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2.05.4(2)(c) Backfilling and Grading Plan <br />All backfilling and grading requirements have been completed at the Carbon Junction <br />Mine. <br />2.05.4(2)(d) Soil Replacement <br />Soil resources were redistributed contemporaneously following backfilling. Topsoil was <br />redistributed to a minimum depth of twelve (12) inches over all reclaimed areas. <br />Redistributed topsoil was protected from erosion (wind and water) by crimping in straw, <br />or an approved substitute mulch, immediately after it was redistributed. Re-topsoiled <br />areas were revegetated immediately during the normal planting season following the <br />redistribution of the soil. <br />2.05.4(2)(e) Revegetation <br />The initial permitting of the Carbon Junction Mine envisioned reclaiming the coal mine <br />surface disturbances to the post -miming land uses of wildlife habitat and agriculture <br />(which were the pre -mining land uses). <br />With the approval of Technical Revision 5, the approved post -mining land uses of the <br />Carbon Junction Mine were changed from wildlife habitat and cropland to industrial and <br />commercial, recreation, and residential with accompanying changes to the revegetation <br />success criteria, consistent with anticipated development of the post -mining area within <br />the Carbon Junction Mine permit area. <br />The post -mining land uses have been revised under Permit Revision 01 to reflect the <br />acknowledged current land use of the coal permit and adjacent areas, dryland pasture. <br />With acceptance of the primary land use of dryland pasture, OEI and CDRMS selected a <br />reference area representative of the dryland pasture post -mining land use and developed <br />measures to establish revegetation success criteria for the reclaimed mine. These <br />measures are described in further detail in the Revegetation Success Criteria section. <br />Final revegetation of coal mine surface disturbance took place under the former post - <br />mining land uses of industrial and commercial, recreation, and residential. These land <br />uses only require vegetation to meet an erosion control standard to be successfully <br />reclaimed. Subsequently, a concern was raised as to whether the revegetation would <br />meet the requirements (vegetation cover, herbaceous production, species composition) of <br />the dryland pasture post -mining land use. <br />Final revegetation of the coal mine surface disturbances employed the same topsoil <br />replacement requirements, same seed mix (minus woody plants per the landowners <br />request), and same cultural treatments (mulch, tilling, weed control and others) that were <br />specified under the revegetation plan for the original post -mining land use of wildlife <br />habitat. For this reason, the final revegetation measures undertaken for the Carbon <br />Junction Mine should be more than sufficient to adequately meet the requirements for the <br />dryland pasture post -mining land use approved under Permit Revision 01. Vegetation <br />Abridged Permit Document 5-8 Permit Revision PROI 9/2014 <br />