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<br /> <br /> <br /> <br />PR-04, Colowyo Coal Mine C1981-019 12 August 2016 <br /> <br />on August 7, 2014, and issued on August 22, 2014. <br /> <br />TR-104: Technical Revision No. 104 was received on September 25, 2014 and found complete <br />on September 29, 2014. TR-104 was proposed to improve the long-term stability of East Taylor <br />Ditch, Colowyo proposed to construct a two acre-foot impoundment in the channel of the ditch. <br />TR-104 was approved on March 6, 2015, and issued on March 31, 2015. <br /> <br />TR-105: Technical Revision No. 105 was received on April 8, 2015 and found complete on April <br />20, 2015. TR-105 revised the approved post-mining topography and associated post-mining <br />drainage channels in the East Pit, West Pit, and South Taylor Pit. No changes to the permitted, <br />affected, or disturbed acreages were proposed. TR-105 was approved on September 9, 2015, and <br />issued on September 22, 2015. <br /> <br />TR-106: Technical Revision No. 106 was received on June 25, 2015 and found complete on July <br />3, 2015. TR-106 redesigned the access and haul road for the Collom Project. TR-106 was <br />approved on October 6, 2015, and issued on October 20, 2015. <br /> <br />TR-107: Technical Revision No. 107 was received on June 13, 2016 and found complete on June <br />23, 2016. TR-107 proposes topsoil haulage and a small area exemption for an area being <br />reclaimed that contained the Lower Administration building near Colowyo's entrance to the <br />mine. TR-107 is in the adequacy process. <br /> <br />3.1.7 Status of Minor Revisions <br /> <br />This section identifies Minor Revisions (MRs) processed since the issuance of Permit Renewal <br />Number 6, May 20, 2013. <br /> <br />MR-126: Minor Revision No. 126 was submitted on May 24, 2013. MR-126 was considered <br />complete on June 3, 2013, and withdrawn on October 3, 2013. This minor revision provided a <br />cumulative bond schedule. <br /> <br />MR-127: Minor Revision No. 127 was submitted on October 2, 2013. MR-127 was considered <br />complete on October 10, 2013, and approved / issued on October 21, 2013. This minor revision <br />added Exhibit 23 to the PAP and proposed new in-pit drilling locations within the South Taylor <br />Pit. <br /> <br />MR-128: Minor Revision No. 128 was submitted on October 11, 2013. MR-128 was considered <br />complete on October 21, 2013, and approved / issued on October 30, 2013. The minor revision <br />revised Exhibit 2 with the list of individuals with current and historical site control of the Colowyo <br />Mine.