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explosives magazine removal <br />substation removal <br />Hazardous waste container (55 gal drums) disposal <br />Reveszetation <br />Seeding is primarily accomplished using a rangeland drill. However, in some instances <br />broadcast seeding is used. There are different costs associated with the type of seedmix <br />used as specified in the Revegetation Plan (Tab 22). <br />The revegetation task includes cost for: <br />- drilling Seedmix #1 <br />- drilling Seedmix #2 <br />- drilling Seedmix #3 <br />- broadcast Seedmix #1 <br />- broadcast Seedmix #5 <br />- shrub /tree seedling planting <br />- drilling cover crop <br />- drilling deadhead and light use roads <br />Miscellaneous Reclamation <br />This work includes annual rill and gully repair, road maintenance, and sediment pond <br />cleaning until Phase III bond release. <br />Mobilize/Demobilize Equipment <br />Mobilization and demobilization costs were based on mobilizing the major pieces of <br />equipment from the nearest large town, in this case Craig, Colorado. <br />Fleet Determination <br />Once the volumes for the various phases of reclamation were determined, the number of <br />shifts, hours per shift, equipment types, operator /operating efficiencies, support <br />equipment, and overall reclamation time span were determined. The following <br />discussion provides the considerations utilized in determining the equipment fleet needed. <br />Production Shifts. One shift per day was used for topsoiling and finish grading. Two <br />shifts per day was used for open pit backfilling. Shifts were based on an eight -hour <br />period per shift. A conservative operating efficiency of 83 percent was used to account <br />for decreased productivity due to operator efficiency for scrapers. Fifty min/hr was used <br />for dozers due to other factors, taking darkness into consideration. <br />Equipment Type. The types of equipment selected were based on similar type equipment <br />presently operating at the mine site or could prudently be brought in for a job of this <br />magnitude. Whenever possible, Caterpillar equipment was used for reclamation due to <br />TR -53 6 Revised 05/13 <br />