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<regulation prefix="Regulation" num=".16" citation="COMAR 26.20.02.16" title_num="26" subtitle_num="20" chapter_num="02" heading="Subsidence Control Plan.">
  <text>A subsidence control plan, if required under Regulation .15 of this chapter, shall include:</text>
  <paragraph num="A.">
    <text>A detailed description of the mining method and other measures to be taken which may affect subsidence, including:</text>
    <paragraph num="(1)">
      <text>The technique of coal removal, such as longwall mining, room and pillar with pillar removal, hydraulic mining, or other methods, including the size, sequence, and timing for the development of underground workings;</text>
    </paragraph>
    <paragraph num="(2)">
      <text>A description of the physical conditions, such as depth of cover, seam thickness, and lithology, which affect the likelihood or extent of subsidence and subsidence-related damage; and</text>
    </paragraph>
    <paragraph num="(3)">
      <text>A map of the underground workings which describes the location and extent of all areas when:</text>
      <paragraph num="(a)">
        <text>Planned subsidence mining methods will be used, and</text>
      </paragraph>
      <paragraph num="(b)">
        <text>Subsidence prevention or damage mitigation methods described in §B of this regulation will be used;</text>
      </paragraph>
    </paragraph>
  </paragraph>
  <paragraph num="B.">
    <text>A detailed description of the measures to be taken to prevent subsidence from causing material damage or lessening the value or reasonably foreseeable use of the surface, including:</text>
    <paragraph num="(1)">
      <text>The anticipated effects of planned subsidence, if any;</text>
    </paragraph>
    <paragraph num="(2)">
      <text>Measures, if any, to be taken in the mine to reduce the likelihood of subsidence, including such measures as:</text>
      <paragraph num="(a)">
        <text>Backstowing or backfilling of voids,</text>
      </paragraph>
      <paragraph num="(b)">
        <text>Leaving support pillars of coal, and</text>
      </paragraph>
      <paragraph num="(c)">
        <text>Areas in which no coal removal is planned, including a description of the overlying area to be protected by leaving coal in place,</text>
      </paragraph>
    </paragraph>
    <paragraph num="(3)">
      <text>Measures to be taken on the surface to prevent material damage or lessening of the value or reasonably foreseeable use of the surface including such measures as:</text>
      <paragraph num="(a)">
        <text>Reinforcement of sensitive structures or features,</text>
      </paragraph>
      <paragraph num="(b)">
        <text>Installation of footers designed to reduce damage caused by movement,</text>
      </paragraph>
      <paragraph num="(c)">
        <text>Change of location of pipelines, utility lines, or other features,</text>
      </paragraph>
      <paragraph num="(d)">
        <text>Relocation of movable improvements to sites outside the angle of draw, and</text>
      </paragraph>
      <paragraph num="(e)">
        <text>Monitoring to determine the commencement and degree of subsidence so that other appropriate measures can be taken to prevent or reduce material damage;</text>
      </paragraph>
    </paragraph>
  </paragraph>
  <paragraph num="C.">
    <text>A detailed description of the measures to be taken to mitigate the effects of any material damage or diminution of value or foreseeable use of lands which may occur, including one or more of the following:</text>
    <paragraph num="(1)">
      <text>Restoration or rehabilitation of structures and features, including approximate land-surface contours, to premining conditions;</text>
    </paragraph>
    <paragraph num="(2)">
      <text>Replacement of structures destroyed by subsidence;</text>
    </paragraph>
    <paragraph num="(3)">
      <text>Purchase of structures before mining and restoration of the land after subsidence to a condition capable of supporting and suitable for the structures and foreseeable land uses;</text>
    </paragraph>
    <paragraph num="(4)">
      <text>Purchase of noncancellable insurance policies payable to the surface owner in the full amount of the possible material damage or other comparable measures;</text>
    </paragraph>
  </paragraph>
  <paragraph num="D.">
    <text>If required by the Bureau, a detailed description of measures to be taken to determine the degree of material damage or diminution of value of foreseeable use of the surface, including such measures as:</text>
    <paragraph num="(1)">
      <text>Presubsidence surveys of all structures and surface features which might be materially damaged by subsidence; and</text>
    </paragraph>
    <paragraph num="(2)">
      <text>Monitoring to measure deformations near specified structures or features or otherwise as appropriate for the operation;</text>
    </paragraph>
  </paragraph>
  <paragraph num="E.">
    <text>A description of the measures to be taken in accordance with COMAR 26.20.13.05 and COMAR 26.20.13.09:</text>
    <paragraph num="(1)">
      <text>To replace adversely affected water supplies; or</text>
    </paragraph>
    <paragraph num="(2)">
      <text>To mitigate or remedy any subsidence-related material damage to the land and protected structures; and</text>
    </paragraph>
  </paragraph>
  <paragraph num="F.">
    <text>Other information specified by the Bureau as necessary to demonstrate that the operation will be conducted in accordance with the performance standards of COMAR 26.20.13.</text>
  </paragraph>
</regulation>