PART XXIX UNDERGROUND OPERATIONS — Ventilation monitoring
590
(1) An employer shall appoint a competent worker who shall measure the barometric pressure outside the mine and the velocity and quantity of air in the airways and old workings of the mine that are accessible to workers.
590(2)
An employer shall ensure that measurements under subsection (1) are, at a minimum, taken
590(a)
at the main airway as near as is reasonably practicable to the point at which the air enters or leaves the mine;
590(b)
within each split or part of the mine
590(i)
as near as is reasonably practicable to the points at which air enters and leaves the split or part of the mine, and (ii) in longwall workings, within 10 metres of the working face in the intake and return airways;
590(c)
in other mining methods, as near as is reasonably practicable to the last open cross cut;
590(d)
as near as is reasonably practicable to the working face of each active heading; and
590(e)
at seals along intake air courses where intake air passes by a seal to ventilate active working sections.
590(3)
An employer shall ensure that the measurements under subsection (1) are taken at least once a week.
590(4)
Where the quality or quantity of air passing a place where the measurements are taken may be substantially affected because the ventilation system of a mine is altered, an employer shall ensure that the appointed worker repeats the measurements as soon as the effect of the alteration would be apparent.
Not legal advice. Verify the cited article against the signed agreement.