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In the Dichaun- Kalan formation upto a depth of 48 m below
ground level is predominately with sand and below 48m it is predominately
clay and kankar.
A comparative
study of water level map of 1960 and 2002 shows in Dichaun-Kalan the
water level which was at 2 to 5m below ground level has gone down
to 10 to 20 mts below ground water level.
In
Dichaun-Kalan the occurrence of fresh water in alluvium formation
is upto a depth of 48m. 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 Dichaun-Kalan where the ground water level
is below 10m rainwater harvesting can be taken up. The study of the
water level map shows that in some places the water level has gone
to 15 to 20m below ground level. In these place recharge borewell
depth can be restricted to a depth of 10 or 12m. So when the water
travels in this soil media then natural filtration will take place,
before the water reaches the main aquifer.
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