Remote Sensing and GIS Techniques for Evaluation of Groundwater Quality in Municipal Corporation of Hyderabad (Zone-V), India

Abstract

Groundwater quality in Hyderabad has special significance and needs great attention of all concerned since it is the major alternate source of domestic, industrial and drinking water supply. The present study monitors the ground water quality, relates it to the land use / land cover and maps such quality using Remote sensing and GIS techniques for a part of Hyderabad metropolis. Thematic maps for the study are prepared by visual interpretation of SOI toposheets and linearly enhanced fused data of IRS-ID PAN and LISS-III imagery on 1:50,000 scale using AutoCAD and ARC/INFO software. Physico-chemical analysis data of the groundwater samples collected at predetermined locations forms the attribute database for the study, based on which, spatial distribution maps of major water quality parameters are prepared using curve fitting method in Arc View GIS software. Water Quality Index (WQI) was then calculated to find the suitability of water for drinking purpose. The overall view of the water quality index of the present study area revealed that most of the study area with > 50 standard rating of water quality index exhibited poor, very poor and unfit water quality except in places like Banjara Hills, Erragadda and Tolichowki. Appropriate methods for improving the water quality in affected areas have been suggested.

Mapping the groundwater quality in Coimbatore city, India based on physico-chemical parameters

“…Monitoring of pollution patterns and its trends with respect to urbanization is an important task for achieving sustainable management of groundwater [11]. An integrated GIS study proves to be an essential tool to evaluate and quantify the impacts of land use / land cover on ground water quality.…”

Evaluating Land Use Effects on Groundwater Quality in Lagos-Nigeria Using Water Quality Index

“…The index serves as a tool for assessing the suitability of water quality. It also helps to harmonize complex water quality data into information that is understandable and usable by the public [9]. Thus, it becomes an important parameter for the assessment and management of groundwater.…”

Evaluation of water quality index and its impact on the quality of life in an industrial area in Bangalore, South India

“…The alkalinity values at all locations were well above the desired limit of BIS(200mg/L),which may be due to decay of organic matter and weathering of rocks and minerals (Asadi et al, 2007). The high value at these locations is attributed to the effluents from the pharmaceutical and drug industries which reach these points due to the westerly slope of the area (Fig:4).…”