R.C.S.A. § 29-349-243
Misfire. Precautions
Cite as Conn. Agencies Regs. § 29-349-243
If a misfire occurs or is suspected, no person shall return to the victinity of the misfire until at least one hour after the misfire if the shot was cap and fuse firing, or minimum of 30 minutes for electric firing. If there is reason to believe that the explosive is burning in the hole, no person shall return to the vicinity of the misfire for at least 12 hours, and the site shall be guarded in the interim.