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5. No blasting will occur: <br />• Within 50 ft of a buried telephone cable. <br />• Within 1,500 ft of a dwelling. <br />• At night. <br />• Within 1,000 ft of a public road. <br />6. The licensed blasting contractor will provide all supplies and materials and load and blast shots. <br />Each successive excavation within a yearly block will be designed to produce approximately 75,000 tons <br />of limestone after the unconsolidated material and shale have been removed. The drilling pattern will <br />usually be 12 feet by 15 feet to a depth of the bottom of the limestone. The actual depths will be <br />dependent upon limestone thickness. <br />The drill will be rigged with a dust collector and will use water to reduce dust emissions. Each blast hole <br />will be stemmed with drill cuttings and dirt according to standard industry practice, typically to a <br />minimum of 25 to 30 percent of the hole depth from the surface, to prevent surface blast. Each blast hole <br />will be approximately 4 to 6 inches in diameter. The blasting agents and delay devices will be installed <br />only by a licensed blasting contractor. Prior to blasting, an inspection of the blast site will be made to <br />ensure that no persons are within the blast area, and the proper signals will be sounded. <br />A scraper will typically be used to remove shale and unconsolidated materials, including topsoils (A and <br />E- horizons) and subsoils (AC and B- horizons), that will be temporarily stockpiled in designated storage <br />areas (refer to Exhibit D -1) within or adjacent to each 5 -Year production panel for re- application to the <br />mined area. Where appropriate, trucks may be utilized to supplement scraper excavation. <br />Wherever possible, topsoil and subsoil will be directly placed onto regraded overburden surfaces, via an <br />in -pit ramp from the pre -strip area to areas of active reclamation. An exception to this occurs in the area <br />of the central conveyor /access road /ditch corridor, which will remain open until completion of mining in <br />each panel. Each 1 -Year production block will be reclaimed by placing the overburden material on the pit <br />floor stripped from the adjacent panel subject to active quarrying and then reapplying the subsoil and <br />topsoil, except for the conveyor corridor, which will remain open until mining is completed in each panel. <br />Similarly, secondary access roadways along each side of the reclaimed spoils will be reclaimed following <br />the cessation of mining in each panel. Refer to the generalized cross - sections A -A' through C -C' on <br />Exhibit D -1, which illustrate the position of in -pit reclamation backfill and the conveyor corridor slot <br />during active mining. <br />TOPSOIL & SUBSOIL SALVAGE <br />As discussed in more detail in Exhibit I — Soils Information, A and E- horizon topsoil materials will be <br />salvaged separately from AC or B- horizon subsoil materials. Topsoil and subsoil removal and <br />replacement operations may be conducted with any of several combinations of equipment including a <br />scraper, truck/shovel, truck/loader, backhoe, dozer, etc. Mobile equipment will be used to remove topsoil <br />and subsoil materials that will be either directly hauled from the pit in advance of reclamation or placed in <br />stockpile storage area shown on the mine plan, adjacent to each production panel for easy re- application <br />to the mined area. It is proposed that each production block will be fully reclaimed by placing the <br />overburden material from the adjacent panel on the floor of the pit and then reapplying the subsoil and <br />Technical Rev No 4 <br />April 26, 2013 <br />D -4 <br />