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11, 13, 14, 15, 16, 17, 21, and 22, TSN, 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 mining activities will
<br />result in mining and potential surface subsidence effects which extend beyond the eastern limits of the previously
<br />surveyed and mined areas. TC has contracted with Metcalf Archaeological Consultants, Inc. to complete intensive
<br />Class III cultural resources surveys for any areas subject to potential surface subsidence effects, which have not
<br />already been surveyed. Generally, these surveys covered limited additional areas in Sections 10, 12, 13, and 14,
<br />TSN, R86W. The surveys resulted in identification of two new sites and one previously recorded site which could
<br />potentially be affected by mining -related subsidence. Metcalf Archaeological Consultants, Inc. reviewed the
<br />subsidence evaluations and profiles for the areas associated with the identified sites, and provided a letter
<br />concluding that based on the very limited projected changes in ground elevation and gradient, the potential to
<br />impact any buried cultural materials would be negligible. Review by both the CDRMS and SHPO resulted in
<br />concurrence with this conclusion. Survey results are presented in the Confidential Appendix, in Exhibit 6L.
<br />13LT Outby Utility Borehole (MR15-291, MR292) -_TC contracted with Metcalf Archaeological Consultants,
<br />Inc. to complete intensive Class III cultural resources surveys of the proposed 13LT Outby Utility Borehole. The
<br />surveys covered lands located in Section 20, TSN, R86W. Due to adverse ground conditions, the cultural resource
<br />survey for the 13LT Outby Utility Borehole was conducted as an auger survey under study plans reviewed and
<br />approved by the SHPO. The approved study plan involved augering to a depth of approximately 1.Om on a 15m
<br />grid for the pad area, and on two parallel lines spaced 15m apart along the access corridor. This effectively resulted
<br />in a 30m wide inventory area for the access, and a 135m x 135m inventory area for the pad disturbance. The field
<br />archaeology crew looked for staining and artifacts during the augering, screened the excavated material, and
<br />prepare detailed field notes on stratigraphy, soil character, and any artifacts found. The 13LT Outby Borehole
<br />Study Plan is presented in the Confidential Appendix, in Exhibit 6T. The field work did not identify any cultural
<br />resources and resulted in a finding of no adverse effect, based on the preliminary survey report. Both the
<br />preliminary and final survey reports are provided for reference in Exhibit 6T.
<br />9 -East Utility Borehole Installation (MR16-296) — In conjunction with permitting for the Wolf Creek Reserve
<br />development and mining (PR15-11) Metcalf Archaeological Consultants, Inc. completed intensive Class III cultural
<br />resources surveys for any areas subject to potential surface subsidence effects, which have not already been
<br />surveyed, as well as any related areas of additional surface disturbance, including utility boreholes. Generally,
<br />these surveys covered limited additional areas in Sections 10, 11, 12, 13, and 14, TSN, R86W. The proposed utility
<br />borehole pad areas (Options 1-2) and roads would not impact any identified cultural resource sites. Survey results
<br />are presented in the Confidential Appendix, in Exhibit 6L
<br />RULE 2.04.5 - GENERAL DESCRIPTION OF HYDROLOGY AND GEOLOGY
<br />Each application shall contain a description and map, prepared in accordance with 2. 10, of the geology, surface and
<br />ground water systems, including water quality quantity, of all lands within the proposed permit area, the
<br />adjacent area, and the general area. The description shall include information on the characteristics of all surface
<br />and ground waters within the general area, and any water which will flow into or receive discharges of water from
<br />the general area. The description shall be prepared according to 2.04.5 and 2.04.7, and conform to the following_
<br />(a) Information on surface and groundwater systems including water quality, water quantity
<br />geology related to the hydrology of areas outside the permit area and within the general area shall be provided by the
<br />Division, to the extent that this data is available from an appropriate Federal or State agency.
<br />(b) If this information is not available from those agencies, the applicant may gather and submit
<br />this information to the Division as part of the permit application.
<br />RN 17-07 2.04-9.3 06/13/17
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