Water Conservation Projects for India’s Water Security

Recharge structure known as Recharge Shafts (RS) are being used in ponds for water onservation through rainwater harvesting. RS can be used to track the surface flow of the water in ponds. Natural filter used in RS helps to filter water to go down up to 100 ft.

Recharge Borewells / Injection Well : for water to recharge deeper aquifers. These are shallow recharge borewells which acts like a point recharge structure. The borewells are generally drilled up to 80 to 100 m as per the reported information. They help to augment groundwater recharge into the dried up fracture horizon and lineament zones.

De-silting river beds and water bodies: involves the removal of silt deposited on the river bed over a period of time resulting in a reduction in water carrying capacity, it also affects water percolation rate. Desilting helps to regain the water-carrying capacity of the water body by deepening it. The silt removed from the river bed has high nutrient content which works as soil enricher if used in the farms.

Farm Ponds: are constructed at the joining entry point of the stream to the existing tank to enable the availability of surface water for cattle and other local needs. These water pools help to minimise evaporation losses and also help to collect the subsurface flow from the natural streams, as these water pools are constructed at the meeting point of streams with tanks. WP also helps to maintain the availability of water to meet the water requirements of human beings, cattle, birds, and other natural species. According to AOL authorities, these are also called "micro eco-restoration cells"