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Western Mining District 18-Left Shaft Site Baseline Soil Investigation <br />0 <br />OVERVIEW <br />An upland soil investigation was conducted north of a minor tributary to Fish Creek <br />and immediately adjacent to and west of Routt County Road 27 for the Peabody's <br />Twentymile Coal Company (TMCC) in Routt County, Colorado. This investigation <br />will be used to support TMCC's proposed construction of Western Mining District 18- <br />Left vent shaft facility and access road to this facility. This soil investigation complies <br />with the soil requirements contained in Section 2.04.9 of the Regulations of the <br />Colorado Division of Reclamation, Mining and Safety (DRMS) for Coal Mining. Soil <br />descriptions were recorded from 6 continuous soil cores located within the proposed 54 <br />acre vent shaft facility study area. The soil cores were located in Township 5 North, <br />Range 87 West, Section 23 (Sheet 1). The soil investigation was conducted on <br />November 11 and 12, 2008 by Kenneth E. Carlson, a Certified Professional Soil Scientist <br />(#2824) with Habitat Management, Inc. <br />SOIL CORE LOCATIONS <br />Six continuous soil cores were located and excavated with a Giddings drill rig and with <br />within the land block proposed for the proposed vent shaft pad (Sheet 1). These upland <br />soil cores were excavated up to a depth of 60 inches, a lithic contact or parent material <br />and did not encounter any groundwater. <br />SOIL DESCRIPTIONS <br />Each soil core was described by horizon following accepted United States Department <br />of Agriculture Natural Resource Conservation Service (NRCS) soil survey procedures <br />for the following parameters: horizon depth; field texture; Munsell color (matrix and <br />mottles); root presence and depth; soil structure; and effervescence. Additional soil <br />descriptions were recorded as needed. Photographs were taken of each soil core after <br />characterization. Major soil horizons are defined for each soil core in the photographs. <br />Field soil descriptions for each soil core are contained Appendix 1. Photographs of the <br />soil cores are contained in Appendix 2. NRCS soil series descriptions of the potentially <br />affected soils are contained in Appendix 3. <br />E <br />Habitat Management, Inc. 1 01/12/2009