Exercise 17

Calculate the drawdown at the observation well in Figure 55 and Figure 57 given the following assumptions:

the system behaves in a nearly linear manner even after pumping, i.e., drawdown is small relative to aquifer thickness
[latex]r_{boundary} = [/latex] 250 m
[latex]r_{pump\ well\ to\ observation\ well} = [/latex] 200 m
[latex]Q = [/latex] 1,000 m³/d
[latex]K = [/latex] 2.0×10^-5 m/s
[latex]b = [/latex] 20 m
[latex]S = [/latex] 0.0001
[latex]t = [/latex] 10 years

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