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18 -Left Ventilation Shaft Installation and 16-Ri2ht Stabilization Boreholes (TR09-66 and MR11-253) -_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 (MRI1-254)Cultural Resource Information, dated June 2011.
<br />15 -Left Rock -Dust Installation, 16 -Left Utility Borehole, and 5MN Borehole and Pipelines (TRlI-77, TR11-
<br />78, MR14-283, MR15-288) -_TC contracted with Metcalf Archaeological Consultants, Inc. to complete intensive
<br />Class III 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 />compiete 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, 15-1 1 2.04-9.1 02,'01 lo
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