**9. Artificial groundwater recharge system at President's Estate, New Delhi**

President's Estate having catchment area of about 1.20 km<sup>2</sup> is located on the Northern flank of Delhi ridge. Extravagant groundwater development has resulted in annually groundwater fallen by 6 to 13 m. Four metre thick aquifer has become de-saturated over an area of 0.7 km<sup>2</sup> . The artificial groundwater recharge in the catchment area is being done through two dried dug wells, one vertical recharge shaft, one injection well, two recharge trenches with injection wells and so on [10].

Annually approximately 28,170 m3 rainfall-runoff water collected and used to recharge groundwater (**Figure 8**).

**Figure 8.** *Artificial groundwater recharge structure at President's estate.* 
