A well in a confined aquifer is pumped at a rate of 833 liters/min (1199.5 m3/day) for a period of over 8 hr. Time-drawdown data for an observation well located 250 m away are given below. The aquifer is 5 m thick. Use the Cooper-Jacob method to find values of T, K, and S for this aquifer.
Time (hr) | Drawdown (m) |
0.050 | 0.091 |
0.083 | 0.214 |
0.133 | 0.397 |
0.200 | 0.640 |
0.333 | 0.976 |
0.400 | 1.100 |
0.500 | 1.250 |
0.630 | 1.430 |
0.780 | 1.560 |
0.830 | 1.620 |
1.000 | 1.740 |
1.170 | 1.860 |
1.333 | 1.920 |
1.500 | 2.040 |
1.670 | 2.130 |
2.170 | 2.290 |
2.670 | 2.530 |
3.333 | 2.590 |
4.333 | 2.810 |
5.333 | 2.960 |
6.333 | 3.110 |
8.333 | 3.320 |
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