Verizon 10:30 AM Geol-463 Final Review Session.... 3 of 4 solery. Final Revien P

Question

Verizon 10:30 AM Geol-463 Final Review Session.... 3 of 4 solery. Final Revien Preblems Darcy Column Problem (Consider Lab 2) Your first job as a hydrogeologist is to head-up the lab department and validate sediment samples. You are charged with setting up a Darcy Column to determine hydraulic conductivity. You fill the cylinder with sediments and determine that you can pass 0.25 gallon through the sediment every 15 minutes Water Source, Constant Head Manometers Column 3-inch inside dameter 8 cm 2.5 ft Water Outflow a) Calculate the hydraulic conductivity in inches/minute. With the chart below, what ithologyls) might this sediment SILT. LOESS (from Heath, 1983) CLEAN SAND GLACIAL TILL Feetlday Confined Aquifer, Non-equilibrium Radial Flow Open With Print

Explanation / Answer

A)

Hydrolic comductivity K = Q/ iA

Where Q flow rate

i is hydrolic gradient

A is flow cross secrion area

Here , flow rate is 0.25 gallon per 15 min

So Q = 0.016 gallon/ min which is 1.009 cm/ sec

i = 3

A= is 8 cm

So now equation K = Q/ iA

= 1.009/ 3.14*8

K = 0.040 cm/sec

B)

the arrangement of the rock layers and their lithology the deposition of the sedimentary environment is representing the fluvial or stream sedimental environment

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