Problem Statement: The geologic material in an aquifer below two houses is medium sand. House A has a septic system located 180 m upgradient from a drinking water well for house B. The head at house A is measured as 5 m and the head at house B is measured as 3.5 m. What is the linear velocity of the water flowing through the column? Use the values provided in the table above to solve the problem. x 106 m/s. Type your answer with 3 SF. The linear velocity is
Problem Statement: The geologic material in an aquifer below two houses is medium sand. House A has a septic system located 180 m upgradient from a drinking water well for house B. The head at house A is measured as 5 m and the head at house B is measured as 3.5 m. What is the linear velocity of the water flowing through the column? Use the values provided in the table above to solve the problem. x 106 m/s. Type your answer with 3 SF. The linear velocity is
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:D
Table/7.23
Representative Values for Hydraulic Conductivity and Porosity for Soils and Other
Geologic Materials (data from Todd, 1980).
Material
Coarse gravel
Medium gravel
Fine gravel
Coarse sand
Medium sand
Find sand
Silt
Clay
Fine-grained sandstone
Medium-grained sandstone
Limestone
Particle Size (mm)
16-32
8-16
4-8
0.5-1
0.25-0.5
0.125-0.25
0.004-0.062
<0.004
Not applicable
Not applicable
Not applicable
Hydraulic Conductivity (m/day)
150
270
450
45
12
2.5
0.08
0.0002
0.2
3.1
0.94
Porosity
0.28
0.32
0.34
0.39
0.39
0.43
0.46
0.42
0.33
0.37
0.30
Transcribed Image Text:Problem Statement: The geologic material in an aquifer below two houses is medium sand. House A has a
septic system located 180 m upgradient from a drinking water well for house B. The head at house A is
measured as 5 m and the head at house B is measured as 3.5 m. What is the linear velocity of the water
flowing through the column? Use the values provided in the table above to solve the problem.
x 106 m/s. Type your answer with 3 SF.
The linear velocity is
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