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6.4.5 EXHIBIT E—Reclamation Plan <br /> General Comments <br /> The original land use of the property in question was rangeland for domestic livestock. The goal of the <br /> reclamation plan is to return the land to graze land use by backfilling all highwalls to result in final land <br /> gradient of no greater than 3:1 (H:V)final grade and placing planting media of no less than one foot <br /> thickness over the green shale unit underlying the gravel deposit. The land interior to the pit margins <br /> will be graded to drain west and south towards the sediment pond structure located near the south <br /> border of the permit area in the original mining area. Given the current mine operator's experience <br /> with this deposit over the past 2 decades, it is apparent that there will be no shortage of planting <br /> media,soil and sub-soil that can be used for backfilling,final grading,and planting media. The operator <br /> will isolate and retain soils at or near the surface for use at or near the surface of reclaimed areas. <br /> However, a topsoil horizon cannot be easily discerned at most locations. While the operator commits to <br /> no less than 12 inches of planting medium be placed over the green shale unit underlying the gravel <br /> deposit,final grades will be noted as"not to exceed" 3:1 or 4:1 and may reflect lower gradients if <br /> necessary to re-apply all soils and sub-soils removed prior to gravel extraction. Lower final grades(4:1), <br /> (H:V),or less,will be planned for the Osborn tract(Phase 1). 3:1(H:V)or less are planned for the pit <br /> margins in Phases 2,3,and 4. All other areas including the N-S power line ROW(3:1 from pole base to <br /> pit floor), will be graded to result in surface flow west and south towards the sediment control ponds. <br /> Drainage to the west will be maintained between the power pole locations so to not impede surface <br /> flow to the sediment control ponds. <br /> Rule 3.1.3 Time Limit and Phased Reclamation <br /> The mining of the proposed 40 acres will take over four phases of approximately five year intervals, <br /> beginning in 2020 and estimated completion of reclamation circa 2045. <br /> Rule 3.1.5 Reclamation Measures—Materials Handling <br /> 1) Final grading will be appropriate to the final land use for open rangeland. Reclamation planned <br /> will include elimination of highwalls at pit margins,covering all areas with no less than 12"of <br /> planting media, broad cast seeding and mulching with wood fiber mulch material to promote a <br /> sustainable and diverse grass land establishment. Backfilling of highwalls will result in no final <br /> slopes greater than 4:1 (H:V) in the Osborn tract and no greater than 3:1 (H:V)in the remaining <br /> areas(33 acres) of the proposed expanded mining area. <br />