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<br />' Pit is the smaller of the two pits and will encompass approximately 20 acres. <br />The West Pit will encompass approximately 110 acres. For details ~~f the mining <br />' operation, see Section D.2. <br />' On average, the mine will have a stripping ratio of 1.75:1. Twenty two and <br />one half million tons of waste rock will be removed over the life of the mine, <br />Six areas will be utilized for waste rock disposal. The largest of these disposal <br />' areas will be located south of the Rito Seco and will be utilized for disposal <br />of waste rock and dewatered tailings. Four smaller waste rock disposal areas <br />are proposed north of the stream. The sixth waste rock disposal area is the East <br />Pit. Once mining is complete in the East Pit, waste rock from the idest Pit will <br />' be used to backfill the East Pit. For a more detailed discussion on waste rock <br />disposal see Section D.3. <br />1 <br /> <br />1 <br /> <br /> <br /> <br /> <br />1 <br /> <br /> <br /> <br />Once mined, the ore will be separated into high-grade ore for processing <br />in the mill and lower-grade ore for heap leach processing. It is currently <br />anticipated that approximately 6.5 million tons of ore will be le;iched and 6.5 <br />million tons of ore will be milled. <br />The heap leach ore will be crushed to minus 3/16 inch and I~laced on the <br />leach pad. The leach pad will be a double-lined facility with a secondary <br />recovery system between the liners. The leach pad system is designed to be non- <br />discharging under normal operating conditions and the 100-yr, 24-hr design storm <br />conditions. The capacity of the leach pad and associated pond systen is designed <br />to contain the precipitation from a lOC-yr, 24-hr storm in addition to total. pad <br />draindown without discharging. The pad will be sloped to the southwest to free- <br />drain into a barren and pregnant pond system located in the southwest corner of <br />the leach pad. The heap leach facility is described in detail in `.section D.7. <br />The mill facility will consist of an additional crushing cir~:uit to crush <br />the ore to minus 250 microns, a typical flotation circuit, a cyanida~ion circuit, <br />and a gold recovery circuit. The mill tailings will be dewatered and disposed <br />in the southern waste rock disposal area. More complete discussions of the <br />milling operations and tailings disposal method are contained in Sections D.5 <br />and D.3, respectively. <br /> <br />