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aY <br /> FM suggested by the well and boring logs, and by field observations. <br /> The top of zone 3 is considerably siltier and less permeable than <br /> its base. The ovarail rain aize sortie and <br /> g r g, permeability of <br /> zone 3 also increases toward the southeast. Samples from the <br /> base Of zone 3 in walls Mw-30 and NW-31 have extremely high <br /> permeabilities, as high as 41 Darcies. <br /> a <br /> Four samples of zone 4 material were submitted for laboratory { <br /> s � ' <br /> analysis. All four were clays by sieve analysis. Vertical <br /> permeabilities were measured on three samples. Two samples had <br /> permeabilities lower than 10-5 Darcy, the lower limit of the <br /> laboratory technique used. The other had only 1.89 milliDarcy <br /> permeability. It is clear from this data that zone 4 is an <br /> Ueffective aquitard. <br /> Pumping and slug tests were conducted to determine the <br /> s, hydraulic properties of the zones 3 aquifer. The tests were <br /> is conducted during the week of February 8th, 1988. Retails Of the <br /> testing methods, the draw down and recovery curves for the tests, <br /> y z and the interpretations of the test data are summarized in <br /> 29 <br /> Appendix B. <br /> The zone 3 pumping-test was run at a rate of 4.5 GPM, until the <br /> pumped well..:dewatered after 18 hours. Drawdown was seen in all <br /> ' wells observed during the test. All observed goints recovered to <br /> 95&'3f initial static conditions within 3 hours after pumping <br /> ff - stopped..-.- Calculated-transmissivities-ranged--from 5,165 to 7,425 ' - -T - <br /> gallons per foot per day. .(gpf/day) . Calculated storage . <br /> coefficients ranged from 0.0064 to 0.014. . Exceltech estimated an t. <br /> 12 <br />