Characterisation of the Aquifers for Resource Management and Protection

Abstract

The base line hydrogeological survey for village Vadhane was conducted with a view to demarcate the aquifer boundaries to manage the groundwater resources for the sustainability of drinking water sources. To delineate the aquifer boundary, further, comprehensive geomorphological, geological and geophysical investigations were carried out. The depth to water level and water level fluctuation maps were also used to confirm the boundary and thickness of the aquifer. Vertical electrical soundings (VES) were carried out in the area to understand the subsurface geo-electrical distribution. A grid of 1 km x 1 km was laid down in the study area and ten VES profiles were carried out at the intersection of these grid points. The integrated studies have indicated the fine-grained jointed massive basalt and weathered zeolitic basalt are predominant water bearing formations within the village. The groundwater worthy zone is restricted to the depth of 10-20 m bgl. The hydrogeological inputs were further utilized for management and protection of the resource.