| |
In
the Ujwah the clay and kankar formation extends upto the depth of
16m below ground level. Below 16m the formation is predominately of
kankar and silt.
A
comparative study of water level map of 1960 and 2002 shows in Ujwah
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
Ujwah the occurrence of fresh water in alluvium formation is upto
a depth of 30m. 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 Ujwah 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.
|
|
