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• Miscellaneous Reclamation <br />This work includes annual rill and gully repair, road maintenance, and sediment pond cleaning until <br />Phase III bond release. <br />Mobilize/Demobilize Eq~ment <br />Mobilization and demobilization costs were based on mobilizing the major pieces of equipment <br />from the nearest lazge town, in this case Craig, Colorado. <br />Fleet Determination <br />Once the volumes fox the various phases of reclamation were determined, the number of shifts, <br />hours per shift, equipment types, operator/operating eEfiaencies, support equipment, and overall <br />reclamation time span were determined. The following discussion provides the considerations <br />utilized in determining the equipment fleet needed. <br />• Production Shifts. One shift per day was used Eor topsoiling and finish grading. Two shifts per day <br />was used for open pit backfllling. Shifts were based on an eight-hoax period per shift. A <br />conservative operating efficiency of 83 percent was used to account Eor decreased productivity due <br />to operator eEficienry for saapexs. Fifty min/hr was used for dozers due to other factors, taking <br />dazkness into consideration. <br />E-lc uinment Type. The types of equipment selected were based on similar type equipment presently <br />operating at the mine site or could prudendy be brought in for a job of this magnitude. Whenever <br />possible, Caterpillar equipmem was used for reclamation due to widely published information <br />regarding costs and performance. All equipment costs were taken from those provided by CDMG. <br />Please see appropriate worksheets in Attachment 25-1 for a list of all cost factors. Equipment and <br />operator performance factors were based on generally published and accepted criteria (see individual <br />worksheets). <br />Operator wages were all based on information supplied by CDMC. <br />Reclamation Time Frame. A reasonable time frame fox a job of this magnitude is estimated at <br />approximately 1,033 hours for backfilliug and grading, and 1,058 hours fox topsoiling. <br />PR-02 7 Revised 01/06 <br />