Rain Water Harvesting

    Rain water harvesting is the gathering, or accumulating and storing, of rainwater. Traditionally, rainwater harvesting has been practiced in arid and semi-arid areas, and has provided drinking water, domestic water, water for livestock, water for small irrigation and a way to replenish ground water levels.

    What is rainwater harvesting ?

    The principle of collecting and using precipitation from a catchments surface.

    Artificial Recharge to Ground Water is a process by which the ground water reservoir is augmented at a rate exceeding that obtained under natural conditions or replenishment.

    Any man-made scheme or facility that adds water to an aquifer may be considered to be an artificial recharge system. Rain water harvesting is essential when:
  • Surface water is inadequate to meet our demand and we have to depend on ground water.
  • Due to rapid urbanization, infiltration of rain water into the sub-soil has decreased drastically and recharging of ground water has diminished.

    There are two main techniques of rain water harvesting:
  • Storage of rainwater on surface for future use.
  • Recharge to ground water.