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TEST #2: MONITORING WELL MW-6 <br /> I = depth of well - depth to water = 68.50 ft - 58.91 ft = 9.59 ft <br /> ' d = oft <br />' 0 = 35% (porosity of filter pack is assumed to be same as aquifer) <br /> m = 50 ft (assumed; no boring has penetrated more than 20 feet of aquifer) <br /> ' rw = 4" = .333ft <br />' rc2 = (1 in)2 x (1-.35) + .35(4 in)2 = .65 int + .35(16 in) = 5.6 int = .466 ft, <br /> A = 2.3 from Figure 23.1 of Dawson and Istok (1991) <br /> 1 ' <br /> B = .35 from Figure 23.1 of Dawson and Istok (1991) <br /> ' tL = .54 minutes from recovery curve MW-6 A <br /> or 1.2 minutes from recovery curve MW-6 B <br /> In(R/r,,) = 1.1 + 2.13 + .35 x In(50 ft - 9.59_ <br /> In(9.59 ft/.333 ft) (9.59 ft - 0 ft)/.333 ft <br /> ' 1.11 + 2.3 + .35(3.69) -1 <br /> 3.36 28.79 = 1.327 + .1251-I = 2.21 <br />' K = .466 ft2 x 2.21 = 1.03 ft2 = .0994 ft/min = 143.2 da <br /> 2(9.59 ft - 0 ft).54 min 10.35 ft-min <br /> or K = .466 ft' x 2.21 -= 1.03 ftZ = .0447 ft/min = 64.4 ft/day <br /> 2(9.59 ft - 0 ft)1.2 min 23.01 ft-min <br /> Oenlopd A.&S.-,I- <br /> A A PARA-26-941 47 <br /> i <br />