What is depletion of water table?

Explanation

Sea water is the only proportion of water on the earth's surface which is saline is not suitable for consumption. Only river water and comprising 0.01% are sources of water. River water being limited and rivers drying up during the summer season, the dependence on under ground water is inevitable. The underground water is drawn out by using various devices such as hand pumps and tube wells. This water is again replenished by means of seepage of water in to the ground during rainy season. When there is an imbalance between underground water and its replenishment the level of water table may go down. This is called depletion of water table.