Decentralisation is one of the best ways to ensure energy and water security .
As far as water is concerned , harvesting rainwater and reusing grey and black water after necessary treatment can completely meet the household requirement .
One of the other ways to ensure water security is by making full use of the shallow Aquifer . water present in soil pores at shallow depths at atmospheric pressure is called a shallow Aquifer or an unconfined aquifer .
The rainwater from the roof and other surfaces can be pushed into the soil through a recharge well which saturates the soil .
A withdrawal well can be made at a suitable distance , which can be used for extracting the water from the soil pores.
