459.311D  Stockpiling dry manure on karst terrain.
  A person stockpiling dry manure on karst terrain shall comply with all of the following:
  1.  The person shall stockpile the dry manure at a location where there is a vertical separation distance of at least five feet between the bottom of the stockpile and the underlying limestone, dolomite, or other soluble rock.
  2.  A person who stockpiles dry manure for more than fifteen consecutive days shall use any of the following:
  a.  A qualified stockpile structure.
  b.  A qualified stockpile cover. However, the person shall not stockpile dry manure using a qualified stockpile cover at a long-term stockpile location unless the stockpile is located on reinforced concrete at least five inches thick.
2009 Acts, ch 38, §12, 16