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440 PH. 605-342-7224 <br />NG <br />DDRESS: P.O. <br />ox 440 <br />PID <br />N�R PHYSICALAADDRESS: 34011 UNIVERSAL RADR RAPID SD 57709 <br />®-D CITY, SD 5077022 Fx. 605-342-6979 <br />& Sons, Inc. <br />May 21, 2015 <br />CO DRMS <br />Attn: Michael Cunningham <br />1313 Sherman St., Room 215 <br />> Denver, CO 80203 <br />Re: Pete Lien & Sons, Inc.: Owl Canyon Quarry; DRMS File No. M-1977-302• Reclamation <br />Activities Clarification <br />As requested, please see the following clarification of reclamation activities at the Owl Canyon <br />Quarry. As operations move along the highwall, the highwall is blasted and left that way for future <br />N reclamation once active mining in that area has moved along. This material is then simply pushed <br />down and out from the top to create the hogback formations we mentioned in earlier <br />correspondence. A D9N dozer or similar equipment is used to push material 100 to 200 feet or <br />so for this activity. Additional overburden is placed to the mining block directly adjacent to the <br />current mining area, thus no stockpiles of overburden or hauling is required. No trucks are <br />' required for the load/haul overburden reclamation Task (Task #001). The fines and crushed <br />sandstone (Tasks #002 and #003) are separated out during the mining and handling process and <br />is and would be stored adjacent to the mining block to be reclaimed next. This would have a haul <br />.ti distance of 1000' at most. This is the maximum distance across the mining blocks of where the <br />piles are located if not immediately used on top of backfilled areas of the concurrent reclamation. <br />The average haul distance would be closer to 500'. <br />If there are any questions regarding this clarification or if additional information is required, <br />please feel free to contact me at (605) 939-2690 or by email at CBeck@petelien.com. <br />I ly, <br />Clinton D. Beck <br />Environmental Coordinator <br />Pete Lien & Sons, Inc. <br />