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PALLING HEAD PERMEABILITY CALCULATION <br />PROJECT: Collom Haut Road & Pipeline <br />JOB NUMBER 17-10686 <br />DATE: 6/12/2017 <br />PERM NO.1 <br />MATERIAL Slightly Sand Clay CL <br />Value Units <br />H 1 = Initial reading <br />101 cm <br />19P <br />0.635 cm2 <br />H 2 = final reading <br />92.9 cm <br />SAMPLE @ 99.4% of Maximum Std. Proctor Density & 1.6% Above Optimum Moisture <br />k = 2.303 * a*UA*t (log h1/h2) <br />Content <br />Input parameters <br />Value Units <br />H 1 = Initial reading <br />101 cm <br />a = area of standpipe <br />0.635 cm2 <br />H 2 = final reading <br />92.9 cm <br />A = Area of sample brass liner <br />19.17 cm2 <br />to-hl/h2 <br />0.03631 <br />L = length of sample <br />3.38 inches <br />t = elapsed time <br />1112400 seconds <br />8.5725 cm <br />k =permeability <br />2.13E-08 cm/sec <br />