Pulp and Paper Effluent Regulations

20 The maximum BOD of the BOD matter and the maximum quantities of suspended solids that the owner or operator of a mill referred to in paragraph 15(1)(b) may be authorized to deposit, or to permit the deposit of, under an authorization are as follows:

• (a) in respect of a daily period, the amounts determined using the formula

  Q_d = (F₁ × 2.5 × RPR₁) + (F₂ × 2.5 × RPR₂)

and

• (b) in respect of a month, the amounts determined using the formula

  Q_m = (F₁ × D × 1.5 × RPR₁) + (F₂ × D × 1.5 × RPR₂)

  where

  D

  is the number of calendar days in the month,

  F₁

  is equal to a factor of 5 for BOD and 7.5 for suspended solids, expressed in kilograms per tonne of finished product other than dissolving grade sulphite pulp,

  F₂

  is equal to a factor of 18 for BOD and 25 for suspended solids, expressed in kilograms per tonne of dissolving grade sulphite pulp,

  Q_d

  is the maximum BOD of the BOD matter that may be deposited during a daily period or the maximum quantity of suspended solids that may be deposited during a daily period, as the case may be, expressed in kilograms,

  Q_m

  is the maximum BOD of the BOD matter that may be deposited during a month or the maximum quantity of suspended solids that may be deposited during a month, as the case may be, expressed in kilograms,

  RPR₁

  is the reference production rate of the mill for all finished product other than dissolving grade sulphite pulp, expressed in tonnes per day, and

  RPR₂

  is the reference production rate of the mill for dissolving grade sulphite pulp, expressed in tonnes per day.