ARTIFICIAL RECHARGE

The basic purpose of artificial recharge of ground water is to restore supplies from aquifers depleted due to excessive ground water utilization .The artificial recharge to ground water aims at augmentation of ground water reservoir by modifying the natural movement of surface water utilizing suitable civil construction techniques. Artificial recharge techniques help in addressing the following issues-

1.      To enhance the sustainable yield in areas where over-development has depleted the aquifer.

2.      Conservation and storage of excess surface water for future requirements, since these requirements often changes within a season or a period.

3.      To improve the quality of existing ground water through dilution

4.      To remove bacteriological and other impurities from sewage and waste water so that water is suitable for re-use.

The basic requirements for recharging the ground water reservoir are:

a) Availability of non-committed surplus monsoon runoff

b) Identification of suitable hydrogeological environment and sites for creating subsurface reservoir through cost effective artificial recharge techniques.