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1 <br /> TEST #1: MONITORING WELL MW4 <br /> 1 = depth of well - depth to water = 68.88 ft - 59.83 ft = 9.03 ft <br /> ' d = oft <br /> 0 = 35% (porosity of filter pack is assumed to be the same as aquifer) <br /> m = 50 ft (assumed; no boring has penetrated more than 20 feet of aquifer) <br /> ' rw = 4" = .333 ft <br /> ' rc2 = (1 in)' x (1-.35) + .35(4 in)2 = .65 int + .35(16 int) = 5.6 in' = .466 ft2 <br /> A = 2.12 from Figure 23.1 of Dawson and Istok (1991) <br /> B = .3 from Figure 23.1 of Dawson and Istok (1991) <br /> ' tL = 3.25 minutes from recovery curve MW-4 A <br /> or 2.66 minutes from recovery curve MW-4 B <br /> ln(R/r,,) = 1.1 + 2.12 + .3_x ln(50 ft - 9.03 ft) -1 <br /> ln(9.03 ft/.333 ft) (9.03 ft - 0 ft)/.333 ft = <br /> 1_1 + 2.12 + .3(3.71) -1 <br /> 3.3 27.11 = {.333 + .1191-1 = 2.21 <br /> K = .466 ft2 x 2.21 = 1.03 ft2 = .0175 ft/min = 25.27 fWay <br /> 2(9.03 ft - 0 ft)3.25 min 58.69 ft-min <br /> or K = .466 ft2 x 2.21 = 1.03 ft2 = .0099 ft/min = 14.38 ft/day <br /> 2(9.03 ft - 0 ft)2.66 min 48.03 ft-min <br /> 1 <br /> 1 <br /> ��l Audit Se� <br /> A&A PARA-26-"A.47 <br />