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Falling Head Permeability <br /> ASTM D 5084 <br /> Cooper Testing Lab, Inc <br />' Job No 255-008a Boring B-6 Date 09/18/97 <br /> Client Geoenvironmental Sample By DC <br />' Project Dens Auto Depth 65' <br /> Soil gray silty CLAY w/sand <br />' Sample Pressures Max Hydraulic <br /> Cell 50 psi Bot Cap 45 psi Top Cap 45 psi Gradient 15 <br />' Elapsed Time (min) Head, (cm) Permeability cm/sec <br /> 0 280 Start of Test <br /> 734 92 3 7 x 10E-6 <br />' 0 280 <br /> 129 237 3 2x 10E-6 <br /> 175 221 3 4 x 10E-6 <br /> 0 9833 <br /> 24 9533 3 2 x 10E-6 <br />' 79 8863 3 3 x 10E-6 <br /> 146 81 13 3 2 x 10E-6 <br /> 187 7677 3 2 x 10E-6 <br /> Average Permeability 3 x 10E-6 cm/sec <br /> Sample Data Initial Final <br /> Height, in 250 250 <br /> Diameter, in 1 91 1 92 <br /> Area, in2 287 290 <br /> Volume, in3 716 726 <br /> Total Volume, cc 11738 11889 <br /> Vol of Solids, cc 6793 6793 <br /> Vol of Voids, cc 4945 5096 <br /> Void Ratio 073 075 <br /> Porosity, % 4213 4286 <br /> Saturation, % 9929 9831 <br /> Sp Gravity 280 assumed 280 <br /> Wet Weight, gm 2393 2403 <br /> Dry Weight, gm 1902 1902 <br /> Tare, gm 000 000 <br /> Moisture, % 258 263 <br /> Dry Density, pcf 101 1 998 <br /> . Remarks <br />