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• Crusher, and Electrical Distribution Gear. As part of setup, this trailer is jacked up and put on wooden cribbing for <br />stability and vibration control during operation. <br />Crushed Rock Conveyor - This conveyor moves the final product from the Crushing Plant Trailer to the Crushed <br />Rock Bin. <br />Crushed Rock Bin - This elevated, tapered bottom, steel bin is approximately 15' x 15' square and has a storage <br />height of 16'. The bin can hold 80 tons of material. The bin is portable, mounted on skids. A removable roof <br />covers the bin to keep the weather out and prevent any acidic runoff. The bin has a live bottom transfer conveyor to <br />move material to the Ball Mill Feed Conveyor. <br />Ball Mill Feed Conveyor - This conveyor moves the crushed product from the Crushed Rock Bin to the Ball Mill <br />Trailer. <br />Ball Mill Trailer - This mobile gravity separation plant is assembled in an enclosed trailer measuring 8'6" wide x <br />8'6" high x 48' long. The trailer is registered with the State of CO DMV as "Special Mobile Machinery". The <br />machinery in this trailer consists of. Ball Mill, metered lime feeder, Concentrating Table, Middlings Recycle Pump, <br />Electrical Distribution Gear, and Water Distribution Piping. As part of setup, this trailer is jacked up and put on <br />wooden cribbing for stability and vibration control during operation. <br />Flotation Trailer - This mobile flotation separation plant is assembled in an enclosed trailer measuring 8'6" wide x <br />8'6" high x 48' long. The trailer is registered with the State of CO DMV as "Special Mobile Machinery". The <br />machinery in this trailer consists of: (1) Two-Bank Float Cell, (1) Four-Bank Float Cell, (1) Six-Bank Float Cell, <br />pH Control and Monitoring/Recording Instrumentation, Electrical Distribution Gear, and Water Distribution Piping. <br />As part of setup, this trailer is jacked up and put on wooden cribbing for stability and vibration control during <br />operation. <br />• Other Mobile/Portable Equipment - At any given time there may also be parked in this area front-end loaders, <br />excavator, road grader, flatbed trailer, utility trailer, storage containers, engine driven compressor trailer, dump <br />trucks, employee vehicles, heavy equipment implements, water truck, and any other equipment necessary to conduct <br />operations. A portable toilet is also located on site. <br />Water Holding Pond - An old prospecting trench was cleaned out and lined with 3" of steel reinforced shot-crete. <br />The cured concrete was then sealed with an asphalt emulsion. The pond measures an average of 4' deep x 6' wide <br />x 100' long and can store 18,000 gallons of mill feed water. New water and recycle water is contained here for <br />milling operations. It shall be noted that on the west end a very gradual "ramp" was incorporated into the pond so <br />that any errant critters could safely escape. The surface of the shot-crete is rather rough and not slippery when wet. <br />Tailings Impoundment Area <br />Stormwater/Sedimentation Collection Pond - This structure is designed to collect stormwater runoff from the <br />Tailings Impoundment Affected Area and allow any carried sediment a chance to settle for future removal. Sizing <br />has been done to allow for containment and settling of a 10 year/ 24-hour storm event (2.6" as reported by NOAA <br />Atlas 2, Vol. III) and controlled passage of a 100 year/ 24-hour storm event (3.8" as reported by NOAA Atlas 2, <br />Vol. III). <br />This catchment and settling basin will be constructed down gradient of the disposal cell to intercept and settle <br />sediment from surface water run-off in the event of such an occurrence. Leachate shall be collected and returned by <br />pumping to the impoundment and/or water storage above the mill. Impacts to surface water will be controlled as per <br />the stormwater management plan (633(2)(c) and Exhibit T) and design details found in the Tailings Impoundment <br />Design Drawings (Exhibit E). A rip-rapped overflow discharge is incorporated into the design. <br />Impacts to groundwater will be controlled by the recycling of leachate back to the process stream, the sealing of <br />joints and fractures in bedrock by the clay content of the hydraulically classified waste stream, and the chemical <br />control of the process water quality as described in 6.3.3(2)(a).