Louisiana Administrative Code
Title 43 - NATURAL RESOURCES
Part XV - Office of Conservation-Surface Mining
Subpart 5 - Permanent Program Performance Standards
Chapter 53 - Permanent Program Performance Standards: Surface Mining Activities
Section XV-5414 - Backfilling and Grading: Previously Mined Areas

Universal Citation: LA Admin Code XV-5414

Current through Register Vol. 50, No. 9, September 20, 2024

A. Remining operations on previously mined areas that contain a preexisting highwall shall comply with the requirements of §5405-5413 and 5703, except as provided in this Section.

B. The requirements of §5405. B.1 requiring the elimination of highwalls shall not apply to remining operations where the volume of all reasonably available spoil is demonstrated in writing to the office 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 office, that the highwall remnant is stable; and

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.

AUTHORITY NOTE: Promulgated in accordance with R.S. 30:901-932.

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