ground water, water well drilling, water table

Photo Courtesy USGS General Information

The layers of soil and rock below the water table are classified in two broad categories:
Aquifers are water bearing layers (or formations) that yield water to wells in usable amounts. Typical aquifers are made of sand, gravel or sandstone. These materials have large enough pore spaces between grains that water moves freely. Coal and shale are also suitable aquifer materials provided they are fractured (or cracked) enough to allow water to over through them easily.
  •  Unconfined aquifers are exposed directly to the atmosphere through openings in the soil. The volume of water in unconfined aquifers is mainly dependent on seasonal cycles of precipitation that refills the aquifer. A water table aquifer is an example of an unconfined aquifer.
  • A confined aquifer is trapped below an upper confining layer of rock, clay or shale. When a well is drilled into a confined aquifer, the water level rises above the level of the aquifer. Aquifers that are completely saturated with water and under pressure are called artesian aquifers. A flowing artesian well results when the pressure in the aquifer raises the water level above the ground surface.
Aquicludes are water bearing formations that cannot yield adequate water for wells. Examples of these are clay and unfractured shale and coal. The pore spaces between grains of these materials are so small that water moves extremely slowly.
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Factors Affecting Groundwater Quality

There are several factors that affect groundwater quality including Depth from surface, Permeability, climactic variations, and chemical makeup of the sediments through which groundwater moves. An understanding of the factors that affect groundwater quality helps us make decisions on well depth and the best water quality for a particular application.

Photo courtesy of MVMQuality Drilling

Water Well Pumps & Systems
When you turn the tap you set a series of actions in motion.
To ensure adequate water pressure, well water is stored inside your building in a pressure tank. Normal water pressure is between 40 and 60 psi (pounds per square inch).
As water continues to run, the volume of water in the pressure tank drops, which also lowers the water pressure.

When the pressure drops below 40 psi a pressure switch activates the water pump system. The submersible water pump pumps water into the pressure tank until normal pressure is reached and the pump automatically shuts off. A safety valve installed on the pressure tank is designed to release pressure should it exceed 75 psi.

info courtesy of Cushing & Sons


Facts and Resources
Understanding Ground Water

What is ground water, and where does it come from?
Ground water is the water that fills cracks, voids, and other openings in beds of rocks, sand, and soil. Each drop of rain that soaks into the soil moves downward, fills available space, and forms a large subsurface storage of water that interacts with any substance that comes in contact with it.

Many streams and lakes are “windows” to the earth’s water table. In large part, a stream represents water that has moved from the ground into the stream channel.

Most ground water flows directly into streams, rivers, and lakes through streambeds or the bottom of lakes. On occasion, ground water emerges out of an aquifer at a land surface—which makes a spring.

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Water Well Drilling
A water well is an artificial excavation or structure put down by any method such as digging, driving, boring, or drilling for the purposes of withdrawing water from underground aquifers.

A well is made by reaching ground water in the water table. Ground water is stored naturally below the earth's surface. Most ground water originates as rain or snow that seeps into the ground and collects. Ground water provides about 20 percent of the fresh water used in the United States. Most rural areas, and some cities depend on ground water as their source for water.

A Well Driller's Passport

The well driller stood before the heavenly gate
His features pinched and cold.
He bowed before the man of fate
Seeking admission to the fold.

What have you done, St. Peter asked
To gain admission here?
I was a Well Driller, Sir
For many a weary year.

The pearly gate swung open wide
And St. Peter pressed the bell.
Come in and choose your harp he said,
You've had your share of HELL!

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Pump Selection & Installation
Before we recommend a pump, we will factor in:
How much water will be needed at peak demand
The well's yield potential in gallons per minute
Diameter of the well at the pumping level
Depth of ground water below the surface
Distance and elevation above the well
Future needs, such as irrigation

Dear Mr. Roberts,

I would like to thank you and your employees for the excellent, fast and friendly service that was provided for me. To have a busy company such as yours come to my house and install a pump on the same day was exceptional. Your company and employees should be recommended, for this is rearely seen these days.

I am highly Satisfied and will continue to use your services if necessary in the future, and will recommend you to my family, friends, and neighbors if they are in need of any well services or installation.

Lizabeth M.

With hundreds of satisfied customers, our track record speaks for itself.    

The Original Robert's well drilling company.

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