I just need help with setting up the equation and solving for it. As ststed belo

Question

I just need help with setting up the equation and solving for it. As ststed below, the answer is H.

2.A well is pumped at a rate of 600 gal min and the following data is measured after 48 hours at three observation wells: r, ft Drawdown, ft 40.1 3.15 95.1 2.24 144.7 1.71 What is the Transmissivity of the Aquifer in m /min 0.09 m 1min b. between 0.09 m2/min and 0.14 m /min between 0.14 m /min and 0.19 m /min d between 0.19 m /min and 0.24 m /min e between 0.24 m /min and 0.29 m /min f between 0.29 m2/min and 0.34 m /min g. between 0.34 m /min and 0.39 m /min h. 0.39 m 1min ANSWER: H

Explanation / Answer

Considering that the given aquifer is a completely confined aquifer ,then the given question can be solved using Jacob straight line distance drawdown method.

In this method the drawdown is plotted on arithmatic scale as a function of distance of pumping well on the log scale.

Aquifer Transitivity(T) is given as,

T= 2.3×Q/(2[h- h)

Where,Q= pumping rate in m³/s

(h-h)= slope of the straight line in the distance(log scale :x axis) drawdown(along arithmatic scale: y axis)(in meters)

So,you'll require a semi log paper to solve the question.

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