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approved. The use of highwall mining at the Colowyo Mine has extended the economic <br />recovery of coal resources beyond the economic limits of deep-pit operations. <br /> <br />Section II Revisions to Permit C-1981-019 <br /> <br />Since the approval of Permit Renewal No. 7 (August 14, 2018), the following minor <br />revisions (MR) and technical revisions (TR) have been received for Permit No. C-1981- <br />019. <br /> <br />Minor Revision 188 MR-188 updated Map 13C Sheet 1. The revision was received on <br />June 29, 2018, deemed complete on July 9, 2018 and approved on <br />July 10, 2018. <br /> <br />Minor Revision 189 MR-189 incorporated a cultural resource discovery report and <br />Historic Properties Treatment Plan to mitigate the site included in the <br />discovery report. The revision was received on July 11, 2018, <br />deemed complete on July 11, 2018 and approved on July 11, 2018. <br /> <br />Minor Revision 190 MR-190 updated Exhibit 3 with new certificate of liability <br />insurance and Exhibit 15 with newly issued air permits for the <br />Colowyo Mine. The revision was received on July 31, 2018, deemed <br />complete on August 3, 2018 and approved on August 3, 2018. <br /> <br />Minor Revision 191 MR-191 incorporated Colorado Discharge Permit No. CO0045161 <br />into the Colowyo PAP and satisfied Stipulation 23. The revision was <br />received on September 7, 2018, deemed complete on September 14, <br />2018 and approved on September 14, 2018. <br /> <br />Minor Revision 192 MR-192 approved the installation of supplemental lighting at <br />critical points along the Collom Haul Road to improve wildlife <br />visibility and to minimize wildlife/vehicle collisions. The revision <br />was received on September 24, 2018, deemed complete on October 4, <br />2018 and approved on October 12, 2018. <br /> <br />Minor Revision 193 MR-193 documented an approximately 22-acre wildland fire that <br />occurred on the ridge line between Wilson and Taylor Creeks, within <br />the permit boundary, on September 9, 2018. The revision was <br />received on September 27, 2018, deemed complete on October 5, <br />2018 and approved on October 15, 2018. <br /> <br />Minor Revision 194 MR-194 updated Map 1 and Exhibit 1 with revised surface <br />ownership adjacent to the permit boundary. The revision was <br />received on December 4, 2018, deemed incomplete on December 6, <br />2018, deemed complete on December 7, 2018 and approved on <br />December 7, 2018. <br /> <br />Colowyo Mine Midterm Review No. 8 <br />Permit No. C-1981-019 May 5, 2020 <br /> 3 <br /> <br />