25 Pa. Code § 90.129 - Coal refuse disposal: abandoned unreclaimed surface mines
(a) The volume of coal refuse to be disposed
in the pit may not exceed in thickness 60% of the height of the highwall, if
the applicant can demonstrate the overburden and coal refuse can be graded to
approximate original contours and the disposal of the coal refuse will not
create a water pollution problem.
(b) The coal refuse shall be disposed at a
minimum of 10 feet above the base of the pit floor or the seasonal high water
table whichever is higher.
(c) The
coal refuse shall be spread and compacted in 2-foot layers, meet the
requirements of §
90.125 (relating to coal refuse
disposal: construction requirements) and may not exceed the volume set forth in
subsection (a).
(d) The coal refuse
may not be deposited against an exposed coal seam. An exposed coal seam shall
be covered by nonacid, nontoxic and noncombustible spoil at a minimum of 2.5
times the thickness of the coal.
(e) The Department may require treatment of
the coal refuse.
Notes
This section cited in 25 Pa. Code § 90.39 (relating to ponds, impoundments, banks, dams, embankments, piles and fills).
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