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development or for subsequent access to these sites, TCC retained the flexibility to windrow topsoil from the access <br />routes, as appropriate, to assure protection of the topsoil resource. <br />• Surface disturbance for each site is minimal and consists of an area encompassing approximately 100 x <br />Topsoil from the drill -pad and mud -pit areas was salvaged and stockpiled adjacent to each drill -site. Appro <br />26 inches of the Binco silty clay loam was salvaged, based upon the existing soils mapping for each site. Following <br />topsoil salvage, each drill -site was leveled and mud pits developed. Site drainage was configured to contain surface <br />runoff from the site within the mud -pit areas. Secondary sediment control measures consisting of silt fences or hay <br />bales were utilized as necessary to minimize sediment transport from each site. For both the shaft and borehole, the <br />shaft collar and casing extend above ground elevation. Protective shelters /covers of wood frame and/or metal <br />construction were constructed on concrete foundations over the shaft and borehole casing. Following completion of <br />drilling activities, the mud pits at each site, once suitably dry, were backfilled. The sites were regraded, topsoil <br />redistributed, and the areas seeded with the appropriate seed mix at the first appropriate seeding opportunity. <br />Given that the Barricade Chamber is no longer needed for mine safety purposes (function is now addressed by mine <br />escapeway plans utilizing fresh -air returns and escape elevators), the Barricade Chamber and associated shaft have <br />been sealed, with bulkheads at the top and bottom of the shaft, are now used for mine water storage, and the protective <br />shelters have been demolished, with the foundations remaining in- place. The shaft collar and borehole casings are <br />now covered by locked steel caps, as a security and safety measure. Existing mine water transfer pipelines connect to <br />the Barricade Chamber/FCM -2 boreholes from the Fish Creek Water Treatment Facility and l ORT Dewatering Wells, <br />allowing water to be transferred from these locations to the mine water system. An additional transfer pipeline, <br />approximately 8,560 feet long, will be extended from the Barricade Chamber/FCM -2 boreholes to the new Fish <br />Creek/Area 1 Pit Transfer Pipeline, to allow water to be transferred directly from this location to the Area 1 Pit Mine <br />Water Storage Reservoir. The pipeline will be laid in existing pipeline and road corridors to minimize new <br />disturbance, and will be welded 12 -inch HDPE pipe, buried approximately 5 feet deep, connecting to the Fish <br />Creek/Area 1 Pit Transfer Pipeline at a CMP or concrete culvert manhole enclosing the pipeline control valves. For <br />• all pipeline construction, soil material will be removed and temporarily windrowed on one side of the trench, with <br />trenched material placed to the other side. Once the pipeline is placed, properly bedded, connected, and leak tested, <br />trenched material will be backfilled and compacted, and soil material will be replaced over the excavation and <br />reseeded. <br />When the Barricade Charnber/FCM -2 facilities are no longer needed to support ongoing or future mining operations, <br />the shaft and borehole will be plugged and sealed, the shaft collar and borehole casing will be demolished or cut -off a <br />minimum of three feet below the ground surface, the hole locations will be marked, remaining foundations will be <br />removed, and the disturbed areas will be regraded to blend with the surrounding terrain, stockpiled topsoil will be <br />replaced, and the areas will be reseeded. It is anticipated that when the pipeline is no longer needed to support <br />mining and related operations, it will be plugged below grade and abandoned in- place. <br />TORT Dewatering Wells (Eastern Mining District) <br />The IORT dewatering system (original) consists of two primary components: 1) Dewatering wells and control <br />building (existing), and 2) Treatment facility (future). The initial dewatering well was drilled to connect into the <br />sump developed off the 10 -Right entry. Please refer to Map 23, Mine Plan, for the location of s <br />the ump. A light - <br />duty road was constructed to the site, beginning at the proposed treatment facility and terminating at the borehole. <br />The beginning 1,600 feet of this road required new construction, while the remainder of the road involved <br />upgrading an existing ranch road. The location of the access road is shown on Maps 17 and 18. As shown on the <br />maps, the overall road length is approximately 4,600 feet. This location of the initial 1,600 feet of the road differs <br />slightly from the original proposal to improve visibility and safety at the road entrance. <br />During construction of the road, approximately 6,815 Cy of topsoil was windrowed to the side of the road. This <br />• volume is based on constructing a road 4,600 feet long, 20 feet wide and salvaging topsoil to a depth of 24 inches. <br />The topsoil was stockpiled adjacent to or windrowed to the side of the road. The stockpiled topsoil was seeded <br />with the pastureland seed mixture applied at the appropriate rate. The fmished width of the road is approximately <br />TR09 -70 2.05 -50.3 11/16/09 <br />