N.J. Admin. Code § 12:190-7.17

Current through Register Vol. 57, No. 1, January 6, 2025

Section 12:190-7.17 - Blast hole loading

(a) Blasting operations shall be under the direct supervision of a blaster holding the proper grade permit to use explosives.

(b) The blast hole loading crew shall be limited to four helpers for each blaster holding a permit to use explosives. When two or more blasting crews are used, the crews shall be separated by a practical distance consistent with efficient operation and supervision of crews.

(c) No intoxicating liquors or drugs shall be allowed in the blast area. No persons under the influence of intoxicating liquors or drugs shall be allowed in the blast area.

(d) No smoking or open flame devices shall be allowed within 100 feet of the blast area except for devices used in the lighting of safety fuse.

(e) All handling and use of explosive materials shall be immediately discontinued upon the approach of a thunderstorm and all persons in the area shall immediately seek a safe place.

(f) When preparing initiating primers, the work shall be performed adjacent to the blast hole just prior to using the primer. A nonsparking punch shall be used for the making of the hole in the explosive cartridge so that the detonator can be completely encased in the cartridge freely. Once each primer charge has been assembled, it shall be inserted immediately into the blast hole.

(g) Primer cartridges shall not be split, dropped, forced, tamped, or abused in any way when inserting them into the blast hole.

(h) The loading of the blast holes shall be as close to scheduled firing time as possible. When there is a delay, the loaded blast holes shall be under the observation of a guard stationed in the area.

(i) No explosive materials shall be loaded and left overnight without the approval of the Commissioner.

(j) During the loading operation, the blaster shall have a helper with him or her at all times to assist in the loading operation.

(k) When using plastic pipe as a loading pole, there shall be a nonsparking plug at the end of the pole which is used for tamping the explosive charges.

N.J. Admin. Code § 12:190-7.17

Administrative correction.
See: 29 New Jersey Register 566(a).
Amended by R.1998 d.110, effective 3/2/1998.
See: 29 New Jersey Register 4624(a), 30 New Jersey Register 847(a).
Deleted (b) and recodified existing (c) through (e) as (b) through (d); recodified existing (f) as (e) and deleted "static sensitive"; recodified existing (g) as (f) and added a new last sentence; recodified existing (h) and (i) as (g) and (h); recodified existing (j) as (i) and deleted "into a blast hole"; rewrote and recodified existing (k) as (j); and added a new (k).