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' 4 ' <br />b) Geotechnical logging of holes G1 and G3 end the selection of core samples for purposes <br />of laboratory testing. These samples were seated to preserve the molstuns content oI the <br />' materials to be tested. The Indlvldual logs are summarized In Appendix II. <br />c) PermeabUity measurements within the Indlvldual loll units. Piezometers placed In holes G2 <br />' and G3 enabled permeability estimates to be matle for the allwlum. A stand pipe <br />plezometer was sealed within the Santa Fe formation within hole Gt thereby enabling <br />estlrnates of permeability to be recorded. Appendix II shows the Installation procedure <br />' employed for the Individual plezometers. The falling head test was employed to estlritate <br />the permeability for the Indlvldual Boll units. <br /> d) Laboratory testing on the eollan and fanglomerate materials that comprise the Santa Fe <br /> unit. This consisted of: <br />t 1) shear strength estimates for the eollan units. Trlaxial testing an thH eollan Sente Fe <br /> was performed In an undralned satureted state with pore pressures being , <br />' recorded. This was considered [o best reflect field conditions. <br /> The eollan material was the weakest and most abundant Unit observed wfthlh the <br />' Santa Fe unit (Hole Gt), <br />' 2) permeability measurements. <br /> 3) dotarmining the moisture content, elakablll[y and size distribution <br />' RIA <br />MAT <br />ROPERTIES <br /> 3.0 <br />E <br />L P <br />' Figure 2 shows drill section 2,046,500E and the Indivdual soil units observed. The r'.dll logs ahe <br />reproduced In Appendix II and summarized In Table 1. <br />' Table 1: Ge0technlcel Loa Summary- Hoie Gt <br />' Material Depth Observation <br /> Alluvium 0 - 47 ft. Conslela of unconsoildated sands and gravels wflh Clay. <br /> Poor dnll recovery. Loss of drill water circulation. <br /> Santa Fe 47 - 155 ft. Consists primarily of eollan sands. I[ Is classified a9 e <br /> silty send and Is weakly consolidated. <br />' Isdeted zones of fanglomemte are found. It le a mare <br />cohealve unit consisting of silty sand and gravel with <br /> celcfte. <br /> <br /> <br />