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• <br /> Orchard Mesa Agg <br /> 11/94 <br /> Mining Plan, Page 2 <br /> drainage and surfacing with crushed rock. Installation of drain- <br /> age structures for the haul road is not required. Give the <br /> maximum extraction production coupled with available trucks, it <br /> is estimated that a maximum of 150 loads per day will utilize the <br /> haul route.Two types of trucks will be used; 10 yard dump trucks <br /> with a 15 ton capacity, and 10 yard dump trucks with 6 yard pups <br /> for gravel. <br /> In order to control dust on the haul road, it will be treated <br /> with a dust control solution. Dust control measures will be <br /> conducted on an as-needed basis during the hauling periods. The <br /> operator has sufficient water shares from the Orchard Mesa Canal <br /> for dust control, and has property with a year-round spring on <br /> the land within one mile of the proposed pit. <br /> Material stockpiles are stabilized with a chemical surfactant <br /> while the graveled haul roads are primarily controlled for dust <br /> by application of magnesium chloride. These dust control methods <br /> are considered to be acceptable and can be used in lieu of <br /> frequent (i.e. daily) water application. <br /> Total life of the operation is dependent upon surrounding <br /> communities ' gravel needs. However, based on assumed <br /> projections, it is expected that extraction will occur over a 15 <br /> year period. Operations will begin immediately upon permit <br /> issuance by the MLRB. <br /> D-2 <br />