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Revised 12/21/82 <br />EAST DUMP <br />Approximately 1.1 million cubic yards of overburden will be placed in a <br />permanent dump, 0 to 40 feet thick, between the pit and the eastern boundary <br />of the property, called the "East Duinp". Presently, this dump area is somewhat <br />gullied. To ensure stability, slopes on the completed dump will range from <br />horizontal to 5:1, averaging about 9:1 or 11 percent. The final surface will <br />grade gently into the surrounding terrain. No part of it will be built on an <br />old landslide. <br />During construction of the East Dump, vegetation will be progressively <br />removed. Using scrapers, topsoil will then be removed and stockpiled as <br />detailed in Plate 15. Overburden material will be brought from the pit by <br />scrapers and spread along the contour in 6 to 12 inch lifts. The approximate <br />original drainage will be restored. The final surface will be scarified and <br />topsoil will be brought from stockpiles and spread by scrapers along the <br />contour to a thickness of one foot. Reclamation will then proceed as detailed <br />in the reclamation plan. See Section F, pages 3-6 for further discussion of <br />the East Dump. <br />Stages 6 - 9. The mining face in the lower half of the V-shaped cut will <br />pivot clockwise and then proceed southeastward to allow extraction of the <br />remainder of the lower seam. Overburden will be used to progressively refill <br />I the pit, with the fill fallowing the mine face no closer than 100 feet. <br />Haul Roads. The haul road for the Bourg mine consists of approximately <br />4732 feet of existing ranch road, which has been upgraded, and 2768 feet of <br />new road to the mine site. Maximum gradient on the road does not exceed 6%. <br />The entire road crosses BLM property; BLM has primary control of it and <br />the MLRB has agreed that where regulations conflict, BLM requirements <br />will be fcllci:cd. Specifications for the rears ~;cre .ictcrminr•d by the BLM <br />(See Appendix F). These included: road width, 30 feet; surface, 4 inches <br />of compacted base; road cut slopes, maximum of 1.5(h):1(v); fill embankment <br />built in horizontal lifts of 18" or less. <br />~_. <br />D-6 <br />i a <br />