When the surface mining activities are affecting lands that had previously been mined to prior current practices and standards, the Department may approve, in writing, terracing as an alternative to contouring of the areas if the operator demonstrates that:
25 Pa. Code § 87.142
This section cited in 25 Pa. Code § 87.68 (relating to reclamation information); 25 Pa. Code § 87.104 (relating to stream channel diversions); 25 Pa. Code § 87.140 (relating to contemporaneous reclamation); 25 Pa. Code § 87.141 (relating to backfilling and grading: general requirements); 25 Pa. Code § 87.174 (relating to steep slope operations); 25 Pa. Code § 87.175 (relating to variance to contouring); 25 Pa. Code § 87.180 (relating to prime farmland: soil replacement); and 25 Pa. Code § 89.84 (relating to backfilling and grading).