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West Elk Mine <br /> <br /> <br />2.04-127 Rev. 01/94- PR05, 08/94- TR71, 06/95- PR06, 03/06- PR10;02/22- MR460 <br /> <br /> <br />Figure 15 SCS Soil Mapping for Section 16, T13S, R90W <br /> <br />The West Elk Mine site soil survey map was prepared during a two-day field effort. During this <br />period, the entire survey area was thoroughly traversed and transected to determine the location of <br />mapping unit boundaries. Some 12 observation holes were augered to verify and determine the soil <br />series present. In addition many surface horizon checks were made during the survey. Aerial <br />photographs were used to prepare the soil survey map. <br /> <br />Although, included in the original soil surveys for the mine site, a more detailed baseline soil <br />investigation of the Sylvester Gulch Facilities Area was completed in July and October of 1996. A more <br />detailed soil investigation was needed as the original survey did not anticipate surface disturbance. This <br />baseline soils investigation is provided in Exhibit 27A.