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COLORADO <br />Division of Reclamation, <br />j&7 Mining and Safety <br />Department of Natural Resources <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />June 11, 2018 <br />To: Clayton Wein <br />From: Brock Bowles <br />RE: Munger Canyon Mine, C-1981-020 <br />Bond Release No. 3 (SL -3) <br />I have finished my review of the Munger Canyon bond release application No. 3. A summary of <br />each reclamation standard is included below for inclusion into the findings document. <br />Cover <br />Cover data was collected during the 2016 and 2017 growing seasons for the bond release and <br />reference areas. Sample adequacy was achieved for cover in both the bond release and reference <br />areas for 2016 and 2017. The cover success standard for the bond release block shall be not less than <br />90% of the reference area in a direct comparison test (Rule 4.15.8(3)(a)). <br />The total plant cover in 2016 was 35.0% which exceeded the reclamation standard of 17.8%. The <br />allowable plant cover in 2017 was 34.7% which exceeded the reclamation standard 22.2%. The cover <br />standard was demonstrated to be successful for both 2016 and 2017. <br />Production <br />Production data was collected during the 2016 and 2017 growing seasons for the bond release and <br />reference areas. Sample adequacy was achieved for production in both the bond release and reference <br />areas for 2016 and 2017. The production success standard for the bond release block shall be not less <br />than 90% of the reference area in a direct comparison test (Rule 4.15.8(4)). <br />The allowable herbaceous production in 2016 was 374.9 lbs/ac which exceeded the reclamation <br />standard of 66.4 lbs/ac. The allowable herbaceous production in 2017 was 622.4 lbs/ac which <br />exceeded the reclamation standard of 211.0 lbs/ac. The production standard was demonstrated to <br />be successful for both 2016 and 2017. <br />Woody Plant Density <br />Woody plant density data was collected during the 2016 and 2017 growing seasons for the bond <br />release and reference areas. Sample adequacy was achieved for woody plant density in both the bond <br />release and reference areas for 2016 and 2017. The woody plant standard is a technical standard, <br />ov. C 0 <br />H <br />1313 Sherman Street, Room 215, Denver, CO 80203 P 303.866.3567 F 303.832.8106 http://mining.state.co.us I <br />John W. Hickenlooper, Governor I Mike King, Executive Director I Virginia Brannon, Director * r 1876 <br />