13 NCAC 07F .0715          UNDERWATER BLASTING

Additions and amendments to 29 CFR 1926.912 Underwater Blasting apply throughout the Rules in this Section as follows:

(a)           In underwater blasting, no shot shall be fired without the approval of the Blaster-in-Charge.

(c)           Only water‑resistant detonators and detonating cords shall be used for all marine blasting. Loading shall be done through a nonsparking loading tube when tube is necessary.

(d)           No blast shall be fired while any vessel under way is closer than 1,500 feet to the blast site. Those on board vessels or craft moored or anchored within 1,500 feet shall be notified before a blast is fired.  Note:  The warning signals and personnel safety provisions of 1926.909 also apply.

(g)           The storage and handling of explosives aboard vessels used in underwater blasting operations shall be in accordance with the provisions of this Standard on handling and storing explosives.

(h)           Prior to firing the blast, the blaster shall determine the method(s) that will be used for detecting misfires and take preparatory steps (e.g., noting obvious indications of misfire, attaching float(s) that will be released by the firing, staging underwater cameras, or other appropriate means).  Misfires shall be handled in accordance with the requirements of 1926.911.

History Note:        Authority G.S. 95-131;

Recodified from 13 NCAC 07F .0201 Eff. August 3, 2005;

Pursuant to G.S. 150B-21.3A rule is necessary without substantive public interest Eff. March 1, 2016.