Review of significant works in assessment of ground water vulnerability in India.

Abstract

Ground water pollution is the artificially induced
degradation of natural ground water quality. In India, water
pollution is a serious problem as almost 70% of its surface water
resources and the ground water reserves are already
contaminated by biological, organic and inorganic pollutants.
Vulnerability mapping is a technique for quantifying the
sensitivity of the resource to its environment, and as a practical
visualization tool for decision-making. In recent years,
Geographic Information Systems (GIS), Optimised DRASTIC
index method, neural networks and fuzzy logic techniques and
other mathematical and statistical methods have been used for
the assessment of GW vulnerability across the world using
several hydrological database of concerned basin. This paper
reviews the significant research work of groundwater
vulnerability assessment done in different states of India.