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Henderson 2000—PC3 Ove0d Surface Conveyor • <br /> Technical Revision #7 to Permit M-77-342 Page 2 <br /> • The Henderson 2000 project involves converting from ore haulage using locomotives from the <br /> underground mine beneath Red Mountain to a conveyor haulage system. Henderson 2000 <br /> employs an underground crushing operation with conveyance to the surface using conveyors <br /> (PC1 and PC2) to a transfer point situated along the existing Henderson railroad grade. PC3 <br /> continues from the terminus of PC2 along a new overland route to the Henderson Mill. <br /> On January 19, 1998, Henderson filed an amendment to its permit describing the intended <br /> activities and rationale associated with the inclusion of 53.36 additional acres into the permitted <br /> affected land area and future reclamation of the PC3 Conveyor corridor. A TR to that <br /> amendment (TR-06) was formalized with the DMG in a letter from the DMG to CMC dated <br /> March 27, 1998. Based on comments from the DMG and specific requirements of the U.S. <br /> Forest Service, Henderson submitted a response letter dated April 6, 1998 to DMG that clarified <br /> specific commitments included in the amendment. The amendment was approved by DMG on <br /> April 17, 1998, and site preparation and construction work started shortly thereafter. <br /> • 2.0 NEED FOR TECHNICAL REVISION <br /> Mr. Allen Sorenson, DMG Reclamation Specialist, inspected the site of the PC3 conveyor work <br /> on August 6, 1998. During this inspection, several items were noted that deviated from the <br /> approved amendment. In his inspection report dated August 13, 1998 (Appendix A), Mr. <br /> Sorenson stated that the deviations could be address with a TR. These issues are: <br /> • Construction of two short temporary road segments disturbing less than 1.5 acres; <br /> • Changed topsoil stockpile locations and a stabilization plan for the REC-6 topsoil <br /> stockpile; <br /> • Installation of a 4-inch rock cover between Stations 80 and 85 as required by the U.S. <br /> Forest Service; and, <br /> • The use of shot-crete as a method for stabilization of steep rocky cuts. <br /> The DMG determined that the access road segments should be included into the affected lands <br /> . currently permitted in accordance with DMG protocol under its affected land exchange area <br /> N:/255/TR07/TR7.doc <br />