GROUND WATER QUALITY ANALYSIS AND MAPPING USING GEOMATIC TECHNIQUES

Abstract

Groundwater quality in Lucknow district has special significance and needs great attention of all concerned since it is the major alternate source of domestic, industrial, drinking and irrigation. In this work the ground water quality of Lucknow District which is in Uttar Pradesh, India has been estimated. Relevant maps for Lucknow district have been collected. The data base obtained for water quality testing data from CGWB is used as attribute data base for preparation of thematic maps showing distribution of various water quality parameters. Water Quality Index has been calculated and thematic maps of the same were also developed. The results of the water quality analysis work were presented in the form of maps which can be used for better .understanding of the present water quality scenario of the study area. The variations of water quality in different locations were discussed. 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 excellent. The WQI ranges. from 50-100 in the study area like Khujauli, Arya nagar, Lucknow and some part of Bakshi Ka Talab was good for drinking as well as irrigation purpose. Ground water quality is poor in Kathwara in Bakshi Ka Talab mandal. Weighted overlay maps are created from the spatial distribution layers of ten water quality parameters. Quality analysis of drinking water from Water quality index, spatial distribution maps of individual water quality parameters and overlay map were found for the stress zones in Lucknow district. By using Wilcox, salinity diagrams and overlay map, the ground water in Lucknow district area was divided into suitable and unsuitable categories for irrigation purpose.