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0010 <br /> General Shale <br /> Building The American Dream® <br /> Clay Stockpile Pad Areas <br /> When mining is complete the clay stockpile pad areas will be covered with a dust suppressant <br /> such as Coherex, magnesium chloride, or similar material. If General Shale determines dust <br /> suppressants are not cost effective, grog or similar gravel material will be laid down on the <br /> stockpile pad area floor In stockpile areas where the pad areas are starting to grow grass <br /> tackifier will be utilized to minimize dust until a good stand of grass is established. <br /> Dust Abatement Plan During Periods of Mining Inactivity <br /> Access Road <br /> The recycled asphalt pavement (RAP) will be monitored for dust. If areas become dusty or are <br /> missing, then additional RAP will be added to the access road. <br /> Vehicle speeds will be posted at 15 mph. <br /> Stockpiles <br /> Topsoil and overburden-interburden stockpile will be monitored for weeds and the amount of <br /> grass growing on the stockpile(s). Stockpile(s) will be maintained by mowing, spraying for <br /> weeds, overseeding, fertilizing, blanketing, applying tackifier etc. until a good stand of grass is <br /> established. <br /> Clay stockpiles will be monitored for dust. If it is found the surface crusting is not effective for <br /> wind erosion a tackifier will be applied to the clay stockpile. <br /> Clay Stockpile Areas <br /> As the clay stockpiles are consumed, the exposed stockpile pad area floor of the clay stockpile <br /> pad areas with be covered with a dust suppressant such as Coherex, magnesium chloride, or <br /> similar material. If General Shale determines dust suppressants are not cost effective, grog or <br /> similar gravel material will be laid down on the newly exposed areas of the stockpile pad area <br /> floor. It should be noted that the clays stockpile pad area floor within 50 feet of the clay <br /> stockpile face will not be treated because this is the working area of the stockpile and surface <br /> treatments for dust will be ineffective in these areas. <br /> General Shale, 1845 West Dartmouth Avenue, Denver Colorado 80110 Page 5 of 5 <br /> T: 1-800-477-9002 1 F: 1-303-781-1818 1 www.generalshale.com <br />