There is also another well, at about 250 meters, with a depth of 30 meters, which is situated in the granites.
At Baitul village, 10 meters from the Nakkavagu, the total depth of alluvium is about 8.25 meters and water table is about 7.6 meters below ground level. The water table generally in the alluvium is shallow, less than 5 meters, but in granites it is more than 6 meters.
