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2.05.6(6) <br />(d)(i) A subsidence control plan is not required. <br />Not applicable. <br />(e)(F)(IV) Not applicable. <br />(f) A description of the subsidence control plan, prepared by appropriately <br />qualified professionals follows: <br />(f)(i) A description of the physical conditions, such as depth of cover, seam <br />thickness, and lithology, which affect the likelihood or extent of subsidence is <br />presented in Volume IIIA, Exhibit 15, 17 and 21. The depth of cover data is <br />presented on Map 27, Subsidence. <br />(f)(ii) A narrative of the detailed description of the mining method and other <br />measures to be taken which may affect subsidence follows: <br />(f)(ii)(A) Room and pillar and longwall mining will be used for coal removal. The size <br />sequence and timing for development is presented on Map 14 and 1413, Mine <br />Plan. <br />(f)(ii)(B) Nearly all of the areas to be mined are areas in which planned -subsidence <br />mining methods will be used. There are a few exceptions to this statement <br />as outlined below. <br />In order to protect against chimney subsidence, only development mining will <br />be performed in areas with less than 110 feet of overburden. <br />The subsidence implications dealing with mining in low overburden areas <br />adjacent to the fault trace are a concern. The First North Mains mined into <br />the fault in late 1997 or early 1998. Additionally, the Operator has probe <br />drilled the fault on numerous occasions. The fault is characterized as a <br />shear fault as opposed to a roll fault and little fracturing was noted. The <br />probe drilling has not encountered any appreciable waterwhich indicates the <br />fault trace is virtually dry. <br />PR -14 2.05-156- 03/14 <br />