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Trapper Mine accomplishes backfilling of the mined pits primarily with draglines, using overburden <br /> and inter-burden material from a cut to backfill a previous adjacent cut. Other equipment such as <br /> bulldozers, scrapers, backhoes, front-end loaders, and trucks are also used to backfill areas. Once <br /> backfilled, bulldozers and/or graders grade the area to achieve approximate original contour. The <br /> approved reclamation plan for the Trapper Mine calls for backfilling and grading mine excavations and <br /> shaping the backfilled areas to the approximate configurations shown on the Postmining Topography <br /> Map, Map MJ2 in the permit. Graded areas are to blend into the surrounding adjacent areas. Every <br /> year TMI submits to the Division their Annual Reclamation Report(ARR)revising Appendix W of the <br /> permit. Each ARR includes a map showing actual post-mining topography from the previous year. <br /> After final backfilling and <br /> grading, topsoil is required to be <br /> placed on the spoil to a depth of <br /> 12 inches on rangeland. A <br /> variation of +/- 2 inches is <br /> allowed due to compaction and <br /> operational considerations as per <br /> TMI's permit(page 4-256). TMI <br /> verifies topsoil replacement <br /> thickness by scraper load counts. <br /> DRMS also verifies all topsoil <br /> application for permit compliance <br /> as soon as possible after <br /> completion. <br /> Photo 2: Topsoil pile in D Pit waiting to be spread, <br /> photo July 2023. <br /> Photo 3: Topsoiling activities in D Pit,photo September 2023. <br /> DRMS has not yet verified topsoil depths for the SL25 parcels as topsoil was partially placed in 2023. <br /> An annual cover crop of triticale was aerially seeded in late autumn of 2023 to hold the recently worked, <br /> loose soils over the winter and spring runoff seasons. Emerging vegetation was noted at the time of <br /> inspection. Permanent seed mix is scheduled for seeding in the autumn of 2024. <br /> Permit Number C1981010 Prepared by: R.Reilley <br /> SL25 Page 7 of 21 <br />