BAWANA  
Technology Urban
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I.SUB SURFACE GEOLOGY

In the Bawana the first sand formation exists upto a depth of 12m below ground level (bgl), which is followed by layer of Kankar and silt which exists upto a depth of 16m bgl, which is followed by impermeable layer of clay and kankar from 16 to 20m below ground level.This clay layer is followed by layer of Kankar and silt upto 50m depth.

II.WATER LEVEL

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A comparative study of water level map of 1960 and 2002 shows in Bawana the water level which was at 2 to 5m below ground level has gone down to 5 to 10 mts bgl.











III.WATER QUALITY

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In Bawana the occurrence of fresh water in alluvium formation is upto a depth of 30m to 60m. Below that level saline or brackish water occurs. The amount of fresh water is decreasing due to extraction.











IV.RECOMMENDATION FOR AUGMENTATION OF GROUNDWATER
The intake capacity of recharge structures will be low in shallow water table condition. Hence in Bawana where the ground water level is below 10m rainwater harvesting can be taken up.



 

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