Hydro-geochemical Assessment of Seawater Intrusion in Freshwater Shallow Aquifer in Southeastern Coastal of Cuddalore District, Tamilnadu, India
K. Karthikeyan1, N. Nagarajan2, S. Sivaprakasam3, K. Shakila4
1Dr. K. Karthikeyan*, Associate Professor, Department of Civil Engineering, Annamalai University, Chidambaram, Tamilnadu, India.
2Dr. N. Nagarajan, Associate Professor, Department of Civil Engineering, Annamalai University, Chidambaram, Tamilnadu, India.
3Dr. S. Sivaprakasam, Associate Professor, Department of Civil Engineering, Annamalai University, Chidambaram, Tamilnadu, India.
4K. Shakila, Post Graduate Student, Department of Civil Engineering, Annamalai University, Chidambaram, Tamilnadu, India.
Manuscript received on July 02, 2020. | Revised Manuscript received on July 10, 2020. | Manuscript published on August 30, 2020. | PP: 56-63| Volume-9 Issue-6, August 2020. | Retrieval Number: F1216089620/2020©BEIESP | DOI: 10.35940/ijeat.F1216.089620
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: As the coastal line of Tamilnadu is long, it may have been affected due to sea water intrusion by natural (sea level rise) and anthropogenic. Therefore, this study deals with the Hydro chemical assessment of seawater interruption in freshwater aquifer in Parangipettai region. For this assessment, the groundwater samples have been collected in various locations of Parangipettai region for both pre and post-monsoon period. The collected samples were tested by laboratory method for the identification of major cat ions and anions, namely TDS, EC, chloride, magnesium, Bicarbonate, calcium, sodium, potassium, and sulphate. The spatial maps for all the parameters were carried out using the ArcGIS 10.2 version for the purpose of better understanding the quality of groundwater. The results obtained through laboratory method are used to create Salinity and sodium risk of irrigation water in US salinity diagram, Gibbs diagram, permeability index and reconstructed diamond field of piper diagram using the watclast software. From the spatial maps, watclast diagrams and the standards recommended by WHO, BIS, and ISI, the SWI are discussed in detail to recommend the remedial measures to recover and restore the feature of groundwater in the Parangipettai region.
Keywords: Groundwater quality, Hydrochemical facies, Sea water Intrusion