Laserfiche WebLink
diversion channel has been placed adjacent to the Level 6 pad <br />which isolates gulch flows from the waste rock pile. Furthermore, <br />the pile itself will be removed from the Gulch native channel <br />beginning in 2008. BMPs will be placed to control any stormwater <br />flows associated with this new setting as needed to control <br />construction activity releases and any seasonal stormwater flows. <br />Until the actual waste rock removal program is designed, it is <br />unknown as to which bmps will be appropriate for this effort. This <br />SWMP will be revised when these details become available. <br />• Berms comprised of mounted waste rock, exist along the outer <br />perimeter of the Level 3 and 6 pads to retain any water on the pads <br />and route it back towards the natural hill slope. The ditches <br />associated with the Level 6 pad will be maintained until the pad is <br />removed (anticipated 2010). <br />Revegetation measures: Native soil was retained as part of the <br />mine plan of operations and used to cover portions of the pad <br />surfaces and waste rock areas (that are not in use) to enhance <br />revegetation success. Currently, there are vegetated berms along <br />the edges of Level 6 pad. These berms will be disturbed as part of <br />the removal activities, however BMPs will be placed to control any <br />potential stormwater flows during the construction efforts. <br />• Confinement of Deadman Gulch drainage with the use of berms <br />has kept Deadman gulch flows contained within the gulch itself, <br />and any Level 6 pad stormwater flows from reaching this tributary. <br />These berms will be maintained in order to keep the stormwater <br />pathway from the Level 6 pad severed from the tributary. These <br />berms will be kept in place (and are a part of the diversion channel <br />constructed design) until such time as the waste is removed from <br />the Deadman Gulch native flow pathway. <br />• Waste rock pile terracing was accomplished in 1999 and continued <br />to the present. This terracing helps control any overland flow <br />stormwater energy. These terraces will be monitored for any sign <br />of erosion and maintained as mine operations progress. <br />ii. Materials Handling and Spill Prevention <br />The materials handled at the mine include recovered ore and waste <br />rock. The material is typically damp when obtained from the mine <br />and produces very little dust. The process of crushing and sorting is <br />small scale. The ore is crushed to cobble sized which is suitable for <br />sorting, sacking and haulage. This activity does produce some dust <br />Page 10 of 16