Find the hydraulic conductivity of the aquifer in units of ft/day and find the radius of influence for this pumping well in ft. A single well exists in an ideal unconfined aquifer. The pumping well has a flow rate of 200 gpm and an effective well radius of 0.60 ft. An observation well was placed 85 ftaway from the centerline of the pumping well. The pumping well has been on long enough for equilibrium to be achieved, and drawdowns at the two wells were as shownin the figure below. The sketch is not to scale.140ftElev 2520 ftElev 2452 ft85ftElev 2260 ftElev 2526 ft100 ft

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Answered: Find the hydraulic conductivity of the…

Find the hydraulic conductivity of the aquifer in units of ft/day and find the radius of influence for this pumping well in ft.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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h₂ h2-h1 h₂ Q b=h Unconfined aquifer Ⓒ Steady flow h1 = 80ft h2 = 100ft r1 - 800 ft r2 = 1000 [L Pumping rate = 300 gpm Estimate hydraulic conductivity of the aquifer 1 gpm = 192.5 ft3/day
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10 m thick confined aquifer gives the steady state discharge of 0.03 m³/s through the well of 50 cm radius. Due to pumping, the height of water in the well is dropped from 15 m to 10 m and the 939 radius of influence is obtained as 500 m. What is the coefficient of permeability (mm/s)?