6 (1) For the purpose of paragraph 36(4)(b) of the Act, the owner or operator of a wastewater system may — during a given calendar year, quarter or month, as determined in accordance with subsection (2) — deposit or permit the deposit of effluent that contains any of the deleterious substances prescribed in section 5 of these Regulations via each of the system’s final discharge points in any water or place referred to in subsection 36(3) of the Act if the effluent is not acutely lethal as determined in accordance with section 15, the maximum concentration of un-ionized ammonia in the effluent is less than 1.25 mg/L, expressed as nitrogen (N), at 15˚C ± 1˚C, and — during the previous calendar year, previous quarter or previous month, as the case may be — the effluent met the following conditions:
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