sec.213Where explosives for shotfiring may be used

### sec.213 Where explosives for shotfiring may be used The person directly supervising and controlling a shotfiring activity at an underground mine must ensure the place where the explosives are prepared, charged or fired has the following features— a general body concentration of methane of less than 0.5%; a ventilation current capable of quickly diluting and removing any atmospheric contaminants released by the shot; its exposed surfaces within a radius of 20m from the location of the shot are— thoroughly saturated with water; or treated with stonedust so the deposited dust mixture comprises an incombustible coal dust concentration of at least 85%. Subsection (1) (c) does not apply to an excavation— in stone and in which— the full length of the shothole is in stone; and no coal is exposed, or coal dust deposited, within a 20m radius of the shot location; or more than 5m from the nearest known coal seam. (sec.213-ssec.1) The person directly supervising and controlling a shotfiring activity at an underground mine must ensure the place where the explosives are prepared, charged or fired has the following features— a general body concentration of methane of less than 0.5%; a ventilation current capable of quickly diluting and removing any atmospheric contaminants released by the shot; its exposed surfaces within a radius of 20m from the location of the shot are— thoroughly saturated with water; or treated with stonedust so the deposited dust mixture comprises an incombustible coal dust concentration of at least 85%. (sec.213-ssec.2) Subsection (1) (c) does not apply to an excavation— in stone and in which— the full length of the shothole is in stone; and no coal is exposed, or coal dust deposited, within a 20m radius of the shot location; or more than 5m from the nearest known coal seam. - (a) a general body concentration of methane of less than 0.5%; - (b) a ventilation current capable of quickly diluting and removing any atmospheric contaminants released by the shot; - (c) its exposed surfaces within a radius of 20m from the location of the shot are— (i) thoroughly saturated with water; or (ii) treated with stonedust so the deposited dust mixture comprises an incombustible coal dust concentration of at least 85%. - (i) thoroughly saturated with water; or - (ii) treated with stonedust so the deposited dust mixture comprises an incombustible coal dust concentration of at least 85%. - (i) thoroughly saturated with water; or - (ii) treated with stonedust so the deposited dust mixture comprises an incombustible coal dust concentration of at least 85%. - (a) in stone and in which— (i) the full length of the shothole is in stone; and (ii) no coal is exposed, or coal dust deposited, within a 20m radius of the shot location; or - (i) the full length of the shothole is in stone; and - (ii) no coal is exposed, or coal dust deposited, within a 20m radius of the shot location; or - (b) more than 5m from the nearest known coal seam. - (i) the full length of the shothole is in stone; and - (ii) no coal is exposed, or coal dust deposited, within a 20m radius of the shot location; or