CSA Xpert

Injection wells are used to recharge GW with surface water directly. Water for recharge is directed through a recharge pipe to the lowermost part of the well to evade entrapment of water bubbles in the GW aquifer. The quality of source water should be good enough, not to contain much silt in it. This method is costlier than the other indirect GW recharge method because of the boring of wells. However, sometimes abandoned tube wells are used for GW recharging using this method. Hydraulically, the groundwater recharge in the injection well is determined by the permeability of the aquifer, rate of pumping, distance from the surface water source and well type.