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b. Ore Stockpile <br />The ore stockpile is located south of and directly adjacent to the waste stockpile. <br />Currently there is no ore stockpiled on the surface. During active mining, the ore <br />is piled up to a workable stockpile and hauled to the mill using a first in, first out <br />system. Ore will be stored on site for no more than 30 days after mining <br />operations cease. <br />Ore is not expected to have any adverse leaching effect here due to the limited <br />exposure time the ore is left on the pad, plus limited precipitation in the area <br />combined with the soils underlying the pad that have a high clay content, low <br />permeability and limited downward mobility. <br />Berms, ditches and catchment ponds have been sufficiently constructed to divert <br />water around the ore pile and handle a 100 -year, 24 -hour storm event (see above <br />under waste rock pile). <br />A contractor will be used to haul the ore from the surface ore stockpile area to the <br />mill. The ore haulage contractor will be responsible for a spill control plan. <br />c. Soil Excavation and Stockpile Areas <br />Soil was stripped during construction of the waste and ore stockpile areas and is <br />stored north of and directly adjacent to the waste rock pile. Enough soil has been <br />salvaged to cover all affected areas with approximately 2 to 6 inches of soil. In <br />reclaiming the northern portion of the mine, 2 to 6 inches of soil was distributed, <br />pocked to retain moisture, and seeded. This has proven successful in supporting <br />re- vegetation efforts and it is anticipated that the same will be true for the <br />southern portion. <br />A ditch running between the waste rock pile and the soil stockpile diverts any <br />runoff from the above site basins around the stockpiles. The soil stockpile <br />supports some sparse vegetation that further protects it from erosion. <br />d. Control Structures <br />Berms and ditches have been constructed to divert stormwater around the waste <br />and ore stockpiles. Above the waste and ore stockpile area are two small off site <br />basins (11.89 and 5.05 acres). All runoff from these basins is diverted via ditches <br />around the piles. All runoff from the waste rock pile is contained in a large <br />catchment basin located between the soil and waste stockpile area at the toe of the <br />waste rock pile. Any runoff from the ore stockpile will be contained in a second <br />retention pond located at the southern most end of the materials storage area (see <br />Appendix I, photos 12 and 13). <br />All runon to the surface operations area will be contained by two retention ponds, <br />one located on the northern side of the operations area. The second one has been <br />constructed using berms that extend completely around the portal creating an <br />additional retention pond at the mouth of the portal. <br />D -5 <br />