Metal and Diamond Mining Effluent Regulations

12 (1) Subject to subsection (3), the owner or operator of a mine shall, not less than once per week and at least 24 hours apart, collect from each final discharge point a grab sample or composite sample of effluent and, without delay, record the pH and concentrations of the deleterious substances set out in column 1 of Schedule 4.

(2) Testing conducted under subsection (1) shall comply with the analytical requirements set out in Schedule 3 and shall be done in accordance with generally accepted standards of good scientific practice at the time of the sampling using documented and validated methods.

(3) The owner or operator is not required to collect samples for the purpose of recording the concentrations of cyanide set out as item 3 of Schedule 4 if that substance is not used as a process reagent within the operations area.