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3. Topsoil Replacement Thickness <br />As can be seen in the Phase 2 topsoil thickness samples table below, topsoil was placed at a <br />sufficient thickness in both Phase 2 areas. The average thickness in Area 2 is only lower than <br />the approved thickness due to sample point TS51. TS51 is located just south of BB Road <br />(Map R-1). Topsoil is always thinner near roads, due to the presence of the outside slopes of <br />the underlying road bed spreading out onto adjoining land. Therefore, point TS51 should be <br />removed from the calculation of the average topsoil thickness for Area 2. Without TS51, the <br />average topsoil thickness over Area 2 is 43 inches. This satisfies the minimum required post- <br />mine topsoil thickness of 37 inches for this area. <br />PhneP 7 Area - Tnnenil Th;nL-"aee C...., 1- T..1.1.1 <br />Required Topsoil Thickness Sample Point Thickness (ft) Thickness (in) <br />in <br />Phase 2 Area 1 <br />23-39 TS54 4.0 48 <br />23-39 TS58 3.0 36 <br />23-39 TS62 3.1 37 <br />23-39 TS63 3.6 43 <br /> Average 3.4 41 <br />Phase 2 Area 2 <br />37-49 TS49 3.3 40 <br />37-49 TS48+150N2 2.9 35 <br />37-49 TS50 4.0 48 <br />37-49 TS51 0.9 11 <br />37-49 TS69 4.0 48 <br /> Average 3.4 40 <br /> Average (w/o <br />TS51) 3.6 43 <br />'All sample points can be seen on Map R-1. <br />2TS48+150N was a sample point taken in July 2010 150 feet north of the already sampled point TS48. This was <br />to provide another sample point for the Phase 2 Area 2 topsoil measuring. <br />SL-12 29MAR1l.wpd 27