14 Groundwater Fundamentals 5

14 Groundwater Fundamentals 5 - Flow High Pressure Confined...

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Low Permeability Geologic or Soil material Water High Permeability Unconfined Aquifer Saturated Zone Groundwater table Saturated Zone thickness dependent on rainfall
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Unconfined or Surficial Aquifer Impermeable
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Confined Aquifers A generally inclined , water-bearing formation located between impermeable layers of clay, rock, or shale. Impermeable, confining layer Impermeable confining layer Water Bearing Unit
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Confining units (aquicludes) Water-bearing unit (consolidated or unconsolidated) Water-bearing unit is confined between two layers of material that are not permeable to water (confining units).
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Confined Flow and Artesian Wells Water-bearing unit Impermeable material Recharge
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Unformatted text preview: Flow High Pressure Confined and Unconfined impermeable impermeable Recharge Water-bearing unit Water-bearing unit Recharge Unconfined aquifer (surficial aquifer) Open to the surface, but confined at greater depth by low-permeability material Recharge is generally by rainfall and surface water bodies Confined aquifer Water-bearing unit is confined between two layers of material that are not permeable to water (confining units). Recharge is in areas where the upper confining unit is thin or absent Water-bearing units: sands, gravel, silts, clays, porous or fractured rock Floridas Principal Aquifer is Consolidated and Confined...
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This note was uploaded on 02/10/2011 for the course SWS 2007 taught by Professor bonczek during the Fall '09 term at University of Florida.

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14 Groundwater Fundamentals 5 - Flow High Pressure Confined...

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