S.C. Code Regs. 71-8302.6 - Blasting Safety and Operations

A. The contractor, operator, and the blaster are responsible for the conduct of blasting operations on any site.

B. These regulations do not relieve the contractor, operator, blaster or other persons of their responsibility and liability prescribed in other laws.

C. The OSFM may require the use of a seismograph on any blasting operation where damage to personal property has or may occur.

D. A Seismograph shall be used on all blasting operations:

(1) within 1500 feet of a building,

(2) where the scaled distances shown in NFPA 495 are not followed, or

(3) when directed by the OSFM.

E. Operators shall notify the OSFM within 24 hours of any injuries, fires, thefts, property damage, or deaths caused by the use of explosive materials. The operators shall provide the OSFM with a copy of the report filed with the police department or the incident report from the fire department. Operators must also provide the OSFM Office with a copy of ATF Form 5400.5.

F. The operator shall have their license in their possession when handling, possessing or using explosive materials and shall show their license when asked by any AHJ.

G. A digital or hard copy of the blasting permit shall be made available at the firing station.

H. The following sequence shall be followed for each blast:

1. A warning signal shall be given before every blast. Warning signals shall comply with the following:

a. Warning signal is a one (1) minute series of long horn or siren blasts five (5) minutes before the blast signal.

b. Blast signal is a series of short horn or siren blasts one (1) minute before the shot.

c. All clear signal is a prolonged horn or siren blast following the inspection of the blast area.

2. The signal shall be made from an air horn, siren or other device, and must be loud enough to be clearly heard in all areas that could be affected by the blast or flyrock from the blast. The signal must be distinctive and unique so that it cannot be confused with any other signaling system that might occur on the site. A vehicle horn shall not be used as a signaling system.

Notes

S.C. Code Regs. 71-8302.6

Added by State Register Volume 23, Issue No. 6, eff June 25, 1999. Amended by State Register Volume 29, Issue No. 4, eff April 22, 2005; State Register Volume 33, Issue No. 5, eff May 22, 2009; State Register Volume 38, Issue No. 4, eff April 25, 2014; State Register Volume 38, Issue No. 6, eff 6/27/2014; State Register Volume 39, Issue No. 06, eff. 6/26/2015; State Register Volume 40, Issue No. 06, eff. 6/24/2016; State Register Volume 47, Issue No. 05, eff. 5/26/2023.