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Oklahoma Administrative Code (Last Updated: March 11, 2021) |
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TITLE 460. Department of Mines |
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Chapter 20. The Permanent Regulations Governing the Coal Reclamation Act of 1979 |
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Subchapter 27. Surface Mining Permit Applications: Minimum Requirements for Reclamation and Operation Plans |
SECTION 460:20-27-6. Operation plan: blasting
Latest version.
- (a) Blasting plan. Each application shall contain a blasting plan for the proposed permit area, explaining how the applicant will comply with the requirements of Sections 460:20-43-18 through 460:20-43-23 of this Chapter. This plan shall include, at a minimum, information setting forth the limitations the operator will meet with regard to ground vibration and airblast, the bases for those limitations, and the methods to be applied in controlling the adverse effects of blasting operations.(b) Monitoring system. Each application shall contain a description of any system to be used to monitor compliance with the standards of Section 460:20-43-22 including the type, capability, and sensitivity of any blast-monitoring equipment and proposed procedures and locations of monitoring.(c) Blasting near underground mines. Blasting operations within 500 feet of active underground mines require approval of the State and Federal regulatory authorities concerned with the health and safety of underground miners.(d) Electronic blasting detonation.(1) Definitions. As used in this Subsection only:(A) "Blasting site" means the area within fifty (50) feet, or any alternative distance provided in the blasting plan of the approved permit on file, of any holes loaded with explosives, blasting agents or detonators.(B) "Blasting area" means the area where flying rock may be considered dangerous, which shall be determined by the certified blaster.(C) "Loaded hole" means one that contains explosives or blasting agents with a primer where the hole has been stemmed and has a short length of connecting wire sticking out but does not have a firing device connected.(D) "Charged hole" means one that contains explosives or blasting agents with a primer where the hole has been tamped with a short length of connecting device sticking out and it does have a firing device connected.(2) For blasting operations using electronic blasting detonators, loaded holes shall be charged as near to blasting time as practical and in compliance with the known physical limitations and properties of the specific blasting materials and equipment specified by the manufacturer. Unless authorized by the Department, loaded holes shall be detonated within sixty (60) days from the date of loading. The date the holes are loaded shall be documented to determine compliance. This information shall become part of the Blasting Report Log.(3) During the loading of holes, only the work activities associated with the explosives operation will be permitted in the blasting site.(4) During charging and firing, only the work activities associated with the explosives operation will be permitted in the blasting area.(5) Loaded holes shall be marked and barricaded for identification and safety purposes.(6) Holes with easy accessibility to the public shall not be allowed to remain loaded as outlined in paragraph (d) (2) of this Subsection.