TN-46 : Assessment of groundwater in hard rock areas

Abstract

The present study is. an attempt to evaluate the ground water resources occurring in the hard rock regions. In this note the various disciplines involved in hydrogeology are discussed specifically in relation to ground water resources study. Broadly this may be described as the definition of the aquifer geometry, the determination of hydraulic properties of the aquifer in the hard rock regions, the assessment of ground water in the hard rock region and the various lithological and structural relations in adopting the methods for ground water exploration are also described. The hydrochemistry of the ground water and the various modes of contamination of ground water are also included in the study. The Economics of dug wells and dug- cum- bore wells in hard rock-regions are discussed in the note.