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Unformatted text preview: 20 C? 2 3. (3 points) The stratification of an aquifer is shown below. Calculate the equivalent horizontal and vertical hydraulic conductivities. What is the degree of anisotropy? 4. (6 points) Using the tabulated results of a grain size distribution test on a field sample, perform the following tasks: (A) Plot a grain size distribution curve for this sample (hint: you need to get the grain size for each sieve number from the lecture note) (B) Is this a wellsorted or poorlysorted sample? (poorlysorted materials have a uniformity coefficient > 6) U.S. Standard Sieve Number Mass retained (g) 3/8 49.95 4 26.70 8 25.29 16 50.58 30 72.57 40 25.50 100 33.60 200 7.53 Pan (passes through #200 sieve) 8.28...
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 Fall '09
 maxhu
 Hydrogeology

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