Question

What are the various methods of recharging ground water aquifers?

Answer 1

The various methods of recharging groundwater aquifers include:

1. Percolation Tanks and Check Dams: Small reservoirs or low masonry walls are built across natural streams to capture monsoon runoff, allowing it to slowly sink down into the water table over time.
2. Rooftop and Surface Rainwater Harvesting: Diverting clean rainwater from building rooftops or open paved surfaces through filtration pipelines and directly into specialised storage pits that feed shallow aquifers.
3. Recharge Pits, Trenches, and Shafts: Deep pits or linear trenches are created and filled with stacked filters of boulders, gravel, and sand, bypassing low-permeability topsoil and allowing pure water to flow directly into deeper aquifers.