![]() ![]() Water level measurements during this time are extremely important and reveal if the water level in the well comes back up to normal levels (the level before the well test started). Recovery is the period of time after the well pump has been shut down from the sustained yield test. While removing the existing well pump and installing a larger one to ensure the full well yield capacity testing is possible, it adds significantly to the cost and is not normally done. If the water level in the well drops to the level of the well pump, then the well is the limiting factor in the well test. If the water level in the well stays far above the pump during the entire well test, then the well pump is the limiting factor in how much water can be withdrawn from the well. To determine if the pump is the limiting factor in the well test, it is important to look at a few more pieces of information: pump depth and sustained pumping level. Installing a larger pump could potentially give the homeowner access to more water. The well test may show a yield of 5 Gallons per minute, but that number may be limited by the size of the pump installed in the well. It is important to note that the well yield and pump yield are very different. If you plan to build or remodel, verify what water supply/septic requirements/restrictions are in order to obtain a building permit. Relying on trucked water is not a good option as it can be expensive and unreliable. While it may be possible to drill another well, there is no guarantee that drilling another well will yield water. Consult with a landscaper to determine current/future water needs and minimum flow requirements for the landscaping, and then compare the sustainable flow rates from the well with the established requirements.Ī property with insufficient water should be carefully considered before purchasing. To evaluate water needs think about how many people will be living on the property and figure they will each use about 150 gallons per day. If this same well were to be used to provide for a 1 bathroom, 2 bedroom house with water saving fixtures and almost no landscaping, then it would be adequate, especially with a storage tank. Even with the storage tank, careful consideration should be taken to assure that the water supply were adequate for future needs. This well wouldn’t be up to the task unless a large storage tank has been installed with a booster pump. For example:Ī well is tested, produces 5 Gallons per Minute, and is going to provide water for a 5 bedroom 4 bathroom house with a garden and landscaping. This yield value should be compared with the potential needs that will be placed on the well. The single most important piece of information from a well test is the sustained yield of the well. Interpreting Well Test & Inspection Results ![]()
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