About Groundwater   

Groundwater is the main source of water for day to day use.  Groundwater has many benefits. It is cheap to develop because of its naturally good quality and widespread occurrence. It is reliable even in times of drought due to the large amounts stored under the surface. It is also protected against catastrophic events - if natural disasters or war disrupt surface water distribution, then groundwater reserves can easily be developed. Boreholes driven down into the saturated layer under the ground yield water for irrigation and urban use. It is also extensively used as a low cost rural water supply.

Some areas near the surface may not be saturated with water and only have an intermittent supply of water. But, many areas deeper under the surface are saturated with water accumulated over hundreds or even thousands of years. These areas often supply permanent springs and can be tapped with boreholes to provide water. When we draw groundwater from deep aquifer supplies, we are tapping into water locked away under the surface and filtered through layer upon layer of rock. This is one of the reasons why groundwater is so reliable. The water in these areas may even be protected against recent surface pollution, providing a high quality supply where none was previously available.

Did You Know....?

  • 97% of the water on earth is in the oceans as saline water
  • Only 3% of the water on earth is freshwater
  • About 2.4% of the water on earth is permanently frozen in glaciers and at the polar ice caps
  • About 1/2 of 1 % of the water on earth is groundwater
  • Only about 1/100 of 1% of the water on earth is in the rivers and lakes
  • It takes 39,090 gallons of water to make a new car, including the tires
  • Over 17,000,000 houses use private wells for their drinking water supply
  • A person can live about a month without food, but can live few days without water

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