire area as
moderate vulnerable. However the south and east portion of Kuala Langat pose much
more pollution potential than other area. Pesticide DPPI ranges from 1 14 to 166 with
higher numbers representing higher pollution potential, indicating that moderate
pesticide pollution potential occurs through out the entire Kuala Langat aquifer. The
Pesticide DRASTIC Pollution Potential Index of Kuala Langat is higher than
DRASTIC Pollution Potential Index (DPPI) of Kuala Langat. From these findings, it
can be concluded that the potential source of pollution in the area derived from
agricultural activities. |
| first_indexed | 2024-03-06T07:21:38Z |
| format | Thesis |
| id | upm.eprints-10596 |
| institution | Universiti Putra Malaysia |
| language | English English |
| last_indexed | 2024-09-25T03:31:11Z |
| publishDate | 2002 |
| record_format | dspace |
| spelling | upm.eprints-105962024-04-25T01:32:00Z http://psasir.upm.edu.my/id/eprint/10596/ Evaluation of Drastic and Geograpidc Information System as a Tool in Determining the Groundwater Quality Vulnerability of Kuala Langat Aquifer Hii, Ching Poon This thesis describes the results of a ground water pollution potential modeling, which examined the entire Kuala Langat aquifer using GIS. The pollution potential model implemented within GIS is known as DRASTIC, a model, which was developed by the u.S. Environmental Protection Agency in 1985. In compiling a groundwater vulnerability map of Kuala Langat, it was decided to use the widely known DRASTIC methodology that includes Depth to groundwater, Recharge due to rainfall, Aquifer media, Soil media, Topography, Impact of the vadose zone, and Conductivity (hydraulic). Although not designed for a GIS, this model represents a classic spatial analysis approach for which GIS have become known. This thesis outlines the techniques used in compiling the data sets for those factors that influence the susceptibility of groundwater contamination over Kuala Langat and the techniques involved In manipulating and displaying these data in a GIS. The different techniques employed in the gathering and calculations of the different information sets required by the DRASTIC model to describe the groundwater vulnerability are presented in detail. The final output, which is in the form of a color paper map, will be useful in presenting the concept of groundwater vulnerability and groundwater protection to the layman. Results show that DPPI ranges from 80 to 165 giving 90% of the entire area as moderate vulnerable. However the south and east portion of Kuala Langat pose much more pollution potential than other area. Pesticide DPPI ranges from 1 14 to 166 with higher numbers representing higher pollution potential, indicating that moderate pesticide pollution potential occurs through out the entire Kuala Langat aquifer. The Pesticide DRASTIC Pollution Potential Index of Kuala Langat is higher than DRASTIC Pollution Potential Index (DPPI) of Kuala Langat. From these findings, it can be concluded that the potential source of pollution in the area derived from agricultural activities. 2002-04 Thesis NonPeerReviewed text en http://psasir.upm.edu.my/id/eprint/10596/1/FK_2002_15.pdf Hii, Ching Poon (2002) Evaluation of Drastic and Geograpidc Information System as a Tool in Determining the Groundwater Quality Vulnerability of Kuala Langat Aquifer. Masters thesis, Universiti Putra Malaysia. Water - Pollution Potential Groundwater English |
| spellingShingle | Water - Pollution Potential Groundwater Hii, Ching Poon Evaluation of Drastic and Geograpidc Information System as a Tool in Determining the Groundwater Quality Vulnerability of Kuala Langat Aquifer |
| title | Evaluation of Drastic and Geograpidc Information System as a Tool in Determining the Groundwater Quality Vulnerability of Kuala Langat Aquifer |
| title_full | Evaluation of Drastic and Geograpidc Information System as a Tool in Determining the Groundwater Quality Vulnerability of Kuala Langat Aquifer |
| title_fullStr | Evaluation of Drastic and Geograpidc Information System as a Tool in Determining the Groundwater Quality Vulnerability of Kuala Langat Aquifer |
| title_full_unstemmed | Evaluation of Drastic and Geograpidc Information System as a Tool in Determining the Groundwater Quality Vulnerability of Kuala Langat Aquifer |
| title_short | Evaluation of Drastic and Geograpidc Information System as a Tool in Determining the Groundwater Quality Vulnerability of Kuala Langat Aquifer |
| title_sort | evaluation of drastic and geograpidc information system as a tool in determining the groundwater quality vulnerability of kuala langat aquifer |
| topic | Water - Pollution Potential Groundwater |
| url | http://psasir.upm.edu.my/id/eprint/10596/1/FK_2002_15.pdf |
| work_keys_str_mv | AT hiichingpoon evaluationofdrasticandgeograpidcinformationsystemasatoolindeterminingthegroundwaterqualityvulnerabilityofkualalangataquifer |