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Sedgwick County Road and Bridge Gravel Pit Page 8 <br /> 112(c) Operation Reclamation Permit February 25, 2024 <br /> will be validated based on pre-construction site photographs and those of post-closure <br /> photographic records and written visual inspections carried out by the owner or its designated <br /> representative.At the completion of the vegetative cover establishment and at such time that the <br /> 70%vegetation criterion can validated (per Section F), a final set of photographic records will be <br /> collected for future reference and record purposes. Once these conditions have been met, a letter <br /> of project completion will be provide to CDPHE as a final record of permit compliance. <br /> Final Grading will be done so that no slopes are greater than 3:1, stormwater runoff is reasonably <br /> controlled,and that the land is traversable by livestock.This will ensure that the land is appropriate <br /> for rangeland uses. <br /> Any drill or auger holes will be filled with available gravel or soil materials from mining. <br /> 5.2 Water Diversions and Impoundments <br /> After all mining has ceased,the three siltation ponds in the mining plan will be filled with 2.5 feet <br /> of compacted backfill from overburden stockpiles and reclaimed with 6-12 inches of topsoil and <br /> revegetated according to this plan. Backfilling shall be done such that there are no slopes greater <br /> than 3:1. <br /> 5.3 Soil Management <br /> Any overburden stockpiles will be backfilled into mining pits. Backfill will be compacted for <br /> stability. Existing stockpiles of topsoil from mining will be used to cover mined areas at final <br /> grade. Topsoil will be placed in a thickness of 6-12 inches. Compaction of topsoil cover shall be <br /> avoided as much as feasible. <br /> 5.4 Reclamation Phases <br /> There will be 4 phases of reclamation that coincide with the completion of each mining phase. <br /> Phase 1 2031-2035 <br /> Phase 2 2038-2042 <br /> Phase 3 2045-2049 <br /> Z:IProjects1Sedgwick Counry12023 Gravel Pa PermrttinglPermit AEC <br />