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PREDICTED DRAWDOWN -STROH PIT PUMP RATE DETERMINATION <br />Input Data for prediction of drawdown <br />K Equation used in prediction <br />Hydraulic conductivity, K, ft/day 700 S _ Q �W �u �� u _ r zS <br />Aquifer Thickness, b, ft 20 0.01 0.1 1 10 100 1000 <br />Storage Coefficient, S 0.000512 4 z T 4Tt <br />Pumping Rate, GPM 650 S <br />Distance from well, ft 0:1' s is drawdown, W (u) is the well <br />0.000001 0.00001 0.0001 0.001 0.01 0.1 1 <br />18 <br />16 <br />PREDICTED DRAWDOWN <br />H 14 <br />w <br />u. 12 <br />K <br />Z 10 <br />O 8 <br />c <br />6 <br />C 4 <br />2 <br />0 <br />0:00:01 0:00:09 0:01:26 0:14:24 2:24:00 24:00:00 <br />TIME IN HOUR:MINUTE:SECOND <br />18 <br />16 <br />14 <br />w <br />w <br />LL 12 <br />z <br />z 10 <br />3 <br />O 8 <br />0 <br />3 <br />q 6 <br />0 <br />4 <br />2 <br />0 <br />0:00:00 3:00:00 6:00:00 9:00:00 12:00:00 15:00:00 18:00:00 21:00:00 24:00:00 <br />TIME IN HOUR:MINUTE:SECOND <br />