4. A permeability pumping test was carried out in a confined aquifer with the piezometric level before pumping is 2.5m below the ground surface. The aquiclude (Impermeable layer) has a thickness of 5.7m measured from the ground surface and the confined aquifer is 7.6m deep until it reaches the aquiclude (impermeable layer) at the bottom. At a steady pumping rate of 15.6 the drawdown in the observation well were hr respectively equal to 1.62m and 0.47m. The distance of the observation wells from the center of the test well are 20m and 35m respectively. a.) Compute the depth of water at the farthest observation well b.) Compute the coefficient of permeability in m/s 2015
4. A permeability pumping test was carried out in a confined aquifer with the piezometric level before pumping is 2.5m below the ground surface. The aquiclude (Impermeable layer) has a thickness of 5.7m measured from the ground surface and the confined aquifer is 7.6m deep until it reaches the aquiclude (impermeable layer) at the bottom. At a steady pumping rate of 15.6 the drawdown in the observation well were hr respectively equal to 1.62m and 0.47m. The distance of the observation wells from the center of the test well are 20m and 35m respectively. a.) Compute the depth of water at the farthest observation well b.) Compute the coefficient of permeability in m/s 2015
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:4. A permeability pumping test was carried out in a confined
aquifer with the piezometric level before pumping is 2.5m
below the ground surface. The aquiclude (Impermeable layer)
has a thickness of 5.7m measured from the ground surface and
the confined aquifer is 7.6m deep until it reaches the aquiclude
(impermeable layer) at the bottom. At a steady pumping rate
of 15.6 the drawdown in the observation well were
respectively equal to 1.62m and 0.47m. The distance of the
observation wells from the center of the test well are 20m and
35m respectively.
mm 3
a.) Compute the depth of water at the farthest observation
well
b.) Compute the coefficient of permeability in m/s
hr
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