International Journal of Advances in Engineering & Technology, Feb., 2016. ©IJAET ISSN: 22311963 129 Vol. 9, Issue 1, pp. 129-134 GIS BASED GROUNDWATER QUALITY MAPPING IN SOUTHERN PART OF AURANGABAD CITY, MAHARASHTRA, INDIA Sunil Shinde 1 , Kailash Patil 2 , Parag Sadgir 2 1 Research Scholar, 2 Associate Professor, Government College of Engineering, Aurangabad, M.S., India ABSTRACT River and groundwater is the major source of drinking and irrigation water supply in rural and urban area in the country. The annual groundwater withdrawal in the country is 231 BCM out of which 213 BCM is used for irrigation and 18 BCM for drinking and industrial use. Groundwater is the favorite alternative is facing threats due to anthropogenic activities in India, which has lead due to deterioration in groundwater quality. Nitrate is of anthropogenic origin. Beside loading the water with bacterial & nitrate contamination, infiltration of leachates from domestic sewage disposal system in stream and river could impact the groundwater quality as human waste are known to contain sodium, calcium, magnesium and chloride ions. The objective of the study is to analyze groundwater contamination due to anthropogenic activity using Geographical information system (GIS). The paper reports the impact of river water contamination on ground water contamination in six villages of the Aurangabad and Gangapur Taluka beside Waluj MIDC of the Southern part of the Aurangabad district, Maharashtra, India. Hence monitoring of groundwater water quality has become indispensable. GIS not only facilitates data capture and processing but also serve as powerful computational tool that facilitate multimap integrations. In this study groundwater quality analysis was carried out for Aurangabad and Gangapur Taluka in Aurangabad district, Water samples were collected from 40 dug-wells on either side of the Kham River which represents the entire Agricultural area of study are. The samples were systematically analyzed for physical and chemical parameters such as pH, EC, TDS, Cl, NO3 during pre-monsoon and post-monsoon period. Study area is an example of an area where the groundwater is contaminated as a result of infiltration of waste water in low laying areas adjacent to industrial area. The strategically analyzed results are presented in a GIS based water quality mapping. KEYWORDS: Ground water analysis, Water quality parameter, Electrical conductivity, Geographical information System (GIS), Kham River, Aurangabad (MS), India I. INTRODUCTION Water quality is the physical, chemical and biological characteristics of water in relationship to a set of standards. Water quality standards are created for different types of water bodies and water body locations as per desired uses. There are separate quality standards for irrigation, potable and industrial water. Water quality depends on the local geology and ecosystem as well as human uses such as sewage dispersion, industrial pollution. Environmental engineer and researchers have paid much attention to the behavior of water quality in irrigation operation over the last decade. Chemical contamination of river and groundwater is one of the most serious pollution problems, particularly in arid and semi-arid areas where typically there is a deficiency in water resources. Chemical pollutions and waste water pollutions in river and GW are not normally identified until some illness has affected the local population.