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In
the Mandi area the first Layer of clay and kankar extends to depth
of 8m bgl. This is followed by weathered and fractured quartzites.
A comparative
study of water level map of 1960 and 2002 shows in Mandi the water
level which was at 20 to 30m below ground level has gone down to 30
to 45 mts below ground water level.
In
Mandi 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 |
In
this area the rainwater can be diverted to a depth of 20 to 25mts.
By doing this the rainwater will under go a natural filtration in
the subsoil before it reaches the main aquifer. The recharge bore
in the recharge well should be of 20 to 25mts bgl depth.
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