Aquifer
An underground layer of permeable rock, sediment or soil that can be tapped as a water source.
Aquifer Test
A test to determine hydraulic properties of an aquifer.
Source: Terms of the Environment ...
aquifer: Aquifers are places underground through which water flows, like sand, gravel, or even clay. People drill wells hoping to hit an aquifer for a good course of water.
Aquifer/Aquifer System: A water-bearing layer(formation) of rock or sediment capable of yielding sufficient, economical quantities of water to wells. Typically is unconsolidated deposits or sandstone or limestone. DIAGRAM ...
Aquifer storage and retrieval (ASR): Use of a well or series of wells to inject surface water into an aquifer during wet weather or low demand periods for purposes of withdrawal and use during drought and/or high demand periods.
Aquifer
Underground rock, sand or gravel formations which store water. Irvine Ranch Water District supplies about 50 percent of its water needs from the aquifers that make up the Orange County Groundwater Basin.
Arid ...
Aquifer: Areas underground where groundwater exists in sufficient quantities to supply wells or springs.
Aquifer: water-bearing formation of rock or soil that will yield useable supplies of water. May be classified as confined or unconfined.
Aquifer: A porous, water-saturated layer of sediment and bedrock under the Earth's surface; also described as artesian (confined) or water table (unconfined).
AQUIFER: An underground layer of sand, gravel, or rock through which water can pass and is stored. Aquifers supply the water for wells and springs.
aquifer - underground source of water.
arms control - coordinated action based on agreements to limit, regulate, or reduce weapon systems by the parties involved.
AQUIFER
A saturated geological unit (eg. sands, gravels, fractured rock) that can yield water to wells at a sufficient rate to support beneficial uses.
aquifer ...
Aquifer. A geologic formation of sand, rock and gravel through which water can pass and which can store, transmit and yield significant quantities of water to wells and springs.
Aquifer A layer in the soil that is capable of transporting a significant volume of groundwater.
Available chlorine A measure of the amount of chlorine available in chlorinated lime, hypochlorite compounds, and other materials.
B ...
Aquifer - A water-bearing stratum of permeable rock, sand, or gravel.
B
Babble - To make a continuous low, murmuring sound, as flowing water.
Aquifer
A water-bearing layer of rock or sediment that is capable of yielding useable amounts of water. Drinking water and irrigation wells draw water from the underlying aquifer.
Arsenic ...
Aquifer: A geologic formation, group of formations, or part of a formation that contains sufficient saturated permeable material to yield significant quantities of water to wells and springs.
Aquifer - A water-bearing layer of soil, sand, gravel, or rock that will yield usable quantities of water to a well.
aquifer : An underground geological formation, or group of formations, containing usable amounts of groundwater that can supply wells and springs.
aquifer (ACK-wi-fer). A natural underground layer of
porous, water-bearing materials (sand, gravel) usually
capable of yielding a large amount or supply of water.
Aquifer
A saturated, permeable geologic formation or structure that is capable of yielding water in usable quantities under ordinary hydraulic gradients.
Aquitard ...
aquifer test Pumping of a well at a constant rate for a fixed period of time with concurrent water-level measurements in one or more nearby observation wells. The time-drawdown data are analyzed to yield quantitative aquifer parameter values.
Aquifer
An aquifer is an underground geological formation or group of formations that contain water, a source of ground water for wells and springs.
Arid ...
A aquifer
Definition (english only)
1) Aquifer means a subsurface layer or layers of rock or other geological strata of sufficient porosity and permeability to allow either a significant flow of groundwater or the abstraction of significant ...
Aquifer - An underground source of water. This water may be contained in a layer of rock, sand or gravel.
Aquifer Vulnerability Mapping: Mapping the vulnerability of an aquifer to contamination from sources.
Aquifer
The water-yeilding earthen layer where water is stored. The geologic formation, thorough which water can flow horizontally and be pumped.
Aquifer test ...
Exempted Aquifer- Underground bodies of water defined in the Underground Injection Control program as aquifers that are potential sources of drinking water though not being used as such, ...
Confined Aquifer- An aquifer in which ground water is confined under pressure which is significantly greater than atmospheric pressure.
Unconfined Aquifer- An aquifer containing water that is not under pressure; the water level in a well is the same as the water table outside the well.
Sole-Source Aquifer: An aquifer that supplies 50-percent or more of the drinking water of an area.
Aquifer:an underground layer of spongy rock, gravel, or sand in which water collects. Arid:a climate in which almost no rain or snow falls.
semi-confined aquifer. An aquifer that is partially confined by a soil layer (or layers) of low permeability through which recharge and discharge can occur.
sensor.
It authorizes EPA to set drinking water standards (including maximum contaminant levels), and provides special protection to sole source aquifers.
Groundwater is cheaper to treat, but aquifers usually have limited output and can take thousands of years to recharge.
Hydrological drought"This type of drought occurs when water reserves in aquifers, lakes and reservoirs fall below an established statistical average.
Almost one gallon of that water is below ground in aquifers.
Three-fourths of this is polluted or otherwise unavailable to us.
About four tablespoons of that is in surface water such as rivers and lakes.
Water and ice on or near the surface of the Earth. Includes water vapour in clouds; ice caps and glaciers; and water in the oceans, rivers, lakes and aquifers. Processes in the hydrosphere include the flow of rivers, evaporation and rain.
Biosphere-> ...
Even though rains continuously replenish the clean water supply, we have polluted the rivers, lakes and streams making them unsuitable for drinking or agriculture. Further, we are rapidly draining the underground aquifers which took eons to fill.
aquifer. a water-bearing layer of permeable rock, sand, or gravel.
argillotrophy refers to systems in which the main source of nutrition for the animals is in clayey particles and their attached organic matter ...
 See also: Water, Soil, Waste, Condition, Table
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