2017-02-02_PERMIT FILE - C1982056A (3)

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Stoker Truck Loadout Pad A concrete pad is planned for the area under the stoker truck loadout area. This concrete pad will be 60 feet by 20 feet and 2 ft thick. The pad will remain in place until the prep -plant is dismantled. Reclamation of the pad will consist ol' breaking the concrete up and disposal on site. Construction at lien -Plant The belt from the low quality coal stockpile to the grizzly screen will require a 150 Horsepower drive unit and electrical power. The drive unit is approximately 10' x 20' x 8' and is mounted to a steel frame. Power will be supplied from the prep -plant. One power pole will be set on the south side of the overland belt, off the south east corner of the prep -plant, one pole will be set off the south-east side of the refuse hopper, and one pole will be set beside the transformer, west of the grizzly screen. A 300 KVA transformer with dimensions of 5' x 5' x 5' will be set on a crushed limestone base west of the grizzly screen. The drive unit will be placed on fill material on the west side of the grizzly screen. Four 18" diameter concrete guard posts will be placed along the travel lane next to the transformer to prevent damage to the transformer. These additions will be removed when the belt from the low quality coal stockpile is no longer required. The aeration tank, which is located between the prep -plant building and the flocculation tank, will have a concrete slab constructed under it to capture any overflow from the tank and direct it into the plant. A 10' x 10' x 4" concrete slab will be built which connects to the floor slab of the prep -plant. A sheet metal enclosure will be built to a height of 7' above the aeration tank and a door installed to provide access to the flocculation tank. This addition will remain in place until the prep -plant is dismantled. Two concrete pads are planned to be constructed on the north and east sides of the prep -plant. The pad on the north •side will be 36' x 10' x 0.5' and the pad on the east side will be 20' x 50' x 0.5'. These pads will remain in place until the prep -plant is dismantled. Reclamation of these pads will consist of breaking the concrete up and disposal on site. Lonttwall Equipment Storave Yard Culvert A 20' long 8" diameter culvert will be placed at the entrance to the longwall equipment storage yard. The installation of this culvert will prevent excessive rutting of the ditch due to traffic into this area. The location for installation of this culvert is close to the break in slope of the ditch and very little flow is collected at this point. The culvert will be removed when the storage area is no longer needed. Additional Drill Hole at Rock Dust Tanks Two additional drill holes are required at the rock dust tanks as an emergency measure to by-pass a conduit in the existing (tole which is blocking the flow of rock dust into the mine. These holes will be drilled approximately 6 to 8 feet from the concrete foundations supporting the west tank. Two 6'A" diameter holes will be drilled to a depth of 308' below the surface. One of the holes will be reamed out to a 13 Y-_" diameter hole to allow space for an 8" casing and grouting. A 2'/." steel pipe casing will be used in the second hole for conduit for control wiring. The drilling operation will require approximately 500 gallons of water and will generate up to 13.8 cubic yards of cuttings for a total of 16.3 cubic yards of material to be collected. A nutd pit will be used to capture the cuttings and water. The dimensions of this mud pit will be approximately 10' x 12' x 4' for a capacity of 17.8 cubic yards. Water for the grouting operation will require a pit with approximate •dimensions of 6' x 6' x 4' to be dug. These pits will be constructed in an area which has been previously disturbed and Iocal(M out of traffic areas to the extent possible. To prevent the formation of a soft spot, water x% ill be pumped MR 97-153/MR 97-155 2.05-65 Revised 12/03/97