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However, the semi-log plots of the recovery data from both 700 and 704 produced <br />straight lines. The calculated "transmissivities" from the recovery plots for 700 and <br />704 are 2,000 gallons per day per foot (gpd/ft) and 1,300 gpd/ft, respectively (Table <br />31• Due to the nature of the testing these calculated values should not be considered <br />true transmissivities. Rather, the calculated value is a function of the average <br />hydraulic conductivity and the length of the hole. The calculated hydraulic <br />conductivities range from 0.1 to 0.2 ft/day. The calculated hydraulic conductivities <br />are expected to be of the correct order of magnitude. <br />Both the semi-log drawdown and recovery plots for the second test (hole 781) <br />produced straight lines. The calculated hydraulic conductivities are on the order of <br />0.2 ft/day. <br />The geometric mean of the calculated hydraulic conductivities is 0.15 ft/day. <br />However, the rock in the vicinity of the flow tests exhibits more fracture permeability <br />than is typical for the American Tunnel. Therefore, this calculated hydraulic <br />conductivity is expected to be considerably higher than the general average for <br />fractured rocks in the area. <br />sunny\wp\traci\2251\Mar1993.Rpt 32 <br />H`a! SIR1011 HYDRO-SERRCH <br />