The data from a falling head test is shown. Diameter of standpipe: 5 cm. Initial Head: 92.68 cm. Duration of test: 19 min. Length of soil sample: 30.64 cm. Diameter of permeameter: 43 cm. If the soil permeability is 0.008 cm/min, determine the final head (in cm.) of the permeability test. Answer: 64.22

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Laboratory Determination of Hydraulic Conductivity

Hydraulic conductivity is the measure of flowability of water inside the soil in the presence of a hydraulic gradient. The hydraulic gradient is defined as the difference in the water heads in the soil, which induces a water motion. In simple terms, a hydraulic gradient is the presence of a potential that induces a flow of water.