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e-CFR data is current as of August 6, 2020

Title 30Chapter VIISubchapter KPart 816 → §816.106


Title 30: Mineral Resources
PART 816—PERMANENT PROGRAM PERFORMANCE STANDARDS—SURFACE MINING ACTIVITIES


§816.106   Backfilling and grading: Previously mined areas.

(a) Remining operations on previously mined areas that contain a preexisting highwall shall comply with the requirements of §§816.102 through 816.107 of this chapter, except as provided in this section.

(b) The requirements of §816.102(a) (1) and (2) requiring the elimination of highwalls shall not apply to remining opertions where the volume of all reasonably available spoil is demonstrated in writing to the regulatory authority to be insufficient to completely backfill the reaffected or enlarged highwall. The highwall shall be eliminated to the maximum extent technically practical in accordance with the following criteria:

(1) All spoil generated by the remining operation and any other reasonably available spoil shall be used to backfill the area. Reasonably available spoil in the immediate vicinity of the remining operation shall be included within the permit area.

(2) The backfill shall be graded to a slope which is compatible with the approved postmining land use and which provides adequate drainage and long-term stability.

(3) Any highwall remnant shall be stable and not pose a hazard to the public health and safety or to the environment. The operator shall demonstrate, to the satisfaction of the regulatory authority, that the highwall remnant is stable.

(4) Spoil placed on the outslope during previous mining operations shall not be disturbed if such disturbances will cause instability of the remaining spoil or otherwise increase the hazard to the public health and safety or to the environment.

[48 FR 41734, Sept. 16, 1983, as amended at 51 FR 41737, Nov. 18, 1986; 81 FR 93392, Dec. 20, 2016; 82 FR 54979, Nov. 17, 2017]

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