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Section 780.18 (b) Continued. Revised 11/20/80 <br />phosphorus levels the Kerr application rates should provide more <br />than adequate plant nutrients for normal plant growth. <br />Maximization and Conservation of the Coal Resource <br />In order to maximize coal recovery, Kerr Coal employs detailed and <br />current engineering designs for planning all surface mining activi- <br />ties. <br />The Kerr North Area is divided into three distinct mining units <br />(Pits 1, 2 and 3) as shown on Map 1, Kerr Mine Area Mine Plan. The <br />mine plan was divided as shown, primarily due to the two major <br />faults located in and parallel with Bush and Williams Draws. These <br />faults are shown on Map 6, Kerr Mine Area Geology. The exact <br />orientation, location and physical characteristics of these faults <br />is not known, but exploration drilling information obtained adja- <br />• cent to them indicates that they are significant, and would pre- <br />clude mining in those areas due to associated pit wall stability <br />and ground water problems. <br />Although Kerr Coal suspects that the majority of the Sudduth coal <br />seam in and adjacent to the faulted areas is not mineable, the <br />actual amount of mineable coal left in place due to not mining <br />through Bush and Williams Draws is not known. Much additional <br />exploration drilling would be required to delineate the faults and <br />their characteristics well enough to determine the amount, if any, <br />of mineable coal not recovered through the proposed mine plan. <br />Additional reasons for not including Bush and Williams Draws within <br />the proposed areas of mining include drainage control and surface <br />water problems and the requests made by BLM, Exhibit 51, Coal Lease <br />Application C-22777 Environmental Assessment. <br />If Bush and Williams Draws were included within the proposed pits, <br />sedimentation ponds would be required within both draws. The <br />780-87 as <br />