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Well Drilling

Are you looking to purchase your first water well system? Don’t let the technical terminology scare you.The following definitions will help you better understand water well systems. It is important that you know as much as you can about your water well system so you can ensure that it is always providing quality water.

Monitor Wells A well used to monitor hydrologic data, such as water levels or water quality parameters.

Irrigation Wells constructed for the purpose of supplying water for other than potable drinking purposes.

Commercial Wells Large capacity basins for a larger population use.

Residential/Water Wells For basic home drinking water use.

Geothermal ground water heat exchange wells using the earth’s thermal energy with no flames or gas.

We drill all the above wells in addition to test wells, Thermal conductivity test boreholes, and also provide a down hole video service. We also drill and install booster pumps, submersible Turbines, and line shaft turbines.

TYPES OF DRILLS

Rotary In rotary drilling, a drill bit is attached to a string of drill pipe. As the drill string is rotated, the bit is activated by high pressure air and drill cuttings are forced out of the well by the air pressure. Water is then added with high pressure air for two reasons, one, to keep the drill bit cool and two, free of debris.

Pounder Cable Tool Cable-tool drilling is an excavation process that utilizes a heavy bit attached to the end of a wire cable. This bit is then dropped and elevated repeatedly, forcing itself downward. Periodically, cuttings are bailed out of the hole to avoid impeding the drilling process. While slower than rotary drilling, the cable-tool method is responsible for millions of wells around the world.

CONSTRUCTION

  • Well logs are documents containing vital information about the history of the well and the ground surrounding it. Contractors file well logs with state departments upon completion of all wells, but well owners should have a copy too.
  • Well casing is the tubular structure placed in the drilled hole to maintain the well opening. The casing also confines the ground water to its zone underground and prevents contaminants from mixing with the water.
  • Well screens are filtering devices at the bottom of the casing. They allow water to move through the well, while keeping out most gravel and sand
  • Grouting is a cement-like fluid injected into the hole to protect the well casing. It helps prevent corrosion and infiltration of contaminants.
  • On top of the casing will be a well cap, which should fit snugly so debris, insects, or small animals can’t find their way into the well system.
  • Yield is the amount of water produced by a well. The quantity of water can be expressed in rates of gallons per minute, per hour, and per day. A low yield is a decrease in the amount of water produced.

 

MAINTENANCE

  • When a water well fails to produce the amount of water that it did when it was installed, a contractor can often “rehabilitate” the well. Well rehabilitation is based on several factors, including the ground that the well is drilled in, the well’s construction, and the problem causing the decreased flow
  • Low flow is often caused by a drop in the water table, plugged holes along the well’s casing, and/or incrustations on the well screens.
  • Well testing will ensure that the well is running properly and will check for contaminats that can impede the well from operating at peak capacity. It is recommended that you have your well tested by a professional contractor once a year.

 

TESTING

  • The most common problem associated with ground water is hard water, which is caused when there is an abundance of calcium and magnesium. Hard water causes no health problems but can cause soap curds to form on pipes and plumbing fixtures. A water softener usually solves the problem.
  • A pH test can determine if mineral deposits or corrosion are a problem due to hydrogen. Literally standing for “potential of hydrogen,” the test measures the intensity of the water’s acidity and alkalinity.
  • A “rusty” taste in water is a result of iron in ground water. It also can stain pipes and clothing. There are several methods of treatment, including installing a water softener. Aeration – the addition of oxygen to the water – can aid in the precipitation of iron, which removes it from the water as well.
  • A rotten egg smell is often associated with sulfur in water. Sulfides also can cause corrosion to plumbing and darken water. Chlorination, a reverse osmosis system, or a negative ion-exchanger are effective in combating sulfur, while aeration is effective against hydrogen sulfide gas.
  • Silica comes from the weathering of silicate minerals in the ground. Large amounts can cause scaling in pipes.
  • Most nitrogen in ground water comes from the atmosphere. However, nitrogen compunds also can reach ground water through fertilizers, manure, sewage, and landfills. The most common forms in ground water are ammonia, nitrate, and nitrite. Nitrates can be especially toxic to children under six months of age. However, there are a variety of treatment methods, including reverse osmosis systems with a water softener.