Impact Assessment of Demonstrative Project on Artificial Recharge to Groundwater in Gangavalli Block, Salem District, Tamil Nadu

A total of 41 nos of artificial recharge structures (ARS) were constructed in Gangavalli block, Salem District, Tamil Nadu. The area is located in the central parts of the state and the block is marked with groundwater over exploitation. The project was executed to demonstrate the efficacy of the ARS in the aquifer type. The contributing aquifers are made up of weathered zone and underlying fractures within granite gneiss and charnockites. The area is depending on groundwater resources for all utilisation and the abstraction structures are dug well and borewell. The efficacy of the ARS constructed in the area has been assessed by studying its impact on hydro-geological scenario and agricultural practices.