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shallower than 2H:IV. Additional calculations for the storm water/sediment settling ponds is <br /> presented in Exhibit G-Water Information. <br /> The sediment control system for the mine, including the water handling system from the South <br /> Platte River, is shown on Map C-2. The permit area is divided into two main areas, the area north <br /> of Access#1 that drains into Ponds 3 and 4 and the area south of Access#1 that will drain into <br /> sediment settling ponds E,F and H. Water housed in sediment settling ponds 1-4 will be <br /> recycled into the processing plant near these ponds. <br /> Several hazardous materials will be stored and used on-site throughout the project. These <br /> materials are only products that are associated with diesel motors, and products associated with <br /> asphalt and concrete production.No blasting will take place as part of the Alma Placer gold <br /> mining operation. <br /> Material Quantity Location Secondary <br /> Containment <br /> Off-highway diesel 6,000 gallons Processing_Building Double-walled <br /> Maintenance oils and grease � <50 allons Equipment Building Double-walled <br /> - — — <br /> Off-highway diesel 8,000 gallons _ _ <br /> Processing <br /> g g g Concrete block walls <br /> storage building <br /> H drofloc -- -- <50 allons-- Pr -`g--- - ------- - <br /> y ocessing Buildin LProcessing Building <br /> Alma Placer Mine w <br /> December 2017 D-9 <br />