Once an aquifer is contaminated, the process of restoring the quality of water is generally time-consuming and expensive, and it is often more cost effective to locate a new source of water. For these reasons, the restoration of an aquifer is usually...

An aquifer is water-saturated geological layer that easily releases water to wells or springs for use as a water supply. Also called ground water reservoirs or water-bearing formations, aquifers are created and replenished when excess precipitation...

An aquifer is a body of sand or porous rock capable of storing and producing significant quantities of water. An aquifer may be a layer of loose gravel or sand, a layer of porous sandstone, a limestone layer, or even an igneous or metamorphic body of...

The area in which water enters an aquifer. In a recharge zone surface water or precipitation percolate through relatively porous, unconsolidated, or fractured materials, such as sand, moraine deposits, or cracked basalt, that lie over a water...

An aquifer is an underground layer of water-bearing permeable rock or unconsolidated materials (gravel, sand, silt, or clay) from which groundwater can be usefully extracted using a water well. The study of water flow in aquifers and the...

When you are "talking ground water," it won't be long before you will be asked to explain the word aquifer. There are many variations of geology and hydrology that may make an aquifer. Some aquifers extend over long distances and to great depths....

Frederick L. Paillet [a] Ronald S. Reese [b] Abstract Integration of lithologic logs, geophysical logs, and hydraulic tests is critical in characterizing heterogeneous aquifers. Typically only a limited number of aquifer tests can be performed, and these need to be...

In the five years since billionaire oilman T. Boone Pickens started trying to sell water from beneath the vast empty spaces of West Texas, he hasn't had any customers.Not one city or agency has signed on, even after years of drought conditions and soaring water...

With water shortages a possibility looming in the state's future, this city's starting to look at what it would take to turn sewage back into water that's pure enough to drink."This is a homegrown resource. It is the most reliable supply you can have," said...