Question

In your city, critical shortage of water has been reported due to a sharp fall in the groundwater level. What steps you will take to check this scarcity of water?

Answer 1

Immediate action is needed to solve water scarcity caused by a fast reduction in groundwater levels. This includes developing policies, legislation, and effective conservation methods. Rainwater harvesting is an important technology for recharging groundwater. Several recharge structures can be used:

1. Borewells and Dugwells: Used to increase the groundwater table.
2. Recharge Pit: Excavated into the earth and walled with brick or stone walls, with regular openings.
3. Percolation Pits: Bored holes in the earth allow rainwater to percolate to depths of 3-10 meters.
4. Recharge Trenches: Excavated and filled with porous medium, such as pebbles, boulders, or brick bats, to collect surface runoff.
5. Permeable Surfaces: Grass patches can effectively store rainwater.
6. Porous Tiles: Can be used on pavements and walkways.