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... .. , -zz- XIX. Bonding - Rule 2.05.4(2)(b) and Rule 3 Sunland Mining Corporation has agreed to post a performance bond in the amount of $34,121.92. The Division has determined that the amount as calculated in the application plus 10'~ administrative costs will be sufficient to cover the cost of reclamation at the Apex No. 2 Mine. Pursuant to Rules 2.07.6(2)(j) and 3.02.1(1), the performance bond in the amount of Thirty Seven Thousand and Five Hundred Dollars ($37,500.00) must be filed with the Division, payable to the State of Colorado and the Federal government before a permit will be issued. XX. Sealin of Drill Holes and Under round 0 enin s - Rules 2.05.4 2 9 and 4.07 The appropriate information satisfying these requirements is provided on pages 184, 190.2 and 190.3 of the application. The applicant has committed to resealing the portal of the old Apex No. 1 Mine, as well as the portal of the Apex No. 2 Mine. XXI. Subsidence - Rules 2.05.6(6) and 4.20 Subsidence information is included in Section 2.05.6(6) on pages 194-211. The D.H. Emling Company, consulting mining and geological engineering firm, provided a subsidence control plan for the Apex No. 2 Mine. A seasonally occupied ranch house structure was identified over the potentially affected subsidence area. Fifty percent recovery room and pillar method will be employed beneath the ranch house. The pillar support will be provided by uniformly distributed pillars with minimum dimensions of 20' by 30' and there will be no pillar extraction in this area. It is estimated that a 50'~ barrier pillar will result in little or no subsidence to the surface. Sunland Mining Corporation has committed to the monitoring of the ranch house and has also committed to the required monitoring and report frequencies. If damage should occur to the structure, the permittee would be required under the performance standards of Rule 4.20.3(2) to " restore, rehabilitate, or remove and replace each damaged structure, feature or value, promptly after damage is suffered..." Based on the hydrologic investigation summarized earlier in this document, it can be concluded that any subsidence above the planned mined areas would have a negligible, if any, impact on the ground water in the permit and adjacent area.