Can we use rainwater to Borewell?

The sumps have capacity of 16,000 litres each. Layout of the RWH unit. Rainwater falling on one part of the rooftop (highlighted in yellow), is sent to sumps and a borewell after filtration. Water from the smaller rooftop, highlighted in blue, is used exclusively for borewell recharge.

What care should be taken while recharging a well or Borewell?

The centre recharge well should be at least 3 times the distance of the depth of basement. Make sure that the soil is not too loose while digging the recharge well. Extreme care is required while digging recharge well in loose soil. Also sufficient safety measures like shoring, safety helmets are taken care.

How long does it take rain water to reach well?

The time it takes for surface infiltration to reach an aquifer as deep as 400 feet may take hours, days, or even years, depending on the rate of recharge. In some of the flood-irrigated areas, groundwater levels in nearby domestic wells rise within a few hours to days of flood-up.

How does rain water harvesting recharge groundwater?

In areas where the surface soil is impervious and large quantities of roof water or surface runoff is available within a very short period of heavy rainfall, the use of trench/ pits is made to store the water in a filter media and subsequently recharge to ground water through specially constructed recharge wells.

How fast does groundwater recharge?

A velocity of 1 foot per day or greater is a high rate of movement for ground water, and ground-water velocities can be as low as 1 foot per year or 1 foot per decade. In contrast, velocities of streamflow generally are measured in feet per second. A velocity of 1 foot per second equals about 16 miles per day.

What is the benefit of groundwater recharge?

Groundwater recharge stores water during the wet season for use in the dry season, when demand is highest. Recharge can significantly increase the sustainable yield of an aquifer. Recharge methods are attractive, particularly in arid regions. Most aquifer recharge systems are easy to operate.

How long does groundwater recharge take?