Ground Water Vulnerability Assessment of Coastal Area of Porbandar, Gujarat, India

Groundwater is indispensable to humankind. With increasing overuse of the groundwater resources, it has become necessary to study in detail vulnerability of ground water considering rapid industrialization and sea water intrusion. Vulnerability assessment of the ground water resources is conducted to highlight the areas which are susceptible to contamination. In the present study, attempt has been made to evaluate the groundwater vulnerability method in the coastal area of Porbandar using GALDIT and GIS. The parameters of GALDIT index are: Ground water Occurrence (aquifer type), Aquifer hydraulic conductivity, High ground water Level above the sea level, Distance from the shore, Impact of existing status of sea water intrusion in the area, and Thickness of the aquifer. Ground water vulnerability map generated in GIS environment can be used for the proper management and sustainable use of the coastal aquifer.