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<br />' take two years or longer to mine. It is anticipated that mining will begin as <br />soon as the permit issues and will move ahead at a minimum rate of 1,000 tons per <br />' day, to a maximum of 5,000 tons per day. <br />' The principal items of mining equipment to be used are scrapers for <br />overburden removal; dozers for aggregate pushing, front end loaders for on-site <br />aggregate transport and over-the-road trucks for delivery of off-site projects. <br />A water truck will be employed as appropriate for dust abatement and miscellaneous <br />1 service, and fuel and utility type vehicles for transporting men and <br />' materials. <br />' No major water diversion will be required, though some minor diversions <br />will be implemented to divert run off around the working pit and to divert Lone <br />' Tree Creek around the horseshoe bend to be used as a sedimentation pond. A <br />working sump may be maintained in the mine to channel runoff that would <br />' otherwise be intercepted by the pit. <br />' The average thickness of the aggregate and the overburden is indicated by <br />the test pit information included in the attached table. The pit numbers <br />correspond to locations on the pre-mining map. <br />t The aggregate is described in the Colorado Geological Survey Document <br /> cited abo ve, in the se ction on geology. The mining plan on the map has been <br /> i <br /> based on the following assumpt <br />ons: <br />' 1. Aggregate weight: 2900 lbs./cubic yard <br /> 2. Aggregate reserve: 2300 tons per acre foot (10% process loss) <br />' <br /> Unit 1 is assumed to be mined for a contract of 400,000 tons of pit run <br />' and base material. It is assumed that all material removed from unit one will <br />be sold and that the only required processing will be a grizzly operation for the <br />' removal of boulders and cobble. <br />1 <br />