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Four of the cross sections were located on Topsoil Stockpile # 7 (one in each ordinal <br />direction from the top to the base of the stockpile, A-A', A'-B', A'-C, and A'-D'). Two <br />additional cross sections (X-X' and Z-Z') were established on corresponding adjacent <br />topography, one north of Topsoil Stockpile # 7 and one east of Topsoil Stockpile # 7 <br />(both in native topography). The following table presents the results. <br />X.S. Length Height Sloe % Grade Slope de Gradient <br />A-A' 350' 46' 0.1314 13.14 7.49 1:7.61 <br />A'-13' 140' 20' 0.1428 14.28 8.13 1:7.00 <br />A'-C 125' 12' 0.0960 9.60 5.48 1:10.42 <br />A'-D' 220' 42' 0.1909 19.09 10.81 1:5.24 <br />X-X' 500' 136' 0.2720 27.20 15.21 1:3.68 <br />Z-Z' 500' 120' 0.2400 24.00 13.49 1:4.16 <br />Based on a comparison of the characteristics of the above slopes and topography, the <br />characteristics of Topsoil Stockpile # 7 are similar or less steep than the characteristics of <br />the adjacent native slopes and landforms. As Topsoil Stockpile # 7 blends with the <br />adjacent native topography it complies with the requirements of "approximate original <br />contour" in the regulations, the in situ material in Topsoil Stockpile # 7 is excess and not <br />required for reclamation tasks, the slopes of Topsoil Stockpile # 7 are equal or less than <br />corresponding native landforms, therefore the potential for erosion is less than that of <br />native landforms, and the topsoil stockpile has been revegetated to a vegetative cover <br />higher than that of surrounding native landforms, again stabilizing the pile and reducing <br />erosion potential to a level below native landforms. For the above reasons, we assert that <br />it is not necessary to reconfigure Topsoil Stockpile # 7 to comply with CDRMS <br />regulations. <br />3. The requested text changes have been made. A revised page 5-20 has been appended <br />for inclusion into the renewal permit document. <br />4. The requested text change has been made. A revised page 5-25 has been appended for <br />inclusion into the renewal permit document. <br />5. The requested text deletion has been made. A revised page 5-25 has been appended <br />for inclusion into the renewal permit document. <br />Please call me at your earliest convenience to schedule a meeting to discuss the items <br />above. <br />Sincerely, <br />Michael S. Savage <br />Principal <br />C: Sandra Pautsky, Oakridge Energy, Inc. <br />Bryan Duff, Goff Engineering & Surveying