Ground Water Wells

How Water Wells Are Drilled

  • Water well drilling machines are used to make an "engineered hole" through the soil and rock layers to reach groundwater.
  • The cost of a modern drilling machine is about $500,000!
  • Not all water wells are drilled the same way, but rotary drilling is the most common method.
  • 6,000 new water wells are drilled in America every week.
  • There are more than 15 million wells in use in America for individual homes and farms.
  • Groundwater is the source of daily drinking water for nearly 150 million Americans.
  • There are still nearly one million old-fashioned "dug wells" in use.  These are very difficult to keep free from water quality problems.  Deep drilled wells are much more reliable and provide safer drinking water.

Equipment Used In a Water Well

  • Casing is put in the well to stop the hole from collapsing and to prevent the risk of surface water getting into the well.
  • A seal of "grout" is often placed between the casing and the drilled hole to stop any surface water moving down outside the casing.
  • The most common well pumps in use are called "submersible."  They are powered by electricity and push the water up to the surface.
  • In any area where there is frost, the water pipe comes from the well through a pitless adapter below ground level.  In warmer climates there is no need to use a pitless adapter; the water pipe can come out of the top of the well.
  • Water should drain away from the well head and the well cap should be tightly sealed.

Protect and Conserve Groundwater

  • MEWS uses a multi-step water treatment process to ensure safe, high-quality drinking water.  Water treatment helps nature purify water and keeps pollution out of our water supplies.
  • In a home with a private well, it is the home owner's responsibility to test the water once a year.
  • Most home wells do not require chemicals for treatment because the water moves straight from the rocks via the well into the house.
  • If a home does use water conditioning equipment, for example to reduce iron or hardness, the system should be kept in good working order.
  • It makes sense to conserve water, whether your home is on a well or public system, and to ensure that no harmful chemicals are disposed of down the drain.
  • There are more acres of garden lawn in America than any other crop!  To protect groundwater, home owners should go easy on using lawn chemicals and pesticides.
  • Homes with a well and public supply must never connect the two systems.