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General Shale <br /> Building The American Dream® <br /> the pit south of the mine pit pond. The broken-down grog will be blended with fresh grog to <br /> minimize dust. <br /> Grog may also be stockpiled at the south end of pit as a location to dispose of grog from the <br /> brick plant. <br /> Then when reclamation begins, we will place the grog into the pit. We do not anticipate any <br /> settling and voids due to the placement of these materials because the grog will be placed in 1-5- <br /> foot lifts, blended with the current overburden materials and compacted. The scrap brick will be <br /> hauled starting in August 2020. <br /> These materials will not impact surface water runoff quality, because these materials do not <br /> contain contaminants, and local area storm water runoff is diverted away from the mine <br /> disturbed area. The grog will not contaminate ground water because it has been fired to a high <br /> temperature. Further, these materials will not be placed below the saturated zone. <br /> Dust Abatement Plan <br /> Please see attached dust abatement plan <br /> Allowance of scrap brick for stabilization of overburden-interburden stockpiles <br /> GSB would like to utilize grog to cover the slopes of the interburden-overburden stockpiles as an <br /> alternative to tackifier. This would only be done on slopes that face the interior of the mine and <br /> away from the houses. <br /> Plan for Current Overburden Stockpile, Topsoil Stockpile, and Associated Stormwater <br /> Ditch Dust Mitigation and Seeding <br /> The proposed maintenance and seeding plan are as follows: <br /> 1. July or early August 2020, when mowing contractor is available, mow the weeds on the <br /> overburden stockpile, topsoil stockpile, and ditch area. Getting rid of the weeds now <br /> rather than later should help the native vegetation establish itself <br /> 2. Cover with tackifier any bare spots that are missing tackifier or areas disturbed by <br /> mowing with tackifier in July or August 2020 after mowing. The area north of the white <br /> sand clay stockpile will be covered with tackifier because this area is starting to grow <br /> grass. <br /> 3. Spray magnesium chloride dust suppressant in July or August 2020 on the clay stockpile <br /> pad areas. <br /> 4. Review the area in September 2020 to determine what is needed to continue establishing <br /> the grass. This could include <br /> a. Overseeding <br /> b. Fertilizing <br /> c. Herbicide application for weeds <br /> General Shale, 1845 West Dartmouth Avenue, Denver Colorado 80110 Page 2 of 5 <br /> T: 1-800-477-9002 1 F: 1-303-781-1818 1 www.generalshale.com <br />