§ 89.133. Soil replacement.
(a) The minimum depth of soil and soil material to be reconstructed for prime farmland shall be 48 inches, or a depth equal to the depth of a subsurface horizon in the natural soil that inhibits root penetration, whichever is shallower. The Department shall specify a depth greater than 48 inches whenever necessary to restore productive capacity due to uniquely favorable soil horizons at greater depths. Soil horizons shall be considered as inhibiting root penetration if their densities, chemical properties or water-supplying capacities restrict or prevent penetration by roots of plants common to the vicinity of the permit area and have little or no beneficial effect on soil productive capacity.
(b) Soil material shall be replaced only on land which has been first returned to final grade and scarified unless site-specific evidence is provided to and approved by the Department showing that scarification will not enhance the capability of the reconstructed soil to achieve equivalent or higher levels of yield.
(c) The soil horizons or other suitable soil material shall be replaced in a manner that avoids excessive compaction and creates a reconstructed soil of equal or greater productive capacity than that which existed before mining.
(d) The B horizon or other suitable material specified in § 89.131(c) and (d) (relating to soil removal) shall be replaced to the thickness needed to meet the requirements of subsection (a).
(e) The A horizon specified in § 89.131(b) shall be replaced as the final surface soil layer. This surface soil layer shall equal or exceed the thickness of the original soil, as determined by § 89.122(b) (relating to prime farmlands) and be replaced in a manner that protects the surface layer from wind and water erosion before it is seeded or planted.
(f) Nutrients and soil amendments shall be applied as needed to quickly establish vegetative growth.
Source The provisions of this § 89.133 adopted December 19, 1980, 10 Pa.B. 4789, effective July 31, 1982, 12 Pa.B. 2382; amended July 30, 1982, 12 Pa.B. 2473, effective July 31, 1982, 12 Pa.B. 2382.
Cross References This section cited in 25 Pa. Code § 89.122 (relating to prime farmlands); and 25 Pa. Code § 89.131 (relating to soil removal).
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