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zo <br />where: <br />K is saturated hydraulic conductivity (cm/min) <br />Q is discharge through the core sample (cm3/min) <br />L is length of core sample (cm) <br />dh is total drop in hydraulic head from the top of the water surface <br />to the bottom of the core sample (cm) <br />A is cross sectional area of the core sample (cm2). <br />The temperature of the water was recorded during each run and the <br />calculated K was adjusted to account for the difference in the viscosity <br />of water between the actual recorded water temperature and standard <br />temperature, 25oC (Weast, 1980). <br />Moisture Content at Saturation 1/3 Bar 15 Bars <br />The saturated core samples were weighed to determine moisture content <br />at saturation immediately after testing saturated hydraulic conductivity. <br />The saturated cores were then placed on a ceramic plate with rubher <br />backing (Richards,l965) in a pressure chamber at 1/3 bar pressure. The <br />water drained by the ceramic plate was collected in a graduated cylinder <br />outside the pressure chamber. When the water level in the graduated <br />cylinder was constant, the system had reached an equilibrium and the <br />core samples were taken out of the pressure chamber and weighed to deter- <br />mine moisture content at 1/3 bar pressure. The core samples with <br />moisture retained at 1/3 bar were put on another ceramic plate in <br />another pressure chamber with 15 bars pressure, and when the system had <br />once again reached an equilibrium (constant water level in the graduated <br />cylinder) the core samples were taken out of the pressure chamber and <br />