The following data are from a pumping test where a well was pumped at a rate of 200 gal per minute. Drawdown as shown was measured in an observation well 250 ft away from the pumped well. The...

The following data are from a pumping test where a well was pumped at a rate of 200 gal per minute. Drawdown as shown was measured in an observation well 250 ft away from the pumped well. The geologist’s log of the well is as follows:

A steel well casing was cemented to a depth of 182 ft and the well was extended as an open boring past that point.

(A) Plot the time-drawdown data on 3
 5 cycle logarithmic paper. Use the The is type curve to find the aquifer transmissivity and storativity. Compute the average hydraulic conductivity.

(B) Replot the data on four-cycle semilogarithmic paper. Use the Cooper-Jacob straight-line method to find the aquifer transmissivity and storativity.