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~' • Ms. Susan Burgmaier <br />November I, 1995 <br />New drainage channel <br />The 006-NE-1 drainage channel, as shown on Exhibit 20-2, Post Mining Topography, <br />will be extended in a northeasterly direction from point J] approximately 2200 ft. The <br />006-NE-2 drainage channel will be moved to the southeast and the overall length <br />shortened by 100 ft. Both these drainages end in the exact junction where the post mine <br />plan states, at point BB or sedimentation pond 006. <br />Drainaee channel statistics <br /> Aoorovcd Existin <br />006-NE-I Post mine length 3500 fi. 5700 ft. <br />Post mine upper elev. 7550 7685 <br />Post mine slope "/° 12.R "/° 10.2 "/" <br />006-NE-2 Post mine length 3350 ft. 3250 fi. <br />Post mine upper elev. 7700 7700 <br />Post mine slope "/° 14.3 % 14.8 <br />Noses: I. For approved statistics see Exhibit 20-2 and Table 20-2 in Volume 13, Tab 20. <br />2. For existing statistics see the enclosed contour map dared 10-24-94. <br />Division of Minerals and Geology Inspection comments <br />The following are continents about the B pit, i.e. northwest A pit, from the backfilling and <br />grading sections: <br />Inspection date Insocclor Comments <br />9-7-94 SLB no problems noted <br />9-14-94 ESC no problems noted <br />10-2R-94 SLB Reclamation operations were nearly complete on the northwestern <br />portion of the A pit. The final highwall had been blasted, graded, and <br />covered with topsoil....The reclaimed topography appeared to be in <br />compliance with approved post mine contours and blended well with <br />existing slopes. <br />11-R-94 ESC Northwest portion of the A pit appears to be complete and blends in <br />well with the existing topography. <br />I-4-95 SLB Final grading was complete on the upper I/3 of the pit. <br />3-31-95 DTM measured final drainage--no specific enforcement actions <br />