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- 34 - <br />columns was compacted to near 50% relative density. The remaining <br />columns were placed near the minimum energy state at a relative <br />density near zero. The amount of water draining from the columns was <br />measured and the . moisture content decrease of the <br />material was plotted <br />against time. The results of the testing are discussed in the <br />Physical Property Data Obtained section below. <br />PHYSICAL PROPERTY DATA OBTAINED <br />Plant Site: Subsoil conditions at the plant site are somewhat <br />erratic. Generally, our test <br />Alts encountered a layer of topsoil <br />approximately 1 foot thick or man -made fill to depths of 3 feet below <br />the ground surface. The topsoil and fill was underlain by natural <br />sandy clay deposits containing pockets of granular soils ranging in <br />size from sand to boulders. <br />The logs of the exploratory test pits <br />excavated on the site are shown on Figs. 9 and 10. A more complete <br />description of eadz subsurface stratum follows: <br />(1) Fill: Generally, the area northwest of Test Pits 3 and 4 has <br />been built up with development rock from the mining process. <br />The fill material encountered in this area was a mixture of <br />sand, gravel, silt and clay. The material is predominantly <br />composed of angular sandstone fragments and, based on the <br />resistance to excavation, appears to be dense. The exact <br />composition of the fill material and its lateral and vertical <br />extent was not determined from the results of this <br />investigation. We understand that this area was constructed <br />placing the Bevel by rode in relatively uniform lifts and <br />repeatedly rolling the material with a front end loader. <br />