The Different Types of Wells

October 15, 2022 Published by Leave your thoughts

Creating a water source on a property is an important part of the construction process. In most cases, you will need access to a safe water source before moving ahead with other aspects of the construction. Understanding the different types of wells is important to make the best choice for your situation. Keep reading to learn more about the types of wells that are available.

Drilled Wells

The drilled well is a popular well choice among homeowners and business owners. A drilled well is constructed with a cable tool or a rotary-drilling machine. Some drilled wells will require the installation of a casing and screen to prevent the entrance of sediment into the water and prevent the well from collapsing. This is often needed if the well is being drilled through unconsolidated material.

A drilled well can be drilled over 1,000 feet deep. If the casing is needed, then the space around that will be sealed with grouting material such as cement or bentonite clay. Drilled wells are not a DIY project. You must hire a well drilling contractor that is licensed for such projects. You should check with your local building and zoning department concerning the necessary permits to begin well drilling.

Driven Wells

Another type of well is the driven well. A driven well is constructed by driving a pipe in water-bearing sand or gravel. At the bottom of the pipe, a screened well point is attached. These are a very inexpensive type of well option.

This type of well is also easy to construct. However, this type of well cannot tap into deep water, it can only access shallow water. The drawback to this type of well is that the water it will draw is easily contaminated because it is so close to the surface. Many contaminants near the surface can affect the safety and health of drinking water.

Driven well can either be constructed by hand or by machine. A hand-driven well can only go down about 30 feet. A machine-driven well can often reach depths of 50 feet or sometimes more.

Dug Wells

A third option is the dug well. A dug well is often excavated by hand with a shovel. The hole is dug below the water table. The shaft will be dug until incoming water exceeds the digger’s ability to bail. This type of well is often lined with stones, bricks, or tile to prevent collapse. The mouth of the well is often covered with a cap of wood, stone or concrete.

A bored well is a type of dug well that utilizes machinery to dig. These types can go deeper under the water table. This type of well is also susceptible to contamination.

If you are in need of well construction or well repair, reach out to a well drilling contractor in your area. 

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