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Logan Wash Mine TR No. 4 <br />1.0 Introduction <br />This technical revision has been prepared to present proposed changes to the original reclamation <br />plan (Plan) and supplement the Plan where needed. The original Plan was prepared in 1978 and <br />updated in 1981. Since that time, certain reclamation practices or revegetation procedures have <br />been replaced with more successful methods. The original Plan did not address in detail the <br />issues of portal sealing or plugging, shaft closure, or the removal of surface rock protection. <br />This technical revision describes new methods to establish "biological islands" on the slopes of <br />the waste-rock dumps and revegetation of the bench and road areas, and presents methods of <br />shafr and portal closure and removal of surface rock protection structures. <br />The following narrative refers to areas initially described in the original Plan (Exhibit E in mine <br />permit) and illustrated on Exhibit F (Attachment A) of the mine permit. Areas not discussed in <br />this technical revision have previously been reclaimed or do not apply to the reclamation plan. <br />These include Areas 5 through 12, 14 through 18, 20 and 21. <br />Finally, due to scheduling issues, much of the reclamation proposed in this technical revision <br />was implemented during the summer of 2003. At that time, the Division of Minerals and <br />Geology was contacted and involved in discussions concerning revisions to the reclamation plan. <br />In addition a site visit was conducted by DMG in September 2003. The reclamation work <br />performed was consistent with or considered more thorough than the original plan. This revision <br />states the status of reclamation for each mine area. <br />2.0 Waste-Rock Slopes <br />2.1 Lower Waste-Rock Slope (Area la) <br />The Lower Waste-rock Slope (Lower Dump) is located in the north tributary gully (Dry Gulch) <br />at the head of Logan Wash (E %, NE %4, and the W %i NW % Section 25). Exhibit F (Attachment <br />A) of the original reclamation plan in the mine permit shows Area la to include both, the upper <br />dump below Area 2, the Upper Bench, and the area northwest and below Area 3, the Lower <br />Bench. In addition, Exhibit F shows the potential future footprint of this dump extending to the <br />west side of Dry Gulch; an approximate area of 30 acres. However, this portion of the dump was <br />never constructed. Amore accurate depiction of the existing lower dump is represented by the <br />lower portion of Area 1 a, that is, the area directly west and southwest of the Lower Bench (Area <br />3, see Attachment A). The sloped face of the existing the Lower Waste-Rock Slope (Lower <br />Dump) is approximately 7 acres in size. This section of the Technical Revision describes <br />reclamation activities for the Lower Dump, the area immediately west of the Lower Bench (Area <br />3). <br />Proposed Reclamation <br />OOSI began reclamation of the lower dump during the summer of 2003. Reclamation of this <br />feature presents several challenges including its very steep (35 to 38 degree) slope, rocky <br />Western Water 8 Land, Inc. <br />