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➢ Ongoing construction of support infrastructure for the Wolf Creek Reserve (Additional 9 -East Utility
<br />Boreholes)
<br />➢ Completion of feasibility evaluation and preliminary design for passive water treatment system, and
<br />ongoing permitting work for future Wolf Creek mine dewatering
<br />➢ Completed remedial measures and repair of localized slope instability and surficial slumps on north side
<br />of truck loadout pad and north side of overland conveyor, east of train loadout
<br />➢ Several sedimentation ponds were dredged to remove accumulated sediment as part of our ongoing
<br />drainage maintenance program
<br />➢ Completed replacement of fluorescent lights with LED lighting to reduce energy use, and recycling of
<br />used "green -tip" fluorescent bulbs
<br />➢ Drainage basin level water quality and aquatic life study to support water discharge permit renewals and
<br />future discharge permitting
<br />➢ Federal Mine Plan Approval (05%30/17) for mining activities in the Wolf Creek Reserve BLM Lease
<br />Modification area (PRI 5-11)
<br />➢ Submitted Lease by Application (05/30/17) to BLM for additional federal reserves within the Wolf
<br />Creek Reserve mining area (public scoping completed and contractor is working on the Environmental
<br />Assessment)
<br />Under our ongoing noxious weed control program, TC contracted with Osborne Industries to complete noxious
<br />weed control spraying for both active and bond -released areas (approximately 100 acres), consistent with the
<br />approved Noxious Weed Control Plan (MR06-206). Areas sprayed for weeds are shown on the 2017 Annual
<br />Reclamation Map, and/or listed as follows (spot or area spraying, as appropriate):
<br />• Substations electrical installations, propane storage areas, and surface conveyors (bare -ground
<br />spraying to address combustion hazard per MSHA)
<br />• Both sides (approximately 30 to 40 feet) of facility roads
<br />• Soil stockpiles
<br />• Facility pad areas (e.g. 9RT, l ORT, SMN, 6MN, 13LT, Fish Creek Borehole, 16LT, 18LT)
<br />• Select areas on CRDA and associated soil/cover material stockpiles
<br />• Pond embankments and perimeters
<br />The spring spraying program (June) focused on spot or area spraying for control of white -top (hoary cress),
<br />houndstongue, and knapweed, using Telar, Milestone, and Liberate. The fall spraying program (August -
<br />September) focused on control of thistle, any residual weeds, and toadflax, which had previously been found on
<br />the site only as small, isolated occurrences, using 2,413 in combination with Tordon, Telar, and Milestone.
<br />Spraying was also conducted during the spring, within and around electrical installations, conveyors, and
<br />propane storage areas using Perspective, Esplanade, and Buccaneer to eliminate all vegetation, as a fire -safety
<br />and MSHA consideration. As part of our ongoing land management programs, TC conducted managed
<br />livestock grazing activities (approximately 2,000 steers) on the bond -released areas.
<br />There are several areas on the attached "2017 Annual Reclamation Report Disturbed Acreage" summary that are
<br />identified as "Reclaimed". These areas have previously been regraded and stabilized with vegetation, however,
<br />TC has not pursued bond release for these areas due to the potential for re -disturbance in conjunction with
<br />required access and site maintenance activities.
<br />Permit approvals during 2017 resulted in a net increase in the calculated reclamation liability and surety
<br />coverage of approximately $55,367 to a total of $10,135,038 at year-end, summarized as follows:
<br />Permit Renewal RN17-07 (As part of the Permit Renewal review process, the CDRMS will recalculate the
<br />reclamation liability, which may result in an adjustment in the bond)
<br />TRI 7-87, Sandstone Sub Thickener Underflow Borehole and Pipeline (+$6,798)
<br />TRI 7-88, SWMD\WMD Thickener Underflow Boreholes, Pump Booster Station, and Pipelines (+$31,839)
<br />MR17-303, Sandstone Substation Test Hole (+4,583)
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