Metal and Diamond Mining Effluent Regulations

14 (1) Subject to section 15, the owner or operator of a mine shall collect, once a month, a grab sample of effluent from each final discharge point and determine whether the effluent is acutely lethal by conducting acute lethality tests on aliquots of each effluent sample in accordance with sections 14.1 to 14.4.

(2) For the purposes of subsection (1), the owner or operator of a mine

• (a) shall select and record the sampling date not less than 30 days in advance of collecting the grab sample;

• (b) shall collect the sample on the selected day except if, owing to unforeseen circumstances, they cannot sample on that day, in which case, they shall do so as soon as practicable after that day; and

• (c) shall collect the grab samples not less than 15 days apart.

(3) When collecting a grab sample of effluent for the purposes of subsection (1), the owner or operator of a mine shall

• (a) collect a sufficient volume of effluent to enable the owner or operator to comply with paragraph 15(1)(a); and

• (b) record the temperature and the pH of each grab sample of effluent at the time of the sample’s collection.