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Pulp and Paper Effluent Regulations (SOR/92-269)

Regulations are current to 2024-05-01 and last amended on 2018-09-26. Previous Versions

SCHEDULE VII(Paragraph 35(1)(f))Dissolved Oxygen Monitoring Program

Monitoring Stations

  • 1 For the purposes of the dissolved oxygen monitoring program, the monitoring stations are

    • (a) the outfall station, located at latitude 49°14.35′N, and longitude 124°49.10′W;

    • (b) the HI-2 station, located at latitude 49°13.92′N, and longitude 124°49.17′W;

    • (c) the PP-2 station, located at latitude 49°12.98′N, and longitude 124°49.30′W; and

    • (d) the 5 km station, located at latitude 49°11.80′N, and longitude 124°49.00′W.


  • 2 Readings of the parameters set out in section 3 shall be taken at each monitoring station

    • (a) once per week during the period beginning on June 1 and ending on October 31 in each year; and

    • (b) three times per month during the period beginning on November 1 and ending on May 31 in each year, and a period of at least seven days shall intervene between the sampling.

  • 3 The following parameters shall be recorded at each monitoring station in vertical profiles, from the surface to the bottom, using a CTD (conductivity, temperature, depth) probe:

    • (a) the depth in metres;

    • (b) the temperature in degrees Celsius;

    • (c) the salinity in parts per thousand; and

    • (d) the quantity of dissolved oxygen in milligrams per litre and in per cent air saturation.


    • 4 (1) For the purpose of checking the calibration of the CTD probe in respect of the recording of dissolved oxygen, a grab sample shall be taken once during each sampling day in accordance with section 2 at the station set out in paragraph 1(c), at depths of 1, 10 and 20 m, and shall be analysed using the Winkler dissolved oxygen analysis method.

    • (2) For the purpose of checking the calibration of the CTD probe in respect of the recording of salinity, instrument specifications should be followed.

Data To Be Submitted

    • 5 (1) The data to be submitted under subsection 36(1) of the Regulations are the following:

      • (a) the parameters set out in paragraphs 3(b), (c) and (d), measured at the surface, at the bottom and at depths of 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 15, 20, 25, 30, 35, 40 and 50 m, where these depths exist, for each monitoring station;

      • (b) the Somass River flow, in cubic metres per second, at sampling location 08HB017, for the appropriate day in the year in question as recorded on the Hydat database of the federal Department of the Environment;

      • (c) the tide height, in metres, for the appropriate day in the year in question, as set out in the Canadian Tide and Current Tables, published by the Department of Fisheries and Oceans; and

      • (d) the results of the analyses conducted in accordance with subsection 4(1).

    • (2) Each of the data referred to in subsection (1) shall include a statement of the hour in the 24-hour format and the date in month, day, year format.

  • SOR/2004-109, s. 34
  • SOR/2008-239, s. 18(F)

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