2011-12-28_REVISION - C1981012 (2)

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New Elk Coal Company Permit C- 1981 -012 RDA #1 Expansion Geotech Work MR -99 provides for a geotechnical field investigation and laboratory testing required to verify field subsurface conditions and to obtain geotechnical data necessary for the design of the coal mine waste pile. Field investigations will include three borings, and 6 test pits. A rubber -tired drill rig and rubber tired backhoe will be used to advance the borings and excavate the test pits. A temporary light use road from the existing highway will provide access to the site. The light use roads will be constructed with a small track dozer. Light use roads will only be wide enough to achieve safe access of the drill rig and backhoe. Test pits will be excavated with a rubber- tired backhoe to depths of approximately 8 to 10 feet or to bedrock/refusal. The 6 inch diameter borings will be drilled to depths of 50 to 70 feet. One boring will be converted to a 2" diameter monitoring well. Silt fences or straw wattles will be used as necessary to prevent erosion during the site access and field investigation program. The drill holes, test pits and temporary light use road are shown on Map 11 Sheet 3 New Elk Mine Site Plan, East Portal Facilities. This document estimates the bonding required to seal the drill holes, fill in the test pits, regrade the road and seed and much the area. In summary, the estimate is: MR -99 RDA #1 Expansion Geotechnical Total direct cost $3,496 Job super-vision hours 12 Job supervision cost $703 Profit, insurance, bond $457 Contract $4,656 Engineering $198 Reclamation management $233 Estimated bond $5,087 MR -99 Exhibit 28- Page 215 Revised 12/28/11