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21. The Exhibit E Mining Plan Map Detail 1 map depicts areas where excavations,topsoil,and <br /> overburden will be located. The Planned Disturbance list on this map shows each dig area will be 875 <br /> square feet and each associated spoil area will be 650 square feet.Please clarify how the proposed <br /> spoil areas will be smaller than the size of the dig area. In addition,please provide the maximum area <br /> of the topsoil stockpile areas. <br /> Response: The locations shown of the proposed dig,topsoil, overburden, and growth medium stockpiles <br /> on the Exhibit E—Mining Plan Map,Detail 1 are approximate.Their more specific sizes and <br /> locations and depth(depth now stated to be 20 feet)will be subject to the mineral direction of <br /> trend. <br /> The topsoil stockpiles and the growth medium stockpiles depicted have each been revised on <br /> the Exhibit E—Mining Plan Map, Detail 1 to reflect scaled stockpiles. They represent a 5 inch <br /> depth of material in a 25 x 35 feet area(14 cubic yards). Factoring is a 45 degree slope as the <br /> angle of repose for the stockpiles,this results in 20 feet diameter by 5 feet in height stockpiles. <br /> The topsoil piles are now depicted as 20 square. The growth medium piles are now depicted as <br /> 20 feet in diameter. <br /> The overburden stockpile depicted have been revised on the Exhibit E—Mining Plan Map, <br /> Detail 1 to reflect scaled stockpiles.They represent a 5 feet 2 inch depth trench at a 1;1 slope <br /> (this holds to the 6 feet depth originally stated at 6.3.4(2),now removed and replaced with a <br /> statement of not to exceed 2000 cubic yards).This overburden stockpile footprint is calculated <br /> to be approximately the same size as the 25 x 35 feet dig area. The average thickness of <br /> replaced overburden is still shown in note 2 on Exhibit E—Reclamation Plan as being 6 feet. <br /> The area table on Exhibit E—Mining Plan Map, Detail 1 has been revised to show updated <br /> area calculations and also now includes the permit area road,topsoil and growth medium <br /> stockpiles. <br /> Page 7 of 8 <br />