For steady flow to a fully penetrating well in a confined acquifer, the drawdowns at radial distances of r₁ and r₂ from the well have been measured as s₁ and s₂ respectively, for a pumping rate of Q. The transmissivity of the aquifer is equal to

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Accepted Answer

$\frac{Q}{2\pi}\frac{In\frac{r_2}{r_1}}{(s_1-s_2)}$

For steady flow to a fully penetrating well in a confined acquifer, the drawdowns at radial distances of r1 and r2 from the well have been measured as s1 and s2 respectively, for a pumping rate of Q. The transmissivity of the aquifer is equal to