Locating Collector Well Sites in Coastal Part of Andhrapradesh

Abstract

Coastal part of Guntur district spread over an area of around 380 sq Km along the coast of the Bay of Bengal. Groundwater from the sands of this area is being extracted through shallow pits. This region contains potable groundwater free move along the surface of brackish water in the lower clay formations. Hence, collector wells need to be constructed in this type of regions for extracting potable groundwater. Superficial sand aquifer’s thickness is very limited and its occurrence is non- uniform in the region. Subsequently, these sandy aquifers need better management and control methods to extract groundwater without pollution and recharging to maintain groundwater balance in this region. Electrical resistivity survey using traversing method, and vertical electrical sounding methods are conducted in these areas to locate suitable places contain sufficient permeable coarse sand which yields good amounts of fresh water. It helps for similar studies in coastal zones throughout the world.