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Site Conditions: The proposed Bleeder Shaft Pad is located approximately 7100 feet west of the existing <br />road and pond, which is situated west of County Road #179 within the Twentymile Coal-Foidel Creek Mine <br />in Routt County, Colorado. The site was vacant at the time of ow investigation. The site was vegetated <br />' with grasses, weeds and sagebrush. <br />The topography of the site is vaziable and generally consists of rolling hills. The topography at the Bleeder <br />Shaft Pad slopes gently to moderately down to the west-southwest on the order of 3 to 10 percent. <br />Subsurface Conditions: To investigate the subsurface conditions at the site, two test holes were advanced <br />at the shaft pad site and ten test holes were advanced along the proposed access road on November 21 and <br />24, 2003 with anall-terrain drill rig utilizing 4-inch diameter continuous flight power augers. The <br />approximate test hole locations are shown in Figure #2. <br />The subsurface conditions encountered were variable and generally consisted of a layer of topsoil and <br />organics overlying natural sands-silts, clays, sands-clays and/or sandstone bedrock to the maximum depth <br />investigated, 18 feet. Graphic logs of the exploratory test holes aze presented in Figures #3 and #4, and the <br />associated Legend and Notes are presented in Figure #5. <br />A layer of natural topsoil and organics was encountered at the ground surface in all of the test holes and was <br />approximately 6 to 12 inches in thickness. Natural sands-silts were encountered below the topsoil and <br />• organics in test holes 1 through 8. The sands-silts extended to depths of 2'/~ to 7 feet. The sands-silts <br />consisted of highly weathered sandstone bedrock materials, which were clayey to very clayey with <br />occasional clay lenses, fine to medium grained, low to non-plastic, medium dense to dense, dry to slightly <br />moist and light brown to brown in color. Samples of the sands-silts classified as SM to CL-ML soils in <br />accordance with the Unified Soil Classification System. Natural clays were encountered below the layer of <br />narural topsoil and organics in test hole 12 and below [he sands-silts in test hole 2. The clays extended to <br />depths of 10 and 5 feet. The narural clays were sandy, low to moderately plastic, stiff, slightly moist and <br />light brown to brown in color. Samples of the natural clays classified as CL soils in accordance with the <br />United Soil Classification System. Natural sands-clays were encountered below the topsoil and organics in <br />test holes 9, 10 and 11. The sands-clays extended to depths of 8 to 10 feet. The sands-clays were silty to <br />very silty, fine-grained, very low to low plastic, loose to medium dense, dry to slightly moist and dazk <br />brown to brown in color. A sample of the sands-clays classified as a CL soil in accordance with the Unified <br />Soil Classification System. Natural sands-silts were encountered below the narural clays in test hole 2, at a <br />depth of 10 feet, and below the sands-clays in test hole 9, at a depth of 8 feet. Sandstone bedrock was <br />encountered below the natural sands-silts in test holes 1 through 8, and extended to the maximum depths <br />investigated. The sandstone bedrock materials were silty, fine to medium grained, hard to very hard, very <br />low to non-plastic, slightly moist and light brown to tan in color. Samples of the sandstone bedrock <br />classified as SM soils in accordance with [he Unified Soil Classification System. <br />Swell-consolidation tests conducted on samples of the natural sand-sins and natural clays indicate that the <br />• materials tested will a tow to moderate degree of consolidation when wetted under a constant load. The <br />swell-consolidation test results are shown in Figures #6 and #7, and all of the other laboratory test results <br />are summarized in Table 1. <br />Job Number: 03-5838 NWCC, Inc. Page 2 <br />