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3 .0 - Best Management Practices for Stormwater Pollution Prevention <br />The only potential pollutant sources would be stormwater and associated sediments <br />from direct precipitation on the mine area and temporary material stockpiles. Excavation <br />and haul equipment left onsite will be located (parked) in active areas of the site where <br />ditches, berms, and silt fences will be used as BMPs. These BMPs will be modified as <br />mining activities progress across the site. The primary site BMP will be the excavation <br />area and/or the active site/working areas. A fence completely surrounds the site and a <br />small berm and or silt fencing just inside the fence will contain all waters to the "Flat" <br />site area. The berm/silt fence provides 100% stormwater containment of the site a will <br />direct potential stormwaters to the excavation. <br />There are plans to provide for a portable crusher or screening plant (and some possible <br />asphalt production) at this site. All material will be handled onsite using dragline, <br />bulldozers and front-end loaders to temporarily stockpile and load to the relevant process <br />equipment. Process equipments will be mobile and sufficiently bermed when onsite. <br />Material stockpiles may be produced and reduced on a daily basis or for longer term <br />stockpiling and will be conveniently located adjacent to active mine pit areas as <br />excavation activities progress across the site west to east. No refuse and acid forming or <br />toxic materials will be involved in this operation. The operation will expose groundwater <br />within the excavation and will have concurrent reclamation. Overburden will be <br />stockpiled temporarily and placed in lifts at the base of the excavation after aggregate <br />materials are removed. This operation will produce sand, gravel, rock and soil materials