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XX. Bonding - Rules 2.05.4(2)(b) and 3 <br />The specific findings required under this section which were made in the <br />July, 1987 Findings Document have not been modified by the proposed revision <br />and those findings remain applicable. The addition of the 60 acre lease <br />parcel has not increased the cost of reclaiming the site, as determined by the <br />Division. <br />The operation is in compliance with the requirements of this section. <br />XXI. Sealing of Drill Holes and Underground Openings - <br />u es g an ~ <br />The specific findings required under this section which were made in the <br />July, 1987 Findings Document have not been modified by the proposed revision <br />and those findings remain applicable. <br />The operation is in compliance with the requirements of this section. <br />XXII. Subsidence - Rules 2.05.6(6) and 4.20 <br />Information pertaining to subsidence is addressed in the original permit <br />application as well as revised page 2.05.6-18 of the revision application, and <br />the July, 1987 findings Document. <br />NKC has demonstrated that one structure (the Huntington Irrigation Ditch) and <br />one potential renewable resource area (Pine Gulch Drainage) occur in the <br />current permit area. Mining will not occur beneath the Pine Gulch Drainage <br />and thus subsidence impacts will be avoided. In order to detect any impacts <br />to the Huntington Ditch, the operator conducts a semi-annual survey of <br />subsidence monuments, as well as quarterly visual inspection for subsidence <br />features and quarterly ditch inspections. <br />Based on information and mapping submitted by NKC, the Division has determined <br />that no structures or renewable resource areas overlie any portion of the <br />revision area or adjacent area. As a result, a subsidence survey was not <br />required for the revision area, nor was a subsidence control plan or a revised <br />monitoring program. The operator will continue the subsidence monitoring <br />program as described above, within the original permit area. <br />The operation in in compliance with the requirements of this section. <br />XXIII. Special Categories of Mining other than AVF and Prime Farmland <br />Rules 2.06, 4.22, 4.23, 4.24, 4.2/ and 4.Ly <br />The specific findings required under this section which were made in the <br />July, 1987 Findings Document have not been modified by the proposed revision <br />and those findings remain applicable. <br />The operation is in compliance with the requirements of this section. <br />-8- <br />