A 2 ft diameter well penetrates vertically through a confined aquifer 50 ft thick. When the well is pumped at 500 gpm in 1 day, the drawdown in a well 50 ft away is 10 ft and in another well 100 ft away is 3 ft. The storativity of aquifer is 0.0005. What is the value for transmissivity and drawdown? Note; the piezometric head is 100ft from datum. Combination of thiem & thies equation

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A: Diameter of well = 0.4 m  ⇒Radius of well ,rw = 0.2 m B = 25 m K = 12 m/day R = 1000 m H0 = 80 m Hw…

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Q: 4.2.2 A confined aquifer of 10-m thickness and 16.43 m/day hydraulic conductivity is fully…

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Q: How would I calulate the time it would take for the plume to reach the next well in it's path? Plume…

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Q: A 50 dm diameter well gives a discharge of 0.05 m³/sec. Two observations well were made at a…

A: Given- Diameter of well =50 mm, Discharge Q=0.05 m3/sec. Depth of well H=10 m, Drawdown- s1=3 m at…

Principles of Seepage

In hydrology, when water flows down in a pore or crack of unsaturated soil due to gravity, the deep layer of soil is called seepage. It is the slow movement of water in the soil layer. Seepage is mainly found near hydraulic structures and is responsible for the stability of earthen-type hydraulic structures.