Laserfiche WebLink
STORMWATER MANAGEMENT PLAN <br /> NEWMONT <br /> CRIPPLE •- GOLD MINING COMPANY <br /> areas. During crusher maintenance, accumulated used grease will be stored in barrels until it is shipped off <br /> site for disposal. The storage yard area has a transfer bin for scrap metal that is recycled off site as well as <br /> transfer bins for "domestic" wastes that are transported off site by a commercial waste hauler. The yard <br /> also stores metal crusher parts. The principal potential pollutant from the Crusher Area is sediment. <br /> The laboratory has two baghouses: (1) one baghouse for fire assay venting ducts, which collects solids in <br /> a barrel connected to the baghouse system that, when full, joins the cupels, crucibles, and slag in the <br /> transport container, and (2)another baghouse that receives pulverized fines, which are then transported to <br /> the VLF for processing, along with other remnants of the rock samples the laboratory crushes and discards <br /> Roads are periodically graded, surfaced with gravel to minimize muddy conditions, and periodically treated <br /> with a dust suppressant and/or water to control fugitive dust generated by vehicles and equipment. <br /> 4.2.6 On-site Waste Disposal Practices <br /> Currently, there are no regulated landfills operated at the Site. CC&V does not have a Colorado Department <br /> of Public Health and Environment, Solid Waste Division, permit to operate landfills Construction and <br /> demolition debris generated onsite are deposited in designated locations within the OSAs. Construction <br /> debris includes concrete, stone, brick, wood, asphalt paving materials, metal, and other inert materials. <br /> Liquid and solid waste materials are recycled off-site or sent via commercial haulers to off-site disposal <br /> facilities. <br /> 4.2.7 Stockpiles of Overburden, Ore, Products, and Waste <br /> Soil removed prior to mining or construction is currently stockpiled in various locations outside of active <br /> drainages. Soil stockpiling is sporadic and occurs during the initial stages of developing the surface mines, <br /> OSAs, or extensions of the VLF Soil is removed from stockpiles when needed for reclamation. Soil <br /> stockpiles are graded and seeded within one year of completion to reduce erosion concerns and as required <br /> under permit M-1980-244. Locations selected for soil storage are generally in upland areas, away from <br /> drainages, thereby limiting the need for the diversion of potential run-on. <br /> OSAs are developed in accordance with plans that (1) divert run-on where feasible; and (2) re-establish <br /> new drainage routes for concentrated flow at suitable gradients using coarse overburden check dams, <br /> and/or detention basins or sumps to develop a stable flow channel. The reclamation areas are seeded as <br /> soon as practicable after they are graded and the stockpiled soil applied. During reclamation grading, most <br /> slopes of the OSAs are reduced to approximately 2.5H:1 V to reduce erosion potential. <br />