2012-06-20_PERMIT FILE - C2010089 (59)

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Introduction Section 2.05.4(2)(d) Topsoil Redistribution This section outlines WFC's plan for removal, storage and redistribution of topsoil, subsoils and other material, to meet the requirement of Section 2.05.3(5), 2.05.4(2)(d) and 4.06 for the New Horizon North (NHN) Mine permit application. The plan addresses those reclamation activities that are conducted during and immediately after backfilling and grading (Section 2.05.4(2)(c), but prior to revegetation (Section 2.05.4(2)(e)). The objectives of the plan are to reconstruct plant growth and aquifer mediums that are consistent with the post- mining land uses. The plan objectives are achieved by insuring that a sufficient thickness of suitable backfilled weathered overburden material is replaced as rooting medium subsoil over the unoxidized overburden and below the respread topsoil. On average there will be approximately three to four feet of suitable weathered "spoil material, including the available topsoil, that will be replaced onto all regraded spoil areas prior to the commencement of revegetation activities. The weathered overburden material which will be respread on top of the regraded spoil material and prior to topsoil replacement is called "Bench 1 Surface Spoil or free dig zone material" in the existing NH2 Mine Permit and will be called the same thing as this practice applies to the NHN Mine. The plan presents an account of the plant growth material and aquifer medium requirements based upon current and projected disturbance acreage and plant growth material and aquifer medium availability based on detailed baseline topsoil inventory mapping and overburden assessments. The plan also describes the procedural aspects of removal, storage, redistribution, and testing of topsoil materials. Overburden/ Spoil Handling Plan New Horizon North Mine Overburden and Interburden Characteristics Section 2.05.4(2)(d) Page 1 January 2012