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Table 1— Summary of Earthworks Material Specifications <br />U.S. Standard <br />STRUCTURAL FILL <br />Percent Passing <br />"'wil M, <br />Sieve Size <br />by Dry Weight <br />24 — inch <br />100 <br />No. 200 <br />0-25 <br />Plasticity Index: <br />30 maximum <br />SOIL LINER FILL <br />U.S. Standard <br />Sieve Size <br />2 -inch <br />No. 200 <br />Plasticity Index: <br />Hydraulic Conductivity <br />Percent Passing <br />by Dry Weight <br />100 <br />15 -50 <br />10 minimum <br />1 X 10-6 cm /s maximum <br />DRAIN COVER FILL <br />U.S. Standard I Percent Passing <br />Sieve Size <br />by Dry Weight <br />1' /2 -inch <br />100 <br />3/4 -inch <br />70-100 <br />No. 4 <br />5-50 <br />No. 200 <br />0-8 <br />Plasticity Index: <br />0 <br />