25 Pa. Code § 89.84 - Backfilling and grading
(a) A surface
area disturbed incidental to underground mining activities shall be backfilled
and graded in accordance with the time schedule in the reclamation plan and
§§ 87.141, 87.142, 87.144 and 87.145.
(b) Backfilled material shall be placed to
prevent adverse effects on groundwater, prevent offsite effects and support the
approved postmining land use.
Notes
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