Metal and Diamond Mining Effluent Regulations — 1
1 (1) The following definitions apply in these Regulations. Act means the Fisheries Act . ( Loi ) acute lethality test [Repealed, SOR/2018-99, s. 2] acutely lethal , in respect of an effluent, means that the effluent at 100% concentration kills (a) more than 50% of the rainbow trout subjected to it for a period of 96 hours, when tested in accordance with the acute lethality test set out in section 14.1; (b) more than 50% of the threespine stickleback subjected to it for a period of 96 hours, when tested in accordance with the acute lethality test set out in section 14.2; (c) more than 50% of the Daphnia magna subjected to it for a period of 48 hours, when tested in accordance with the acute lethality test set out in section 14.3; or (d) more than 50% of the Acartia tonsa subjected to it for a period of 48 hours, when tested in accordance with the acute lethality test set out in section 14.4. ( létalité aiguë ) acutely lethal effluent [Repealed, SOR/2018-99, s. 2] authorization officer [Repealed, SOR/2018-99, s. 2] commercial operation , in respect of a mine, means an average rate of production equal to or greater than 10% of the design-rated capacity of the mine over a period of 90 consecutive days. ( exploitation commerciale ) composite sample means (a) a quantity of effluent consisting of not less than three equal volumes or three volumes proportionate to flow that have been collected at approximately equal time intervals over a sampling period of not less than seven hours and not more than 24 hours; or (b) a quantity of effluent collected continuously at a constant rate or at a rate proportionate to the rate of flow of the effluent over a sampling period of not less than seven hours and not more than 24 hours. ( échantillon composite ) Daphnia magna monitoring test [Repealed, SOR/2018-99, s. 2] deleterious substance [Repealed, SOR/2018-99, s. 2] diamond mine means any work or undertaking that is designed or is used, or has been used, in connection with a mining or milling activity to produce a diamond or an ore from which a diamond may be produced. It includes any cleared or disturbed area that is adjacent to such a work or undertaking. ( mine de diamants ) effluent means any of the following: (a) hydrometallurgical facility effluent, milling facility effluent, mine water effluent, tailings impoundment area effluent, treatment pond effluent or treatment facility effluent other than effluent from a sewage treatment facility; or (b) any seepage or surface runoff containing any deleterious substance that flows over, through or out of the site of a mine. ( effluent ) final discharge point , in respect of an effluent, means an identifiable discharge point of a mine beyond which the operator of the mine no longer exercises control over the quality of the effluent. ( point de rejet final ) grab sample [Repealed, SOR/2018-99, s. 2] hydrometallurgical facility effluent means effluent from the acidic leaching, solution concentration and recovery of metals by means of aqueous chemical methods, tailings slurries, and all other effluents deposited from a hydrometallurgical facility. ( effluent d’installations d’hydrométallurgie ) hydrometallurgy means the production of a metal by means of aqueous chemical methods for acidic leaching, solution concentration and recovery of metals from metal-bearing minerals other than metal-bearing minerals that have been thermally pre-treated or blended with metal-bearing minerals that have been thermally pre-treated. ( hydrométallurgie ) metal mine means any work or undertaking that is designed or is used, or has been used, in connection with a mining, milling or hydrometallurgical activity to produce a metal or a metal concentrate or an ore from which a metal or a metal concentrate may be produced, as well as any cleared or disturbed area that is adjacent to such a work or undertaking. It includes any work or undertaking, such as a smelter, pelletizing plant, sintering plant, refinery or acid plant, i