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STORMWATER MANAGEMENT PLAN <br /> NEWMONT <br /> CRIPPLE •- GOLD MINING COMPANY <br /> Unloading of explosives materials (ammonium nitrate and emulsions)from delivery tankers to bulk storage <br /> and unloading from bulk storage to the mine explosives truck presents a risk of release of dry or non-liquid <br /> product Loading and offloading from the bulk storage area occurs within bermed areas to limit migration of <br /> accidental releases. <br /> The pneumatic transfer of lime into the lime silo presents a risk of release of dry lime material. Lime is <br /> dispensed from the silo onto a conveyor belt, so there is no bulk removal or transfer of lime from the silo. <br /> Some lime, however, periodically accumulates around the base of the lime silo. <br /> Process chemicals (sodium cyanide, hydrochloric acid, sodium hydroxide) are delivered to the ADR facility <br /> by bulk truck deliveries. Liquid chemicals are transferred to bulk storage tanks while attended by the driver, <br /> providing for an immediate response in the event of an incident The bulk delivery trucks for acids and <br /> bases park within a contained area, located in large part on top of, or draining to, the lined VLF while <br /> delivering product. The transfer line connections from the truck to the tanks are made inside the contained <br /> area. Potential acid spills would entirely flow into the VLF where excess alkalinity exists to neutralize the <br /> solution. Sodium hydroxide solution would flow onto the VLF. In the event that releases do not reach the <br /> VLF, the Process Department has a front-end loader and backhoe at their disposal and these, or Mine <br /> Operations earth-moving equipment, would respond to berm the areas as necessary and to remove the soil <br /> that may be impacted and place it on the VLF. The VLF already has high alkalinity, as noted above. <br /> CC&V is equipped with cyanide dissociation chemicals (oxidizers) such as calcium hypochlorite and <br /> hydrogen peroxide to neutralize residual sodium cyanide in the soil, if it should be released outside <br /> containment. <br /> Laboratory operations are conducted indoors. Waste products such as fire assay cupels, crucibles, and <br /> slags are kept contained and covered until shipped off site for proper disposal or recycling. The covered <br /> transport container is located immediately outside of the laboratory building and is routinely inspected by <br /> laboratory and other process employees to ensure that no waste is deposited on the ground and that the <br /> transport container lid is closed. <br /> The equipment maintenance facilities consist of the Ironclad Maintenance/Warehouse Facility, the Truck <br /> Shop, the Light Vehicle Maintenance Facility, and the old and new Wash Bay Facilities. Each of these <br /> facilities is enclosed. <br /> Hydraulic shovel maintenance is typically conducted within the Mine area because the shovels are not <br /> readily transported to the Ironclad Facility If minor equipment maintenance and repair is required, it may <br />