1

FIG. 9.8.3 Drawdown versus time plot.

Distance from pumped well, r (log scale) (ft or m)

FIG. 9.8.4 Drawdown versus distance plot. (Reprinted from R.S. Gupta, 1989, Hydrology and hydraulic systems, Prentice-Hall, Inc.)

Distance from pumped well, r (log scale) (ft or m)

FIG. 9.8.4 Drawdown versus distance plot. (Reprinted from R.S. Gupta, 1989, Hydrology and hydraulic systems, Prentice-Hall, Inc.)

FIG. 9.8.5 Plot of drawdown versus combined time-distance. (Reprinted from R.S. Gupta, 1989, Hydrology and hydraulic systems, Prentice-Hall, Inc.)

FIG. 9.8.5 Plot of drawdown versus combined time-distance. (Reprinted from R.S. Gupta, 1989, Hydrology and hydraulic systems, Prentice-Hall, Inc.)

DRAWDOWN-COMBINED-TIME-DISTANCE ANALYSIS (s VERSUS logrVt)

The drawdown measurements in many wells at various times are plotted as shown in Figure 9.8.5. Similarly as before

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