2002-04-26_REVISION - M1983033 - Laserfiche WebLink

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MWW6 PLAN (CONT) NI®tD APRIL Z0~2 Elt-iisir D The new area adjoins the north line of the existing permit area, and is a rectangular area bounded by Frei family property on the north, and east. By Clear Creek County lands on the west and a 40 acre section owned by Bob Young in the southeast. The north the permit line varies from 300 to 400 feet south of the Frei property line and the east line follows the Gilpin/Clear Creek County line. The mining setbacks along the west, north & east lines will be 50 feet. The newly added areas will be mined using the methods described in the existing permit with the only change being the mining backfillinq method used for the north slope area. The approved blasting plan will be followed when mining in the new area. Ao-endment # 5 - MINING DIRECTION CHANGE Under the existing plan mining progresses from west to east on a north/south working face. This amendment requires a modifi- cation of that plan. While the existing face will continue to move east it will slow considerably, because the plan is to begin to mine to the north and west into the new area. Exhibit con- tains a site specific GEOTECHNICAL STUDY prepared by Revey and Associates, Inc.. It will be used as a guide when mining direc- tion is planned and implemented. The report contains a detailed explanation of the direction mining should take place and recom- mends actions needed when the final face location is reached. Upon approval mining will begin on the vertical highwall that has developed along the north side of the permit area. This area appears as an unnatural ridge between the working mine area and the next draw to the north. The plan is to lower this ridge by expanding the existing floor to the north creating, approxi- mately 7.25 acres of flat area along the north side of the mine. This will remove the highwall, so the backdrop is a natural 4