Section 1823.14 Prime
Farmland: Soil Replacement
Surface coal mining and
reclamation operations on prime farmland shall be conducted according to the
following:
a) Requirements
1) The minimum depth of soil and soil material to be
reconstructed for prime farmland shall be 48 inches except where a natural rock
formation occurs at shallower depths. The Department shall specify a depth
greater than 48 inches wherever necessary to restore productive capacity due to
uniquely favorable soil horizons at greater depths; and
2) Subsections (a)(1) and (d) shall not apply to prime farmland
fragipan soils. Prime farmland fragipan soil shall be reconstructed in
accordance with 62 Ill. Adm. Code 1825.14(a)(1), (a)(2), (a)(3), and (a)(5).
For the purposes of this provision, prime farmland fragipan soils are specific
soils classified as prime farmland that are underlain with a diagnostic
subsurface horizon designated as a fragipan by the Soil Conservation Service of
the U.S. Department of Agriculture according to the criteria set in Soil
Taxonomy, U.S.D.A. Handbook AH 436, including the following soils found in
Illinois: Ava, Grantsburg, and Hosmer series as defined by the Soil
Interpretation Sheets of the Natural Resources Conservation Service;
b) Replace soil material only on land which has been first
returned to final grade and scarified according to 62 Ill. Adm. Code 1816.101
through 1816.105 or 62 Ill. Adm. Code 1817.101 through 1817.105, unless
site-specific evidence is provided and approved by the Department showing that
scarification will not enhance the capability of the recommended soil to
achieve equivalent or higher levels of yield;
c) Replace the soil horizons or other suitable soil material in a
manner that avoids excessive compaction;
d) Replace the B horizon or other suitable material specified in
Section 1823.12(a)(2) and (a)(3) to the thickness needed to meet the
requirements of subsection (a) of this Section. In those areas where the B or
C horizons were not removed but may have been compacted or otherwise damaged
during the mining operation, the permittee shall engage in deep tillage or
other appropriate means to restore pre-mining capabilities;
e) Replace the A horizon or other suitable soil materials
specified in Section 1823.12(a)(1) as the final surface soil layer. This
surface soil layer shall equal or exceed the thickness of the original soil, as
determined in 62 Ill. Adm. Code 1785.17(b)(1)(B) and be replaced in a manner
that protects the surface layer from wind and water erosion before it is seeded
or planted;
f) Apply nutrients and soil amendments as needed to quickly
establish vegetative growth;
g) Prime farmland shall have a planned erosion control system if
expected soil loss from row crop production will exceed the tolerable soil loss
limits as defined by "Resource Conservation Planning Technical
Material-IL-4" (May 12, 1977). "Resource Conservation Planning
Technical Material-IL-4", issued by the U.S. Department of Agriculture,
Natural Resources Conservation Service, located at 1902 Fox Drive, Champaign,
Illinois 61820, is hereby incorporated by reference and does not include later
editions or amendments. Terrace systems, when utilized as part of a planned
erosion control system, shall be constructed according to U.S. Department of
Agriculture, Natural Resources Conservation Service specifications. Erosion
control plans in compliance with this subsection shall be submitted to and
approved by the Department after final grading based on seasonal factors, the
extent of the area, and the sophistication of the erosion control plan.
(Source: Amended at 24 Ill. Reg. 5989, effective March 21, 2000)