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18-Left Ventilation Shaft Installation and 16-Right Stabilization Boreholes (TR09-66 and MRI1-253) -_TCC
<br /> contracted with Metcalf Archaeological Consultants, Inc. to complete an intensive Class III cultural resources
<br /> survey of the proposed 18-Left Ventilation Shaft Installation, in conjunction with the work previously discussed. A
<br /> separate survey addressed planned disturbance for the 16-Right Mine Stabilization Boreholes. The surveys covered
<br /> lands located in Sections 22 and 23, T5N, R87W. No previously recorded sites, isolated finds, or buried cultural
<br /> materials were found within the surveyed area. Survey results are presented in the Confidential Appendix, in
<br /> Exhibit 6S.
<br /> Sage Creek/Twentymile Overland Conveyor (MR11-254) - TC contracted with Metcalf Archaeological
<br /> Consultants to complete an intensive Class III cultural resources survey of a corridor for a proposed overland
<br /> conveyor, linking the Sage Creek Mine with the Twentymile Coal Handling Facilities. The survey covered portions
<br /> of Section 13, T5N, R87W, and Sections 18, 19, 20, 21, 28, 29, and 32, T5N, R86W, and incorporated a number of
<br /> areas that had been previously surveyed. The survey resulted in recordation of one historic road segment, five
<br /> previously recorded sites were revisited, and three isolated finds were documented. The historic road segment is
<br /> recommended as "non-eligible", due to historic alteration. One previously recorded site was reevaluated, and the
<br /> portion within the surveyed corridor is recommended as "non-contributing". Construction limits or testing are
<br /> recommended for a second previously recorded site. Survey results are presented in the Confidential Appendix, in
<br /> Exhibit 6T, Overland Conveyor(MRI 1-254)Cultural Resource Information, dated June 2011.
<br /> 15-Left Rock-Dust Installation, 16-Left Utility Borehole, and 5MN Borehole and Pipelines (TR11-77, TRII-
<br /> 78, MR14-283, MR15-288) -_TC contracted with Metcalf Archaeological Consultants, Inc. to complete intensive
<br /> Class 111 cultural resources surveys of the proposed 15LT Ventilation Installation, 16LT Utility Borehole and 5MN
<br /> Borehole and pipelines. The surveys covered lands located in Section 17, T5N, R86W, and Sections 23, 24, 25, 26
<br /> and 27, T5N, R87W. No previously recorded sites, isolated finds, or buried cultural materials were found within
<br /> the surveyed areas. Survey results are presented in the Confidential Appendix, in Exhibit 6T.
<br /> 2011-2012 WMD Exploration Program (MR11-256) -_TC contracted with Metcalf Archaeological Consultants,
<br /> Inc. to complete intensive Class III cultural resources surveys of the 7 potential exploration drillholes to be
<br /> completed in the WMD. The surveys covered the planned drill-pads located in Sections 26, 27, 34, and 35, T5N,
<br /> R87W. Some of the sites had been covered by previous cultural resource surveys. No previously recorded sites,
<br /> isolated finds, or buried cultural materials were found within the surveyed areas. Survey results are presented in the
<br /> Confidential Appendix, in Exhibit 6L.
<br /> 2012 WMD Exploration Program (MR12-261) -_TC contracted with Metcalf Archaeological Consultants, Inc. to
<br /> complete intensive Class III cultural resources surveys of the 5 potential exploration drillholes to be completed in
<br /> the WMD. The surveys covered the planned drill-pads located in Section 36, T5N, R87W. No previously recorded
<br /> sites, isolated finds, or buried cultural materials were found within the surveyed areas. Survey results are presented
<br /> in the Confidential Appendix, in Exhibit 6L.
<br /> EMD Water Monitoring Wells (MR13-267) -_TC contracted with Metcalf Archaeological Consultants, Inc. to
<br /> complete intensive Class III cultural resources surveys of 2 water monitoring well sites and the associated drill-pads
<br /> and to be completed in the EMD. The surveys covered the planned drill-pads and access from existing ranch roads
<br /> located in Section 9, T5N, R86W. No previously recorded sites, isolated finds, or buried cultural materials were
<br /> found within the surveyed areas. Survey results are presented in the Confidential Appendix, in Exhibit 6L.
<br /> WCR Coal Coreholes (MR13-269, MR13-272, MR14-275, MR14-276, MR14-277, MR14-278, MR14-280,
<br /> MR14-281, MR15-287, MR15-289) - TC contracted with Metcalf Archaeological Consultants, Inc. to complete
<br /> intensive Class III cultural resources surveys of 38 potential coreholes and offset drilling zones to be completed in
<br /> the EMD and NMD. The surveys covered the planned drill-pads and associated access located in Sections 8, 10,
<br /> 11, 13, 14, 15, 16, 17, 21, and 22, T5N, R86W. Survey results are presented in the Confidential Appendix, in
<br /> Exhibit 6L.
<br /> WCR Development and Mining (PR14-10, PR15-11, MR15-289) -Most of the Wolf Creek Reserve mining area
<br /> underlies areas previously undermined by TC's historic and ongoing mining operations in the Wadge Coal Seam in
<br /> the Eastern and Northern Mining Districts. Baseline studies related to potential surface effects for these previously
<br /> mined areas were completed and are included in the PAP. The proposed WCR development and
<br /> PR 14-10 2.04-9.1 03/18/16
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