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Mr. Jones <br />Page 12 <br />September 22, 2015 <br />6.3.1 Exhibit A — Legal Description and Location Map <br />No comment. <br />6.3.2 Exhibit B — Site Description <br />3. Please specify the depth to groundwater in the location where trenching will occur. This <br />information may be obtained by reviewing records of wells that are in the vicinity of the <br />operation. <br />4. The Applicant has stated that a structure will be constructed to contain waste rock and <br />overburden. The proposed dimensions of the structure would hold approximately 89 cubic <br />yards (struck capacity). The Mining Plan specifies the maximum dimensions of the trench at <br />any given time would not exceed 10' x 50' x 25', which would result in approximately 463 <br />cubic yards of material. Please specify where this material will be stockpiled if the waste <br />rock containment structure can only hold 89 cubic yards of material. Will the waste rock be <br />heaped when loaded into the containment structure? If so, what is the heaped capacity of the <br />containment structure? Finally, please specify what materials will be used to build the <br />containment structure. <br />6.3.3 Exhibit C — Mining Plan <br />5. The Applicant has estimated the topsoil depth at 49 inches or less. It is important to note that <br />topsoil is defined as the unconsolidated mineral or material on the immediate surface that <br />serves as a natural medium for the growth of plants. Using the Natural Resources <br />Conservation Service (MRCS) Web Soil Survey, the Division determined the affected area <br />lies within the Tahuna-Legault Rock Outcrop Complex, which can be broken down into the <br />following horizons: <br />Table 1: Typical Soil Profile, Tahuna-Legault Rock Outcrop Complex <br />Oi — <br />0-1 inches <br />Slightly decomposed plant matter <br />Oa <br />— 1-2 inches <br />Moderately decomposed plant material <br />Bw <br />— 2-8 inches <br />Gravelly sandy loam <br />Bc <br />— 8-20 inches <br />Very gravelly loamy sand <br />C — <br />20-24 inches <br />Extremely gravelly loamy sand <br />Cr — <br />24-28 inches <br />Weathered bedrock <br />Source: http://websoilsttn,ey.sc.ezoti,.ttsda.zor/App/WebSoilSuney.as� <br />Based on the NRCS data, it is likely that only the top 2-4 inches would be salvageable as a <br />plant growth medium. Please commit to salvaging and stockpiling the top 2-4 inches as <br />topsoil. This material should be kept separate from the lower layers of topsoil. <br />