2. An artesian well is pumped at the rate of 25 liters/sec. at observation wells 170m and 340m away the drawdowns noted are 0.83m and 0.67m respectively. The average thickness of the aquifer at the observation wells is 6.5 meters. Compute the coefficient of permeability of the aquifer if the water level was 15 meters before pumping.

2. An artesian well is pumped at the rate of 25 liters/sec. at observation wells 170m and 340m away the drawdowns noted are 0.83m and 0.67m respectively. The average thickness of the aquifer at the observation wells is 6.5 meters. Compute the coefficient of permeability of the aquifer if the water level was 15 meters before pumping.

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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A 30 cm well is pumped at the rate of 1000 ipm. The transmissibility of the aquifer is o.015 m²/s. If the well is located at a distance of 120 m from a stream, what should be the drawdown? (i) In the pumping well- (ii) In an observation well 80 m away from the pumping well on the side opposite to the stream? (iii) In an observation well 80 m away from the pumping well, on a line parallel to the stream?
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An artesian well has a diameter of 10 cm. Under steady state condition, what is the expected discharge (lps) if the drawdown is 2.5 m and the radius of influence is 120 m? The aquifer's hydraulic conductivity and thickness are 75/day and 4 m, respectively. Please do not solve wrong , in unsure allow others to do it .
A fully penetrating well with diameter of 0.25 m is bored into an unconfined aquifer with hydraulic conductivity of 22 m/d and porosity of 0.3. The water table is initially at a height of 55 m above the bottom of the aquifer. After continuous pumping, a steady state drawdown of 12 m is reached. (a) If the pumping rate has no effect on the water table at a distance of 1.2 km from the pumping well, determine the pumping rate. Determine the drawdown in an observation well 600 m away from the pumping well. Determine the travel time from the observation well to the pumping well.