Groundwater Quality Assessment of Ambuliyar Watershed using GIS

 
 
 
  • Abstract
  • Keywords
  • References
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  • Abstract


    Groundwater is significant in satisfying domestic and agricultural needs.Besides scarcity, the groundwater resource is degrading drastically around the world. The Ambuliyar watershed falling in parts of Tamil Nadu also faces similar problems. To decipher the quality degradation, pre-monsoon and post-monsoon data on various physical and chemical parameters was collected for 29 wells for the year 2014 from Public Works Department. Spatial maps were generated on the above geochemical parameters and categorized into five classes using GIS software. Weights were assigned for each parameter based on their relative importance in with each other parameters. Finally, quality index map was generated by integrating them, and subsequently their aerial extent in monsoons was worked out. During the post-monsoon period, 18% of the study area represents “excellent”, 46% “good”, 25% shows “moderate” and 11% shows “poor” quality. While during pre-monsoon period, 34% of the area exhibits “excellent”, 43% “ moderate”, and the remaining 23% of “poor”.  

     

     


  • Keywords


    Groundwater quality, Ambuliyar watershed, GIS, Pre-Monsoon, Post Monsoon.

  • References


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Article ID: 16166
 
DOI: 10.14419/ijet.v7i3.12.16166




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