Groundwater Quality Aspect Owing to Urbanization in Langat Basin (Kajang, Semenyih) Malaysia

Haque, Syeda Jesmin; Roslan, Norsyafina

doi:10.9734/ajee/2017/36049

Cited by 3 publications

(2 citation statements)

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“…Langat Basin is located south of Selangor and north of Negeri Sembilan within latitude 2°40′N to 3°20′N and longitude 101°10′E to 102°00′E [4][5][6] (Fig 1). It is the largest river basin in Selangor, about 200km long and covers an area of 2,423 km 2 [7]. Topographically, the Langat basin can be divided into three geographic regions, i.e.…”

Section: Description Of the Study Areamentioning

confidence: 99%

The Delineation of the Langat Basin Aquifer Based on Geological and Hydrogeological Characterization of Three Urban Areas of Malaysia

Haque¹,

Roslan

2023

JGEESI

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Aims: The aim of this study is to find out the hydrogeological settings and aquifer properties of Kajang, Bangi, and Semenyih urban areas to overcome the mismanagement of groundwater. Study Design: The scarcity of groundwater is one of the major concerns of urbanization in growing populated countries like Malaysia. Lack of knowledge of subsurface geology, hydrogeology and aquifer properties is the main reason for the groundwater mismanagement of the Langat Basin. Place and Duration of Study: The study targeted three growing urban areas Kajang, Bangi and Semenyih of Malaysia. Data were collected from the Mineral and Geosciences Department, Malaysia. Borehole logs, pumping tests and groundwater level monitoring data have been analysed and interpreted for this study. Methodology: Subsurface logs have been produced by the Strater Demo4 software; Water level analyses have been done by the groundwater level monitoring data, the contour map was plotted by using ArcGIS software with calculated groundwater head values and the Pumping test curve has been prepared by using Excel 2007. Results: Study areas are situated in Kenny Hill formation. Water is pumped from four types of formations they are; hard rock, weathered sedimentary, shallow sedimentary and a combination of alluvium and hard rock. Groundwater flow direction is controlled by the topography, from the hilly north-eastern side to the low elevated south-western side. The identified aquifer condition of the Kajang area is confined, boundary and consolidated fractured. Water is pumped from the confined fractured aquifer in Bangi town and from the leaky, consolidated fractured and unconfined aquifer in Semenyih town. Transmissivity and Specific capacity of all types of aquifers show a range of 2.35m2/day to 25.92m2/day and 2.64 m2/day to 41.28m2/day respectively. Conclusion: This study will help to establish robust policies for the sustainable development of groundwater.

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Section: Description Of the Study Areamentioning

confidence: 99%

The Delineation of the Langat Basin Aquifer Based on Geological and Hydrogeological Characterization of Three Urban Areas of Malaysia

Haque¹,

Roslan

2023

JGEESI

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“…However, the pumping can effect the quality stress further. In addition, groundwater quality study was carried out in Kajang for granitic and shale aquifer and in Semenyih for granitic aquifer [13]. The wells were drilled up to 160m in granite and 64m in shale.…”

Section: Literature Reviewmentioning

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Review on Rock Aquifers Researches Conducted in Malaysia

Rathinasamy¹,

Mohammad²,

Komoo

2018

MATEC Web Conf.

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The exploration of groundwater in Malaysia was not very welcomed due to few misconceptions such as it is very expensive to extract, could give negative impacts to the environment and not reliable. Yet, in recent times, rock aquifers such as limestone, sedimentary rocks, volcanic rocks, igneous rocks and metasedimetary rocks are being explored. This paper aims to review the researches that have been carried out on rock aquifers in Malaysia. In general, the topics studied were potential zonation, groundwater quality and quantity, occurrence and flow of groundwater as well as characterization of rock aquifers. The highest yielding aquifer was metasedimentary rock aquifers meanwhile the quality was good in general. Most of the aquifers were having neutral pH values and the total dissolved solids more than 100 mg/l. Moreover, granitic aquifers contained more hardness than the metasedimentary rocks. The iron content in the aquifers was higher than the limit set by World Health Organisation which is 0.3mg/l while salinity of aquifers were not tested in many aquifers. It can be vividly seen that many research were focused on quality. Hence, more researches on characterization of rock aquifers must be done for proper understanding on occurrence, flow and recharge.

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Spatial Analysis of Groundwater Hydrochemistry through Integrated Multivariate Analysis: A Case Study in the Urbanized Langat Basin, Malaysia

Zainol

Zainuddin

Looi

et al. 2021

IJERPH

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Rapid urbanization and industrial development in the Langat Basin has disturbed the groundwater quality. The populations’ reliance on groundwater sources may induce possible risks to human health such as cancer and endocrine dysfunction. This study aims to determine the groundwater quality of an urbanized basin through 24 studied hydrochemical parameters from 45 groundwater samples obtained from 15 different sampling stations by employing integrated multivariate analysis. The abundance of the major ions was in the following order: bicarbonate (HCO3−) > chloride (Cl−) > sodium (Na+) > sulphate (SO42−) > calcium (Ca2+) > potassium (K+) > magnesium (Mg2+). Heavy metal dominance was in the following order: Fe > Mn > Zn > As > Hg > Pb > Ni > Cu > Cd > Se > Sr. Classification of the groundwater facies indicated that the studied groundwater belongs to the Na-Cl with saline water type and Na-HCO3 with mix water type characteristics. The saline water type characteristics are derived from agricultural activities, while the mixed water types occur from water–rock interaction. Multivariate analysis performance suggests that industrial, agricultural, and weathering activities have contributed to groundwater contamination. The study will help in the understanding of the groundwater quality issue and serve as a reference for other basins with similar characteristics.

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Groundwater Quality Aspect Owing to Urbanization in Langat Basin (Kajang, Semenyih) Malaysia

Cited by 3 publications

References 0 publications

The Delineation of the Langat Basin Aquifer Based on Geological and Hydrogeological Characterization of Three Urban Areas of Malaysia

The Delineation of the Langat Basin Aquifer Based on Geological and Hydrogeological Characterization of Three Urban Areas of Malaysia

Review on Rock Aquifers Researches Conducted in Malaysia

Spatial Analysis of Groundwater Hydrochemistry through Integrated Multivariate Analysis: A Case Study in the Urbanized Langat Basin, Malaysia

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