● The water table may go down if the water is not sufficiently replenished. ● This may happen due to many reasons. ◦ Increase in the population (creates demand for construction of houses, shops, offices, roads, and pavements. This decreases the open areas likeparks and playgrounds. This, in turn, decreases the seepage of rainwater into the ground.) ◦ Industrial activities, ◦ Agricultural activities, ◦ Scanty rainfall, ◦ Deforestation and ◦ A decrease in the effective area for seepage of water.