JOURNAL OF CRITICAL REVIEWS ISSN- 2394-5125 VOL 7, ISSUE 04, 2020 Spatial Assessment of Ground Water Quality for Neelambur using GIS and AHP Techniques V.Navin Ganesh11, D.Pricilla2, R.Rajkumar3 and K.Vishnuvardhan4 1Assistant Professor (Senior Grade), Department of Civil Engineering, PSG Institute of Technology and Applied Research, Coimbatore, Tamil Nadu, India. 2Assistant Professor, Department of Civil Engineering, PSG Institute of Technology and Applied Research, Coimbatore, Tamil Nadu, India. 3Assistant Professor (Senior Grade), Department of Civil Engineering, PSG Institute of Technology and Applied Research, Coimbatore, Tamil Nadu, India. 4Assistant Professor, Department of Civil Engineering, Kongu Engineering College, Perundurai, Erode, Tamil Nadu, India.
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[email protected] Received: 14 Feb 2020 Revised and Accepted: 25 March 2020 ABSTRACT: Ground water is a major source of fresh water supply. The identification of good quality ground water sources is required for tapping those sources for distribution to public. The research work presented in this paper focused on the preparation of a spatial distribution map for quality of ground water in Neelambur, based on physio-chemical quality. 24 points within the study area were identified for ground water sample collection. Laboratory test was performed to identify the values of 9 water quality parameters namely Potential Hydrogen 3- 2- (pH), Iron (Fe), Nitrate (NO ), Sulphate (SO4 ), Total Dissolved Solids (TDS), Sodium (Na), Potassium (K), 3- Total Hardness (TH) as CaCO3 and Phosphate (PO4 ). The laboratory test results were used in the Geographic Information System (GIS) and the individual thematic maps for the water quality parameters were prepared using the Inverse Distance Weighted (IDW) interpolation method.