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  1. Metal and Diamond Mining Effluent Regulations - SOR/2002-222 (Section 15)
    •  (1) If an effluent sample is determined to be acutely lethal by an acute lethality test, the owner or operator of a mine shall

      • (a) without delay,

        • [...]

        • (ii) record the concentration of total ammonia and, using that concentration and using the temperature and pH recorded under paragraph 14(3)(b), determine the concentration of un-ionized ammonia in accordance with the formula set out in subsection 12(4), and

      • (b) collect a grab sample twice a month from the final discharge point from which the effluent sample determined to be acutely lethal was collected, record the temperature and the pH of each sample at the time of its collection and, without delay, conduct the acute lethality test that determined the effluent sample to be acutely lethal on each grab sample in accordance with the procedure set out in section 6 of the applicable reference method and, if the sample is determined to be acutely lethal, without delay,

        • [...]

        • (ii) record the concentration of total ammonia and, using that concentration and using the temperature and pH recorded under this paragraph, determine the concentration of un-ionized ammonia in accordance with the formula set out in subsection 12(4), and

    [...]


  2. Metal and Diamond Mining Effluent Regulations - SOR/2002-222 (Section 12)
    •  (1) 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

      • [...]

      • (b) a grab sample of effluent and record the temperature and the pH of the sample at the time of its collection and record, without delay after collecting the sample, the concentrations of total ammonia expressed as nitrogen (N).

    • [...]

    • (4) The owner or operator of a mine shall determine and record the concentration of un-ionized ammonia, using the temperature, pH and concentration of total ammonia recorded under paragraph (1)(b), in accordance with the following formula:

      A (1/(1 + 10pKa-pH))

      where

      pKa 
      is a dissociation constant calculated in accordance with the following formula:

      0.09018 + 2729.92/T

      where

      T 
      is the temperature of the effluent sample in kelvin.

    [...]


  3. Metal and Diamond Mining Effluent Regulations - SOR/2002-222 (SCHEDULE 5 : Environmental Effects Monitoring Studies)

    [...]

    [...]

    • 4 (1) Effluent characterization is conducted by analyzing a sample of effluent and recording the hardness, alkalinity, electrical conductivity and temperature of the sample and the concentrations, in total values, of the following substances:

      [...]

    [...]

    • 7 (1) Water quality monitoring is conducted by

      • [...]

      • (b) recording the temperature of the water and the dissolved oxygen concentration in the water in the exposure and reference areas where the samples are collected;

    [...]


  4. Metal and Diamond Mining Effluent Regulations - SOR/2002-222 (SCHEDULE 3 : Analytical Requirements for Metal or Diamond Mining Effluent)

    [...]

    TABLE 1

    Column 1 Column 2 Column 3 Column 4
    Item Deleterious Substance/pH/temperature PrecisionFootnote 1 AccuracyFootnote 2 Method Detection Limit (MDL)
    11 Temperature 10% ± 0.5 °C Not Applicable

    [...]


  5. Metal and Diamond Mining Effluent Regulations - SOR/2002-222 (SCHEDULE 5 : Environmental Effects Monitoring Studies)

    [...]

    [...]

    • 4 (1) Effluent characterization is conducted by analyzing a sample of effluent and recording the hardness, alkalinity, electrical conductivity and temperature of the sample and the concentrations, in total values, of the following substances:

      [...]

    [...]

    • 7 (1) Water quality monitoring is conducted by

      • [...]

      • (b) recording the temperature of the water and the dissolved oxygen concentration in the water in the exposure and reference areas where the samples are collected;

    [...]



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