Summary:
- An underground layer of rock that is saturated with groundwater is called an aquifer.
- Aquifers are generally found in porous rock, such as sandstone.
- Water infiltrates the aquifer from the surface.
- An aquifer close to the surface is also more likely to become polluted.
- Pollutants can seep down through porous rock in recharge water.
- People use fresh water from aquifers from springs or wells.
- People have depended on water from wells for thousands of years.
- A well is a hole that is dug or drilled through the ground down to an Aquifer.