Improvement in groundwater storage by artificial recharge structure constructed in the Vaniyar sub basin of the Ponnaiyar river in South India. Groundwater level was measured in and around the artificial recharge structures before and after its construction. After the construction of the artificial recharge structure, water level has measured. The groundwater table was generally at a depth of 14 m below ground level before the construction of artificial recharge structures. In this study area after the construction of artificial recharge structures, the groundwater level has increased by about 3.5 m at Vallymadurai dam constructed across Varatar stream. The temporal variation in groundwater level was compared with the water level fluctuation in and around the artificial recharge structures. The groundwater level in wells that are located closer to the check dam is considerably gaining. An area of about 300m, 500m and 1000m buffers is benefited by the rise in groundwater level around the check dam. The study indicates no reduction in recharge due to expected physical or organic clogging. Artificial Recharge Structures (ARS) constructed across the stream is ideal for augmenting groundwater storage in this sub basin.
