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application includes portal seal designs (Figures 3.7-1 and 3.7-2) which depict a keyed in concrete <br />block seal a minimum of 25 feet in from the portal opening, which would be backfilled with <br />incombustible material. This design meets the applicable MSHA requirements at 30 CFR 75.1711. <br />VI. Use of Explosives — Rule 4.08 <br />No specific approvals are granted to the applicant under this section. <br />VII. Disposal of Excess Spoil — Rule 4.09 <br />No specific approvals are granted to the applicant under this section. <br />VIII. Coal Mine Waste Banks — Rule 4.10 <br />No specific approvals are granted to the applicant under this section. <br />IX. Coal Mine Waste — Rule 4.11 <br />Coal mine waste in the form of coal fines scraped up from the coal yard area, high ash coal <br />that cannot be blended and shipped, and coaly sediment from the cleanout of ditches, sediment traps <br />and the sediment pond once was previously approved to be be disposed of in an approved permanent <br />coal mine waste disposal site in the adjacent Munger Canyon Mine permit area (Permit No. C-81- <br />020). Detailed construction and reclamation designs for the coal waste disposal site were approved <br />by the Division pursuant to Technical Revision 14 (TR -14) to the Munger Canyon Mine permit, in <br />November 2002. Specific findings pursuant to Rule 4.10.1(2), allowing for disposal of waste <br />material from sources outside of the permit area, were at that mine included in the approved permit <br />for the Munger Canyon Mine. Development work was completed in the fall of 2004 and initial waste <br />disposal at the Munger Canyon disposal site occurred in late November 2004. Several small <br />temporary coal waste stockpiles are approved in the vicinity of the product coal stockpile at the <br />McClane Canyon Mine. With the approval of TR -16 for the McClane Canyon Mine in 2009, a new <br />plan for the coal mine waste disposal site was approved. The technical revision allowed for the <br />construction of a coal mine waste disposal site within the McClane Canyon Mine permit area, in the <br />vicinity of the existing sediment pond and soil stockpiles. Final capacity of the disposal site would <br />be approximately 38,000 cubic yards. Additional disturbed area would be approximately 4.75 acres <br />and would include relocated soils stockpiles and a new sedimentation pond. Technical Revision No. <br />16 was approved in 2009 after the reclamation of the reclamation of the coal mine waste disposal <br />site at the Munger Canyon Mine had begun. Bond Release Application SL -03 for the Munger <br />Canyon Mine received Final Approval on October 10, 2018. This action additionally resulted in the <br />termination of Division jurisdiction over the Munger Canyon Mine. <br />The McClane Canyon application also notes that rock slope material will be disposed of in <br />areas of the mine that are no longer actively producing coal, as authorized by MSHA. As noted on <br />page 7 of the Division's February 19, 1999 mid-term review document, disposal within the mine is <br />limited to rock generated during the normal course of mining operations, in accordance with standard <br />industry practice, and in compliance with applicable MSHA requirements. Return of coal mine <br />waste from the surface to underground workings is not approved. <br />