Qualitative Analysis of Groundwater for Zone1 of Visakhapatnam using RS and GIS


Authors : R. Rohit Babu, C. H. Ramesh Naidu

Volume/Issue : Volume 4 - 2019, Issue 9 - September

Google Scholar : https://goo.gl/DF9R4u

Scribd : https://bit.ly/2Mdwa9r

Groundwater is one of the important water sources accounting over 80% of public water supplies in rural and urban areas. Groundwater is cheaper and less vulnerable to pollution than surface water. Improper disposal of wastes on land results in ground water contamination. Household chemicals, garbage landfills, industrial wastes, excessive usage of fertilizers and pesticides, leaking of underground oil storage tanks and pipelines, sewage sludge and septic systems are the major sources that causes contamination. In this connection, Remote Sensing and Geographic Information System(GIS) has become one of the leading tools in the field of hydrogeological science, which helps to assess, monitor and conserve the groundwater resources. The present study aimed at the generation of groundwater potential map through ground water quality assessment, of zone1 of Visakhapatnam, Andhra Pradesh, India. The study deals with the ground water quality, sources of ground water contamination and its variation. In this study the database is created which consists of satellite images and different maps using Survey of India Topographic sheets no. 65o5 and 65o6 on 1: 50,000 scale, with the help of ERDAS, QGIS2.18.14 and ARCGIS. Water quality index is calculated using weighted arithmetic sum method which renders the ground water pollution in the study area.

Keywords : Ground Water, Remote Sensing & GIS, Water Quality Index.

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