Bonfring International Journal of Industrial Engineering and Management Science

Impact Factor: 0.541 | International Scientific Indexing(ISI) calculate based on International Citation Report(ICR)


Preliminary Investigation of Groundwater Quality along the Coastal Aquifers of Southern Tamil Nadu Using GIS Techniques

S. Selvakumar, N. Chandrasekar and N.S. Magesh


Abstract:

The regions subjected to coastal environment generally face the impact of sea water intrusion, as most of the population is clustered towards coastal region. The present study helps to understand the impact of sea water intrusion in the southern coast of Tamil Nadu, from Kanyakumari to Vembar. For this study water samples have been collected from 80 dug well along the coastal tract. These samples are analysed for physico-chemical variation. Parameters such as pH and EC were measured in the field during sample collection using hand held multi parameter water quality kit. Other parameters such as TDS, HCO3, Total hardness, calcium, chloride, magnesium, sodium, potassium, and salinity were analyzed in the laboratory using standard methods (APHA, 1995). The measured values were plotted in GIS platform for the identification of saline zones in the study area. It is observed that the percentage of chloride and salinity are high, and the water quality map prepared using CCME WQI technique reveals that the water quality ranges from fair to poor. Finally it is concluded that most of the water samples are deteriorated due to beach placer mining activities in the study area.

Keywords: Coastal Aquifer, Geochemical Analysis, GIS, Groundwater Quality, Sea Water Intrusion

Volume: 2 | Issue: Special Issue on Geospatial Technology Development in Natural Resource and Disaster Management

Pages: 46-52

Issue Date: July , 2012

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