Section 1816.105  Backfilling and Grading:  Thick Overburden

In surface coal mining where the thickness of the overburden is large relative to the thickness of the coal deposit and where the operator demonstrates that the volume of the spoil and other waste materials is more than sufficient to restore the disturbed area to approximate original contour, the operator shall, at a minimum, after restoring to approximate original contour:

a)         Use the spoil and waste materials to attain the lowest practicable grade, but not more than the angle of repose;

b)         Meet the requirements of Sections 1816.102(a)(2) through 1816.102(j); and

c)         Dispose of any excess spoil in accordance with Sections 1816.71 through 1816.74.

(Source:  Amended at 11 Ill. Reg. 8131, effective July 1, 1987)