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L-4 <br /> o Placement of growth medium and revegetation across full extent(54 acres)of the reclaimed <br /> area. <br /> o Placement of silt fencing and/or other erosion controls at areas to be identified upon <br /> completion of reclamation activities. <br /> • Terminal Mine Pit,Plant Waste Pile, and Remaining Haul Roads <br /> To include the following: <br /> o Terminal pit closure(on assumed basis of 132-acre terminal pit maximum areal extent)via <br /> placement of growth medium (in part) sourced from the TS-1 long-term growth medium <br /> stockpile. <br /> o Final slope reduction (to 5H:1 V) of plant waste stockpile areas not previously reclaimed <br /> followed by growth medium placement. <br /> o Ripping and scarification of remaining portions of South and East Haul Roads, followed <br /> by growth medium placement. <br /> o Revegetation of(all of the above) areas, to include drill seeding, mulch application, and <br /> crimping/discing. <br /> o Placement of silt fencing and/or other erosion controls at areas to be identified upon <br /> completion of reclamation activities <br /> • Revegetation Monitoring and Maintenance Period(5 Years) <br /> To include the following: <br /> o For all areas associated with final site closure, CSC will initiate a five-year post-closure <br /> monitoring and maintenance period. CSC has included in Year 1 (PC-1)those areas that <br /> remain subject to (but are already in) the respective five-year period(s). Thus, Year 1 of <br /> the post-closure period will include the 305-acre final site closure area (54-acre <br /> plant/facilities area plus 251-acre terminal pit/other areas), plus those areas revegetated <br /> Keenesburg No. 2 Mine_112 Reclamation Operation—November 22, 2019 <br />