A $150 \mathrm{~mm}$ diameter well is driven fully in a confined aquifer of thickness $12 \mathrm{~m}$. When pumping is done at a constant rate of $150 \mathrm{~L} \min ^{-1}$ for $10 \mathrm{~h}$, the steady-state draw-downs are found to be $2.20 \mathrm{~m}$ and $0.02 \mathrm{~m}$ at distances of $14 \mathrm{~m}$ and $50 \mathrm{~m}$, respectively from the centre of the well. The hydraulic conductivity of the aquifer in $\mathrm{m}$ day ${ }^{-1}$ is_________________

A $150 \mathrm{~mm}$ diameter well is driven fully in a confined aquifer of thickness $12 \mathrm{~m}$. When pumping is done at a constant rate of $150 \mathrm{~L} \min ^{-1}$ for $10 \mathrm{~h}$, the steady-state draw-downs are found to be $2.20 \mathrm{~m}$ and $0.02 \mathrm{~m}$ at distances of $14 \mathrm{~m}$ and $50 \mathrm{~m}$, respectively from the centre of the well. The hydraulic conductivity of the aquifer in $\mathrm{m}$ day ${ }^{-1}$ is_________________

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