2016-11-23_PERMIT FILE - C1981008A (2)

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At the west end of the Morgan property, the Bench 1 material from Cut -99B will be stockpiled in non-topsoiled areas of the Morgan property to the east of the mining. This is to ensure that all Bench 1 material excavated from the Morgan property is also backfilled onto the Morgan property. Since the mining cuts on the west end of the Morgan property are the end of mining on the Morgan property, the Bench 1 material from Cut -99B will have to be split between Cut -99B and Cut -98B. This can be seen on Attachment 2.05.4(2)(c)-7. Special Handling of Bench 1 Overburden on Morgan Prime Farmland Per the request of the Morgan Family and Dave Berry from the DRMS, WFC will special handle "all" the weathered sandstone and shale strata's (Bench 1 spoil) in the 0- 40 feet range of the undisturbed surface back onto the Morgan property. This Bench 1 Spoil will be placed on the upper portion of the finished graded backfill, just under the topsoil lay down zone. This special handling was started June 2010 and will continue just through the Morgan property. Thin and Thick Overburden. The New Horizon 2 permit area does not meet the requirements of either the thick or thin overburden as shown by the following calculations: 103.96' maximum stripping depth 79.93' average overburden 7.94' Combined Upper and Lower Dakota At the average stripping depth 79.93' overburden + 7.78' coal 87.71' material excavated at 15% Swell 1.15 x (79.93) = 91.92 material replaced 91.92'/87.71' = 1.048 of the initial thickness Therefore, the 0.8 requirement for thin overburden and the 1.2 requirement for thick overburden are not met. At the maximum stripping depth 96.02' overburden + 7.94' coal 103.96' material excavated Revised January 2016 (TR -70) 2.05.4(2)(c)-4