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Minor Revision 144 - MR -144 incorporated the addition of Topsoil Stockpile 16C. The <br />revision was received on September 14, 2015, deemed complete on <br />September 15, 2015 and approved on September 15, 2015. <br />Minor Revision 145 - MR -145 incorporated a coal stockpile within the West Pit. The <br />revision was received on September 29, 2015, deemed complete on <br />October 9, 2015 and approved on October 20, 2015. <br />Minor Revision 146 - MR -146 incorporated steam buffer zone variances for historical <br />and pre-existing mine related structures in Taylor Creek, Good <br />Spring Creek and the West Fork of Good Spring Creek. The revision <br />was received on October 7, 2015, deemed complete on October 16, <br />2015 and approved on November 16, 2015. <br />Minor Revision 147 - MR -147 incorporated adjustments to ground clearance under <br />sections of power lines. The revision was received on October 9, <br />2015, deemed complete on October 19, 2015 and approved on <br />October 26, 2015. <br />Minor Revision 148 - MR -148 incorporated as -built designs for three stock ponds <br />constructed in the West Pit reclamation. The revision was received <br />on December 21, 2015, deemed complete on December 21, 2015 and <br />approved on January 11, 2016. <br />Minor Revision 149 - MR -149 incorporated a cumulative bond schedule for the <br />construction of the Collom haul road. The revision was received on <br />January 4, 2016, deemed complete on January 12, 2016 and approved <br />on February 11, 2016. <br />Minor Revision 150 - MR -150 incorporated geotechnical drilling within the footprint of <br />the Collom facility area and haul road. The revision was received on <br />January 12, 2016, deemed complete on January 22, 2016 and <br />approved on February 11, 2016. <br />Technical Revision 95 - TR -95 incorporated changes to the hydrologic curve number <br />associated with reclaimed mined lands Exhibit 7 in the Colowyo <br />Mine PAP. The revision was received on April 24, 2012, deemed <br />complete on May 4, 2012 and approved on May 13, 2013. <br />Technical Revision 96 - TR -96 was withdrawn. <br />Technical Revision 97 - TR -97 incorporated changes to channel linings for ditches in the <br />East and West Pit areas and updated related SEDCAD modeling. The <br />revision was received on December 21, 2012, deemed complete on <br />December 14, 2012 and approved on May 22, 2013. <br />Colowyo Mine Midterm Review No. 7 <br />Permit No. C-1981-019 June 6, 2016 <br />5 <br />