Question: 4 . For the time - drawdown data listed on the right for a confined aquifer, calculate T and S using Jacob s approximation. After

4 .

For the time

-

drawdown data listed on the right for a confined aquifer, calculate T and S using Jacob

s approximation. After computing T and S

,

check to see that the basic assumption of this approximation is satisfied. For the values of T and S that you computed, after how many minutes of pumping would Jacob

s approximation be valid? The discharge is Q

= 1500

gpm and the radius r

= 300

.

4 . For the time - drawdown data listed on the

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