How do I check the depth of my existing Borewell?

Water depth can be measured with a pressure sensor lowered down the bore hole and immersed in the water. This is call hydrostatic depth method. Alternatively a standard float-and-pulley sensor system with a small (50mm or 100mm) float and a pulley at the top of the bore hole can also be used to measure depth.

Can an existing bore be drilled deeper?

Can an existing borewell be deepened to increase the yield? Deepening an existing bore well to a greater depth is undoubtedly cheaper than constructing a new bore well as there will be saving on the installation of casing pipe and lesser depth of drilling.

How do I know if I have a deep or shallow well?

The diameter of your well casing determines what type of well pump you need. If you do not have a well casing, you have a shallow well. If your well casing is 4” or more in diameter, you can use either a jet well pump or a deep well submersible pump, depending on the depth of your well.

How deep does groundwater go?

30,000 feet
Groundwater may be near the Earth’s surface or as deep as 30,000 feet, according to the U.S. Geological Survey (USGS).

What is the average depth for a water well?

Most household water wells range from 100 to 800 feet deep, but a few are over 1,000 feet deep. Well yields can be increased by fracturing the bedrock immediately around the drill hole and intercepted rock faults.

Are shallow wells better than deep wells?

Deep wells have higher protections against potential surface contaminants. The equipment involved in these types of wells is less visible than with shallow wells, which require an above-ground well housing to contain the well pump. Their water tends to last longer and require less monitoring for quality.

Where do we find groundwater?

Groundwater is the water found underground in the cracks and spaces in soil, sand and rock. It is stored in and moves slowly through geologic formations of soil, sand and rocks called aquifers.

Can underground water be detected?

The ground penetrating radar (GPR) system is used for underground water detection. GPR is a promising technology to detect and identify aquifer water or nonmetallic mines. One of the most serious components for the performance of GPR is the antenna system.

How do you measure the depth of a well?

Measure from the bottom of the weight to the ground level mark on your string. This is the depth of your well. For relatively shallow wells, 30′ or less, we sometimes use a tape measure directly, but a weight on a string assures that the line used to make a measurement is absolutely straight, so more accurate.

How can borewell water in a bore of 350 feet deep not get polluted?

The borewell water in a bore of 350 feet deep cannot also get polluted by this water because the soil bacteria will purify the pollutants.

How far apart to connect two borewells?

One borewell is connected to another 6 ft away contaminated from sewage lines passing nearby. Any suggestions? The contamination will move towards the new borewell also as there is a direct linkage which was established while drilling itself.

Is it safe to drill a new borewell near a neighbour?

Drilling a new borewell nearby runs the same risk of being connected with the neighbour’s borewell. It is better to drill further in the same bore well. Since there is some water at a great depth in the well, it is worth lowering the pump to 1-1.5 m above the well bottom and pumping out water.